精确定义的单晶分层氧化物阴极用于高性能全固态电池
Ruqin Ma1, Siyuan Pan1, Hanyan Wu1
1State Key Laboratory for Physical Chemistry of Solid Surface, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
Chemical reviews
|November 7, 2025
概括
单晶阴极为高能全固态电池提供了卓越的稳定性. 它们的无粒边界设计提高了性能,并为未来的电池开发提供了洞察力.
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
- 电池技术 电池技术
背景情况:
- 高能量密度全固态电池 (ASSLB) 需要坚固的正极材料.
- 单晶 (SC) 层氧化物由于其无粒边界架构,比多晶 (PC) 产品具有更好的结构和界面稳定性.
研究的目的:
- 审查SC阴极的性能,并将其与ASSLBs的PC阴极进行比较.
- 阐明微观结构差异如何影响ASSLB的表现.
- 总结了SC阴极设计和表征方面的进展.
主要方法:
- 系统检查SC阴极中的异性运输.
- 分析机械反应和界面行为.
- 对 SC 和 PC 阴极性能进行比较.
- 对材料优化,接口工程和电极架构的审查.
- 降解研究的表征和建模工具的概述.
主要成果:
- SC阴极表现出增强的结构和界面稳定性.
- SC阴极是研究面依赖运输和降解的理想模型.
- SC和PC阴极之间的微结构差异显著影响ASSLB性能.
结论:
- SC阴极为下一代高能量密度ASSLB提供了一个有希望的途径.
- 对材料优化和接口工程的进一步研究对于实际部署至关重要.
- 了解降解机制和合效应是推进SC阴极技术的关键.
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