石墨烯
阳极
材料科学
阴极
电极
电池(电)
石墨烯泡沫
纳米技术
氧化石墨烯纸
纳米材料
离子
光电子学
电气工程
物理
量子力学
工程类
物理化学
功率(物理)
化学
作者
Jinyun Liu,Qiye Zheng,Matthew D. Goodman,Haoyue Zhu,Jinwoo Kim,Neil A. Krueger,Hailong Ning,Xing‐Jiu Huang,Jinhuai Liu,Mauricio Terrones,Paul V. Braun
标识
DOI:10.1002/adma.201600829
摘要
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 (V2 O5 @graphene@V2 O5 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).
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