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高速和高压离子电池氧化接口的原子层制造

Yipeng Sun¹, Jinjin Ma¹, Xiaozhang Yao²

¹Eastern Institute for Advanced Study, Ningbo Key Laboratory of All-Solid-State Battery, Zhejiang Key Laboratory of All-Solid-State Battery, Ningbo Institute of Digital Twin, Eastern Institute of Technology, Ningbo, Ningbo, 315200, P.R. China.

Angewandte Chemie (International ed. in English)

|January 14, 2026

概括

一种新的原子级制造方法创造了先进的基于的氧化 (LAOC) 涂层. 这些涂层通过提高离子导电性和稳定性来显著提高离子电池的性能.

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
固态化学固态化学

背景情况:

基于氧化的材料由于高离子导电性和阴极兼容性,显示出作为固态电解质 (SSEs) 的前景.
由于缺乏合适的制备方法,为正极制造精确的SSE涂层具有挑战性.

研究的目的:

开发一个原子级制造战略,用于合成优质的离子导电基氧化 (LAOC) 涂层.
为了证明LAOC涂层在氧化 (LCO) 阴极上的有效性,以提高电池性能.

主要方法:

利用原子级制造策略与自我限制反应机制合成LAOC涂层.
应用于氧化 (LCO) 阴极的LAOC涂层.
使用扫描传输X射线显微镜和传输电子显微镜对涂层LCO阴极进行了表征.

主要成果:

在5°C的500个循环后,LAOC修改的LCO阴极实现了86.4%的容量保留.
显著改善了高压循环稳定性.
增加了LCO的离子导电性,从1.785 × 10−7增加到2.823 × 10−6增加到S cm−1.
抑制了LCO的界面降解和减轻了结构崩.

结论:

原子级制造战略使得LAOC SSE涂层能够精确合成.
LAOC涂层增强了界面离子导电性,并形成了一个强大的阴极电解质介相.
这种方法为开发具有优质氧化薄膜的高性能离子电池提供了途径.

关键词:

阴极材料的材料是正极材料.阶段间工程的工程.离子电池是一种离子电池.氧化化物氧化化物同步子辐射的辐射.

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