Title:
CATHODE ACTIVE MATERIAL FOR LITHIUM ION BATTERY COMPRISING METAL HAVING FIXED OXIDATION NUMBER AND LITHIUM-RICH LAYERED OXIDE, AND LITHIUM ION BATTERY COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2023/063702
Kind Code:
A1
Abstract:
One embodiment of the present invention provides a lithium-rich layered oxide-based cathode active material comprising M1 that is a Group 1 or Group 2 metal, M2 that is a Group 14 and Group 15 element excluding non-metals, and a fourth periodic transition metal. Another embodiment of the present invention provides a lithium-rich layered oxide-based cathode active material comprising N1 that is a Group 1 or Group 2 metal, N2 that is a Group 14 and Group 15 element excluding non-metals, and a fifth periodic transition metal or a sixth periodic transition metal. The cathode active material for a lithium ion battery of the present invention comprises a metal having a fixed oxidation number, and thus has the advantages of having excellent lifespan characteristics while maintaining high energy density and high coulombic efficiency.
Inventors:
KIM JONG SOON (KR)
AHN JIN HO (KR)
KANG JUNG MIN (KR)
LEE YONG SEOK (KR)
AHN JIN HO (KR)
KANG JUNG MIN (KR)
LEE YONG SEOK (KR)
Application Number:
PCT/KR2022/015350
Publication Date:
April 20, 2023
Filing Date:
October 12, 2022
Export Citation:
Assignee:
RESEARCH ＆ BUSINESS FOUNDATION SUNGKYUNKWAN UNIV (KR)
International Classes:
H01M4/505; C01G51/00; C01G55/00; H01M4/02; H01M4/485; H01M10/0525
Foreign References:
| KR20160081111A | 2016-07-08 | |||
| KR102292385B1 | 2021-08-23 | |||
| JP2018056114A | 2018-04-05 | |||
| KR20150004645A | 2015-01-13 | |||
| KR20200100474A | 2020-08-26 |
Attorney, Agent or Firm:
HAN, Sang Soo (KR)
Download PDF: