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Fabrication Sandwich‐Like V 2 O 5 Nanosheets Anchor in Graphene Towards High Energy Lithium Cathode Materials
Author(s) -
Wu Lijun,
Zhang Yu,
Fan Lishuang,
Zhang Qi,
Wang Pengxiang,
Tian Da,
Zhang Naiqing,
Sun Kening
Publication year - 2018
Publication title -
energy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.91
H-Index - 44
eISSN - 2194-4296
pISSN - 2194-4288
DOI - 10.1002/ente.201800168
Subject(s) - graphene , cathode , fabrication , materials science , lithium (medication) , composite number , nanotechnology , chemical engineering , composite material , chemistry , medicine , alternative medicine , pathology , endocrinology , engineering
The conventional cathode cannot meet the constantly increasing demand for high specific capacity in next generation cathode. V 2 O 5 is an attractive cathode material due to its high theoretical specific capacity (294 mAh g −1 ) and affordable cost. Herein, we report a facile process for the fabrication of 2D sandwich‐like V 2 O 5 @Graphene nanosheets. Profiting from a synergic strategy inhibiting stacked layered structure and enhanced ion transport within interlayer, the sandwich‐like V 2 O 5 @Graphene composite exhibits exceptional high initial reversible capacity (300 mAh g −1 at the 0.5 C), excellent cyclic stability (203 mAh g −1 after 245 cycles) and high‐rate capability (165 mAh g −1 at the 10 C).