材料科学
电化学
电池(电)
电导率
复合数
阴极
石墨烯
化学工程
水溶液
氧化物
纳米技术
复合材料
冶金
电极
化学
有机化学
功率(物理)
物理
物理化学
量子力学
工程类
作者
Jinshi Li,Qingning Li,Hao Pang,Zhaozhe Yu,Dong Yan
标识
DOI:10.1016/j.matlet.2022.132301
摘要
Graphene oxide (GO) and layered K2V3O8 materials are compounded to prepare K2V3O8@GO composite materials with stable structure and excellent conductivity. Zn//K2V3O8@GO battery obtains a high specific capacity of 334.8 mAh g−1 at 100 mA g−1, excellent rate capability with high specific capacity of 161.2 mAh g−1 at 5000 mA g−1 and good cycle stability with capacity retention of 75.7% after 2000 cycles at 5000 mA g−1. Large specific surface area, stable structure and excellent conductivity of K2V3O8@GO are responsible for its improved electrochemical property.
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