Effects of Organic Additives on Lithium Insertion/extraction for Graphite Electrode in Ionic Liquid Electrolytes Based on Bis(fluorosulfonyl)imide

• SUGIMOTO Toshinori

  Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University Dai-ichi Kogyo Seiyaku Co., Ltd.

• ATSUMI Yosuke

  Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University

• HANDA Norihisa

  Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University

• YAMAGATA Masaki

  Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University

• KONO Michiyuki

  Dai-ichi Kogyo Seiyaku Co., Ltd.

• KIKUTA Manabu

  Dai-ichi Kogyo Seiyaku Co., Ltd.

• ISHIKO Eriko

  Dai-ichi Kogyo Seiyaku Co., Ltd.

• ISHIKAWA Masashi

  Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University

Abstract

The electrochemical behavior of a graphitized electrode was investigated in a room-temperature ionic liquid based on bis(fluorosulfonyl)imide (FSI⁻) with the addition of propylene carbonate (PC) or vinylene carbonate (VC). The reversible, significant lithium-ion (Li⁺) insertion/extraction was observed in the additive-free FSI-based ionic liquid, while the additive systems showed weak, reversible responses (VC) and degraded responses (PC). AC impedance measurements suggested that the presence of FSI⁻ extremely reduces the electrode/electrolyte interface impedance, which allows Li⁺ to intercalate into a graphitized electrode reversibly. By contrast, the addition of VC inhibits the reversible Li⁺ intercalation in spite of FSI⁻ existence.

Journal

• Electrochemistry

  Electrochemistry 77 (8), 696-698, 2009

  The Electrochemical Society of Japan

Keywords

• Lithium-ion Battery
• Ionic Liquid
• Bis(fluorosulfonyl)imide

Details

• CRID: 1390282681471740672
• NII Article ID: 130002150638
• DOI: 10.5796/electrochemistry.77.696
• COI: 1:CAS:528:DC%2BD1MXhtVSjsLfN
• ISSN: 21862451
• ISSN: 13443542
• Web Site: https://www.jstage.jst.go.jp/article/electrochemistry/77/8/77_8_696/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Allowed