Patent ID: 8367252
Filing Date: 2013-02-05
Classification: H01M,Y02E

Abstract:
1. A non-aqueous electrolyte secondary battery comprising a positive electrode, a negative electrode, and a non-aqueous electrolyte, wherein said non-aqueous electrolyte comprises a non-aqueous solvent, a solute dissolved in said non-aqueous solvent, and hydrogenated terphenyl, said solute comprises a boron-containing alkali salt and a boron-free alkali salt, said non-aqueous electrolyte contains 0.1% by mass to 1% by mass of diphenyl ether, said non-aqueous electrolyte contains 0.5% by mass to 3.5% by mass of the hydrogenated terphenyl and 0.1% by mass to 0.5% by mass of the boron-containing alkali salt, said negative electrode includes a negative electrode active material comprising a randomly oriented carbon composite A, and said carbon composite A contains a graphitic carbon substance B and a carbon substance C that is different from said graphitic carbon substance B, said graphitic carbon substance B being a product obtained by applying a heat treatment to a spherical natural graphite at a temperature of 650 to 3000° C.