| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Outline of Final Research Achievements |
Graphite fluoride is a graphite intercalation compounds and used as lubricate and cathode material of primary battery. The graphite fluoride-lithium primary (GF-Li) battery has been commercially used because of its high energy density, excellent discharge performance, and low self-discharge property.
The research representative found that the discharged GF-Li battery can be re-charged as new hybrid electrochemical capacitor (Graphite-fluoride Lithium Capacitor: GF-Li Cap.) In this project, the research representative succeeds in realizing the GF-Li Cap. with about 40 Wh L-1 volumetric energy density (normalized by the volume of negative and positive electrodes) and more than 1000 charge-discharge cycle-ability. Additionally, it has been revealed that the positive electrode (discharged graphite-fluoride electrode of GF-Li battery) is charge-discharged as capacitor electrode mainly by electrochemical desorption/adsorption of Li+ cation.
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