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Lei Guo^1,2,3, Lei Zhu^1,3, Yue Huang⁴

¹School of Material and Chemical Engineering, Tongren University, Tongren 554300, China. chygl@gztrc.edu.cn.

Physical chemistry chemical physics : PCCP

|March 25, 2024

概括

性气电池 (AAB) 面临着腐蚀问题. 添加NBLT,一种氨基酸衍生物,通过防止自我腐蚀,显著改善了Al阳极性能和能量密度.

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:

性空气电池 (AAB) 提供安全,经济高效的大规模储能.
阳极在水性电解质中的自我腐蚀阻碍了AAB的发展.

研究的目的:

为了研究氨基酸衍生物NBLT对AAB中的阳极的腐蚀抑制.
通过减轻阳极腐蚀来提高AAB的性能和稳定性.

主要方法:

将Nα-Boc-N1-formyl-L-酸盐 (NBLT) 纳入一个4M NaOH电解质.
腐蚀抑制效率和阳极性能指标的实验分析.
理论计算以阐明抑制腐蚀的机制.

主要成果:

NBLT作为阳极的有效腐蚀抑制剂,在1.5mM度 (73.9%抑制) 处具有最佳性能.
阳极利用率从31.8%增加到82.9%.
容量密度上升至2469.1 mA h g-1 ,能量密度达到3384.6 W h kg-1.

结论:

通过协调键,NBLT通过Al阳极表面形成一个保护性的自组装屏障.
这一策略有效地抑制了阳极-电解质反应,为先进的AAB铺平了道路.

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