A Quasi-Solid-State Li-Ion Capacitor Based on Porous TiO₂ Hollow Microspheres Wrapped with Graphene Nanosheets

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• 作者：Faxing Wang ; Chun Wang ; Yujuan Zhao ; Zaichun Liu ; Zheng Chang ; Lijun Fu ; Yusong Zhu ; Yuping Wu and Dongyuan Zhao
• 刊名：Small
• 出版年：2016
• 出版时间：December 7, 2016
• 年：2016
• 卷：12
• 期：45
• 页码：6207-6213
• 全文大小：1679K
• ISSN：1613-6829

文摘

The quasi-solid-state Li-ion capacitor is demonstrated with graphene nanosheets prepared by an electrochemical exfoliation as the positive electrode and the porous TiO₂ hollow microspheres wrapped with the same graphene nanosheets as the negative electrode, using a Li-ion conducting gel polymer electrolyte. This device may be the key to bridging the gap between conventional lithium-ion batteries and supercapacitors, meanwhile meeting the safety demands of electronic devices.