Positive electrode active substance for lithium ion batteries, positive electrode for lithium ion batteries, and lithium ion battery

19-01-2016 дата публикации
Номер:
US9240594B2
Автор: OKAMOTO KENTARO, KAJIYA YOSHIO
Принадлежит: OKAMOTO KENTARO, KAJIYA YOSHIO, JX NIPPON MINING & METALS CORP, JX NIPPON MINING & METALS CORPORATION
Контакты:
Номер заявки: 58-13-20112096
Дата заявки: 02-03-2011



The present invention provides a positive electrode active material for lithium ion battery which has a high capacity and good rate characteristics can be provided. The positive electrode active material for lithium ion battery has a layer structure represented by the compositional formula: Lix(NiyMe1-y)Oz (wherein Me represents at least one type selected from the group consisting of Mn, Co, Al, Mg, Cr, Ti, Fe, Nb, Cu and Zr, x denotes a number from 0.9 to 1.2, y denotes a number from 0.70 to 0.79, and z denotes a number of 1.9 or more), wherein the coordinates of the lattice constant a and compositional ratio (Li/M) are within the region enclosed by three lines given by the equations: y=1.108, y=37.298x+108.27, and y=75.833x217.1 on a graph in which the x-axis represents a lattice constant a and the y-axis represents a compositional ratio (Li/M) of Li to M, and the lattice constant c is 14.2 to 14.25.





CPC - классификация

CC0C01C01GC01G5C01G53C01G53/C01G53/0C01G53/00C01G53/5C01G53/50C01G53/6C01G53/66C01PC01P2C01P20C01P200C01P2002C01P2002/C01P2002/7C01P2002/77C01P2004C01P2004/C01P2004/6C01P2004/61HH0H01H01MH01M1H01M10H01M10/H01M10/0H01M10/05H01M10/052H01M10/0525H01M4H01M4/H01M4/1H01M4/13H01M4/131H01M4/5H01M4/50H01M4/505H01M4/52H01M4/525YY0Y02Y02EY02E6Y02E60Y02E60/Y02E60/1Y02E60/10Y02E60/12Y02E60/122

IPC - классификация

CC0C01C01GC01G5C01G53C01G53/C01G53/0C01G53/00HH0H01H01MH01M1H01M10H01M10/H01M10/0H01M10/05H01M10/052H01M4H01M4/H01M4/1H01M4/13H01M4/131H01M4/5H01M4/50H01M4/505H01M4/52H01M4/525

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