文献类型：期刊文献

英文题名：Nanospace-confined synthesis of coconut-like SnS/C nanospheres for high-rate and stable lithium-ion batteries

作者：Deng, Zongnan[1];Jiang, Hao[1];Hu, Yanjie[1];Li, Chunzhong[1];Liu, Yu[2];Liu, Honglai[2]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2018

卷号：64

期号：6

起止页码：1965

外文期刊名：AICHE JOURNAL

收录：;EI(收录号：20180304660649);WOS:【SCI-EXPANDED(收录号:WOS:000431733600006)】；

基金：This work was supported by the National Natural Science Foundation of China (21522602, 51672082, 91534202, and 91534122), the Shanghai Rising-Star Program (15QA1401200), the Basic Research Program of Shanghai (17JC1402300), Innovation Program of Shanghai Municipal Education Commission, and the Fundamental Research Funds for the Central Universities (222201718002).

语种：英文

外文关键词：confined synthesis; micro-evaporation-plating; SnS; hollow nanospheres; lithium-ion batteries

摘要：Coconut-like monocrystalline SnS/C nanospheres are developed as anode materials for lithium-ion batteries by a micro-evaporation-plating strategy in confined nanospaces, achieving reversible capacities as high as 936 mAhg(-1) at 0.1 Ag-1 after 50 cycles and 830 mAhg(-1) at 0.5 Ag-1 for another 250 cycles. The remarkably improved electrochemical performances can be mainly attributed to their unique structural features, which can perfectly combine the advantages of the face-to-face contact of core/shell nanostructure and enough internal void space of yolk/shell nanostructure, and therefore well-addressing the pivotal issues related to SnS low conductivity, sluggish reaction kinetics, and serious structure pulverization during the lithiation/delithiation process. The evolutionary process of the nanospheres is clearly elucidated based on experimental results and a multiscale kinetic simulation combining the microscopic reaction-diffusion equation and the mesoscopic theory of crystal growth. Furthermore, a LiMn2O4//SnS/C full cell is assembled, likewise exhibiting excellent electrochemical performance. (c) 2018 American Institute of Chemical Engineers AIChE J, 64: 1965-1974, 2018