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有机/无机复合材料保护层对大面积和金属阳极的离子层化生长

Di Yang^1,2, Xiaoyu Wu¹, Li He¹

¹Key Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), College of Physics, Jilin University, Changchun 130012, China.

|November 17, 2023

概括

一个新的ZnO-油酸保护层通过防止树的生长来增强和金属电池. 这项创新显著改善了下一代储能解决方案的循环寿命和稳定性.

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:

(Li) 和 (Zn) 金属电池是离子电池的有希望的替代品.
循环期间的树增长严重限制了和金属电池的性能和安全性.

研究的目的:

开发一种保护层,以抑制和金属阳极中的树突形成.
提高和金属电池的循环寿命和安全性.

主要方法:

制造一个纳米薄的ZnO-油酸 (ZnO-OA) 复合保护层使用离子层的Epitaxy.
对ZnO-OA保护的和金属阳极进行电化学测试.
组装和循环的和FePO4和和MnO2完整的细胞.

主要成果:

ZnO-OA 层表现出强烈的石化和性特性,促进均的离子沉积.
保护ZnO-OA的Li和Zn阳极表现出稳定的循环,分别超过600小时和1000小时,在10mA cm-2.2下.
在1°C的600个循环后,LiFePO4电池保持了99.5%的容量保留,而Zn的LiFeMnO2电池在1A g-1.1的1000个循环后稳定运行.

结论:

开发出的ZnO-OA保护层有效地减轻了和Zn金属阳极中的树生长.
这种保护层显著提高了下一代金属电池的长期稳定性和性能.
-OA复合物为推进安全和持久的储能系统提供了一个可行的策略.

关键词:

阳极保护保护阳极保护离子层的表皮细胞生长增长.金属电池的电池是金属的电池.金属电池的电池是金属的

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