Title:
POSITIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, BATTERY MODULE AND BATTERY SYSTEM EACH USING SAME
Document Type and Number:
WIPO Patent Application WO/2024/048735
Kind Code:
A1
Abstract:
This positive electrode for nonaqueous electrolyte secondary batteries comprises a positive electrode collector (11) and a positive electrode active material layer (12) that is present on the positive electrode collector (11); a collector covering layer, which contains a conductive material, is present on at least a part of the positive electrode active material layer (12)-side surface of the positive electrode collector (11); the positive electrode active material layer (12) contains a positive electrode active material and a conductive carbon; the positive electrode active material contains a compound which is represented by general formula LiFexM(1-x)PO4; the positive electrode active material layer (12) has a void fraction of 40% or less; and the content of the conductive carbon relative to the total mass of the positive electrode active material layer (12) is 0.5 to 3.5% by mass.
Inventors:
MOMOZAKI TARO (JP)
YOSHIKAWA HIKARU (JP)
YOSHIKAWA HIKARU (JP)
Application Number:
PCT/JP2023/031861
Publication Date:
March 07, 2024
Filing Date:
August 31, 2023
Export Citation:
Assignee:
SEKISUI CHEMICAL CO LTD (JP)
International Classes:
H01M4/136; H01M4/36; H01M4/58; H01M4/62; H01M4/66
Foreign References:
| JP2018185892A | 2018-11-22 | |||
| JP2010212167A | 2010-09-24 | |||
| JP2018026314A | 2018-02-15 | |||
| JP2021051967A | 2021-04-01 |
Attorney, Agent or Firm:
NISHIZAWA Kazuyoshi et al. (JP)
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