Title:
COMPOSITE ACTIVE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2023/127736
Kind Code:
A1
Abstract:
An composite active material according to the present invention has an active material and a surface part that is disposed on a surface of the active material and that contains a sulfur-containing compound. The active material contains a composite oxide that contains a lithium (Li) element, manganese (Mn) element, and oxygen (O) element and that has a spinel-type crystal structure. It is preferable for the active material to contain an M1 element, such as nickel, and an M2 element, such as titanium and aluminum. Further, it is preferable for the composite oxide to be represented by Li1+x(M1yM2zMn2-x-y-z)O4-δ(wherein 0≤x≤0.20, 0.20≤y≤1.20, 0≤z≤0.5, and 0≤δ≤0.2).
Inventors:
ITO TAKAHIRO (JP)
NAKAYAMA YUKI (JP)
MIYASHITA NORIHIKO (JP)
IKEDA TAKESHI (JP)
TAJIMA TAKETOSHI (JP)
KAWAMURA TAKERU (JP)
NAKAYAMA YUKI (JP)
MIYASHITA NORIHIKO (JP)
IKEDA TAKESHI (JP)
TAJIMA TAKETOSHI (JP)
KAWAMURA TAKERU (JP)
Application Number:
PCT/JP2022/047679
Publication Date:
July 06, 2023
Filing Date:
December 23, 2022
Export Citation:
Assignee:
MITSUI MINING & SMELTING CO LTD (JP)
International Classes:
H01M4/505; H01M4/131; H01M4/1391; H01M4/36; H01M4/525; H01M4/62
Domestic Patent References:
| WO2021251347A1 | 2021-12-16 |
Foreign References:
| JP2017152347A | 2017-08-31 | |||
| JP2021072259A | 2021-05-06 | |||
| JP2020181640A | 2020-11-05 | |||
| JP2019067506A | 2019-04-25 | |||
| JP2021131933A | 2021-09-09 |
Attorney, Agent or Firm:
SHOWA INTERNATIONAL PATENT FIRM (JP)
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