Title:
COMPOSITION FOR SECONDARY BATTERY ELECTRODE
Document Type and Number:
WIPO Patent Application WO/2020/066917
Kind Code:
A1
Abstract:
The present invention provides: a secondary battery electrode composition in which an active material has excellent dispersibility and adhesion properties, and with which it is possible to prevent moisture-induced deterioration and malfunction of a battery and to manufacture a high-capacity secondary battery; and a secondary battery using said secondary battery electrode composition. The secondary battery electrode composition according to the present invention comprises an active material, a binder, and an aqueous solvent. The binder comprises a polyvinyl acetal resin. The polyvinyl acetal resin contains a constituent unit having an alkylene oxide group in an amount of 0.01-14 mol%, has a hydroxyl group content of 68-97 mol%, and has a degree of polymerization of 220-5500.
Inventors:
ASABA YUTARO (JP)
Application Number:
PCT/JP2019/037038
Publication Date:
April 02, 2020
Filing Date:
September 20, 2019
Export Citation:
Assignee:
SEKISUI CHEMICAL CO LTD (JP)
International Classes:
H01M4/04; C08L27/16; C08L29/14; H01M4/139; H01M4/62; H01M4/86
Domestic Patent References:
| WO2000056815A1 | 2000-09-28 | |||
| WO2000056780A1 | 2000-09-28 |
Foreign References:
| JP2015088487A | 2015-05-07 | |||
| JP2013178962A | 2013-09-09 | |||
| JP2012195289A | 2012-10-11 | |||
| JP2015072901A | 2015-04-16 | |||
| JP2016190943A | 2016-11-10 |
Attorney, Agent or Firm:
YASUTOMI & ASSOCIATES (JP)
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