In situ construction of a favorable cathode electrolyte interphase through a fluorosilane additive for high-performance Li-rich cathode materials

作     者：Yuan-Yuan Pan Chang-Ding Qiu Shi-Jie Qin Zuo-Fei Wang Jing-Song Yang Heng-Jiang Cong Fu-Sheng Ke Yuan-Yuan Pan;Chang-Ding Qiu;Shi-Jie Qin;Zuo-Fei Wang;Jing-Song Yang;Heng-Jiang Cong;Fu-Sheng Ke

作者机构：Sauvage Center for Molecular SciencesCollege of Chemistry and Molecular SciencesWuhan UniversityWuhan 430072China 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2022年第41卷第11期

页      面：3630-3638页

核心收录：

学科分类：081702[工学-化学工艺] 0808[工学-电气工程] 08[工学] 0817[工学-化学工程与技术] 0806[工学-冶金工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：financially supported by the National Natural Science Foundation of China (Nos.22172116 and 21773176)。 

主　　题：electrolyte cycling additive 

摘      要：Li-rich manganese-based oxides (LRMO) with high capacities are attractive cathode materials for next-generation lithium-ion batteries.However,poor cycling stability is one of the key issues impeding their commercialization.Here,for the first time,we employed trimethoxy(3,3,3-trifluoropropyl)silane (TMTFS) as a multifunctional electrolyte additive to stabilize the LRMO cathode interphase and elevate its cycling performance.The LRMO electrode delivered a high reversible capacity of 250.4 mAh·g^(-1) with a stable capacity retention of 91% after 200 cycles.