A rational designed high-rate CuxTi2(PO4)(3)@Cu/C core-composite-shell structure for aqueous lithium ion batteries
A rational designed high-rate CuxTi2(PO4)(3)@Cu/C core-composite-shell structure for aqueous lithium ion batteries
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合理设计的水系锂离子电池高倍率CuxTi2(PO4)(3)@Cu/C核复合壳结构
DOI：
10.1016/j.jpowsour.2020.228248
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发表时间：
2020
影响因子：
9.2
通讯作者：
Zhang Hongzhang
中科院分区：
文献类型：
--
作者：
Wang Fuxiang;Jiang Qike;Song Zihan;Liu Shanshan;Fen Kai;Yang Xin;Cao Zhenbo;Jia Jinsheng;Zhang Hongzhang
Aqueous lithium ion batteries (ALIBs) attract wide attentions due to their high safety, low cost and environmental friendliness. The performance of anode material is the limiting step for the wide application of ALIBs. Here, a core-composite-shell structure of CuxTi2(PO4)3@Cu/C is rationally designed, synthesized and investigated as a promising anode material for ALIBs. With high electronic and lithium ion conductivity in internal core and external shell simultaneously, the CuxTi2(PO4)3@Cu/C anode material shows excellent electrochemical performance. It delivers a specific capacity 135 mA h·g−1at 10 mA g−1(the largest value reported), excellent rate behaviors of 95 mA h·g−1at 2000 mA g−1, as well as long high rate cycling lifetimes (~80% after 900 cycles at 1000 mA g−1). This work not only provides a new anode material for ALIBs, but also proposes a new material structure design strategy and a facile synthesis method for the preparation of other alkali ions battery electrode materials.
