文献类型：期刊文献

英文题名：High-efficiency Mo doping stabilized LiNi0.9Co0.1O2 cathode materials for rapid charging and long-life Li-ion batteries

作者：Zhu, Huawei[1,2];Yu, Haifeng[2];Jiang, Haibo[2];Hu, Yanjie[2];Jiang, Hao[1,2];Li, Chunzhong[1,2]

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

年份：2020

卷号：217

外文期刊名：CHEMICAL ENGINEERING SCIENCE

收录：;EI(收录号：20200608142716);WOS:【SCI-EXPANDED(收录号:WOS:000527336600023)】；

基金：This work was supported by the National Natural Science Foundation of China (21975074, 91534202, and 91834301), the Basic Research Program of Shanghai (17JC1402300), the Shanghai Scientific and Technological Innovation Project (18JC1410500), the National Program for Support of Top-Notch Young Professionals, and the Fundamental Research Funds for the Central Universities (222201718002).

语种：英文

外文关键词：LiNi0.9Co0.1O2; Mo doping; Rapid charging; Phase transformation; Li-ion batteries

摘要：Exploring the high-efficiency doping technique is the pivotal to strengthening the lattice of the Ni-rich cathode materials with rapid ions transfer for Li-ion batteries (LIBs). Herein, we have proposed a precursor doping insight with subsequent annealing to synthesize the LiNi0.9-xCo0.1MoxO2 cathode materials without the enrichment of extra components on the surface. The high MoAO bond energy (560.2 KJ/mol) greatly ehnaces the reversibility of H2-H3 phase transformation. Meantime, the Li/Ni disorder and lattice oxygen loss are also impeded due to the Ni substitution by Mo with an accelerated Li+ diffusion kinetic. The optimized LiNi0.89Co0.1Mo0.01O2 gives a quite high reversible capacity of 202.4 mAh g(-1) at 0.2 C and 139.5 mAh g(-1) at 5 C. About 94.4% capacity can still be achieved after 200 cycles, much higher than the corresponding LiNi0.9Co0.1O2 (only 68.3%). This work gives an efficient doping method of the Ni-rich cathode materials for long driving range LIBs. (C) 2020 Published by Elsevier Ltd.