Tubular graphene-supported nanoparticulate manganese carbodiimide as a free-standing high-energy and high-rate anode for lithium ion batteries
Tubular graphene-supported nanoparticulate manganese carbodiimide as a free-standing high-energy and high-rate anode for lithium ion batteries
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管状石墨烯支撑的纳米颗粒碳二亚胺锰作为锂离子电池的独立式高能高倍率阳极
DOI：
10.1016/j.jpowsour.2020.228252
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发表时间：
2020-08
影响因子：
9.2
通讯作者：
Huang Fuqiang
中科院分区：
文献类型：
--
作者：
Li Tao;Zhao Wei;Bi Hui;Tang Yufeng;Huang Fuqiang
Combination of high-energy density and high-power density is highly pursued in the development of advanced lithium ion batteries (LIBs). In this paper, we fabricate a free-standing anode composed of tubular graphene-supported nanoparticulate manganese carbodiimide (TG/MnNCN) for high-energy and high-power LIBs. MnNCN nanoparticles conformally coated three-dimensional TG with high surface area provide abundant active sites for electrochemical reaction and the high conductivity of TG facilitates intrinsic electron pathways and efficient ion transport channels. More importantly, the non-covalent π-π interaction between NCN group and graphene is beneficial for interfacial charge transport. Consequently, the TG/MnNCN anode exhibits a high areal capacity of 9.8 mA h cm−2at 0.5 mA cm−2and a high rate capacity of 3.5 mA h cm−2at 50 mA cm−2even at a high mass loading of up to 10 mg cm−2. Excitingly, the TG/MnNCN anode also presents impressive performance in Li-ion full cell (coupled with LiCoO2cathode) with an outstanding energy density (15.08 mWh cm−2and 343 Wh kg−1) and power density (378.5 mW cm−2and 8.7 kW kg−1), indicating the potential for high-energy and high-power LIB applications.
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影响因子：
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作者：
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影响因子：
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DOI：
10.1039/c8ta00940f
发表时间：
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期刊：
Journal of Materials Chemistry. A
影响因子：
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影响因子：
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