Li+イオンインターケレーションによる高容量擬電容器
Harish Banda1, Jin-Hu Dou1, Tianyang Chen1
1Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02138, United States.
Journal of the American Chemical Society
|February 2, 2021
まとめ
研究者らは,電気化学コンデンサ (EC) 用の新型無孔調整ポリマー (CP) を開発した. この材料は高い電気伝導性と 擬似容量イオンインターキャラ性を示し エネルギー貯蔵性能を高めています
科学分野:
- 材料科学
- 電気化学
- エネルギー貯蔵
背景:
- 電気化学電容器 (EC) は高電力密度を提供しているが,低エネルギー密度によって制限されている.
- 高い特異表面積と電気伝導性は,EC性能にとって極めて重要です.
- コーディネーションポリマー (CP) のような高電気伝導性を有する無孔材料は,ECアプリケーションではしばしば見過ごされます.
研究 の 目的:
- 電気化学コンデンサ (EC) の電極材料としての無孔調整ポリマー (CP) の可能性を調査する.
- エネルギー貯蔵の強化のための新型無孔CPであるNi3 (ベンゼネキサチオラート) (Ni3BHT) を探求する.
- Ni3BHTにおける高性能シドコンデンサーの電荷貯蔵メカニズムを解明する.
主な方法:
- 新しい無孔の調整ポリマーであるNi3 (ベンゼネヘキサチオラート) (Ni3BHT) の合成と特徴付け.
- 非水性電解質における電極材料としてのNi3BHTの電気化学試験
- 充電貯蔵機構の構造と電気化学の研究
主要な成果:
- Ni3BHTは高い電気伝導性 (>500 S/m) を表しています.
- 電極の性能は245F/gと426F/cm3の優れた比容量を示しています.
- 優良な性能は,Ni3BHTの2D層間のLi+イオンの偽容量インターキャレーションに起因する.
結論:
- 非毛細な調整ポリマー (CP) で初めて偽容量イオンインターキャレーションが実証された.
- Ni3BHTは,高エネルギーシドコンデンサーの重要な可能性を示しています.
- 先進的な電気化学的エネルギー貯蔵のための無孔CPの探索の広大な可能性を強調しています.
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