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热力学描述器引导的连接物选使得流电池中的无树脂沉积成为流电池中的无树脂沉积

Xusheng Cheng¹, Tao Xuan¹, Haoran Hu²

¹Institute of Refrigeration and Cryogenics, Key Laboratory of Power Machinery and Engineering of MOE, Shanghai Jiao Tong University, Shanghai 200240, China; Shanghai Non-Carbon Energy Conversion and Utilization Institute, Shanghai 200240, China.

Journal of colloid and interface science

|August 12, 2025

概括

研究人员开发了一种使用热力学描述器的新方法,用于寻找性电池的配体. 确定了酸 (NTA),使得稳定,无树的沉积和改善电池寿命.

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:

性电池面临的挑战是树突的生长和寄生反应,限制了它们的周期寿命.
均的沉积对于电池性能至关重要,但受到度极化阻碍.
需要合理的连接体设计来优化沉积形态和界面动力学.

研究的目的:

提出一种以热力学描述器为导向的策略,用于选配体.
确定一种可以优化沉积和电解质中的离子动态的化剂.
为了提高性基流电池的循环稳定性和性能.

主要方法:

使用金属-连接体稳定常数 (log K) 作为连接体选的热力学描述符.
使用现场显微镜和电化学分析来评估沉积和动力学.
在性条件下 (pH > 14) 测试了酸 (NTA) 作为潜在的化剂.

主要成果:

NTA表现出适度的协调强度,抑制进化并保持Zn2+溶解动力学.
在高电流密度 (80 mA cm-2) 和容量 (40 mAh cm-2) 的情况下,NTA指导了无树的沉积,优先增长Zn(002).
支持NTA的Zn//Zn对称电池周期稳定超过400小时,ZnFe流电池实现了700个周期,99%的库伦比效率.

结论:

建立了log K作为电池中多目标电解质优化的实用描述符.
确定NTA作为高性能性流电池的强大的化剂.
为开发先进的基于的储能系统提供了一个可扩展的途径.

关键词:

酸-铁流电池的性电池 - 铁流电池结合酶的结合素连接体.一致的 Zn 沉积物.面向的 Zn (002) 纹理稳定常量是指稳定常量.

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