Title:
SECONDARY BATTERY ELECTRODE COMPOUND LAYER COMPOSITION, SECONDARY BATTERY ELECTRODE, AND SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2021/100582
Kind Code:
A1
Abstract:
The present invention provides a secondary battery electrode compound layer composition that is capable of yielding a secondary battery that exhibits superior cycle properties while ensuring ease of application through reduced electrode slurry viscosity at a higher solids concentration on the part of the electrode compound layer composition than in the prior art. The present invention also provides a secondary battery electrode and a secondary battery obtained by using the composition. The present invention pertains to a secondary battery electrode compound layer composition containing a binder, an active material, and water, the solids concentration of the composition being 40% by mass or higher, wherein: the binder contains a cross-linked polymer comprising a carboxyl group, and a non-cross-linked polymer comprising a structural unit derived from an ethylenically unsaturated carboxylic acid monomer; and the amount used of the non-cross-linked polymer is 7.5 parts by mass to 200 parts by mass, inclusive, per 100 total parts by mass of the cross-linked polymer.
Inventors:
HIGASAYAMA AYANO (JP)
NAKANO TOMOKO (JP)
SAITO NAOHIKO (JP)
NAKANO TOMOKO (JP)
SAITO NAOHIKO (JP)
Application Number:
PCT/JP2020/042171
Publication Date:
May 27, 2021
Filing Date:
November 12, 2020
Export Citation:
Assignee:
TOAGOSEI CO LTD (JP)
International Classes:
C08L1/28; C08L9/06; C08L101/08; H01M4/13; H01M4/139; H01M4/24; H01M4/62
Domestic Patent References:
| WO2019044452A1 | 2019-03-07 | |||
| WO2018180232A1 | 2018-10-04 | |||
| WO2017073589A1 | 2017-05-04 |
Foreign References:
| JP2019157000A | 2019-09-19 |
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