バッテリー・セルにアニオンを挿入するポラス・アザトルクセン・コバルント・オーガニック・フレームワーク
Sebastian M Pallasch1, Manik Bhosale2, Glen J Smales3
1Department of Chemistry & IRIS Adlershof, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, D-12489 Berlin, Germany.
Journal of the American Chemical Society
|June 13, 2024
まとめ
この研究は,高度な電池のための新しいp型共性有機フレームワーク (COF) を導入します. このアザトルクセンのCOFはリチウムとマグネシウムの両方のバッテリーで有望な性能を示しています.
科学分野:
- 材料科学
- 電気化学
- エネルギー貯蔵
背景:
- 配合性有機フレームワーク (COF) は,次の世代のバッテリーの重要な材料として登場しています.
- 充電貯蔵には限られた数のp型COFが報告されており,多価イオン電池はさらに少ない.
研究 の 目的:
- 新しいp型,多孔性,結晶性アザトラキセン基のCOFを合成し,特徴づけること.
- リチウム (Li) とマグネシウム (Mg) ベースの電池の陽性電極材料として合成されたCOFを評価する.
主な方法:
- 非常に多孔性で結晶性の高いアザトルクセンベースのCOFの合成
- COF/炭素ナノチューブ (CNT) 複合電極の製造
- Liベースの半電池とMgベースのバッテリー構成での電気化学試験.
主要な成果:
- Liベースの半電池のCOF/CNT電極は2°Cで70mAhg−1までの容量で3.9Vの放電電位を達成した.
- Mg電池では,COF電極の平均放電電圧は2. 9Vであった.
- マグネシウム電池のサイクル安定性は優れたもので,5°Cの速度でも1000サイクルにわたって84%の容量保持が認められた.
結論:
- 合成されたアザトルクセンベースのCOFは,高度なエネルギー貯蔵アプリケーションのための実行可能なp型電極材料です.
- この材料はリチウム電池と多価イオン電池,特にマグネシウム電池の両方で使用できる可能性があり,高電圧と安定性を提供します.
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