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在固态金属电池中实现≥99.9%的涂/剥离库伦比效率,通过常态接口接触向零体积变化主机设计

Lequan Deng¹, Zhaofen Wang¹, Haoying Qi¹

¹State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, People's Republic of China.

|March 2, 2026

概括

固态金属电池克服了与新的细胞空虚主机的体积变化问题. 这项创新使稳定沉积和剥离,显著改善电池循环和效率.

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:

固态金属电池 (SSLMB) 在循环过程中面临着阳极体积波动的挑战.
没有阳极的SSLMB特别容易受到接口退化的影响,限制了可逆性和性能.

研究的目的:

开发一种新的阳极结构,以减轻涂和剥离过程中的体积变化.
提高SSLMB的循环稳定性和库伦比效率.

主要方法:

为阳极制造零体积变化的细胞空虚结构主体.
操作压力和显微镜表征以观察接口行为.
使用新型主机架构测试无阳极SSLMB.

主要成果:

细胞空隙宿主使在空隙内沉积/溶解,消除体积波动.
创纪录的库伦比克效率 (≥99.9%) 实现,超过了之前的基准.
没有阳极的SSLMB在400个循环中在低堆压力下显示了95.5%的容量保留.

结论:

零体积变更主机架构有效地解决了SSLMB中的接口分层失败.
这种设计策略为建造高度稳定的固态金属电池提供了途径.
该研究在克服SSLMB商业化关键限制方面取得了重大进展.

关键词:

没有阳极的金属电池.固态接口接触接口接触固态金属电池固态金属电池零体积变换主机的主机.

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