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2021 Fiscal Year Final Research Report

Creation of Innovative Electrochemical Capacitors Using Anion Exchange Membrane as Polymer Electrolyte for Use in Fuel Cells

Research Project

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Project/Area Number 19K05596
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 35020:Polymer materials-related
Research InstitutionUniversity of Yamanashi

Principal Investigator

Nohara Shinji  山梨大学, 大学院総合研究部, 教授 (40326278)

Co-Investigator(Kenkyū-buntansha) 宮武 健治  山梨大学, 大学院総合研究部, 教授 (50277761)
Project Period (FY) 2019-04-01 – 2022-03-31
Keywords電気化学キャパシタ / アニオン導電性高分子電解質膜 / 電気二重層キャパシタ / 活性炭電極 / マンガン酸化物電極
Outline of Final Research Achievements

In order to create innovative electrochemical capacitors using anion exchange membrane as polymer electrolyte for use in fuel cells, we investigated effects of the membrane thickness and interface structure with activated carbon electrodes on electrochemical properties of the electric double layer capacitor (EDLC) cell. By optimizing thickness of electrolyte membrane and electrode/electrolyte interface structure, we succeeded in constructing an excellent EDLC cell with better rate-capability and lower cell resistance, compared with a cell using KOH solution. Furthermore, it was clarified that the electrolyte membrane had a good adaptability to a 2.5 V-class asymmetric capacitor composed of activated carbon and manganese-nickel oxide solid solution electrodes.

Free Research Field

電気化学

Academic Significance and Societal Importance of the Research Achievements

本研究成果は、電気化学キャパシタの全固体化あるいは擬固体化といった研究分野の発展に寄与するだけでなく、燃料電池および電気化学キャパシタ(スーパーキャパシタ)の両分野において電解質や電極材料の選択肢が増え、これらの研究分野の発展を加速させることができる。このことは、将来のカーボンミュートラル社会の実現に向け、蓄電デバイスの高性能化、多様化にもつながり、その点で非常に大きな社会的意義を有している。

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Published: 2023-01-30  

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