Two-dimensional layered In_(2)P_(3)S_(9): A novel superior anode material for sodium-ion batteries  

作　　者：Longsheng Zhong Hongneng Chen Yanzhe Sheng Yiting Sun Yanhe Xiao Baochang Cheng Shuijin Lei 

机构地区：[1]School of Physics and Materials Science,Nanchang University,Nanchang 330031,Jiangxi,China

出　　处：《Journal of Energy Chemistry》2024年第3期294-304,I0008,共12页能源化学（英文版）

基　　金：Financial supports from the National Natural Science Foundation of China(22265018 and 21961019);the Key Project of Natural Science Foundation of Jiangxi Province(20232ACB204010)。

摘　　要：Developing reliable and efficient anode materials is essential for the successfully practical application of sodium-ion batteries.Herein,employing a straightforward and rapid chemical vapor deposition technique,two-dimensional layered ternary indium phosphorus sulfide(In_(2)P_(3)S_(9)) nanosheets are prepared.The layered structure and ternary composition of the In_(2)P_(3)S_(9) electrode result in impressive electrochemical performance,including a high reversible capacity of 704 mA h g^(-1) at 0.1 A g^(-1),an outstanding rate capability with 425 mA h g^(-1) at 5 A g^(-1),and an exceptional cycling stability with a capacity retention of88% after 350 cycles at 1 A g^(-1).Furthermore,sodium-ion full cell also affords a high capacity of 308 and114 mA h g^(-1) at 0.1 and 5 A g^(-1).Ex-situ X-ray diffraction and ex-situ high-resolution transmission electron microscopy tests are conducted to investigate the underlying Na-storage mechanism of In_(2)P_(3)S_(9).The results reveal that during the first cycle,the P-S bond is broken to form the elemental P and In_(2)S_(3),collectively contributing to a remarkably high reversible specific capacity.The excellent electrochemical energy storage results corroborate the practical application potential of In_(2)P_(3)S_(9) for sodium-ion batteries.

关 键 词：Metal thiophosphate In_(2)P_(3)S_(9) Anode material Sodium-ion battery Full cell 

分 类 号：TM912[电气工程—电力电子与电力传动]