Capacity revival of tungsten trioxide anode material in lithium-ion battery

Rajesh Pathak, Ke Chen, Behzad Bahrami, Tawabur Rahman, Huitian Lu, Yue Zhou, Qiquan Qiao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Transitional Metal Oxides (TMOs) has been considered as one of the promising candidates for anode materials in Lithium-ion batteries (LIBs) due to their high theoretical capacities. However, low electronic conductivity, volume expansion during discharge/charge cycles and poor rate capability challenges its further use in LIBs. In this work, unique behavior of self-revival in the capacity with cycling is presented. Self-revival in the capacity was attained by doping pristine tungsten trioxide (WO3) with nitrogen at high temperature. The percentage increase of self-revived discharge capacity corresponding to the preceding discharge capacity at cycles, 9th (412.85 Vs 370.95 mAhg-1), 13th (405.24 Vs 390.95 mAhg-1) and 36th (552.38 Vs 138.57 mAhg-1) cycles were 11.29%, 3.65% and 298.63%, respectively. This interesting phenomenon of self-capacity revival can be attributed to the reduction in the particle size of WO3 that leads to high surface area. In addition, the created oxygen vacancies and defects make the reduced WO3 electrochemically active and enhance the catalytic activity.

Original languageEnglish (US)
Title of host publication2019 IEEE International Conference on Electro Information Technology, EIT 2019
PublisherIEEE Computer Society
Pages469-473
Number of pages5
ISBN (Electronic)9781728109275
DOIs
StatePublished - May 2019
Externally publishedYes
Event2019 IEEE International Conference on Electro Information Technology, EIT 2019 - Brookings, United States
Duration: May 20 2019May 22 2019

Publication series

NameIEEE International Conference on Electro Information Technology
Volume2019-May
ISSN (Print)2154-0357
ISSN (Electronic)2154-0373

Conference

Conference2019 IEEE International Conference on Electro Information Technology, EIT 2019
CountryUnited States
CityBrookings
Period5/20/195/22/19

Keywords

  • Anode
  • Li-ion battery
  • Self-revive of Capacity
  • WO3

ASJC Scopus subject areas

  • Computer Science Applications
  • Information Systems
  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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