Research Progress in Lithium-Excess Disordered Rock-Salt Oxides Cathode

作     者：Manxi Wang Xiaochuan Chen Hurong Yao Ganggang Lin Jinhyuk Lee Yuming Chen Qinghua Chen Manxi Wang;Xiaochuan Chen;Hurong Yao;Ganggang Lin;Jinhyuk Lee;Yuming Chen;Qinghua Chen

作者机构：College of Environmental Science and Engineering and College of Physics and EnergyFujian Normal UniversityFuzhou 350000China School of ChemistrySun Yat-sen UniversityGuangzhou 510275China State Grid Fujian EHV CompanyFuzhou 350000China Department of Mining and Materials EngineeringMcGill UniversityMontrealQC H3A 0C5Canada 

出 版 物：《Energy & Environmental Materials》 (能源与环境材料（英文）)

年 卷 期：2022年第5卷第4期

页      面：1139-1154页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 

基　　金：financially supported by the National Natural Science Foundation of China(Nos.22179022,22109023 and 22179021) the Industry-University-Research Joint Innovation Project of Fujian Province(No.2021H6006) the Award Program for Fujian Minjiang Scholar Professorship the Talent Fund Program of Fujian Normal University the support from the NSERC Discovery Grant(NSERC RGPIN-2020-04463) McGill Start-Up Grant 

主　　题：disordered rock-salt oxides lithium-excess lithium-ion batteries 

摘      要：The increasing demand for new energy sources has promoted the improvement of the energy storage capacity of lithium-ion batteries(LIBs)that urged the development of higher energy density cathode *** enhancement of the classical cathode in the last 30 years has reached a bottleneck,and then the discovery of the lithium-excess disordered materials has greatly expanded the research space of the cathode *** with the conventional layered oxides,the lithium-excess disordered rock-salt oxides(LEDRXs)with a more stable structure has higher extractable Li^(+)content,even though the inactive high-valent transition metals(TMs)were needed to compensate for the excess Li,which would reduce the total TM redox *** addition,oxygen redox provides additional electron capacity for the materials,which also causes O loss and results in the subsequent poor cycle ***,a series of studies about LEDRXs and their targeted modification measures are summarized,including the prospect of the materials,in order to provide ideas for the design of highperformance ***,the new discoveries and outlook on future research directions of LEDRX cathode materials for LIBs with higher energy density are given.