Screen printed cathode for non-aqueous lithium-oxygen batteries

C. Y. Jung, T. S. Zhao, Liang An, L. Zeng, Z. H. Wei

Research output: Journal article publicationJournal articleAcademic researchpeer-review

13 Citations (Scopus)

Abstract

An issue with conventional non-aqueous Li-O2 battery cathodes that are formed by spraying/brushing/casting/coating carbon black slurries is a lack of sufficiently large pores, vulnerable to clogging by solid discharge products, and hence resulting in a low capacity. In this work, we report a novel cathode structure formed by screen-printing method. This deposition method allows the creation of evenly distributed large pores (∼10 μm). As compared with the cathode formed by slurry-coating method, the cathode formed by the present method increases the battery's capacity by two times. The cyclability is also seen a significant improvement. The improved performance may be attributed to large pores that give more appropriate distributions of discharge products and hence facilitate the transportation of oxygen during cycling.
Original languageEnglish
Pages (from-to)174-180
Number of pages7
JournalJournal of Power Sources
Volume297
DOIs
Publication statusPublished - 11 Aug 2015
Externally publishedYes

Keywords

  • Li-O<inf>2</inf> battery
  • Lithium peroxide
  • Non-aqueous electrolyte
  • Screen printing

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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