Zhang Wudi, Zhang Qianyu, Shi Qiufan, Xin Sen, Wu Jiang, Zhang Chuan-Ling, Qiu Lifeng, Zhang Chaofeng
School of Chemistry and Chemical Engineering , Hefei University of Technology , Hefei , Anhui 230009 , P. R. China.
Department of Materials Science and Engineering , Dongguan University of Technology , Songshan Lake , Dongguan , Guangdong 523808 , P. R. China.
ACS Appl Mater Interfaces. 2019 Aug 21;11(33):29934-29940. doi: 10.1021/acsami.9b09056. Epub 2019 Aug 6.
Constructing advanced anode materials with suitable operational potential and high energy density toward metal ion batteries is of significance for next-generation batteries. Carbon-coated porous SbTe nanoplates with high density and suitable operational potential, prepared by a hydrothermal and carbonization technique, manifest good electrochemical performance, including excellent rate capability, high capacities, and outstanding cycling performance. This performance can be traced to its special structure, including porous SbTe and the shell of carbon, which can provide fast charge transfer paths and maintain the structural stability for the entire material. The proposed strategy here of embedding porous high-density anode material in two-dimensional carbon provides a new avenue for designing anode materials with excellent gravimetric and volumetric capacities toward superior energy storage.
构建具有合适工作电位和高能量密度的先进阳极材料对于金属离子电池的下一代发展具有重要意义。通过水热和碳化技术制备的具有高密度和合适工作电位的碳包覆多孔SbTe纳米片表现出良好的电化学性能，包括优异的倍率性能、高容量和出色的循环性能。这种性能可归因于其特殊结构，包括多孔SbTe和碳壳，它们可以提供快速的电荷转移路径并保持整个材料的结构稳定性。这里提出的将多孔高密度阳极材料嵌入二维碳中的策略为设计具有优异重量和体积容量的阳极材料以实现卓越的能量存储提供了一条新途径。
