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Updated: Jan 23, 2026

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Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
Published on: August 12, 2013
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無機固体電池用固体複合電極のLi+イオン輸送限界の克服
Jianneng Liang1,2, Meisam Hasanpoor3, Stefano Passerini3
1Karlsruhe Institute of Technology (KIT), P.O. Box 3640, 76021 Karlsruhe, Germany.
Chemical reviews
|January 21, 2026
まとめ
全固体電池では、エネルギー密度を高めるために複合電極におけるイオン輸送の改善が必要である。イオン抵抗と活物質拡散の最適化が、性能向上と実用化の鍵となる。
科学分野:
- 材料科学
- 電気化学
- エネルギー貯蔵
背景:
- 全固体電池(SSB)は、従来のイオン液体電池と比較して、より高いエネルギー密度と安全性を実現する可能性がある。
- しかし、SSBで高エネルギー密度を達成するには、イオン伝導率の低さや活物質(AM)との界面の悪さなど、固体電解質(SSE)の限界が課題となっている。
研究 の 目的:
- 本レビューは、SSB用のSSEおよび複合電極におけるイオン輸送の基本メカニズムを包括的に検討する。
- 超高エネルギー密度SSBの実現に向けた課題克服戦略を特定することを目的とする。
主な方法:
- SSEおよび複合電極におけるイオン輸送メカニズムに関する既存の研究を統合する。
- イオン伝導率および電子伝導率の測定、イオン拡散ダイナミクスの観測のための高度な技術について論じる。
- SSEおよび複合電極におけるイオン輸送の基本メカニズムをレビューする。
主要な成果:
- イオン抵抗と活物質拡散インピーダンスを低減することで、SSBの電流密度を効果的に向上させ、過電圧を低減できる。
- 活物質内でのイオン拡散と、活物質含有量が高い電極での界面イオン移動を改善するための戦略について論じる。
- イオン輸送の最適化は、SSBの性能向上に不可欠である。
結論:
- イオン抵抗や拡散インピーダンスなどのイオン輸送における課題に対処することは、SSBの可能性を実現するために極めて重要である。
- 高エネルギー密度複合電極の工業化には、イオン拡散と界面移動の効果的な戦略の開発が不可欠である。
- 本レビューは、次世代SSB向けの高機能複合電極の設計を導くための洞察を提供する。
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