Lotus-Root-Like Carbon Fibers Embedded with Ni–Co Nanoparticles for Dendrite-Free Lithium Metal Anodes

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Chen Chen
  • Jun Guan
  • Nian Wu Li
  • Yue Lu
  • Cai Hong Zhang
  • Guang Cheng
  • Le Yu

Detail(s)

Original languageEnglish
Article number2100608
Journal / PublicationAdvanced Materials
Volume33
Issue number24
Online published7 May 2021
Publication statusPublished - 17 Jun 2021
Externally publishedYes

Abstract

The growth of lithium (Li) dendrites and the huge volume change are the critical issues for the practical applications of Li-metal anodes. In this work, a spatial control strategy is proposed to address the above challenges using lotus-root-like Ni–Co hollow prisms@carbon fibers (NCH@CFs) as the host. The homogeneously distributed bimetallic Ni–Co particles on the N-doped carbon fibers serve as nucleation sites to effectively reduce the overpotential for Li nucleation. Furthermore, the 3D conductive network can alter the electric field. More importantly, the hierarchical lotus-root-like hollow fibers provide sufficient void space to withstand the volume expansion during Li deposition. These structural features guide the uniform Li nucleation and non-dendritic growth. As a result, the NCH@CFs host enables a very stable Li metal anode with a low voltage hysteresis during repeated Li plating/stripping for 1200 h at a current density of 1 mA cm−2. © 2021 Wiley-VCH GmbH

Research Area(s)

  • carbon, hollow structures, lithiophilic nucleation sites, lithium dendrite suppression, spatial control

Citation Format(s)

Lotus-Root-Like Carbon Fibers Embedded with Ni–Co Nanoparticles for Dendrite-Free Lithium Metal Anodes. / Chen, Chen; Guan, Jun; Li, Nian Wu et al.
In: Advanced Materials, Vol. 33, No. 24, 2100608, 17.06.2021.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review