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US 10,873,086 B2Granted
Binder for nonaqueous electrolyte secondary battery electrodes, electrode mixture for nonaqueous electrolyte secondary batteries, electrode for nonaqueous electrolyte secondary batteries, nonaqueous electrolyte secondary battery and electrical device
AssigneeSumitomo Seika Chemicals Co., Ltd.
InventorsErina Takahashi, Shun Hashimoto, Junichi Fujishige
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Abstract
This binder for nonaqueous electrolyte secondary battery electrodes contains: a copolymer of vinyl alcohol and an ethylenically unsaturated carboxylic acid alkali metal neutralized product; and a polyalkylene oxide.
Claims16
A binder for a nonaqueous electrolyte secondary battery electrode, the binder comprising:
- a copolymer of vinyl alcohol and an alkali metal-neutralized product of ethylene-unsaturated carboxylic acid;
- and
- polyalkylene oxide,
- wherein a mass ratio of the copolymer to the polyalkylene oxide is 95/5 to 30/70, and the polyalkylene oxide has a viscosity average molecular weight of 50,000 to 5,000,000.
1 more element
A binder for a nonaqueous electrolyte secondary battery electrode, the binder comprising:
- a copolymer of vinyl alcohol and an alkali metal-neutralized product of ethylene- unsaturated carboxylic acid;
- and
- polyethylene oxide,
- wherein:
- the polyethylene oxide has a viscosity average molecular weight of 150,000 to 3,800,000;
- and
- either:
- a mass ratio of the copolymer to the polyethylene oxide is 95/5 to 30/70, or
- a molar ratio of the vinyl alcohol to the alkali metal-neutralized product of ethylene-unsaturated carboxylic acid is 95/5 to 5/95.
6 more elements
Dependencies are inferred from the claim text.