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 ...

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.

ПЕРЕЗАРЯЖАЕМЫЙ ЭЛЕКТРОХИМИЧЕСКИЙ ЭЛЕМЕНТ И СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ

Изобретение относится к области электротехники, а именно к перезаряжаемому аккумуляторному элементу, преимущественно ионно-литиевому элементу, и способу его изготовления. Перезаряжаемый электрохимический аккумуляторный элемент содержит корпус (1), положительный электрод (11), отрицательный электрод (10), электролит (9) с содержанием SOи токопроводящей соли активного металла, при этом, по меньшей мере, один из электродов (11) закрыт оболочкой (13) из стекловолокнистого текстильного материала, размер поверхности которой превышает размер поверхности электрода (11), вследствие чего стекловолокнистый текстильный материал выходит за пределы ограничительной линии (14) электрода, кроме того, два закрывающих электрод с обеих сторон слоя (15, 16) стекловолокнистого текстильного материала соединены между собой по краю электрода (11) посредством краевого соединения (17). Повышение безопасности и срока службы повторно заряжаемого аккумуляторного элемента является техническим результатом изобретения.

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.

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 ...

СЕПАРАТОР И АЛЮМИНИЕВЫЙ ЭЛЕКТРОЛИТИЧЕСКИЙ КОНДЕНСАТОР

ПЕРЕЗАРЯЖАЕМЫЙ ЭЛЕКТРОХИМИЧЕСКИЙ ЭЛЕМЕНТ И СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ

... 1. Перезаряжаемый электрохимический аккумуляторный элемент, содержащий корпус (1), положительный электрод (11), отрицательный электрод (10) и электролит (9) с содержанием SOи токопроводящей соли активного металла элемента,отличающийся тем, что, по меньшей мере, один из электродов (11) содержит оболочку (13) из стекловолокнистого текстильного материала, размер поверхности оболочки (13) из стекловолокнистого текстильного материала превышает размер поверхности электрода (11), вследствие чего стекловолокнистый текстильный материал выходит за пределы ограничительная линии (14) электрода, и что два покрывающих электрод (11) с обеих сторон слоя (15, 16) стекловолокнистого текстильного материала соединены между собой по краю электрода (11) посредством краевого соединения (17).2. Аккумуляторный элемент по п. 1, отличающийся тем, что закрытым оболочкой (13) электродом является положительный электрод (11) элемента.3. Аккумуляторный элемент по п. 1 или 2, отличающийся тем, что положительный электрод ...

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 ...

Blattförmiger Separator und ventilgeregelte Bleisäurebatterie

POLYMER FOLIE

Separatormaterial für Speicherbatterien und Verfahren zu dessen Herstellung.

Separatormaterial für Speicherbatterien und Verfahren zu dessen Herstellung.

SEKUNDÄRBATTERIE MIT NICHT WÄSSRIGEM ELEKTROLYTEN

SEPARATOR FÜR ZYLINDRISCHE ZELLEN

Nichtwässrige elektrochemische Zelle und Verfahren zu deren Herstellung

Verfahren und Vorrichtung zur Herstellung von gerippten Scheidern fuer elektrische Akkumulatoren

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 ...

Akkumulator mit mehreren Elektrodenplatten

Akkumulator (50) mit mehreren Elektrodenplatten (56), die nebeneinander angeordnet sind und wenigstens einen Elektrodenplattenstapel in Blockform bilden, wobei die Elektrodenplatten (56) jeweils einen Rahmen (12, 14, 16, 18) mit einem darin angeordnetem Gitter (11) aufweisen und wobei zumindest das Gitter (11) mit einer aktiven Masse (7) befüllt ist, dadurch gekennzeichnet, dass wenigstens eine der Elektrodenplatten (56) wenigstens ein vom Rahmen (12, 14, 16, 18) beabstandetes durchgehendes Loch (61) im Bereich des mit der aktiven Masse (7) bedeckten Bereichs des Gitters (11) aufweist.

ALKALISCHE PRIMAER-ZELLE

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

Gasdichte Bleisäurebatterie

Batterieseparator

Batterieseparator und Verfahren zu seiner Herstellung

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.

Standby Electrical Energy Storage Devices

Corrosion-resistant battery separator

A battery separator comprises a porous sheet of bleached sulphite western hemlock pulp which has an alpha-cellulose content of about 88%. Such pulp is said to have a resistance to corrosion hitherto found only in pulp of higher alpha-cellulose content. The pulp may be impregnated with a phenol-formaldehyde resin by adding the resin to the pulp before it is formed into a sheet, or to the sheet after it has been formed and before or after it is dried. The separator may be formed with ribs, or ribs may be attached to it. In an Example, a urea-formaldehyde resin is also added to the pulp for wet strength. The specification also describes for purposes of comparison battery separators made from the following pulps (alpha-cellulose content in brackets): Western Red Cedar sulphate (88.5%), Norway Spruce sulphite (87.5%), Scotch Pine sulphate (89.5%), Southern Pine sulphate (88.7%), Black Spruce sulphite (88.5%), Jack Pine sulphite (88.5%), Balsam sulphite (88.5%) and Western Hemlock sulphite (81.5% ...

SEALED LEAD ACID BATTERY AND SEPARATOR FOR USE IN SEALED LEAD ACID BATTERY

Improvements in or relating to the manufacture of fibrous webs for use in making separators for storage batteries

... 709,343. Batteries. BRITISH FIBRAK SEPARATOR CO., Ltd. July 3,1951, [April 25, 1951.] No. 15806/51. Class 53. [Also in Group VIII] A separator consists of two sheets 11, 12 of cellulosic web impregnated with a thermosetting resin, one of the sheets having hollow ribs 13. The two sheets are joined together by grains of a thermoplastic resin which may be scattered over the lower sheet or packed into the ribs as shown at 15, the two sheets being then placed between heated platens to sinter the plastic grains. Specifications 685,099 and 708,350 are referred to.

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 for enclosed cell

A separator for an enclosed cell having a strong adhesion to an electrode plate, contributing to the low internal resistance of the cell, hardly causing puncture due to repeated charging/discharging, and prolonging the life of the cell. Rubber small particles are made to adhere to the surface of the fibers of a nonwoven fabric constituting the separator, thereby allowing the particles to be present between the fibers. The rubber particles serve as elastic bodies, absorb relative displacements of the fibers, and improve the compression repulsion of the separator.

Glass fibre battery separator

A separator in which a flowing rate of an electrolyte is less than 100 mm/hr and a sealed lead acid battery using the separator. The separator may comprise glass fibres and silica powder.

Improvements in or relating to energy storage devices

FIGURE 1 shows a battery generally designated 1, which is a lead-acid battery. The battery 1 includes the components normally found in a GMF (glass microfibre) battery. The battery 1 includes a container or box 2 of tough flame retardant material and positive plates or electrodes 3 comprising lead alloy grids covered with an active material of lead dioxide. In one embodiment of the battery 1, acid gelling material such as silica or the like (for example fumed silica or sodium silicate) is introduced into each GMF separator 5, preferably, during the manufacture of the separator itself. In a second embodiment, a gel is made up outside the separator container, for example, by mixing sodium silicate solution (water glass) and sulphuric acid and the battery is filled with the gel, thus allowing a gel to develop generally uniformly throughout the container and battery.

Separator

Improvements relating to electric battery separators

... 674,684. Battery separators. WILLARD STORAGE BATTERY CO. May 10, 1950 [Sept. 15, 1949], No. 11620/50. Class 53. [Also in Group VIII] A separator comprises a film of synthetic resin containing heterogeneouslyarranged cellulose fibres and is made by impregnating a web of the fibres with a suspension of heatsoftenable resin particles, drying and heating the web to cause the resin to soften and flow. The quantity of added resin is from 50 to 60 per cent of the weight of the dry web. The suspension may consist of particles of styrene, butadiene or polyvinyl chloride and polystyrene and a solvent emulsified in water. Fig. 1 shows an apparatus for making a long length of separator material which is subsequently cut to the required size. A sheeting A of cellulose fibres such as cotton, linen, or wool, is formed on a belt B by plying a number of thin cotton &c. webs 10 from a series of cards C. The plied non-woven sheet A is passed between rollers 11, 12 while the resin latex is distributed over ...

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.

Improved manufacture of storage battery separators

... 200,913. Wade, H., (Gould Storage Battery Co.). April 20, 1922. Separators.-Fibrous separators for storage batteries are treated with linseed oil which may subsequently be oxidized. The oil may be dissolved in benzol, turpentine or other volatile solvent and the separators immersed in the solution, or they may first be placed in a vacuum apparatus to which the solution is admitted, the vacuum being maintained until the solution has risen above the separators. The saturated separators are finally exposed to a drying agent such as the air to evaporate the solvent. Warm air or other medium may be used to oxidize the oil in the pores of the separators.

Battery separators

Electrical energy storage structures

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 ...

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

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 ...

Materials for fire protection

ELECTROLYTIC SOLUTION OF CARRYING POLYMER FILM AND SECONDARY BATTERY

PRISM TABLES ELECTRO-CHEMICAL CELL

SEPARATOR FOR CYLINDRICAL CELLS

OXYHALID CONTAINING ELECTRO-CHEMICAL HIGH TEMPERATURE 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

LITHIUM ION BATTERY WITH A SOLID ELECTROLYTE AND A FIBER LAYER

SEPARATOR WITH COATING, PROCEDURE FOR ITS PRODUCTION AND WITH THE SEPARATOR MISTAKE ELECTRICAL AND ELECTRONIC PARTS

ELECTRO-CHEMICAL MICRO CELL MECHANISMS AND BUILDING GROUPS WITH CURRENT COLLECTORS CORROSION RESISTANT AND PROCEDURES FOR YOUR PRODUCTION

POROUS ASBESTOS SUITOR SEPARATOR AND MANUFACTURING PROCESS FOR IT

SEPARATOR FOR ARRANGEMENT IN BATTERIES AND BATTERY

ELECTRO-CHEMICAL ALKALI METAL CELL AND PROCEDURE FOR YOUR PRODUCTION

SEPARATOR FROM GLASS FIBER FLEECE.

PROCEDURE FOR THE PRODUCTION OF A SEPARATOR MATERIAL FOR ALKALINE ACCUMULATORS

CERAMIC DIAPHRAGM ON BASIS POLYMERODER NATURAL FIBERS OF AN EXHIBITING SUBSTRATE, PROCEDURE FOR THEIR PRODUCTION AND USE

ELECTRICAL SEPARATOR, PROCEDURE FOR ITS PRODUCTION AND USE

Tetragonal zirconium oxide fiber or - textilie

ELECTRO-CHEMICAL CELL AND PROCEDURE FOR YOUR PRODUCTION

RESIN IMPREGNATED WEB

SHAPED ARTICLES FROM NYLON-4

LEAD-ACID BATTERY WITH ULTRA THIN PLATES

SEPARATOR FOR ORGANIC ELECTROLYTE BATTERY, PROCESS FOR PRODUCING THE SAME AND ORGANIC ELECTROLYTE BATTERY INCLUDING THE SEPARATOR

Methods of producing sulfate salts of cations from heteroatomic compounds and dialkyl sulfates and uses thereof

Methods of preparing sulfate salts of heteroatomic compounds using dialkyl sulfates as a primary reactant are disclosed. Also disclosed are methods of making ionic liquids from the sulfate salts of the heteroatomic compound, and electrochemical cells comprising the ionic liquids.

BATTERY SEPARATOR

Asymmetric supercapacitor device with extended capability

Impregnated separator for electrochemical cell and method of making same

Laminated multilayer separator for lead-acid batteries

Electric separator comprising a shut-down mechanism, method for the production thereof and its use in lithium batteries

Lithium accumulator and the method of producing thereof

Method of preparing electrode assemblies

Provided herein a method of preparing electrode assemblies for lithium-ion batteries. The method disclosed herein comprises a step of pre-drying separator in the battery manufacturing process before the stacking step, thereby significantly lowering the water content of the separator. Therefore, separators can be used to prepare electrode assemblies regardless of conditions under which they are stored or transported. In addition, the peeling strength between the porous base material and protective porous layer is largely unaffected by the drying process disclosed herein.

ELECTRIC BATTERY SEPARATOR

ELECTRIC BATTERY SEPARATOR

LITHIUM ACCUMULATOR AND METHOD OF PRODUCING THEREOF

A lithium accumulator including at least two three-dimensional electrodes separated by a separator and encased together with an electrolyte, comprising a non-aqueous solution of a lithium salt in an organic polar solvent, into an accumulator body wherein the two electrodes have a minimum thickness of 0.5 mm each, of which at least one electrode comprises a homogeneous, compressed mixture of an electron conductive component and an active material, capable to absorb and extract lithium in the presence of electrolyte, wherein the porosity of the pressed electrodes is 25 to 90 %, the active material has morphology of hollow spheres with a wall thickness of maximum 10 micrometers, or morphology of aggregates or agglomerates of maximum 30 micrometers in size, while the separator consists of a highly porous electrically insulating ceramic material with open pores and porosity from 30 to 95 %.

POLYPROPYLENE SEPARATOR FOR USE IN ALKALINE STORAGE BATTERIES AND PROCESS FOR MAKING SAME

PD-77347 IMPROVED POLYPROPYLENE SEPARATOR Scott A. Verzwyvelt FOR USE IN ALKALINE STORAGE BATTERIES AND PROCESS FOR MAKING SAME Intrinsically nonwettable polypropylene battery separators are rendered wettable by treating them with polybenzimidazole. Polybenzimidazole (PBI) treated polypropylene (PP) separators exhibited excellent thermal and chemical stabilities, show excellent electrolyte retention, and are gas permeable.

FLAT-PACK BATTERY SEPARATOR

A novel battery separator for a flat-pack or planar battery is disclosed wherein a nonwoven fabric is disposed on and across a plastic frame or grid, the outer edges of the fabric being disposed on said plastic frame are of extremely low fiber density and being oriented predominantly in a direction normal to each side of the frames so as to facilitate the more complete thermal pressurized bonding of a stack of separators and similarly electrodes by a sealing of the outer edges of the respective plastic frames. A more complete seal is thus formed insuring against the leaking or escaping of the liquid electrolyte contained therein.

ASBESTOS DIAPHRAGMS FOR ELECTROCHEMICAL CELLS AND THE MANUFACTURE THEREOF

The invention relates to a method for the manufacture of diaphragms for electrochemical cells by impregnating asbestos paper with an organic plastic, and has as its principal object the development of such a method in a manner such that asbestos diaphragms which have high mechanical strength and are also cost-effective can be manufactured in efficient production. According to the invention, it is provided for this purpose to treat asbestos paper made by extrusion with a solution of polyvinylchloride or polysulfone in an organic solvent. The diaphragms prepared by the method according to the invention are particularly suitable as cover layers in in fuel cells with an alkaline electrolytc.

FUEL CELL

A fuel cell comprising a pair of gas diffusion electrodes, an electrolyte retaining matrix disposed between said gas diffusion electrodes, and a phosphoric acid electrolyte disposed within said matrix, characterized by using as matrix that comprising one or more metal oxides having electronic insulation and insolubility in phosphoric acid and a binder is excellent in phosphoric acid retaining ability and can be used for a long period of time without degradation of the performance of fuel cell.

NONWOVEN THERMOPLASTIC FABRIC SEPARATOR FOR ELECTROCHEMICAL BATTERIES AND THE METHOD OF MAKING SAME

HIGH RATED SEALED LEAD-ACID BATTERY WITH ULTRATHIN PLATES

A normally sealed starved electrolyte recombinant leadacid cell of high discharge rate capability whose plates have a thickness from about 0.007 to about 0.027 inches, and whose grids are formed of high hydrogen overvoltage lead with a thickness of from about .005 inches to no more than .019 inches, with an inter-plate spacing of typically from about 0.005 to about 0.020 inches.

CONDUCTIVE BIPOLAR BATTERY PLATE AND ASSEMBLY METHOD

A conductive bipolar battery plate and method of assembly of same. The bipolar battery plate includes an electrically conductive silicon wafer; a first battery electrode located on a first surface of the electrically conductive silicon wafer; and a second battery electrode located on a surface of the electrically conductive silicon wafer opposite the first surface, the second electrode having a polarity opposite the first battery electrode and including a layer of carbon. The bipolar battery provides a lead-acid battery formed of one or more very thin planar battery electrodes having active mass disposed on a very thin silicon substrate.

SMALL PORE SIZE NONWOVEN MAT WITH HYDROPHILIC/ACID RESISTANT FILLER USED IN LEAD ACID BATTERIES AND APPLICATIONS THEREFOR

A nonwoven fiber mat includes between 10% and 50% by weight of a plurality of first glass fibers having an average diameter of less than 5 µm and between 50% and 90% by weight of a plurality of second glass fibers having an average diameter of greater than 6 µm. The nonwoven fiber mat also includes an acid resistant binder that binds the first and second glass fibers together. The nonwoven fiber mat has an average pore size of between 1 and 100 µm and exhibits an air permeability of below 100 cubic feet per minute per square foot (cfm/ft2) as measured by the Frazier test at 125Pa according to ASTM Standard Method D737.

BI-FUNCTIONAL NONWOVEN MAT USED IN AGM LEAD-ACID BATTERIES

Exemplary methods of producing a battery may include positioning a first cell half including a first electrode within a battery casing. The first cell half may include a first electrode material and a first nonwoven material about or coupled with the first electrode. The method may also include positioning a second cell half including a second electrode within the battery casing proximate to and in contact with the first cell half. The second cell half may include a second electrode material and a second nonwoven material about or coupled with the second electrode.

LEAD-ACID BATTERY SYSTEMS AND METHODS

A lead-acid battery includes a first electrode with a first grid, and a first mixture pasted onto the first grid. The first mixture includes a first plate material with acid resistant glass fibers that resist shedding of the first plate material during operation of the lead-acid battery.

CELLULOSE BASED FUNCTIONAL COMPOSITES, ENERGY STORAGE DEVICES AND MANUFACTURING METHODS THEREOF

Document discloses new technologies for utilizing cellulose based materials in composites and electrically functionalised structures,such as energy storage devices. The object of the invention is achieved by means of high consistency fibrillated cellulose with at least one functional additive. This high consistency mixture is processed to form the composite structure having a shape and then dried or let to dry.

WALL FOR SEPARATING ELECTROLYTES FOR THE SELECTIVE TRANSFER OF CATIONS THROUGH THE WALL, AND ASSOCIATED MANUFACTURING METHOD AND TRANSFER METHOD

Une paroi de séparation d' électrolytes comporte une couche active (22) d'un matériau apte à développer des réactions d' intercalation et de désintercalation pour le transfert sélectif de cations à travers la paroi et une couche de support (21) dans un matériau poreux servant de support à la couche active (22). Un procédé de transfert sélectif de cations utilise une telle paroi de transfert (2). Selon un procédé de fabrication d'une telle paroi de transfert (2), on prépare une solution comprenant un matériau actif sous forme de poudre, un liant et un solvant, puis on enduit la surface d'une couche de support (21) en matériau poreux avec ladite solution et on fait évaporer le solvant.

Acid-lead battery electrode comprising a network of pores passing therethrough, and production method

A structure including a network of parallel, homogeneous pores extending through the structure, and an outer frame around the lateral faces of the structure. The structure and the frame are made of carbon. The electrode is covered by a layer based on lead. The pores are filled with an active material based on lead.

Cable-Type Secondary Battery

Provided is a cable-type secondary battery including at least one anode extending longitudinally and having a horizontal cross section of a predetermined shape, a first electrolyte layer surrounding the anode and serving as an ion channel, at least one cathode extending longitudinally and having a horizontal cross section of a predetermined shape, the anode and the cathode arranged in parallel, a second electrolyte layer serving as an ion channel commonly surrounding the anode and the cathode, and a protection coating surrounding the second electrolyte layer. The cable-type secondary battery has free shape adaptation due to its linearity and flexibility. Introduction of the electrolyte layer on the electrode prevents a short circuit. The presence of a plurality of electrodes leads to an increased contact area therebetween and consequently a high battery rate. By adjusting the number of the anodes and the cathodes, it is easy to control the capacity balance therebetween.

Method For Manufacturing Separator Including Porous Coating Layers, Separator Manufactured By The Method And Electrochemical Device Including The Separator

Disclosed is a method for manufacturing a separator. The method includes (S1) preparing a slurry containing inorganic particles dispersed therein and a solution of a binder polymer in a solvent, and coating the slurry on at least one surface of a porous substrate to form a first porous coating layer, and (S2) electroprocessing a polymer solution on the outer surface of the first porous coating layer to form a second porous coating layer. The first porous coating layer formed on at least one surface of the porous substrate is composed of a highly thermally stable inorganic material to suppress short-circuiting between an anode and a cathode even when an electrochemical device is overheated. The second porous coating layer formed by electroprocessing improves the bindability of the separator to other base materials of the electrodes.

Sodium ion battery

Disclosed is a sodium ion battery comprising a positive electrode, a negative electrode, and a sodium ion nonaqueous electrolyte, wherein the negative electrode comprises a negative electrode active material and a negative electrode current collector made of aluminum or aluminum alloy. Also disclosed is use of the negative electrode current collector made of aluminum or aluminum alloy as a negative electrode current collector of a sodium ion secondary battery.

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.

Secondary battery

Disclosed are a secondary battery including an electrode assembly which includes a first electrode plate and a second electrode plate arranged as a stack, and a separator interposed between the first electrode plate and the second electrode plate, the first electrode plate including a first active material coating part formed by coating a base with a first active material and a first non-coating part, the second electrode plate including the second active material coating part formed by coating a base with a second active material and a second non-coating part, and the first non-coating part including an insulating member in a portion corresponding to the second electrode plate.

Photoelectric conversion element, method of manufacutring photoelectric conversion element, electrolyte layer for photoelectric conversion element, and electronic apparatus

A photoelectric conversion element has a structure in which an electrolyte layer composed of a porous film containing an electrolyte solution is provided between a porous photoelectrode and a counter electrode.

Battery Separator With Improved Oxidation Stability

The invention relates to a thermoplastic polymer-based battery separator, which contains a compound of formula R (OR 1 ) n (COOM x+ 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, R 1 represents H, —(CH 2 ) k COOM x+ 1/x or —(CH 2 ) k —SO 3 M x+ 1/x , whereby k stands for 1 or 2, M represents an alkali or earth alkaline metal ion, H + or NH 4 + , 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.

Cell separator manufacturing method

The present invention provides a method of manufacturing a cell separator in which a protective layer mainly composed of at least one type of granular ceramic is formed on a surface of a porous sheet base material. The method includes preparation of a water-based paste obtained by mixing a solid material containing the granular ceramic and a binder with an aqueous solvent to which at least one type of alcohol has been added, and formation of a protective layer in a state in which the alcohol has been eliminated by coating the prepared water-based paste onto a surface of the porous sheet base material, and further includes formation of the protective layer so that the solids content in the protective layer is higher than the solids content in the water-based paste by an amount of elimination of the alcohol, and is at least 55% by mass.

Surface modified glass fibers

Compositions including glass fibers with a high surface atomic percentage of oxygen bonded to silicon wherein the fibers form at least part of a battery separator or other battery component.

Battery system containing phase change material-containing capsules in interior configuration thereof

Provided is a battery system in which an interior part of a battery structure includes phase-change particles including a capsule and phase-change materials. The phase-change materials have a high latent heat of phase change at a specific temperature, and are encapsulated in the capsule. The capsule is made of an inert material. The battery system in accordance with the present invention can prolong a service life of the battery by inhibiting temperature elevation inside the battery under normal operating conditions without substantial effects on size, shape and performance of the battery, and further, can inhibit the risk of explosion resulting from a sharp increase in temperature inside the battery under abnormal operating conditions, thereby contributing to battery safety.

Battery

An exemplary battery is provided in the present invention. The battery includes a current collector, a positive-electrode structure, a separation structure, a negative-electrode structure and a housing. The positive-electrode structure, the separation structure, the negative-electrode structure are encircled in sequence inside of the housing. At least one of the negative-electrode structure and the positive-electrode structure comprises chlorophyll. The battery of the present invention could store hydrogen by the chlorophyll of the positive-electrode structure and/or the negative-electrode structure to generate electricity.

Method for producing alkaline primary battery

A method for producing an alkaline primary battery includes: (1) forming a cylindrical positive electrode having a hollow; (2) inserting a cylindrical separator with a bottom into the hollow of the positive electrode, the separator including: a wound cylindrical portion; and a bottom portion that is substantially U-shaped in cross-section, the bottom portion covering an opening of the cylindrical portion at a lower end thereof and having an upstanding portion that extends along a lower outer face of the cylindrical portion; and (3) injecting an electrolyte into the separator. The amount of the electrolyte injected into the separator in the step (3) is sufficient to impregnate the positive electrode and the separator and immerse a lower end of the cylindrical portion of the separator in the electrolyte remaining in the separator, thereby bringing the lower end of the cylindrical portion into contact with the upstanding portion.

Porous membrane for secondary battery and secondary battery

Disclosed is a porous membrane for a secondary battery, which has further improved output characteristics and long-term cycle characteristics when compared with conventional porous membranes. The porous membrane for a secondary battery is used for a lithium ion secondary battery or the like. Specifically disclosed is a porous membrane for a secondary battery, which contains polymer particles A that have a number average particle diameter of 0.4 μm or more but less than 10 μm and a glass transition temperature of 65° C. or more and polymer particles B that have a number average particle diameter of 0.04 μm or more but less than 0.3 μm and a glass transition temperature of 15° C. or less. It is preferable that the polymer particles B have a crystallization degree of 40% or less and a main chain structure that is composed of a saturated structure.

Microporous membranes, methods for making such membranes, and the use of such membranes as battery separator film

The invention relates to microporous membranes having one or more layers comprising polymer and inorganic molecules. The invention also relates to methods for producing these membranes, and the use of these membranes as battery separator film.

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

The present disclosure relates to a separator and a lithium secondary battery including the same. The separator comprises a polyethylene-based powder or a polypropylene-based powder provided on or in the base film, wherein the polyethylene-based powder or the polypropylene-based powder is different from the base film.

Heat-resistant and high-tenacity ultrafine fibrous separation layer, method for manufacturing same, and secondary cell using same

Provided is an ultrafine fibrous porous separator with heat resistance and high-strength and a manufacturing method thereof, which enables mass-production of a heat-resistant and high-strength ultrafine fibrous separator by using an air-electrospinning (AES) method, and to a secondary battery using the same. The method of manufacturing a heat-resistant and high-strength ultrafine fibrous porous separator includes the steps of: air-electrospinning a mixed solution of 50 to 70 wt % of a heat-resistant, polymer material and 30 to 50 wt % of a swelling polymer material, to thereby form a porous web of a heat-resistant ultrafine fiber in which the heat-resistant polymer material and the swelling polymer material are consolidated in an ultrafine fibrous form; performing drying to control a solvent and moisture that remain on the surface of the porous web; and performing thermal compression on the dried porous web at a temperature of between 170° C. and 210° C. so as to obtain the separator.

Post Processing Filled Microporous Membranes

A porous membrane may be manufactured with a high content of filler material and a polymer binder. After forming the membrane, the membrane may be post processed to reform the polymer binder into a stronger yet still porous membrane. The post processing may include bringing the membrane above the melt temperature of the polymer or by immersing the membrane in a solvent. Photomicrographs show that the structure may change, yet the performance of the material in batteries and other electrochemical cells may remain the same or even improve.

Curable fiberglass binder comprising a polyacetal or polyketal

A curable formaldehyde-free binding composition for use with fiberglass is provided. Such curable composition comprises an acid-catalyzed reaction product of an aldehyde or ketone with a multihydric alcohol. When heated, the composition forms polyacetal or polyketal that undergoes curing to form a water-insoluble resin binder which exhibits good adhesion to glass. In a preferred embodiment, maleic anhydride initially serves as a catalyst and subsequently enters into a cross-linking reaction during curing to form a poly(ester-acetal). Also, in a preferred embodiment, the fiberglass is in the form of building insulation. In other embodiments the product can be a microglass-based substrate for use in a printed circuit board, battery separator, filter stock, or reinforcement scrim.

Cell

A cell in which thermal welding of a laminate packaging is performed so that the thickness of a thermal welded portion including an electrode terminal is larger than that of a thermal welded portion including no electrode terminal.

Electrolytic solution for secondary battery, secondary battery, electronic appliance, power tool, electric vehicle, and electric power storage system

A secondary battery includes: a positive electrode, a negative electrode, and an electrolytic solution containing a nitrogen-containing aromatic compound, wherein the nitrogen-containing compound contains an aromatic skeleton containing one or two or more aromatic rings and one or two or more nitrogen-containing functional groups bonded to the one or two or more aromatic rings and represented by the following formula (1) (YX═N—  (1) wherein X represents C or P; Y represents a group constituted of one kind or two or more kinds of elements selected from the group consisting of H, C, N, O, S, F, Cl, Br, and I, provided that arbitrary two or more of X and Y may be bonded to each other to form a ring structure; and z is 2 or 3.

Single-layer lithium ion battery separator

The present invention relates to a microporous polymeric battery separator comprised of a single layer of enmeshed microfibers and nanofibers. Such a separator accords the ability to attune the porosity and pore size to any desired level through a single nonwoven fabric. As a result, the inventive separator permits a high strength material with low porosity and low pore size to levels unattained. The combination of polymeric nanofibers within a polymeric microfiber matrix and/or onto such a substrate through high shear processing provides such benefits, as well. The separator, a battery including such a separator, the method of manufacturing such a separator, and the method of utilizing such a separator within a battery device, are all encompassed within this invention.

Ionic liquid containing sulfonate ions

Embodiments are related to ionic liquids and more specifically to ionic liquids used in electrochemical metal-air cells in which the ionic liquid includes sulfonate ions as the anion.

Lithium ion battery

The present disclosure relates to a lithium ion battery. The lithium ion battery cathode includes a cathode, a separator, an anode, and a nonaqueous electrolyte solution. The cathode includes a cathode current collector and a cathode material layer disposed on a surface of the cathode current collector. The cathode material layer comprises cathode active material, conductive agent, and adhesive uniformly mixed together. The cathode active material comprises cathode active material particles and AlPO 4 layers coated on surfaces of the cathode active material particles. The separator includes a porous membrane and a protective layer coated on a surface of the porous membrane. The protective layer prevents the separator from being melted during charging or discharging of the lithium ion battery.

Protected lithium electrodes having a polymer electrolyte interlayer and battery cells thereof

Active metal and active metal intercalation electrode structures and battery cells having ionically conductive protective architecture including an active metal (e.g., lithium) conductive impervious layer separated from the electrode (anode) by a porous separator impregnated with a non-aqueous electrolyte (anolyte). This protective architecture prevents the active metal from deleterious reaction with the environment on the other (cathode) side of the impervious layer, which may include aqueous or non-aqueous liquid electrolytes (catholytes) and/or a variety electrochemically active materials, including liquid, solid and gaseous oxidizers. Safety additives and designs that facilitate manufacture are also provided.

Separator And Electrochemical Device Comprising The Same

A separator may include (A) a porous substrate having pores, and (B) a porous coating layer formed on at least one surface of the porous substrate and made from a mixture of inorganic particles and a binder polymer, and the binder polymer may contain a copolymer of (a) a first monomer unit with at least one of an amine group and an amide group at a side chain, and (b) a second monomer unit of (meth)acrylate with an alkyl group having 1 to 14 carbon atoms. The porous coating layer of the separator may have a high packing density, thereby easily forming a thin film battery without hindering safety, and may have good adhesive strength with the porous substrate, thereby preventing detachment of the inorganic particles in the porous coating layer during assembly of an electrochemical device.

Sheet-like fiber structure, and battery, heat insulation material, waterproof sheet, scaffold for cell culture, and holding material each using the sheet-like fiber structure

A sheet-like fiber structure including a plurality of fibers made of amorphous silicon dioxide. The plurality of fibers are intertwined with each other and thus connected to each other, thereby forming void portions. Consequently, the sheet-like fiber structure has not only liquid permeability and voltage resistance but also high heat resistance and chemical resistance. The sheet-like fiber structure is therefore applicable to a separator for preventing a short circuit between electrodes, a scaffold for cell culture, to holding a biomolecule, or the like.

Battery components with leachable metal ions and uses thereof

The disclosure describes compositions and methods for producing a change in the voltage at which hydrogen gas is produced in a lead acid battery. The compositions and methods relate to producing a concentration of one or more metal ions in the lead acid battery electrolyte.

Nonaqueous electrolyte battery and battery pack

According to one embodiment, a nonaqueous electrolyte battery includes a nonaqueous electrolyte, a positive electrode, a negative electrode and a separator. The nonaqueous electrolyte includes an asymmetric sulfone-based compound and a symmetric sulfone-based compound. The positive electrode includes a composite oxide represented by Li 1−x Mn 1.5−y Ni 0.5−z M y+z O 4 ( 0 ≦x≦ 1, 0 ≦y+z≦ 0.15 , and M is at least one kind of element selected from the group consisting of Mg, Al, Ti, Fe, Co, Ni, Cu, Zn, Ga, Nb, Sn, Zr and Ta). The negative electrode includes a Ti-containing oxide which is capable of absorbing and releasing lithium. The separator includes a nonwoven fabric.

Electricity supply system and electricity supply element thereof

An electricity supply system and electricity supply element thereof is provided. The electricity supply system is made of a plurality of electricity supply elements by stacking or rolling. Each electricity supply element includes a substrate, two current collector layers and two active material layers. The substrate has a plurality of holes and the current collector layers, the active material layers are disposed on two sides respectively. Therefore, the ion migration is permitted by the holes and the electricity is outputted by the current collector layers. Hence, by this new structure of the electricity supply element, the resistance is decreased.

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.

Lithium-sulphur battery

The invention relates to a lithium-sulphur battery, comprising (a) a first electrode comprising lithium, (b) a second electrode comprising sulphur and/or a lithium sulphide, (c) a separator between the electrodes (a) and (b), (d) an electrolyte in the separator, characterised in that the separator comprises a non-woven fabric made of polymer fibres.

Electrolyte separation wall for the selective transfer of cations through the wall, manufacturing process and transfer process

An electrolyte separation wall includes an active layer of a material capable of developing intercalation and deintercalation reactions for the selective transfer of cations through the wall and a support layer made of a porous material acting as support for the active layer. A cation selective transfer process uses such a transfer wall. According to a manufacturing process of such a transfer wall, a solution including an active material in powder form, a binder and a solvent are prepared, then the surface of a support layer made of porous material is coated with the solution and the solvent is evaporated.

Electricity supply element and ceramic separator thereof

An electricity supply element and the ceramic separator thereof are provided. The ceramic separator is adapted to separate two electrode layers of the electricity supply element for permitting ion migration and electrical separation. The ceramic separator is made of ceramic particulates and the adhesive. The adhesive employs dual binder system, which includes linear polymer and cross-linking polymer. The adhesion and heat tolerance are enhanced by the characteristic of the two type of polymers. The respective position of the two electrode layers are maintained during high operation temperature to improve the stability, and battery performance. Also, the ceramic separator enhances the ion conductivity and reduces the possibility of the micro-short to increase practical utilization.

Porous membrane for secondary battery, production method therefor, and use thereof

A porous membrane for a secondary battery including non-electroconductive particles and a binder for a porous membrane, wherein the non-electroconductive particles are particles of a polymer, an arithmetic mean value of a shape factor of the non-electroconductive particles is 1.05 to 1.60, a variation coefficient of the shape factor is 16% or less, and a variation coefficient of a particle diameter of the non-electroconductive particles is 26% or less; manufacturing method thereof; and an electrode, a separator and a battery having the same.

Separator and nonaqueous electrolytic secondary battery including the same

A separator for a battery according to the present disclosure (present separator) is held between a positive electrode and a negative electrode of the battery and includes an inorganic layer formation part and an inorganic layer non-formation part formed at an end. In addition, a nonaqueous electrolytic secondary battery according to the present disclosure includes: an electrode assembly including: a positive electrode having an active material layer including a positive electrode active material and a positive electrode current collector foil exposure part; a negative electrode having an active material layer including a negative electrode active material and a negative electrode current collector foil exposure part; and the present separator held between the positive electrode and the negative electrode; a case for housing the electrode assembly; and an electrolyte held between the positive electrode and the negative electrode.

Hybrid porous materials and manufacturing methods and uses thereof

The present disclosure provides a hybrid porous material including a porous material including a microporous polymer film or a non-woven fabric, wherein the porous material has an upper surface and a lower surface; and a continuous inorganic coating covering the upper surface, the lower surface, and surfaces of pores within the porous material. The present disclosure also provides a manufacturing method for the hybrid porous material and an energy storage device including the same.

Separator

The present invention provides an inexpensive separator having excellent heat resistance and causing no contraction even in a high temperature circumstance nor short circuit while maintaining a high porosity. This separator is characterized in that the flat surfaces of scaly particles are oriented in the extending direction of the surface of the separator, the scaly particles being arranged in layers in the thickness direction of the separator, and fibrous materials are interposed among the scaly particles.

Automobile battery and method for manufacturing pole plates

A battery includes anode plates, formed as a mesh by forming cuts in series on a lead plate strip rolled into a uniform thickness, for storing electricity in a chemically reactive state by expansion processing, cathode plates formed as a mesh for storing electricity in a chemically reactive state, separators between the anode and cathode plates for electrical insulation, mechanical separation, and the impregnation of an AGM with electrolyte, such that the chemical reaction for storing electricity is facilitated and the pressure in the cell remains constant, upper and lower cases made of polypropylene and containing the anode plates, cathode plates, separators, and electrolyte in a plurality of mutually separate cells, and a cap coupled into the screw holes formed in the cell units in the upper case, for discharging gas generated during charge and discharge when the pressure of the gas is over a permissible level.

Nickel-zinc rechargeable pencil battery

A rechargeable pencil battery has a hollow cylindrical positive electrode including nickel hydroxide; a gelled negative electrode comprising at least one of zinc and a zinc compound; a separator interposed between the hollow cylindrical positive electrode and the gelled negative electrode; and a negative electrode current collector inserted into the gelled negative electrode. Rechargeable batteries of the invention are capable of between about 50 and 1000 cycles from a fully charge state to a fully discharged state at a discharge rates of about 0.5 C or greater, in some embodiments about 1 C or greater. Batteries of the invention have a ratio of length to diameter of between about 1.5:1 and about 20:1, and therefore can be longer than typical commercially available batteries but also include batteries of commercial sizes e.g. AAAA, AAA, AA, C, D, sub-C and the like.

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.

Composite separator for electrochemical cell and method for its manufacture

An electrode/separator assembly for use in an electrochemical cell includes a porous composite layer having a total thickness in the range of about 4 μm to about 50 μm comprising inorganic particles having an average aggregate particle size in the range of about 0.5 μm to about 6 μm in an electrochemically stable polymer matrix.

Apparatus and Associated Methods

An apparatus including at least one substrate, the at least one substrate including first and second electrodes and configured to form a sealed chamber with the first and second electrodes contained therein and facing one another, the sealed chamber including electrolyte in the space between the first and second electrodes, wherein the at least one substrate is configured to undergo reversible stretching whilst still forming the sealed chamber containing the electrolyte.

Li-air batteries having ether-based electrolytes

A lithium-air battery includes a cathode including a porous active carbon material, a separator, an anode including lithium, and an electrolyte including a lithium salt and polyalkylene glycol ether, where the porous active carbon material is free of a metal-based catalyst.

Lithium secondary battery

Provided is a lithium secondary battery having high stability and high energy density. A lithium secondary battery includes a positive electrode and a negative electrode wherein the positive electrode includes one or more positive electrode active materials selected from LiFe x M y PO 4 , Li 2 Fe x M y P 2 O 7 , Li 3 Fe x M y (PO 4 ) 3 , and LiFe x M y O 2 , and coated on at least one surface of a current collector, where M is at least one selected from cobalt (Co), nickel (Ni), manganese (Mn), (Al), (Sn), and (Sb), 0<x≦1, and 0≦y≦1, the negative electrode includes one or more negative electrode active materials selected from Li 4 (Ti p N q ) 5 O 12 and Li 2 (Ti p N q ) 3 O 7 , and coated on at least one surface of a current collector, where N is at least one selected from Co, Ni, Mn, Al, Sn, and Sb, 0<p≦1, and 0≦q<1, and the electrolyte includes a lithium (Li) ion-containing aqueous solution.

Porous Separator Using Cellulose Nanofibrils and Method for Preparing the Same

A method of preparing a porous separator using cellulose nanofibrils is provided. The method includes preparing a sheet using a solution including cellulose nanofibrils and a pore-forming resin and removing the pore-forming resin included in the sheet to form micropores.

Melt-blown nonwoven fabric, and production process and apparatus for the same

It is an object of the present invention to provide a stable production process for a melt-blown nonwoven fabric comprising thin fibers and having extremely few thick fibers [number of fusion-bonded fibers] formed by fusion bonding of thermoplastic resin fibers to one another, and an apparatus for the same. The present invention relates to a melt-blown nonwoven fabric comprising polyolefin fibers and having (i) a mean fiber diameter of not more than 2.0 μm, (ii) a fiber diameter distribution CV value of not more than 60%, and (iii) 15 or less fusion-bonded fibers based on 100 fibers; a production process for a melt-blown nonwoven fabric characterized by feeding cooling air of not higher than 30° C. from both side surfaces of outlets of slits 31 from which high-temperature high-velocity air is gushed out and thereby cooling the spun molten resin; and a production apparatus for the same.

Separator for non-aqueous electrolyte battery, and non-aqueous electrolyte battery

The present invention provides a separator for a non-aqueous electrolyte battery that includes a porous base material including a polyolefin and a heat-resistant porous layer provided on at least one surface of the porous base material and including a heat-resistant resin, in which when a thermomechanical analysis measurement has been performed by applying a constant load, the separator for a non-aqueous electrolyte battery satisfies the following conditions (i) and (ii): (i) at least one shrinkage peak appears in a temperature range of from 130 to 155° C. in a displacement waveform representing shrinkage displacement with respect to temperature; and (ii) an extension rate in a range from a shrinkage peak appearance temperature T 1 to (T 1 +20)° C. is less than 0.5%/° C.

Slurry for secondary battery porous membranes, secondary battery porous membrane, secondary battery electrode, secondary battery separator, secondary battery, and method for producing secondary battery porous membrane

To provide a secondary battery porous membrane which is produced using a slurry for secondary battery porous membranes having excellent coatability and excellent dispersibility of insulating inorganic particles and is capable of improving the cycle characteristics of a secondary battery that is obtained using the secondary battery porous membrane, said secondary battery porous membrane having high flexibility and low water content and being capable of preventing particle fall-off. [Solution] A slurry for secondary battery porous membranes of the present invention is characterized by containing: insulating inorganic particles, each of which has a surface functional group that is selected from the group consisting of an amino group, an epoxy group; a mercapto group and an isocyanate group; a binder which has a reactive group that is crosslinkable with the surface functional group; and a solvent.

Separator for power storage device and power storage device

Provide is a separator for a power storage device, which reliably prevents short circuits between positive and negative electrode layers while maintaining the permeating ions function, and effectively suppresses shrinkage, and a power storage device using the separator. The separator is composed of a composite material including inorganic microparticles and an organic binder, the composite material has a pigment volume concentration of 55% or more, and the inorganic microparticles have an average particle size in the range of 0.2 to 3.0 μm, and a general particle shape index in the range of 0.50 to 0.85. The composite material can have a pigment volume concentration in the range of 55 to 80%, or 55 to 65%.

Electrochemical energy accumulator

A glass-based material is disclosed, which is suitable for the production of a separator for an electrochemical energy accumulator, in particular for a lithium ion accumulator, wherein the glass-based material comprises at least the following constituents (in wt.-% based on oxide): SiO 2 +F+P 2 O 5 20-95; Al 2 O 3 0.5-30, wherein the density is less than 3.7 g/cm 3 .

Method for manufacturing separator, separator manufactured therefrom, and electrochemical device comprising the same

The present invention provides a method for manufacturing a separator, comprising the steps of (S1) preparing a porous planar substrate having multiple pores; (S2) coating a coating solution obtained by dissolving a binder polymer in a solvent and dispersing inoganic particles therein on the porous substrate to form a porous coating layer and drying the porous coating layer; and (S3) applying a binder solution on the surface of the dried porous coating layer to form an adhesive layer, wherein the binder solution has a surface energy of at least 10 mN/m higher than that of the porous coating layer and a contact angle of the binder solution to the surface of the porous coating layer maintained at 80° or more for 30 seconds. In accordance with the present invention, a separator capable of obtaining sufficient adhesion force with minimizing the amount of an adhesive used for the adhesion with an electrode, and minimizing the deterioration of battery performances can be easily manufactured.

Separator for electric storage device and electric storage device

The object of an exemplary embodiment of the invention is to provide a separator for an electric storage device which has small thermal shrinkage under high-temperature environment, and in which the increase of the battery temperature can be suppressed. An exemplary embodiment of the invention is a separator for an electric storage device, which comprises a cellulose derivative represented by a prescribed formula. The separator for an electric storage device can be obtained, for example, by treating a cellulose separator containing cellulose with a phosphate or a phosphite.

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.

Embossed separators, batteries and methods

An improved, new, modified, or more robust embossed battery separator for a storage battery, a method for its production, an envelope embossed separator, batteries including the embossed separators and/or envelopes, and/or related methods for the production and/or use of the embossed separators, embossed envelopes, and/or batteries including such embossed separators and/or envelopes.

Heat sealing separators for nickel zinc cells

Embodiments are described in terms of selective methods of sealing separators and jellyroll electrode assemblies and cells made using such methods. More particularly, methods of selectively heat sealing separators to encapsulate one of two electrodes for nickel-zinc rechargeable cells having jellyroll assemblies are described. Selective heat sealing may be applied to both ends of a jellyroll electrode assembly in order to selectively seal one of two electrodes on each end of the jellyroll.

Bipolar ion exchange membranes for batteries and other electrochemical devices

A bipolar ion exchange membrane suitable for use in ZnBr batteries, LiBr batteries, and electrolyzers. The membrane is produced by hot pressing or extruding a mixture of an anion exchange ionomer powder, a cation exchange ionomer powder, and a non-porous polymer powder.

Advanced electrolyte systems and their use in energy storage devices

An ultracapacitor that includes an energy storage cell immersed in an advanced electrolyte system and disposed within a hermetically sealed housing, the cell electrically coupled to a positive contact and a negative contact, wherein the ultracapacitor is configured to output electrical energy within a temperature range between about −40 degrees Celsius to about 210 degrees Celsius. Methods of fabrication and use are provided.

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.

Ion-conducting composite electrolyte comprising path-engineered particles

An ion-conducting composite electrolyte is provided comprising path-engineered ion-conducting ceramic electrolyte particles and a solid polymeric matrix. The path-engineered particles are characterized by an anisotropic crystalline structure and the ionic conductivity of the crystalline structure in a preferred conductivity direction H associated with one of the crystal planes of the path-engineered particle is larger than the ionic conductivity of the crystalline structure in a reduced conductivity direction L associated with another of the crystal planes of the path-engineered particle. The path-engineered particles are sized and positioned in the polymeric matrix such that a majority of the path-engineered particles breach both of the opposite major faces of the matrix body and are oriented in the polymeric matrix such that the preferred conductivity direction H is more closely aligned with a minimum path length spanning a thickness of the matrix body than is the reduced conductivity direction L.

Process for producing rechargeable electrochemical metal-oxygen cells

The invention relates to a process for producing a rechargeable electrochemical metal-oxygen cell, comprising at least one positive electrode, at least one negative metal-comprising electrode and at least one separator having two sides for separating the positive and negative electrodes, wherein, in one of the process steps, at least one side of the separator is coated with at least one material for forming one of the two electrodes (hereinafter referred to as electrode material) or at least one side of at least one of the two electrodes is coated with at least one material for forming the separator (hereinafter referred to as separator material) to form a separator-electrode assembly.

Lithium secondary battery of high power property with improved high power density

Disclosed is a high-output lithium secondary battery including: a cathode including a cathode active material having an average particle diameter (with respect to capacity) of 0.03 to 0.1 μm/mAh and a layered structure; an anode including crystalline graphite and amorphous carbon as anode active materials, wherein the amount of the amorphous carbon is between 40 and 100 wt % based on the total weight of the anode active materials; and a separator.

Lithium secondary battery

The present invention relates to a lithium secondary battery. More specifically, according to embodiments of the present invention the lithium battery, which includes a cathode, an anode, and a separate membrane inserted between the cathode and the anode, is characterized in that the separator membrane is a polyolefin porous membrane which has an aramid coating layer; and the cathode includes a lithium metal oxide cathode active material which has an olivine-type iron phosphate lithium coating layer, or the anode includes a carbon anode active material which has a spinel-type lithium titanium oxide coating layer. The lithium secondary battery in accordance with embodiments of the present invention has excellent basic electric performance and improved stability.

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 ...

PARTITION MEMBER AND BATTERY PACK

A partition member has a thickness direction and a surface direction orthogonal to the thickness direction and partitions between unit batteries constituting an assembled battery in the thickness direction. The partition member comprises an exterior body including at least sealant resin layers and base material layers, and a liquid accommodated in the exterior body. The exterior body has a sealing portion in which the sealant resin layers are overlapped and joined in a region including an outer edge thereof. A width W (mm) of the sealing portion, a circumferential length L (mm) of the sealing portion, an average interval D (mm) between the two base material layers facing each other in the sealing portion, and a weight A (g) of the liquid satisfy Equation 1 below. 1. A partition member having a thickness direction and a surface direction orthogonal to the thickness direction and partitioning between unit batteries constituting an assembled battery in the thickness direction or between a unit battery constituting the assembled battery and a member other than the unit battery , the partition member comprising:an exterior body including at least sealant resin layers and base material layers; anda liquid accommodated in the exterior body, whereinthe exterior body has a sealing portion in which the sealant resin layers are overlapped and joined in a region including an outer edge thereof, and {'br': None, 'i': L×D', 'W×A, '()/()≤10.0\u2003\u2003Equation 1, 'a width W (mm) of the sealing portion, a circumferential length L (mm) of the sealing portion, an average interval D (mm) between the two base material layers facing each other in the sealing portion, and a weight A (g) of the liquid satisfy Equation 1 below.'}2. The partition member according to claim 1 , wherein the width W (mm) claim 1 , the average interval D (mm) claim 1 , and the weight A (g) satisfy Equation 2 below.{'br': None, 'i': 'A×D×W≥', '0.50\u2003\u2003Equation 23. The partition member according to claim ...

Microporous Polyolefin Composite Film Having Excellent Heat Resistance and Thermal Stability and Method for Manufacturing the Same

The following disclosure relates to a microporous polyolefin composite film having excellent heat resistance and thermal stability, and a method for manufacturing the same. More particularly, the present invention relates to a microporous polyolefin composite film capable of improving stability and reliability of a battery by heat sealing an edge of a microporous film provided with a coating layer that includes a polymer binder and inorganic particles, and a method for manufacturing the same.

Organic/inorganic composite porous film and electrochemical device prepared thereby

Disclosed is an organic/inorganic composite porous film comprising: (a) inorganic particles; and (b) a binder polymer coating layer formed partially or totally on surfaces of the inorganic particles, wherein the inorganic particles are interconnected among themselves and are fixed by the binder polymer, and interstitial volumes among the inorganic particles form a micropore structure. A method for manufacturing the same film and an electrochemical device including the same film are also disclosed. An electrochemical device comprising the organic/inorganic composite porous film shows improved safety and quality.

Composite electrolytes

Set forth herein are electrolyte compositions that include both organic and inorganic constituent components and which are suitable for use in rechargeable batteries. Also set forth herein are methods and systems for making and using these composite electrolytes.

Methods of making glass constructs

Manufacturing methods for making a substantially rectangular and flat glass preform for manufacturing a Li ion conducting glass separator can involve drawing the preform to a thin sheet and may involve one or more of slumping, rolling or casting the glass within a frame that defines a space filling region and therewith the shape and size of the preform. The thickness of the rectangular flat preform so formed may be about 2 mm or less. The frame may be slotted having a back surface and widthwise wall portion that define the height and width of the space filling region. The flat backing surface and surfaces of the widthwise wall portions are defined may be coated by a material that is inert in direct contact with the heated glass material, such as gold.

Heat-resistant porous separator and method for manufacturing the same

The present disclosure provides a heat-resistant porous separator. The heat-resistant porous separator includes a porous substrate and a composite coating layer coated on at least one surface of the substrate. The composite coating layer is an interpenetrating polymer network structure formed by a hydrophilic polymer and silicon dioxide. A method for manufacturing a heat-resistant porous separator is also provided herein.

Separator for lithium secondary battery, and lithium secondary battery comprising same

Provided are a separator for a lithium secondary battery including a substrate and a heat-resistance porous layer disposed on at least one surface of the substrate and including a cross-linked binder, wherein the cross-linked binder has a cross-linking structure of a compound represented by Chemical Formula 2, and a lithium secondary battery including the same.

Composite material

The present invention relates to a process for the preparation of a composite material comprising a vinylidene difluoride (VDF)-containing copolymer and an electrically non-conductive polymeric material, to a composite material obtainable via said process, to its use in electrochemical cells and to an electrochemical cell comprising said composite.

Electrode structure and secondary battery

According to one embodiment, an electrode structure is provided. The electrode structure includes an electrode and a separator. The electrode includes an active material-containing layer. The separator includes a layer provided on a main surface of the active material-containing layer. The layer includes organic fibers and a resin mass. The resin mass is in contact with a portion of the main surface of the active material-containing layer. The resin mass is integrated with a portion of the organic fibers. When a length of the resin mass is represented by a circumscribed quadrilateral of the resin mass, a length of a first side of the circumscribed quadrilateral and a length of a second side adjacent to the first side are each 10 μm or more.

Composite separator for secondary battery

Provided are a composite separator and an electrochemical device using the same. More specifically, provided is a composite separator including a coating layer for improving an adhesive property between an electrode and a separator.

Aqueous polysulfide-based electrochemical cell

An electrochemical cell and battery system including cells, each cell including a catholyte, an anolyte, and a separator disposed between the catholyte and anolyte and that is permeable to the at least one ionic species (for example, a metal cation or the hydroxide ion). The catholyte solution includes a ferricyanide, permanganate, manganate, sulfur, and/or polysulfide compound, and the anolyte includes a sulfide and/or polysulfide compound. These electrochemical couples may be embodied in various physical architectures, including static (non-flowing) architectures or in flow battery (flowing) architectures.

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.

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 the separator, the separator for a lithium secondary battery including: a polyolefin-based porous substrate; and a coating layer on at least one surface of the polyolefin-based porous substrate, wherein a coefficient of performance Q1 of the polyolefin-based porous substrate as represented by Equation 1 is greater than or equal to 1.2 (gf/nm·μm), a coefficient of performance Q2 of the polyolefin-based porous substrate as represented by Equation 2 is greater than or equal to 0.25 (gf/nm·%), and the coating layer includes a binder and inorganic particles. 3. The separator of claim 1 , wherein the polyethylene-based porous substrate has a porosity of less than 40%.4. The separator of claim 1 , wherein the polyolefin-based porous substrate has a thickness of 1 μm to 10 μm.5. The separator of claim 1 , wherein a puncture strength standardized by a thickness of the polyolefin-based porous substrate is greater than or equal to 0.4 N/μm.6. The separator of claim 1 , wherein the separator has an air permeability of less than or equal to 250 (sec/100 cc).7. The separator of claim 1 , wherein the separator has a puncture strength of greater than or equal to 350 gf.8. The separator of claim 1 , wherein the inorganic particles include AlO claim 1 , SiO claim 1 , TiO claim 1 , SnO claim 1 , CeO claim 1 , MgO claim 1 , NiO claim 1 , CaO claim 1 , GaO claim 1 , ZnO claim 1 , ZrO claim 1 , YO claim 1 , SrTiO claim 1 , BaTiO claim 1 , Mg(OH) claim 1 , boehmite claim 1 , or a combination thereof.9. The separator of claim 1 , wherein the binder:inorganic particles are included in a weight ratio of 1:1 to 1:7.10. A lithium secondary battery claim 1 , comprisinga positive electrode;a negative electrode; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the separator of between the positive electrode and the negative electrode.'} A separator for a lithium secondary ...

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 ...

Heat-resistant synthetic resin microporous film, separator for non-aqueous liquid electrolyte secondary battery, non-aqueous liquid electrolyte secondary battery, and method for producing heat-resistant synthetic resin microporous film

Provided are a heat-resistant synthetic resin microporous film having enhanced heat resistance while having reduced deterioration of mechanical strength, and a method for producing the same. Disclosed is a heat-resistant synthetic resin microporous film which includes a synthetic resin microporous film containing a synthetic resin; and a coating layer formed on at least a portion of the surface of the synthetic resin microporous film and containing a polymer of a polymerizable compound having a bifunctional or higher-functional radical polymerizable functional group, the heat-resistant synthetic resin microporous film having a surface aperture ratio of 30% to 55%, gas permeability of 50 sec/100 mL to 600 sec/100 mL, a maximum thermal shrinkage obtainable when the film is heated from 25° C. to 180° C. at a rate of temperature increase of 5° C./min, of 20% or less, and a piercing strength of 0.7 N or more.

Laminated porous film, separator for non-aqueous electrolyte secondary battery and non-aqueous electrolyte secondary battery

An object of the present invention is to provide a laminated porous film excellent in handling ability. A laminated porous film having a layer containing a polymer other than a polyolefin laminated on at least one surface of a polyolefin porous film, wherein the uplift quantity of a side perpendicular to the machine direction, when allowed to stand still for 1 hour under an environment of a temperature of 23° C. and a humidity of 50%, is 15 mm or less.

Separator for secondary battery and lithium secondary battery comprising same

The present invention relates to a separator for a secondary battery and a lithium secondary battery comprising the same, wherein the separator comprises a porous substrate and a heat-resistant porous layer positioned on at least one surface of the porous substrate, the heat-resistant porous layer comprising a first binder, a second binder, and a filler, the first binder comprising a copolymer having: a first structural unit derived from a first fluorine monomer; a second structural unit derived from a second fluorine monomer; and a third structural unit derived from a monomer comprising at least one functional group selected from a hydroxyl group, a carboxyl group, an ester group, an acid anhydride group, and a derivative thereof, the second binder comprising at least one of a vinylidene fluoride homopolymer and a vinylidene fluoride copolymer.

Iron ion trapping van der waals gripper additives for electrolyte systems in lithium-ion batteries

Electrochemical cells that cycle lithium ions and methods for suppressing or minimizing deposition of transition metal ions at negative electrodes are provided. The electrochemical cells include a positive electrode, a negative electrode, a separator disposed therebetween, and an electrolyte system including one or more lithium salts, one or more solvents, and at least one additive complexing compound. The at least one additive complexing compound includes an alkyl group having greater than or equal to 4 carbon atoms and less than or equal to 22 carbon atoms and a transition metal ion trapping group. The at least one additive compound associates with a surface of the separator via van der Waal's interactive forces and is further capable of complexing with transition metal ion within the electrochemical cell to sequester or tether the ions generated by contaminants to minimize or suppress the deposition of transition metal cations on the negative electrode.

Cell

A cell in which thermal welding of a laminate packaging is performed so that the thickness of a thermal welded portion including an electrode terminal is larger than that of a thermal welded portion including no electrode terminal.

Protective layers for electrochemical cells

Articles and methods including layers for protection of electrodes in electrochemical cells are provided. As described herein, a layer, such as a protective layer for an electrode, may comprise a plurality of particles (e.g., crystalline inorganic particles, amorphous inorganic particles). In some embodiments, at least a portion of the plurality of particles (e.g., inorganic particles) are fused to one another. For instance, in some embodiments, the layer may be formed by aerosol deposition or another suitable process that involves subjecting the particles to a relatively high velocity such that fusion of particles occurs during deposition. In some embodiments, the layer (e.g., the layer comprising a plurality of particles) is an ion-conducting layer.

LITHIUM-MANGANESE DIOXIDE PRIMARY BATTARY AND PREPARATION THEREOF

A lithium-manganese dioxide primary battery and preparation thereof. The battery has a discharge capacity greater than 3C at −40° C., and includes multiple positive plates, multiple negative plates, multiple ceramic separators, an electrolyte and a casing. The positive plates, the negative plates and the separators are laminated in a manner of repeated “positive plate-separator-negative plate-separator” to form a dry cell. The lithium-manganese dioxide primary battery is made by placement of the dry cell into the casing, injection of the electrolyte, primary aging, sealing and secondary aging. The positive plate and the negative plate are graphene-based manganese dioxide positive plate and lithium-carbon composite negative plate, respectively. The front and back surfaces of the positive plate are respectively provided with a positive reserved tab, and the front and back surfaces of the negative plate are respectively provided with a negative reserved tab. 1. A lithium-manganese dioxide primary battery , comprising:a dry cell;an electrolyte; anda casing;wherein the dry cell comprises a plurality of positive plates, a plurality of negative plates and a plurality of separators; the plurality of positive plates, the plurality of negative plates and the plurality of separators are laminated in a manner of repeated “positive plate-separator-negative plate-separator”; the lithium-manganese dioxide primary battery is prepared by placement of the dry cell in the casing, injection of the electrolyte, primary aging, sealing and secondary aging; each of the plurality of positive plates is a graphene-based manganese dioxide positive plate; each of the plurality of negative plates is a lithium-carbon composite negative plate; both surfaces of each of the plurality of positive plates are provided with a positive reserved tab, respectively; both surfaces of each of the plurality of negative plates are provided with a negative reserved tab, respectively; and the lithium-manganese ...

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 ...

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 the same. The separator includes a porous substrate and a coating layer on at least one surface of the porous substrate, wherein the coating layer includes a binder including 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)acrylamidosulfonic acid, a (meth)acrylamidosulfonic acid salt or a combination thereof; first inorganic particles; and second inorganic particles, wherein the average diameter of the first inorganic particles is 400 nm to 600 nm, and the average diameter of the second inorganic particles is smaller than the average diameter of the first inorganic particles. 1. A separator for a lithium secondary battery , comprisinga porous substrate anda coating layer on at least one surface of the porous substrate,wherein the coating layer comprisesa binder including a (meth)acrylic copolymer a first structural unit derived from (meth)acrylamide, a second structural unit derived from (meth)acrylonitrile, and a third structural unit derived from (meth)acrylamidosulfonic acid, (meth)acrylamidosulfonic acid salt, or a combination thereof;first inorganic particles; andsecond inorganic particles;wherein the average diameter of the first inorganic particles is 400 nm to 600 nm, andthe average diameter of the second inorganic particles is smaller than the average diameter of the first inorganic particles.2. The separator of claim 1 , wherein the second inorganic particles are included in an amount of less than 75 wt % based on the total amount of the first inorganic particles and the second inorganic particles.3. The separator of claim 1 , wherein the second inorganic particles are included in an amount of 10 wt % to 60 wt % based on the total amount of the first inorganic particles and the second ...

NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

This non-aqueous electrolyte secondary battery comprises a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode. The separator includes; a porous base material; a first filler layer which contains phosphate particles as a primary component and is arranged on one surface of the base material; and a second filler layer which is arranged on the other surface of the base material and which contains at least one type of compound selected from the group consisting of an aromatic polyamide, an aromatic polyimide and an aromatic polyamideimide. The BET specific surface area of the phosphate particles is 5-100 m/g. The content of the aforementioned compounds in the second filler layer is 15 mass % or more. 1. A non-aqueous electrolyte secondary battery comprising:a positive electrode;a negative electrode; anda separator interposed between the positive electrode and the negative electrode, wherein the separator comprises:a porous base member;a first filler layer which contains phosphate particles as a primary component, and which is placed over one surface of the base member; anda second filler layer which contains one or more compounds selected from the group consisting of an aromatic polyamide, an aromatic polyimide, and an aromatic polyamideimide, and which is placed over the other surface of the base member,{'sup': 2', '2, 'a BET specific surface area of the phosphate particles is greater than or equal to 5 m/g and less than or equal to 100 m/g, and'}a content of the compound in the second filler layer is greater than or equal to 15 mass %.2. The non-aqueous electrolyte secondary battery according to claim 1 , whereinthe content of the compound in the second filler layer is greater than or equal to 20 mass % and less than or equal to 40 mass %.3. The non-aqueous electrolyte secondary battery according to claim 1 , whereina content of the phosphate particles in the first filler layer is greater than ...

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 the same. The separator includes a porous substrate, and a coating layer on at least one surface of the porous substrate, wherein the coating layer includes a binder including a (meth)acrylic copolymer including a first structural unit derived from (meth)acrylamide, and a second structural unit including at least one of a structural unit derived from (meth)acrylic acid or (meth)acrylate, and a structural unit derived from (meth)acrylamidosulfonic acid or a salt thereof; first inorganic particles; and second inorganic particles, wherein the first inorganic particles have an average particle diameter of 400 to 600 nm, the average particle diameter of the second inorganic particles is smaller than the average particle diameter of the first inorganic particles. 1. A separator for a lithium secondary battery , comprisinga porous substrate, anda coating layer on at least one surface of the porous substrate,wherein the coating layer comprises a binder including a (meth)acrylic copolymer including a first structural unit derived from (meth)acrylamide, and a second structural unit including at least one of a structural unit derived from (meth)acrylic acid or (meth)acrylate, and a structural unit derived from (meth)acrylamidosulfonic acid or a salt thereof;first inorganic particles; andsecond inorganic particles,wherein the first inorganic particles have an average particle diameter of 400 to 600 nm, andthe average particle diameter of the second inorganic particles is smaller than the average particle diameter of the first inorganic particles.2. The separator of claim 1 , wherein the second inorganic particles are included in an amount of less than 75 wt % based on the total amount of the first inorganic particles and the second inorganic particles.3. The separator of claim 1 , wherein the first inorganic particles and the second inorganic particles are ...

Battery

A battery is provided. The battery includes a positive electrode including a positive electrode active material layer provided on a positive electrode current collector; a negative electrode; and a separator at least including a porous film, wherein the porous film has a porosity ε [%] and an air permeability t [sec/100 cc] which satisfy formulae of: t=a×Ln (ε)− 4.02 a+ 100 and − 1.87×1010× S −4.96 ≦a≦− 40 wherein S is the area density of the positive electrode active material layer [mg/cm2] and Ln is natural logarithm.

Molten-salt battery

There is provided with a molten-salt battery which can prevent relative positional displacement between a positive electrode or a negative electrode and a separator. Both faces of the negative electrodes are covered with the separators which are formed to bend along a lower end part of the respective positive electrodes. The separators respectively have a V-shaped or U-shaped cross section, a bent part is formed to have a valley-like (groove-like) shape, and the respective bent parts are disposed along a lower side of the positive electrodes. The positive electrodes having both faces covered with the respective separators as described above and the negative electrodes are laminated alternately. The dimension of the separators after being bent is made larger than that of the positive electrodes and the negative electrodes by 1 to 10%.

Base for lithium ion secondary battery separators, method for producing base for lithium ion secondary battery separators, and lithium ion secondary battery separator

A base material for a lithium ion secondary battery separator provided by the present invention comprises a polyethylene terephthalate fiber, in which an average fiber diameter of the polyethylene terephthalate fiber is 9.0 μm or less, a specific X-ray diffraction intensity derived from the polyethylene terephthalate fiber is 300 cps/(g/m 2 ) or more, and a coefficient of variation of a specific X-ray diffraction intensity is 12.0% or less, and is excellent in the workability during production and excellent in mechanical strength, uniformity and handling in a subsequent treatment step.

Ion exchange membrane and method for manufacturing same

A method for manufacturing an ion exchange membrane is provided. The method for manufacturing an ion exchange membrane, according to one embodiment of the present invention, comprises the step of electrospinning a support fiber producing solution and an ion exchange fiber producing solution respectively to prepare a laminate in which a support fiber mat consisting of a support fiber and an ion exchange fiber mat consisting of an ion exchange fiber are alternatively laminated. According to the present invention, it is possible to simply control factors, such as the thickness, electroconductivity and mechanical strength of the membrane, and the diameter/ratio of a pore, etc. to be suitable for the use of ion exchange membrane during the manufacturing process, to simplify the manufacturing process. As such, the ion exchange membrane manufactured by the method can be utilized as a universal ion exchange membrane which has a large ion exchange capacity, a small electrical resistance, and a small diffusion coefficient as well as excellent mechanical strength and durability.

Fluoropolymer composition stabilized against changes in ph

The present invention relates to a composition comprising particles of at least one 1,1-difluoroethylene (VDF)-based fluoropolymer, in admixture with a stabilizer agent selected from alkaline metal hydrogencarbonates or hydrogenphosphates, and to uses of said composition notably in electrochemical cells.

Protected active metal electrode and battery cell structures with non-aqueous interlayer architecture

Active metal and active metal intercalation electrode structures and battery cells having ionically conductive protective architecture including an active metal (e.g., lithium) conductive impervious layer separated from the electrode (anode) by a porous separator impregnated with a non-aqueous electrolyte (anolyte). This protective architecture prevents the active metal from deleterious reaction with the environment on the other (cathode) side of the impervious layer, which may include aqueous or non-aqueous liquid electrolytes (catholytes) and/or a variety of electrochemically active materials, including liquid, solid and gaseous oxidizers. Safety additives and designs that facilitate manufacture are also provided.

Method for production of laminated solid electrolyte-based components and electrochemical cells using same

A method for producing a solid electrolyte-based electrochemical cell by dry laminating the solid electrolyte layers to active material layers to form composite components, contacting composite components, and packaging the contacted composite components to form a solid electrolyte-based electrochemical cell.

BATTERY

A battery is provided. The battery includes an electrode body having a winding structure. The electrode body includes a first electrode having a first belt shape, a second electrode having a second belt shape, and a separator having a third belt shape, and an electrolyte. The separator is provided between the first electrode and the second electrode. 1. A battery comprising:an electrode body having a winding structure, the electrode body including:a first electrode having a first belt shape;a second electrode having a second belt shape; anda separator having a third belt shape, the separator being provided between the first electrode and the second electrode; andan electrolyte, whereinan electrode that is located at an innermost periphery from among the first electrode and the second electrode includes:a current collector that includes a first principal face and a second principal face;a first active material layer that is provided on the first principal face in such a way that a first current-collector exposed part is provided at an end on a winding center side of the electrode;a second active material layer that is provided on the second principal face in such a way that a second current-collector exposed part is provided at the end on the winding center side of the electrode;a first insulating member; anda second insulating member, whereinthe first insulating member covers a boundary between the first active material layer and the first current-collector exposed part, and the first current-collector exposed part,the second insulating member covers a boundary between the second active material layer and the second current-collector exposed part, and the second current-collector exposed part,the first insulating member and the second insulating member overlap each other to sandwich the current collector,widths of the first insulating member and the second insulating member in a shorter side direction of the electrode are greater than a width of the electrode in the ...

METHOD FOR THE FABRICATION OF A HYBRID SOLID ELECTROLYTE MEMBRANE, AND AN ALL-SOLID-STATE LITHIUM BATTERY USES THE MEMBRANE

The present invention provides a method for the fabrication of a LaZrGa(OH)metal hydroxide precursor with a co-precipitation method in a continuous TFR reactor. The present invention also provides a method for the fabrication of an ion-doped all-solid-state lithium-ion conductive material with lithium ionic conductivity, and mixing which in the polymer base material, using a doctor-blade coating method to prepare a free standing double layered and triple layered organic-inorganic hybrid solid electrolyte membrane. Furthermore, the present invention provides an all-solid-state lithium battery using the aforementioned hybrid solid electrolyte membrane and measure the electrochemical performance. The all-solid-state lithium battery may enhance the lithium ionic conductivity, and lower the interfacial resistance between the solid electrolyte membrane and the electrode, therefore the battery may have excellent performance, and prevent the lithium-dendrite formation effectively to enhance the safety. 1. A method for the fabrication of a free standing double layered organic-inorganic hybrid solid electrolyte membrane , comprising the steps of:step (1): preparing an ion-doped all-solid-state lithium-ion conductive material with lithium ionic conductivity:{'sub': 'x', '(1-a) mixing LaZrGa(OH)metal hydroxide precursor, lithium salts, which serve as a lithium source, and a source of ion doping, to form a mixture; in a milling pot containing methanol solvent, grinding and mixing the mixture with the ball mill to form a mixture solution; after grinding, taking out the milling ball from the milling pot, and placing the milling pot in an oven to dry the mixture solution, in order to remove the methanol solvent and to form the powders; wherein,'}{'sub': 'x', 'a method for the fabrication of said LaZrGa(OH)metal hydroxide precursor comprises the steps of(a) dissolving metal salt powders, which separately serve as a lanthanum source, a zirconium source and a gallium source, in ...

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 ...