Vacancy-enhanced oxygen redox and structural stability of spinel Li2Mn3O7−x. Issue 83 (29th September 2022)

• Record Type: Journal Article
• Authors: Yang, Lu; Liu, Zepeng; Li, Shuwei; Hu, Zhiwei; Kong, Qingyu; Shen, Xi; Liu, Qi; Zhu, He; Chen, Jin-Ming; Haw, Shu-Chih; Gao, Yurui; Yingying, Wang; Su, Dong; Wang, Xuefeng; Yu, Richeng; Wang, Zhaoxiang; Chen, Liquan
• Is Part Of: Chemical communications. Volume 58:Issue 83(2022)
• Page Start: 11685
• Page End: 11688
• Publication Date: 2022-09-29
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d2cc03259g
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Soft-chemistry prepared spinel [Li4/7 Mn2/7 □1/7 ]8a [Li4/7 Mn10/7 ]16d [O4− x ′ ]32e (Li2 Mn3 O7− x ) with both Li–O–□ and Li–O–Li configurations exhibits oxygen redox and low-strain features during cycling. Abstract : Vacancies have been proved effective in activating the oxygen redox and stabilizing the structure of the oxide cathode materials for the Na-ion batteries, but their effect on the cathode materials of the Li-ion batteries is unclear. We herein show that they have similar effect on spinel [Li4/7 Mn2/7 □1/7 ]8a [Li4/7 Mn10/7 ]16d [O4− x ′ ]32e .