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工程人造突出Zn阳极用于水性电池

Jifei Sun^1,2, Xinhua Zheng², Zhengxin Zhu²

¹Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic University, Shenzhen, Guangdong 518000, China.

|April 21, 2025

概括

在电池电极上设计的人工突出物防止了树突的生长,提高了循环寿命. 这一策略确保了稳定的和剥离,以提高储能性能.

科学领域:

电化学电化学电化学
材料科学材料科学材料科学
储能储能储能储能储能储能

背景情况:

在水性电池中不受控制的树增长显著限制了其循环寿命和安全性.
开发稳定的沉积和剥离策略对于推进电池技术至关重要.

研究的目的:

引入一种新的策略,使用电极表面上的人工突出 (AP) 来调节电场,并促进稳定的涂/脱落.
调查AP在提高水性电池的性能和循环寿命方面的有效性.

主要方法:

在铜上制造一个无连接的AP-Cu网络,使用超快的朱尔加热接方法.
使用COMSOL模拟来分析AP周围的微电场分布及其对核化的影响.
基于AP-Cu的对称细胞和全细胞 (Zn下载AP-CuV2O5和无阳极AP-CuBr2) 的电化学测试.

主要成果:

AP-Cu网络有效调节微电场,诱导均的核化.
在3000个循环中,AP-CuZn电池在2°C下实现了99.85%的平均库伦比效率,面积容量为1.77 mAh cm−2.2.
稳定的循环性能被证明,在ZnidiyeAP-CuV2O5和无阳极AP-CuBr2全细胞中.

结论:

电极上的工程人造突出是稳定水性电池中涂/脱落的可行策略.
AP-Cu网络提高了电池的循环寿命和效率,为高性能储能设备铺平了道路.

关键词:

纳米线 Cu纳米线.焦力加热是使用焦力加热的.在 Zn 阳极上,有 Zn 阳极人工突出的人工突出没有树石的树石.这是一个大规模的储能储能系统.

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