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首页> 外文期刊>Journal of Materials Chemistry, A. Materials for energy and sustainability >Novel MnO/carbon composite anode material with multi-modal pore structure for high performance lithium-ion batteries
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Novel MnO/carbon composite anode material with multi-modal pore structure for high performance lithium-ion batteries

机译：具有多峰孔结构的新型MnO /碳复合负极材料，用于高性能锂离子电池

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摘要

A new type of MnO/carbon composite particle with multi-modal pore structure was designed and prepared as anode materials of lithium-ion batteries through a promoted template method. The porous MnO/carbon composite anode materials exhibited the superior electrochemical performance, including excellent stability under different current density, high reversible capacity (as high as 1210.9 mA h g(-1) after 700 cycles at 1.0 A g(-1)), good rate capability and high initial coulomb efficiency of over 80%, which had benefited from the reasonable material composition, special multi-modal pore structure, desirable micro-morphology and good structural integrity. The complex multiphase structure consisting of MnO crystal grains, abundant nanopores and uniform carbon layers can effectively improve cyclic stability and rate capability of the anode materials, and thus will have an important application value in high-performance energy supply devices.
机译：通过改进的模板法，设计并制备了一种新型的具有多峰孔结构的MnO /碳复合颗粒作为锂离子电池负极材料。多孔MnO /碳复合阳极材料表现出优异的电化学性能，包括在不同电流密度下的优异稳定性，高可逆容量（在1.0 A g（-1）循环700次后可逆容量高达1210.9 mA hg（-1））得益于合理的材料组成，特殊的多峰孔隙结构，理想的微观形貌和良好的结构完整性，该技术具有很高的分离能力和80％以上的高初始库仑效率。由MnO晶粒，丰富的纳米孔和均匀的碳层组成的复杂多相结构可以有效地提高负极材料的循环稳定性和倍率性能，因此在高性能能源供应装置中具有重要的应用价值。

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