Novel design concept of organic battery electrodes based on crystallography

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K14153
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Structural/Functional materials
• Research Institution: Tohoku University
• Principal Investigator: Honma Itaru 東北大学, 多元物質科学研究所, 教授 (90181560)
• Research Collaborator: KITADA Yuta 東北大学, 環境科学研究科 ; SAITO Hayate 東北大学, 環境科学研究科 ; HANZAWA Kazuki 東北大学, 環境科学研究科
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: 電池 / 有機活物質 / 結晶成長 / キャパシタ

Outline of Final Research Achievements

Organic materials has attracted much attention as the electrodes in low-cost, environmentally-friendly and high-energy-density batteries. In this study, we analyzed the crystal structural change in organic electrode, and revealed that the crystal growth of organic compound during charge-discharge cycling can become a dominant mechanism of battery degradation. To avoid the organic crystal growth, the control of interface between electrode and electrolyte was effective. Moreover, by applying the organic active materials to electrochemical flow capacitor, the capacitance enhancement was achieved.

Free Research Field

エネルギーデバイス化学