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

Shinichi Komaba; Naoaki Yabuuchi; Yasushi Katayama; Takashi Miura

doi:10.1117/12.855629

29 April 2010 Higher energy and safety of lithium-ion batteries with ionic liquid electrolyte

Shinichi Komaba, Naoaki Yabuuchi, Yasushi Katayama, Takashi Miura

Proceedings Volume 7683, Energy Harvesting and Storage: Materials, Devices, and Applications; 76830F (2010) https://doi.org/10.1117/12.855629
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

Abstract

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-LiCo_1/3Ni_1/3Mn_1/3O₂ based positive electrode and graphite-silicon-polyacrylate composite negative electrode with the ionic liquid electrolyte.

Citation Download Citation

Shinichi Komaba, Naoaki Yabuuchi, Yasushi Katayama, and Takashi Miura "Higher energy and safety of lithium-ion batteries with ionic liquid electrolyte", Proc. SPIE 7683, Energy Harvesting and Storage: Materials, Devices, and Applications, 76830F (29 April 2010); https://doi.org/10.1117/12.855629

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