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H01M 4/02 (2006.01); H01M 4/64 (2006.01); H01M 10/04 (2006.01); H01M 4/13 (2010.01); H01M 4/74 (2006.01); H01M 10/0525 (2010.01); H01M 10/0585 (2010.01); H01M 4/131 (2010.01); H01M 4/485 (2010.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/583 (2010.01); H01M 4/66 (2006.01);

U.S. Cl.

CPC ...

H01M 10/0413 (2013.01); H01M 4/02 (2013.01); H01M 4/13 (2013.01); H01M 4/662 (2013.01); H01M 4/74 (2013.01); H01M 10/0525 (2013.01); H01M 10/0585 (2013.01); H01M 4/131 (2013.01); H01M 4/485 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/583 (2013.01); H01M 4/661 (2013.01); H01M 2004/021 (2013.01); Y02E 60/122 (2013.01);

Abstract

An electrode assembly and a rechargeable battery using the same include a positive electrode including a positive current collector and a positive active material on the positive current collector; a negative electrode including a negative current collector and a negative active material on the negative current collector; an outer electrode including an outer current collector and an outer active material on the outer current collector, wherein the outer current collector includes an outer surface facing away from an outer separator and an inner surface facing toward the outer separator, and the outer active material is on both the outer surface and the inner surface, and wherein a thickness of the outer active material is less than at least one of a thickness of the positive active material or a thickness of the negative active material.

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