Title:
NON-AQUEOUS SECONDARY BATTERY POLYMER COMPOSITION AND NON-AQUEOUS SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2022/131253
Kind Code:
A1
Abstract:
This non-aqueous secondary battery polymer composition contains polymer particles having a unit U1 derived from an ethylenical monomer M1 and a unit U2 derived from an ethylenical monomer M2. The ethylenical monomer M1, as a homo-polymer, has a glass transition temperature of not more than -60ºC, and has a degree of swelling in an electrolytic solution of not more than 1.4 times. The ethylenical monomer M2, as a homo-polymer, has a glass transition temperature of not less than -100ºC, and has a degree of swelling in an electrolytic solution of not more than 1.2 times. With respect to 100 mass% of the total units derived from ethylenically unsaturated monomers constituting the polymer particles, the contained amount of the unit U1 is more than 50 mass%, and the contained amount of the unit U2 is not less than 5 mass% but less than 50 mass%. The polymer particles have a degree of swelling in an electrolytic solution of not more than 1.3 times.
Inventors:
IWAMOTO TADASHI (JP)
Application Number:
PCT/JP2021/046056
Publication Date:
June 23, 2022
Filing Date:
December 14, 2021
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
C08F220/06; C08F220/18; C08K5/47; C08L33/08; H01M4/62
Domestic Patent References:
| WO2011122297A1 | 2011-10-06 |
Foreign References:
| JP2000195521A | 2000-07-14 | |||
| JPH08287915A | 1996-11-01 | |||
| JP2015230884A | 2015-12-21 | |||
| JP2014175106A | 2014-09-22 | |||
| JP2014130702A | 2014-07-10 |
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
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