ELECTRODE MIXTURE, SECONDARY BATTERY, AND COMPOSITION

Title:

ELECTRODE MIXTURE, SECONDARY BATTERY, AND COMPOSITION

Document Type and Number:

WIPO Patent Application WO/2022/050148

Kind Code:

A1

Abstract:

Provided is an electrode mixture which contains an electrode active substance, an organic solvent, a binder and an additive. The binder contains a fluorine-containing copolymer that contains vinylidene fluoride units and fluorinated monomer units (excluding vinylidene fluoride units). The additive is a polymer material having a repeating unit represented by -[CH2-CHR]- (in this repeating unit, R is a chain-like or cyclic amido group, a nitrile group or an alkyl group having 1-4 carbon atoms, with at least one hydrogen atom in said alkyl group being substituted with a chain-like or cyclic amido group or a nitrile group). The content of the binder is 0.1-1.6 parts by mass relative to 100 parts by mass of the electrode active substance. The content of the additive is 0.001-0.2 parts by mass relative to 100 parts by mass of the electrode active substance.

Inventors:

ARAI KANAKO (JP)
YANO RYOUICHI (JP)
YOTSUMOTO YUKI (CN)
LIU PEI QI (CN)
ZHANG EN HAO (CN)

Application Number:

PCT/JP2021/031178

Publication Date:

March 10, 2022

Filing Date:

August 25, 2021

Export Citation:

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Assignee:

DAIKIN IND LTD (JP)
DAIKIN FLUOROCHEMICALS CHINA CO LTD (CN)

International Classes:

H01M4/62

Domestic Patent References:

WO2019167322A1

2019-09-06

Foreign References:

JP2010123331A	2010-06-03
JP2001023618A	2001-01-26
JPH10154415A	1998-06-09
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JP2014120204A	2014-06-30
JP2011134596A	2011-07-07
JP2010129296A	2010-06-10
JP2004214042A	2004-07-29
JP2004281096A	2004-10-07