ЛИТИЕВЫЙ АККУМУЛЯТОР

Изобретение относится к литиевым аккумуляторам. Безрамный литиевый аккумулятор с корпусом содержит по меньшей мере одну ячейку, включающую в себя два электрода, не имеющих органических связывающих веществ, токосъемники, разделенные сепараторами, и жидкий электролит, состоящий из раствора соли лития в органическом растворителе. Токосъемники представляют собой перфорированные металлические ленты в виде металлической сетки, тянутого металла или перфорированной металлической фольги. При этом каждый электрод выполнен путем запрессовки смеси активных материалов и компонентов с электронной проводимостью, не имеющей органических связывающих веществ, непосредственно в отверстия перфорированных металлических лент по обеим сторонам токосъемников. Причем минимальная толщина электродов в три раза превышает толщину токосъемника, а толщина токосъемника составляет 30-500 мкм. Изобретение позволяет создать литиевый аккумулятор с электродами с уменьшенным временем заряда и разряда, при этом сохранив высокую ...

УСОВЕРШЕНСТВОВАННЫЕ МЕМБРАНЫ, КАЛАНДРИРОВАННЫЕ МИКРОПОРИСТЫЕ МЕМБРАНЫ, АККУМУЛЯТОРНЫЕ СЕПАРАТОРЫ И СООТВЕТСТВУЮЩИЕ СПОСОБЫ

Изобретение относится к новым или усовершенствованным микропористым одно- или многослойным аккумуляторным разделительным мембранам, сепараторам, батареям, включающим такие мембраны или сепараторы, способам изготовления таких мембран, сепараторов и/или батарей и/или способам применения таких мембран, сепараторов и/или батарей. Согласно изобретению способ изготовления многослойного полиэтилен/полипропилен/полиэтиленового микропористого сепаратора включает растяжение в продольном направлении с последующим растяжением в поперечном направлении и последующую стадию каландрирования как средство сокращения толщины многослойной микропористой мембраны для снижения относительной пористости многослойной микропористой мембраны в контролируемом режиме и/или для повышения прочности при растяжении в поперечном направлении. Техническим результатом являются превосходные характеристики механической прочности. 3 н. и 17 з.п. ф-лы, 4 табл., 42 ил.

РАЗДЕЛИТЕЛЬ ДЛЯ ЩЕЛОЧНОЙ БАТАРЕИ И ЩЕЛОЧНАЯ БАТАРЕЯ

Изобретение относится к разделителю, используемому в различных щелочных батареях, таких как щелочно-марганцевые батареи, батареи с окисью серебра, ртутные батареи, воздушно-цинковые батареи, и к щелочной батарее, использующей разделитель. Техническим результатом является улучшенная надежность предотвращения внутреннего короткого замыкания, наличие хороших свойств удержания жидкости и экранировки. Согласно изобретению, разделитель для щелочных батарей содержит влажный текстильный материал, содержащий по меньшей мере волокна щелочестойкой целлюлозы и щелочестойкие синтетические волокна, и связанный связующим компонентом; причем средний диаметр пор влажного текстильного материала составляет от 1 мкм до 10 мкм. Кроме того, в разделителе для щелочных батарей использован влажный текстильный материал, имеющий максимальный диаметр пор от 20 до 60 мкм, коэффициент удержания жидкости от 400% до 700% во время погружения в 40% по массе раствор KOH и степень набухания от 30% до 45% во время погружения ...

НЕТКАНЫЙ МАТЕРИАЛ С ЗАПОЛНЕНИЕМ ЧАСТИЦАМИ

Полотно для сепаратора выполнено на основе нетканого материала, включающего в себя волокна и первичные поры, образованные указанными волокнами, который, по меньшей мере, частично заполнен частицами, и указанные частицы, по меньшей мере, частично заполняют первичные поры и образуют области, заполненные частицами. Согласно изобретению слой может быть сконструирован и усовершенствован таким образом, что имеет небольшую толщину, высокую пористость и термическую устойчивость. При этом частицы в заполненных областях образуют вторичные поры, а средний диаметр частиц превышает средний размер пор для большинства вторичных пор. После каландрирования полотна происходит его сглаживание за счет максимально плотной упаковки частиц в первичных порах волокнистого материала. Полученное полотно имеет небольшую толщину, обладает высокой пористостью, термической устойчивостью в широком диапазоне температур и дешево в изготовлении, что является техническим результатом предложенного изобретения. Полотно пригодно ...

АККУМУЛЯТОРНАЯ ЛИТИЕВАЯ БАТАРЕЯ, ИСПОЛЬЗУЮЩАЯ СЕПАРАТОР, ЧАСТИЧНО ПОКРЫТЫЙ ГЕЛЕОБРАЗНЫМ ПОЛИМЕРОМ

Изобретение относится к аккумуляторной литиевой батарее, использующей сепаратор, частично покрытый гелеобразным полимером, и сборке электрода, и к аккумуляторной литиевой батарее, содержащей их. Согласно изобретению сепаратор для батареи покрыт гелеобразным полимером на 40-60% от общей площади сепаратора. Техническим результатом является уменьшение сопротивления батареи, так что мощность батареи может быть улучшена. В дополнение к этому, сепаратор увеличивает скорость пропитки электролитом и обеспечивает однородную пропитку электролитом, тем самым улучшая время действия, емкость и свойства батареи при больших токах разряда. Кроме того, сепаратор делает возможным однородное осуществление электродных реакций, тем самым предотвращая осаждение лития и улучшая безопасность батареи. 3 н. и 3 з.п. ф-лы, 7 ил.

УСОВЕРШЕНСТВОВАННЫЕ МЕМБРАНЫ, КАЛАНДРИРОВАННЫЕ МИКРОПОРИСТЫЕ МЕМБРАНЫ, АККУМУЛЯТОРНЫЕ СЕПАРАТОРЫ И СООТВЕТСТВУЮЩИЕ СПОСОБЫ

Изобретение относится к усовершенствованным микропористым одно- или многослойным аккумуляторным разделительным мембранам, способам их изготовления. Техническим результатом является механическая прочность, повышенная производительность. Способ изготовления многослойной полиэтилен/полипропилен/полиэтиленовой микропористой мембраны включает растяжение в продольном направлении с последующим растяжением в поперечном направлении и последующую стадию каландрирования, как средство сокращения толщины многослойной микропористой мембраны, для снижения относительной пористости мембраны в контролируемом режиме и для повышения прочности при растяжении в поперечном направлении. Таким образом, получается тонкая многослойная микропористая мембрана, на которую легко наносятся полимер-керамические покрытия, которая имеет превосходные характеристики механической прочности благодаря ее внутреннему полипропиленовому слою и функцию термического отключения благодаря ее полиэтиленовым слоям. 6 н. и 9 з.п. ф-лы, ...

СЕПАРАТОР ДЛЯ АККУМУЛИРУЮЩЕГО УСТРОЙСТВА И АЛЮМИНИЕВЫЙ ЭЛЕКТРОЛИТИЧЕСКИЙ КОНДЕНСАТОР

Изобретение относится к сепаратору, подходящему для алюминиевого электролитического конденсатора, а также к алюминиевому электролитическому конденсатору, использующему этот сепаратор. Сепаратор содержит 20-80 мас.% измельчаемых гидрат-целлюлозных волокон, имеющих значение CSF от 0 до 500 [мл] и 20-80 мас.% измельчаемых гидрат-целлюлозных волокон, имеющих значение CSF от 1 до 500 [мл], которое повышается, и значение CSF Х [мл] и индекс сопротивления раздиранию Y [мН*м/г] сепаратора находятся в пределах диапазонов, удовлетворяющих следующим формулам: 0≤X≤300, 15≤Y≤100, Y≤0,175X-2,5. Изобретение позволяет создавать сепаратор, имеющий превосходные характеристики сопротивления раздиранию, сплошности и импеданса. 2 н. и 4 з.п. ф-лы, 2 ил., 1 табл.

КОМПОЗИЦИЯ, ПРИГОДНАЯ В КАЧЕСТВЕ ТВЕРДОГО ЭЛЕКТРОЛИТА ИЛИ СЕПАРАТОРА ДЛЯ ЭЛЕКТРОХИМИЧЕСКИХ ЭЛЕМЕНТОВ

Предложена композиция для электродов, твердого электролита или сепаратора для электрохимических элементов, содержащая смесь, состоящую из 1-95 мас.% твердого вещества, предпочтительно неорганического твердого вещества с размером первичных частиц от 5 нм до 20 мкм и 5-99 мас.% полимерной массы, получаемой полимеризацией 5-100 мас.%, в пересчете на массу продукта конденсации из многоатомного спирта, по меньшей мере, одного соединения, способного реагировать с карбоновой или сульфоновой кислотой, или их производным, или смесью двух или более из них, и, по меньшей мере, 1 моля на моль соединения карбоновой или сульфоновой кислоты, имеющей, по меньшей мере, одну радикально полимеризуемую функциональную группу, или их производного, или смеси двух или более их них, и 0-95 мас.%, в пересчете на массу одного соединения со средней (среднечисловой) молекулярной массой, по меньшей мере, 5000 с полиэфирными сегментами в главной или боковой цепи, причем массовая доля смеси в композиции составляет 1 - ...

БАТАРЕЯ НА ОСНОВЕ СЕРАОРГАНИЧЕСКИХ СОЕДИНЕНИЙ

Изобретение относится к раствору жидкого или гелеобразного электролита, содержащего по меньшей мере один безводный полярный беспротонный растворитель или полимер, по меньшей мере одну проводящую соль и по меньшей мере одно сераорганическое соединение, содержащее по меньшей мере один органический фрагмент и по меньшей мере одну -S-Sn-связь, где n равно целому числу от 2 до 5, причем указанные сераорганические соединения содержат одну или несколько серосодержащих функциональных групп, выбранных из группы, состоящей из дитиоацеталя, дитиокеталя, тритиоортокарбоксилата, ароматического полисульфида, полиэфир-полисульфида, полисульфид-кислой соли, органополисульфида, содержащего тритиокарбонатную функциональную группу, органо- или органометаллического полисульфида, содержащего дитиокарбонатную функциональную группу, органо- или металлоорганического полисульфида, содержащего монотиокарбонатную функциональную группу, и металлоорганического полисульфида, содержащего тритиокарбонатную функциональную ...

БИПОЛЯРНАЯ БАТАРЕЯ

Изобретение относится к области электротехники, а именно к биполярной батарее, состоящей из комбинации ячеек, загерметизированных для предотвращения смешивания между жидкостями и предотвращения коррозии периферийного устройства, вызванной утечкой жидкости. В указанной батарее операции инжектирования электролитического раствора приходится выполнять столько раз, сколько ячеек заполняется. Применение коллектора тока, сформированного в виде трубчатого проводника, один торец которого закрыт, а второй выступает наружу в виде выступа, позволяет уменьшить омические потери батареи. Кроме того, водоотталкивающий лист, расположенный на внутренней стороне каждого из коллекторов тока и помещенный между выступом соответствующего коллектора и элементом, генерирующим энергию, предотвращает возникновение короткого замыкания. Снижение сопротивления в местах контакта коллекторов является техническим результатом изобретения. 2 н. и 14 з.п. ф-лы, 12 ил.

СПОСОБ ПОЛУЧЕНИЯ МИКРОПОРИСТЫХ ПОЛИОЛЕФИНОВЫХ МЕМБРАН И МИКРОПОРИСТЫЕ МЕМБРАНЫ

... 1. Способ получения микропористых полиолефиновых мембран, включающий стадии (1) смешивания в расплаве полиолефина и мембранообразующего растворителя, (2) экструдирования полученного смешанного расплава через матричное отверстие, (3) охлаждения экструдата с образованием гелевой формы, (4) по меньшей мере, одноосного растяжения гелевой формы, (5) удаления мембранообразующего растворителя и (6) повторного растяжения полученной мембраны, причем температура повторного растяжения равна или ниже температуры кристаллизации РЕ +20°С, и скорость повторного растяжения составляет 3%/сек или более в направлении растяжения. ! 2. Способ по п.1, где увеличение при повторном растяжении составляет 1,1-2,5 раза в направлении повторного растяжения. ! 3. Способ по п.1, где мембрану термоотверждают при температуре, равной или ниже температуры плавления полиолефина +10°С после второго растяжения. ! 4. Способ по п.1, где после упомянутого повторного растяжения проводят отжиг таким образом, что длина мембраны в ...

МИКРОПОРИСТАЯ ПОЛИЭТИЛЕНОВАЯ МЕМБРАНА, СПОСОБ ЕЕ ИЗГОТОВЛЕНИЯ И СЕПАРАТОР ДЛЯ АККУМУЛЯТОРНОЙ БАТАРЕИ

... 1. Микропористая полиэтиленовая мембрана, выполненная из полиэтиленовой смолы с отношением средневесовой молекулярный вес/среднечисленный молекулярный вес от 5 до 300, содержащей 1 мас.% или более сверхвысокомолекулярного полиэтилена со средневесовым молекулярным весом 7·105 или более, причем микропористая полиэтиленовая мембрана содержит (а) крупноструктурированный слой со средним диаметром пор более 0,04 µм, который образован, по крайней мере, на одной из поверхностей, и (b) слой с плотной структурой, имеющий средний диаметр пор 0,04 µм или меньше, и при этом отношение площади крупноструктурированного слоя к площади слоя с плотной структурой в поперечном сечении мембраны составляет от 0,1 до 0,8. ! 2. Способ изготовления микропористой полиэтиленовой мембраны, включающий стадии смешения в расплаве полиэтиленовой смолы, имеющей отношение средневесовой молекулярный вес/среднечисленный молекулярный вес от 5 до 300 и содержащей 1 мас.% или более сверхвысокомолекулярного полиэтилена со средневесовым ...

МНОГОСЛОЙНАЯ, МИКРОПОРИСТАЯ ПОЛИЭТИЛЕНОВАЯ МЕМБРАНА, РАЗДЕЛИТЕЛЬ АККУМУЛЯТОРА, ИЗГОТОВЛЕННЫЙ ИЗ НЕЕ, И АККУМУЛЯТОР

... 1. Многослойная, микропористая полиэтиленовая мембрана, содержащая (а) первый микропористый слой, выполненный из полиэтиленовой смолы, и (b) второй микропористый слой, содержащий полиэтиленовую смолу и термостойкую смолу с точкой плавления или температурой стеклования 170°С или выше в форме мелкодисперсных частиц, диспергированных в полиэтиленовой смоле, и второй микропористый слой с порами, содержащими мелкодисперсные частицы термостойкой смолы в качестве ядра, от которого начинается расщепление волокон полиэтиленовой смолы. ! 2. Многослойная, микропористая полиэтиленовая мембрана, содержащая (а) первый микропористый слой, выполненный из полиэтиленовой смолы, и (b) второй микропористый слой, содержащий полиэтиленовую смолу и термостойкую смолу с точкой плавления или температурой стеклования 170°С или выше в форме мелкодисперсных частиц, диспергированных в полиэтиленовой смоле, и с увеличением воздушной проницаемости при сжатии с нагревом при температуре 90°С и давлении 2,2-5 мПа в течение ...

МИКРОПОРИСТАЯ ПОЛИЭТИЛЕНОВАЯ МЕМБРАНА, СПОСОБ ЕЕ ПОЛУЧЕНИЯ И РАЗДЕЛИТЕЛЬ БАТАРЕИ

... 1. Полиэтиленовая микропористая мембрана, выполненная из полиэтиленовой смолы, содержащей 15 мас.% или менее полиэтилена сверхвысокой молекулярной массы со среднемассовой молекулярной массой 1·106 или более, которая состоит из слоя плотной структуры со средним диаметром пор 0,01-0,05 мкм и слоя грубозернистой структуры, сформированного, по меньшей мере, на одной поверхности, со средним диаметром пор слоя грубозернистой структуры в 1,2-5,0 раз больше, чем в слое плотной структуры. ! 2. Полиэтиленовая микропористая мембрана по п.1, в которой полиэтиленовая смола состоит из полиэтилена сверхвысокой молекулярной массы и полиэтилена высокой плотности. ! 3. Полиэтиленовая микропористая мембрана по п.1, в которой отношение толщины слоя грубозернистой структуры к слою плотной структуры составляет 5/1-1/10. ! 4. Способ получения полиэтиленовой микропористой мембраны, включающий стадию экструзии расплава смеси полиэтиленовой смолы, содержащей 15 мас.% или менее полиэтилена сверхвысокой молекулярной ...

ТЕРМОСТОЙКАЯ МИКРОПОРИСТАЯ ПЛЕНКА ИЗ СИНТЕТИЧЕСКОЙ СМОЛЫ, СЕПАРАТОР ДЛЯ ВТОРИЧНОЙ БАТАРЕИ С НЕВОДНЫМ ЖИДКИМ ЭЛЕКТРОЛИТОМ, ВТОРИЧНАЯ БАТАРЕЯ С НЕВОДНЫМ ЖИДКИМ ЭЛЕКТРОЛИТОМ И СПОСОБ ПОЛУЧЕНИЯ ТЕРМОСТОЙКОЙ МИКРОПОРИСТОЙ ПЛЕНКИ ИЗ СИНТЕТИЧЕСКОЙ СМОЛЫ

БАТАРЕЯ НА ОСНОВЕ СЕРАОРГАНИЧЕСКИХ СОЕДИНЕНИЙ

СЕПАРАТОР И АЛЮМИНИЕВЫЙ ЭЛЕКТРОЛИТИЧЕСКИЙ КОНДЕНСАТОР

СВИНЦОВО-КИСЛОТНАЯ АККУМУЛЯТОРНАЯ БАТАРЕЯ

... 1. Свинцово-кислотная аккумуляторная батарея со свободным электролитом, содержащая:блок пластин, включающий в себя:отрицательную пластину с введенным в токоотвод отрицательного электрода отрицательным активным материалом; иположительную пластину с введенным в токоотвод положительного электрода положительным активным материалом,причем отрицательная пластина и положительная пластина уложены друг на друга через сепаратор и помещены в аккумуляторный контейнер вместе с электролитом, а свинцово-кислотная аккумуляторная батарея со свободным электролитом разряжается на нагрузку в частично заряженном состоянии,при этом только отрицательная пластина приведена в контакт по всей своей поверхности с нетканым полотном, образованным из по меньшей мере одного волокнистого материала, выбранного из группы материалов, состоящей из стекла, целлюлозы и полиолефина, не составляющим одно целое с пластиной, иприведенная в контакт с нетканым полотном отрицательная пластина заключена в конверт-сепаратор, образованный ...

СВИНЦОВО-КИСЛОТНАЯ БАТАРЕЯ

... 1. Свинцово-кислотная батарея, имеющая конфигурацию, в которой группа пластин, образованная укладкой отрицательных пластин, где отрицательный токоотвод наполнен отрицательным активным материалом, и положительных пластин, где положительный токоотвод наполнен положительным активным материалом, через сепаратор, содержится вместе с электролитом в контейнере, при этомотрицательный активный материал содержит чешуйчатый графит и продукт конденсации бисфенолов и аминобензолсульфоновой кислоты в отрицательном активном материале, исредний диаметр первичных частиц чешуйчатого графита составляет 100 мкм или более и 220 мкм или менее.2. Свинцово-кислотная батарея по п. 1, при этом содержание чешуйчатого графита в отрицательном активном материале составляет от 0,5 до 2,7 мас.% чешуйчатого графита в расчете на 100 мас.ч. отрицательного активного материала (губчатый металлический свинец) в полностью заряженном состоянии.3. Свинцово-кислотная батарея по п. 1, при этом содержание чешуйчатого графита в отрицательном ...

Dreilagiger, mikroporöser Batterieseparator

Poröse biaxial-orientierte Folie aus hochmolekularen Ethylen-Alpha-Olefin Copolymeren und ihre Anwendung

Zweilagiger Batterieseparator mit Shutdown-Charakteristik

Galvanische Zelle mit verbesserter Lebensdauer

POLYMER FOLIE

Separator mit kraftschlüssig eingespannten Partikeln

Die vorliegende Erfindung betrifft einen Separator (10) für eine elektrochemische Zelle, insbesondere eine Lithium-Zelle, sowie ein entsprechendes Herstellungsverfahren. Um einen Separator mit einer erhöhten Dendriten-Resistenz zur Verfügung zu stellen, werden, insbesondere ionenleitende, Partikel (14) in Poren (12) einer Polymerschicht (11, 12) eingebracht und kraftschlüssig zwischen Poren (12) begrenzenden Polymerwänden (13) eingespannt. Darüber hinaus betrifft die Erfindung eine damit ausgestattete elektrochemische Zelle.

Separatormaterial für Speicherbatterien und Verfahren zu dessen Herstellung.

Separatormaterial für Speicherbatterien und Verfahren zu dessen Herstellung.

Elektrochemische Zelle

MIKROPORÖSES SEPARATORENMATERIAL FÜR ELEKTROCHEMISCHE ZELLEN, INSBESONDERE FÜR BLEI-SCHWEFELSÄURE-AKKUMULATOREN UND DAMIT HERGESTELLTE ZELLEN UND AKKUMULATOREN

Batterie

Batterie, Folgendes umfassend:einen Elektrodenkörper (20), der eine positive Elektrode und eine negative Elektrode umfasst, wobei der Elektrodenkörper (20) in einer flachen Form hergestellt ist; undein Batteriegehäuse (30), in dem der Elektrodenkörper (20) aufgenommen ist, wobei:das Batteriegehäuse (30) einen Batteriegehäuse-Hauptkörper (32) umfasst, der eine Öffnung, durch die der Elektrodenkörper (20) aufgenommen wird, und eine Abdeckung (34), welche die Öffnung des Batteriegehäuse-Hauptkörpers (32) verschließt, aufweist;der Batteriegehäuse-Hauptkörper (32) ein Paar breite Flächen (37), die flachen Flächen des Elektrodenkörpers (20), der in dem Batteriegehäuse (30) aufgenommen ist, gegenüber liegen, ein Paar schmale Flächen (38) neben den breiten Flächen (37) und eine Bodenfläche (39) umfasst;ein Plus-Elektroden-Außenanschluss (42) und ein Minus-Elektroden-Außenanschluss (44) an einer Außenfläche der Abdeckung (34) angeordnet sind, wobei sich die Außenfläche außerhalb des Batteriegehäuses ...

LITHIUM-IONEN-BATTERIE

Eine Lithium-Ionen-Batterie beinhaltet positive und negative Elektroden und einen nanoporösen oder mikroporösen Polymerseparator, der in einer Elektrolytlösung getränkt wurde und zwischen der positiven Elektrode und der negativen Elektrode eingebaut ist. Für die Komplexierung von Übergangsmetallionen sind Komplexbildner enthalten, die aber nicht die Bewegung der Lithiumionen durch den Separator während des Betriebs der Lithium-Ionen-Batterie beeinträchtigen. Die Komplexbildner sind: gelöst in der Elektrolytlösung; auf das Polymer des Separator gepfropft; an das Bindemittel der negativen und/oder positiven Elektrode gebunden; eine Schicht auf einer Oberfläche des Separators; und/oder auf einer Oberfläche der negativen und/oder positiven Elektrode. Die Komplexbildner sind ausgewählt aus: Ionenfallen in molekularer Form, ausgewählt aus der Gruppe bestehend aus Polyaminen, Thiolen und Alkalimetallsalzen organischer Säuren; Polymeren, funktionalisiert mit Alkalimetall salzen organischer Säuren ...

SEKUNDÄRBATTERIE MIT NICHT WÄSSRIGEM ELEKTROLYTEN

AUFEINANDERFOLGEND BIAXIAL AUSGERICHTETE, PORÖSE POLYPROPYLENFOLIE UND VERFAHREN IHRER HERSTELLUNG

SEPARATOR FÜR ZYLINDRISCHE ZELLEN

Lithiumionen-Akku und Verfahren zur Herstellung eines Lithiumionen-Akkus

Lithiumionen-Akku (1) mit einer Kathode (3), die ein metallisch leitendes Substrat (5) und eine auf dem Substrat (5) befindliche polykristalline Schicht (6) aufweist, mit einer Ionen leitenden Membranstruktur (4), die wenigstens eine Lithium leitende Schicht (11) aufweist, mit einer Anode (2), die sich aus einer polykristallinen Schicht (7) und einer metallisch leitenden Schicht (8) zusammensetzt, wobei die polykristalline Schicht (7) der Membranstruktur (4) zugekehrt ist, dadurch gekennzeichnet, dass die Lithium leitende Schicht (11) eine Polymerfolie ist, die ein Polymer mit einer Glasumwandlungstemperatur über 150°C aufweist und aufgrund physikalischer Behandlung Lithiumionen leitend ist.

Plasmabehandelte textile Flächengebilde, Verfahren zu deren Herstellung und deren Verwendung

Beschrieben werden plasmabehandelte textile Flächengebilde, enthaltend Kunstfasern, die eine hohe Anfangsbenetzbarkeit aufweisen, ausgedrückt durch eine Steighöhe von mindestens 80 mm nach 30 minütigem Eintauchen in eine wässrige Kaliumhydroxid-Lösung, und die nach dreimonatiger Lagerung bei 25 DEG C an der Luft eine hohe Anfangsbenetzbarkeit aufweisen, ausgedrückt durch eine Steighöhe von mindestens 75 mm nach 30 minütigem Eintauchen in eine wässrige Kaliumhydroxid-Lösung. DOLLAR A Die plasmabehandelten textilen Flächengebilde zeichnen sich ferner durch eine hohe Beständigkeit der Hydrophilie bei Lagerung in alkalischen Medien aus. DOLLAR A Die plasmabehandelten textilen Flächengebilde lassen sich insbesondere als Separatoren für elektrochemische Energiespeicher einsetzen.

Ionenleitender Batterieseparator für Lithiumbatterien, Verfahren zu deren Herstellung und die Verwendung derselben

Die Erfindung betrifft Separatoren für Lithiumbatterien sowie ein Verfahren zu deren Herstellung und deren Verwendung. DOLLAR A Die erfindungsgemäßen Separatoren für Lithiumbatterien auf Basis eines flächigen, mit einer Vielzahl von Öffnungen versehenen, flexiblen Subtrates mit einer auf und in diesem Substrat befindlichen porösen, anorganischen, elektrisch isolierenden Beschichtung, die die Öffnungen des Substrates verschließt, wobei das Material des Substrates ausgewählt ist aus gewebten oder ungewebten, nicht elektrisch leitfähigen Polymerfasern und die anorganische elektrisch leitfähige Beschichtung Metalloxidpartikel aufweist, zeichnen sich dadurch aus, dass die Separatoren ohne das Vorhandensein eines Elektrolyten Lithium-Ionen leitende Eigenschaften aufweisen. Nach dem Beladen mit einem zusätzlichen Lithium-Ionen leitenden Elektrolyten ergibt sich eine deutlich höhere Ionenleitung als bei herkömmlichen Kombinationen von nicht Lithium-Ionen leitenden Separatoren und Elektrolyt. DOLLAR ...

VERBUNDMEMBRAN AUS ALPHA,BETA,BETA-TRIFLUORSTYROL UND SUBSTITUIERTEM ALPHA,BETA,BETA-TRIFLUORSTYROL

ALKALISCHE PRIMAER-ZELLE

Polymer-Ionophor-Separator

Die vorliegende Erfindung betrifft eine Alkali-Chalkogen-Zelle, insbesondere Lithium-Schwefel-Zelle. Um die Langzeitstabilität und Lebensdauer der Alkali-Chalkogen-Zelle zu steigern, weist der Separator der Alkali-Chalkogen-Zelle eine Polymer-Ionophor-Komponente, insbesondere Polymer-Ionophor-Membran, (3, 4) auf, welche ein polymeres Matrixmaterial (5) und Alkali-Ionophore, insbesondere Lithium-Ionophore, (6) umfasst.

Verfahren zum Praeparieren von Holzscheidern

MIKROPORÖSER FILM

Batterieseparator

Abscheider für eine Lithium-Schwefel-Sekundärbatterie

Eine Lithium-Schwefel-Sekundärbatterie umfasst eine Schwefel-Kathode, eine Lithium-Anode, eine Ionomermembran und einen Zusatz-Flüssigkeitsabscheider. Die Lithium-Schwefel-Batterie weist zweifach Abscheider auf, wobei ein Abscheider geeignet ist zum ausreichenden Bereitstellen eines Elektrolyten an die Schwefel-Leiter-Kathode der Lithium-Schwefel-Batterie, und die Ionomermembran an der Lithium-Anode verwendet wird.

Trennwand fuer Plattenelektroden elektrischer Akkumulatoren

Alkalische Speicherbatterie mit zwei Separatoren

SEPARATOR FÜR BATTERIE

Gasdichte Bleisäurebatterie

Batterieseparator

Polyimides containing functionalities, in particular thermally and/or chemically labile functionalities, bonded to the pyromellitic diimide unit in the 3- and/or 6-position

The invention relates to polyimides containing functionalities, in particular thermally and/or chemically labile functionalities, bonded to the pyromellitic diimide unit in the 3- and/or 6-position, to a process for their preparation, by means of a polymer-analogous reaction, and to their use.

FESTELEKTROLYT-VERBUNDMEMBRAN FÜR ELEKTROCHEMISCHE REAKTIONSVORRICHTUNG

LITHIUMBATTERIE MIT HOHER ENTLADUNGSKAPAZITÄT

PORÖSE FOLIE AUS AROMATISCHEM POLYAMID, HERSTELLUNGSVERFAHREN DAFÜR UND SEKUNDÄRBATTERIE

Batterieseparator und Verfahren zu seiner Herstellung

Galvanisches Element und Separator mit verbesserten Sicherheitseigenschaften

Beschrieben wird ein galvanisches Element mit einer positiven Elektrode, einer negativen Elektrode und einem dazwischenliegenden Separator, wobei der Separator zumindest teilweise aus einem Polymer besteht, dessen Schmelz- und/oder Erweichungstemperatur > 200°C beträgt. Des Weiteren wird ein mehrlagiger Separator für galvanische Elemente, insbesondere für Lithium-Ionen-Batterien, beschrieben, der mindestens eine Lage aus dem Polymer mit einer Schmelz- und/oder Erweichungstemperatur > 200°C umfasst.

Batterieseparatoren, Verfahren zu deren Herstellung sowie die Verwendung derselben

Batterieseparatoren umfassend ein mittels Nadelung vorverfestigtes und mittels eines Glattkalanders kalibrierte Vlieses, das mit einem säurebeständigen Binder endverfestigt und mit einer Stichdichte von 30-60 Stichen pro cm2 genadelt ist und 10-25 Gew.-% Binder enthält.

Mehrschichtige mikroporöse Folie für Batterien mit Abschaltfunktion

Die Erfindung betrifft eine biaxial orientierte, mehrschichtige mikroporöse Folie aus einer Schicht mit Abschaltfunktion aus Propylenhomopolymer, einem Propylen-Blockcopolymer, einem Polyethylen und -Nukleierungsmittel und mindestens einer weiteren porösen Schicht.

Heterogeneous membranes - for fuel cells, contg polytetrafluorethylene powder and ion exchange resin and/or inert pow

Heterogeneous membranes for use in electrochemical devices, esp. in fuel cells, for sepg. substances dissolved in anolytes and catholytes, are prepd. by homogenising, esp. in a ball-mill, powdered ion exchanger resin and/or powdered inert material with PTFE powder and a highly viscous liq. to form a suspension removing highly viscous liq. by suction from suspension while evenly distributed on a filter device; washing remaining filter cake with a solvent which decomposes the highly viscous liq. and then pressing. Pref. carrier support consists of a coarse-meshed fabric, opt. of PTFE, embedded in suspension on filter device in a way such that fabric is surrounded on al sides by filter cake after removal of highly viscous liq. Pref. PTFE is hydrophilised on surface by etching.

Separator

Improvements in or relating to plate separators for electric accumulators

... 739,613. Batteries. COMPAGNIE GENERALE D'ELECTRICITE. Jan. 6, 1954 [Aug. 11, 1953], No. 394/54. Class 53. A separator for accumulator plates consists of a porous sheet 1 having ribs 2 with rounded ends 2a. On the opposite face of the separator are one or more projecting studs 3 which enter holes in and support the positive plate. A foot 4 supports the separator on a ledge on the base of the container. The negative plate or another porous sheet is supported on a shoulder 6 and is engaged at the edges by ribs 7. The lateral edges of the separator are provided with bosses 8 to centre the separator and plates in the container.

A process for the production of vulcanised microporous separators of raw rubber

A microporous hard or soft rubber composition is made by rubbing together a substance of high boiling point which raises the evaporation point of water and facilitates adsorption of water by rubber, e.g. glycerol or ethylene glycol, concentrated aqueous ammonia, sulphur, an accelerator of vulcanization, a filler such as kaolin, and then waterglass, until the gel which forms on incorporation of the waterglass is reduced to crumbs, mixing these crumbs on rollers with raw rubber, treating the mixture as by calendering or extending, and finally vulcanizing. The weight of gel, including the filler, may be five times that of the rubber. For increasing the porosity, substances such as starch and ammonium carbonate may be incorporated. When the product is to be used for separators for electric accumulators a metal-free accelerator such as tetramethylthiuramdisulphide is used.

POLYURETHANE POLYENE COMPOSITIONS

Improvements in or relating to electric dry batteries

... 617,001. Batteries. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Sept. 30, 1946, No. 29121. Convention date, Sept. 6, 1945. [Class 53] A battery comprising a number of cells stacked one above another is enclosed in a tightly stretched envelope 7 which is separated from a lacquer or other impermeable layer 5 on each cell by a film of adhesive 6. The layers 5 cover the upright sides of the zinc dishes 1 and meet the carbon layers 2 carried on the bottoms of the dishes. The adhesive 6 may consist of an asphalt compound or of a mixture of shellac and tricresylphosphate and the envelope 7 may be of polyvinylchloride which is stretched by immersion in acetone and applied to the battery while in the stretched condition. The envelope shrinks on drying. The envelope may also be stretched by heat and applied to the battery after cooling. Further heating causes it to shrink. The cells are completed by electrolyte layers 3 and depolarizing materials 4.

Improvements in or relating to battery separators and method of preparation thereof

... 727,417. Batteries. AUTO-LITE BATTERY CORPORATION. March 25, 1952, No. 7632/52. Class 53. A separator is made from cellulose fibres formed into a sheet and impregnated with a phenol formaldehyde resin. The sheet is provided with ribs which are provided with an additional quantity of resin on their upper surfaces and are tapered towards their lower ends. The separator may be treated with a wetting agent or the latter may be added to the battery electrolyte or incorporated in the resin dispersion. Fig. 1 shows a separator in which the ribs 28 are tapered as shown in section in Fig. 4. The thin end 30 of the taper is at the upper end of the separator and the ribs may extend the whole length of the separator or terminate short of the upper end as shown in Fig. 1. The ribs may be formed by moulding or by grinding away parts of the sheet material. A large sheet of the resin impregnated material may be ribbed and cut into pieces of the size required for the separators.

Separator

MOULDING COMPOSITION SUITABLE FOR THE PRODUCTION OF MICROPOROUS BATTERY SEPARATORS

PROCESS FOR PRODUCING A WEB USEFUL AS A BATTERY SEPARATOR

Polymeric sheet for electrode separator

A polymeric sheet useful as an electrode separator comprises a fabric formed from fibres which have been treated by a graft-polymerisation reaction with a component which renders the fabric hydrophilic. The grafting conditions are such that the said component grafts preferentially on one surface of the fabric compared with the opposite surface, making that surface more hydrophilic than the opposite surface, and that the hydrophilic character of at least the said opposite surface is substantially homogeneous over that surface.

Improved gas-permeable and liquid-proof porous electrodes

... 970,418. Electrodes. SOC. DES ACCUMULATEURS FIXES ET DE TRACTION. Nov. 16, 1960 [Nov. 17, 1959], No. 39425/60. Drawings to Specification. Heading H1B. A porous moisture-proof electrode of carbon; nickel, silver or cadmium is bound by polystyrene applied as a solution in trichlorethylene and slowly dried at 95-100‹ C. Catalysts may be added. The electrode is applicable to storage cells and fuel cells, but is specifically described in connection with an air-depolarized zinc/alkaline cell which is illustrated.

An improved battery separator and method of forming the same

A battery separator, and a method of forming the same, which exhibits good electrical conductivity and a high degree of inhibition to dendrite formation, is in the form of a thin sheet formed from a substantially uniform mixture of a thermoplastic rubber and a filler in a volume ratio of from about 1:0.15 to 1:0.6. The thermoplastic rubber is preferably a styrene/elastomer/styrene block copolymer.

GAMMA RADIATION GRAFTING PROCESS FOR PREPARING SEPARATOR MEMBRANES FOR ELECTROCHEMICAL CELLS

Reinforced membranes, diaphragms or other bodies of rubber having innumerable minute pores

... 259,542. Beckmann, H. Oct. 9, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Addition to 238,870. Separators; diaphragms. -The membranes and diaphragms forming the invention of the, parent Specification are modified by the provision of reinforcing means such as ribs, beads, frames, grids, &c. which are attached to or embedded in the membranes &c. The reinforcements are made of compact hard or soft rubber. Fig. 2 shows an edge view of a diaphragm a of porous rubber having an embedded frame b of compact hard rubber.

HYDROPHILIC POLYMER COATED MICROPOROUS MEMBRANES CAPABLE OF USE AS A BATTERY SEPARATOR

POROUS POLYMER ARTICLE

Microporous sheet and method for preparing same

... 1,148,852. Microporous coated sheet material. W. R. GRACE & CO. 3 May, 1967. [3 May, 1966], No. 20615/67. Heading B2E. A micro porous sheet is prepared by forming on a permeable substrate a micro porous layer of thermoplastic polymer by depositing on the substrate relatively large particles of a thermoplastic polymer and thereafter relatively small particles of a thermoplastic polymer, the small particles having a diameter less than two microns and the large particles having a diameter at least seven times the average diameter of the small particles; sintering the polymer particles either in one stage after both the large and the small particles have been deposited, or in two stages, one stage after the large particles have been deposited and one stage after the small particles have been deposited. The small particles may be from 0.01 to two microns diameter. The large particles may have an average diameter at least 40 times the average diameter of the small particles and may have a diameter ...

Porous film and method of producing the same

SHEATHED ELECTRODES FOR ELECTRIC STORAGE BATTERIES

... 1336601 Storage battery separators ELECTRIC POWER STORAGE Ltd 19 Jan 1971 [20 Jan 1970 7 Oct 1970] 2643/70 and 47703/70 Heading H1B [Also in Division B2] An electrode 10 for a lead-acid battery is formed with a porous separator envelope 31 of sintered plastics material closed at its bottom and side edges but open at the top to permit gas venting. Vertical ribs 33 on the inner surface of the envelope form passages 32 which facilitate gas venting and access of electrolyte to the electrode. In one method of forming the separator envelope on the electrode the latter, shown in chain-line in Fig. 1, is held between two metal combs 12, 13, each having nine prongs coated with P.T.F.E., the upper ends 25 of the combs being mounted on plates 17, 18 biased by springs surrounding bolts 19, 20 so that the combs pivot bosses 22, 23, 24 to grip the electrode. The pasted electrode mounted between the combs is heated to 240‹ C. and lowered into a fluidized bed of P.V.C. powder to the level 25 and held there ...

GRAFT COPOLYMER MOULDINGS

... 1451891 Moulding of graft polymers DEFENCE SECRETARY OF STATE FOR 19 Sept 1973 [25 Sept 1972] 44136/72 Heading C3G A moulding is produced from particulate polymer material in which the particles have a nucleus of thermoplastic polymer material surrounded by a cross-linked polymer layer and an outer polar graft copolymer layer, the said moulding having the property that when it is heated to a determinable temperature below the temperature at which it softens the particles separate with respect to their nearest neighbours such that the material disintegrates to its original particulate form. The thermoplastic polymer forming the nuclei of the particles may be polyethylene, polypropylene, polytetrafluoroethylene, partially fluorinated polyolefin, partially chlorinated polyolefin or nylon and the monomer used to form the outer graft polymer layer and optionally also to act as cross-linking agent in the cross-linked polymer layer may be an ethylenically unsaturated carboxylic acid, acrylamide ...

Improvements in or relating to plate separators for electric accumulators

... 790,750. Batteries. COMPAGNIE GENERALE D'ELECTRICITE. Dec. 19, 1956 [Dec. 19, 1955], No. 38742/56. Addition to 739,613. Class 53. The separator according to the parent Specification is provided with a sloping roof h which covers the upper edge of the adjacent negative electrode to prevent the deposition of particles of active material which may have become detached from the positive electrode and suspended in the electrolyte. For the same purpose the projection d on which the positive electrode is suspended is prolonged upwards by a tapered rib j and the foot f is tapered as shown, the parts of the separator adjacent the projection d and foot f being imperforated. The bosses c which centre the separator in the battery container are also tapered and a collar g surrounds the terminal lug of the negative plate. One side of the separator is provided with projections b which engage the upper edge of the positive plate to retain it in position. Notches l provide for the escape of gas evolved ...

SEPARATOR FOR STORAGE BATTERIES AND A METHOD OF MANUFACTURING SUCH A SEPARATOR

SEPARATORS FOR SECONDARY CELLS

SEPARATORS FOR ELECTROLYTIC CELLS

... 1451892 Coated electrode D E F E N C E SECRETARY OF STATE FOR 19 Sept 1973 [25 Sept 1972] 44137/72 Heading B2E [Also in Division H1] A separator positioned between a positive electrode and a negative in an electrolytic cell comprises a moulding of particulate polymer material comprising particles having a nucleus of thermoplastic polymer material surrounded by a cross-linked polymer layer and an outer polar graft-copolymer layer. Preferably at least 30% of the particles have a diameter less than 100. The thermoplastics material forming the nucleus of the particles may also form the base polymer of the outer graft-copolymer layer and when cross-linked a cross-linked polymer layer. Preferably the thermoplastics material is selected from polyethylene, polypropylene, polytetrafluoroethylene, partially fluorinated polyolefins, partially chlorinated polyolefins or nylons. The comonomer of the outer graft-copolymer layer is preferably selected from acrylic acid, methacrylic acid, acrylamides or ...

ELECTRIC BATTERIES

... 1456100 Separators ESB Inc 14 Feb 1974 [23 March 1973] 6792/74 Heading H1B A separator enabling an alkaline cell to have both high rate capability and long shelf-life comprises an organic substrate, e.g. " Cellophane " (Registered Trade Mark) to at least one side of which adheres a layer of a paste-like mixture consisting of a binder material, e.g. magnesium hydroxide and an inorganic material selected from titanium dioxide, zirconium dioxide, aluminium sulphate, aluminium chloride, aluminium oxide, barium chloride and chromium chloride dispersed in an inorganic medium, e.g. a solution of potassium hydroxide. The separator may be used in a button-type silveroxide, zinc cell (Figs. 1, 2, not shown), the paste layer being in direct contact with the silver oxide. In another embodiment, the paste mixture is sandwiched between two organic substrates (Fig. 4, not shown) and, in addition, a further layer of paste mixture may be provided on the other surface of one of the substrates so as to be ...

Process for the desalting of salt solutions by electrodialysis

Diaphragms consisting wholly or in part of ion-exchange material are made by the following methods: (1) 1 mol. of phenol is heated with 1.2 mols. of concentrated sulphuric acid at 100 DEG C. for two hours.; 5 c.c. of this reaction mixture are mixed with 5 c.c. of a 30 per cent formalin solution and heated to 70 DEG C. so that a clear cherry-red solution is obtained. The solution is poured into glass dishes which are covered and heated in a drying chamber at 90 DEG C. until gel formation and solidification takes place. The membranes produced may be afterwards sulphonated; (2) freshly distilled styrene is mixed in one case with 6 per cent and in other cases with 9 per cent and 12 per cent by weight respectively of divinyl benzene and polymerized after addition of 0.2 per cent by weight of benzoyl peroxide in a vessel placed in boiling water. The polymerisate sets as a rod which is cut into discs which are afterwards sulphonated; (3) 4.3 gms. of anhydrous polyethyleneimine is dissolved in ...

Improvements in method of making microporous material

In a method of making a microporous material by mixing a solid thermoplastic resinous material with silica hydrogel and a volatile organic solvent to form a dough, shaping the dough and removing the solvent without dehydration of the hydrogel, the solvent is removed by confining the shaped mass under super-atmospheric pressure in an enclosed chamber while sweeping an inert gas and steam continuously through the chamber. Specified resins are polyvinyl chloride, and vinyl chloride copolymers with vinyl acetate or vinylidene chloride, while fillers such as cotton floc may also be present. Specified solvents are cyclohexanone (preferred) and methyl cyclohexanone, chlorobenzene, nitrobenzene, tetrahydrofuran and mixtures of cyclohexone with minor amounts of methylethyl ketone or methylisopropyl ketone. The microporous material may be used for battery separators.

"improvements in inter-electrode separators for electric cells"

Unplasticised polyvinyl alcohol sheet is immersed, e.g. for 3 days, in a substantially anhydrous monohydroxy alcohol of not more than four carbon atoms, e.g. methyl or ethyl alcohol, and the sheet is then dried, e.g. in air. The resultant product, which may be an ether of the polyvinyl alcohol and the monohydroxy alcohol, is suitable for use as an inter-electrode separator for alkaline batteries. Specification 708,330, [Group XXXVI], is referred to.

An energy storage device and method thereof

SINTER-ABLE, PURIFY-HASTY POLYVINYL CHLORIDE - MOLDING MATERIAL

ELECTROLYTIC SOLUTION OF CARRYING POLYMER FILM AND SECONDARY BATTERY

PRISM TABLES ELECTRO-CHEMICAL CELL

SEPARATOR FOR CYLINDRICAL CELLS

SITUATION WITH SHIELDED FIBERS AND ELECTRO-CHEMICAL CELL

STRUCTURE AND PROCEDURE FOR THE PRODUCTION OF CONNECTION LAYERS FOR A LEFT ION POLYMER BATTERY

RECOMBINANTER BATTERY SEPARATOR

SUCCESSIVELY BIAXIAL ORIENTATIONS, POROUS ONE POLYPROPYLENE FOIL AND PROCEDURE OF YOUR PRODUCTION

Separators, batteries, systems, and methods for idle start stop vehicles

In accordance with at least selected embodiments or aspects, the present invention is directed to improved, unique, and/or high performance ISS lead acid battery separators, such as improved ISS flooded lead acid battery separators, ISS batteries including such separators, methods of production, and/or methods of use. The preferred ISS separator may include negative cross ribs and/or PIMS minerals. In accordance with more particular embodiments or examples, a PIMS mineral (preferably fish meal, a bio-mineral) is provided as at least a partial substitution for the silica filler component in a silica filled lead acid battery separator (preferably a polyethylene/silica separator formulation). In accordance with at least selected embodiments, the present invention is directed to new or improved batteries, separators, components, and/or compositions having heavy metal removal capabilities and/or methods of manufacture and/or methods of use thereof.

Polypropylene series resin porous film, battery separator and battery

Regarding a polypropylene series resin porous film having a polypropylene series resin as the main component, so as to exert excellent slipping ability and processability when used as a battery separator, a polypropylene series resin porous film fabricated in such a way that the coefficient of static friction against film is greater than the coefficient of static friction against SUS is proposed.

Separator film, its fabrication method, supercapacitor, battery and capacitor provided with said film

The invention relates to a separator film for a device used for storing electrical energy, the film being porous and oriented, and being obtained by stretching in a longitudinal direction and in a direction transverse to the longitudinal direction, the film containing a mixture comprising a polypropylene homopolymer, at least 10% of a copolymer obtained from monomers comprising at least propylene and ethylene, and at least one beta-nucleating agent. According to the invention, the ethylene content of the copolymer is ≧1% but <10% and a propylene content of the copolymer is ≧90% for a film thickness of ≧8 microns and ≦30 microns, corresponding to a specified space factor according to the IEC-60674-3-1 standard greater than or equal to 145% and a density of the biaxially stretched film greater than or equal to 0.18 g/cm 3 but less than or equal to 0.41 g/cm 3 .

Composite porous membrane, method for producing composite porous membrane and battery separator using same

A composite porous membrane including a porous membrane A formed of a polyolefin-based resin; and a porous membrane B containing a heat-resistant resin and laminated on the porous membrane A, wherein the porous membrane A satisfies formulas (A) to (C), the composite porous membrane satisfies formula (D), and the composite porous membrane satisfies formulas (F) and (F) wherein thickness of porous membrane A<10 μm formula (A); 0.01 μm≦average pore diameter of porous membrane A≦1.0 μm formula (B); 30% porosity of porous membrane A≦70% formula (C); thickness of entire composite porous membrane≦13 μm formula (a); peel strength at interface between porous membrane A and porous membrane B≧1.0 N/25 mm formula (E); 20≦Y−X≦100 formula CO and wherein X is a gas permeation resistance (seconds/100 ccAir) of porous membrane A, and Y is a gas permeation resistance (seconds/100 ccAir) of the composite porous membrane.

Compositions, layerings, electrodes and methods for making

There is a cell comprising an article comprising a hydrocarbon ionomer. The article may be any element in the cell, such as an interior wall, or a modification to an element, such as a film, a membrane, and a coating. The hydrocarbon ionomer is any polymer with ionic functionality, such as a polymeric (methacrylate) neutralized with lithium, and not containing halogen or halogen-containing substituents. The hydrocarbon ionomer may also be included in a composition within an element of the cell, such as a porous separator. The cell also comprises a positive electrode including sulfur compound, a negative electrode, a circuit coupling the positive electrode with the negative electrode, an electrolyte medium and an interior wall of the cell. In addition, there are methods of making the cell and methods of using the cell.

Polyolefin-Based Porous Film and Method for Producing the Same

A method for producing a polyolefin-based porous film includes an (A) step: a raw fabric forming step for forming a non-porous raw fabric from a polyolefin-based resin composition, a (B) step: an MD cold stretching step for cold stretching the non-porous raw fabric obtained in the (A) step at a temperature of −20° C. to (Tm−30)° C. (Tm is a melting point (° C.) of the non-porous raw fabric) in an extruding direction (MD) of the raw fabric to make the raw fabric porous; a (D) step: a TD cold stretching step for cold stretching a film processed in the (B) step in a direction (TD) perpendicular to the MD, and an (H) step: a thermal fixing step, in the above order.

Separator membranes for lithium ion batteries and related methods

A battery separator for a secondary lithium battery includes a microporous/porous membrane with a ceramic coating of one or more layers, a layer may include one or more particles and/or binders.

FUNCTIONALIZED POROUS MEMBRANES AND METHODS OF MANUFACTURE AND USE

A functionalized microporous, mesoporous, or nanoporous membrane, material, textile, composite, laminate, or the like, and/or a method of making or using such functionalized membranes. The functionalized porous membrane may be a functionalized microporous, mesoporous, or nanoporous membrane that has a functional molecule attached, such as a functional polymer, to the surface and/or internal fibrillar structure of the membrane. 133-. (canceled)34. A composite comprising: a microporous , nanoporous , or mesoporous membrane and an oleophobic coating or treatment on at least one side of the membrane , wherein the composite has a JIS Gurley of 200 seconds or less.35. The composite of claim 34 , wherein the JIS Gurley is 190 seconds or less.36. The composite of claim 34 , wherein the JIS Gurley is 185 seconds or less.37. The composite of claim 34 , wherein the JIS Gurley of the composite is about the same as the JIS Gurley of the membrane without any coating or treatment.38. The composite of claim 34 , wherein the coating or treatment is oleophobic and hydrophobic.39. The composite of claim 34 , wherein the coating or treatment comprises a fluorinated polymer.40. The composite of claim 39 , wherein the thickness of the coating or treatment is from 201 to 1440 angstroms.41. The composite of claim 34 , wherein the coating or treatment is provided using a plasma vapor deposition method42. The composite of claim 34 , wherein the coating or treatment is provided using a plasma vapor deposition method using a vacuum or atmospheric process.43. The composite of claim 42 , using a vacuum process.44. The composite of claim 42 , using an atmospheric process.45. The composite of claim 34 , having an oil repellency from 2-9 when measured by AATCC-118.46. The composite of claim 45 , having an oil repellency from 3-9.47. The composite of claim 45 , having an oil repellency from 5-9.48. The composite of claim 45 , having an oil repellency from 7-9.49. The composite of claim 45 , having ...

FUNCTIONAL SEPARATOR HAVING CATALYTIC SITES INTRODUCED THEREINTO, MANUFACTURING METHOD THEREFOR, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

In order to solve the problems caused by lithium polysulfide leaching from the positive electrode, disclosed is a catalytic site-introduced functional separator, a method of manufacturing the same, and a lithium secondary battery including the same, which can improve the capacity and lifetime of the battery by coating a material, which can act as a reduction catalyst for lithium polysulfide, on the surface of the separator. The catalytic site-introduced functional separator includes a base separator and a catalytic site-containing coating layer located on the surface of the base separator. 1. A catalytic site-introduced functional separator comprising:a base separator; anda coating layer on at least one surface of the base separator, wherein the coating layer comprises a catalytic site.2. The catalytic site-introduced functional separator according to claim 1 , wherein the catalytic site contains a continuous bond of transition metal-nitrogen-carbon.3. The catalytic site-introduced functional separator according to claim 1 , wherein the catalytic site is at least one selected from the group consisting of iron phthalocyanine (FePc) claim 1 , nickel phthalocyanine (NiPc) claim 1 , manganese phthalocyanine (MnPc) claim 1 , copper phthalocyanine (CuPc) claim 1 , and zinc phthalocyanine (ZnPc).4. The catalytic site-introduced functional separator according to claim 1 , wherein the catalytic site has a size of 0.1 nm to 10 nm.5. The catalytic site-introduced functional separator according to claim 1 , wherein the coating layer has a thickness of 0.1 μm to 20 μm.6. The catalytic site-introduced functional separator according to claim 1 , wherein a content of the coating layer is 1 μg/cm200 μg/cmrelative to a surface area of the base separator.7. The catalytic site-introduced functional separator according to claim 1 , wherein the coating layer further comprises conductive carbon.8. The catalytic site-introduced functional separator according to claim 7 , wherein the ...

Separator for lithium secondary battery and lithium secondary battery comprising same

The present invention relates to a separator for a lithium secondary battery and a lithium secondary battery including same, the separator including: a porous substrate; and a coating layer on at least one surface of the porous substrate. The coating layer includes a (meth)acrylic copolymer including a first structural unit derived from (meth)acrylamide, a second structural unit derived from (meth)acrylonitrile, and a third structural unit derived from (meth)acrylamido sulfonic acid, (meth)acrylamido sulfonic acid salt, or a combination thereof. The first structural unit is included in an amount of 55 mol % to 90 mol % based on 100 mol % of the (meth)acrylic copolymer and the second structural unit and third structural unit are each independently included in 5 mol % to 40 mol % based on 100 mol % of the (meth)acrylic copolymer. The (meth)acrylic copolymer has a weight average molecular weight of 200,000 to 700,000.

HIGH POWER, EXTENDED TEMPERATURE RANGE-CAPABLE, HIGHLY ABUSE OVERCHARGE AND DISCHARGE TOLERANT RECHARGEABLE BATTERY CELL AND PACK

Provided are electrochemical secondary cells that exhibit excellent abuse tolerance, deep discharge and overcharge conditions including at extreme temperatures and remain robust and possess excellent performance. Cells as provided herein include: a cathode a polycrystalline cathode electrochemically active material including the formula LiMO, wherein −0.9≤x≤0.3, −0.3≤y≤0.3, and wherein M includes Ni at 80 atomic percent or higher relative to total M, an anode including an anode electrochemically active material defined by an electrochemical redox potential of 400 mV or greater vs Li/Li. 1. An electrochemical cell comprising:{'sub': 1+x', '2+y, 'a cathode, the cathode comprising a polycrystalline cathode electrochemically active material comprising the formula LiMO, wherein −0.9≤x≤0.3, −0.3≤y≤0.3, and wherein M comprises Ni at 80 atomic percent or higher relative to total M, the cathode electrochemically active material comprising a non-uniform distribution of Co;'}an anode comprising an electrochemically active material with an electrochemical redox potential of at least 400 mV versus Li/Li+ and an anode current collector, the anode current collector comprising a metal other than copper.2. The electrochemical cell of whereina capacity ratio of anode to cathode is less than 1, andan area ratio of anode to cathode is less than or equal to 1.3. The electrochemical cell of wherein the electrochemical cell is characterized by a substantially unchanged voltage to capacity profile following puncture by a blunt 2 mm diameter stainless steel nail at a speed of 1 cm/sec.4. The electrochemical cell of wherein the electrochemical cell is characterized by substantially unchanged performance following 1000 cycles and subsequent storage for 33 months at 0 V condition.5. The electrochemical cell of wherein the electrochemical cell is characterized by a 10C capacity decline of less than 10% following cycling 1 claim 1 ,000 times between 2.43 V and 1.33 V in a 45° C. oven at 10C ...

PRINTING NANOPOROUS ULTRATHIN MEMBRANES FOR LITHIUM-SULFUR BATTERIES

A method of making a composite membrane for a lithium-sulfur (Li—S) battery is described. The method includes providing a polymeric separator membrane; synthesizing a graphene oxide (GO) dispersion; and printing the GO dispersion onto at least one surface of the polymeric separator membrane. The GO coating includes a GO layer. 1. A graphene oxide (GO) coating for a separator membrane of a lithium-sulfur (Li—S) battery , the GO coating comprising:{'sub': '3', 'a GO layer comprising a GO dispersion comprising a type of GO, the type of GO selected from the group comprising: Type I GO corresponding to original GO prepared by a modified Hummers method, Type I GO functionalized with a carboxyl group (COOH), Type II GO corresponding to GO with enlarged structural defects etched by a nitric acid (HNO) oxidation, and Type III GO with reduced lateral size synthesized by ultra-sonication.'}2. The GO coating of claim 1 , wherein the Type I GO functionalized with the carboxyl group is synthesized by mixing a 25 mL (milliliters) dispersion of original GO at a concentration of 2 mg/g (milligrams per gram) of deionized water with 5 mL of hydrogen bromide (HBr) at room temperature under vigorous stirring for 12 hours followed by adding 1 g of oxalic acid and stirring for 4 hours followed by washing with deionized water to remove the acid using centrifugation at 10 claim 1 ,000 revolutions per minute (RPM).3. The GO coating of claim 1 , wherein the Type II GO with enlarged structural defects is synthesized by diluting 2 mL of original GO to 1 mg/g with deionized water and mixing with a quantity of 70% concentrated nitric acid (HNO) in a sealed glass vial followed by sonicating in a bath sonicator at room temperature for 1 hour followed by washing with deionized water to remove the acid using centrifugation at 10 claim 1 ,000 revolutions per minute (RPM).4. The GO coating of claim 1 , wherein the Type III GO with reduced lateral size is synthesized by putting a 50 mL dispersion of ...

LITHIUM ENERGY STORAGE DEVICE WITH INTERNAL FUSE

Improvements in the structural components and physical characteristics of lithium battery articles are provided. Standard lithium ion batteries, for example, are prone to certain phenomena related to short circuiting and have experienced high temperature occurrences and ultimate firing as a result. Structural concerns with battery components have been found to contribute to such problems. Improvements provided herein include the utilization of thin metallized current collectors (aluminum and/or copper, as examples), high shrinkage rate materials, materials that become nonconductive upon exposure to high temperatures, and combinations thereof. Such improvements accord the ability to withstand certain imperfections (dendrites, unexpected electrical surges, etc.) within the target lithium battery through provision of ostensibly an internal fuse within the subject lithium batteries themselves that prevents undesirable high temperature results from short circuits. Battery articles and methods of use thereof including such improvements are also encompassed within this disclosure. 1. An energy storage device comprising a sealed energy storage device container housing an anode , a cathode , at least one polymeric or fabric separator present between said anode and said cathode , at least one current collector in contact with at least one of said anode and said cathode and not in contact with said at least one separator , and at least one liquid electrolyte; wherein said current collector comprises a conductive material coated on a polymeric material substrate , wherein said current collector exhibits the ability to carry a current density when operating normally along a current pathway horizontally along said current collector , wherein said current collector is unable to support a current through a point contact on the surface of the current collector , wherein said current collector comprises a metallized porous substrate , wherein said substrate exhibits a porosity of ...

RECHARGEABLE BATTERY WITH AQUEOUS-BASED ELECTROLYTE

The present invention provides a rechargeable lithium metal oxide-zinc battery system with an aqueous-based electrolyte including at least one positive electrode including a lithium compound, at least one negative electrode including zinc or a zinc compound, an aqueous-based electrolyte and an aqueous-based solvent. The aqueous-based electrolyte includes at least one zinc-based electroactive material and at least one lithium-based electroactive material. The combination of the electrodes and electrolyte composition suppresses electrode corrosion and gas generation at the negative electrode. 1. A rechargeable lithium metal oxide-zinc battery system with an aqueous-based electrolyte , comprising:at least one positive electrode including a lithium compound;at least one negative electrode including zinc or a zinc compound; at least one zinc-based electroactive material;', 'at least one lithium-based electroactive material;, 'an aqueous-based electrolyte comprisingan aqueous-based solvent;wherein a combination of the electrodes and electrolyte composition suppresses electrode corrosion and gas generation at the negative electrode.2. The rechargeable lithium metal oxide-zinc battery system of claim 1 , wherein the negative electrode including zinc or a zinc compound is selected from a metallic zinc foil or a coated film claim 1 , wherein the coated film comprises at least one zinc metallic powder or a zinc alloy metallic powder in an amount of approximately 80 to 95 weight percentage claim 1 , at least one conductive carbon in an amount of approximately 2 to 10 weight percentage and at least one binder in an amount of approximately 3 to 10 weight percentage.3. The rechargeable lithium metal oxide-zinc battery system of claim 1 , wherein the positive electrode including a lithium compound is a coated film claim 1 , the coated film comprising at least one lithium transition metal oxide material in an amount of approximately 85 to 95 weight percentage claim 1 , at least one ...

ENERGY STORAGE DEVICE HAVING A CURRENT COLLECTOR WITH INHERENT CURRENT LIMITATIONS

Improvements in the structural components and physical characteristics of lithium battery articles are provided. Standard lithium ion batteries, for example, are prone to certain phenomena related to short circuiting and have experienced high temperature occurrences and ultimate firing as a result. Structural concerns with battery components have been found to contribute to such problems. Improvements provided herein include the utilization of thin metallized current collectors (aluminum and/or copper, as examples), high shrinkage rate materials, materials that become nonconductive upon exposure to high temperatures, and combinations thereof. Such improvements accord the ability to withstand certain imperfections (dendrites, unexpected electrical surges, etc.) within the target lithium battery through provision of ostensibly an internal fuse within the subject lithium batteries themselves that prevents undesirable high temperature results from short circuits. Battery articles and methods of use thereof including such improvements are also encompassed within this disclosure. 1. An energy storage device comprising an anode , a cathode , at least one separator present interposed between said anode and said cathode , at least one liquid electrolyte , and at least one current collector in contact with at least one of said anode and said cathode , wherein said current collector has a top surface and a bottom surface; wherein said separator is of a polymeric , ceramic , or nonwoven structure; wherein said current collector is a nonconductive material having a conductive coating on both surfaces thereof; wherein said current collector exhibits the capability to carry a useful current density when operating normally along a current pathway horizontally along said current collector; and wherein said current collector , when present as a strip having dimensions of 4 cm by 1 cm and subjected to a current along the length thereof that is increased in 0.2 A increments , is unable ...

Membranes, calendered microporous membranes, battery separators, and related methods

Novel or improved microporous single or multilayer battery separator membranes, separators, batteries including such membranes or separators, methods of making such membranes, separators, and/or batteries, and/or methods of using such membranes, separators and/or batteries are provided. In accordance with at least certain embodiments, a multilayer dry process polyethylene/polypropylene/polyethylene microporous separator which is manufactured using the inventive process which includes machine direction stretching followed by transverse direction stretching and a subsequent calendering step as a means to reduce the thickness of the multilayer microporous membrane, to reduce the percent porosity of the multilayer microporous membrane in a controlled manner and/or to improve transverse direction tensile strength. In a very particular embodiment, the inventive process produces a thin multilayer microporous membrane that is easily coated with polymeric-ceramic coatings, has excellent mechanical strength properties due to its polypropylene layer or layers and a thermal shutdown function due to its polyethylene layer or layers. The ratio of the thickness of the polypropylene and polyethylene layers in the inventive multilayer microporous membrane can be tailored to balance mechanical strength and thermal shutdown properties.

THREE-DIMENSIONAL FOLDED BATTERY UNIT AND METHODS FOR MANUFACTURING THE SAME

A method includes, by a folding station: receiving an anode assembly including anode collectors connected by anode interconnects and coated with a separator; receiving a cathode assembly including cathode collectors connected by cathode interconnects; locating a first anode collector over a folding stage; locating a first cathode collector over the first anode collector to form a first battery cell between the first anode collector and the first cathode collector; folding a first anode interconnect to locate a second anode collector over the first cathode collector to form a second battery cell between the first cathode collector and the second anode collector; folding a first cathode interconnect to locate a second cathode collector over the second anode collector to form a third battery cell between the second anode collector and the second cathode collector; wetting the separator with solvated ions; and loading the anode and cathode assemblies into a battery housing. 1. A method for fabricating a battery unit comprising , by a folding station:receiving an anode assembly comprising a series of anode collectors connected by a set of anode interconnects;receiving a cathode assembly comprising a series of cathode collectors connected by a set of cathode interconnects;locating a first anode collector, in the series of anode collectors, over a folding stage, a first side of the first anode collector facing the folding stage, and a second side of the first anode collector coated with a first anode electrode and a first separator;locating a first cathode collector, in the series of cathode collectors, over the first anode collector, a first side of the first cathode collector coated with a first cathode electrode in contact with the first separator, and a second side of the first cathode collector coated with a second cathode electrode;folding the anode assembly along a first anode interconnect, in the set of anode interconnects and interposed between the first anode ...

Power storage device

To provide a highly reliable power storage device, to improve the security of a power storage device, and to suppress deterioration of a power storage device, a power storage device includes, inside an exterior material, a positive electrode, a negative electrode facing the positive electrode, an electrolyte solution between the positive electrode and the negative electrode, and an adsorbent. A separation body which is impermeable to the electrolyte solution and permeable to a gas is provided between the electrolyte solution and the adsorbent.

REDOX FLOW BATTERY SYSTEMS AND METHODS OF MANUFACTURE AND OPERATION AND REDUCTION OF METALLIC IMPURITIES

A redox flow battery system includes an anolyte having a first ionic species in solution; a catholyte having a second ionic species in solution, where the redox flow battery system is configured to reduce the first ionic species in the anolyte and oxidize the second ionic species in the catholyte during charging; a first electrode in contact with the anolyte, where the first electrode includes channels for collection of particles of reduced metallic impurities in the anolyte; a second electrode in contact with the catholyte; and a separator separating the anolyte from the catholyte. A method of reducing metallic impurities in an anolyte of a redox flow battery system includes reducing the metallic impurities in the anolyte; collecting particles of the reduced metallic impurities; and removing the collected particles using a cleaning solution.

LEAD-ACID BATTERY SEPARATORS, ELECTRODES, BATTERIES, AND METHODS OF MANUFACTURE AND USE THEREOF

New or improved battery separators for lead-acid batteries that include a carbon or mineral additive applied to the separator. In possibly preferred embodiments, the battery separator may include engineered carbon materials applied to the battery separator to modify sulfate crystal formation while decreasing the detrimental consequences of excessive gas evolution into the negative electrode itself. In one embodiment, a method of enhancing the lead-acid energy storage performance of a lead-acid battery may include delivering carbon to the negative active material surface of the battery separator where the carbon may effectively enhance charge acceptance and improve life cycle performance of a lead-acid battery. 124-. (canceled)25. A battery separator for a lead-acid battery comprising , a battery separator made of polyolefin or a battery separator made of polyolefin laminated to a glass layer , a polymer layer , a non-woven layer , or a woven layer whereinan additive having a surface area (BET) of from 10 to 5,000 sqm/g is provided on a surface of the battery separator that faces the positive electrode or on a surface of the battery separator that faces the negative electrode.26. The battery separator of claim 25 , wherein the additive has a surface area (BET) of from 500 to 3 claim 25 ,000 sqm/g.27. The battery separator of claim 25 , wherein the additive has a surface area (BET) of from 1 claim 25 ,500 to 3 claim 25 ,000 sqm/g.28. The battery separator of claim 25 , wherein the battery separator comprises a battery separator made of polyolefin.29. The battery separator of claim 25 , wherein the battery separator comprises a battery separator made of polyolefin laminated to a glass layer.30. The battery separator of claim 25 , wherein the battery separator comprises a battery separator made of polyolefin laminated to a non-woven.31. The battery separator of claim 25 , wherein the battery separator comprises a battery separator made of polyolefin laminated to a ...

Metal hydride battery with added hydrogen gas, oxygen gas or hydrogen peroxide

The invention relates to a starved metal hydride battery. The battery is characterized in that the battery further comprises added oxygen gas or hydrogen gas or hydrogen peroxide or a combination thereof in order to rebalance the electrodes and replenish the electrolyte by reactions with the electrode materials.

IN SITU FORMATION OF SOLID-STATE POLYMER ELECTROLYTES FOR BATTERIES

Provided are compositions including one or more cyclic ether(s), one or more salt(s), which may be one or more lithium salt(s), one or more sodium salt(s), or a combination thereof, and, optionally, one or more ring-opening polymerization initiator(s). The compositions may be used to form solid-state electrolytes. Also provided are methods for forming solid-state electrolytes using the compositions and devices comprising one or more composition(s) or one or more solid-state electrolyte(s) using the compositions. 1. A composition comprising:a cyclic ether;a lithium salt, a sodium salt, or a combination thereof at a concentration of 0.1 M to 5 M; andoptionally, a ring opening polymerization initiator.2. The composition of claim 1 , wherein the cyclic ether is chosen from 1 claim 1 ,3-dioxolane claim 1 , substituted 1 claim 1 ,3-dioxolanes claim 1 , 1 claim 1 ,4-dioxane claim 1 , substituted 1 claim 1 ,4-dioxanes claim 1 , 1 claim 1 ,3-dioxane claim 1 , substituted 1 claim 1 ,3-dioxanes claim 1 , 1 claim 1 ,3 claim 1 ,6-trioxocane claim 1 , substituted 1 claim 1 ,3 claim 1 ,6-trioxocane claim 1 , and combinations thereof.3. The composition of claim 1 , wherein the lithium salt is chosen from lithium triflate (LiOTf) claim 1 , lithium difluoro(oxalato)borate (LiBF(CO) LiDFOB) claim 1 , LiPF claim 1 , LiAsF claim 1 , LiBF claim 1 , LiBOB claim 1 , LiF claim 1 , LiCl claim 1 , LiBr claim 1 , LiI claim 1 , LiNO claim 1 , LiClO claim 1 , and combinations thereof.4. The composition of claim 1 , wherein the sodium salt is chosen from sodium triflate (NaOTf) claim 1 , NaPF claim 1 , NaNO claim 1 , NaClO claim 1 , NaAsF claim 1 , NaBF claim 1 , sodium bis(oxalate)borate (NaBOB) claim 1 , sodium difluoro(oxalato)borate (NaBF(CO) claim 1 , NaDFOB) claim 1 , NaF claim 1 , NaCl claim 1 , NaBr claim 1 , NaI claim 1 , and combinations thereof.5. The composition of claim 1 , wherein the lithium and/or sodium salt is a lithium ionic liquid and/or a sodium ionic liquid.6. The ...

POROUS INSULATOR, ELECTRODE, AND NONAQUEOUS POWER STORAGE ELEMENT

A porous insulator contains a porous structure, containing a polymer compound having communicating pores, and a solid having a melting point or glass transition temperature lower than that of the polymer compound. 16-. (canceled)7: An ink comprising:a polymerizable compound;a porogen capable of dissolving the polymerizable compound; anda solid,wherein, as a polymerization of the polymerizable compound progresses to produce a polymer, a phase of the porogen separates from a phase of the polymer,wherein the solid has a lower melting point or glass transition temperature than the polymer.8: The ink of claim 7 , wherein the polymerizable compound has two or more polymerizable groups.9: The ink of claim 7 , wherein the polymerizable compound comprises at least one member selected from the group consisting of acrylate resins claim 7 , methacylate resins claim 7 , urethane acrylate resins claim 7 , and vinyl ester resins.10: The ink of claim 7 , wherein the ink has a viscosity of from 1 to 150 mPa·s at 25 degrees C.11: The ink of claim 7 , wherein the ink has a viscosity of from 5 to 20 mPa·s at 25 degrees C.12: The ink of claim 7 , wherein a proportion of the polymerizable compound in the ink is from 10% to 70% by mass.13: The ink of claim 7 , wherein a proportion of the polymerizable compound in the ink is from 10% to 50% by mass.14: The ink of claim 7 , wherein a volume ratio between the polymerizable compound and the solid is from 1:1 to 1:15.15: The ink of claim 7 , wherein a volume ratio between the polymerizable compound and the solid is from 1:1 to 1:10.16: The ink of claim 7 , further comprising a polymerization initiator comprising a photopolymerization initiator.17: The ink of claim 7 , wherein the solid comprises a resin.18: A method for manufacturing a porous insulator claim 7 , comprising:{'claim-ref': {'@idref': 'CLM-00007', 'claim 7'}, 'applying the ink of onto a substrate;'}polymerizing the polymerizable compound; andremoving the porogen.19: The method of ...

Conducting polymers

There is described a process for forming a conformal film of conducting polymer onto one or more surfaces of a substrate by polymerising onto the one or more surfaces in a single step one or more conducting polymer precursors including one or more monomers in the presence of conductivity enhancing additives comprising one or more ionic liquids and one or more optional ionic dopants.

Laminated oxidation protected separator

A battery separator for a lead acid battery addresses the issues of acid stratification and separator oxidation arising from contaminants. The separator includes a microporous membrane and a diffusive mat affixed thereto. The diffusive mat has a three hour wick of: at least about 2.5 cm. The diffusive mat may be made of synthetic fibers, glass fibers, natural fibers, and combinations thereof. The diffusive mat may include silica. The separator may include a rubber.

MULTILAYER NANOPOROUS SEPARATOR

A separator for a lithium battery having (a) a porous polymeric layer, such as a polyethylene layer; and (b) a nanoporous inorganic particle/polymer layer on both sides of the polymeric layer, the nanoporous layer having an inorganic oxide and one or more polymers; the volume fraction of the polymers in the nanoporous layer is about 15% to about 50%, and the crystallite size of the inorganic oxide is 5 nm to 90 nm. 1. A separator for use in a lithium battery comprising:(a) a porous polymeric layer, which porous polymeric layer comprises a plurality of pores, and(b) 0.27 grams, or greater, per square meter of boehmite particles disposed within the plurality of pores of the porous polymeric layer.2. The separator of claim 1 , wherein the boehmite particles comprise hydrophobic boehmite particles.3. The separator of claim 2 , wherein the hydrophobic boehmite particles comprise a reaction product of an organic carbonate with boehmite.4. The separator of claim 3 , wherein the organic carbonate is ethylene carbonate.5. The separator of claim 3 , wherein the organic carbonate is fluoroethylene carbonate.6. The separator of claim 2 , wherein the hydrophobic boehmite particles comprise an organic polymer chemically reacted to at least a portion of the boehmite of said boehmite particles.7. The separator of claim 1 , wherein an average crystallite size of said boehmite particles disposed within the pores of said porous polymeric layer is between 5 nm and 25 nm.8. The separator of claim 1 , wherein an average crystallite size of said boehmite particles disposed within the pores of said porous polymeric layer is between 5 nm and 8 nm.9. The separator of claim 1 , wherein the separator further comprises a nanoporous layer adjacent at least one of two opposing sides of the porous polymeric layer claim 1 , wherein said nanoporous layer comprises boehmite particles and one or more organic polymer binders.10. The separator of claim 9 , wherein the boehmite particles of said ...

Separator for rechargeable lithium battery and rechargeable lithium battery including the same

A separator for a rechargeable lithium battery and a rechargeable lithium battery including the separator, the separator including a porous substrate; and a coating layer on at least one surface of the porous substrate, wherein the coating layer includes organic filler particles, fluorine organic binder particles, and (meth)acryl organic binder particles, an average particle diameter of the organic filler particles is equal to or greater than an average particle diameter of the fluorine organic binder particles, and the fluorine organic binder particles are coated on the porous substrate as a part of the coating layer in an amount of less than about 0.1 g/m 2 per surface.

LITHIUM BATTERY

Provided herein is a lithium battery including: a cathode including a cathode active material; an anode including an anode active material; an electrolyte between the cathode and the anode; and a separator impregnated with the electrolyte, wherein the separator includes cellulose nanofibers, and wherein a differential scanning calorimetry (DSC) thermogram of the separator evinces an exothermic reaction peak, represented by a differential value (dH/dT), at a temperature in a range of about 150° C. to about 200° C. 1. A lithium battery comprising:a cathode comprising a cathode active material;an anode comprising an anode active material;an electrolyte disposed between the cathode and the anode; anda separator impregnated with the electrolyte,wherein the separator comprises cellulose nanofibers, andwherein a differential scanning calorimetry (DSC) thermogram of the separator impregnated with the electrolyte does not show an exothermic reaction peak as represented by a differential value (dH/dT) within a temperature range of about 150° C. to about 200° C.,wherein the cellulose nanofibers comprise carboxyl group-containing microbial cellulose nanofibers, [{'br': None, 'sub': 1', '2, '—R—O—R—COOM\u2003\u2003'}, {'br': None, 'sub': '2', '—O—R—COOM,\u2003\u2003'}], 'wherein the carboxyl group of the carboxyl group-containing microbial cellulose nanofibers is bound to a carbon atom of a pyranose ring and is represented by Formula a or b below{'sub': 1', '2', '1', '10, 'wherein Rand Rare each independently a substituted or unsubstituted C-Calkylene group, and M is hydrogen or an alkali metal.'}2. The lithium battery of claim 1 , wherein the separator impregnated with the electrolyte has a crystalline index after exposure to heat at 170° C. for 3 hours under an inert atmosphere that is 50% or more of the crystalline index of the separator before the heat exposure claim 1 , wherein the crystalline index of the separator is expressed as an intensity ratio ...

Battery unit and secondary battery

According to an embodiment, a battery unit is provided. The battery unit includes an electrode structure and a substrate. The electrode structure includes a first electrode and an organic fiber film. The first electrode includes an active material-containing layer. The organic fiber film is provided on the active material-containing layer. The substrate is in contact with the organic fiber film. A coefficient of kinetic friction between the electrode structure and the substrate is 0.8 or less. Elongation amount S of the organic fiber film and thickness T of the first electrode satisfies the following equation (1): S≥π×T /4  (1)

Bag-shaped separator for electric storage device, thermal bonding method and thermal bonding device therefor, and electric storage device

The present invention provides a bag-shaped separator made of a separator material containing a material having the softening or melting point with a thermally bonded portion less susceptible to breakage, a thermal bonding method and a thermal bonding device therefor, and an electric storage device. The bag-shaped separator is formed with two sheets of a separator material with piled or a one sheet of the separator material with folded and piled. The separator material includes a polymer material having a melting or softening point and has one or more thermal bonding regions 30 at the edge of piled separator materials. The thermal bonding region 30 includes a fused region 31 where the separator material solidifies again after melting or softening, and a region 32 where the fusion rate of the polymer material decreases continuously from the fused region 31 toward a region 34 adjacent to the thermal bonding region 30.

LAMINATE FOR NON-AQUEOUS SECONDARY BATTERY, METHOD OF MANUFACTURING THE SAME, AND NON-AQUEOUS SECONDARY BATTERY

Disclosed is laminate for a non-aqueous secondary battery which may be prevented from undergoing blocking. The laminate comprises a non-porous substrate layer, and an adhesive layer formed on a surface on one side of the substrate layer, wherein a surface roughness of the surface on the one side of the substrate layer is greater than a surface roughness of a surface on the other side of the substrate layer. Preferably, the surface roughness of the surface on the one side of the substrate layer is 0.20 μm or more and 2.00 μm or less. Preferably, the surface roughness of the surface on the other side of the substrate layer is 0.01 μm or more and 0.15 μm or less. 1. A laminate for a non-aqueous secondary battery , comprising:a non-porous substrate layer; andan adhesive layer formed on a surface on one side of the substrate layer,wherein a surface roughness of the surface on the one side of the substrate layer is greater than a surface roughness of a surface on the other side of the substrate layer.2. The laminate for a non-aqueous secondary battery of claim 1 , whereinthe surface roughness of the surface on the one side of the substrate layer is 0.20 μm or more and 2.00 μm or less.3. The laminate for a non-aqueous secondary battery of claim 1 , whereinthe surface roughness of the surface on the other side of the substrate layer is 0.01 μm or more and 0.15 μm or less.4. The laminate for a non-aqueous secondary battery of claim 1 ,wherein the adhesive layer comprises organic particles, andthe organic particles are made of a polymer which comprises 1% by mass or more and 70% by mass or less of a nitrile group-containing monomer unit.5. The laminate for a non-aqueous secondary battery of claim 1 , whereinthe adhesive layer has a thickness of 0.01 μm or more and 10.0 μm or less.6. A non-aqueous secondary battery claim 1 , comprising:a structure wherein a positive electrode which includes a positive electrode current collector and a positive electrode mixed material layer ...

Separator for electrochemical device and method for manufacturing the same

A separator for an electrochemical device. The separator includes a porous coating layer formed from an acid, which is crosslinkable. As a result, the separator has increased heat resistance, safety and physical strength, shows improved peel strength between the porous substrate and the porous coating layer, and prevents separation of the inorganic particles from the porous coating layer. In addition, the separator shows an improved crosslinking degree so that the added amount of a crosslinkable binder resin may be reduced. Thus, it is possible to increase the added amount of a non-crosslinkable resin, inorganic particles, or both. Even when using a small amount of a crosslinkable binder resin, it is possible to provide both an effect of improving heat resistance and an effect of improving adhesion.

Microporous membranes, separators, lithium batteries, and related methods

In accordance with at least selected embodiments, novel or improved separator membranes, separators, batteries including such separators, methods of making such membranes and/or separators, and/or methods of using such membranes and/or separators are disclosed or provided. In accordance with at least certain embodiments, an ionized radiation treated microporous polyolefin, polyethylene (PE), copolymer, and/or polymer blend (e.g., a copolymer or blend comprising PE and another polymer, such as polypropylene (PP)) battery separator for a secondary or rechargeable lithium battery and/or a method of making an ionized radiation treated microporous battery separator is disclosed. The ionized radiation treatment may provide a microporous membrane or battery separator having a lower onset temperature of thermal shutdown, an extended thermal shutdown window, physical, dimensional, and/or mechanical integrity maintained at higher temperatures, improved battery safety performance in a rechargeable lithium battery, a treated polyethylene separator membrane with the high temperature performance of a polypropylene membrane or separator membrane, or polypropylene-based trilayer product (by way of example only, a trilayer membrane made of two polypropylene layers with a polyethylene layer in between), reduced thermal shrinkage resulting in both improved thermal stability and high temperature physical integrity, which maintains the separation of cathode and anode in a battery system and avoids thermal runaway in a rechargeable or secondary lithium battery, and/or combinations thereof.

Film from graft copolymer having a polypropylene backbone, and nanoporous polypropylene membrane

The invention relates to a film Film comprising a random graft copolymer having a polypropylene (PP) backbone and from 3 to 8 polyester segments covalently bonded to said backbone, wherein the number average molecular weight (Mn) of the polypropylene backbone ranges between 10.000 and 100.000 Dalton (as determined with HT-SEC in o-DCB at 150° C.), wherein the Mn of each polyester segment ranges between 5.000 and 25.000 Daltons, wherein the amount of PP ranges between 45 and 80 mol %, wherein the amount of polyester segments ranges between 55 and 20 mol %, wherein the film has a thickness in the range of 0.01-10 mm, wherein the polypropylene and polyester domains form independently continuous phases, and wherein the mol % is calculated relative to the total moles of monomer units present in the copolymer. The invention further relates to a nano porous PP membrane and its use.

Separation membrane for lithium secondary battery and lithium secondary battery including same

The present invention provides a separation membrane for a lithium secondary battery and a lithium secondary battery including the same, the separation membrane including: a substrate; a first coating layer containing a first organic binder which is able to be bonded to a gel polymer electrolyte through an epoxy ring-opening reaction; and a second coating layer containing a second organic binder, wherein the first organic binder has a functional group capable of ring-opening reaction with an epoxy group, or a combination thereof, and the gel polymer electrolyte is formed by polymerizing an oligomer having an epoxy group, a functional group capable of ring-opening reaction with an epoxy group, or a combination thereof.

Biodegradable electrochemical device

A biodegradable solid aqueous electrolyte composition, an electrochemical device incorporating the electrolyte composition, and methods for the same are provided. The electrolyte composition may include a rubber-like hydrogel including a copolymer and a salt. The copolymer may include at least two polycaprolactone chains coupled with a polymeric center block. The polymeric center block may include polyvinyl alcohol. The hydrogel may be biodegradable. The electrochemical device may include an anode, a cathode, and the electrolyte composition disposed between the anode and the cathode.

Nanofluid Contact Potential Difference Battery

A nanofluid contact potential difference cell includes a cathode with a lower work function and an anode with a higher work function separated by a nanometer-scale spaced inter-electrode gap containing a nanofluid with intermediate work function nanoparticle clusters. The cathode comprises a refractory layer and a thin film of electrosprayed dipole nanoparticle clusters partially covering a surface of the refractory layer. A thermal power source, placed in thermal contact with the cathode, to drive an electrical current through an electrical circuit connecting the cathode and anode with an external electrical load in between. A switch is configured to intermittently connect the anode and the cathode to maintain non-equilibrium between a first current from the cathode to the anode and a second current from the anode to the cathode. 1. An apparatus comprising:a first electrode having a first work function;a second electrode having a second work function that is different than the first work function, wherein the second electrode comprises a refractory layer and a thin film partially covering a surface of the refractory layer;an insulator between the first electrode and the second electrode; anda nanofluid between the first electrode and the second electrode, the nanofluid comprising a plurality of nanoparticles, wherein some of the nanoparticles have a different work function than others of the nanoparticles.2. The apparatus of claim 1 , wherein the thin film comprises electrosprayed dipole nanoparticle clusters.3. The apparatus of claim 1 , wherein the thin film comprises cesium oxide claim 1 , barium oxide claim 1 , calcium oxide claim 1 , strontium oxide claim 1 , or a combination thereof.4. The apparatus of claim 1 , wherein the refractory layer comprises tungsten claim 1 , rhenium claim 1 , osmium claim 1 , ruthenium claim 1 , tantalum claim 1 , iridium claim 1 , or a combination thereof.5. The apparatus of claim 1 , wherein the refractory layer comprises an ...

Multilayer porous film, separator for nonaqueous electrolyte secondary batteries, and nonaqueous electrolyte secondary battery

Provided is a multilayer porous film that has extremely high powder fall-off resistance and superior electrolyte solution adsorptivity and heat resistance and exhibits superior properties when used as a battery separator without decreasing the high air permeability of a porous film. The multilayer porous film includes a polyolefin-based resin porous film and a coating layer containing a filler and a resin binder on at least one surface of the polyolefin-based resin porous film. The amount of particles with particle sizes of less than 0.2 μm (D 0.2 ) in the filler is 1% or more, and the specific surface area of the filler is 5 m 2 /g or more and less than 10 m 2 /g. The multilayer porous film satisfies a particular condition.

POWER STORAGE DEVICE, METHOD FOR MANUFACTURING POWER STORAGE DEVICE, AND ELECTRONIC DEVICE

To provide a power storage device whose charge and discharge characteristics are unlikely to be degraded by heat treatment. To provide a power storage device that is highly safe against heat treatment. The power storage device includes a positive electrode, a negative electrode, a separator, an electrolytic solution, and an exterior body. The separator is located between the positive electrode and the negative electrode. The separator contains polyphenylene sulfide or solvent-spun regenerated cellulosic fiber. The electrolytic solution contains a solute and two or more kinds of solvents. The solute contains LiBETA. One of the solvents is propylene carbonate. 1. A method for manufacturing an electronic device , comprising the steps of: a positive electrode;', 'a negative electrode comprising graphite;', 'an exterior body surrounding the positive electrode and the negative electrode; and', 'an electrolyte included in a space surrounded by the exterior body, the electrolyte comprising a solvent component and lithium bis(pentafluoroethanesulfonyl)amide;, 'preparing a power storage device comprisingsetting the power storage device in a mold;pouring a rubber material in the mold after setting the power storage device; andperforming a heat treatment on the rubber material in the mold to cure the rubber material,wherein the solvent component comprises propylene carbonate and ethylene carbonate,wherein the propylene carbonate is the highest proportion in the solvent component except the ethylene carbonate, andthe exterior body comprises a laminate film.2. The method for manufacturing an electronic device according to claim 1 , wherein the heat treatment is performed at a temperature higher than or equal to 110° C. and lower than or equal to 190° C.3. The method for manufacturing an electronic device according to claim 1 ,wherein the heat treatment comprises a heating step performed at a first temperature for 10 minutes, andwherein the first temperature is higher than or ...

System and method for a stable high temperature secondary battery

A system for a high temperature, high energy density secondary battery that includes an electrolyte comprising an ionic liquid solvent, and electrolyte salts; a metallic anode; a cathode, compatible with the electrolyte and comprising an active material and a polyimide binder; and a separator component that separates the cathode and anode.

Surface modifying agents, modified materials and methods

The present invention relates to surface modifying agents for polymeric and/or textile materials, methods of making and/or using a surface modifying agent to modify and functionalize polymeric and/or textile materials, and/or methods of using surface modified or functionalized polymeric and textile materials, and/or products using or incorporating surface modified or functionalized polymeric and textile materials. For example, the surface modifying agent in precursor form can be styrene sulfonyl azide monomer, polymer or copolymer capable of undergoing a chemical reaction in the presence of heat or light to form one or more styrene sulfonated nitrene monomers, polymers or copolymers, which are capable of chemically reacting with the surface of a polymeric or textile material to endow a specific or desired chemical surface functionality to the surface of a polymeric or textile material. Furthermore, the present invention is possibly preferably directed to a surface modifying agent which comprises a styrene sulfonated nitrene monomer, polymer or polymer containing one or more nitrene functional groups, which are capable of chemically reacting via an insertion reaction into one or more carbon-hydrogen bonds on the surface of a polymeric or textile material in order to chemically attach a specific or desired chemical functionality to the surface of a polymeric or textile material.

Waterborne fluoropolymer composition

This invention relates to a waterborne fluoropolymer composition useful for the fabrication of Li-ion-Battery (LIB) electrodes. The fluoropolymer composition contains an organic carbonate compound, which is more environmentally friendly than other fugitive adhesion promoters currently used in waterborne fluoropolymer binders. An especially useful organic carbonate compound is ethylene carbonate (EC) and vinylene carbonate (VC), which are solids at room temperature, and other carbonates which are liquid at room temperature such as propylene carbonate, methyl carbonate and ethyl carbonate. The composition of the invention is low cost, environmentally friendly, safer, and has enhanced performance compared to current compositions.

BIAXIALLY ORIENTED MICROPOROUS MEMBRANE

A microporous membrane is made by a dry-stretch process and has substantially round shaped pores and a ratio of machine direction tensile strength to transverse direction tensile strength in the range of 0.5 to 5.0. The method of making the foregoing microporous membrane includes the steps of: extruding a polymer into a nonporous precursor, and biaxially stretching the nonporous precursor, the biaxial stretching including a machine direction stretching and a transverse direction stretching, the transverse direction stretching including a simultaneous controlled machine direction relax. 123-. (canceled)24. A method of making a microporous membrane comprising the steps of: 'biaxially stretching the nonporous precursor, the biaxial stretching including a machine direction stretching and a transverse direction stretching, the transverse direction stretching including a simultaneous controlled machine direction relax in the range of 5 to 80%;', 'extruding a polymer into a nonporous precursor, and'}wherein the total transverse direction stretch being in the range of 100 to 1200%.25. The method of wherein the polymer excludes any oils for subsequent removal to form pores or any pore-forming particulate to facilitate pore formation.26. The method of wherein the polymer being a semi-crystalline polymer.27. The method of wherein the polymer being selected from the group consisting of polyolefins claim 24 , fluorocarbons claim 24 , polyamides claim 24 , polyesters claim 24 , polyacetals claim 24 , polyoxymethylenes claim 24 , polysulfides claim 24 , polyvinyl alcohols claim 24 , co-polymers thereof claim 24 , and combinations thereof.28. The method of further comprising the step of: annealing the nonporous precursor after extruding and before biaxially stretching.29. The method of wherein annealing being conducted at a temperature in the range of Tm-80° C. to Tm-10° C.30. The method of claim 24 , wherein machine direction stretching being conducted hot or cold or both.31. The ...

Compositions, layerings, electrodes and methods for making

There is a cell comprising an article comprising a hydrocarbon ionomer. The article may be any element in the cell, such as an interior wall, or a modification to an element, such as a film, a membrane, and a coating. The hydrocarbon ionomer is any polymer with ionic functionality, and not containing halogen or halogen-containing substituents. The hydrocarbon ionomer may also be included in a composition within an element of the cell, such as a porous separator. The cell also comprises a positive electrode including sulfur compound, a negative electrode, a circuit coupling the positive electrode with the negative electrode, an electrolyte medium and an interior wall of the cell. In addition, there are methods of making the cell and methods of using the cell.

ELECTRODE PROTECTION USING A COMPOSITE COMPRISING AN ELECTROLYTE-INHIBITING ION CONDUCTOR

Composite structures including an ion-conducting material and a polymeric material (e.g., a separator) to protect electrodes are generally described. The ion-conducting material may be in the form of a layer that is bonded to a polymeric separator. The ion-conducting material may comprise a lithium oxysulfide having a lithium-ion conductivity of at least at least 10S/cm. 1. An electrochemical cell , comprising:a first electrode comprising lithium;a second electrode;a separator arranged between said first electrode and said second electrode; anda solid ion conductor contacting and/or bonded to the separator,wherein said solid ion conductor comprises a lithium oxysulfide.2. An electrochemical cell , comprising:a first electrode comprising lithium;a second electrode;a separator arranged between said first electrode and said second electrode, wherein the separator comprises pores; anda solid ion conductor contacting and/or bonded to the separator;wherein said solid ion conductor is substantially formed of a non-polymeric material, wherein the solid ion conductor comprises a lithium oxysulfide, wherein the solid ion conductor is present in the form of a layer, wherein the layer coats the separator, and wherein a thickness of the layer is at least 1.1 times an average pore size of the separator and less than or equal to 20 times the average pore size of the separator.3. An electrochemical cell , comprising:a first electrode comprising lithium;a second electrode;a separator arranged between said first electrode and said second electrode; anda solid ion conductor contacting and/or bonded to the separator;wherein said solid ion conductor is substantially formed of a non-polymeric material, wherein the solid ion conductor comprises a lithium oxysulfide, wherein the solid ion conductor is present in the form of a layer, and wherein an RMS surface roughness of the layer is between 0.5 nm and 1 micron.4. The electrochemical cell of claim 1 , wherein the separator comprises pores ...

BATTERY SEPARATORS WITH IMPROVED CONDUCTANCE, IMPROVED BATTERIES, SYSTEMS, AND RELATED METHODS

In accordance with at least selected embodiments, the present disclosure or invention is directed to improved battery separators, high conductance separators, improved lead-acid batteries, such as flooded lead-acid batteries, high conductance batteries, improved systems, and/or, improved vehicles including such batteries, and/or methods of manufacture or use of such separators or batteries, and/or combinations thereof. In accordance with at least certain embodiments, the present disclosure or invention is directed to improved lead acid batteries incorporating the improved separators and which exhibit increased conductance. Particular, non-limiting examples may include lead acid battery separators having structure or features designed to improve conductance, lower ER, lower water loss, and the like. 124-. (canceled)25. A lead acid battery comprising:a polyolefin microporous membrane comprising polyethylene, preferably, ultrahigh molecular weight polyethylene, a particle-like filler, and a processing plasticizer; wherein the particle-like filler is present in an amount of 40% or more by weight; and wherein the polyethylene comprises polymer in a shish-kebab formation comprising a plurality of extended chain crystals (the shish formations) and a plurality of folded chain crystals (the kebab formations) and wherein the average repetition or periodicity of the kebab formations is from 1 nm to 150 nm, preferably less than 120 nm; andhaving a shelf life estimated cold cranking amps loss as compared to an initial value of less than approximately 9%.26. The lead acid battery according to claim 25 , wherein said shelf life estimated cold cranking amps loss as compared to an initial value of less than approximately 8%.27. The lead acid battery according to claim 25 , wherein said shelf life estimated cold cranking amps loss as compared to an initial value of less than approximately 7%.28. The lead acid battery according to claim 25 , wherein said shelf life estimated cold ...

MULTILAYER SEPARATOR AND METHODS OF MANUFACTURE AND USE

A multilayer deep cycle battery separator comprising at least two layers of an automotive-sized separator bonded or welded together. The automotive-sized separator layers include a backweb having a backweb thickness between 6 to 10 mils, an overall thickness of between 25 to 65 mils, and a rib base width of between 20 to 35 mils. The automotive-sized separator layers also have an extraction time of between 45 to 75 seconds, thereby providing an overall extraction time of less than a standard deep cycle battery separator. 1. A multilayer deep cycle battery separator.2. The multilayer deep cycle battery separator of comprising at least two layers of an automotive-sized battery separator connected or bonded or welded together.3. The multilayer deep cycle battery separator of comprising two layers of automotive-sized separator.4. The multilayer deep cycle battery separator of wherein said automotive-sized battery separator layers comprise:a backweb having a backweb thickness of between 5 and 10 mils, an overall thickness of between 25 and 65 mils, anda rib having a rib base width of between 20 and 35 mils.5. The multilayer deep cycle battery separator of wherein said automotive-sized battery separator layers have an extraction time of between 45 to 75 seconds.6. The multilayer deep cycle battery separator of wherein said automotive-sized battery separator layers are selected from the group consisting of: a PE separator; a PVC separator; a rubber separator; a phenolic resin separator; a PP separator; a cellulosic materials separator; and combinations thereof.7. The multilayer deep cycle battery separator of wherein said automotive-sized battery separator layers comprise at least one layer of PE separator.8. The multilayer deep cycle battery separator of wherein said automotive-sized battery separator layers comprise two layers of PE separators.9. The multilayer deep cycle battery separator of wherein said layers of automotive-sized separator are welded together.10. The ...

ANODELESS LITHIUM METAL BATTERY AND METHOD OF MANUFACTURING THE SAME

An anodeless lithium metal battery includes: a cathode including a cathode current collector and a cathode active material layer on the cathode current collector; an anode current collector on the cathode; a composite electrolyte between the cathode and the anode current collector, wherein the composite electrolyte, wherein the composite electrolyte includes a first liquid electrolyte and a metal comprising at least one of a lithium metal and a lithium metal alloy; and a liquid-impermeable ion-conductive composite membrane between the cathode and the composite electrolyte. 1. An anodeless lithium metal battery comprising:a cathode comprising a cathode current collector and a cathode active material layer comprising a cathode active material on the cathode current collector;an anode current collector; 'a first electrolyte, and', 'a composite electrolyte between the cathode and the anode current collector, wherein the composite electrolyte comprises'}a metal comprising at least one of lithium metal or a first lithium metal alloy;an interconnected network structure comprising lithium metal or a second lithium metal alloy on a surface of the anode current collector, wherein the first lithium metal alloy and the second lithium metal alloy are the same or different anda liquid-impermeable ion-conductive composite membrane between the cathode and the composite electrolyte, wherein the liquid-impermeable ion-conductive composite membrane comprises at least one of a solid ionic conductor or a composite comprising a solid ionic conductor and a non-ionic conductor, andwherein the anode current collector is a mesh current collector.2. The anodeless lithium metal battery of claim 1 , wherein the interconnected structure is a product of charging the anodeless lithium metal battery.3. The anodeless lithium metal battery of claim 1 , wherein the liquid-impermeable ion-conductive composite membrane is configured to physically and chemically separate the cathode and the composite ...

Multilayer microporous separators for lithium ion secondary batteries and related methods

An improved multilayer laminated microporous battery separator for a lithium ion secondary battery, and/or a method of making or using this separator is provided. The preferred inventive dry process separator is a tri-layer laminated Polypropylene/Polyethylene/Polypropylene microporous membrane with a thickness range of 12 μm to 30 μm having improved puncture strength and low electrical resistance for improved cycling and charge performance in a lithium ion battery. In addition, the preferred inventive separator's or membrane's low Electrical Resistance and high porosity provides superior charge rate performance in a lithium battery for high power applications.

MEMBRANE ELECTRODE ASSEMBLIES FOR ION CONCENTRATION GRADIENT DEVICES

A device for enabling controlled movement of ions between a first ion-containing fluid and second ion-containing fluid comprises at least one cationic exchange membrane positioned between the first and second ion-containing fluids, and at least one anionic exchange membrane in parallel with the at least one cationic exchange membrane positioned between the first and second ion-containing fluids. The one or more of the at least one cationic exchange membrane and the at least one anionic exchange membrane is a membrane electrode assembly comprising an ion exchange membrane, and one or more permeable electrodes embedded within the ionic exchange membrane. The number of cationic exchange membranes and the number of anionic exchange membranes is the same, and the ions move through the membrane electrode assembly in response to a variable capacitive charge. 1. A device for enabling controlled movement of ions between a first ion-containing fluid and a second ion-containing fluid comprising:at least one cationic exchange membrane positioned between the first and second ion-containing fluids;at least one anionic exchange membrane in parallel with the at least one cationic exchange membrane, and positioned between the first and second ion-containing fluids; an ion exchange membrane; and', 'one or more permeable electrodes embedded within the ionic exchange membrane;, 'wherein one or more of the at least one cationic exchange membrane and the at least one anionic exchange membrane is a membrane electrode assembly comprisinga charger connected to the at least one or more permeable electrodes, wherein the charger supplies the one or more permeable electrodes with a variable capacitive charge;wherein the number of cationic exchange membranes and the number of anionic exchange membranes is the same; andwherein ions move through the membrane electrode assembly in response to the variable capacitive charge.2. The device of claim 1 , further comprising a grounded switch connected to ...

SEPARATORS FOR ELECTROCHEMICAL CELLS

Provided are separators for use in an electrochemical cell comprising (a) an inorganic oxide and (b) an organic polymer, wherein the inorganic oxide comprises organic substituents. Also provided are electrochemical cells comprising such separators. 120-. (canceled)21. An electrochemical cell comprising:an anode,a cathode, and [ a hydrated aluminum oxide, and', 'an organic polymer that is covalently bonded to at least a portion of said hydrated aluminum oxide, and, '(a) a separator comprising, '(b) an electrolyte selected from the group consisting of liquid organic electrolytes, gel polymer electrolytes, and solid polymer electrolytes., 'an electrolyte element interposed between the anode and the cathode, the electrolyte element comprising22. The electrochemical cell of claim 21 , wherein the separator is laminated to the anode.23. The electrochemical cell of claim 21 , wherein the separator is laminated to the cathode.24. The electrochemical cell of claim 21 , wherein said hydrated aluminum oxide comprises one or more of boehmite and an organically-modified aluminum oxide.25. The electrochemical cell of claim 24 , wherein said hydrated aluminum oxide further comprises organic substituents.26. The electrochemical cell of claim 21 , wherein said hydrated aluminum oxide is of the formula AlO.xHO claim 21 , wherein x is in a range of 0.8 to 1.5.27. The electrochemical cell of claim 26 , wherein said organic polymer is a polyethylene oxide.28. The electrochemical cell of claim 26 , wherein said hydrated aluminum oxide is of the formula AlO.xHO claim 26 , wherein x is in a range of 0.8 to less than 1.0.29. The electrochemical cell of claim 26 , wherein said hydrated aluminum oxide is of the formula AlO.xHO claim 26 , wherein x is in a range of 1.0 to 1.5.30. The electrochemical cell of claim 21 , wherein the separator further comprises a reaction product of an organic carbonate.31. The electrochemical cell of claim 30 , wherein the organic carbonate is ethylene carbonate. ...

ACID BATTERY PASTING CARRIER

A pasting carrier for a lead-acid battery. The pasting carrier includes a nonwoven fiber mat having a thickness between 5 and 50 mils, the nonwoven fiber mat being composed of a plurality of entangled glass microfibers. 1. A method of manufacturing a lead-acid pasting carrier , the method comprising:dispersing glass microfibers in an aqueous solution to form an aqueous slurry with the glass microfibers;distributing the aqueous slurry onto a screen and removing a liquid from the aqueous slurry to form a nonwoven fiber mat comprising entangled glass microfibers;applying a binder to the entangled glass microfibers to bond the glass microfibers together, wherein the binder may be applied to the glass microfibers by mixing in the aqueous slurry or applied to the glass microfibers after removing the liquid from the aqueous slurry; anddrying the entangled glass microfibers to form the nonwoven fiber mat having a thickness between 5 and 50 mils;wherein the wettability of the lead acid pasting carrier enables the pasting carrier to support a conductive material by absorbing a portion of the conductive material while preventing the conductive material from passing through the lead-acid pasting carrier.2. The method of claim 1 , comprising dispersing a polymer component within the aqueous slurry of the glass microfibers so that the polymer component is homogenously or uniformly distributed throughout the aqueous slurry.3. The method of claim 2 , wherein the polymer component is a non-fibrous polymer componet.4. The method of claim 3 , wherein the non-fibrous polymer component is homogenously dispersed across a thickness of the nonwoven fiber mat.5. The method of claim 2 , wherein the liquid is removed at a sufficient rate in order to ensure uniform or homogenous dispersion of the glass microfiber and polymer components.6. The method of claim 1 , wherein dispersing the glass microfibers in the aqueous solution comprises dispersing between 30 and 60 weight percentage of smaller ...

Composition for non-aqueous secondary battery functional layer, functional layer-equipped substrate for non-aqueous secondary battery, method for producing laminate for non-aqueous secondary battery, and non-aqueous secondary battery

Provided is a composition for a non-aqueous secondary battery functional layer capable of forming a functional layer for a non-aqueous secondary battery that can provide a battery component with high blocking resistance and cause excellent adhesiveness to be displayed before and after immersion in electrolysis solution. The composition contains a particulate polymer having a core-shell structure including a core portion and a shell portion partially covering an outer surface thereof. The core portion is formed by a polymer having a glass transition temperature of −50° C. to 60° C. and a degree of swelling in electrolysis solution of at least a factor of 5 and no greater than a factor of 30. The shell portion is formed by a polymer having a glass transition temperature of 50° C. to 200° C. and a degree of swelling in electrolysis solution of greater than a factor of 1 and no greater than a factor of 4.

SEPARATOR FOR LITHIUM SECONDARY BATTERY, MANUFACTURING METHOD THEREFOR, AND LITHIUM SECONDARY BATTERY INCLUDING SAME

This application relates to a separator for a lithium secondary battery, a method for manufacturing a separator for a lithium secondary battery, and a lithium secondary battery including same. The separator includes a porous substrate, a heat resistant layer positioned on at least one surface of the porous substrate and including inorganic particles, and a first adhesive layer positioned on the heat resistant layer and including a first organic polymer. The heat resistant layer includes the inorganic particles of 90 wt % to 99 wt % on the basis of total weight, the thickness of the heat resistant layer is 3.5 μm to 7 μm, and the thickness of the first adhesive layer is 0.5 μm to 3.0 μm. 1. A separator for a lithium secondary battery , comprising:a porous substrate;a heat resistant layer disposed on at least one surface of the porous substrate, and including inorganic particles; anda first adhesive layer disposed on the heat resistant layer and including a first organic polymer,wherein the heat resistant layer includes 90 wt % to 99 wt % of the inorganic particles relative to a total weight of the heat resistant layer,wherein a thickness of the heat resistant layer is 3.5 μm to 7 μm, andwherein a thickness of the first adhesive layer is 0.5 μm to 3.0 μm.2. The separator of claim 1 , wherein the first adhesive layer has a surface roughness of 0.1 μm to 1.0 μm.3. The separator of claim 1 , wherein:a surface roughness of an interface formed between the heat resistant layer and the first adhesive layer is 1.0 μm to 4.0 μm, anda surface roughness of one surface of the first adhesive layer exposed to the outside is 0.1 μm to 1.0 μm.4. The separator of claim 1 , wherein the heat resistant layer further comprises a water-soluble polymer binder.5. The separator of claim 4 , wherein the water-soluble polymer binder comprises an acryl-based binder claim 4 , a cellulose-based binder claim 4 , a vinylidenefluoride-based binder claim 4 , or a combination thereof.6. The separator ...

Separator and energy storage device

A separator includes a porous substrate, and a porous layer arranged on a surface of the porous substrate. The porous layer comprises inorganic particles and a binder, and a ratio of Dv90 of the inorganic particles to the thickness of the porous layer is in a range from 0.3 to 3.0. Excellent adhesion exists between the separator and the electrode according to the present application, which ensures that the energy storage device has good safety performance. Moreover, the rate performance and cycle performance of the energy storage device can be greatly improved due to the existence of inorganic particles in the separator.

COATED LEAD ACID BATTERY ELECTRODE PLATES; METHOD FOR MAKING COATED ELECTRODE PLATES AND LEAD ACID BATTERIES CONTAINING COATED ELECTRODE PLATES

Disclosed are electrode plates for a lead acid battery. The electrode plates are formed of an electrode plate having a face, the electrode plate comprising a lead or lead alloy grid coated with an active material and the electrode plates having a porous, non-woven mat comprised of polymer fibers coating on the face of the electrode plate, as well as a method for making the coated electrode plates and lead acid batteries containing the coated electrode plates. 1. An electrode plate for a lead acid battery having a coating comprising:an electrode plate for a lead acid battery having a face, the electrode plate comprising a lead or lead alloy grid coated with an active material anda porous, non-woven mat comprised of polymer fibers coating on the face of the electrode plate.2. The electrode plate of wherein the lead alloy is a lead-antimony claim 1 , a lead-calcium or a lead-tin grid.3. The electrode plate of wherein the alloy is a lead-antimony alloy.4. The electrode plate of wherein the active material is a lead oxide active material.5. The electrode plate of wherein the polymer fibers have a fiber diameter of from about 5 nm and about 30 μm.6. The electrode plate of wherein the polymer fibers have a fiber diameter of from 500 nm to about 1 μm.7. The electrode plate of wherein the polymer fiber coating has a surface area of from 5 m2/g to about 500 m2/g.8. The electrode plate of wherein the polymer fiber coating has a surface area of from 50 m2/g to about 200 m2/g.9. The electrode plate of wherein the polymer fiber coating has a porosity of from 30% to about 90%.10. The electrode plate of wherein the polymer fiber coating has a porosity of from about 50% to about 70%.11. The electrode plate of wherein the polymer fiber coating has a thickness of from about 2 μm to about 2 mm.12. The electrode plate of wherein the polymer fiber coating has a thickness of from about 5 μm to about 500 μm13. The electrode plate of wherein the polymer fiber coating has a thickness of from ...

Battery

A battery is provided. The battery includes a positive electrode, a negative electrode, and a solid electrolyte membrane. The positive electrode includes a positive active layer. The negative electrode includes a negative active layer and a modified layer, wherein the modified layer is disposed on the negative active layer. The modified layer includes a metal fluoride and a lithium-containing compound. The solid electrolyte membrane includes a first porous layer, an electrolyte layer, and a second porous layer, wherein the electrolyte layer is disposed between the first porous layer and the second porous layer.

SEPARATOR FOR SECONDARY BATTERIES WITH ENHANCED STABILITY AND METHOD OF MANUFACTURING THE SAME

Disclosed are a separator for secondary batteries with enhanced stability and a method of manufacturing the separator. The separator can prevent self-discharge which may occur when a porous non-woven fabric material is used for a separator; can perform a shutdown function at a high temperature of 200° C. or less; and can avoid even under harsh conditions of high temperatures, deterioration in stability caused by internal short-circuit of positive and negative electrodes. In particular, the separator for secondary batteries of the present invention includes a porous non-woven fabric material impregnated with a baroplastic polymer powder and pores of the porous non-woven fabric material are filled with the baroplastic polymer powder by pressing an assembly of the secondary battery. 2. The separator according to claim 1 , wherein the pores of the porous non-woven fabric material are filled with the baroplastic polymer powder.3. The separator according to claim 1 , wherein the porous non-woven fabric material comprises one or more selected from the group consisting of polyolefin claim 1 , polyimide claim 1 , aramid claim 1 , cellulose claim 1 , polyacrylonitrile claim 1 , polyester and polyamide.4. The separator according to claim 1 , wherein the pores of the porous non-woven fabric material have a size of about 1 μm to 100 μm and the porous non-woven fabric material has porosity of about 20% to 70%.5. The separator according to claim 1 , wherein the baroplastic polymer powder comprises one or more selected from the group consisting of polystyrene claim 1 , polyisoprene claim 1 , poly(n-butyl acrylate) claim 1 , 2-ethylhexyl acrylate claim 1 , poly(pentyl methacrylate) claim 1 , poly(butyl methacrylate) claim 1 , polycarbonate claim 1 , poly(methyl methacrylate) claim 1 , poly(vinyl chloride) claim 1 , poly(ethyl acrylate) claim 1 , poly(ethyl methacrylate) claim 1 , and polybutadiene.6. The separator according to claim 1 , wherein the baroplastic polymer powder has an ...

BATTERY CELL AND EXTERIOR PACKAGING MATERIAL

A method of forming a package is provided and includes providing two laminate edge portions of the package, each of which includes a foil layer between first and second resin layers; and welding together the respective first resin layers at a first position spaced apart from the edges while not welding the respective first resin layers at the edges, wherein the edge portions include edges from which electrode terminals extend such that portions of the electrode terminals are exposed beyond the edges, and wherein the edge portions are between a sealing portion and exposed portions of positive and negative electrode terminals. 1. (canceled)2. A battery comprising:a cell; andan exterior packaging material enclosing at least a portion of the cell; whereinthe exterior packaging material includes an exterior layer, a metal layer, an interior layer, a first portion, and a second portion; and{'b': '1', 'claim-text': {'br': None, 'i': t×', 'p×', 't', 't×, '2−2+5<1<2−5 (μm).'}, 'when a thickness of the interior layer in the first portion is p, a thickness of the first portion is t, and a thickness of the second portion is t, a following equation is satisfied3. The battery according to claim 2 , wherein the first portion is non-welded and the second portion is welded.4. The battery according to claim 3 , wherein an edge portion of the exterior packaging material is a non-compressed portion that has not been direct-welded.5. The battery according to claim 4 , wherein a thickness of a welded layer defined by the interior layer in the second portion increases towards an end portion of the welded layer.6. The battery according to claim 5 , wherein the thickness of the welded layer in the second portion is greater than 5 μm.7. The battery according to claim 6 , further comprising an electrode terminal coated with a sealant; andthe electrode terminal and the sealant extend outside the non-compressed portion of the exterior packaging material that has not been direct-welded.8. The ...

SEPARATORS, BATTERIES, SYSTEMS, VEHICLES, AND RELATED METHODS

Improved battery separators, base films or membranes, batteries, cells, devices, systems, vehicles, and/or methods of making and/or using such separators, films or membranes, batteries, cells, devices, systems, vehicles, and/or methods of enhancing battery or cell charge rates, charge capacity, and/or discharge rates, and/or methods of improving batteries, systems including such batteries, vehicles including such batteries and/or systems, and/or the like; biaxially oriented porous membranes, composites including biaxially oriented porous membranes, biaxially oriented microporous membranes, biaxially oriented macroporous membranes, battery separators with improved charge capacities and the related methods and methods of manufacture, methods of use, and the like; flat sheet membranes, liquid retention media; dry process separators; biaxially stretched separators; dry process biaxially stretched separators having a thickness range between about 5 μm and 50 μm, preferably between about 10 μm and 25 μm, having improved strength, high porosity, and unexpectedly and/or surprisingly high charge capacity, such as, for example, high 10 C rate charge capacity; separators or membranes with high charge capacity and high porosity, excellent charge rate and/or charge capacity performance in a rechargeable and/or secondary lithium battery, such as a lithium ion battery, for high power and/or high energy applications, cells, devices, systems, and/or vehicles, and/or the like; single or multiple ply or layer separators, monolayer separators, trilayer separators, composite separators, laminated separators, co-extruded separators, coated separators, 1 C or higher separators, at least 1 C separators, batteries, cells, systems, devices, vehicles, and/or the like; improved microporous battery separators for secondary lithium batteries, improved microporous battery separators with enhanced or high charge (C) rates, discharge (C) rates, and/or enhanced or high charge capacities in or for ...

RECHARGEABLE LITHIUM BATTERY

Disclosed is a rechargeable lithium battery including a positive electrode including a positive active material; a negative electrode including a negative active material; an electrolyte solution including a lithium salt and a non-aqueous organic solvent; and a separator between the positive and the negative electrodes, the separator including a porous substrate and a coating layer positioned on at least one side of the porous substrate. The negative active material includes a Si-based material; the non-aqueous organic solvent includes cyclic carbonate including ethylene carbonate, propylene carbonate, or combinations thereof, the cyclic carbonate being included in an amount of about 20 volume % to about 60 volume % based on the total amount of the non-aqueous organic solvent; and the coating layer includes a fluorine-based polymer, an inorganic compound, or combinations thereof. The rechargeable lithium battery has improved cycle-life and high temperature storage characteristics. 1. A rechargeable lithium battery comprising:{'sub': a', 'b', 'c', 'd', '2, 'a positive electrode comprising a positive active material comprising nickel and represented by LiNiEGO(0.90≤a≤1.8, 0≤b≤0.9, 0≤c≤0.5 and 0.001≤d≤0.1, E is Co; G is Al, Cr, Mn, Fe, Mg, La, Ce, Sr, V, or combinations thereof);'}a negative electrode comprising a negative active material comprising a Si-based material and a carbon-based material; 'the non-aqueous organic solvent comprising a cyclic carbonate and', 'a lithium salt, a non-aqueous organic solvent, and an additive'}, 'an electrolyte solution comprising 'the additive comprising at least one selected from fluoroethylene carbonate, propane sultone, succinonitrile, adiponitrile, or combinations thereof.', 'a linear carbonate, the linear carbonate comprising ethylmethyl carbonate and dimethyl carbonate; and'}a separator between the positive electrode and the negative electrode, the separator comprising a porous substrate and a coating layer positioned on at ...

Composite separator for secondary battery and lithium secondary battery including the same

Provided are a composite separator for a secondary battery including: a porous substrate; and a coating layer, formed on the porous substrate, by thermally curing aqueous slurry including inorganic particles, first binder particles, a second binder, and a thermal curing agent, wherein the first binder particles contain a copolymer of a monomer mixture including an acrylamide-based monomer, a vinyl cyanide-based monomer, an acrylic monomer having a carboxyl group, and an acrylic monomer having a hydroxyl group, and a lithium secondary battery including the same.

COMPOSITE ANODE ACTIVE MATERIAL, METHOD OF PREPARING THE SAME, AND LITHIUM SECONDARY BATTERY INCLUDING ANODE INCLUDING COMPOSITE ANODE ACTIVE MATERIAL

Provided herein is a composite anode active material including: a porous carbon structure; a first coating layer on the porous carbon structure and including a non-carbonaceous material capable of intercalating and deintercalating lithium; and a second coating layer on the first coating layer and including a carbonaceous material. 1. A method of preparing a composite anode active material , the method comprising:spray-drying a solution including a carbon source and a pore-forming agent to obtain a composite structure;etching the composite structure to form a porous composite structure;providing a non-carbonaceous material to the porous composite structure to form a first coating layer on a surface of the porous composite structure; andproviding a carbon precursor to the first coating layer to form a second coating layer on the first coating layer arranged on the surface of the porous composite structure.2. The method of claim 1 , wherein the pore-forming agent is a silicon oxide.3. The method of claim 1 , further comprising claim 1 , after the spray-drying and before the etching claim 1 , sintering the composite structure in a nitrogen atmosphere.4. The method of claim 1 , wherein in the etching claim 1 , the composite structure is etched by a sodium hydroxide (NaOH) solution.5. The method of claim 1 , wherein the non-carbonaceous material is a silane-based gas.6. The method of claim 1 , wherein the carbon precursor comprises at least one selected from rayon-based carbon fibers claim 1 , PAN-based carbon fibers claim 1 , pitch-based carbon fibers claim 1 , vapor-grown carbon claim 1 , carbon fibers claim 1 , graphite claim 1 , a polymer claim 1 , coal tar pitch claim 1 , petroleum pitch claim 1 , meso-phase pitch claim 1 , an isotropic pitch claim 1 , cokes claim 1 , low molecular weight heavy oil claim 1 , a coal-based pitch claim 1 , phenol resin claim 1 , naphthalene resin claim 1 , epoxy resin claim 1 , vinyl chloride resin claim 1 , polyimide claim 1 , ...

SECONDARY BATTERY, GRAPHENE OXIDE, AND MANUFACTURING METHOD THEREOF

To provide a manufacturing method of graphene oxide that allows mass production through a relatively simple process, at low costs, and with safety and efficiency. A hydrogen peroxide solution, sulfuric acid, and flake graphite are put in a reaction container, and the mixture is stirred to obtain expansion graphite. The synthesized expansion graphite is washed not with pure water but with a saturated aqueous solution of magnesium sulfate (MgSO) or an organic solvent, whereby a large amount of sulfuric acid is contained between graphite layers. The expansion graphite is subjected to heat treatment or microwave irradiation to form expanded graphite, and a graphite layer is peeled by ultrasonic treatment and then oxidized to form a graphene compound. 1. A method for manufacturing a graphene compound , comprising steps of:adding graphite into solution including sulfuric acid;washing the graphite with an aqueous solution containing sulfate or an organic solvent after adding;forming expanded graphite from the graphite after washing; andperforming ultrasonic treatment on the expanded graphite.2. The method for manufacturing a graphene compound according to claim 1 , wherein claim 1 , in the step of the ultrasonic treatment claim 1 , the expanded graphite is dispersed in a dispersed medium.3. The method for manufacturing a graphene compound according to claim 2 , wherein the dispersed medium is ethanol.4. The method for manufacturing a graphene compound according to claim 1 , wherein the expanded graphite is formed by heat treatment or microwave irradiation.5. The method for manufacturing a graphene compound according to claim 1 , wherein the graphite is flake graphite.6. The method for manufacturing a graphene compound according to claim 1 , wherein the sulfate is magnesium sulfate claim 1 , potassium sulfate claim 1 , or titanium sulfate.7. The method for manufacturing a graphene compound according to claim 1 , wherein the aqueous solution containing sulfate is a saturated ...

Flexible thin-film printed batteries with 3d printed substrates

A method for printing a flexible printed battery is disclosed. For example, the method includes printing, via a three-dimensional (3D) printer, a first substrate of the flexible thin-film printed battery, printing a first current collector on the first substrate, printing a first layer on the first current collector, printing, via the 3D printer, a second substrate, printing a second current collector on the second substrate, printing a second layer on the second current collector, and coupling the first substrate and the second substrate around a paper separator membrane moistened with an electrolyte that is in contact with the first layer and the second layer.

SEPARATOR AND ENERGY STORAGE DEVICE

A separator includes: a first porous substrate; and a second porous substrate arranged on at least one surface of the first porous substrate; wherein the elongation at break of the second porous substrate is greater than the elongation at break of the first porous substrate in at least one of the machine and transverse directions of the separator. The separator has a high tensile strength and an elongation at break and good heat resistance, and may improve the safety performance of the energy storage device when the separator is applied to the energy storage device. 1. A separator , comprising:a first porous substrate; anda second porous substrate arranged on at least one surface of the first porous substrate;wherein, an elongation at a break of the second porous substrate is greater than an elongation at a break of the first porous substrate in at least one of a machine or a transverse directions of the separator.2. The separator according to claim 1 , wherein the elongation at the break of the second porous substrate is 105% to 800% in the machine and the transverse directions.3. The separator according to claim 1 , wherein a ratio of thickness of the first porous substrate to the second porous substrate is 1:2 to 3:2.4. The separator according to claim 1 , wherein the second porous substrate has a tensile strength of 150 kgf/cmor more in the machine and the transverse directions.5. The separator according to claim 1 , wherein the first porous substrate comprises one or more selected from the group consisting of polypropylene claim 1 , polyethylene claim 1 , polyethylene terephthalate claim 1 , polyimide claim 1 , or polyphthalaldehyde phenyl diamine.6. The separator according to claim 1 , wherein the second porous substrate comprises one or more selected from the group consisting of polyvinylidene fluoride claim 1 , polytetrafluoroethylene claim 1 , or polyurethane.7. The separator according to claim 1 , wherein the second porous substrate further comprises an ...

SEPARATOR AND ENERGY STORAGE DEVICE

A separator includes: a first porous substrate; and a second porous substrate arranged on at least one surface of the first porous substrate; wherein the elongation at break of the second porous substrate is greater than the elongation at break of the first porous substrate in at least one of the machine and transverse directions of the separator. The separator has a high tensile strength and an elongation at break and good heat resistance, and may improve the safety performance of the energy storage device when the separator is applied to the energy storage device. 1. A separator , comprising:a first porous substrate; anda second porous substrate arranged on at least one surface of the first porous substrate; wherein, an elongation at a break of the second porous substrate is greater than an elongation at a break of the first porous substrate in at least one of a machine or a transverse directions of the separator;wherein the elongation at the break of the second porous substrate is 105% to 800% in the machine and the transverse directions.2. The separator according to claim 1 , wherein a ratio of thickness of the first porous substrate to the second porous substrate is 1:2 to 3:2.3. The separator according to claim 1 , wherein the second porous substrate has a tensile strength of 150 kgf/cmor more in the machine and the transverse directions.4. The separator according to claim 1 , wherein the first porous substrate comprises one or more selected from the group consisting of polypropylene claim 1 , polyethylene claim 1 , polyethylene terephthalate claim 1 , polyimide claim 1 , or polyphthalaldehyde phenyl diamine.5. The separator according to claim 1 , wherein the second porous substrate comprises one or more selected from the group consisting of polyvinylidene fluoride claim 1 , polytetrafluoroethylene claim 1 , or polyurethane.6. The separator according to claim 1 , wherein the second porous substrate further comprises an inorganic particle claim 1 , and the ...

LEAD-ACID BATTERY SEPARATORS WITH IMPROVED PERFORMANCE AND BATTERIES AND VEHICLES WITH THE SAME AND RELATED METHODS

Improved battery separators are disclosed herein for use in flooded lead-acid batteries, and in particular enhanced flooded lead-acid batteries. The improved separators disclosed herein provide for enhanced electrolyte mixing and substantially reduced acid stratification. The improved flooded lead-acid batteries may be advantageously employed in applications in which the battery remains in a partial state of charge, for instance in start/stop vehicle systems. Also, improved lead-acid batteries, such as flooded lead-acid batteries, improved systems that include a lead-acid battery and a battery separator, improved battery separators, improved vehicles including such systems, and/or methods of manufacture and/or use may be provided. 141-. (canceled)42. A battery separator comprising multiple zones of varying serrated , dimpled , and/or broken rib patterns on at least one side thereof.43. The battery separator of claim 42 , comprising three zones of varying serrated claim 42 , dimpled claim 42 , and/or broken rib patterns.44. The battery separator of claim 42 , comprising more than three zones of varying serrated claim 42 , dimpled claim 42 , and/or broken rib patterns.45. The battery separator of claim 42 , wherein each zone comprises two or more rows of serrated claim 42 , dimpled claim 42 , and/or broken ribs claim 42 , wherein the rows are machine-direction rows or cross-machine direction rows.46. The battery separator of claim 42 , wherein the zones change in a lateral direction along a cross-machine direction of the separator or change in a machine direction of the separator.47. The battery separator of claim 46 , wherein the zones change in the lateral direction along a cross-machine direction of the separator.48. The battery separator of claim 46 , wherein the zones change in a machine direction of the separator.49. The battery separator of claim 42 , comprising zones of varying broken ribs.50. The battery separator of wherein one or more of the ribs are ...

Multilayer hybrid battery separators for lithium ion secondary batteries and methods of making same

A multi-layered battery separator for a lithium secondary battery includes a first layer of a dry processed membrane bonded to a second layer of a wet processed membrane. The first layer may be made of a polypropylene based resin. The second layer may be made of a polyethylene based resin. The separator may have more than two layers. The separator may have a ratio of TD/MD tensile strength in the range of about 1.5-3.0. The separator may have a thickness of about 35.0 microns or less. The separator may have a puncture strength of greater than about 630 gf. The separator may have a dielectric breakdown of at least about 2000V.

MICROPOROUS SHEET PRODUCT AND METHODS FOR MAKING AND USING THE SAME

Microporous sheet product and methods of making and using the same. In one embodiment, the microporous sheet product is made by a process that includes melt-extruding a sheet material using an extrusion mixture that includes a thermoplastic polymer, a superabsorbent polymer, and a compatibilizing agent. After extrusion, the compatibilizing agent may be removed from the sheet material. When the sheet product is imbibed with a polar or ion-containing liquid, the superabsorbent polymer swells, causing a reduction in the pore size of the sheet product. The exposure also causes some of the superabsorbent polymer to migrate to the exterior of the microporous sheet product. The microporous sheet product may be used, for example, as a battery separator, as a food packaging material, as a diffusion barrier in the ultrafiltration of colloidal matter, and in disposable garments. 1. A microporous food packaging sheet product suitable for contacting a food item , the microporous food packaging sheet product made by a method comprising melt-extruding an extrusion mixture to produce a sheet material in film form and then cooling the sheet material , the extrusion mixture comprising a thermoplastic polymer , a superabsorbent polymer , and a compatibilizing agent , wherein the compatibilizing agent comprises a food additive , the compatibilizing agent promoting mixing of the thermoplastic polymer and the superabsorbent polymer and forming , by phase-separation , micropores in the sheet material , wherein the compatibilizing agent is retained in situ in the micropores of the sheet material , wherein the microporous food packaging sheet product is a single layer , wherein the microporous food packaging sheet product has capillary porosity , and wherein the microporous food packaging sheet product , even without being stretched and/or even without having the compatibilizing agent removed , comprises an open-celled matrix of the thermoplastic polymer in which the superabsorbent polymer ...

Fluorosulfonyl group-containing compound, fluorosulfonyl group-containing monomer, and their production methods

wherein R1 and R2 are a C1-3 alkylene group, and RF1 and RF2 are a C1-3 perfluoroalkylene group.

MAT MADE OF GLASS FIBERS OR POLYOLEFIN FIBERS USED AS A SEPARATOR IN A LEAD-ACID BATTERY

Embodiments of the invention provide methods and apparatuses for enhancing electron flow within a battery, such as a lead-acid battery. In one embodiment, a battery separator may include a conductive surface or layer upon which electrons may flow. The battery separator may include a fiber mat that includes a plurality of electrically insulative fibers. The battery separator may be positioned between electrodes of the battery to electrically insulate the electrodes. The battery separator may also include a conductive material disposed on at least one surface of the fiber mat. The conductive material may contact an electrode of the battery and may have an electrical conductivity that enables electron flow on the surface of the fiber mat. 1. A battery separator comprising:a mat including a plurality of electrically insulative fibers, the mat being configured to separate a positive electrode and a negative electrode of a battery to electrically insulate the positive and negative electrodes; anda conductive material disposed on one surface of the mat to form a conductive layer on the surface of the mat, wherein the conductive material contacts at least one of the positive or negative electrodes of the battery, and wherein the conductive material enables electron flow on the surface of the mat.2. The battery separator of claim 1 , wherein the conductive material comprise a film or sheet that is positioned atop the surface of the mat and coupled thereto claim 1 , the film or sheet including the conductive material.3. The battery separator of claim 2 , wherein the film or sheet is a metal film or a conductive polymer film.4. The battery separator of claim 1 , wherein the surface of the mat includes a catalyst claim 1 , and wherein the conductive material consists of metal ions grown on the surface of the mat via the catalyst.5. The battery separator of claim 1 , wherein the conductive material is a material that is deposited on the surface of the mat via chemical vapor ...

Multilayer microporous separators for lithium ion secondary batteries and related methods

An improved multilayer laminated microporous battery separator for a lithium ion secondary battery, and/or a method of making or using this separator is provided. The preferred inventive dry process separator is a tri-layer laminated Polypropylene/Polyethylene/Polypropylene microporous membrane with a thickness range of 12 μm to 30 μm having improved puncture strength and low electrical resistance for improved cycling and charge performance in a lithium ion battery. In addition, the preferred inventive separator's or membrane's low Electrical Resistance and high porosity provides superior charge rate performance in a lithium battery for high power applications.

Rechargeable aluminum ion battery

A rechargeable battery using a solution of an aluminum salt as an electrolyte is disclosed, as well as methods of making the battery and methods of using the battery.

Aqueous manganese ion battery

An alternative grid energy storage system is described herein. In one embodiment, an electrochemical cell comprises a high specific surface area cathode (e.g., a cathode comprising a carbon nanofoam paper, a carbon nanotube mesh, a particulate carbon material, electrolytic manganese dioxide, or a manganese dioxide film), a zinc or lead anode (e.g., Zn or Pb foil), a selective ion-conductive separator that does not conduct zinc ions (e.g., a NAFION sulfonated tetrafluoroethylene based fluoropolymer-copolymer separator) between the anode and the cathode, and an aqueous electrolyte comprising a manganese salt (e.g., aqueous manganese sulfate) contacting the electrodes and the separator. A battery comprising two or more of the electrochemical cells electrically connected together in series, parallel, or both, also is described.

STRIPLINE DETECTOR FOR IN SITU BATTERY AND FUEL CELL NMR

Provided are batteries and fuel cells incorporating a stripline detector for use in nuclear magnetic resonance (NMR). The stripline batteries and fuel cells can be used for in situ NMR measurement of battery or fuel cell chemistry. Also provided are methods for measuring in situ battery and fuel cell NMR using the stripline batteries and fuel cells of the invention. 112-. (canceled)13. A fuel cell comprising a stripline detector.14. The fuel cell of claim 13 , further comprising metallic cathode and anode support plates arranged in substantially parallel planes and situated on opposite sides of the stripline detector.15. The fuel cell of claim 14 , wherein the metallic cathode support plate comprises aluminum.16. The fuel cell of claim 14 , wherein the metallic cathode support plate further comprises a cathode material deposited on the cathode support plate.17. The fuel cell of claim 16 , wherein the cathode material deposited on the cathode support plate is selected from the group consisting of lithium iron phosphate (LiFePO) claim 16 , lithium cobalt oxide (LiCoO) claim 16 , and spinel cathode materials.18. The fuel cell of claim 14 , wherein the metallic anode support plate comprises copper.19. The fuel cell of claim 18 , wherein the metallic anode support plate further comprises an anode material deposited on the cathode support plate.20. The fuel cell of claim 19 , wherein the anode material deposited on the anode support plate is graphite.21. The fuel cell of claim 14 , further comprising a first nonconductive separator situated between the stripline detector and the metallic cathode support plate claim 14 , and a second nonconductive separator situated between the stripline detector and the metallic anode support plate claim 14 , wherein the first nonconductive separator electrically isolates the stripline detector from the cathode claim 14 , and the second nonconductive separator electrically isolates the stripline detector from the anode.22. The fuel cell ...

Battery Separator With Improved Oxidation Stability

The invention relates to a thermoplastic polymer-based battery separator, which contains a compound of formula R (OR1)n(COOMx+1/x)m. In said formula, R represents a non-aromatic hydrocarbon group comprising between 10 and 4,200 carbon atoms, which can be interrupted by oxygen atoms, R1 represents H, —(CH2)kCOOMx+1/x or —(CH2)k—SO3Mx+1/x, whereby k stands for 1 or 2, M represents an alkali or earth alkaline metal ion, H+ or NH4+, whereby not all variables of M are defined simultaneously as H+, n stands for 0 or 1, m stands for 0 or a whole number from 10 to 1,400 and x stands for 1 or 2. The ratio of oxygen atoms to carbon atoms in the compound according to the aforementioned formula ranges between 1:1.5 and 1:30 and n and m cannot simultaneously represent zero.

Slurry composition for non-aqueous secondary battery functional layer, functional layer for non-aqueous secondary battery, separator for non-aqueous secondary battery, and non-aqueous secondary battery

Provided is a slurry composition for a non-aqueous secondary battery functional layer with which it is possible to form a functional layer that has excellent adhesiveness and that can improve rate characteristics of a non-aqueous secondary battery. The slurry composition for a non-aqueous secondary battery functional layer contains organic particles, a binder, and a melamine compound. The melamine compound constitutes a proportion of not less than 0.5 mass % and not more than 85 mass % among the total of the binder and the melamine compound.

MULTILAYER NANOPOROUS SEPARATOR

A separator for a lithium battery having (a) a porous polymeric layer, such as a polyethylene layer; and (b) a nanoporous inorganic particle/polymer layer on both sides of the polymeric layer, the nanoporous layer having an inorganic oxide and one or more polymers; the volume fraction of the polymers in the nanoporous layer is about 15% to about 50%, and the crystallite size of the inorganic oxide is 5 nm to 90 nm. 1. A separator for use in a lithium battery comprising:(a) a porous polymeric layer, which porous polymeric layer comprises a plurality of pores, and(b) 0.27 grams, or greater, per square meter of boehmite particles disposed within the plurality of pores of the porous polymeric layer.2. The separator of claim 1 , wherein the boehmite particles comprise hydrophobic boehmite particles.3. The separator of claim 2 , wherein the hydrophobic boehmite particles comprise a reaction product of an organic carbonate with boehmite.4. The separator of claim 3 , wherein the organic carbonate is ethylene carbonate.5. The separator of claim 3 , wherein the organic carbonate is fluoroethylene carbonate.6. The separator of claim 2 , wherein the hydrophobic boehmite particles comprise an organic polymer chemically reacted to at least a portion of the boehmite of said boehmite particles.7. The separator of claim 1 , wherein an average crystallite size of said boehmite particles disposed within the pores of said porous polymeric layer is between 5 nm and 25 nm.8. The separator of claim 1 , wherein an average crystallite size of said boehmite particles disposed within the pores of said porous polymeric layer is between 5 nm and 8 nm.9. The separator of claim 1 , wherein the separator further comprises a nanoporous layer adjacent at least one of two opposing sides of the porous polymeric layer claim 1 , wherein said nanoporous layer comprises boehmite particles and one or more organic polymer binders.10. The separator of claim 9 , wherein the boehmite particles of said ...

Wrapping electrode assembly and method for manufacturing the same

A wrapping electrode assembly for use in a secondary battery manufactured by an electrode-stacking method includes: an electrode plate which has a coating layer of an electrode active material and a non-coated protruding portion, the electrode active material being capable of reversibly inserting and extracting lithium ions; first and second separator films which cover both surfaces of the electrode plate while exposing only the non-coated protruding portion; and an insulating polymer film which is positioned between the first separator film and the second separator film at least on a portion of a circumference of the electrode plate to be bonded to the first separator film and the second separator film, wherein the insulating polymer film is formed as being divided into at least two parts.

METHOD FOR MEASURING OIL CONTENT OF LITHIUM BATTERY SEPARATOR BY USING DSC

A method for measuring the oil content of a lithium battery separator by using DSC includes the following steps: taking 5-10 mg of an oil-containing separator sample from the lithium battery separator, and taking 5-10 mg of an oil-free separator sample from an oil-free separator; performing an enthalpy test on the oil-free separator sample at room temperature by using a differential scanning calorimeter to obtain a first enthalpy value, and performing an enthalpy test on the oil-containing separator sample by using the differential scanning calorimeter to obtain a second enthalpy value; subtracting the second enthalpy value from the first enthalpy value to obtain a difference, and then dividing the difference by the first enthalpy value to obtain the oil content of the oil-containing separator sample. 1. A method for measuring an oil content of a lithium battery separator by using DSC , comprising the following steps:taking 5-10 mg of an oil-containing separator sample from the lithium battery separator, taking 5-10 mg of an oil-free separator sample from an oil-free separator, and performing an enthalpy test on the oil-free separator sample at room temperature by using a differential scanning calorimeter to obtain a first enthalpy value;performing first heating on the oil-containing separator sample from the room temperature to a temperature of 160-240° C. at a heating rate of 3-30 K/min, maintaining the temperature for 5-15 min, and then cooling the oil-containing separator sample to the room temperature at a cooling rate of 3-30 K/min; andperforming second heating on the oil-containing separator sample from the room temperature to the temperature of 160-240° C. at the heating rate of 3-30 K/min, and then naturally cooling the oil-containing separator sample to the room temperature;performing an enthalpy test on the oil-containing separator sample by using the differential scanning calorimeter to obtain a second enthalpy value, subtracting the second enthalpy ...

Thin battery separators and methods

In accordance with at least selected aspects, objects or embodiments, optimized, novel or improved membranes, battery separators, batteries, and/or systems and/or related methods of manufacture, use and/or optimization are provided. In accordance with at least selected embodiments, the present invention is related to novel or improved battery separators that prevent dendrite growth, prevent internal shorts due to dendrite growth, or both, batteries incorporating such separators, systems incorporating such batteries, and/or related methods of manufacture, use and/or optimization thereof. In accordance with at least certain embodiments, the present invention is related to novel or improved ultra thin or super thin membranes or battery separators, and/or lithium primary batteries, cells or packs incorporating such separators, and/or systems incorporating such batteries, cells or packs. In accordance with at least particular certain embodiments, the present invention is related to shutdown membranes or battery separators, and/or lithium primary batteries, cells or packs incorporating such separators, and/or systems incorporating such batteries, cells or packs.

Metal hydride battery with added hydrogen gas, oxygen gas or hydrogen peroxide

The invention relates to a starved metal hydride battery. The battery is characterized in that the battery further comprises adding of oxygen gas or hydrogen gas or hydrogen peroxide or a combination thereof in order to rebalance the electrodes and replenish the electrolyte by reactions with the electrode materials.

NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR PRODUCING A NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

The present invention provides a technology that allows supplying stably a nonaqueous electrolyte secondary battery having a high capacity retention rate and being excellent in resistance to deterioration. The nonaqueous electrolyte secondary battery disclosed herein is provided with a wound electrode body resulting from winding a stack having a stacking of a positive electrode and a negative electrode across separators The positive electrode has a foil-shaped positive electrode collector and a positive electrode mix layer Each separator has a resin substrate layer and a heat resistance layer In the nonaqueous electrolyte secondary battery disclosed herein, the peel strength of a boundary between the resin substrate layer and the heat resistance layer is 16 N/m or more and 155 N/m or less, and the density of the positive electrode mix layer is 2.3 g/cc or more and 2.6 g/cc or less. In this the nonaqueous electrolyte secondary battery, sufficient flexibility of the stack as a whole can be secured even when using high-peel strength separators in order to increase resistance to deterioration. Drops in production efficiency can be suitably suppressed as a result. 1. A method for producing a nonaqueous electrolyte secondary batten , in which a wound electrode body and a nonaqueous electrolyte solution are accommodated in a case , the method comprising:a winding step of producing a wound electrode body by stacking a positive electrode and a negative electrode across a separator to produce a stack, followed by winding the stack; anda sealing step of accommodating the wound electrode body and the nonaqueous electrolyte solution in the case, followed by sealing the case,wherein the positive electrode has a foil-shaped positive electrode collector, and a positive electrode mix layer provided on a surface of the positive electrode collector: andthe separator bus a resin substrate layer containing an insulating resin, and a heal resistance layer formed on one face of the resin ...

Lithium secondary battery separator and method of manufacturing same

Provided is a lithium secondary battery separator including a laminate of a substrate and a porous heat-resistant polyimide film which covers at least one surface of the substrate. The porous heat-resistant polyimide film has pores which are regularly arrayed three-dimensionally and a film thickness of 5-20 μm. Penetration damage to the separator by growth of dendrite-shaped lithium is avoided, and it is also possible to meet a request which is demanded of the lithium secondary battery separator.

SEPARATOR FOR METAL AIR CELLS

An alkaline electrochemical cell includes a cathode; a gelled anode having an anode active material and an electrolyte; and a separator disposed between the cathode and the anode; wherein the separator includes a non-conductive, porous material having a mean pore size of about 1 micron to about 5 microns, a maximum pore size of about 19 microns, and an air permeability of about 0.5 cc/cm/s to about 3.8 cc/cm/s at 125 Pa. 119.-. (canceled)20. An alkaline electrochemical cell comprising:an air cathode;an anode comprising an anode active material and an electrolyte; anda separator disposed between the air cathode and the anode; [{'sup': 2', '2, 'the separator comprises a non-conductive, porous material having a mean pore size of about 1 micron to about 5 microns, a maximum pore size of about 19 microns, and an air permeability of about 0.5 cc/cm/s to about 3.8 cc/cm/s at 125 Pa; and'}, 'the alkaline electrochemical cell is a metal-air cell., 'wherein21. The alkaline electrochemical cell of claim 20 , wherein the non-conductive claim 20 , porous material comprises polyvinyl alcohol.22. The alkaline electrochemical cell of claim 20 , wherein the non-conductive claim 20 , porous material is non-woven.23. The alkaline electrochemical cell of claim 22 , wherein the non-conductive claim 22 , porous material comprises polyvinyl alcohol.24. The alkaline electrochemical cell of claim 20 , wherein the separator has an air permeability of about 500 cc/cm/min to about 3000 cc/cm/min claim 20 , at 1 KPa.25. The alkaline electrochemical cell of claim 20 , wherein the separator has a basis weight of about 20 g/mto about 32 g/m.26. The alkaline electrochemical cell of claim 20 , wherein the separator has a dry thickness of about 60 microns to about 120 microns.27. The alkaline electrochemical cell of claim 20 , wherein the separator comprises less than 3 full layers of the non-conductive claim 20 , porous material.28. The alkaline electrochemical cell of claim 20 , wherein the ...

Paste composition for lithium ion secondary battery negative electrode-use, composite particles for lithium ion secondary battery negative electrode-use, slurry composition for lithium ion secondary battery negative electrode-use, negative electrode for lithium ion secondary battery-use, and lithium ion secondary battery

A material for slurry composition-use for example is a paste composition including a negative electrode active material that contains a silicon-based negative electrode active material in an amount of at least 30 mass % and a water-soluble polymer in an amount of at least 3 parts by mass and less than 500 parts by mass per 100 parts by mass of the silicon-based negative electrode active material. The water-soluble polymer includes at least 20.0 mass % and no greater than 79.5 mass % of structural units derived from an ethylenically unsaturated carboxylic acid compound (A) and at least 20.0 mass % and no greater than 79.5 mass % of structural units derived from a copolymerizable compound (B) that has an ethylenically unsaturated bond and a water solubility of at least 7 g/100 g at 20° C., and the water-soluble polymer has a degree of swelling in electrolysis solution of less than 120%.

Method of preparing lithium secondary battery

A method of preparing a lithium secondary battery is provided which may effectively perform pre-lithiation, wherein, a closed square band-shaped lithium foil having an opening formed at a center thereof is prepared during the preparation of the lithium secondary battery, and a negative electrode is disposed in the opening of the lithium foil, but pre-lithiation of the negative electrode may be performed without a separate pre-lithiation process by disposing the negative electrode and the lithium foil so as not to overlap with each other and disposing a negative electrode tab so as to be in contact with the lithium foil.

Separator, method of preparing the same and lithium-ion battery including the same

A separator including a porous substrate layer, an intermediate layer, and a ceramic coating layer is provided. The ceramic coating layer is disposed on a side of the intermediate layer away from the porous substrate layer. The intermediate layer includes a metal oxide powder. The particle diameter of the metal oxide powder is less than the pore diameter of the porous substrate layer, and at least a portion of the metal oxide powder is embedded in the porous substrate layer. A method of preparing the separator and a lithium-ion battery including the separator are also provided.

Lithium secondary battery separator including adhesive layer

A coating composition including a solvent, inorganic particles, a dispersant, and a binder, wherein the binder includes a binder B and a binder A, both the binder B and the binder A include a VDF unit and a HFP unit, binder B includes 8 to 50 wt % of the HFP-derived unit, and binder A includes 5 wt % or more of the HFP-derived unit under a condition that a proportion of the HFP-derived unit in the binder A is 80% or less of a proportion of the HFP-derived unit in the binder B, the binder B has a total number average molecular weight of 200,000 to 2,000,000 Da, and the binder A has a total number average molecular weight corresponding to 70% or less of that of the binder B, and a weight ratio of the binder A:the binder B in the coating composition is 0.1 to 10:1. The coating composition is suitable for use in coating at least one surface of a porous substrate having a plurality of pores.

Electrode, electrode element, non-aqueous electrolyte power storage element, and method for manufacturing electrode

An electrode is provided. The electrode includes an electrode substrate, an electrode composite layer on the electrode substrate, and a porous insulating layer on the electrode composite layer. The electrode composite layer contains an active material. The porous insulating layer contains a resin as a main component. At least a part of the porous insulating layer is present inside the electrode composite layer and integrated with a surface of the active material. The porous insulating layer has a direct current resistance value of 40 MΩ or more either before or after a bending test in which the electrode is bent 20 times by a cylindrical mandrel bending tester equipped with a cylindrical mandrel having a diameter of 4 mm.

FREESTANDING, DIMENSIONALLY STABLE MICROPOROUS WEBS

A thin, freestanding, microporous polyolefin web with good heat resistance and dimensional stability includes an inorganic surface layer. A first preferred embodiment is a microporous polyolefin base membrane in which colloidal inorganic particles are present in its bulk structure. Each of second and third preferred embodiments is a thin, freestanding microporous polyolefin web that has an inorganic surface layer containing no organic hydrogen bonding component for the inorganic particles. The inorganic surface layer of the second embodiment is achieved by hydrogen bonding with use of an inorganic acid, and the inorganic surface layer of the third embodiment is achieved by one or both of hydrogen bonding and chemical reaction of the surface groups on the inorganic particles. 130-. (canceled)31. A freestanding polyolefin web , comprising:a microporous polyolefin membrane having a surface and a bulk structure; andan aqueous dispersion-formed porous inorganic surface layer comprising inorganic particles and an inorganic acid, wherein the porous inorganic surface layer covers at least a portion of the surface of the polyolefin membrane, andwherein the polyolefin web exhibits in-plane dimensional stability above the melting point of the polyolefin membrane.32. The polyolefin web of claim 31 , wherein the inorganic particles are independently selected from a group of metal oxides including silica claim 31 , alumina claim 31 , titania claim 31 , zirconia claim 31 , and combinations thereof.33. The polyolefin web of claim 31 , wherein the inorganic particles comprise fumed inorganic particles or aggregates of inorganic primary particles.34. The polyolefin web of claim 33 , wherein the inorganic surface layer further includes other inorganic particles consisting of colloidal particles and boehmite.35. The polyolefin web of claim 31 , wherein the fumed inorganic particles have a mean aggregate size of about 100 nm to about 300 nm.36. The polyolefin web of claim 35 , wherein ...

Ethylene Polymer, Stretched Molded Article and Microporous Membrane

The present invention presents an ethylene polymer, wherein the ethylene polymer has a weight average molecular weight (Mw) of 200,000 or more and 3,000,000 or less, a proportion of a component (α130) with the lowest mobility of 40% or more and 60% or less, and a ratio β/γ of a middle motion component (β) to a component (γ) with the highest mobility of 1.0 or more and 4.0 or less when a three-component approximation of free induction decay at 130° C. measured by a solid echo method of pulse NMR is performed.

Power storage device and electronic device

To provide a power storage device exhibiting excellent charge and discharge characteristics at high temperature. To provide a power storage device exhibiting excellent charge and discharge characteristics at a wide range of temperature. Such a power storage device includes a positive electrode, a negative electrode, a separator, and an electrolytic solution. The separator is located between the positive electrode and the negative electrode and contains polyphenylene sulfide. The electrolytic solution contains an ionic liquid and an alkali metal salt.

Coated lead acid battery electrode plates; method for making coated electrode plates and lead acid batteries containing coated electrode plates

Disclosed are electrode plates for a lead acid battery. The electrode plates are formed of an electrode plate having a face, the electrode plate comprising a lead or lead alloy grid coated with an active material and the electrode plates having a porous, non-woven mat comprised of polymer fibers coating on the face of the electrode plate, as well as a method for making the coated electrode plates and lead acid batteries containing the coated electrode plates.

Metal Accumulation Inhibiting And Performance Enhancing Supplement And A System For Delivering The Supplement

The invention relates to a metal accumulation inhibiting and performance enhancing isolated or synthesized supplement for use in or in association with rechargeable electrochemical energy storage cells, and a system for delivering the supplement including articles of plastic, articles containing plastic, articles similar to plastic, plastic containers, apparatus, porous electrodes, liquids and electrolytes, in particular, articles, apparatus, electrodes, insolating sheets, liquids and electrolytes associated with rechargeable electrochemical energy storage cells incorporating one or more supplements. An effective amount of the supplement typically exhibits foaming of an electrolyte, providing a visual indicator of activity in attenuating metal deposition on, and thereby reducing metal accumulation on, various surfaces in the rechargeable electrochemical storage cell.

Metal Accumulation Inhibiting And Performance Enhancing Supplement And A System For Delivering The Supplement

The invention relates to a metal accumulation inhibiting and performance enhancing isolated or synthesized supplement for use in or in association with rechargeable electrochemical energy storage cells, and a system for delivering the supplement including articles of plastic, articles containing plastic, articles similar to plastic, plastic containers, apparatus, porous electrodes, liquids and electrolytes, in particular, articles, apparatus, electrodes, insolating sheets, liquids and electrolytes associated with rechargeable electrochemical energy storage cells incorporating one or more supplements. An effective amount of the supplement typically exhibits foaming of an electrolyte, providing a visual indicator of activity in attenuating metal deposition on, and thereby reducing metal accumulation on, various surfaces in the rechargeable electrochemical storage cell.

Nonaqueous Electrolytic Solution and Nonaqueous Secondary Battery

Provided is a nonaqueous electrolytic solution containing a nonaqueous solvent, a lithium salt, and at least one compound selected from the group consisting of compounds represented by general formula (1): R—(S)—R, general formula (2): X—Si(OR)R, general formula (3), general formula (4), and general formula (18): X—Si(OR′OR)Rm.

SOLID-STATE POLYMER SEPARATOR FOR LITHIUM-ION BATTERIES

A safe, thin and highly conductive solid-state polymer separator for lithium-ion batteries. The separator may be deployed in a battery which lacks solvent and allows lithium ions to pass through channels via the polymerized structure. The lithium conductive polymers may be formed through free radical polymerization and may comprise a lithium conductive polymer having a polymerized carbonate solvent between iterative spacers, a lithium conductive material, and a reinforcing additive. Optionally, an interface coating may reside on one or more sides of the separator to ensure long-term operation. By utilizing such a separator in a solid-state lithium battery, cell assembly may be simplified, shrinkage may be decreased and safety may be increased. Various methods of manufacturing the solid-state polymer separator for lithium-ion batteries are disclosed. 1. A battery , the battery comprising:an at least one cathode;an at least one anode; andan at least one solid separator in contact with said at least one cathode and said at least one anode, the at least one solid separator comprising a main polymer, a structural polymer, and a reinforcing additive that in combination form a solid fibrous mat.2. The battery of claim 1 , wherein said at least one solid separator is free standing and non-reactive at room temperature.3. The battery of claim 1 , wherein said main polymer comprises an at least one spacer monomer and an at least one carbonate monomer.4. The battery of claim 3 , wherein said spacer monomer is an at least one monomer from a group of monomers claim 3 , the group consisting of a butane diol claim 3 , a hexane diol claim 3 , a triacrylate claim 3 , a diacrylate claim 3 , and a monoacrylate.5. The battery of claim 3 , wherein said at least one carbonate monomer is an at least one monomer from a group of monomers claim 3 , the group consisting of a vinylene carbonate claim 3 , an oxirane claim 3 , a glycidyl acrylate claim 3 , a prop-1-ene1 claim 3 ,3-sultone claim 3 ...

Battery, separator, electrode, coating material, battery pack, electronic apparatus, electrically driven vehicle, electrical storage device, and electric power system

Provided is a battery including a positive electrode, a negative electrode, an electrolytic solution, and a particle-containing resin layer that contains particles and a resin. A shape of the particles includes a plane, a plane rate of the particles is greater than 40% and equal to or less than 100%, and a refractive index of the particles is equal to or greater than 1.3 and less than 2.4.