NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR PRODUCING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Title:

NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR PRODUCING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Document Type and Number:

WIPO Patent Application WO/2021/241214

Kind Code:

A1

Abstract:

The purpose of the present disclosure is to provide a nonaqueous electrolyte secondary battery that has excellent cycle characteristics. A nonaqueous electrolyte secondary battery according to one embodiment of the present disclosure is provided with: an electrode body that comprises a positive electrode, a negative electrode and a separator; and a nonaqueous electrolyte. A mixture layer of the negative electrode contains a negative electrode active material, at least either one of carboxymethyl cellulose or a salt thereof, and at least either one of sorbic acid or a salt thereof; and the content of the sorbic acid and/or a salt thereof is 1,500 ppm or less relative to the mass of the mixture layer.

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Inventors:

IWAMI YASUNOBU

Application Number:

PCT/JP2021/017971

Publication Date:

December 02, 2021

Filing Date:

May 12, 2021

Export Citation:

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Assignee:

SANYO ELECTRIC CO (JP)

International Classes:

H01M4/13; H01M4/139; H01M4/62

Foreign References:

JP2014135154A	2014-07-24
JP2020035682A	2020-03-05
JP2010080297A	2010-04-08
CN108258249A	2018-07-06