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通过预溶解和通过离子电池的聚胺接口通过加速电荷转移来提高电极的稳定性

Chi-Yu Lai¹, Yin-Song Liao², Hao-Yu Ku¹

¹Department of Chemical Engineering, National Tsing Hua University, Hsinchu, 300044, Taiwan.

Small (Weinheim an der Bergstrasse, Germany)

|May 1, 2024

概括

在电极上引入聚胺 (PI) 纳米织物层,可以防止在水性基电池中发生树的生长和副作用. 这一创新提高了稳定性和性能,为更安全,更具成本效益的能源存储解决方案提供了更好的解决方案.

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:

水性基电池提供了安全性和成本优势,但受到树生长和副作用的影响.
这些问题限制了电极的实际应用和长期稳定性.

研究的目的:

为了减轻树突的生长和电极在水性能量储存设备的副作用.
为了提高金属电极的循环稳定性和性能.

主要方法:

在基板上引入聚胺 (PI) 纳米织物接口层.
计算模拟以了解离子溶解和电荷转移机制.
制造和测试PI-Zn对称电池,并将其集成到完整的电池中 (混合离子电容和离子电池).

主要成果:

该PI纳米织物层促进离子预溶解,减少沉积激活能量和加速电荷转移.
PI-Zn对称细胞表现出超过1200小时的稳定循环,具有无树形态和最小的副产品.
由于PI纳米织物的3D多孔结构,在高电流密度下观察到高稳定性和低压歇斯底里.
完整电池实现了令人印象深刻的寿命:15000个循环的PI-Zn Led Led Led AC混合电容和600个循环的PI-Zn Led Led Led LedMnVOH@SWCNT电池具有出色的容量保留.

结论:

PI纳米织物接口层有效地抑制了电极中的树突形成和副作用反应.
这一策略显著提高了基于水性的储能器件的循环稳定性和速度能力.
开发的PI-修改电极为高性能和安全的金属电池和电容器提供了一个有希望的途径.

关键词:

转移费用转移费用转移费用转移费用压制树,抑制树.溶解解脱的过程中,聚胺纳米织物的纳米织物保护层是一种保护层.基于的储能储能系统.

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