Title:
POSITIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, METHOD FOR PRODUCING POSITIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2022/202361
Kind Code:
A1
Abstract:
The present invention provides a positive electrode for nonaqueous electrolyte secondary batteries, the positive electrode having improved adhesion, while suppressing variation in battery characteristics. A positive electrode for nonaqueous electrolyte secondary batteries according to one embodiment of the present disclosure comprises a positive electrode collector and a positive electrode mixture layer that is formed on the surface of the positive electrode collector; the positive electrode mixture layer contains a positive electrode active material, a conductive agent and a binder; the weight average molecular weight of the binder is 1,300,000 or more; and D10 and D90 in the particle size distribution of the binder satisfy (D90 - D10) ≥ 100 μm.
Inventors:
MUKASA YASUHIKO
FUJIWAKE HIDEAKI
FUJIMOTO HIROYUKI
FUJIWAKE HIDEAKI
FUJIMOTO HIROYUKI
Application Number:
PCT/JP2022/010594
Publication Date:
September 29, 2022
Filing Date:
March 10, 2022
Export Citation:
Assignee:
SANYO ELECTRIC CO (JP)
International Classes:
H01M4/13; H01M4/139; H01M4/62
Domestic Patent References:
| WO2019156086A1 | 2019-08-15 | |||
| WO2017195784A1 | 2017-11-16 | |||
| WO2019065909A1 | 2019-04-04 |
Foreign References:
| JP2020057606A | 2020-04-09 | |||
| JP2021504904A | 2021-02-15 |
Attorney, Agent or Firm:
YKI INTELLECTUAL PROPERTY ATTORNEYS (JP)
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