NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Title:

NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Document Type and Number:

Japanese Patent JP2013243091

Kind Code:

A

Abstract:

To provide a nonaqueous electrolyte secondary battery capable of realizing both of durability and an output characteristic at a high level.

In a nonaqueous electrolyte secondary battery, an electrode body formed by opposing a positive electrode having a positive electrode active material to a negative electrode having a negative active material, a nonaqueous electrolyte, and an oxalate complex compound having a boron (B) atom are housed in a battery case. A coating containing the boron (B) atom derived from the oxalate complex compound is formed on a surface of the negative electrode active material. A relationship between an amount B_M (μg/cm²) of the boron (B) atom measured according to an inductively coupled plasma emission spectral analysis (ICP-AES) and strength B_A of the boron (B) atom of three-coordination measured according to an X-ray absorption fine structure analysis (XAFS) satisfies 0.5≤B_A/B_M≤1.0.

Inventors:

NAKANO TOSHIHIRO
GOTO SATORU
SUMI TOMOHIDE
SANO HIDEKI

Application Number:

JP2012116775A

Publication Date:

December 05, 2013

Filing Date:

May 22, 2012

Export Citation:

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Assignee:

TOYOTA MOTOR CORP

International Classes:

H01M10/0567; H01M10/058

Domestic Patent References:

JP2007250288A	2007-09-27
JP2013097973A	2013-05-20

Attorney, Agent or Firm:

Makoto Abe
Michiko Oi
Hiroaki Yamane

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