文献类型：期刊文献

英文题名：Self-assembly formation of hierarchical mixed spinel MnCo2O4 porous nanospheres confined by polypyrrole pyrolytic carbon for high-performance lithium storage

作者：Zhang, P.[1];Liu, J.[1];Wu, J.[1];Wang, W.[1];Zhou, C.[1];Guo, S.[1];Li, S.[1];Yang, Y.[1];Chen, L.[1]

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

年份：2020

卷号：17

外文期刊名：MATERIALS TODAY ENERGY

收录：;EI(收录号：20202508849886);WOS:【SCI-EXPANDED(收录号:WOS:000576975100005)】；

基金：This work was supported by the National Natural Science Foundation of China (51502092), the Fundamental Research Funds for the Central Universities (222201718002), the Thousand Talents Program Young Project in China, and the Program for Eastern Scholar at Shanghai Institutions of Higher Learning (TP2015028).

语种：英文

外文关键词：Mixed spine] MnCo2O4; Lithium ion batteries; Self-assembly ability; Hierarchical porous nanosphere; Polypyrrole pyrolytic carbon

摘要：The spinel MnCo2O4 characterizing metallic synergistic effect and multi-electron transfer is a promising anode material in lithium-ion batteries (LIBs) fields. In the work, the MnCo2O4 porous nanospheres are prepared in virtue of self-assembly ability of glycerol micro-emulsion and subsequent annealing under appropriate temperature. Polypyrrole pyrolytic carbon is introduced to hybridize with low-dimension MnCo2O4 material to settle the common problems of intrinsic low electrical conductivity and severe volume expansion of electrode material. Because of hierarchical porous structure, polypyrrole pyrolytic carbon and metallic synergistic effect, the electrode delivers higher specific capacity, better rate capability and long-term cycling stability compared to several spinel-type oxides/carbon composites. (C) 2020 Elsevier Ltd. All rights reserved.