Title:
二次電池用正極材料の製造方法
Document Type and Number:
Japanese Patent JP7358551
Kind Code:
B2
Abstract:
A preparation method of a cathode material for a secondary battery is provided. First, a lithium metal phosphate material and a first conductive carbon (C1) are provided. The lithium metal phosphate material is made of a plurality of secondary particles (10). Each of the secondary particles (10) is formed by the aggregation of a plurality of primary particles (100). An interparticle space (200) is formed between the plurality of primary particles (100). Next, the lithium metal phosphate material and the first conductive carbon (C1) are mixed by a mechanical method, and a composite material (1) is prepared. The first conductive carbon (C1) is uniformly arranged in the interparticle space (200). After that, a second conductive carbon (C2), a binder (B) and a solvent are provided. Finally, the composite material (1), the second conductive carbon (C2), the binder (B) and the solvent are mixed, and a cathode material for preparing a positive plate (2) is prepared.
Inventors:
Yellow wave
Apology
Kai Hayashi
Wang Guohan
Apology
Kai Hayashi
Wang Guohan
Application Number:
JP2022072785A
Publication Date:
October 10, 2023
Filing Date:
April 26, 2022
Export Citation:
Assignee:
Advanced Lithium Electrochemistry Co.,Ltd.
International Classes:
H01M4/58; H01M4/36
Domestic Patent References:
| JP2015153535A |
Attorney, Agent or Firm:
SK Patent Attorney Corporation
Akihiko Okuno
Hiroyuki Ito
Akihiko Okuno
Hiroyuki Ito