用于柔性铝-空气电池的抗冷冻和坚固的凝胶电解质

IF 2.4 4区化学 Q3 CHEMISTRY, PHYSICAL Ionics Pub Date : 2023-05-30 DOI:10.1007/s11581-023-05066-z

Haobo Zhang, Ying Yu, Yuxin Zuo, Chuncheng Zuo, Duanhao Lu, Zhangfeng Zhao

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引用次数: 0

摘要

摘要柔性铝空气电池在可穿戴设备和各种工程应用中具有广阔的应用前景。然而，柔性铝空气电池在严寒条件下的稳定运行仍然是一个巨大的挑战。解决这一问题的关键是开发具有高机械性能的抗冻电解质。为此，本研究制备了一种新型的柔性铝空气电池用PVA/BC-EG凝胶电解质。PVA/BC-EG电解质的抗结晶性和丰富的氢键使其具有抗冻性和高机械性能。在-20℃时，电解质的电导率和伸长率可达21.383 mS/cm，达到441.529%。用PVA/BC-EG电解质组装的柔性铝空气电池在零下条件下疲劳拉伸2000次后仍能保持优异的电化学特性。

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Freeze-resistant and robust gel electrolyte for flexible aluminum-air batteries

Abstract

Flexible aluminum-air batteries have great prospects in wearable devices and various engineering applications. However, it is still a huge challenge for flexible aluminum-air batteries to operate stable under severe cold conditions. The key to solving this problem is to develop freeze-resistant electrolytes with high mechanical performance. Therefore, a novel PVA/BC-EG gel electrolyte for flexible aluminum-air battery was prepared in this study. The crystallization resistance and abundant hydrogen bonds of the PVA/BC-EG electrolytes endow them with freeze-resistant and high mechanical performance. The conductivity and elongation of the electrolytes can reach 21.383 mS/cm and 441.529% even at -20 ℃. The flexible aluminum-air batteries assembled with the PVA/BC-EG electrolytes can still maintain excellent electrochemical characteristics after fatigue-stretching 2000 times under subzero conditions.

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来源期刊

Ionics 化学-电化学

CiteScore

5.30

自引率

7.10%

发文量

427

审稿时长

2.2 months

期刊介绍： Ionics is publishing original results in the fields of science and technology of ionic motion. This includes theoretical, experimental and practical work on electrolytes, electrode, ionic/electronic interfaces, ionic transport aspects of corrosion, galvanic cells, e.g. for thermodynamic and kinetic studies, batteries, fuel cells, sensors and electrochromics. Fast solid ionic conductors are presently providing new opportunities in view of several advantages, in addition to conventional liquid electrolytes.