Development of flexible energy-storage paper devices
| Project/Area Number |
15H05627
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Wood science
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| Research Institution | Osaka University |
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Principal Investigator |
Koga Hirotaka 大阪大学, 産業科学研究所, 特任助教(常勤) (30634539)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥23,920,000 (Direct Cost: ¥18,400,000、Indirect Cost: ¥5,520,000)
Fiscal Year 2017: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2016: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000)
Fiscal Year 2015: ¥12,610,000 (Direct Cost: ¥9,700,000、Indirect Cost: ¥2,910,000)
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| Keywords | ペーパーエレクトロニクス / 蓄電紙 / 機能紙 / 酸化グラフェン / 抄紙技術 / 光還元 / スーパーキャパシタ / ナノセルロース / パルプ / ナノカーボン / イオン液体 / 多孔質材料 / 蓄電デバイス / ナノ構造 / マイクロ構造 |
|---|
| Outline of Final Research Achievements |
Recent progress in portable and wearable electronics has promoted a growing demand for affordable and flexible energy-storage devices. Although reduced graphene oxide (rGO) serves as high performance electrode, rGO-based flexible electrodes remain challenging with respect to scalability and eco-friendliness concerning both the compositing process of rGO with a flexible matrix and the reduction process of GO.
In this study, we demonstrated that papermaking and successive in situ flash-reduction can be prospective to achieve this goal. Single-layer GO sheets were composited with wood-derived cellulose paper (even with waste paper) by a papermaking process with a filtration time of 4 s, followed by a room-temperature and chemical-free flash reduction process for 0.036 s. The rGO/paper electrodes showed high specific capacitance, up to 212 F/g, for a paper-based supercapacitor. This finding opens new doors for affordable and flexible energy-storage papers in future wearable electronics.
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Report
(4 results)
Research Products
(58 results)
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[Book] 機能紙最前線2017
Author(s)
古賀大尚、能木雅也(分担執筆)
Total Pages
350
Publisher
加工技術研究会
Related Report
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