Graphene Sandwiched Mesostructured Li-Ion Battery Electrodes

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• 作者：Jinyun Liu ; Qiye Zheng ; Matthew D. Goodman ; Haoyue Zhu ; Jinwoo Kim ; Neil A. Krueger ; Hailong Ning ; Xingjiu Huang ; Jinhuai Liu ; Mauricio Terrones and Paul V. Braun
• 刊名：Advanced Materials
• 出版年：2016
• 出版时间：September 21, 2016
• 年：2016
• 卷：28
• 期：35
• 页码：7696-7702
• 全文大小：1398K
• ISSN：1521-4095

文摘

A deterministic graphene-sandwiched Li-ion battery electrode consisting of an integrated 3D mesostructure of electrochemically active materials and graphene is presented. As demonstrations, electrodes with active nanomaterials that coat (V₂O₅@graphene@V₂O₅ cathode) or are coated by (graphene@Si@graphene anode) graphene are fabricated. These electrodes exhibit high capacities and ultralong cycle lives (the cathode can be cycled over 2000 times with minimal capacity fade).