Li4Ti5O12/graphene nanostructure for lithium storage with high-rate performance
作者： Jun Hu , Honglai Liu , Song Gyun Ri , Liang Zhan , Yun Wang
DOI: 10.1016/J.ELECTACTA.2013.07.059
关键词: Lithium titanate 、 Materials science 、 Anode 、 Nanostructure 、 Lithium 、 Ionic liquid 、 Electrolyte 、 Graphene 、 Lithium-ion battery 、 Chemical engineering 、 Inorganic chemistry
摘要: Abstract Nano-crystalline Li 4 Ti 5 O 12 with an average size of 18 nm was in situ grown on graphene sheets using ionic liquid C H 23 ClN 2 [Omim]Cl as the exfoliated agent. Such unique nanostructure provides a high electrode/electrolyte area for electron transport and nanosized leads to short path lithium ion transfer. When used anode material lithium-ion battery, /graphene exhibits excellent reversibility (159 mAh g −1 at 0.5 C after 100 cycles) high-rate performance (162 mAh g 0.2 C, 148.5 mAh g 20 C).
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