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Title:
BINDER COMPOSITION FOR NON-AQUEOUS SECONDARY BATTERY, SLURRY COMPOSITION FOR NON-AQUEOUS SECONDARY BATTERY ELECTRODE, ELECTRODE FOR NON-AQUEOUS SECONDARY BATTERY, AND NON-AQUEOUS SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2021/200350
Kind Code:
A1
Abstract:
Provided is a binder composition that makes it possible to achieve high peel strength in an electrode and excellent cycle characteristics in a secondary battery. A binder composition for a non-aqueous secondary battery, the binder composition containing a water-soluble polymer (A) and a water-soluble polymer (B), water-soluble polymer (A) being formed from at least one type of unit selected from the group that consists of unsaturated carboxylic acid monomer units, unsaturated carboxylic acid amide monomer units, unsaturated carboxylic acid ester monomer units, hydroxyl group–containing vinyl monomer units, and vinyl alcohol structural units, 100 parts by mass of water-soluble polymer (A) containing at least 5 parts by mass of an unsaturated carboxylic acid monomer unit, water-soluble polymer (B) being formed from at least one type of ethylenic unsaturated monomer unit, 100 parts by mass of water-soluble polymer (B) containing at least 5 parts by mass of an aromatic vinyl monomer unit that has a sulfonate group, and the weight average molecular weight of water-soluble polymer (A) being at least 4 times the weight average molecular weight of water-soluble polymer (B).

Inventors:
OSHIMA HIROKI (JP)
ADACHI YUSUKE (JP)
Application Number:
PCT/JP2021/011778
Publication Date:
October 07, 2021
Filing Date:
March 22, 2021
Export Citation:
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Assignee:
ZEON CORP (JP)
International Classes:
C08F12/30; C08F20/04; C08F22/02; C08L101/14; H01M4/134; H01M4/1395; H01M4/38; H01M4/62
Domestic Patent References:
WO2014024967A12014-02-13
WO2013080938A12013-06-06
WO2012115096A12012-08-30
Foreign References:
JP2014026868A2014-02-06
JP2001283859A2001-10-12
JP2011108467A2011-06-02
JP2012204303A2012-10-22
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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