Title:
BINDER COMPOSITION FOR ELECTROCHEMICAL ELEMENTS, ELECTRICALLY CONDUCTIVE MATERIAL DISPERSION FOR ELECTROCHEMICAL ELEMENTS, SLURRY FOR ELECTROCHEMICAL ELEMENT ELECTRODES, ELECTRODE FOR ELECTROCHEMICAL ELEMENTS, AND ELECTROCHEMICAL ELEMENT
Document Type and Number:
WIPO Patent Application WO/2023/276788
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a binder composition able to form an electrode in which an increase in internal resistance can be suppressed following electrochemical element cycles. This binder composition contains a polymer X, N-methyl-2-pyrrolidone, and a nitrogen compound other than N-methyl-2-pyrrolidone. The polymer X contains a nitrile group-containing monomer unit and also contains an aliphatic conjugated diene monomer unit and/or an alkylene structural unit. The molecular weight of the nitrogen compound is 1000 or less. In addition, the HSP distance (RA) between the nitrogen compound and the polymer X is 10.0 MPa1/2 or less.
Inventors:
ITO YUKIE (JP)
MIYAMAE TSUBASA (JP)
MIYAMAE TSUBASA (JP)
Application Number:
PCT/JP2022/024737
Publication Date:
January 05, 2023
Filing Date:
June 21, 2022
Export Citation:
Assignee:
ZEON CORP (JP)
International Classes:
H01M4/62; C08F220/42; C08F236/04; C08K5/3415; C08K5/3442; C08L101/02; H01G11/26; H01G11/38; H01G11/40; H01M4/13; H01M4/139
Domestic Patent References:
| WO2019107463A1 | 2019-06-06 | |||
| WO2020116524A1 | 2020-06-11 | |||
| WO2012115096A1 | 2012-08-30 |
Foreign References:
| JP2020187866A | 2020-11-19 | |||
| JP2013179040A | 2013-09-09 | |||
| JP4509792B2 | 2010-07-21 | |||
| JP2012204303A | 2012-10-22 |
Other References:
HANSEN SOLUBILITY PARAMETERS IN PRACTICE (HSPIP
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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