克服无机固态电池固态复合电极的离子传输限制
Jianneng Liang1,2, Meisam Hasanpoor3, Stefano Passerini3
1Karlsruhe Institute of Technology (KIT), P.O. Box 3640, 76021 Karlsruhe, Germany.
Chemical reviews
|January 21, 2026
概括
固态电池需要在复合电极中改进离子传输,以获得更高的能量密度. 优化离子电阻和活性物质扩散是提高性能和实现实际应用的关键.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 储能 储能 储能 储能 储能 储能
背景情况:
- 固态电池 (SSB) 与传统的离子电池相比,具有更高的能量密度和安全性的潜力.
- 然而,SSB中实现高能量密度受到固态电解质 (SSEs) 的限制的挑战,包括低离子导电率和与活性材料 (AM) 的差异性接口.
研究的目的:
- 本综述全面研究了SSE和SSB的复合电极中离子传输的基本机制.
- 它旨在确定克服挑战的策略,并使超高能量密度SSB的设计成为可能.
主要方法:
- 该综述综合了SSE和复合电极中离子传输机制的现有研究.
- 它讨论了测量离子和电子导电性和观察离子扩散动态的先进技术.
- 审查了SSE和复合电极中离子传输的基本机制.
主要成果:
- 降低内部离子电阻和活性物质扩散阻抗有效地提高了电流密度,并减少了SSB中的过电势.
- 讨论了改善AM内的离子扩散和增强高AM含量电极中的界面离子转移的策略.
- 优化离子传输对于提高SSB性能至关重要.
结论:
- 解决离子传输方面的挑战,如离子电阻和扩散阻抗,对于实现SSB的潜力至关重要.
- 开发有效的离子扩散和界面转移策略对于工业化高能量密度复合电极至关重要.
- 本综述提供了指导下一代SSB先进复合电极设计的见解.
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