Development of all-solid-state rechargeable battery using zeolite frame work as template

2021 Fiscal Year Final Research Report

• Project/Area Number: 20K20975
• Research Category: Grant-in-Aid for Challenging Research (Exploratory)
• Allocation Type: Multi-year Fund
• Review Section: Medium-sized Section 19:Fluid engineering, thermal engineering, and related fields
• Research Institution: Ehime University
• Principal Investigator: NOMURA SHINFUKU 愛媛大学, 理工学研究科(工学系), 教授 (20263957)
• Project Period (FY): 2020-07-30 – 2022-03-31
• Keywords: 二次電池 / 電池 / ゼオライト / 正極 / 負極 / 電解質 / フレームワーク / 液中プラズマ

Outline of Final Research Achievements

We focused on a microporous structure of zeolite and developed a positive electrode, a negative electrode for the rechargeable battery. Sodalite framework (SOD) zeolite is used as the material for the positive electrode instead of the conventional materials. As the negative electrode material, we tried to synthesize a carbon material having a three-dimensional structure and porosity of zeolite was synthesized in an organic solvent by -in-liquid plasma method. GIS framework was used as the electrolyte material. From a series of studies, it was found that the capacity of Si-Fe-based SOD zeolite was that can be calculated from the amount of charge per unit mass exceeds 406 Ah / kg for the Fe and 1000 Ah / kg for the Mn.

Free Research Field

熱工学

Academic Significance and Societal Importance of the Research Achievements

リチウムイオン二次電池を超える電池開発は、あらゆる産業分野の発展に寄与できる究極の研究課題である。本研究では、ゼオライト骨格構造（フレームワーク）の立体構造を有する二次電池の開発を行った。正極、電解質、負極をすべてゼオライトの結晶構造体で構成できると、現在のリチウムイオン電池の３～５倍の理論電池容量を持つ長寿命の電池が実現できる。