Enhancement of Lithium Anode Cycleability in Lithium Imide Electrolytes by an Additive Controlling an Anode Interface

• ISHIKAWA Masashi

  Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering, Yamaguchi University

• MACHINO Shin-ichi

  Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering, Yamaguchi University

• MORITA Masayuki

  Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering, Yamaguchi University

Abstract

The addition of aluminum iodide (AlI₃) to binary electrolytes, propylene carbonate mixed with dimethyl carbonate (PC/DMC) or ethylene carbonate mixed with DMC (EC/DMC), containing lithium bis(perfluoroethylsulfonylimide) (LiBETI) improved the charge-discharge cycle efficiency of a Li metal anode; the enhanced efficiency in EC/DMC with LiBETI was about 95% even without the stacking pressure against the anode. In contrast, the AlI₃ addition reduced the efficiency in a PC/DMC electrolyte containing lithium hexafluorophosphate (LiPF₆). The AlI₃ additive in the LiBETI electrolytes provided a low-resistance Li interface without predominant anion-decomposition as well as dendritic or mossy Li deposition.

Journal

• Electrochemistry

  Electrochemistry 67 (12), 1200-1202, 1999-12-05

  The Electrochemical Society of Japan

Keywords

• Lithium Metal Anode
• Rechargeable Lithium Battery
• Additive
• Lithium Imide

Details

• CRID: 1390845702322827648
• NII Article ID: 10004275403
• NII Book ID: AN00151637
• DOI: 10.5796/electrochemistry.67.1200
• ISSN: 21862451
• ISSN: 13443542
• NDL BIB ID: 4927623
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4927623
• Web Site: https://www.jstage.jst.go.jp/article/electrochemistry/67/12/67_1200/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Allowed