Title:
POSITIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERIES, AND SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2022/070897
Kind Code:
A1
Abstract:
The present invention uses a positive electrode active material for secondary batteries, said positive electrode active material containing a lithium metal composite oxide that has a crystal structure based on a rock salt structure belonging to the space group Fm-3m. The lithium metal composite oxide contains Cu and a transition metal element M1 that is other than Li and Cu. It is preferable that the lithium metal composite oxide is represented by composition formula LiaMnbCucA2
dO2-eFe (wherein A2 represents at least one element excluding Li, Mn, Cu, O and F; and 0 < a ≤ 1.35, 0.4 ≤ b ≤ 0.9, 0 < c ≤ 0.2, 0 ≤ d ≤ 0.2, 0 ≤ e ≤ 0.66 and 1.75 ≤ a + b + c + d ≤ 2 are satisfied).
Inventors:
ZHANG JIN
IKEUCHI ISSEI
HIBINO MITSUHIRO
NAKURA KENSUKE
IKEUCHI ISSEI
HIBINO MITSUHIRO
NAKURA KENSUKE
Application Number:
PCT/JP2021/033792
Publication Date:
April 07, 2022
Filing Date:
September 14, 2021
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01M4/505; H01M4/525
Domestic Patent References:
| WO2018100792A1 | 2018-06-07 | |||
| WO2018163519A1 | 2018-09-13 |
Foreign References:
| JP2017152369A | 2017-08-31 | |||
| JP2005011688A | 2005-01-13 | |||
| JP6197029B2 | 2017-09-13 |
Other References:
See also references of EP 4224578A4
Attorney, Agent or Firm:
KAWASAKI, HASHIMOTO AND PARTNERS (JP)
Download PDF: