Coupling a Three-Dimensional Nanopillar and Robust Film to Guide Li-Ion Flux for Dendrite-Free Lithium Metal Anodes

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

View graph of relations

Author(s)

  • Kemeng Liao
  • Zhiqiang Li
  • Yingzhi Li
  • Long Kong
  • He Huang
  • Sisi Wu
  • Jingjing Chen
  • Qingmeng Gan
  • Zhouguang Lu

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)45416-45425
Journal / PublicationACS Applied Materials and Interfaces
Volume13
Issue number38
Online published14 Sep 2021
Publication statusPublished - 29 Sep 2021

Abstract

Lithium metal batteries with high theoretical capacity critically suffer from low cycling stability and safety issues mostly due to lithium dendrites. Regulating the Li-ion conduction and Li deposition is essential to achieve dendritic-free Li metal anodes. Herein, a synergistic strategy that combines a 3D nanocopper layer and a robust polymer protective layer is proposed. The 3D nanocopper layer in situ formed on the Li surface could achieve a uniform electric field distribution and contribute to reducing the nucleation barrier for Li deposition and refining the grain size of Li crystallites. Meanwhile, the Li-Nafion film with high Li-ion conductivity and good flexibility was used as a protective layer to provide homogeneous ion distribution and adapt to the volume change during the Li deposition. Consequently, the NCuLi∥LiCoO2 full cells exhibited outstanding cycling stability (a capacity retention of 90% over 500 cycles). Our results indicate that the synergistic control of Li-ion conduction and Li deposition is a promising method to achieve dendritic-free Li metal anodes.

Research Area(s)

  • 3D nanocopper layer, Li dendrite, Li deposition, Li metal anodes, Li-ion conduction, Li-Nafion

Citation Format(s)

Coupling a Three-Dimensional Nanopillar and Robust Film to Guide Li-Ion Flux for Dendrite-Free Lithium Metal Anodes. / Liao, Kemeng; Li, Zhiqiang; Gu, Shuai; Li, Yingzhi; Kong, Long; Qin, Ning; Huang, He; Wu, Sisi; Chen, Jingjing; Gan, Qingmeng; Zhang, Kaili; Lu, Zhouguang.

In: ACS Applied Materials and Interfaces, Vol. 13, No. 38, 29.09.2021, p. 45416-45425.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review