ZnO decorated TiO₂ nanosheet composites for lithium ion battery

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• 作者：Lin Gao ; Shaohui Li ; Dekang Huang ; Yan Shen ; Mingkui Wang ; ^{mingkui.wang@mail.hust.edu.cn" class="auth_mail" title="E-mail the corresponding author}
• 关键词：lithium ion battery ; TiO2@ZnO ; synergetic effect ; interconnection microstructure ; electrochemical performance
• 刊名：Electrochimica Acta
• 出版年：2015
• 出版时间：10 November 2015
• 年：2015
• 卷：182
• 期：Complete
• 页码：529-536
• 全文大小：3853 K

文摘

This work reports on successful fabrication of TiO₂@ZnO arrays nanocomposites for lithium ion battery application without any polymeric binder and conductive additives. The sandwich-like TiO₂@ZnO framework with 3D interconnected construction shows stable cycling performance with a specific capacity of 340.2 mAh g⁻¹ at a current density of 200 mA g⁻¹ after 100 cycles, which possesses more competitive cycling performance than the bare ZnO arrays. It is noted that the uniform decoration of ZnO nanoparticles onto the TiO₂ nanosheet arrays plays a significant role in advancing their electrochemical performance. The volume change and aggregation of ZnO nanoparticles can be efficiently mitigated with the support of TiO₂ nanosheet cushions. Interestingly, the TiO₂@ZnO array can be an ideal electrode for flexible electronics.