Higher energy and safety of lithium-ion batteries with ionic liquid electrolyte
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説明
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 Li 2 MnO 3 -LiCo 1/3 Ni 1/3 Mn 1/3 O 2 based positive electrode and graphite-silicon-polyacrylate composite negative electrode with the ionic liquid electrolyte.
収録刊行物
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- SPIE Proceedings
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SPIE Proceedings 7683 76830F-, 2010-04-23
SPIE