聚氧乙烯麻油在动态静态腐蚀抑制和循环稳定性之间作为空气电池添加剂的非线性相关性
Hongyu Cen1, Shuaige Hu1, Chonggang Wu1
1Hubei Provincial Key Laboratory of Green Materials for Light Industry and School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan, Hubei 430068, China.
Langmuir : the ACS journal of surfaces and colloids
|December 18, 2025
概括
聚氧乙烯麻油 (Cremophor EL) 添加剂通过抑制阳极腐蚀和树成长,显著提高了空气电池 (ZAB) 的性能. 这通过动态接口重建来提高电池寿命和稳定性.
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:
- 空气电池 (ZAB) 面临着巨大的挑战,因为阳极降解,包括自我腐蚀和树突形成.
- 这些降解问题严重限制了ZAB的循环寿命和运行稳定性.
研究的目的:
- 研究聚氧乙烯麻油 (Cremophor EL) 衍生物作为ZAB中的电解质添加剂的有效性.
- 为了应对阳极的静态腐蚀和动态树生长的双重挑战.
主要方法:
- 合成了四种类型的Cremophor EL并添加到ZAB电解质中.
- 进行了静电腐蚀试验和静电电荷-放电循环.
- 使用接口分析技术来阐明作用机制.
主要成果:
- 所有四种EL添加剂都显示出超过90%的静态腐蚀抑制效率.
- EL-90将稳定的ZAB运行延长到大约400小时,比空白系统 (<60小时) 显著改善.
- 埃尔添加剂促进了动态接口重建和优化离子运输,抑制了树的生长.
结论:
- 克雷莫EL衍生物为缓解ZAB中阳极降解提供了一个有希望的策略.
- 添加剂通过一个协同作用的机制起作用,包括物理屏障形成和定向离子运输通道.
- 这项研究通过动态接口重建为持久ZABs提供了一个新的设计范式.
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