Higher energy and safety of lithium-ion batteries with ionic liquid electrolyte

Shinichi Komaba, Naoaki Yabuuchi, Yasushi Katayama, Takashi Miura

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

6 Citations (Scopus)


Ionic liquid has been utilized as safe electrolyte solution for lithium-ion batteries. Reversible charge / discharge cycling of the graphite electrode in the ionic liquid has been achieved with polyacrylic acid polymer binder, which can suppress the organic cation intercalation to the graphite. Cycleability of the graphite-silicon composite electrodes prepared with polyacrylate binder was significantly improved in comparison to the conventional PVdF binder, and it has been demonstrated that the reversible cycling with 1000 mAh g-1 for 30 cycling test is possible in ionic liquid. The possibility of the safe and high-energy lithium-ion battery is discussed through the preliminary study on Li2MnO3-LiCo1/3Ni1/3Mn 1/3O2 based positive electrode and graphite-silicon- polyacrylate composite negative electrode with the ionic liquid electrolyte.

Original languageEnglish
Title of host publicationEnergy Harvesting and Storage
Subtitle of host publicationMaterials, Devices, and Applications
Publication statusPublished - 2010 Jun 25
EventEnergy Harvesting and Storage: Materials, Devices, and Applications - Orlando, FL, United States
Duration: 2010 Apr 52010 Apr 6

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherEnergy Harvesting and Storage: Materials, Devices, and Applications
Country/TerritoryUnited States
CityOrlando, FL


  • graphite
  • ionic liquid
  • lithium-ion battery
  • lithium-manganese oxide
  • silicon

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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