全国服务咨询热线:

13070167099

当前位置:首页 > 技术文章 > 通过富含氢键的甘油溶剂添加剂抑制水分活度来提高铝-空气电池的性能

通过富含氢键的甘油溶剂添加剂抑制水分活度来提高铝-空气电池的性能

更新时间:2024-01-30      点击次数:577

关于水分活度在改善铝空气电池性能方面的新应用的有趣文章。这些电池比锂离子电池效率高得多,但由于铝阳极的腐蚀,尚未被采用。用甘油降低水分活度可以抑制这个问题。


https://www.sciencedirect  dot com/science/article/abs/pii/S2405829722006699?via=ihub

Improving the performance of primary aluminum-air batteries through suppressing water activity by hydrogen bond-rich glycerol solvent additive

Thi Huong Pham

Abstract

In this work, glycerol is introduced as a low-cost and eco-friendly electrolyte additive for primary aluminum-air (Al-air) battery. Glycerol molecules form hydrogen bonds (H-bonds) with water (H2O) molecules to reconstruct hydrogen bond network in the electrolyte, leading to a reduction in the H2O activity. Accordingly, the hydrogen evolution potential of electrolyte is expanded, the hydrogen evolution reaction (HER) and self-corrosion of Al anodes are suppressed. As a result, the capacity density, and energy density of Al-air battery are increased significantly in the presence of glycerol. With the glycerol content of 20% in 4 M NaOH electrolyte, the capacity density of Al-air battery exhibits a value of 2564 mAh g 1, which is 2.3 times higher than in 4 M NaOH electrolyte.



美国METER Group, Inc公司北京办事处
地址:北京市亦庄经济技术开发区经海三路109号60-1201
邮箱:info@metergroup.cn
传真:010-65610081
关注我们
欢迎您关注我们的微信公众号了解更多信息:
欢迎您关注我们的微信公众号
了解更多信息