Control of physical properties in transition-metal oxides by electrochemical doping
| Project/Area Number |
23684022
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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 |
Condensed matter physics II
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| Research Institution | University of Tsukuba |
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Principal Investigator |
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| Research Collaborator |
MORITOMO Yutaka 筑波大学, 数理物質系, 教授 (00283466)
SHIBATA Takayuki 筑波大学, 数理物質系, 研究員 (30758264)
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| Project Period (FY) |
2011-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥27,950,000 (Direct Cost: ¥21,500,000、Indirect Cost: ¥6,450,000)
Fiscal Year 2014: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2013: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
Fiscal Year 2012: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Fiscal Year 2011: ¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000)
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| Keywords | 強相関電子 / ナトリウムイオン電池 / 酸化物エレクトロニクス / ナノエレクトロニクス / 薄膜 / 超伝導 / イオン拡散 / 高速充放電 / リチウムイオン二次電池 |
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| Outline of Final Research Achievements |
We have developed novel materials by using electrochemical doping. We have found that NaxMO2 (M=Mn, Co) exhibits larger diffusion coefficient (D) than that of LiCoO2, which realizes a sodium-ion-secondary battery with high rate properties. A Li+ intercalation into Bi2Sr2CaCu2O8+d causes a clear enhancement of superconducting transition temperature from 75 K to 90 K. We have also invented thermo-electrochemical cell (thermocell) that converts heat into electrocity by electrochemical Seebeck effect.
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Report
(5 results)
Research Products
(36 results)
