Flexible Bismuth Selenide /Graphene composite paper for lithium-ion batteries

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• 作者：Xinhang Chen^a ; ^b ; Hongli Tang^a ; ^b ; Zongyu Huang^a ; ^b ; ^{zyhuang@xtu.edu.cn" class="auth_mail" title="E-mail the corresponding author} ; Jie Zhou^a ; ^b ; Xiaohui Ren^a ; ^b ; Kai Huang^a ; ^b ; Xiang Qi^a ; ^b ; Jianxin Zhong^a ; ^b
• 关键词：Bi2Se3 ; Graphene ; Flexible ; Binder-free ; Lithium-ion battery
• 刊名：Ceramics International
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：43
• 期：1
• 页码：1437-1442
• 全文大小：889 K

文摘

A flexible Bi₂Se₃/Graphene (BSG) composite paper has been prepared through a simple vacuum filtration method and a thermal reduction together. The BSG composite paper was directly used as anode electrode for lithium-ion batteries, without using any polymer binders or conduction additives. In contrast to the pure Bi₂Se₃, the BSG exhibits high reversible lithium ion storage capacities and superior cyclic capacity retention. It proposed that the superior lithium storage performances would be attributed to the special construction of the as-prepared BSG paper, in which the graphene can not only act as conductive network for electrodes, but also act as a frame to alleviate volume expansion or aggregation of Bi₂Se₃ nanosheets during lithiation/delithiation. The as-prepared BSG paper shows a great potential as an anode materials for flexible Li-ion batteries.