六角多孔合金接口用于超稳定的金属阳极
Keyu Zhu1,2, Zuomin Lei1,2, Mengliang Hu1,2
1School of Materials, Sun Yat-sen University, Shenzhen 518107, P. R. China.
ACS applied materials & interfaces
|February 9, 2026
概括
一种由多孔的-锡合金层 (SC@ZnSn) 保护的新型阳极显著提高了电池循环稳定性. 这种设计的阳极抑制了树突的生长,并提高了先进的能量存储的长期可逆性.
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:
- 金属阳极 (ZMA) 面临着树突生长和进化等挑战,限制了电池循环稳定性.
- 均的电场分布和耐腐蚀性对于高效的ZMA性能至关重要.
研究的目的:
- 开发一种具有增强循环稳定性和耐腐蚀性的受保护阳极.
- 为了研究在修改后的阳极中抑制树和改善离子流的机制.
主要方法:
- 通过电化学蚀刻和元素替代 (SC@ZnSn) 在阳极上制造六角多孔-锡 (ZnSn) 合金层.
- 电化学表征,包括在不对称细胞中的循环稳定性测试和全细胞性能评估 (SC@ZnSn菩萨I2).
主要成果:
- 该SC@ZnSn阳极实现了显著的循环稳定性,在1800个循环中平均99.6%的库伦比克效率.
- 六角多孔结构和ZnSn合金表面促进了均的Zn2+流量,降低了核化障碍,抑制了树突的生长.
- 该SC@ZnSn下载者下载I2全电池在1Ag-1时表现出超过4000个周期的稳定运行,保持高容量.
结论:
- SC@ZnSn阳极为实现高性能和耐用基电池提供了一个有希望的策略.
- 多孔框架和性合金的协同效应是抑制树突和确保长期可逆性的关键.
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