Patent ID: 7682748
Filing Date: 2010-03-23
Classification: H01M,Y02E,Y02P

Abstract:
1. A nonaqueous electrolyte secondary battery comprising; a positive electrode containing a positive electrode active material; a negative electrode containing a negative electrode active material; and a nonaqueous electrolyte, wherein: (1) lithium cobaltate is used as the positive electrode active material and a mixture containing molybdenum dioxide and lithium titanate in a weight ratio (molybdenum dioxide:lithium titanate) of 90:10 to 50:50 is used as the negative electrode active material; (2) when weight of lithium cobaltate used as the positive electrode active material is denoted by W (3) the nonaqueous electrolyte comprises a solvent and 5-30% by volume of ethylene carbonate is contained in the solvent.