NASICON Li1.5Al0.5Ge1.5(PO4)3の固体電解質とピル13TFSIイオン液体の間のカチオン交換反応を明らかにする
Andrea Paolella1, Giovanni Bertoni2, Wen Zhu1
1Hydro-Québec, Center of Excellence in Transportation Electrification and Energy Storage, 1806 Boulevard Lionel Boulet, Varennes, Québec J0L 1N0, Canada.
Journal of the American Chemical Society
|February 16, 2022
まとめ
NASICON LAGPのセラミックと pyr13TFSIのイオン液体の反応を調べました リチウムイオン交換によりリチウムイオン塩が形成され,両方の材料はイオンブリッジを通じてリチウムイオン拡散を促進した.
科学分野:
- 材料科学
- 電気化学
- 固体化学
背景:
- セラミックイオン液体の複合材料は,アプリケーションの関心を得ています.
- 接面反応を理解することは 複合材料の開発に不可欠です
研究 の 目的:
- NASICON LAGPのセラミックと pyr13TFSIのイオン液体の間の化学反応を調査する.
- インターフェイスの行動とイオン拡散メカニズムを特徴付けます.
主な方法:
- 核磁気共振 (NMR) スペクトロスコーピーは,反応製品を検出する.
- リチウムイオン拡散を研究するために6Liフォイルを使用した実験.
主要な成果:
- LAGPの表面にカチオン交換反応 (pyr13-Li) が確認され,LiTFSI塩が形成された.
- LAGPとLiTFSI:pyr13TFSIの混合物は,リチウムイオン拡散に寄与することを実証した.
- 種間のイオン輸送を促進するイオンブリッジの形成を観察した.
結論:
- NASICON LAGPのセラミックとpyr13TFSIのイオン液体は,インターフェイス反応を起こします.
- 強化されたリチウムイオン輸送のためのLAGPとLiTFSI:pyr13TFSIの間のシナージ効果が存在する.
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