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可充电空气电池的泡演变:机制,缓解策略和未来前景

Jiangfeng Huang¹, Zhongxi Zhao¹, Jianwen Yu¹

¹Department of Thermal Science and Energy Engineering, University of Science and Technology of China (USTC), Hefei, Anhui, 230026, China.

Chemistry, an Asian journal

|February 24, 2025

概括

可充电的空气电池面临气体演变带来的性能问题. 本研究审查了泡形成机制和缓解策略,以提高电池效率和寿命.

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:

可充电的空气电池 (ZAB) 提供高能量密度和低成本,使它们对便携式电子产品和电动汽车具有吸引力.
对ZAB商业化的一个重大挑战是电极上的气体演变 (演变反应和氧演变反应).
气泡通过减少活性表面积和增加内部阻力来阻碍电池性能.

研究的目的:

总结ZAB中的气体演变机制.
探索减轻气泡形成和抑制气体演变反应的策略.
概述未来的研究方向,以提高ZAB的绩效.

主要方法:

在ZAB中对气体演变机制的文献综述.
分析策略,包括电极材料优化,脉冲充电和结构设计.
讨论抑制气体演变反应的方法.

主要成果:

气体的演变,主要是HER和OER,导致电极上的气泡形成.
气泡减少了活性表面积,增加了内部阻力,并破坏了反应的均性.
各种策略可以减轻气泡的形成,抑制气体的演变.

结论:

了解气体进化机制对于ZAB的发展至关重要.
优化电极材料,脉冲策略和电池设计可以减少气泡问题.
需要对抑制气体演变进行进一步的研究,以提高ZAB的性能和商业可行性.

关键词:

空气阴极是一个空气阴极.水性电池是一种水性电池.泡进化的演变.在 Zn 阳极上,有 Zn 阳极

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