Heterostructural SnO/SnO2@C composite fabricated from tin-based coordination polymer as high-performance anode materials for lithium ion batteries
Heterostructural SnO/SnO2@C composite fabricated from tin-based coordination polymer as high-performance anode materials for lithium ion batteries
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锡基配位聚合物异质结构SnO/SnO2@C复合材料作为高性能锂离子电池负极材料
DOI:
10.1016/j.matlet.2019.05.051
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发表时间:
2019-09
影响因子:
3
通讯作者:
Liu Jian-Jun
中科院分区:
文献类型:
--
作者:
Xia Shu-Biao;Li Fu-Shao;Shen Xiang;Li Xue;Cai Xiao-Lan;Liu Jian-Jun
We report a simple carbonization strategy to obtain a composite structured SnO/SnO2particles encapsulated into carbon matrix from a tin-based coordination polymer precursor at 500 °C carbonization. SnO/SnO2@C electrode delivers a capacity of 601.7 mAh g−1at 100 mA g−1after 50 cycles and a high capacity retention of 84.6% after 400 cycles, which is far superior to the precursor Sn-1 electrode. The excellent electrochemical performance of SnO/SnO2@C could be mainly attributed to the abundant carbon and well-dispersed SnO/SnO2particles which can improve the electronic conductivity and provide a path for the migration of electrons and ions.
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