Title:
POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2023/013494
Kind Code:
A1
Abstract:
Provided is a positive electrode active material for a lithium secondary battery, the positive electrode active material comprising a lithium metal composite oxide and an Li-X compound containing Li and an element X. The Li-X compound is a lithium ion-conductive oxide, and the lithium metal composite oxide contains secondary particles that are aggregates of primary particles. The secondary particles have gaps between the primary particles, and the Li-X compound is present at least in the gaps. The element X is one or more element selected from the group consisting of Nb, W, and Mo. This positive electrode active material for a lithium secondary battery satisfies the relational expression (A). (A): 4.95 ≦ LA/Lav
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Inventors:
TACHIBANA SHINGO (JP)
Application Number:
PCT/JP2022/028930
Publication Date:
February 09, 2023
Filing Date:
July 27, 2022
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
H01M4/525; C01G53/00; H01M4/131; H01M4/36; H01M4/505
Domestic Patent References:
| WO2018123951A1 | 2018-07-05 | |||
| WO2014192759A1 | 2014-12-04 | |||
| WO2014051089A1 | 2014-04-03 |
Foreign References:
| JP2018098218A | 2018-06-21 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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