| Project/Area Number |
18H05249
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| Research Category |
Grant-in-Aid for Scientific Research (S)
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| Allocation Type | Single-year Grants |
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| Review Section |
Broad Section D
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
岡本 範彦 東北大学, 金属材料研究所, 准教授 (60505692)
河口 智也 東北大学, 金属材料研究所, 助教 (00768103)
谷村 洋 東北大学, 金属材料研究所, 助教 (70804087)
八木 俊介 東京大学, 生産技術研究所, 准教授 (60452273)
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| Project Period (FY) |
2018-06-11 – 2023-03-31
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| Project Status |
Completed (Fiscal Year 2022)
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| Budget Amount *help |
¥198,640,000 (Direct Cost: ¥152,800,000、Indirect Cost: ¥45,840,000)
Fiscal Year 2022: ¥13,780,000 (Direct Cost: ¥10,600,000、Indirect Cost: ¥3,180,000)
Fiscal Year 2021: ¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2020: ¥22,360,000 (Direct Cost: ¥17,200,000、Indirect Cost: ¥5,160,000)
Fiscal Year 2019: ¥46,020,000 (Direct Cost: ¥35,400,000、Indirect Cost: ¥10,620,000)
Fiscal Year 2018: ¥99,840,000 (Direct Cost: ¥76,800,000、Indirect Cost: ¥23,040,000)
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| Keywords | デュアルキャリア / 多価イオン / 蓄電池 / デントライト / デンドライト / 多価カチオン伝導 / 協奏効果 / デンドライトフリー / 合金負極蓄電池 |
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| Outline of Final Research Achievements |
While the physicochemical mechanisms of storage batteries using monovalent ions such as lithium and sodium are well understood, the basic science of storage battery systems using multivalent ions such as magnesium as carriers remains largely unexplored. In this study, we proposed the concept of a dual-ion battery system using both monovalent and multivalent ions, and clarified the concerted effects of promoting the diffusion of multivalent ions in the cathode material and controlling the deposition of monovalent alkaline elements in the metal anode.
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| Academic Significance and Societal Importance of the Research Achievements |
持続的なエネルギーシステムを実現するため，新規蓄電池技術の開発は不可欠である．本研究は，一価イオンと多価イオンの協奏的効果に着眼し，反応機構の解明から電極材料設計指針の確立，デバイスの構築まで，デュアルイオン蓄電池系に関わる学理基盤を築いた．本研究で得られた知見は，デュアルイオン蓄電池だけでなく，リチウムイオン蓄電池やマグネシウム蓄電池などを含む単一イオンをキャリアとする蓄電池系の材料開発にも適用でき，安全・安心かつ低コスト・高エネルギー密度を兼備した蓄電池技術の実現に貢献する．
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| Assessment Rating |
Ex-post Assessment Comments (Rating)
A: In light of the aim of introducing the research area into the research categories, expected outcomes of research have been produced.
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Assessment Rating |
Interim Assessment Comments (Rating)
A: In light of the aim of introducing the research area into the research categories, the expected progress has been made in research.
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