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Development of Layered Double Hydroxides with Electrochemical Anion Insertion-Extraction

Research Project

Project/Area Number 21K19015
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 36:Inorganic materials chemistry, energy-related chemistry, and related fields
Research InstitutionHokkaido University

Principal Investigator

TADANAGA Kiyoharu  北海道大学, 工学研究院, 教授 (90244657)

Project Period (FY) 2021-07-09 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2022: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2021: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Keywordsアニオン電池 / 層状複水酸化物 / アニオン交換型電池
Outline of Research at the Start

安全性にすぐれた新規蓄電池システムとして、アニオン交換型の電極材料を用いた電池系が注目されている。その中で、水系電解液中で陰イオンが挿入脱離可能な材料の開発が望まれている。本研究では、インターカレーション型のアニオン挿入脱離可能な電極材料として遷移金属含有層状複水酸化物(LDH)を新たに提案し、水系電解液において塩化物イオンなどの陰イオンの電気化学的挿入脱離を可能とすることを目指す。

Outline of Final Research Achievements

Battery systems using anion-exchange type electrode materials are attracting attention as novel storage battery systems. In this study, transition metal-containing layered double hydroxides (LDHs) were investigated as an intercalation-type chloride ion insertion/desorption electrode material. LDHs are basically composed of divalent and trivalent metal hydroxide layers, interlayer anions and interlayer water. The interlayer anions are expected to be inserted and extracted by the electrochemical valence change of the transition metal. Therefore, various transition metal-containing LDHs were prepared, and their electrochemical insertion/extraction behavior was studied.
It was found that Co-Al-based LDHs are capable of electrochemical insertion/extraction of anions in aqueous and organic electrolyte systems.

Academic Significance and Societal Importance of the Research Achievements

層状複水酸化物は、多くのエネルギーを必要としない共沈法で合成可能である。遷移金属含有LDHが、アニオン交換型の電極材料として用いることが可能であることを明らかにした本研究は、今後のアニオン型電池の研究の進展に大きく貢献することができると考えられる。また、これを機に、アニオン交換型電池の研究がさらに進展すれば、新規蓄電池システムとして大きく発展する可能性があり、その社会的意義は大きいと考えられる。

Report

(3 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • Research Products

    (3 results)

All 2022

All Presentation (3 results) (of which Int'l Joint Research: 1 results)

  • [Presentation] Co-Al系層状複水酸化物における電気化学的酸化還元挙動とアニオン電池電極材料への応用2022

    • Author(s)
      佐藤大紀・ナタリーカロリ―ナロゼロナバロ・三浦 章・忠永清治
    • Organizer
      日本化学会北海道支部2022年夏季研究発表会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Electrochemical redox behavior of sol-gel derived Co-Al layered double hydroxide thin films2022

    • Author(s)
      Kiyoharu TADANAGA, Daiki SATO, Takuto TOIDE, Nataly Carolina ROSERO-NAVARRO, Akira MIURA
    • Organizer
      XXI International Sol-Gel Conference (Sol-Gel 2022),
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Co-Al系層状複水酸化物の電気化学的酸化還元挙動2022

    • Author(s)
      佐藤大紀、N.C. Rosero Navarro、三浦 章、忠永 清治
    • Organizer
      化学系学協会北海道支部2022年冬季研究発表会
    • Related Report
      2021 Research-status Report

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Published: 2021-07-13   Modified: 2024-01-30  

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