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在薄金属阳极上的离子交通控制器:调节沉积,优化和保护固体电解质相间

Mengli Tao¹, Guangyuan Du², Wenwu Zou¹

¹Guangdong Provincial Key Laboratory of Fuel Cell Technology, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China.

Journal of colloid and interface science

|February 29, 2024

概括

一种新型的涂层通过控制离子流量和优化固体电解质介相 (SEI) 来稳定薄金属阳极. 这提高了电池的寿命和性能,这对于下一代能源存储至关重要.

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:

薄金属阳极对于高能量密度电池至关重要.
电极-电解质相间不稳定性阻碍了金属阳极的性能和周期寿命.
开发稳定的接口是推动金属电池技术发展的关键.

研究的目的:

开发一种用于稳定薄金属阳极的保护涂层.
研究+交通控制器在调节沉积中的作用.
为了提高金属电池的稳定性和性能.

主要方法:

使用六甲基三甲基二三甲胺化物 ([CTA][TFSI]) 和聚乙烯二化物-合-六甲烯 (PVDF-HFP)) 的涂层制造.
涂层对Li+分布和固体电解质介相 (SEI) 形成的影响的描述.
在不同电流密度和循环下对称的电池和全电池的性能评估.

主要成果:

涂层层有效调节了Li+度,促进了均的沉积.
[CTA][TFSI]离子优化了SEI的无机丰富成分,增强了离子导电性.
对称的Li干细胞在1 mA cm-2.0下显示寿命为600小时.
具有超低N/P比率的全细胞在0.5C的200个周期和1C的90个周期中表现出稳定的循环.

结论:

开发的涂层层显著提高了薄金属阳极的稳定性和周期寿命.
这种方法为克服金属电池的接口挑战提供了一个有希望的策略.
Li+交通控制器和优化的SEI有助于提高电池性能和寿命.

关键词:

涂层层是一种涂层层.交通管制员是 () 交通管制员是 () 交通管制员是较低的N/P比率较低的N/P比率优化SEI组件的优化方法薄金属阳极是一种薄金属阳极.

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