Title:
BINDER, ELECTRODE MIXTURE, ELECTRODE, AND LITHIUM ION SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2023/182308
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a binder that has sufficient adhesiveness in small quantities and that is not prone to gelling even when mixed with a positive electrode active material including nickel. A binder that solves the above problem contains a vinylidene fluoride polymer, and the vinylidene fluoride polymer includes vinylidene fluoride-derived structural units and two or more structural units having a carboxy group, and the slurry viscosity ratio used in a specific method is not more than 100%.
Inventors:
ASHIDA KANA (JP)
OKADA KAYOKO (JP)
WATANABE KEISUKE (JP)
OKADA KAYOKO (JP)
WATANABE KEISUKE (JP)
Application Number:
PCT/JP2023/011009
Publication Date:
September 28, 2023
Filing Date:
March 20, 2023
Export Citation:
Assignee:
KUREHA CORP (JP)
International Classes:
H01M4/62; H01M4/525
Domestic Patent References:
| WO2019239781A1 | 2019-12-19 | |||
| WO2018008262A1 | 2018-01-11 | |||
| WO2019087652A1 | 2019-05-09 |
Foreign References:
| JP2014192136A | 2014-10-06 | |||
| JP2012219125A | 2012-11-12 | |||
| JP2018195552A | 2018-12-06 | |||
| JP2017188203A | 2017-10-12 |
Attorney, Agent or Firm:
WASHIDA & ASSOCIATES (JP)
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