ЭЛЕКТРОД ДЛЯ АККУМУЛЯТОРА С НЕВОДНЫМ ЭЛЕКТРОЛИТОМ

Изобретение относится к электроду для аккумулятора с неводным электролитом. Согласно изобретению электрод содержит активный материал, электропроводящую добавку и связующее. Активный материал LiхNiуМzO2 (0,8<х<1,5, 0,8<у+z<1,2, 0≤z<0,35; М - по меньшей мере один элемент, выбранный из группы, состоящей из Со, Мg, Са, Sr, Al, Mn, Fe), у которого значение среднего диаметра частиц находится в диапазоне 2,0 - 50 мкм, определяемом шириной кривой распределения частиц по размеру на половине ее высоты. Связующее представляет собой фторкаучук или поливинилиденфторид. Электропроводящая добавка представляет собой графит, когда связующее - поливинилиденфторид. Техническим результатом изобретения является увеличение емкости аккумулятора и гибкости электрода. 2 с.п. ф-лы, 1 ил., 3 табл.

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 ...

СПОСОБ ИЗГОТОВЛЕНИЯ ПЕРЕЗАРЯЖАЕМЫХ ЛИТИЙ-ПОЛИМЕРНЫХ БАТАРЕЙ И БАТАРЕЯ, ИЗГОТОВЛЕННАЯ ЭТИМ СПОСОБОМ

Изобретение относится к перезаряжаемой литий-полимерной батарее. Согласно изобретению батарея имеет следующую структуру: коллекторную пленку, активное вещество катода, содержащее в качестве активного компонента интеркалированный переходный металлоксид, проводящую добавку и полимер, набухший с образованием геля в электролитическом растворе соли; полимерный гелеобразный электролит, содержащий полимер, набухший с образованием геля в электролитическом растворе соли; активное вещество анода, содержащее в качестве активного компонента интеркалированный материал и полимер, набухший с образованием геля в электролитическом растворе соли; и коллекторную пленку. Техническим результатом изобретения является снижение затрат на изготовление. 2 н. и 8 з.п. ф-лы, 2 ил.

СПОСОБ ИЗГОТОВЛЕНИЯ СТРУКТУРИРОВАННЫХ ЧАСТИЦ, СОСТОЯЩИХ ИЗ КРЕМНИЯ ИЛИ МАТЕРИАЛА НА ОСНОВЕ КРЕМНИЯ, И ИХ ПРИМЕНЕНИЕ В ПЕРЕЗАРЯЖАЕМЫХ ЛИТИЕВЫХ БАТАРЕЯХ

Изобретение относится к активному анодному материалу для литиевого аккумулятора и его использования в указанном аккумуляторе. Техническим результатом изобретения является улучшение циклических характеристик и снижение стоимости производства. Согласно изобретению столбчатые частицы на основе кремния или кремний-содержащего материала могут быть использованы как для получения композитной анодной структуры с полимерным связующим, проводящей добавкой и токоснимателем из металлической фольги, и электродной структуры. 10 н. и 27 з.п. ф-лы, 4 ил.

ЭЛЕКТРОД ДЛЯ ЛИТИЕВОЙ ВТОРИЧНОЙ БАТАРЕИ, ЛИТИЕВАЯ ВТОРИЧНАЯ БАТАРЕЯ И СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ

Изобретение относится к электроду для литиевой вторичной батареи, литиевой вторичной батарее и способу его изготовления. Согласно изобретению электрод для литиевой вторичной батареи включает в себя листовидный токосъемник и слой активного материала, нанесенный на этот токосъемник. Слой активного материала способен к поглощению и выделению лития и включает в себя множество столбчатых частиц, имеющих по меньшей мере один изгиб. Угол θ1, образованный направлением роста столбчатых частиц от основания до первого изгиба столбчатых частиц и направлением нормали к токосъемнику, предпочтительно составляет 10° или более и менее 90°. Когда θn+1 представляет собой угол, образованный направлением роста столбчатых частиц от n-го изгиба, отсчитанного от основания столбчатых частиц, до (n+1)-го изгиба и направлением нормали к токосъемнику, а n является целым числом 1 или более, θn+1 предпочтительно составляет 0° или более и менее 90°. Техническим результатом является высокая емкость, улучшение зарядных ...

АККУМУЛЯТОРНАЯ БАТАРЕЯ С УЛУЧШЕННОЙ ПОДВИЖНОСТЬЮ ИОНОВ ЛИТИЯ И УЛУЧШЕННОЙ ЕМКОСТЬЮ ЭЛЕМЕНТОВ

Изобретение относится к аккумуляторной (вторичной) батарее с улучшенными характеристиками подвижности ионов лития и увеличенной емкостью элементов. Согласно изобретению активный катодный материал для литиевой аккумуляторной батареи содержит два или более активных материала, имеющие различные редокс-уровни, так чтобы проявлять лучшие разрядные характеристики в диапазоне разряда большим током вследствие последовательного действия активных катодных материалов в процессе разряда, причем этот активный катодный материал составлен из активных материалов двух типов; и при этом активные материалы двух типов имеют различный средний размер частиц, так чтобы увеличить плотность электрода. Техническим результатом являются улучшенные разрядные характеристики, увеличение емкости элементов вследствие увеличенных плотности электрода и удельной емкости электрода, увеличение мощности батареи. 3 н. и 12 з.п. ф-лы, 16 ил., 2 табл.

ЭЛЕМЕНТ АККУМУЛЯТОРНОЙ БАТАРЕИ

Изобретение относится к области электротехники, а именно, к литий-ионной аккумуляторной батарее, которой обладает повышенной стабильностью и надежностью за счет использования электролита на основе SO2, который демонстрирует хорошие характеристики при низких температурах. Повышение эксплуатационной надежности и срока службы батареи без разрушения электролита является техническим результатом изобретения, который достигается за счет того, что элемент (2, 20, 40) аккумуляторной батареи содержит активный металл, по меньшей мере один положительный электрод (4, 23, 44), по меньшей мере один отрицательный электрод (5, 22, 45), корпус (1, 28) и электролит, при этом указанный положительный электрод (4, 23, 44) содержит по меньшей мере одно соединение в форме слоя оксида в качестве активного материала, а указанный электролит выполнен на основе SO2 и содержит по меньшей мере одну проводящую соль, содержащую органическую добавку выбранную из группы: C1-С10 алкил, С2-С10 алкенил, С2-С10 алкинил, С3-С10 ...

Способ получения тонкопленочного катода

Изобретение относится к способу получения структуры тонкопленочного катода на основе системы LiFeMnSiOи позволяет получить катод с монокристаллической бездефектной структурой с равномерным распределением химического состава по объему. Повышение удельной емкостью и циклической стабильности литий-ионных аккумуляторных батарей является техническим результатом изобретения. В качестве начального компонента выбирают токоснимающую алюминиевую подложку, которую помещают в камеру для нанесения тонких пленок, подвергают ее сушке в вакууме в течении 1-3 часов, и после сушки при температуре 200-250°C проводят последовательный процесс нанесения компонентов: атомного слоя оксида железа (FeO), атомного слоя оксида марганца (MnO), атомного слоя оксида лития (LiO), атомного слоя оксида кремния (SiO), с использованием металлорганических прекурсоров, до формирования аморфного соединения состава LiFeMnSiO. Далее проводят импульсную термическую обработку при температуре 600-640°C в течение 0,1-0,2 секунд, в ...

ЛИТИЕВАЯ ВТОРИЧНАЯ БАТАРЕЯ С ЭЛЕКТРОЛИТОМ, СОДЕРЖАЩИМ СОЕДИНЕНИЯ АММОНИЯ

Изобретение относится к литиевой вторичной батареи с электролитом, содержащим соединения аммония. Согласно изобретению литиевая батарея содержит катод, включающий литийсодержащий оксид переходного металла, анод, включающий графитизированный углерод, и неводный электролит с добавкой соединения аммония, способного давать ионы аммония. Техническим результатом изобретения является улучшение рабочих характеристик батареи при высоких температурах посредством добавления в электролит соединения аммония. 8 з.п. ф-лы, 1 табл.

АКТИВНЫЙ ЭЛЕКТРОДНЫЙ МАТЕРИАЛ С ОКСИДНЫМИ СЛОЯМИ НА МНОГОЭЛЕМЕНТНОЙ ОСНОВЕ И СПОСОБ ЕГО ПОЛУЧЕНИЯ

Изобретение относится к активному электродному материалу, содержащему слой многокомпонентного оксидного покрытия, способу его получения и электроду, содержащему вышеупомянутый электродный материал. Кроме того, изобретение относится к электрохимическому устройству, предпочтительно - литиевой вторичной батарее, включающему(ей) в себя вышеупомянутый электрод. Согласно изобретению активный электродный материал содержит: (а) частицы литийсодержащего(их) сложного(ых) оксида(ов), способные к интеркаляции/деинтеркаляции лития; и (b) слой многокомпонентного оксидного покрытия, частично или полностью сформированный на поверхности частиц литийсодержащего(их) сложного(ых) оксида(ов) и содержащий соединение, представленное следующей формулой: Al1-aPaXbO4-b, в которой Х обозначает элемент - галоген, 0<а<1 и 0 Подробнее

АКТИВНЫЙ КАТОДНЫЙ МАТЕРИАЛ ДЛЯ ПЕРЕЗАРЯЖАЕМЫХ ЛИТИЕВЫХ БАТАРЕЙ

Изобретение относится к активному катодному материалу для перезаряжаемых литиевых батарей. Согласно изобретению активный катодный материал включает смешанный оксид лития и переходного металла, представленный следующей формулой (1), которая содержит избыток лития и никель со средней степенью окисления более чем 2+ с тем, чтобы продемонстрировать улучшенные характеристики скорости в условиях высокой скорости заряда/разряда: , где а, b, с, d и е определяются с помощью уравнения 1,1≤(1+a)/(b+c+d+e)<1,3; средняя степень окисления каждого из элементов переходных металлов, описанных выше, представляется следующим образом: Ni′>2+, Ni″=3+, Mn=4+ и Со=3+; 0≤е≤0,1; 0,2 Подробнее

СПОСОБ ПОЛУЧЕНИЯ ЧАСТИЦ ПРЕКУРСОРА И ЧАСТИЦА ПРЕКУРСОРА, ПОЛУЧЕННАЯ ЭТИМ СПОСОБОМ

Изобретение относится к способу производства катода литий-ионного аккумулятора, в частности к способу получения частиц прекурсора без использования органических хелатирующих добавок для изменения скорости осаждения, и к частице прекурсора, полученной таким способом, а также относится к способу получения из этих частиц активных катодных частиц. В способе контролируют подачу продуктов с разным анионным составом и/или катионным составом и регулируют рН в соответствии с веществами, при этом частицы осаждаются с образованием суспензии, фильтруют и высушивают суспензию с осажденными частицами с получением частиц прекурсора. Оболочка частицы прекурсора со структурой ядро-оболочка имеет градиент анионов и/или катионов. Такая частица прекурсора может быть использована для производства катода литий-ионного аккумулятора. Техническим результатом является улучшение продолжительности и срока службы катодных частиц, улучшение электрохимических свойств катода, снижение стоимости. 2 н. и 11 з.п. ф-лы, 7 ...

МАТЕРИАЛ ПОЛОЖИТЕЛЬНОГО ЭЛЕКТРОДА ДЛЯ ЭЛЕКТРИЧЕСКОГО УСТРОЙСТВА И ЭЛЕКТРИЧЕСКОЕ УСТРОЙСТВО, ПРОИЗВЕДЕННОЕ С ЕГО ИСПОЛЬЗОВАНИЕМ

Изобретение относится к материалу положительного электрода для электрического устройства. Материал положительного электрода для электрического устройства представлен формулой:(где 0<а<1, 0<х<0,5 и 0 Подробнее

АКТИВНЫЙ МАТЕРИАЛ ПОЛОЖИТЕЛЬНОГО ЭЛЕКТРОДА ДЛЯ БЕЗВОДНОГО ЭЛЕКТРОЛИТИЧЕСКОГО ВТОРИЧНОГО ЭЛЕМЕНТА И СПОСОБ ЕГО ПОЛУЧЕНИЯ

... 1. Активный материал положительного электрода, включающий основу и один или более слоев для покрытия указанной основы, в котором, по крайней мере, один из указанных слоев представляет собой слой покрытия, содержащий один или более видов металлических компонентов и один или более компонентов, выбранных из группы, которая состоит из серы, селена и теллура. 2. Активный материал положительного электрода по п.1, отличающийся тем, что слой покрытия содержит более чем два вида металлических компонентов. 3. Активный материал положительного электрода по п.1, отличающийся тем, что металлический компонент, содержащийся в слое покрытия, представляет собой один или более видов компонентов, выбранных из группы, состоящей из лития, магния, алюминия, кремния, хрома, железа, циркония, ниобия, индия, вольфрама и церия. 4. Активный материал положительного электрода по п.1, отличающийся тем, что основа содержит марганцевый компонент. 5. Активный материал положительного электрода по п.1, отличающийся тем, что ...

СПОСОБ ИЗГОТОВЛЕНИЯ СТРУКТУРИРОВАННЫХ ЧАСТИЦ, СОСТОЯЩИХ ИЗ КРЕМНИЯ ИЛИ МАТЕРИАЛА НА ОСНОВЕ КРЕМНИЯ, И ИХ ПРИМЕНЕНИЕ В ПЕРЕЗАРЯЖАЕМЫХ ЛИТИЕВЫХ БАТАРЕЯХ

... 1. Кремнийсодержащая частица, имеющая центральную часть и массив выступающих из нее кремнийсодержащих столбиков. ! 2. Частица по п.1, отличающаяся тем, что указанный массив является упорядоченным. ! 3. Частица по п.1, отличающаяся тем, что указанный массив является разупорядоченным. ! 4. Частица по любому из пп.1-3, отличающаяся тем, что указанные столбики в первом направлении имеют размер от 0,08 до 0,70 мкм. ! 5. Частица по любому из пп.1-3, отличающаяся тем, что указанные столбики во втором направлении имеют размер от 4 до 100 мкм. ! 6. Частица по любому из пп.1-3, отличающаяся тем, что указанные столбики имеют соотношение сторон более чем 20:1. ! 7. Частица по любому из пп.1-3, отличающаяся тем, что поперечное сечение указанных столбиков является, по существу, круглым. ! 8. Частица по любому из пп.1-3, отличающаяся тем, что поперечное сечение указанных столбиков является, по существу, некруглым. ! 9. Частица по любому из пп.1-3, отличающаяся тем, что центральная часть и/или столбики ...

ЭЛЕКТРОД ДЛЯ ЛИТИЕВОЙ ВТОРИЧНОЙ БАТАРЕИ, ЛИТИЕВАЯ ВТОРИЧНАЯ БАТАРЕЯ И СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ

... 1. Электрод для литиевой вторичной батареи, содержащий листовидный токосъемник и слой активного материала, нанесенный на упомянутый токосъемник, при этом упомянутый слой активного материала включает в себя множество столбчатых частиц, имеющих по меньшей мере один изгиб, и ! упомянутые столбчатые частицы способны к поглощению и выделению лития. ! 2. Электрод для литиевой вторичной батареи по п.1, в котором угол θ1, образованный направлением роста упомянутых столбчатых частиц от основания до первого изгиба упомянутых столбчатых частиц и направлением нормали к упомянутому токосъемнику, составляет 10° или более и менее 90°. ! 3. Электрод для литиевой вторичной батареи по п.1, в котором, когда θn+1 представляет собой угол, образованный направлением роста упомянутых столбчатых частиц от n-го изгиба, отсчитанного от основания упомянутых столбчатых частиц, до (n+1)-го изгиба и направлением нормали к упомянутому токосъемнику, а n является целым числом 1 или более, упомянутый θn+1 составляет 0° или ...

АКТИВНЫЙ МАТЕРИАЛ ПОЛОЖИТЕЛЬНОГО ЭЛЕКТРОДА ДЛЯ ЭЛЕКТРИЧЕСКОГО УСТРОЙСТВА, ПОЛОЖИТЕЛЬНЫЙ ЭЛЕКТРОД ДЛЯ ЭЛЕКТРИЧЕСКОГО УСТРОЙСТВА И ЭЛЕКТРИЧЕСКОЕ УСТРОЙСТВО

Активный материал положительного электрода для электрического устройства содержит первый активный материал и второй активный материал. Первый активный материал состоит из оксида переходного металла, представленного формулой (1): Li[NiCoMn[Li]]O…(1), где в формуле (1) a, b, c и d удовлетворяют соотношениям: 0 Подробнее

АККУМУЛЯТОРНАЯ БАТАРЕЯ С УЛУЧШЕННОЙ ПОДВИЖНОСТЬЮ ИОНОВ ЛИТИЯ И УЛУЧШЕННОЙ ЕМКОСТЬЮ ЭЛЕМЕНТОВ

... 1. Активный катодный материал для литиевой аккумуляторной батареи, содержащий два или более активных материала, имеющих различные редокс-уровни, так чтобы проявлять лучшие разрядные характеристики в диапазоне разряда большим током за счет последовательного действия активных катодных материалов в процессе разряда. 2. Активный катодный материал по п.1, в котором редокс-уровень активных материалов находится в диапазоне от 3,5 до 4,5 В. 3. Активный катодный материал по п.1, причем этот активный катодный материал составлен из двух активных материалов. 4. Активный катодный материал по п.3, в котором гетерогенные активные материалы имеют различный средний размер частиц, так чтобы увеличить плотность электрода. 5. Активный катодный материал по п.4, в котором размер активного материала B, имеющего относительно маленький диаметр частиц, составляет менее 50% от размера активного материала A, имеющего относительно большой диаметр частиц. 6. Активный катодный материал по п.5, в котором размер активного ...

АККУМУЛЯТОРНАЯ БАТАРЕЯ

... 1. Аккумуляторная батарея, включающая в себя положительный электрод, который может поглощать и выделять литий, и жидкий электролит;при этом положительный электрод содержит активный материал положительного электрода, который работает при потенциале 4,5 В или выше по отношению к литию; ипри этом жидкий электролит содержит фторированный простой эфир, представленный следующей формулой (1), и циклический сульфонат, представленный следующей формулой (2):(1),при этом в формуле (1) Rи R, каждый независимо, обозначают алкильную группу или фторированную алкильную группу, и по меньшей мере один из Rи Rявляется фторированной алкильной группой; и(2),при этом в формуле (2) A и B, каждый независимо, обозначают алкиленовую группу или фторированную алкиленовую группу, а X обозначает одинарную связь или группу -OSO-.2. Аккумуляторная батарея по п. 1, при этом активным материалом положительного электрода является сложный оксид лития-марганца, представленный следующей формулой (3):Li(MMnY)(OZ)(3),при этом ...

АКТИВНЫЙ МАТЕРИАЛ ОТРИЦАТЕЛЬНОГО ЭЛЕКТРОДА, ОТРИЦАТЕЛЬНЫЙ ЭЛЕКТРОД И АККУМУЛЯТОР

ЭЛЕКТРОАКТИВНЫЙ МАТЕРИАЛ

... 1. Композиция, содержащая множество удлиненных элементов и множество частиц, причем как удлиненные элементы так и частицы содержат металл или полуметалл, выбранный из одного или более металла или полуметалла из группы, включающей кремний, олово, германий и алюминий или их смесь, и характеризующаяся тем, чтоа. удлиненные элементы выбраны из одного или более удлиненного элемента из группы, включающей волокна, трубки, ленты и хлопья иb. частицы выбраны из одной или более частицы из группы, включающей столбчатые частицы, пористые частицы и фрагменты пористых частиц.2. Композиция по п.1, отличающаяся тем, чтоа. удлиненные элементы выбраны из одного или более удлиненного элемент из группы, включающей волокна с диаметром от 100 до 500 нм, трубки, ленты и хлопья; иb. частицы представляют собой нативные кремниевые частицы.3. Композиция по п.1, отличающаяся тем, чтоа. удлиненный элемент представляет собой столбчатую частицу; иb. частицы выбраны из одной или более частицы из группы, включающей нативные ...

Lithium Sekundärbatterie

Galvanische Zelle mit verbesserter Lebensdauer

Nichtwässrige Sekundärbatterie

Nichtwässriger Akkumulator

Kompositkathode und diese umfassende Lithiumionenbatterie sowie Verfahren zur Herstellung der Kompositkathode

Die Erfindung betrifft eine Kompositkathode umfassend Ableiter, aktives Kathodenmaterial, Bindemittel, fester anorganischer Lithium-Ionenleiter und Flüssigelektrolyt, wobei der anorganischen Festkörperelektrolyt in der Kompositkathode in einem höheren Volumen- und Gewichtsanteil als der Flüssigelektrolyt vorhanden ist. Zudem wird eine Lithiumionenbatterie umfassend die Kompositkathode und ein Verfahren zur Herstellung der Kompositkathode angegeben.

Positives Elektrodenaktivmaterial und Sekundärbatterie mit nichtwässrigem Elektrolyten

Lithium-Sekundärbatterie

Positives aktives Material für sekundäre Batterie mit nichtwässrigen Elektrolyten

Sekundärbatterievorrichtung

Eine Sekundärbatterie weist eine positive Elektrode und eine negative Elektrode auf und wird geladen und entladen. Eine Lade-Entlade-Steuerungseinheit steuert ein Laden und Entladen der Sekundärbatterie und umfasst eine Speichereinheit, eine Berechnungseinheit und eine Steuerungsverarbeitungseinheit. Die Speichereinheit speichert in sich Lade-Entlade-Eigenschaften bzw. -Kennlinien der Sekundärbatterie. Die Berechnungseinheit berechnet eine Lade-Entlade-Bedingung der Sekundärbatterie auf der Grundlage der Lade-Entlade-Eigenschaften bzw. -Kennlinien, die in der Speichereinheit gespeichert sind. Die Steuerungsverarbeitungseinheit lädt und entlädt die Sekundärbatterie auf der Grundlage der Lade-Entlade-Bedingung. Die Speichereinheit speichert in sich Modelldaten einer Verschlechterung. Die Berechnungseinheit vergleicht die Modelldaten einer Verschlechterung mit Lade-Entlade-Daten eines Zeitpunkts, wenn die Sekundärbatterie geladen und entladen wird, berechnet Lade-Entlade-Eigenschaften bzw.

LITHIUM-IONEN-BATTERIE

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

NICHTWÄSSRIGE SEKUNDÄRZELLE

SEKUNDÄRBATTERIE MIT NICHT WÄSSRIGEM ELEKTROLYTEN

POLYESTERELEKTROLYTE AUF PHOSPHORBASIS FÜR HOCHSPANNUNGS-LITHIUM-IONEN-BATTERIEN

Es wurden neue Polyester auf Phosphorbasis synthetisiert. Wenn diese Polymere mit Elektrolytsalzen kombiniert werden, weisen derartige Polymerelektrolyte eine ausgezeichnete elektrochemische Oxidationsstabilität in Lithium-Batteriezellen auf. Ihre Stabilität zusammen mit ihren ausgezeichneten Ionentransporteigenschaften machen sie besonders geeignet als Elektrolyte in hochenergetischen Lithium-Batteriezellen.

Positive Elektrode für Lithiumionen-Sekundärbatterie und Herstellungsverfahren dafür und Lithiumionen-Sekundärbatterie

Eine Aktivmaterialschicht einer positiven Elektrode wird gebildet aus Aktivmaterialteilchen für eine positive Elektrode einschließlich einer Li-Verbindung oder -Feststofflösung, ausgewählt aus der Gruppe bestehend aus LixNiaCobMncO2, LixCobMncO2, LixNiaMncO2, LixNiaCobO2 und Li2MnO3 (angemerkt wird, dass 0,5 x 1,5, 0,1 a < 1, 0,1 b 1 und 0,1 c < 1 ist); ein Bindungsteilbereich, der nicht nur die Teilchen des Aktivmaterials für eine positive Elektrode miteinander verbindet, sondern ebenfalls die Teilchen des Aktivmaterials für eine positive Elektrode zusammen mit dem Stromabnehmer verbindet; und eine organische/anorganische Überzugsschicht, die zumindest Teile der Oberfläche zumindest der Teilchen des Aktivmaterials für eine positive Elektrode bedeckt. Da die organische/anorganische Überzugsschicht eine hohe Verbindungsfestigkeit zu der Li-Verbindung aufweist, sind die Aktivmaterialteilchen für eine positive Elektrode und eine elektrolytische Lösung daran gehindert, zum Zeitpunkt eines Hochspannungsantriebsmodus ...

VERBUNDPARTIKEL EINES AKTIVEN MATERIALS FÜR EINE POSITIVE ELEKTRODE UND VERFAHREN ZU DESSEN HERSTELLUNG, POSITIVE ELEKTRODE UND FESTKÖRPERBATTERIE

Bereitstellung eines Verbundpartikels eines aktiven Materials für eine positive Elektrode, der in der Lage ist, den Widerstand zu reduzieren, selbst wenn eine Bindungskraft der Batterie klein ist, oder selbst wenn ein Mischungsanteil von Partikeln eines aktiven Materials für eine positive Elektrode hoch ist, und eines Verfahrens zur Herstellung eines Verbundpartikels eines aktiven Materials für eine positive Elektrode, einer positiven Elektrode, die den Verbundpartikel eines aktiven Materials für eine positive Elektrode enthält, und einer Festkörperbatterie, die die positive Elektrode enthält. Verbundpartikel eines aktiven Materials für eine positive Elektrode, der Partikel eines aktiven Materials für eine positive Elektrode enthält, die jeweils aus einem lithiumhaltigen Oxid hergestellt sind und eine Oberfläche aufweisen, von der mindestens ein Teil mit einem Beschichtungsmaterial beschichtet ist, das einen Sulfid-Feststoffelektrolyten enthält, und ein Verfahren zur Herstellung des Verbundpartikels ...

FESTER POLYELEKTROLYT

SEKUNDÄRBATTERIE

Batterie

ELEKTROLYT FÜR LITHIUM-SEKUNDÄRBATTERIE UND DIESEN ENTHALTENDE LITHIUM-SEKUNDÄRBATTERIE

Elektrolyt für Lithium-Sekundärbatterie und diesen enthaltende Lithium-Sekundärbatterie. Die offenbarte Lithium-Sekundärbatterie enthält: eine Kathode; eine Anode; einen Separator, angeordnet zwischen der Kathode und der Anode und einen Elektrolyten, wobei der Elektrolyt aufweist: ein Lithiumsalz; und ein Lösungsmittel enthaltend ein perfluoriertes Lösungsmittel auf Ether-Basis, Fluor-Ethylencarbonat (FEC) und Ethylmethylcarbonat (EMC).

Composite lithium-nickel-cobalt oxide used as positive active material in a secondary lithium ion cell

Composite lithium oxide is produced by co-precipitating a composite Ni-Co hydroxide from a mixed salt solution using aqueous ammonia solution as complexing agent, adding lithium hydroxide and heat treating. A composite lithium oxide of formula LiaNi1-xCoxO2 (I), where a = 0.97 to 1.05 and x = 0.1 to 0.3, is produced by: (a) co-precipitating a composite Ni-Co hydroxide by adding an aqueous ammonia complexing solution and an alkaline pH adjusting solution to an aqueous cobalt and nickel salt solution; (b) adding lithium hydroxide and heat treating at 280-420 deg C; and (c) heat treating the product at 650-750 deg C. Independent claims are also included for the following: (i) a composite lithium oxide having the formula LiaNi1-x-yCoxMyO2 (II), (where M = one or more of Al, Ca, Mg and B, a = 0.97 to 1.05, x = 0.1 to 0.3 and y = 0 to 0.05), and comprising primary particles of rectangular or square structure which are agglomerated to form either spherical secondary particles with a vibrated density ...

Sekundärbatterie mit nichtwässrigem Elektrolyt

Sekundärbatterie (100) mit nichtwässrigem Elektrolyt, die eine Positivelektrode (10), eine Negativelektrode (20) und einen nichtwässrigen Elektrolyt umfasst, wobei die Positivelektrode (10) einen Positivelektrodenstromsammler (12) und eine an dem Positivelektrodenstromsammler (12) gebildete Positivelektrodenaktivmaterialschicht (14) umfasst, und die Positivelektrodenaktivmaterialschicht (14) zwei Bereiche aufweist, die in der Oberflächenrichtung des Positivelektrodenstromsammlers (12) abgegrenzt sind, die ein erster Bereich, der hauptsächlich ein Positivaktivmaterial (16) aus Lithiumeisenphosphat enthält, und ein zweiter Bereich sind, der hauptsächlich ein Positivaktivmaterial (16) aus einem Lithium-Übergangsmetall-Mischoxid enthält.

Material für Positivelektrode und Sekundärbatterie

Lithium-Akkumulator

Verfahren zur Herstellung von positivelektrode-aktivem Material, sowie diese verwendende nichtwässerige Sekundärbatterie

Negative aktive Masse geeignet für ungesinterte Nickelelektroden für alkalische Akkumulatoren

KOHLENSTOFFFASERN AUSGEHEND VON EINWANDIGEN KOHLENSTOFFNANORÖHREN

Komposit aus einem elektrisch leitenden Mittel und einem positiven aktiven Material für eine Lithium-Sekundärbatterie, Verfahren zur Herstellung desselben, sowie positive Elektrode und Lithium-Sekundärbatterie enthaltend denselben

VERFAHREN ZUM HERSTELLEN EINER LITHIUM-IONEN-SEKUNDÄRBATTERIE

Vorrichtung zur Herstellung von aktivem Material für eine Lithium-Sekundärbatterie und Verfahren zur Herstellung von aktivem Material für eine Lithium-Sekundärbatterie, Verfahren zur Herstellung einer Elektrode für eine Lithium-Sekundärbatterie, und Verfahren zur Herstellung einer Lithium-Sekundärbatterie

Es wird ein Verfahren zur Herstellung eines aktiven Materials für eine Lithium-Sekundärbatterie bereitgestellt, um ein wirksames Entfernen von Eisenverunreinigungen zu ermöglichen, die bei der Herstellung des aktiven Materials für die Lithium-Sekundärbatterie zu einem Problem werden könnten, und eine hohe Qualität zu erhalten. Das Verfahren beinhaltet das Entfernen von Eisenverunreinigungen in einem aktiven Material für eine Lithium-Sekundärbatterie mittels Magnetkraft. Bei diesem Verfahren ermöglicht die Verwendung einer eine Magnetkraft erzeugenden Vorrichtung innerhalb eines Vertiefungsabschnitts, die zumindest einen Teil des Vertiefungsabschnitts ausmacht, ein wirksames Entfernen nur von Eisenverunreinigungen. Auf diese Weise wird erwartet, dass ein durch Auflösen von Eisenverbindungen, d.h., Verunreinigungen in der positiven Elektrode, und ihre Wanderung zu der negativen Elektrode in einer Batterie verursachter Spannungsabfall, und Verminderungen in der Lade- und Entladefähigkeit sowie ...

Method of passive voltage control in a sodium-ion battery

A sodium ion secondary cell has an anode and a cathode, the anode comprising a negative electrode active material on an anode substrate, and the cathode comprising a positive electrode active material on a cathode substrate. The ratio of the mass of the negative electrode active material to the mass of the positive electrode active material, and the value of the first voltage to which the cell is charged in a cycling phase, are selected such that the minimum voltage at the anode when the cell is charged to the first voltage in the cycling phase is sufficient to substantially prevent formation of a metal layer on the anode. The ratio of the mass of the negative electrode active material to the mass of the positive electrode active material, and the value of the first voltage, may also be selected so that the maximum voltage at the cathode in the cycling phase is less than a voltage at which an irreversible loss of cathode charge capacity occurs. This reduces deterioration of the cells performance ...

Tin-containing compounds

Doped nickelate compounds

High voltage insertion compounds for lithium batteries

Spinel-type lithium-manganese composite oxide

Lithium metal compound oxide having layered structure

Provided is a lithium metal compound oxide having a layered structure that is particularly excellent as the positive electrode active substance of a cell loaded in an electric automobile or hybrid automobile in particular. Provided is a lithium metal compound oxide having a layered structure characterized in that a lithium metal compound oxide having a layered structure that is represented by the general formula Li1+xM1-xO2 (M: a metal element containing the three elements of Mn, Co, and Ni) has a D50 that is greater than 4 µm but smaller than 20 µm; a ratio of primary particle surface area to secondary particle surface area of secondary particles having a size corresponding to D50 ([primary particle surface area/secondary particle surface area]) of 0.004 to 0.035; and a minimum powder compressive strength that is greater than 70 MPa as found by compressing powder using a minimum compression tester.

Positive electrode active material for lithium secondary cell

A cathode composition

A cathode composition for a lithium-ion cell or battery of the general formula: Li1+Mn1−O2 The composition is in the form of a single phase having a rock salt crystal structure; such that an x-ray diffraction pattern of the composition using a CuKα radiation source has an absence of peaks below a 2 ...

Lithium manganese compounds and methods of making the same

SOLID STATE CELL COMPRISING SPINEL

Cathode material and process

Sodium-ion batteries

Rechargeable battery and catalyst materials and the means of production thereof

Method of manufacturing crystaline material from different materials

Cathode material and process

A cathode composition

A cathode composition for a battery has the general formula Mg1+xNi1-xO2 or Mg1+xMn1-xO2; wherein the value of x is greater than 0. Preferably, x ≤ 0.3, and most preferably the composition comprises Mg1.2Ni0.8O2 or Mg1.2Mn0.8O2. A method of making the cathode composition comprises providing a magnesium nickel oxide or magnesium manganese oxide precursor and high-energy milling the precursor with a plurality of milling balls, wherein the precursor has oxidation states that are equal to the oxidation states of the respective elements in the final cathode composition. The precursor may comprise magnesium oxide and nickel oxide or manganese oxide in a molar proportion of 1+x MgO and 1-x NiO or MnO. The milling balls and/or ball milling jar may comprise tungsten carbide or zirconium oxide. A cathode comprising the cathode composition, and an electrochemical cell comprising the cathode alongside an anode and electrolyte are also described and claimed.

ELECTRO-CHEMICAL ENERGY SOURCE, ELECTRONIC MECHANISM AND PROCEDURE FOR THE PRODUCTION OF THE ENERGY SOURCE

ELECTROLYTE FOR RE+RECHARGEABLE LITHIUM BATTERY AND RE+RECHARGEABLE LITHIUM BATTERY CONTAINING THE SAME

MIXTURE METAL HYDROXIDES, THEIR PRODUCTION AND USE

MESOPORÖSES POWDER OR MESOPORÖSER THIN FILM FROM COMPOSITE MATERIAL FROM NANO-CRYSTALLINE OXIDE AND GLASS, MANUFACTURING PROCESS FOR IT AND USE OF THE POWDER OR THIN FILM, DIFFERENT DEVICES, SECONDARY BATTERY AND LITHIUMSPEICHERVORRICHUNG

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

LITHIUM ABSTENTION OXIDMATERIALEN AND PROCEEDING THEIR PRODUCTION

CATHODE COMPOSITION FOR A RECRECHARGEABLE LITHIUM BATTERY

BATTERY WITH HIGHLY COMPRESSED POSITIVE ELECTRODE

ELECTRO-CHEMICAL LITHIUM GENERATOR WITH AT LEAST ONE BIPOLAR ELECTRODE WITH CONDUCTIVE ALUMINIUMODER ALUMINUM ALLOY SUBSTRATES

ELECTRO-CHEMICAL CELL CONTAINING CARBON-CONTAINING MATERIAL AND MOLYBDENUM CARBIDE AS ANODE

LITHIUM BATTERY AND PROCEDURE FOR THE PRODUCTION OF AN ANODE FOR IT

POSITIVE ELECTRODE ACTIVE MATERIAL FOR A SECONDARY BATTERY WITH WATER-FREE ELECTROLYTE, POSITIVE ELECTRODE AND SECONDARY BATTERY

LITHIUM ION SECONDARY BATTERY

LITHIUM ION BATTERY WITH INORGANIC LIIONENLEITENDEN SOLID ELECTROLYTE

LITHIUMHALTIGES NICKEL DIOXIDE AND OF IT MAKING GALVANIC DUMMY ELEMENTS

TERNARY LITHIUM MIXTURE OXIDES, PROCEDURES FOR THEIR PRODUCTION AS WELL AS THEIR USE

POSITIVE ELECTRODE OF LITHIUM ION CELLS FOR APPLICATIONS OF HIGH LOADS

PROCEDURE FOR THE PRODUCTION OF LITHIUMÜBERGANGSMETALLATEN

IONOMERE AND POLYMERS FOR ELECTRO-CHEMICAL APPLICATIONS

LITHIIERTE ELECTRO-CHEMICAL ACTIVE CONNECTIONS AND YOUR PRODUCTION

PROCEDURE FOR THE PRODUCTION OF LITHIUMINTERKALATIONSVERBINDUNGEN

Electrode binder slurry composition for lithium ion electrical storage devices

The present invention provides a slurry composition comprising an electrochemically active material and/or an electrically conductive agent, and a binder comprising a polymer comprising a fluoropolymer dispersed in an organic medium; wherein the organic medium has an evaporation rate less than 10 g/min m ...

Mixed cathode material for high energy density electrochemical cells

Lithium-cobalt composite oxide, method for preparing the same, positive electrode for lithium secondary cell and lithium secondary cell using the same

Device and method for the production of compounds by precipitation

ELECTRODES AND RELATED DEVICES

Granulated powder of transition metal compound for raw material for positive electrode active material of lithium secondary battery, and method for producing the same

Disclosed is a transition metal compound granule serving as a raw material for a positive electrode active material of a lithium secondary battery which has high filling density, high volumetric capacity, high safety and excellent charge/discharge cycle durability. Specifically disclosed is a transition metal compound granule for a raw material for positive electrode active materials of lithium ion secondary batteries, which is characterized by containing at least one element selected from the group consisting of nickel, cobalt and manganese. This transition metal compound granule is also characterized by being substantially spherical and composed of particles having an average primary particle diameter of not more than 1 m, and having an average particle diameter D50 of 10-40 m and an average pore diameter of not more than 1 m.

Sold state electrolytes having high lithium ion conduction

A method for making ion conducting films includes the use of primary inorganic chemicals, which are preferably water soluble; formulating the solution with appropriate solvent, preferably deionized water; and spray depositing the solid electrolyte matrix on a heated substrate, preferably at 100 to 400°C using a spray deposition system. The deposition step is then followed by lithiation or addition of lithium, then thermal processing, at temperatures preferably ranging between 100 and 500 °C, to obtain a high lithium ion conducting inorganic solid state electrolyte. The electrolyte is incorporated into a lithium ion battery. The Li ion battery comprises: a cathode comprising a material selected from the group consisting of : LiMn204, LiMnNiCoA/02, LiCo02, LiNiCo02, and LiFeP04; an anode comprising a material selected from the group consisting of :Li, Li alloys, and metal oxide doped with Li; and, a solid Li -ion conducting electrolyte selected from the group consisting of: LixAlz. y [GanBl ...

CATHODE MATERIAL AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING IT

Gel-type polymer electrolyte and use thereof

Method for producing shaped bodies for lithium ion batteries

SURFACE/CHEMICALLY MODIFIED OXIDE CATHODES FOR LITHIUM-ION BATTERIES

Battery electrode materials

An electrode material for a battery or for a capacitor, supercapacitor or a pseudo capacitor comprises a porous substrate coated with a coating comprising a conducting material and an active material, wherein the thickness of the coating is less than 1 micrometre and the volume fraction of active material is greater than 5%. In another aspect, the electrode material comprises a metallic network structure and an active material connected to the metallic structure, wherein the calculated volume fraction of active material is greater than 5%, and the surface area of the material is greater than 5m ...

Positive electrode active material, nonaqueous electrolyte battery and method for manufacturing positive electrode active material

A positive electrode active material includes: a secondary particle obtained upon aggregation of a primary particle that is a lithium complex oxide particle in which at least nickel (Ni) and cobalt (Co) are solid-solved as transition metals, wherein an average composition of the whole of the secondary particle is represented by the following formula (1): Li x Co y Ni z M 1-y-z O b-a X a   Formula (1) wherein an existent amount of cobalt (Co) becomes large from a center of the primary particle toward the surface thereof; and an existent amount of cobalt (Co) in the primary particle existing in the vicinity of the surface of the secondary particle is larger than an existent amount of cobalt (Co) in the primary particle existing in the vicinity of the center of the secondary particle.

Cathode active material for lithium secondary battery

Provided is a lithium transition metal oxide having an α-NaFeO 2 layered crystal structure, as a cathode active material for lithium secondary battery, wherein the transition metal includes a blend of Ni and Mn, an average oxidation number of the transition metals except lithium is more than +3, and the lithium transition metal oxide satisfies Equations 1 and 2 below: 1.0< m (Ni)/ m (Mn)  (1) m (Ni 2+ )/ m (Mn 4+ )<1  (2) wherein m(Ni)/m(Mn) represents a molar ratio of nickel to manganese and m (Ni 2+ )/m (Mn 4+ ) represents a molar ratio of Ni 2+ to Mn 4+ . The cathode active material of the present invention has a uniform and stable layered structure through control of oxidation number of transition metals to a level higher than +3, in contrast to conventional cathode active materials, thus advantageously exerting improved overall electrochemical properties including electric capacity, in particular, superior high-rate charge/discharge characteristics.

Method for producing cathode active material layer

The main object of the present invention is to provide a method for producing a cathode active material layer, which allows a high-purity lithium complex oxide by restraining impurities from being produced, allows a flat film, and allows orientation control. The present invention solves the above-mentioned problems by providing a method for producing a cathode active material layer, in which a cathode active material layer is formed on a substrate and contains LiX a O b (X is a transition metal element of at least one kind selected from the group consisting of Co, Ni and Mn, a=0.7-1.3, and b=1.5-2.5), characterized in that the method comprises the steps of: forming a cathode active material precursor-film on the above-mentioned substrate by a physical vapor deposition method while setting a temperature of the substrate at 300° C. or less, and performing an annealing treatment for the cathode active material precursor-film at a temperature of a crystallizable temperature of the LiX a O b or more, and characterized in that the substrate has orientation property in a surface.

Electrode composite material, method for making the same, and lithium ion battery using the same

An anode composite material includes an anode active material particle having a surface and a continuous aluminum phosphate layer. The continuous aluminum phosphate layer is coated on the surface of the anode active material particle. The present disclosure also relates to a lithium ion battery that includes the cathode composite material.

Positive Electrode Active Material For Lithium Ion Battery

Disclosed is a positive electrode active material that provides an improved capacity density. Specifically disclosed is a positive electrode active material for a lithium ion battery with a layered structure represented by Li x (Ni y M 1-y )O z (wherein M represents at least one element selected from a group consisting of Mn, Co, Mg, Al, Ti, Cr, Fe, Cu, and Zr; x is in the range from 0.9 to 1.2; y is in the range from 0.3 to 0.95; and z is in the range from 1.8 to 2.4), wherein, when a value obtained by dividing an average of peak intensities observed between 1420 and 1450 cm −1 and between 1470 and 1500 cm −1 by the maximum intensity of a peak appearing between 520 and 620 cm −1 in an infrared absorption spectrum obtained by FT-IR is represented by A, A satisfies the following relational formula: 0.20y−0.05≦A≦0.53y−0.06.

Computer aided solid state battery design method and manufacture of same using selected combinations of characteristics

A method of designing and manufacturing a solid-state electrochemical battery cell for a battery device. The method includes building a database of a plurality of first characteristics of a solid-state cells for a battery device and determining at least a third characteristic of the solid-state cell for a given application. The method also includes selecting at least one material of the solid-state electrochemical battery cell, the selected material being from the plurality of first characteristics and forming a plurality of factorial combinations of each component using the selected plurality of first characteristics to derive a respective plurality of solid-state electrochemical battery cells. The method performs a design optimization process for the third characteristic. A step of identifying an optimal design of the second characteristics with the selected first characteristics for each solid-state electrochemical battery cell from the plurality of solid-state cells is included.

Cathode active material for lithium secondary battery

The present invention provides a cathode active material for a lithium secondary battery containing therein an open pore having a protrusion which is formed so as to extend from the inner surface of the open pore toward the center of the open pore. Specifically, the protrusion is formed so as to extend toward the center of a virtual circle formed by approximating the shape of a cross section of the open pore to a circular shape. The protrusion is formed of the same material as the remaining portion of the cathode active material.

Positive electrode for rechargeable lithium battery and rechargeable lithium battery including same

Disclosed is rechargeable lithium battery that includes a positive electrode including a positive active material layer, a negative electrode including a negative active material and an electrolyte wherein the positive active material layer includes a positive active material, a binder, a conductive material, and an activated carbon, the activated carbon includes micropores in which manganese ions are adsorbed and trapped, and the activated carbon is included in an amount of about 0.1 wt % to about 3 wt % based on the total weight of the positive active material layer.

Non-aqueous liquid electrolyte and non-aqueous liquid electrolyte secondary battery

A non-aqueous liquid electrolyte suitable for use in a non-aqueous liquid electrolyte secondary battery comprising a negative electrode and a positive electrode, capable of intercalating and deintercalating lithium ions, and the non-aqueous liquid electrolyte, the negative electrode containing a negative-electrode active material having at least one kind of atom selected from the group consisting of Si atom, Sn atom and Pb atom, wherein the non-aqueous liquid electrolyte comprises a carbonate having at least either an unsaturated bond or a halogen atom.

Lithium Battery Electrodes with Ultra-thin Alumina Coatings

Electrodes for lithium batteries are coated via an atomic layer deposition process. The coatings can be applied to the assembled electrodes, or in some cases to particles of electrode material prior to assembling the particles into an electrode. The coatings can be as thin as 2 Ångstroms thick. The coating provides for a stable electrode. Batteries containing the electrodes tend to exhibit high cycling capacities.

Cathode active material plate-like particle for lithium secondary battery

An object of the present invention is to realize more effective intercalation and deintercalation of lithium ions in a cathode active material. The preset invention provides a cathode active material plate-like particle for a lithium secondary battery, the particle having a layered rock salt structure, wherein lithium-intercalation/deintercalation-plane-oriented grains (primary crystal grains whose (003) plane is oriented so as to intersect a plate surface of the plate-like particle) are present in a dispersed state among numerous (003)-plane-oriented grains (primary crystal grains whose (003) plane is oriented in parallel with the plate surface of the plate-like particle).

Cathode material for lithium secondary batteries and lithium secondary battery containing the same

This invention relates to a positive electrode active material for a lithium secondary battery and a lithium secondary battery including the same, and particularly to a positive electrode active material for a lithium secondary battery, in which a lithium composite oxide having a composition of LiNi 1-x M x O 2 (wherein M represents one or a combination of two elements selected from the group consisting of Co, Al, Mn, Mg, Fe, Cu, Ti, Sn and Cr, and 0.96≦x≦1.05) is surface-modified using carbon or an organic compound, thereby achieving superior stability and improved high-rate capability compared to conventional positive electrode active materials, and to a lithium secondary battery including the same.

Lithium secondary battery cathode

An object of the present invention is to provide a lithium secondary battery cathode which can more improve characteristics of the battery. The cathode of the present invention includes a first layer composed of a plate-like cathode active material and a second layer containing particles of the cathode active material and a binder, the second layer being joined to the first layer in a stacked state.

Non-aqueous electrolyte secondary battery and method of manufacturing the same

A non-aqueous electrolyte secondary battery having a negative electrode, a non-aqueous electrolyte, and a positive electrode having a positive electrode active material comprising sodium oxide, is characterized in that the sodium oxide contains lithium, and the molar amount of the lithium is less than the molar amount of the sodium.

Battery separators with variable porosity

A porous polymer battery separator is provided that includes variable porosity along its length. Such battery separators can increase the uniformity of the current density within electrochemical battery cells that may normally experience higher current density and higher temperatures near their terminal ends than they do near their opposite ends. By disposing a variable porosity separator between the electrodes of an electrochemical cell such that its terminal end has a lower porosity than its opposite end, the transport of ions, such as lithium ions, through the separator can be more restricted in normally high current regions and less restricted in normally low current regions, thereby increasing the overall uniformity of current density within the battery cell. Variable porosity battery separators may be produced by a modified solvent exchange process. The process may include forming a polymer-containing film having a non-uniform thickness, selectively densifiying the film so that it has a non-uniform polymer concentration, and inducing variable porosity in the film.

Thin film buried anode devices

A reverse configuration, lithium thin film battery ( 300 ) having a buried lithium anode layer ( 305 ) and process for making the same. The present invention is formed from a precursor composite structure ( 200 ) made by depositing electrolyte layer ( 204 ) onto substrate ( 201 ), followed by sequential depositions of cathode layer ( 203 ) and current collector ( 202 ) on the electrolyte layer. The precursor is subjected to an activation step, wherein a buried lithium anode layer ( 305 ) is formed via electroplating a lithium anode layer at the interface of substrate ( 201 ) and electrolyte film ( 204 ). The electroplating is accomplished by applying a current between anode current collector ( 201 ) and cathode current collector ( 202 ).

Positive electrode active material for secondary battery and magnesium secondary battery using the same

In a positive electrode active material for a magnesium secondary battery and a magnesium secondary battery using it, there is contained a powder particle containing a crystal phase having a structure formed with aggregation of a plurality of crystallites, and amorphous phases formed between the crystallites themselves; the amorphous phases contain at least one kind of a metal oxide selected from a vanadium oxide, an iron oxide, a manganese oxide, a nickel oxide and a cobalt oxide; and the crystal phase and the amorphous phases use the positive electrode active material enabling to store and release magnesium ions.

Lithium secondary battery

Disclosed is a lithium secondary battery including a positive electrode comprising a combination of positive active materials. The combination includes a material represented by one or both of Formulae 1 and 2; and a material of Formula 3 as follows: Li a Ni b Mn c M d O 2   (Formula 1) where 0.90≦a≦1.2; 0.5≦b≦0.9; 0<c<0.4; 0≦d≦0.2; Li a Ni b Co c Mn d M e O 2   (Formula 2) where 0.90≦a≦1.2, 0.5≦b≦0.9, 0<c<0.4, 0<d<0.4, and 0≦e≦0.2; Li a CoM b O 2   (Formula 3) where 0.90≦a≦1.2 and 0≦b≦0.2; and each M of Formulae 1-3 is independently selected from the group consisting of Mg, Ca, Sr, Ba, Ra, Sc, Y, Ti, Zr, Hf, Rf, V, Nb, Ta, Db, Cr, Mo, W, Sg, Tc, Re, Bh, Fe, Ru, Os, Hs, Rh, Ir, Pd, Pt, Cu, Ag, Au, Zn, Cd, B, Al, Ga, In, Tl, Si, Ge, Sn, P, As, Sb, Bi, S, Se, Te, Po, and combinations.

Positive Active Material for Rechargeable Lithium Battery, Method of Manufacturing the Same and Rechargeable Lithium Battery Using the Same

A positive active material for a rechargeable lithium battery includes a positive active material compound including a metal compound for intercalating and deintercalating lithium, a coating particle having an embedded portion embedded into the active material compound and a protruding portion protruding from the surface of the active material, and a rechargeable lithium battery including the positive active material.

Non-aqueous electrolytic solution for lithium secondary battery and lithium secondary battery using the same

A non-aqueous electrolytic solution is advantageously used in preparation of a lithium secondary battery excellent in cycle characteristics. In the non-aqueous electrolytic solution for a lithium secondary battery, an electrolyte salt is dissolved in a non-aqueous solvent. The non-aqueous electrolytic solution further contains a vinylene carbonate compound in an amount of 0.01 to 10 wt. %, and an alkyne compound in an amount of 0.01 to 10 wt. %.

Battery pack

An electrical combination including a driver drill capable of producing an average current draw of approximately 20-amps, a circular saw capable of producing an average current draw of approximately 20-amps, and a power tool battery pack operable to supply power to the driver drill and to the circular saw, the battery pack including a plurality of battery cells, the plurality of battery cells each having a lithium-based chemistry.

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.

Lithium secondary battery

A lithium secondary battery according to the present invention includes: a positive electrode having a positive-electrode active material capable of occluding and releasing lithium ions; a negative electrode having a negative-electrode active material capable of occluding and releasing lithium ions; a separator interposed between the positive electrode and the negative electrode; and an electrolyte having lithium-ion conductivity. The positive-electrode active material contains a nickel-type lithium-containing complex oxide. The negative-electrode active material contains a graphite-type material having a reversible capacity of 350 mAh/g or more and an irreversible capacity of 30 mAh/g or less. A ratio Qc/Qa between an irreversible capacity Qc per unit area in a portion of the positive electrode that opposes the negative electrode and an irreversible capacity Qa per unit area in a portion of the negative electrode that opposes the positive electrode is equal to or greater than 0.50 but less than 1.13. As a result, the charge-discharge cycle characteristics can be improved while ensuring a high capacity.

Battery active material, nonaqueous electrolyte battery and battery pack

According to one embodiment, a battery active material includes a complex oxide containing Nb and Ti and an element M. In the active material, the molar ratio (M/Ti) of the element M to Ti satisfies the following formula (I): 0<M/Ti≦0.5 (I). In the complex oxide containing Nb and Ti, the molar ratio (Nb/Ti) of Nb to Ti satisfies the following formula (II): 0≦Nb/Ti≦5 (II). The element M is at least one selected from the group consisting of B, Na, Mg, Al, Si, S, P, K, Ca, Mo, W, Cr, Mn, Co, Ni, and Fe.

Cathode active material, cathode electrode and non-aqueous secondary battery

A cathode active material comprising a composition represented by the following general formula (1): Li a M1 x M2 y M3 z P m Si n O 4   (1) wherein M1 is at least one kind of element selected from the group of Mn, Fe, Co and Ni; M2 is any one kind of element selected from the group of Zr, Sn, Y and Al; M3 is at least one kind of element selected from the group of Zr, Sn, Y, Al, Ti, V and Nb and different from M2; “a” satisfies 0<a≦1; “x” satisfies 0<x≦2; “y” satisfies 0<y<1; “z” satisfies 0<z<1; “m” satisfies 0≦m<1; and “n” satisfies 0<n≦1.

Positive electrode active material for lithium secondary battery and use thereof

The present invention discloses a method for producing a positive electrode active material for a lithium secondary battery constituted by a lithium-nickel-cobalt-manganese complex oxide with a lamellar structure, the method including: (1) a step of preparing a starting source material for producing the complex oxide including a lithium supply source, a nickel supply source, a cobalt supply source, and a manganese supply source; (2) a step of pre-firing the starting source material by heating at a pre-firing temperature that has been set to a temperature lower than 800° C. and higher than a melting temperature of the lithium supply source; and (3) a step of firing the pre-fired material obtained in the pre-firing step by raising a temperature to a temperature range higher than the pre-firing temperature.

Nonaqueous secondary battery and method of using the same

A nonaqueous secondary battery having a positive electrode having a positive electrode mixture layer, a negative electrode, and a nonaqueous electrolyte, in which the positive electrode contains, as an active material, a lithium-containing transition metal oxide containing a metal element selected from the group consisting of Mg, Ti, Zr, Ge, Nb, Al and Sn, the positive electrode mixture layer has a density of 3.5 g/cm 3 or larger, and the nonaqueous electrolyte contains a compound having two or more nitrile groups in the molecule

Method for manufacturing positive electrode and power storage device

To suppress decomposition of lithium cobalt oxide and formation of a decomposition product. To suppress the reaction between oxygen in lithium cobalt oxide and a current collector. To obtain a power storage device having high charge and discharge capacity. In a method for manufacturing a power storage device, in forming a lithium cobalt oxide layer over a positive electrode current collector by a sputtering method using a target containing lithium cobalt oxide and a sputtering gas containing Ar, the positive electrode current collector is heated at a temperature at which c-axes of crystals of lithium cobalt oxide are aligned and cobalt oxide is not formed. The heating temperature of the positive electrode current collector is higher than or equal to 400° C. and lower than 600° C.

Nonaqueous electrolyte secondary battery

A nonaqueous electrolyte secondary battery disclosed in the present application includes: a positive electrode capable of absorbing and releasing lithium, containing a positive electrode active material composed of a lithium-containing transition metal oxide having a layered crystalline structure; and a negative electrode capable of absorbing and releasing lithium, containing a negative electrode active material composed of a lithium-containing transition metal oxide obtained by substituting some of Ti element of a lithium-containing titanium oxide having a spinel crystalline structure with one or more element different from Ti, wherein a retention of the negative electrode is set to be greater than a retention of the positive electrode, and an irreversible capacity rate of the negative electrode is set to be greater than an irreversible capacity rate of the positive electrode, whereby a discharge ends by negative electrode limitation.

Spray Pyrolysis Synthesis of Mesoporous Positive Electrode Materials for High Energy Lithium-Ion Batteries

A lithium metal oxide positive electrode material useful in making lithium-ion batteries that is produced using spray pyrolysis. The material comprises a plurality of metal oxide secondary particles that comprise metal oxide primary particles, wherein the primary particles have a size that is in the range of about 1 nm to about 10 μm, and the secondary particles have a size that is in the range of about 10 nm to about 100 μm and are uniformly mesoporous.

Cathode compositions for lithium-ion batteries

A lithium-ion battery has (a) an anode; (b) a cathode having a cathode composition of the formula Li[M 4 y M 5 1-2y Mn y ]O 2 , wherein 0.083<y<0.5 with the proviso that M 4 and M 5 do not include chromium, and wherein M 4 is Co and M 5 includes the combination of Li and Ni; and (c) an electrolyte.

Positive electrode material for a lithium-ion accumulator

A compound of formula Li a+y (M 1 (1−t) Mo t ) 2 M 2 b (O 1−x F 2x ) c wherein: M 1 is selected from the group consisting in Ni, Mn, Co, Fe, V or a mixture thereof; M 2 is selected from the group consisting in B, Al, Si, P, Ti, Mo; with 4≦a≦6; 0<b≦1.8; 3.8≦c≦14; 0≦x<1; −0.5≦y≦0.5; 0≦t≦0.9; b/a<0.45; the coefficient c satisfying one of the following relationships: c=4+y/2+z+2t+1.5b if M 2 is selected from B and Al; c=4+y/2+z+2t+2b if M 2 is selected from Si, Ti and Mo; c=4+y/2+z+2t+2.5b if M 2 is P; with z=0 if M 1 is selected from Ni, Mn, Co, Fe and z=1 if M 1 is V.

Method for manufacturing a lithium complex metal oxide

A method for producing a lithium mixed metal oxide, which includes mixing a lithium compound, metallic Ni or a compound thereof, and one or more transition metals selected from the group consisting of Mn, Co, Ti, Cr and Fe or a compound thereof; and calcining the obtained raw material mixture under an atmosphere of the concentration of carbon dioxide of from 1% by volume to 15% by volume at 630° C. or higher.

Positive electrode active material for lithium ion battery, method for producing the same, positive electrode for lithium ion battery, and lithium ion battery

A positive electrode active material for a lithium ion battery includes a material represented by chemical formula LiMPO 4 where M includes at least one of iron, manganese, cobalt, and nickel. Particles of the positive electrode active material have a diameter d in the range of 10 nm to 200 nm, the diameter d being determined by observation under a transmission electron microscope. A ratio d/D of the diameter d to a crystallite diameter D is in the range of 1 to 1.35, the crystallite diameter D being determined from a half width measured by X-ray diffraction. The positive electrode active material is coated with carbon, an amount of the carbon being in the range of 1 weight percent to 10 weight percent.

MANUFACTURING METHOD FOR LiCoO2, SINTERED BODY AND SPUTTERING TARGET

Provided is a method for stably manufacturing high-density sintered LiCoO 2 . Said method uses a CIP-and-sintering method, which has a forming step using cold hydrostatic pressing and a sintering step. The pressing force is at least 1000 kg/cm 2 , the sintering temperature is between 1050° C. and 1120° C., and the sintering time is at least two hours. This makes it possible to stably manufacture sintered LiCoO 2 with a relative density of at least 90%, a resistivity of at most 3 kΩ·cm, and a mean grain diameter between 20 and 50 μm.

Nonaqueous electrolytic solution and nonaqeuous-electrolyte secondary battery

An object of the invention is to provide a nonaqueous electrolytic solution which is capable of bringing about a nonaqueous-electrolyte secondary battery improved in initial charge capacity, input/output characteristics, and impedance characteristics. The invention relates to a nonaqueous electrolytic solution which comprises: a nonaqueous solvent; LiPF 6 ; and a specific fluorosulfonic acid salt, and to a nonaqueous-electrolyte secondary battery containing the nonaqueous electrolytic solution.

Positive Electrode Active Material For Lithium-Ion Batteries, Positive Electrode For Lithium-Ion Batteries, And Lithium-Ion Battery

The present invention provides a positive electrode active material for lithium ion battery which attains a lithium ion battery having high safety. The positive electrode active material for lithium ion battery has a layer structure represented by the compositional formula: Li x (Ni y M 1-y )O z (wherein M represents Mn and Co, x denotes a number of 0.9 to 1.2, y denotes a number of 0.6 to 0.65, and z denotes a number of 1.8 to 2.4). When a lithium ion battery using a positive electrode mix produced by the positive electrode active material, a binder, and a conductive material in a ratio by weight of 91%, 4.2%, and 4.8%, respectively, is charged to 4.3V, and then an electrolytic solution prepared by dissolving 1 M—LiPF 6 in a mixture solvent of ethylene carbonate (EC)-dimethyl carbonate (DMC) (volume ratio 1:1) is used based on 1.0 mg of the positive electrode mix to measure the obtained lithium ion battery by differential scanning calorimetry (DSC) performed at a temperature rise rate of 5° C./min, a difference ΔT=T 1 −T 2 between a first exothermic peak temperature T 1 (° C.) and a temperature T 2 at which an exothermic strength is ½ of the first exothermic peak strength (T 2< T 1 ) satisfies the equation: ΔT≧10 (° C.).

Positive Electrode Active Material For Lithium-Ion Battery, Positive Electrode For Lithium-Ion Battery, And Lithium-Ion Battery

The present invention provides a positive electrode active material for lithium ion battery having good rate characteristics. The positive electrode active material for lithium ion battery has a layer structure expressed by a composition formula: Li x (Ni y Mi 1-y )O z , wherein M represents Mn and Co, x represents 0.9 to 1.2, y represents 0.6 to 0.9, and z represents 1.8 to 2.4. The positive electrode active material has a particle size ratio D50P/D50 of 0.60 or more, wherein D50 is the average secondary particle size of the positive electrode active material powder, and D50P is the average secondary particle size of the positive electrode active material powder after pressing at 100 MPa. The positive electrode active material contains 3% or less particles having a particle size of 0.4 μm or less in terms of the volume ratio after pressing at 100 MPa.

Multiple inorganic compound structure and use thereof, and method of producing multiple inorganic compound structure

An multiple inorganic compound structure according to the present invention is a multiple inorganic compound structure including a main crystalline phase, which main crystalline phase contains a sub crystalline phase inside the main crystalline phase, the sub crystalline phase having a non-metallic element arrangement identical to that of the main crystalline phase. A metal element identical to at least one metallic element included in the sub crystalline phase is formed as a solid solution in the main crystalline phase, and its crystal orientation in a main crystalline phase part is identical to that of the sub crystalline phase.

Process for preparing electroactive insertion compounds and electrode materials obtained therefrom

A process for preparing an at least partially lithiated transition metal oxyanion-based lithium-ion reversible electrode material, which includes providing a precursor of said lithium-ion reversible electrode material, heating said precursor, melting same at a temperature sufficient to produce a melt including an oxyanion containing liquid phase, cooling said melt under conditions to induce solidification thereof and obtain a solid electrode that is capable of reversible lithium ion deinsertion/insertion cycles for use in a lithium battery. Also, lithiated or partially lithiated oxyanion-based-lithium-ion reversible electrode materials obtained by the aforesaid process.

Positive electrode active material

A lithium ion secondary battery has a high cycle retention rate, and has its battery capacity increased. A positive electrode active material is used which includes a crystal phase having a structure formed by collecting a plurality of crystallites 101 , and powder particles containing amorphous phases 103 a and 103 b formed between the crystallites 101 . The amorphous phases 103 a and 103 b contain one or more kinds of metal oxides selected from the group consisting of vanadium oxide, iron oxide, manganese oxide, nickel oxide and cobalt oxide. The crystal phase and the amorphous phase 103 a and 103 b are capable of intercalation and deintercalation of lithium ions.

Plating technique for electrode

Articles and methods for forming protected electrodes for use in electrochemical cells, including those for use in rechargeable lithium batteries, are provided. In some embodiments, the articles and methods involve an electrode that does not include an electroactive layer, but includes a current collector and a protective structure positioned directly adjacent the current collector, or separated from the current collector by one or more thin layers. Lithium ions may be transported across the protective structure to form an electroactive layer between the current collector and the protective structure. In some embodiments, an anisotropic force may be applied to the electrode to facilitate formation of the electroactive layer.

Cathode active material composition, cathode prepared by using the same, and lithium battery including the cathode

A cathode active material composition includes a cathode active material, a water-based binder, and a transition metal oxide. A cathode is prepared using the cathode active material composition. A lithium battery includes the cathode. The lithium battery has improved high-rate characteristics and lifespan characteristics by preventing an increase in internal resistance due to the corrosion of an electrode base material.

Lithium secondary battery using ionic liquid

A flame-retardant lithium secondary battery is provided that has better battery performance and higher safety than conventional batteries. The lithium secondary battery uses a positive electrode that includes a positive electrode active material of the general formula (I) below, and a nonaqueous electrolytic solution in which an ionic liquid that contains bis(fluorosulfonyl)imide anions as an anionic component is used as the solvent, (1) LiNixMny O 4 , wherein x and y are values that satisfy the relations x+y= 2, and x:y= 27.572.5 to 22.577.5.

Positive-electrode material for lithium secondary-battery, process for producing the same, positive electrode for lithium secondary battery, and lithium secondary battery

The invention relates to: a lithium-transition metal compound powder for a positive-electrode material of lithium secondary batteries, which is a powder that comprises a lithium-transition metal compound having a function of being capable of an insertion and elimination of lithium ions, wherein the particles in the powder contain, in the inner part thereof, a compound that, when analyzed by an SEM-EDX method, has peaks derived from at least one element selected from the Group-16 elements belonging to the third or later periods of the periodic table and at least one element selected from the Group-5 to Group-7 elements belonging to the fifth and sixth periods of the periodic table; a process for producing the powder; a positive electrode for lithium secondary batteries; and a lithium secondary battery.

Lithium ion secondary battery

Disclosed is a lithium ion secondary battery having a positive electrode, a negative electrode and a non-aqueous electrolyte composition (electrolytic solution), characterized in that: the positive electrode includes a positive electrode active material represented by: aLi[Li 1/3 M1 2/3 ]O 2 .(1−a)LiM2O 2 (where M1 represents at least one kind of metal element selected from the group consisting of Mn, Ti, Zr and V; M2 represents at least one kind of metal element selected from the group consisting of Ni, Co, Mn, Al, Cr, Fe, V. Mg and Zn; and a represents a composition ratio and satisfies a relationship of 0<a<1); the negative electrode includes a negative electrode active material containing silicon; and the non-aqueous electrolyte composition includes a lithium salt (C n F 2n+1 SO 2 )(C m F 2m+1 SO 2 )NLi (where in and n each independently represent an integer of 2 or more as a support electrolyte. This lithium ion secondary battery attains a high capacity and good cycle characteristics.

Cathode active material and lithium secondary battery comprising the same

Disclosed herein is a cathode active material for a secondary battery, which includes a combination of one or more selected from compounds represented by Formula 1, one or more selected from compounds represented by Formula 2, and one or more selected from compounds represented by Formula 3, (1-s-t)[Li(Li a Mn (i-a-x-y) Ni x Co y )O 2 ]*s[Li 2 CO 3 ]*t[LiOH]  (1) Li(Li b Mn 2-b) O 4   (2) (1-u)LiFePO 4 *u C   (3) In these formulae, 0<a<0.3; 0<x<0.8; 0<y<0.6; 0<s<0.05; 0<t<0.05; 0<b<0.3; and 0.01<u<0.1, wherein a, b, x and y denote mole ratios, and s, t and u denote weight ratios. The disclosed cathode active material has long lifespan and storage characteristics at room temperature and/or high temperature and excellent safety, and is effectively used to fabricate a non-aqueous electrolyte type high power lithium secondary battery having excellent rate properties and power characteristics.

High Density Lithium Cobalt Oxide for Rechargeable Batteries

The disclosure relates to positive electrode material used for Li-ion batteries, a precursor and process used for preparing such materials, and Li-ion battery using such material in its positive electrode. The disclosure describes a higher density LiCoOpositive elecdtrode material for lithium secondary batteries, with a specific surface area (BET) below 0.2 m/g, and a volumetric median particle size (d50) of more than 15 μm. This product has improved specific capacity and rate-capability. Other embodiments of the disclosure are an aggregated Co(OH), which is used as a precursor, the electrode mix and the battery manufactured using above-mentioned LiCoO. 1. A precursor compound of a lithium cobalt oxide powder , wherein the precursor compound consists of either one or more of powderous non-sintered agglomerated cobalt oxide , hydroxide and oxy-hydroxide , and has a secondary particle size with a d50 of more than 15 μm , and wherein the lithium cobalt oxide powder is for use as an active positive electrode material in lithium-ion batteries , has a d50 of more than 15 μm , a specific surface area (BET) of less than 0.2 m/g , a Li to Co atomic ratio between 0.980 and 1.010 , and an OH content between 0.010 and 0.015 wt %.2. The precursor compound of claim 1 , wherein the secondary particles are essentially spherical.3. The precursor compound of claim 1 , wherein the lithium cobalt oxide powder further comprises doping elements and has a doping elements to Co atomic ratio between 0.001 and 0.05 claim 1 , and a Li to the sum of Co and dopants atomic ratio between 0.980 and 1.010.4. The precursor compound of claim 1 , wherein the lithium cobalt oxide powder further comprises Mg as a doping element and has a Mg to Co atomic ratio between 0.001 and 0.05 claim 1 , and a Li to the sum of Co and Mg atomic ratio between 0.980 and 1.010.5. The precursor compound of claim 1 , wherein the lithium cobalt oxide powder is a first powder in a powder mixture that is used as an active ...

Non-aqueous secondary battery

A non-aqueous secondary battery contains a positive electrode, a negative electrode, a separator and a non-aqueous electrolytic solution. The positive electrode contains a layered structure lithium-containing compound oxide, or a spinel lithium-containing compound oxide containing manganese as an active material. The non-aqueous electrolytic solution contains at least one additive selected from a sulfonic acid anhydride, a sulfonate ester derivative, a cyclic sulfate derivative and a cyclic sulfonate ester derivative, and a vinylene carbonate or a derivative of the vinylene carbonate.

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.

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

An electrolyte for a lithium secondary battery, the electrolyte including a lithium salt, a non-aqueous organic solvent, and a polar additive based on a substituted hetero-bicyclic compound. Oxidation of the electrolyte is prevented by formation of a polar thin film on a surface portion of the positive electrode, which facilitates transfer of lithium ions. The lithium secondary batteries using the electrolyte have excellent high temperature life characteristics and high temperature conservation characteristics.

Non-aqueous electrolyte secondary battery

In a non-aqueous electrolyte secondary battery, a positive electrode active material includes a carbon-coated lithium vanadium phosphate and a lithium nickel composite oxide. A negative electrode active material includes a carbon-based active material capable of intercalating and deintercalating lithium ions. When a first charge capacity of a negative electrode per unit area is “x” (mAh/cm 2 ), and a first charge capacity of a positive electrode per unit area is “y” (mAh/cm 2 ), a relation of “x” and “y” satisfies 0.6≦y/x≦0.92.

CARBOPHOSPHATES AND RELATED COMPOUNDS

The present invention generally relates to carbophosphates and other compounds. Such compounds may be used in batteries and other electrochemical devices, or in other applications such as those described herein. One aspect of the invention is generally directed to carbophosphate compounds, i.e., compounds containing carbonate and phosphate ions. For example, according to one set of embodiments, the compound has a formula A(M)(PO)(CO), where M comprises one or more cations. A may include one or more alkali metals, for example, lithium and/or sodium. In some cases, x is greater than about 0.1, a is between about 0.1 and about 5.1, and b is between about 0.1 and about 5.1. In certain embodiments, the compound may have a unit cell atomic arrangement that is isostructural to to unit cells of the minerals sidorenkite, bonshtedtite, bradleyite, crawfordite, or ferrotychite. In some embodiments, the compound may have a formula A(M)(YO)(XO), where A comprises one or more alkali metals, M comprises one or more cations, X includes B, C, and/or N, and Y includes Si, P, As, S, V, Nb, Mo, and/or W. In some cases, x is greater than about 0.1, a is between about 0.1 and about 5.1, and b is between about 0.1 and about 5.1. Other aspects of the invention are generally directed to techniques for making or using such compounds, kits involving such compounds, and the like. 13-. (canceled)4. The compound of claim 6 , wherein M comprises an alkaline earth metal.5. (canceled)7. The compound of claim 6 , wherein M comprises one or more bivalent or trivalent cations.8. The compound of claim 6 , wherein M comprises a transition metal.9. The compound of claim 6 , wherein M comprises one or more of Fe claim 6 , Mn claim 6 , Co claim 6 , Ni claim 6 , V claim 6 , Cr claim 6 , Cu claim 6 , Ti claim 6 , Bi claim 6 , Sn claim 6 , Sb claim 6 , or Mo.10. The compound of claim 6 , wherein the compound has a unit cell atomic arrangement that is isostructural to a sidorenkite unit cell claim 6 , a ...

NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

There is provided a nonaqueous electrolyte secondary battery having high capacity in which the reduction in the capacity of the battery due to the irreversible capacity in the first charge and discharge is suppressed using a high capacity positive electrode. The nonaqueous electrolyte secondary battery according to the exemplary embodiment includes a positive electrode and a negative electrode including at least one negative electrode active material selected from the group consisting of Si, a Si oxide and carbon, wherein the positive electrode includes a positive electrode active material including an oxide capable of absorbing and releasing lithium and a transition metal oxide, the transition metal oxide being represented by LiMO(wherein M is at least one of Cu and Ni) and including a square-planar coordination MOstructure, the square-planar coordination MOstructure forming a one-dimensional chain which shares an edge formed by two opposing oxygen atoms, wherein the relation Z≦Y is satisfied provided that Y represents the first charge capacity of the negative electrode, and Z represents the first charge capacity of the positive electrode. 1. A nonaqueous electrolyte secondary battery comprising a positive electrode and a negative electrode comprising at least one negative electrode active material selected from the group consisting of Si , a Si oxide and carbon ,{'sub': 2', '2', '4', '4, 'wherein the positive electrode comprises a positive electrode active material comprising an oxide capable of absorbing and releasing lithium and a transition metal oxide, the transition metal oxide being represented by LiMO(wherein M is at least one of Cu and Ni) and including a square-planar coordination MOstructure, the square-planar coordination MOstructure forming a one-dimensional chain which shares an edge formed by two opposing oxygen atoms,'}wherein a relation Z≦Y is satisfied provided that Y represents a first charge capacity of the negative electrode, and Z represents a ...

LITHIUM-TRANSITION METAL COMPLEX COMPOUNDS HAVING Nth ORDER HIERARCHICAL STRUCTURE, METHOD OF PREPARING THE SAME AND LITHIUM BATTERY COMPRISING AN ELECTRODE COMPRISING THE SAME

A lithium-transition metal complex compound has an norder hierarchical structure in which n type structures represented by at least one unit of aorder units in a range of 1×10-(a+5) m to 10×10-(a+5) m exist in a complex form, wherein n is a natural number that is 2 or greater, and a is a natural number in a range of 1 to 5. The lithium-transition metal complex may be prepared by heat-treating a mixture including a lithium source, a transition metal source, and solvent in contact with a natural material having a hierarchical structure. A lithium battery includes an electrode including the lithium-transition metal complex compound having the norder hierarchical structure. The lithium battery can have improved rapid charging characteristics, high power characteristics, and cycle characteristics. 1. A method of preparing a lithium-transition metal complex compound , the method comprising:providing a mixture comprising a lithium source, a transition metal source, and solvent;providing a natural material having a hierarchical structure as a template; and{'sup': th', 'th', '−(a+5)', '−(a+5), 'heat treating the mixture and the natural material while the mixture and the natural material contact each other to obtain a lithium-transition metal complex compound having an norder hierarchical structure in which n type structures represented by at least one unit of aorder units in the range of 1×10m to 10×10m exist in a complex form, wherein n is a natural number that is 2 or greater, and a is a natural number in a range of 1 to 5.'}2. The method of claim 1 , wherein the heat treating is performed at a heating rate of about 0.1° C./min to about 5° C./min to a final temperature of about 300° C. to about 1200° C. for about 0.5 to about 200 hours in an air atmosphere.3. The method of claim 1 , wherein the heat treating comprises a first heat treatment process in which a lithium-transition metal complex is synthesized and the natural material is carbonized to form a lithium-transition ...

POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND PRODUCTION METHOD FOR SAME, PRECURSOR FOR POSITIVE ELECTRODE ACTIVE MATERIAL, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING POSITIVE ELECTRODE ACTIVE MATERIAL

Provided is a cathode active material for a non-aqueous electrolyte secondary battery capable of obtaining high initial discharge capacity and good output characteristics at low temperature. In order to achieve this, a cathode active material that is a lithium nickel composite oxide composed of secondary particles that are an aggregate of primary particles is expressed by the general expression: Li(NiCoAl)MO(where 0.98≦w≦1.10, 0.05≦x≦0.3, 0.01≦y≦0.1, 0≦z≦0.05, and M is at least one metal element selected from a group consisting of Mg, Fe, Cu, Zn and Ga), and where the crystallite diameter at (003) plane of that lithium nickel composite oxide that is found by X-ray diffraction and the Scherrer equation is within the range of 1200 {acute over (Å)} to 1600 {acute over (Å)} is used as the cathode material. 1. A cathode active material for a non-aqueous electrolyte secondary battery , comprising: {'br': None, 'sub': w', '1-x-y', 'x', 'y', '1-z', 'z', '2, 'Li(NiCoAl)MO'}, 'secondary particles that are an aggregate of primary particles of a lithium nickel composite oxide expressed by the general expressionwhere 0.98≦w≦1.10, 0.05≦x≦0.3, 0.01≦y≦0.1, 0≦z≦0.05, and M is at least one metal element chosen from Mg, Fe, Cu, Zn and Ga, andwhere the crystallite diameter at (003) plane of the lithium nickel composite oxide that is found by X-ray diffraction and the Scherrer equation is within the range of 1200 {acute over (Å)} to 1600 {acute over (Å)}.2. The cathode active material for a non-aqueous electrolyte secondary battery according to wherein the crystallite diameter at (003) plane is within the range of 1200 {acute over (Å)} to 1500 {acute over (Å)}.3. A precursor of a cathode active material for a non-aqueous electrolyte secondary battery claim 1 , comprising: {'br': None, 'sub': 1-x-y', 'x', 'y', '1-z', 'z', '2, '(NiCoAl)M(OH)'}, 'a nickel composite hydroxide expressed by the general expressionwhere 0.05≦x≦0.3, 0.01≦y≦0.1, 0≦z≦0.05, and M is at least one metal element ...

Cathode active material for overcharge protection in secondary lithium batteries

Provided herein is an electrode active material comprising a lithium metal oxide and an overcharge protection additive having an operating voltage higher than the operating voltage of the lithium metal oxide.

LITHIUM COMPOSITE COMPOUND PARTICLES AND PROCESS FOR PRODUCING THE SAME, AND NON-AWUEOUS ELECTROLYTE SECONDARY BATTERY

The present invention aims to provide lithium composite compound particles which can exhibit good cycle characteristics and an excellent high-temperature storage property when used as a positive electrode active substance of a secondary battery, and a secondary battery using the lithium composite compound particles. The present invention relates to lithium composite compound particles having a composition represented by the compositional formula: LiNiCoMnMO, in which the lithium composite compound particles have an ionic strength ratio A (LiO/NiO) of not more than 0.5 and an ionic strength ratio B (LiCO/Ni) of not more than 20 as measured on a surface of the respective lithium composite compound particles using a time-of-flight secondary ion mass spectrometer. 2. The lithium composite compound particles according to claim 1 , wherein the lithium composite compound particles have an average secondary particle diameter of 1.0 to 30 μm.3. The lithium composite compound particles according to claim 1 , wherein the lithium composite compound particles have a powder pH value of not more than 11.0 as measured in a 2% by weight suspension prepared by dispersing the lithium composite compound particles in water.4. The lithium composite compound particles according to claim 1 , wherein the lithium composite compound particles have a carbon content of not more than 200 ppm.5. The lithium composite compound particles according to claim 1 , wherein the lithium composite compound particles have a sulfur content of not more than 100 ppm claim 1 , an ionic strength ratio C (LiSO/NiO) of not more than 0.4 and a sodium content of not more than 100 ppm.6. The lithium composite compound particles according to claim 1 , wherein the lithium composite compound particles have a lithium carbonate content of not more than 0.10% by weight and a lithium hydroxide content of not more than 0.15% by weight.7. The lithium composite compound particles according to claim 1 , wherein the lithium ...

CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY CONTAINING PHOSPHATE FLUORIDE AND PREPARATION METHOD THEREOF

Provided is a cathode active material for lithium secondary battery containing the compound of Formula 1 doped or coated with phosphate fluoride, prepared by adding phosphate fluoride to the precursor compound and subjecting to sintering and heat-treatment process, which has improved lifecycle and stability so that it can be used to improve efficiency of lithium secondary battery: 1. A cathode active material for lithium secondary battery comprising the compound of Formula 1 which is further doped or coated with phosphate fluoride:{'br': None, 'sub': a', 'x', 'y', 'z', '(1-x-y-z)', '2, 'LiNiCoM′MnO\u2003\u2003Formula 1'}wherein M′ is selected from the group consisting of Ca, Mg, Al, Ti, Mn, Fe, Co, Ni, Cu, Zn, Y, Zr, Nb, B, and a combination thereof; and 0.4 Подробнее

NOVEL ELECTRODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME

Disclosed are an electrode active material for lithium secondary batteries, comprising at least one selected from compounds represented by the following formula 1, and a lithium secondary battery comprising the same. 1. An electrode active material for secondary batteries comprising at least one selected from compounds represented by the following formula 1:{'br': None, 'sub': x', '4-y', 'y', '6-z', 'z, 'LiMoMOA\u2003\u2003(1)'}wherein0≦x≦2;0≦y≦0.5;0≦z≦0.5;M is a metal cation having an oxidation number of +2 to +4; andA is a negative monovalent or negative bivalent anion.2. The electrode active material according to claim 1 , wherein the electrode is a cathode.323. The electrode active material according to claim 1 , wherein x satisfies 0≦x 1.4. The electrode material according to claim 1 , wherein M is at least one element selected from the group consisting of W claim 1 , Nb claim 1 , V claim 1 , Al claim 1 , Mg claim 1 , Ti claim 1 , Co claim 1 , Ni and Mn.5. The electrode active material according to claim 1 , wherein A is at least one selected from the group consisting of halogens claim 1 , S and N.6. An electrode in which the electrode active material according to is applied to a current collector.7. A lithium secondary battery comprising the electrode according to .8. An electrode module comprising the lithium secondary battery according to as a unit battery.9. A power storage device comprising the electrode module according to . The present invention relates to a novel electrode active material and a lithium secondary battery comprising the same. More specifically, the present invention relates to a novel electrode active material that undergoes neither structural variation even during repeated charge and discharge nor structural collapse during over-charge, and a lithium secondary battery comprising the same.Technological development and increased demand for mobile equipment have led to a rapid increase in the demand for secondary batteries as energy sources ...

Positive electrode for lithium secondary battery, and lithium secondary battery employing the same

The invention relates to positive electrode for lithium secondary battery which comprises an active material and a conductive material, wherein the active material comprises a lithium-transition metal compound which has a function of being capable of insertion and desorption of lithium ion, the lithium-transition metal compound gives a surface-enhanced Raman spectrum which has a peak at 800-1,000 cm −1 , and the conductive material comprises carbon black which has a nitrogen adsorption specific surface area (N 2 SA) of 70-300 m 2 /g and an average particle diameter of 10-35 nm, and a lithium secondary battery which employs the same.

Positive Electrode Active Material for Lithium-Ion Battery and Lithium-Ion Battery

Provided is a lithium ion battery wherein the content of an iron element contained in a positive electrode active material (measured with an ICP emission spectrophotometer) is 10 ppm or more, and magnetic materials having a size of 0.70 times or greater than the thickness of a separator layer are substantially not included in order to provide a lithium ion battery which has small voltage drop during a charge state or under storage at high temperatures.

HIGH ENERGY/POWER DENSITY NICKEL OXIDE/HYDROXIDE MATERIALS AND NICKEL COBALT OXIDE/HYDROXIDE MATERIALS AND PRODUCTION THEREOF

According to one embodiment, a material includes a nickel oxide/hydroxide active film, wherein the nickel oxide/hydroxide active film has a physical characteristic of maintaining greater than about 80% charge over greater than 500 charge/discharge cycles, and wherein the nickel oxide/hydroxide active film has a physical characteristic of storing electrons at greater than about 0.5 electron per nickel atom. 1. A material , comprising:a nickel oxide/hydroxide active film, wherein the nickel oxide/hydroxide active film has a physical characteristic of maintaining greater than about 80% charge over greater than 500 charge/discharge cycles, and wherein the nickel oxide/hydroxide active film has a physical characteristic of storing electrons at greater than about 0.5 electron per nickel atom.2. The material of claim 1 , wherein the nickel oxide/hydroxide active film has a thickness of about 20 to about 200 nm.3. The material of claim 1 , wherein the nickel oxide/hydroxide active film has a deposition thickness that varies less than about ±1 nm along all codeposited portions thereof claim 1 , wherein the thickness of the nickel oxide/hydroxide active film is in a range of about 50 to about 100 nm.4. The material of claim 1 , wherein the nickel oxide/hydroxide film has a charge rate of greater than about 100 C per hour.5. The material of claim 1 , wherein the nickel oxide/hydroxide film includes cobalt.6. The material of claim 5 , wherein the nickel oxide/hydroxide active film has a physical characteristic of maintaining greater than about 90% charge over greater than about 800 cycles.7. The material of claim 5 , wherein the nickel oxide/hydroxide active film comprises a cobalt (Co) to nickel (Ni) ratio of about 2:1 to about 1:2.8. The material of claim 5 , wherein the nickel oxide/hydroxide active film is capable of a 100% depth of discharge at varying discharge rates.9. The material of claim 1 , further comprising a substrate upon which the nickel oxide/hydroxide active ...

Positive electrode materials for lithium ion batteries having a high specific discharge capacity and processes for the synthesis of these materials

Positive electrode active materials are described that have a very high specific discharge capacity upon cycling at room temperature and at a moderate discharge rate. Some materials of interest have the formula Li 1+x Ni 60 Mn β Co γ O 2 , where x ranges from about 0.05 to about 0.25, α ranges from about 0.1 to about 0.4, β range's from about 0.4 to about 0.65, and γ ranges from about 0.05 to about 0.3. The materials can be coated with a metal fluoride to improve the performance of the materials especially upon cycling. Also, the coated materials can exhibit a very significant decrease in the irreversible capacity lose upon the first charge and discharge of the cell. Methods for producing these materials include, for example, a co-precipitation approach involving metal hydroxides and sol-gel approaches.

Positive Electrode Active Material For Lithium-Ion Battery, A Positive Electrode For Lithium-Ion Battery, And Lithium-Ion Battery

The present invention provides a positive electrode active material for lithium ion batteries having excellent battery property. 1. A positive electrode active material for lithium ion batteries , represented by composition formula: LiNiMO , whereinM is Co as an essential component and at least one species selected from a group consisting of Sc, Ti, V, Cr, Mn, Fe, Cu, Zn, Ga, Ge, Al, Bi, Sn, Mg, Ca, B and Zr, 0.9≦x≦1.2, 00.05, andan average particle size (D50) is 5 μm to 15 μm.2. The positive electrode active material for lithium ion batteries of claim 1 , wherein the average particle size (D50) is 7 μm to 13 μm.3. The positive electrode active material for lithium ion batteries of claim 1 , wherein M is at least one species selected from a group consisting of Mn and Co.4. The positive electrode active material for lithium ion batteries of claim 1 ,wherein α>0.15.5. The positive electrode active material for lithium ion batteries of claim 4 , wherein α>0.20.6. The positive electrode active material for lithium ion batteries of claim 1 ,wherein D90 is 20 μm or less in particle size distribution.7. A positive electrode for lithium ion batteries comprising the positive electrode active material for lithium ion batteries of .8. A lithium ion battery comprising the positive electrode for lithium ion batteries of . The present invention relates to a positive electrode active material for lithium ion batteries, a positive electrode for lithium ion batteries, and a lithium ion battery.In general, lithium-containing transition metal oxides are used for a positive electrode active material for lithium ion batteries. In particular, they are lithium cobaltate (LiCoO), lithium nickelate (LiNiO), lithium manganite (LiMnO) and the like. A conjugation of the lithium-containing transition metal oxides is proceeding in order to improve properties such as high volume, cycle characteristic, storage characteristic, decreased internal resistance, rate performance, and safety. ...

IRON-DOPED LITHIUM TITANATE AS A CATHODE MATERIAL

In order to increase the electrochemical stability of a cathode material for lithium cells, the cathode material includes an iron-doped lithium titanate. A method for manufacturing a lithium titanate includes: a) calcinating a mixture of starting materials to form an iron-doped lithium titanate; and b) at least one of electrochemical insertion and chemical insertion of lithium into the iron-doped lithium titanate. 1. A cathode material for a lithium cell , comprising:an iron-doped lithium titanate.2. The cathode material as recited in claim 1 , wherein the lithium titanate is based on the general chemical formula:{'br': None, 'sub': 4-y', '3y', '5-2y', '12, 'LiFeTiO'}wherein 0.2≦y≦1.3. The cathode material as recited in claim 2 , wherein the lithium titanate includes inserted lithium.4. The cathode material as recited in claim 1 , wherein the lithium titanate is based the general chemical formula:{'br': None, 'sub': 4+x-y', '3y', '5-2y', '12, 'LiFeTiO'}wherein 0.2≦y≦1 and 0≦x≦3.5. The cathode material as recited in claim 1 , wherein the lithium titanate is based on the general chemical formula:{'br': None, 'sub': 4+x-y-z', '3y', 'z', '5-2y-m', 'm', '12, 'LiFeCuTi(Nb,Ta)O'}wherein0≦x≦3,0.2≦y≦1,0≦z≦0.2 and0≦m≦0.1.6. A method for manufacturing a lithium titanate claim 1 , comprising:a) calcinating a mixture of starting materials to form an iron-doped lithium titanate, andb) at least one of electrochemical insertion and chemical insertion of lithium into the iron-doped lithium titanate.7. The method as recited in claim 6 , wherein an electrochemical lithium insertion is performed by installing the iron-doped lithium titanate as the sole material for a cathode in a galvanic charging cell which includes a lithium-based anode and a lithium-based electrolyte.8. The method as recited in claim 6 , wherein the mixture of starting materials includes at least one lithium-containing starting compound claim 6 , at least one titanium-containing starting compound and at least one ...

Precursor, process for production of precursor, process for production of active material, and lithium ion secondary battery

Active material is obtained by sintering a precursor, has a layered structure and is represented by the following formula (1). The temperature at which the precursor becomes a layered structure compound in its sintering in atmospheric air is 450° C. or less. Alternatively, the endothermic peak temperature of the precursor when its temperature is increased from 300° C. to 800° C. in its differential thermal analysis in the atmospheric air is 550° C. or less. Li y Ni a Co b Mn c M d O x F z   (1) In formula (1), the element M is at least one of Al, Si, Zr, Ti, Fe, Mg, Nb, Ba, and V and 1.9≦(a+b+c+d+y)≦2.1, 1.0≦y≦1.3, 0<a≦0.3, 0≦b≦0.25, 0.3≦c≦0.7, 0≦d≦0.1, 1.9≦(x+z)≦2.0, and 0≦z≦0.15 are satisfied.

Positive active material for rechargeable lithium battery and rechargeable lithium battery including same

Disclosed is a positive active material for a rechargeable lithium battery and a rechargeable lithium battery including the positive active material. The positive active material includes a lithiated intercalation compound capable of reversibly intercalating and deintercalating lithium and a metal oxide represented by the following Chemical Formula 1. Li x M y M′ 1-y O 4   [Chemical Formula 1] In the above Chemical Formula M, M′, x, and y are the same as defined in the detailed description. The positive active material easily provides lithium needed for the irreversible chemical/physical reaction at a negative electrode during the initial charge reaction, and thus increases charge capacity of a battery, decreases its irreversible capacity, and resultantly improves its cycle life.

Aluminum Dry-Coated and Heat Treated Cathode Material Precursors

Aluminum dry-coated and heat treated cathode material precursors. A particulate precursor compound for manufacturing an aluminum coated lithium transition metal (M)-oxide powder usable as an active positive electrode material in lithium-ion batteries includes a transition metal (M)-oxide core and a non-amorphous aluminum oxide coating layer covering the core. By providing a heat treatment process for mixed metal precursors that may be combined with an aluminum thy-coating process, novel aluminum containing precursors that may be used to form high quality nickel based cathode materials are obtained. The aluminum dry-coated and heat treated precursors include particles have, compared to prior art precursors, relatively low impurity levels of carbonate and/or sulfide, and can be produced at lower cost. 115-. (canceled)16. A particulate precursor compound for manufacturing an aluminum coated lithium transition metal (M)-oxide powder usable as an active positive electrode material in lithium-ion batteries , each particle of said precursor compound comprising:a transition metal (M)-oxide core; and{'sub': 2', '3, 'a non-amorphous aluminum oxide AlOcoating layer covering said core.'}17. The particulate precursor compound of claim 16 , wherein said particulate precursor compound has a general formula (M-oxide).(AlO)b claim 16 , wherein a+(2*b)=1 claim 16 , and wherein said transition metal (M) is NiMnCo claim 16 , wherein 0.3≦x≦0.9 claim 16 , 0≦y≦0.45 claim 16 , and 0 Подробнее

Cathode active material and lithium secondary battery comprising the same

Disclosed is a cathode active material for secondary batteries comprising one or more compounds having a layered-crystal structure, represented by the following Formula 1, wherein a transition metal layer contains Li, in an amount lower than 20%, based on a total amount of a transition metal site, and a ratio of Ni positioned in a lithium layer, that is, a cation mixing ratio is 1% to 4.5%, based on a total amount of a lithium site in the lithium layer to stably support the layered-crystal structure: (1-s-t)[Li(Li a Mn (1-a-x-y) Ni x Co y )O 2 ]*s [Li 2 CO 3 ]*t[LiOH] (1), wherein 0<a<0.2; 0<x<0.9; 0<y<0.5; a+x+y<1; 0<s<0.03; and 0<t<0.03. The cathode active material exhibits long lifespan and superior stability at room temperature and high temperatures in spite of repeated charge and discharge at a high current.

Rechargeable lithium battery

A rechargeable lithium battery includes a negative electrode including a negative active material, a positive electrode including a positive active material, and an electrolyte including LiPO 2 F 2 and a sultone-based compound.

METHOD FOR MANUFACTURING ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY MANUFACTURED THEREBY AND LITHIUM SECONDARY BATTERY USING SAME

The present invention provides a method for manufacturing an anode active material for a lithium secondary battery comprising the following steps of: 1. A method for manufacturing an anode active material for a lithium secondary battery comprising the following steps of: {'br': None, 'sub': x1', '1−y1−z1−w1', 'y1', 'z1', 'w1', '2, 'Li[NiCoMnM]O\u2003\u2003Chemical Formula 1'}, 'a) simultaneously mixing a first metallic salt aqueous solution including nickel, cobalt, manganese and optionally a transition metal, a chelating agent, and a basic aqueous solution in a reactor, and mixing with a lithium raw material and calcining to manufacture a center part including the compound of following Chemical Formula 1{'sub': 1', '1', '1', '1, '(wherein, 0.9≦x≦1.3, 0.1≦y≦0.3, 0.0≦z≦0.3, 0≦w≦0.1, and M is at least one metal selected from the group consisting of Mg, Zn, Ca, Sr, Cu, Zr, P, Fe, Al, Ga, In, Cr, Ge, and Sn);'} {'br': None, 'sub': x2', '1−y2−z2−w2', 'y2', 'z2', 'w2', '2, 'Li[NiCoMnM]O\u2003\u2003Chemical Formula 2'}, 'b) simultaneously mixing a second metallic salt aqueous solution including nickel, cobalt, manganese and optionally a transition metal, the chelating agent, and the basic aqueous solution in a reactor, mixing with the lithium raw material and calcining, and grinding thereof to the size of nanometers to manufacture a compound for forming an outer part including the compound of following Chemical Formula 2{'sub': 2', '2', '2', '2', '2, '(wherein, 0.9≦x≦1+z, 0≦y≦0.33, 0≦z≦0.5, 0≦w≦0.1 and M is at least one metal selected from the group consisting of Mg, Zn, Ca, Sr, Cu, Zr, P, Fe, Al, Ga, In, Cr, Ge, and Sn);'}c) mixing the center part manufactured from step a) and the compound for forming the outer part manufactured from step b) to form the outer part on the center part surface; andd) heat-treating the compound obtained from step c) at 500-800° C. to form a bi-layered structure in which lithium is present at a continuous concentration-gradient from the ...

POSITIVE ACTIVE MATERIAL PRECURSOR FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY USING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE PREPARED POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY

Provided are a positive active material precursor for a rechargeable lithium battery including a metal oxide represented by Chemical Formula 1, a positive active material for a rechargeable lithium battery that is obtained by using the positive active material precursor for a rechargeable lithium battery and includes a compound represented by a Chemical Formula 2, and a rechargeable lithium battery including the positive active material for a rechargeable lithium battery. 1. A rechargeable lithium battery comprising a metal oxide represented by the following Chemical Formula 1:{'br': None, 'sub': a', 'b', 'c', 'd', '3', '4, '[NiCoMMn]O\u2003\u2003[Chemical Formula 1]'}wherein, in the above Chemical Formula 1,M is a transition element,0.2≦a≦0.9, 0≦b≦0.5, 0≦c≦0.05, 0.1≦d≦0.9, and a+b+c+d=1.2. The positive active material precursor for a rechargeable lithium battery of claim 1 , wherein the M comprises Ti claim 1 , V claim 1 , Cr claim 1 , Fe claim 1 , Cu claim 1 , Zn claim 1 , Y claim 1 , Zr claim 1 , Nb claim 1 , Mo claim 1 , W claim 1 , or a combination thereof.3. The positive active material precursor for a rechargeable lithium battery of claim 1 , wherein the metal oxide represented by the above Chemical Formula 1 is a spherically-shaped powder.4. The positive active material precursor for a rechargeable lithium battery of claim 1 , wherein the metal oxide represented by the above Chemical Formula 1 has an average particle diameter of 5 μm to 15 μm.5. The positive active material precursor for a rechargeable lithium battery of claim 1 , wherein the metal oxide represented by the above Chemical Formula 1 has a tap density of 1.0 g/cc to 2.0 g/cc.6. A positive active material for a rechargeable lithium battery claim 1 , comprising a compound represented by the following Chemical Formula 2 and obtained by using the positive active material precursor for a rechargeable lithium battery according to :{'br': None, 'sub': 1+x', 'a', 'b', 'c', 'd', '1−x', '2−y', 'y, 'Li[ ...

SOLID OXIDE, SOLID OXIDE ELECTRODE, SOLID OXIDE FUEL CELL INCLUDING THE SAME, AND METHODS OF PREPARING THE SAME

An oxide represented by Formula 1: 2. The oxide of claim 1 , wherein the oxide has an electronic conductivity.3. The oxide of claim 1 , wherein the oxide has an ionic conductivity.4. The oxide of claim 1 , wherein the oxide has a crystal structure having a P 2m space group.5. The oxide of claim 1 , wherein the oxide has a crystal structure having a melilite structure.6. The oxide of claim 1 , wherein the oxide includes an interstitial oxygen.7. The oxide of claim 2 , wherein A in Formula 1 is at least one selected from Sr and Ba.8. The oxide of claim 1 , wherein M in Formula 1 is at least one selected from Mg and Ca.9. The oxide of claim 1 , wherein C in Formula 1 is at least one element selected from Group 7 to Group 8 of the Periodic Table of the Elements.10. The oxide of claim 1 , wherein C is at least one selected from Mn claim 1 , Fe claim 1 , Co claim 1 , and Cr.11. The oxide of claim 1 , wherein D is at least one selected from Si and Ge.13. The oxide of claim 1 , wherein the oxide is at least one selected from SrMgMnGeO claim 1 , SrMnGeO claim 1 , SrMgCoGeO claim 1 , SrCoGeO claim 1 , SrMgFeGeO claim 1 , and SrFeGeO.14. A solid oxide electrode comprising the oxide of .15. The solid oxide electrode of claim 14 , wherein the solid oxide electrode has an electrode resistance of about 0.32 ohms per square centimeter or less at 850° C.16. A solid oxide fuel cell comprising:{'claim-ref': {'@idref': 'CLM-00014', 'claim 14'}, 'a first electrode comprising the solid oxide electrode of ;'}a second electrode; anda solid oxide electrolyte disposed between the first electrode and the second electrode.17. The solid oxide fuel cell of claim 16 , wherein the first electrode is an air electrode.18. An oxide comprising:a first alkaline earth metal;a second alkaline earth metal which is different than the first alkaline earth metal;a transition metal;at least one selected from germanium and silicon; andoxygen,wherein a mole fraction of the first alkaline earth metal is about ...

LITHIUM SECONDARY BATTERY CONTAINING CATHODE MATERIALS HAVING HIGH ENERGY DENSITY AND ORGANIC/INORGANIC COMPOSITE POROUS MEMBRANE

Disclosed is a secondary battery including a cathode, an anode, a membrane and an electrolyte, wherein the cathode contains a mixture of a first cathode material defined herein and a second cathode material selected from the group consisting of a second-(a) cathode material defined herein and a second-(b) cathode material defined herein, and a combination thereof, wherein a mix ratio of the two cathode materials (first cathode material: second cathode material) is 50:50 to 90:10, and the membrane is an organic/inorganic composite porous membrane including (a) a polyolefin-based membrane substrate and (b) an active layer in which one or more areas selected from the group consisting of the surface of the substrate and a portion of pores of the substrate are coated with a mixture of inorganic particles and a binder polymer, wherein the active layer has a structure in which the inorganic particles are interconnected and fixed through a binder polymer and porous structures are formed by the interstitial volume between the inorganic particles. 1. A cathode composition , comprising:a mixture of {'br': None, 'sub': x', 'y', 'm', 'z', 't, 'Li(CoAD)O\u2003\u2003(1)'}, '(1) a first cathode material comprising a cathode material represented by Formula 1 belowwherein 0.8≦x≦1.2, 0≦z≦0.3, 1.8≦t≦4.2, (0.8-m-z)≦y≦(2.2-m-z), 0≦m≦0.3, A is at least one selected from Mg and Ca, and D is at least one selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta; Cr, Mo, W, Mn, Tc, Re, Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt, Cu, Au, Ag, Zn, Cd, Hg, B, Al, Ga, In, TI, C, Si, Ge, Sn, Pb, N, P, As, Sb and Bi; and(2) a second cathode material selected from the group consisting of a second-(a) cathode material and a second-(b) cathode material, and a combination thereof, {'br': None, 'sub': x', '1-a-b', 'a', 'b', 'y', '2, 'Li(NiMnCo)O\u2003\u2003(2a)'}, 'said second-(a) cathode material comprising a cathode material represented by Formula 2a belowwherein 0.05≦a≦0.4, 0.1≦b≦0.4, 0.4≦1-a-b≦0.7, 0.95≦x ...

CATHODE ACTIVE MATERIAL FOR SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME

Disclosed is lithium iron phosphate having an olivine crystal structure, wherein the length in the direction [001] is greater than the length in the direction [010] when the Li+ diffusion direction is the direction [010] in the lattice structure of the crystal. 1. Lithium iron phosphate having an olivine crystal structure , wherein the length in the direction [001] is greater than the length in the direction [010] when the Lidiffusion direction is the direction [010] in the lattice structure of the crystal.2. The lithium iron phosphate according to claim 1 , wherein the direction [001] is a direction in which particles are grown.3. The lithium iron phosphate according to claim 1 , wherein the length in the direction [001] is two or more times the length in the direction [010].4. The lithium iron phosphate according to claim 3 , wherein the length in the direction [001] is within 2 to 50 times the length in the direction [010].5. The lithium iron phosphate according to claim 1 , wherein the plane (001) of the crystal has a circular or oval shape.6. The lithium iron phosphate according to claim 1 , wherein the macro-morphology of the particle is a rod structure and is bent at a predetermined angle in the direction [001].7. The lithium iron phosphate according to claim 6 , wherein the particle is bent at an angle of 20 to 50 degrees.8. The lithium iron phosphate according to claim 1 , wherein the olivine-type lithium iron phosphate has a structure of the following formula 1:{'br': None, 'sub': 1+a', '1−b', 'b', '4−c', 'c, 'LiFeM(PO)X\u2003\u2003(1)'}whereinM represents at least one selected from Al, Mg and Ti,X represents at least one selected from F, S and N, and−0.5≦a≦+0.5, 0≦b≦0.5, 0≦c≦0.1.9. The lithium iron phosphate according to claim 1 , wherein the olivine-type lithium iron phosphate is prepared by rapid reaction for a short reaction time.10. The lithium iron phosphate according to claim 9 , wherein a reaction time of the rapid reaction is 0.5 seconds to 1 ...

Lithium Extraction Method, and Metal Recovery Method

To provided a method for recovering lithium from a lithium ion battery using comparatively simple equipment and without using a cumbersome process. A lithium extraction method for extracting lithium from the positive electrode material of a lithium ion battery containing lithium and cobalt, the method being characterized in that the positive electrode material is immersed into an acidic solution at 50° C. or less, lithium ions are selectively leached into the acidic solution while inhibiting the leaching of cobalt ions, and the leaching of lithium ions is stopped while the amount of lithium contained in the positive electrode material is sufficient.

Particles, process for production thereof and use thereof

Particles comprising a mixed oxide of the general formula (I) Li 1+a Ni b Co c Mn d O z   (I) in which the variables are each defined as follows: b is a number in the range from 0.25 to 0.45 c is a number in the range from 0.15 to 0.25 d =1− b−c, (1+a) is in the range from 1.05 to 1.20, 1.8+ a≦z ≦2.2+ a, the particles having been fully or partially coated with one or more fluorides; and also a process for producing inventive particles and use of inventive particles.

NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME

A negative electrode active material for lithium ion secondary batteries of the present invention includes a lithium-titanium composite oxide that has a composition represented by LiTiFeO(where x satisfies 0 Подробнее

Alumina Dry-Coated Cathode Material Precursors

A particulate precursor compound for manufacturing an aluminum doped lithium transition metal (M)-oxide powder usable as an active positive electrode material in lithium-ion batteries includes a transition metal (M)-hydroxide or (M)-oxy-hydroxide core and a non-amorphous aluminum oxide coating layer covering the core. By providing an aluminum thy-coating process where the particulate precursor core compound is mixed with alumina powder in one or more procedures, higher doping levels of aluminum compared to the known prior art may be achieved. The crystal structure of the alumina is maintained during the coating procedures and the core of each mixed transition metal precursor particle is surrounded by a coating layer containing crystalline alumina nano particles. The aluminum concentration in the particulate precursor decreases as the size of the core increases. 113-. (canceled)14. A particulate precursor compound for manufacturing an aluminum doped lithium transition metal (M)-oxide powder usable as an active positive electrode material in lithium-ion batteries , each particle of the precursor compound comprising:a transition metal (M)-hydroxide or (M)-oxyhydroxide core; and{'sub': 2', '3, 'a non-amorphous aluminum oxide AlOcoating layer covering the core.'}15. The particulate precursor compound of claim 14 , wherein the precursor compound has a general formula (M-hydroxide).(AlO)or (M-oxyhydroxide).(AlO) claim 14 , wherein a+(2*b)=1.16. The particulate precursor compound of claim 15 , wherein b<0.4.17. The particulate precursor compound of claim 14 , wherein the transition metal (M) is NiMnCo claim 14 , and wherein 0.3≦x≦0.9; 0≦y≦0.45 and 0 Подробнее

Lithium-transition metal oxide powder and method of producing the same, positive electrode active material for lithium ion battery, and lithium ion secondary battery

There is provided a lithium-transition metal oxide powder with a coating layer containing lithium niobate formed on a part or the whole part of a surface of a lithium-transition metal oxide particle and having a low powder compact resistance, and a positive electrode active material for a lithium ion battery containing the lithium-transition metal oxide powder. Specifically, there is provided the lithium-transition metal oxide powder composed of a lithium-transition metal oxide particle with a part or the whole part of a surface coated with a coating layer containing lithium niobate, wherein a carbon-content is 0.03 mass % or less.

PARTICLE SYNTHESIS APPARATUS AND METHODS

Apparatus and methods of forming a battery-active material are described. An apparatus includes a first processing section that raises the temperature of a precursor material to a reaction threshold temperature, a second processing section that converts the precursor material to a battery-active material, and a third processing section that cools the resulting battery-active material. Each of the processing sections may be a continuous flow tubular component. The first and third processing sections may be metal, and the second processing section may be a refractory material for high temperature service. The battery-active material is collected using a solids collector. 1. An apparatus for forming a battery active material , comprising:a precursor inlet;a linear heater coupled to the precursor inlet, the linear heater having a first plurality of independently controlled heating zones;a linear converter coupled to the linear heater, the linear converter having a second plurality of independently controlled heating zones; anda particle collector coupled to the linear converter.2. The apparatus of claim 1 , wherein the linear converter is surrounded by heating elements.3. The apparatus of claim 1 , wherein the precursor inlet is coupled to the linear heater by a droplet generator.4. The apparatus of claim 1 , wherein the linear heater and the linear converter are surrounded by heating elements.5. The apparatus of claim 1 , further comprising an annealer and a heat recycle line coupled to the linear heater.6. The apparatus of claim 2 , further comprising a controller coupled to the heating elements.7. The apparatus of claim 3 , wherein the droplet generator is a monodisperson or semi-monodispersion droplet generator.8. The apparatus of claim 4 , wherein each of the heating elements is a resistive heat jacket.9. The apparatus of claim 1 , wherein the linear converter is a ceramic cylindrical member wherein a ratio of a length of the cylindrical member to a diameter of the ...

POSITIVE ELECTRODE MATERIALS FOR HIGH DISCHARGE CAPACITY LITHIUM ION BATTERIES

Positive electrode active materials are described that have a high tap density and high specific discharge capacity upon cycling at room temperature and at a moderate discharge rate. Some materials of interest have the formula LiNiMnCoO, where x ranges from about 0.05 to about 0.25, α ranges from about 0.1 to about 0.4, β ranges from about 0.4 to about 0.65, and γ ranges from about 0.05 to about 0.3. The materials can be coated with a metal fluoride to improve the performance of the materials especially upon cycling. Also, the coated materials can exhibit a very significant decrease in the irreversible capacity lose upon the first charge and discharge of the battery. 1. A method for the synthesis of a layered lithium metal oxide composition , the method comprising ,precipitating a mixed metal carbonate composition from a solution comprising +2 metal cations wherein the carbonate composition has a selected composition;heating the carbonate composition to form a metal oxide composition;homogenizing the metal oxide composition to form a powder; andheating the metal oxide composition powder to form a crystalline layered lithium metal oxide composition.2. The method of wherein the solution comprises acetate anions claim 1 , sulfate anions claim 1 , nitrate anions or combinations thereof.3. The method of wherein the solution further comprises lithium cations.4. The method of wherein the precipitating step is carried out in an oxygen free atmosphere.5. The method of wherein the lithium metal oxide composition can be approximately represented by a formula LiNiMnCoMOF claim 1 , where x ranges from about 0.05 to about 0.25 claim 1 , α ranges from about 0.1 to about 0.4 claim 1 , β ranges from about 0.4 to about 0.65 claim 1 , γ ranges from about 0.05 to about 0.3 claim 1 , δ ranges from about 0 to about 0.1 and z ranges from about 0 to about 0.1 claim 1 , and where M is Mg claim 1 , Zn claim 1 , Al claim 1 , Ga claim 1 , B claim 1 , Zr claim 1 , Ti claim 1 , Ca claim 1 , Ce ...

Layer-layer lithium rich complex metal oxides with high specific capacity and excellent cycling

Lithium rich and manganese rich lithium metal oxides are described that provide for excellent performance in lithium-based batteries. The specific compositions can be engineered within a specified range of compositions to provide desired performance characteristics. Selected compositions can provide high values of specific capacity with a reasonably high average voltage. Compositions of particular interest can be represented by the formula, x Li 2 MnO 3 .(1−x) Li Ni u+Δ Mn u−Δ Co w A y O 2 . The compositions undergo significant first cycle irreversible changes, but the compositions cycle stably after the first cycle.

POSITIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY AND SECONDARY BATTERY USING THE SAME

A positive electrode active material for a lithium ion secondary battery having high discharge energy and capable of suppressing capacity drop with cycles and a secondary battery using the same are provided at lower cost. A positive electrode active material for a secondary battery according to a first aspect of the exemplary embodiment is represented by the following formula (I): Li(FeNiMn)O(I) where 0.2 Подробнее

Positive Electrode Active Material For Lithium-Ion Battery, Positive Electrode For A Lithium-Ion Battery, Lithium-Ion Battery Using Same, And Precursor To A Positive Electrode Active Material For A Lithium-Ion Battery

The present invention provides a positive electrode active material for lithium ion batteries, which realizes a lithium ion battery that is, while satisfying fundamental characteristics of a battery (capacity, efficiency, load characteristics), low in the resistance and excellent in the lifetime characteristics. In the positive electrode active material for lithium ion batteries, the variation in the composition of transition metal that is a main component inside of particles of or between particles of the positive electrode active material, which is defined as a ratio of the absolute value of the difference between a composition ratio inside of the particles of or in a small area between the particles of the transition metal and a composition ratio in a bulk state to the composition ratio in a bulk state of the transition metal, is 5% or less.

Lithium secondary battery positive electrode material for improving output characteristics and lithium secondary battery including the same

Provided are a positive electrode active material for improving an output and a lithium secondary battery including the same. Particularly, graphite and conductive carbon which have shapes and sizes different from each other, may be simultaneously coated on a mixed positive electrode material of a 3-component system lithium-containing metal oxide having a layered structure and expressed as following Chemical Formula 1 and LiFePO 4 having an olivine structure as an conductive material to improve high resistance occurrence and conductivity reduction phenomenon of a 3-component system lithium metal oxide due to a difference between particle sizes and surface areas of the 3-component system lithium-containing metal oxide and LiFePO 4 olivine. Li 1+a Ni x Co y Mn 1-x-y O 2 , 0≦a<0.5, 0<x<1, 0<y<0.5   [Chemical formula 1]

COMPOSITE CATHODE ACTIVE MATERIAL HAVING IMPROVED POWER CHARACTERISTICS, AND SECONDARY BATTERY, BATTERY MODULE, AND BATTERY PACK INCLUDING THE SAME

Provided is a composite cathode active material including layered lithium manganese oxide and lithium-containing metal oxide. 1. A composite cathode active material comprising:a layered lithium manganese oxide represented by Chemical Formula 1 shown below; and {'br': None, 'i': a', '−a, 'sub': 2', '3', '2, 'sup': '1', '[LiMnO].(1)[LiMO]\u2003\u2003Chemical Formula 1'}, 'a lithium-containing metal oxide represented by Chemical Formula 3 shown below,'}{'sup': '1', 'claim-text': {'br': None, 'sub': x', 'y', 'z', '2, 'Li(NiCoAl)O\u2003\u2003Chemical Formula 3'}, 'wherein, 0 Подробнее

Non-aqueous secondary battery

A non-aqueous secondary battery of the present invention includes a positive electrode, a negative electrode, a separator and a non-aqueous electrolyte. The positive electrode includes a lithium-containing composite oxide as a positive electrode active material, expressed by a general compositional formula (1): Li 1+y MO 2 where −0.5≦y≦0.5. M denotes an element group including Ni and at least one element selected from the group consisting of Co, Mn, Fe and Ti. And the non-aqueous electrolyte includes a cycloalkane derivative A having at least one alkyl ether group containing an unsaturated bond, and at least one compound selected from the group consisting of an azacrown ether compound B having a functional group where at least one of nitrogen atoms contains an unsaturated bond and a nitrogen-containing heterocyclic compound C.

Active material for nonaqueous electrolyte secondary battery, method for production of the active material, electrode for nonaqueous electrolyte secondary battery and nonaqueous electrolyte secondary battery

There is provided an active material for a nonaqueous electrolyte secondary battery, including a lithium-transition metal composite oxide which has an α-NaFeO 2 -type crystal structure and of which the average composition is represented by the composition formula of Li 1+α Me 1−α O 2 (Me is a transition metal containing Co, Ni and Mn; and α> 0 ), wherein the lithium-transition metal composite oxide is a particle having a core and a coated part, the cobalt concentration of the coated part is higher than the cobalt concentration of the core, the manganese concentration of the coated part is lower than the manganese concentration of the core, and the ratio of cobalt present in the coated part is 3 to 10% in terms of a molar ratio based on the amount of the transition metal present in the core.

CATHODE ACTIVE MATERIAL, METHOD OF MANUFACTURING IT, CATHODE, AND BATTERY

A cathode active material capable of increasing a capacity and improving high temperature characteristics or cycle characteristics, a method of manufacturing it, a cathode using the cathode active material, and a battery using the cathode active material are provided. In a cathode active material contained in a cathode, a coating layer is provided on at least part of complex oxide particle containing at least lithium (Li) and cobalt (Co). The coating layer is an oxide which contains lithium (Li) and at least one of nickel (Ni) and manganese (Mn). 132-. (canceled)33. A cathode active material comprising:complex oxide particle made of an oxide containing at least lithium (Li) and cobalt (Co);{'sub': (1+x)', '(1−y)', 'y', '(2−z), 'a coating layer which is provided on at least part of the complex oxide particle and is made of an oxide containing lithium and at least one of nickel and manganese wherein the average composition of the complex oxide particle being expressed by Chemical formula 3, and wherein in diffraction peaks obtained by CuKα powder X-ray diffraction, there is a diffraction peak of the coating layer on the lower angle side in the range from 0.2° to 1.0° than diffraction angle 2θ of a diffraction peak belonging to face [101] of the complex oxide particle LiCoMO;'}where M represents at least one selected from the group consisting of magnesium (Mg), aluminum (Al), boron (B), titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), iron (Fe), nickel (Ni), copper (Cu), zinc (Zn), molybdenum (Mo), tin (Sn), tungsten (W), zirconium (Zr), yttrium (Y), niobium (Nb), calcium (Ca), and strontium (Sr); andvalues of x, y, and z are respectively in the range of −0.10≦x≦0.10, 0≦y<0.50, and −0.10≦z≦0.20.341. The cathode active material according to claim , wherein the composition ratio between nickel and manganese in the coating layer at a mol ratio of nickel:manganese is in the range from 90:10 to 30:70.351. The cathode active material according to claim , wherein ...

NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

A non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode, a non-aqueous electrolyte, and a separator, wherein the positive electrode includes a positive electrode current collector and a positive electrode material mixture layer formed on one or both sides of the positive electrode current collector, the positive electrode material mixture layer has a thickness greater than 80 μm per side of the positive electrode current collector, the positive electrode material mixture layer includes a positive electrode active material, the positive electrode active material is composed of secondary particles formed by aggregation of primary particles, the secondary particles have an average particle size of 6 μm or less, and, when diffraction-line integrated intensities of the (003) plane and the (104) plane in an X-ray diffraction chart of the positive electrode material mixture layer are I003 and I104, respectively, the ratio I003/I104 of the integrated intensities is 1.1 or more. 1. A non-aqueous electrolyte secondary battery comprising a positive electrode , a negative electrode , a non-aqueous electrolyte , and a separator ,wherein the positive electrode comprises a positive electrode current collector and a positive electrode material mixture layer formed on one or both sides of the positive electrode current collector,the positive electrode material mixture layer has a thickness greater than 80 μm per side of the positive electrode current collector,the positive electrode material mixture layer includes a positive electrode active material,the positive electrode active material is composed of secondary particles formed by aggregation of primary particles,the secondary particles have an average particle size of 6 μm or less, and,{'sub': 003', '104', '003', '104, 'when diffraction-line integrated intensities of the (003) plane and the (104) plane in an X-ray diffraction chart of the positive electrode material mixture layer are Iand ...

POSITIVE ACTIVE MATERIAL FOR SECONDARY BATTERY OF IMPROVED RATE CAPABILITY

Disclosed is a novel cathode active material for secondary batteries. More specifically, disclosed is a cathode active material for secondary batteries that reduces deintercalation of oxygen from a crystal structure of Li2MnO3 at a high voltage of 4.3V to 4.6V through incorporation of excess lithium in a transition metal cation layer. 1. A cathode active material for secondary batteries for reducing deintercalation of oxygen from a crystal structure at a high voltage of 4.3V to 4.6V through incorporation of excessive lithium in a cation layer composed of a transition metal , the cathode active material being represented by Formula 1:{'br': None, 'i': x', '* x, 'sub': a', 'b', '1−a−b', '2', '2', '3, '(1−)Li(LiM′M)OLiM″O\u2003\u2003(1)'}wherein0 Подробнее

Positive Electrode Active Material for Lithium Secondary Battery and Method for Preparing the Same

Provided is a method for preparing a positive electrode active material for a lithium secondary battery, the method comprising: mixing and reacting a nickel source, a cobalt source, and an aluminum source, ammonia water, sucrose, and a pH adjusting agent to prepare a mixed solution; drying and oxidizing the mixed solution to prepare a positive electrode active material precursor; and adding a lithium source to the positive electrode active material precursor and firing them to prepare a positive electrode active material for a lithium secondary battery. 1. A method for preparing a porous positive electrode active material for a lithium secondary battery , the method comprising:mixing and reacting raw materials including a metal aqueous solution containing a nickel source, a cobalt source, and an aluminum source, ammonia water, sucrose, and a pH adjusting agent to prepare a positive electrode active material precursor; and {'br': None, 'sub': 1+z', '1−x−y', 'x', 'y', '2, 'LiNiCoAlO\u2003\u2003[Chemical Formula 1]'}, 'mixing a lithium source with the positive electrode active material precursor and firing them to prepare a positive electrode active material for a lithium secondary battery represented by the following Chemical Formula 1.'}(z, x, y, and 1-x-y are real numbers that satisfy the following Equations, respectively: 0≦z≦0.3, 0.05≦x≦0.3, 0 Подробнее

ACTIVE MATERIAL AND LITHIUM ION SECONDARY BATTERY

An active material has a layered structure and a composition represented by the following formula (1) LiNiCoMnMO. . . (1), wherein M is at least one selected from Al, Si, Zr, Ti, Fe, Mg, Nb, Ba and V, and a, b, c, d, x and y satisfy 1.9≦(a+b+c+d+y)≦2.1, 1.0 Подробнее

Microwave Rapid Thermal Processing of Electrochemical Devices

Microwave radiation may be applied to electrochemical devices for rapid thermal processing (RTP) (including annealing, crystallizing, densifying, forming, etc.) of individual layers of the electrochemical devices, as well as device stacks, including bulk and thin film batteries and thin film electrochromic devices. A method of manufacturing an electrochemical device may comprise: depositing a layer of the electrochemical device over a substrate; and microwave annealing the layer, wherein the microwave annealing includes selecting annealing conditions with preferential microwave energy absorption in the layer. An apparatus for forming an electrochemical device may comprise: a first system to deposit an electrochemical device layer over a substrate; and a second system to microwave anneal the layer, wherein the second system is configured to provide preferential microwave energy absorption in the device layer.

METHOD OF PREPARING POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY PREPARED BY USING THE METHOD, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME

Provided are a method of preparing a positive active material for a rechargeable lithium battery that includes: forming a positive active material for a rechargeable lithium battery precursor by mixing at least one of a nickel source, a cobalt source, and a manganese source with a carbon source and a solvent; and mixing the active material precursor for a rechargeable lithium battery and a lithium source followed by heat treatment, a positive active material for a rechargeable lithium battery prepared in the method, and a rechargeable lithium battery including the same. 1. A method of preparing a positive active material for a rechargeable lithium battery , comprising:forming a positive active material precursor for a rechargeable lithium battery by mixing at least one of a nickel source, a cobalt source, and a manganese source with a carbon source and a solvent; andmixing the positive active material precursor for a rechargeable lithium battery and a lithium source followed by heat treatment.2. The method of claim 1 , wherein the nickel source comprises nickel sulfate claim 1 , nickel nitrate claim 1 , nickel acetate claim 1 , nickel chloride claim 1 , nickel phosphate claim 1 , or a combination thereof.3. The method of claim 1 , wherein the cobalt source comprises cobalt sulfate claim 1 , cobalt nitrate claim 1 , cobalt acetate claim 1 , cobalt chloride claim 1 , cobalt phosphate claim 1 , or a combination thereof.4. The method of claim 1 , wherein the manganese source comprises manganese sulfate claim 1 , manganese nitrate claim 1 , manganese acetate claim 1 , manganese chloride claim 1 , manganese phosphate claim 1 , or a combination thereof.5. The method of claim 1 , wherein the carbon source comprises sucrose claim 1 , glucose claim 1 , polyvinyl alcohol (PVA) claim 1 , polyvinyl pyrrolidone (PVP) claim 1 , colloidal carbon claim 1 , citric acid claim 1 , tartaric acid claim 1 , glycolic acid claim 1 , polyacrylic acid claim 1 , adipic acid claim 1 , glycine ...

POSITIVE ELECTRODE COMPOSITION FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

A positive electrode composition for nonaqueous electrolyte secondary battery comprises a lithium transition metal complex oxide represented by a general formula LiNiCoMWMO, where 1.0≦a≦1.5, 0≦x≦0.5, 0≦y≦0.5, 0.002≦z≦0.03, 0≦w≦0.02, 0≦x+y≦0.7, Mrepresents at least one selected from the group consisting of Mn and Al, and Mrepresents at least one selected from the group consisting of Zr, Ti, Mg, Ta, Nb and Mo; and a boron compound comprising at least boron element and oxygen element. 1. A positive electrode composition for a nonaqueous electrolyte secondary battery , the positive electrode composition comprising:{'sub': a', '1-x-y', 'x', 'y', 'z', 'w', '2, 'sup': 1', '2', '1', '2, 'a lithium transition metal complex oxide represented by a general formula LiNiCoMWMO(wherein 1.0≦a≦1.5, 0≦x≦0.5, 0≦y≦0.5, 0.002≦z≦0.03, 0≦w≦0.02, 0≦x+y≦0.7, Mrepresents at least one selected from the group consisting of Mn and Al, and Mrepresents at least one selected from the group consisting of Zr, Ti, Mg, Ta, Nb and Mo); and'}a boron compound comprising at least a boron element and an oxygen element.2. The positive electrode composition according to claim 1 , wherein a ratio of the boron element to the lithium transition metal complex oxide is 2.0 mold or less.3. A positive electrode composition for a nonaqueous electrolyte secondary battery claim 1 , the positive electrode composition comprising:{'sub': a', '1-x-y', 'x', 'y', 'z', 'w', '2, 'sup': 1', '2', '1', '2, 'a lithium transition metal complex oxide represented by a general formula LiNiCoMWMO(wherein 1.0≦a≦1.5, 0≦x≦0.5, 0≦y≦0.5, 0.002≦z≦0.03, 0≦w≦0.02, 0≦x+y≦0.7, Mrepresents at least one selected from the group consisting of Mn and Al, and Mrepresents at least one selected from the group consisting of Zr, Ti, Mg, Ta, Nb and Mo); and'}a boron compound comprising at least boron element and oxygen element,wherein a ratio of the boron element to the lithium transition metal complex oxide is 2.0 mol % or less.4. The positive electrode ...

POSITIVE ACTIVE MATERIAL FOR ALKALINE SECONDARY BATTERY, METHOD FOR MANUFACTURING THE SAME AND ALKALINE SECONDARY BATTERY

A positive active material for an alkaline secondary battery having a core layer containing nickel hydroxide and a conductive auxiliary layer which coats the surface of the core layer, wherein the conductive auxiliary layer contains a cobalt oxyhydroxide phase and a cerium dioxide phase, and the active material contains lithium. 1. A positive active material for an alkaline secondary battery comprising a core layer containing nickel hydroxide and a conductive auxiliary layer which coats a surface of the core layer , whereinthe conductive auxiliary layer contains a cobalt oxyhydroxide phase and a cerium dioxide phase, andthe active material contains lithium.2. The positive active material for an alkaline secondary battery according to claim 1 , whereinthe active material is subjected to a lithium impregnation treatment.3. The positive active material for an alkaline secondary battery according to claim 1 , wherein the core layer and the conductive auxiliary layer contain lithium.4. The positive active material for an alkaline secondary battery according to claim 1 , wherein an amount of lithium contained in the active material corresponds to 0.03% by mass or more and 0.36% by mass or less of lithium as element.5. The positive active material for an alkaline secondary battery according to claim 1 , wherein the existence ratio of the cerium dioxide phase to a total of the cobalt oxyhydroxide phase and the cerium dioxide phase in the conductive auxiliary layer is 6.5% by mass or more and 88.2% by mass or less.6. A method for manufacturing the positive active material for an alkaline secondary battery according to claim 5 , comprising:the step of adding an aqueous solution containing cobalt ions and cerium ions to an aqueous solution obtained by dispersing particles containing nickel hydroxide therein to form a coating layer of a hydroxide containing cobalt and cerium on the surface of the core layer containing nickel hydroxide, whereinin the aqueous solution containing ...

ELECTRODE ACTIVE MATERIAL CONTAINING POLYDOPAMINE AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME

Disclosed are an electrode active material including lithium metal oxide particles and a polydopamine layer formed on a surface of each of the lithium metal oxide particles, and a lithium secondary battery including the same. 1. An electrode active material comprising: particles of a lithium metal oxide; and a polydopamine layer formed on a surface of each of the particles.2. The electrode active material according to claim 1 , wherein the polydopamine layer contains moisture.3. The electrode active material according to claim 2 , wherein a weight of the electrode active material continuously decreases as temperature increases claim 2 , in thermogravimetric analysis (TGA).4. The electrode active material according to claim 1 , wherein an amount of polydopamine is in a range of 0.5 wt % to 5 wt % based on a total weight of the electrode active material.5. The electrode active material according to claim 1 , wherein the lithium metal oxide is represented by Formula (1) below:{'br': None, 'sub': a', 'b', '4-c', 'c, 'LiM′OA\u2003\u2003(1)'}wherein M′ is at least one element selected from the group consisting of Ti, Sn, Cu, Pb, Sb, Zn, Fe, In, Al, and Zr;0.1≦a≦4 and 0.2≦b≦4, wherein a and b are determined according to oxidation number of M′;0≦c<0.2, wherein c is determined according to oxidation number of A; andA is at least one monovalent or divalent anion.6. The electrode active material according to claim 5 , wherein the lithium metal oxide of Formula (1) is represented by Formula (2) below:{'br': None, 'sub': a', 'b', '4, 'LiTiO\u2003\u2003(2)'}wherein 0.5≦a≦3 and 1≦b≦2.5.7. The electrode active material according to claim 6 , wherein the lithium metal oxide is LiTiOor LiTiO.8. The electrode active material according to claim 1 , wherein the lithium metal oxide is a spinel-structure oxide represented by Formula (3) below:{'br': None, 'sub': x', 'y', '2-y', '4-z', 'z, 'LiMMnOA\u2003\u2003(3)'}wherein 0.9≦x≦1.2, 0 Подробнее