Nowadays, Graphite-based materials are the main anode material for current commercial lithium-ion battery (LIB) ( Kang et al., 2006 Scrosati et al., 2011 Xie et al., 2012 Goodenough and Park, 2013 Yuan et al., 2014 Yan et al., 2017). The superlattice structure can improve ionic conductivity to enhance charge transport kinetics of the bulk material, while the hollow multi-porous architecture can provide enough void spaces to alleviate the architectural change during cycling, and shorten the lithium ions diffusion and electron-transportation distances. The enhanced electrochemical performance can be attributed to the synergistic effects of the superlattice structure and the hollow multi-porous architecture of the NiMn 2O 4/NiCo 2O 4 compound. It is demonstrated that the obtained NiCo 1.5Mn 0.5O 4 sample is made up of a new mixed-phase NiMn 2O 4/NiCo 2O 4 compound system, with a high charge capacity of 532.2 mAh g −1 with 90.4% capacity retention after 100 cycles at a current density of 1 A g −1. Herein, a combined structure and architecture modulation is proposed to tackle concurrently the two handicaps, via a facile and well-controlled solvothermal approach to synthesize NiMn 2O 4/NiCo 2O 4 mesocrystals with superlattice structure and hollow multi-porous architecture. 4School of Metallurgy and Environment, Central South University, Changsha, ChinaĪs a promising high-capacity anode material for Li-ion batteries, NiMn 2O 4 always suffers from the poor intrinsic conductivity and the architectural collapse originating from the volume expansion during cycle.3School of Iron and Steel, Soochow University, Suzhou, China.2Hunan Provincial Key Laboratory of Efficient and Clean Energy Utilization, Changsha University of Science and Technology, Changsha, China.
1School of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, China.Lingjun Li 1,2 *, Qi Yao 1, Jiequn Liu 3, Kaibo Ye 1, Boyu Liu 1, Zengsheng Liu 1, Huiping Yang 1, Zhaoyong Chen 1, Junfei Duan 1 and Bao Zhang 4 *
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