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 

机构地区：[1]Sauvage Center for Molecular Sciences,College of Chemistry and Molecular Sciences,Wuhan University,Wuhan 430072,China

出　　处：《Rare Metals》2022年第11期3630-3638,共9页稀有金属（英文版）

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

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.

关 键 词：ELECTROLYTE CYCLING ADDITIVE 

分 类 号：TM912[电气工程—电力电子与电力传动] TQ131.11[化学工程—无机化工]