| Budget Amount *help |
¥39,910,000 (Direct Cost: ¥30,700,000、Indirect Cost: ¥9,210,000)
Fiscal Year 2017: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
Fiscal Year 2016: ¥12,090,000 (Direct Cost: ¥9,300,000、Indirect Cost: ¥2,790,000)
Fiscal Year 2015: ¥18,850,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥4,350,000)
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| Outline of Final Research Achievements |
Several thyps of Al batteries have been fabricated using AlCl3-[C2mim]Cl as an ionic liquid electrolyte. Graphite fibers used as a positive electrode showed capacitive behavior, showing adsorption and desorption of anions on the positive electrode. However, when the graphite fibers on which graphene layers were deposited, electrochemical measurements revealed that insertion and elimination of anions in the graphene layers were accompanied with charge and discharge reactions, respectively. Based on such the results, an Al battery was fabricated using a graphene nanoplatelet and an Al foil as positive and negative electrodes, respectively. It was confirmed that only anions moved in its charge discharge procedures, indicating achievement of perfect utilization of the electrolyte in this Al battery.
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