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Title:
NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
Document Type and Number:
Japanese Patent JP2014179206
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To improve preserving characteristics under, for instance, a high-temperature environment by efficiently capturing HF generated from a fluorine system solvent being oxidatively decomposed at a positive electrode surface.SOLUTION: A nonaqueous electrolyte secondary battery 10 includes: a positive electrode 20 in which a positive electrode active material layer 22 is formed on a positive electrode collector 21; a negative electrode 30; a separator 40; and a nonaqueous electrolyte containing fluorine based solvent. A silica is contained between the positive electrode active material layer 22 and the separator 40 or in the positive electrode active material layer 22.

Inventors:
KAMIYAMA YUMA
OGAWA HIROKO
YAGI HIROMASA
TAKEUCHI TAKASHI
Application Number:
JP2013051731A
Publication Date:
September 25, 2014
Filing Date:
March 14, 2013
Export Citation:
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Assignee:
SANYO ELECTRIC CO
International Classes:
H01M10/05; H01M2/16; H01M4/13; H01M4/62; H01M10/0569
Attorney, Agent or Firm:
Patent business corporation YKI international patent firm