Poly-dopamine coated graphite oxide/silicon composite as anode of lithium ion batteries
Poly-dopamine coated graphite oxide/silicon composite as anode of lithium ion batteries
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聚多巴胺涂层氧化石墨/硅复合材料作为锂离子电池负极
DOI:
10.1016/j.powtec.2017.01.063
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发表时间:
2017-04
影响因子:
5.2
通讯作者:
Pan Mu
中科院分区:
文献类型:
--
作者:
Wu Jing;Tu Wenmao;Zhang Yong;Guo Binlin;Li Shanshan;Zhang Yue;Wang Yadong;Pan Mu
PDA/GO-Si composite is synthesized and tested as anode material for lithium ion batteries. Silicon nanoparticles were first cooperated with graphite oxide (GO) and then embedded into a poly-dopamine (PDA) layer.PDA provides accommodation of volume change and protection to prevent the direct contact of the Si surface with electrolyte during charge/discharge cycling. GO acts as both volume change buffer and conductive support for the electrode. An initial discharge capacity of 2903 mAh•g− 1was realized. A capacity of 1300 mAh•g− 1was maintained after 450 cycles. The excellent capacity reversibility and long-term cycling stability of PDA/GO-Si was attributed to the intelligent structure and composition of the synthesized material.
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