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高速和低温稳定的金属电池由性3DCu-CuSn多孔框架实现

Wenbiao Li^1,2, Shumin Zheng¹, Yibo Gao¹

¹State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China.

|August 31, 2023

概括

研究人员开发了一个3D铜框架来稳定金属阳极,克服了高能电池的树石问题. 这项创新增强了核和离子传输,使得在各种温度下性能更好.

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:

(Li) 金属阳极是高能充电电池的理想选择,因为它们的容量大,潜力低.
金属阳极的实际应用受到树形成的阻碍,这损害了安全性和电池寿命.

研究的目的:

开发一种稳定,高性能的金属阳极.
为应对可充电电池中树增长的挑战.

主要方法:

使用蒸汽相解和Kirkendall效应制造一个性三维Cu-CuSn多孔框架 (3D Cu-CuSn).
通过化注入,将CuSn合金位点转换为LiSn合金位点,以创建复合Li金属阳极 (3D Cu-LiSn-Li).

主要成果:

3D Cu-LiSn-Li 阳极展示了改进的核和增强的离子迁移动力学.
合金锡作为一个关键的接口,桥梁铜基板和金属.
开发的阳极在室温下表现出高速率的性能,在低温下表现出稳定的循环.

结论:

性二元铜合金在稳定金属阳极方面是有效的.
这种方法提供了一种可行的策略,用于实现高性能和稳定的金属电池,用于苛刻的应用.

关键词:

3D 多孔框架金属阳极是一种金属阳极.高利率的高利率的高利率性合金Sn站点的性合金蒸汽相解化蒸汽相解化

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