A review on the electrochemical reaction of Li-rich layered oxide materials. Issue 19 (3rd August 2021)

• Record Type: Journal Article
• Authors: Yang, Jingang; Niu, Yubin; Wang, Xi; Xu, Maowen
• Is Part Of: Inorganic chemistry frontiers. Volume 8:Issue 19(2021)
• Page Start: 4300
• Page End: 4312
• Publication Date: 2021-08-03
• Subjects: Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/d1qi00687h
• Languages: English
• ISSNs: 2052-1553

Abstract

Abstract : Lithium-rich layered oxide materials x Li2 MnO3 ·(1 − x )LiMO2 (M = Mn, Co, Ni, Fe, Cr, etc .) as promising cathode candidates for high energy Li-ion batteries have been summarized in this review. Abstract : Lithium-rich layered oxide materials x Li2 MnO3 ·(1 − x )LiMO2 (M = Mn, Co, Ni, Fe, Cr, etc .) are promising cathode candidates for high energy Li-ion batteries because of their high specific capacities (>250 mA h g −1 ) and reasonable working voltage. The high capacity comes from the activation of inactive Li2 MnO3 in the high voltage range (>4.5 V). However, many adverse factors appear along with the activation process, such as low initial coulombic efficiency and severe capacity and voltage fading during cycling, which limit the commercialization of Li-rich materials. This review based on existing research on the electrochemistry of Li-rich materials presents an introduction to the reaction mechanism, challenges and strategies and prospects.