Development of Fuel Cell/Battery System for High-Power Generation and High-Capacity Energy Storage by Using Three-Dimensional Electrode Structures
| Project/Area Number |
23360434
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Energy engineering
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| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥18,460,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥4,260,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Fiscal Year 2011: ¥9,880,000 (Direct Cost: ¥7,600,000、Indirect Cost: ¥2,280,000)
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| Keywords | エネルギー生成・変換 / 燃料電池 / 二次電池 / Fuel Cell /Battery / 燃料電池・電池 / Fuel Cell/Battery / エネルギースパークリング / 三次元電極 |
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| Research Abstract |
Fuel cell/battery (FCB) systems are promising power generation/energy storage systems because of their bi-functionality as fuel cells and as secondary batteries. From the current research, it was found that MnOOH formed via the electrochemical discharge of manganese dioxide (MnO2) and that the oxyhydroxide can be chemically transformed back to MnO2 with gaseous oxygen (O2). The recharged MnO2 can be used as the cathode in a fuel cell with an O2 supply and it can also be electrochemically discharged without an O2 supply. This study suggest that the FCB system can be constructed using MnO2 as the cathode and a metal hydride as the anode, which can be rapidly charged to more than 70% of the theoretical capacity within 10 min using pressurized H2 and electrochemically discharged. Furthermore, a novel fibrous MnO2 electrode for FCB system was fabricated on carbon fiber by the electrodeposition method in order to improve contact area between MnO2 and the electrical conducting material.
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Report
(4 results)
Research Products
(21 results)
