• 文献标题:   Scallion-Inspired Graphene Scaffold Enabled High Rate Lithium Metal Battery
  • 文献类型:   Article
  • 作  者:   MA T, SU TY, ZHANG L, YANG JW, YAO HB, LU LL, LIU YF, HE CX, YU SH
  • 作者关键词:   graphene, microrod, scallion, lithium metal battery, rate capability
  • 出版物名称:   NANO LETTERS
  • ISSN:   1530-6984 EI 1530-6992
  • 通讯作者地址:  
  • 被引频次:   14
  • DOI:   10.1021/acs.nanolett.0c04033 EA MAR 2021
  • 出版年:   2021

▎ 摘  要

Graphene-based one-dimensional macroscopic assemblies (GBOMAs) have attracted great attention and extensive efforts have been devoted to enabling great progress. However, their applications are still restricted to less functionalized electronics, and the superior potentials remain scarce. Herein, inspired by natural scallion structure, a novel strategy was introduced to effectively improve battery performances through the mesoscale scallion-like wrapping of graphene. The obtained RGO/Ag-Li anodes demon-strated an ultralow overpotential of similar to 11.3 mV for 1800 h at 1 mA cm(-2). in carbonate electrolytes, which is superior to those of the most previous reports. Besides, this strategy can also be further expanded to the high mass loading of various cathode nanomaterials, and the resulting RGO/LiFePO4 cathodes exhibited remarkable rate performance and cycle stability. This work opens a new avenue to explore and broaden the applications of GBOMAs as scaffolds in fabricating full lithium batteries via maximizing their advantages derived from the unique structure and properties.