期刊
CHEMICAL ENGINEERING JOURNAL
卷 378, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2019.122207
关键词
Three-dimensional; Hierarchical porous; MnCo2O4@MnO2 network; Core-shell structure; Lithium ion batteries
In this paper, a three-dimensional hierarchical porous MnCo2O4@MnO2 network was prepared via a facile route and used as anode material for lithium-ion batteries. The prepared material possesses three-dimensional interconnect structure and abundant pore structure, which is favorable for alleviating volume expansion and constructing electron/ion transport channels. In addition, the synergistic and protective effects produced by core-shell structure further enhance the electrochemical performance of material. Merited by this unique structure, MnCo2O4@MnO2 delivers superior cycle stability with a capacity retention of 96% after 200 cycles at a current density of 100 mA g(-1) and large capacitive contribution. Besides, the strategy holds potential for mass production, since the method is simple and most of chemicals is recyclable.
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