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Title:
NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTIC SOLUTION
Document Type and Number:
WIPO Patent Application WO/2020/090922
Kind Code:
A1
Abstract:
Provided is a non-aqueous electrolyte secondary battery comprising: a positive electrode; a negative electrode; a separator disposed between the positive electrode and the negative electrode; and a non-aqueous electrolytic solution containing a lithium salt and a carboxylic acid, wherein the lithium salt includes lithium difluorophosphate, and the content of the carboxylic acid in the non-aqueous electrolytic solution is 5-900 ppm with respect to the mass of the non-aqueous electrolytic solution.

Inventors:
NOZAKI YASUKO
ISHIGURO TASUKU
OKAZAKI TOMOHISA
Application Number:
PCT/JP2019/042649
Publication Date:
May 07, 2020
Filing Date:
October 30, 2019
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Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01M10/052; H01M10/0567; H01M10/0568
Domestic Patent References:
WO2015046175A12015-04-02
WO2016017809A12016-02-04
Foreign References:
JP2015072858A2015-04-16
Attorney, Agent or Firm:
KAWASAKI, HASHIMOTO AND PARTNERS (JP)
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