Title:
POSITIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY USING SAME, AND POSITIVE ELECTRODE SLURRY FOR POSITIVE ELECTRODES OF NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES
Document Type and Number:
WIPO Patent Application WO/2024/070502
Kind Code:
A1
Abstract:
Disclosed is a positive electrode for nonaqueous electrolyte secondary batteries. This positive electrode comprises a positive electrode collector and a positive electrode mixture layer that is disposed on the positive electrode collector. The positive electrode mixture layer contains: active material particles that have an average particle diameter of less than 5 µm; a conductive material; a dispersant; and a binder. The active material particles each comprise a composite oxide particle and a surface modification layer that is formed on the surface of the composite oxide particle and contains a boron compound. The composite oxide particle is a particle of a lithium transition metal composite oxide. The conductive material contains a carbon material. The dispersant contains a nitrile group-containing rubber. The binder contains a fluorine-containing polymer.
Inventors:
KURODA KOSUKE
UKA YOUICHIROU
UKA YOUICHIROU
Application Number:
PCT/JP2023/032093
Publication Date:
April 04, 2024
Filing Date:
September 01, 2023
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01M4/131; H01M4/1391; H01M4/36; H01M4/62
Domestic Patent References:
| WO2022210976A1 | 2022-10-06 |
Foreign References:
| JP2022099288A | 2022-07-04 | |||
| JP2021150051A | 2021-09-27 | |||
| JP2015115106A | 2015-06-22 |
Attorney, Agent or Firm:
KAWASAKI & PARTNERS (JP)
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