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In situ assembly of 2D cobalt sulfide on stainless steel mesh as a binder-free anode for sodium ion batteries

  • Guoquan Suo
  • , Dan Li
  • , Lei Feng
  • , Xiaojiang Hou
  • , Qiyao Yu
  • , Yanling Yang*
  • , Wei (Alex) Wang
  • *Corresponding author for this work
  • Shaanxi University of Science and Technology
  • Peking University

Research output: Contribution to journalArticlepeer-review

Abstract

Sodium-ion batteries (SIBs) are promising alternatives to lithium-ion batteries (LIBs) in view of the natural abundance and low cost of sodium resource. Constructing high-performance anode is essential and challenging for the futuristic SIBs development. Transition metal sulfides have been proved as promising anode materials for SIBs due to their large specific capacities. Here, in situ assembly of cobalt sulfide nanosheets on stainless steel mesh (SSM/CoS) as a binder-free anode for SIBs is carried out through a facile electrochemical deposition procedure. The SSM/CoS products are directly used as anode electrodes without addition of binder and conductive additives. As a result, a high capacity of 313 mAh g−1 is obtained at a current density of 50 mA g−1 over 100 cycles.

Original languageEnglish
Pages (from-to)312-315
Number of pages4
JournalMaterials Letters
Volume236
DOIs
Publication statusPublished - 1 Feb 2019
Externally publishedYes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • Anode
  • Cobalt sulfide
  • Energy storage
  • Nanosheets
  • Sodium ion batteries

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