标题：Bimetallic Selenide LiInSe2 Decorated with a Uniform Carbon Layer with Superior Lithium Storage Performance
作者：Zhang, Mengqi; Liu, Yangyang; Zhang, Yupeng; Bai, Xue; Zhu, He; Li, Xuesong; Liu, Yang; Cui, Deliang; Li, Bo; Tao, Xutang
作者机构：[Zhang, Mengqi; Liu, Yangyang; Zhang, Yupeng; Zhu, He; Li, Xuesong; Liu, Yang; Cui, Deliang; Li, Bo; Tao, Xutang] Shandong Univ, State Key Lab Crystal 更多
通讯作者：Li, B;Tao, XT
通讯作者地址：[Li, B; Tao, XT]Shandong Univ, State Key Lab Crystal Mat, Jinan, Shandong, Peoples R China.
关键词：bimetallic chalcogenides; carbon layer; LiInSe2; lithium-ion batteries;; electrochemical performance
摘要：Owing to their relatively high electronic conductivity and electrochemical activity, bimetallic chalcogenides exhibit promising applications in advanced lithium-ion batteries. Herein, for the first time, a uniform thin carbon layer (about 2-3 nm) derived from citric acid coating bimetallic selenide, LiInSe2, is designed. When used as an anode material for lithium-ion batteries, the novel carbon-coated LiInSe2 anode delivers high initial charge/discharge capacities of 545.2/732.0 mAh g(-1) at a current density of 100 mA g(-1). Even after 800 cycles at 1500 mA g(-1), a high reversible capacity of 333 mAh g(-1) can be achieved, suggesting its superior rate capability and cycling stability. The excellent electrochemical performance of the carbon-coated LiInSe2 anode is ascribed to the improved electronic/ionic conductivity, electrochemical activity, and reaction kinetics. This remarkable lithium storage property indicates the potential application of bimetallic selenide for future lithium-ion batteries.