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双金属层构建的界面微环境启用了用于金属电池的高度可逆的粉末阳极

Zhexuan Liu^1,2, Biao Fu¹, Xuefang Xie³

¹School of Materials Science and Engineering, Key Laboratory of Electronic Packaging and Advanced Functional Materials of Hunan Province, Central South University, Changsha, P. R. China.

Advanced materials (Deerfield Beach, Fla.)

|January 17, 2026

概括

一种新的双金属覆盖策略增强了水性金属电池 (AZMB) 的粉阳极. 这种方法改善了离子和电子传输,从而延长了电池寿命和稳定的性能.

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
储能储能储能储能储能储能

背景情况:

粉阳极中的不稳定接口阻碍了长寿命的水性金属电池 (AZMB).
现有的金属复合材料策略经常显示Zn2+扩散和电子转移之间的不匹配.

研究的目的:

开发用于粉阳极的双金属覆盖策略,以提高AZMB的性能.
为了解决阳极接口上的离子和电子传输不匹配的问题.

主要方法:

提出了一种具有特定移位序列的双金属层策略.
研究了Sn和Cu在补偿阳离子吸附和抑制副作用反应中的作用.
利用现场建造的SnO₂空隙来容纳Zn²⁺并促进扩散.

主要成果:

Zn@SC 阳极在 ZnRadioZn 细胞中显示了超过 2800 小时的循环稳定性.
在 1000 个循环后获得了 2 mAh cm^-2 的面积容量,在 Zn 二氧化碳基 NH₄V₄O₁₀ 细胞中,在 1000 个循环后保持 70%.
一个带有高质量加载阴极的囊细胞显示出令人满意的循环稳定性.

结论:

双金属覆盖策略有效匹配电子和离子运输行为.
优化界面微环境对于提高电化学性能至关重要.
这项工作为开发多金属粉阳极提供了有价值的方向.

关键词:

双金属涂层是双金属的复合粉末阳极是一种复合粉末阳极.接口微环境的介面金属移位序列的序列.金属电池金属电池电池

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