Highly Reversible Zinc-Air Batteries at-40 °C Enabled by Anion-Mediated Biomimetic Fat

被引：59

作者：

Deng, Danni ^{[1
]}

Wu, Jiao ^{[1
]}

Feng, Qingguo ^{[2
]}

Zhao, Xin ^{[1
]}

Liu, Mengjie ^{[1
]}

Bai, Yu ^{[1
]}

Wang, Jinxian ^{[1
]}

Zheng, Xinran ^{[1
]}

Jiang, Jiabi ^{[1
]}

Zhuang, Zechao ^{[3
]}

Xiong, Xiang ^{[1
]}

Wang, Dingsheng ^{[3
]}

Lei, Yongpeng ^{[1
]}

机构：

[1] Cent South Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China

[2] Southwest Jiaotong Univ, Key Lab Adv Technol Mat, Minist Educ, Chengdu 610031, Peoples R China

[3] Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China

来源：

ADVANCED FUNCTIONAL MATERIALS | 2024年 / 34卷 / 02期

基金：

中国国家自然科学基金;

关键词：

anion-H2O interaction; biomimetic fat; cyclability; high current density; solid-state zinc-air batteries;

D O I：

10.1002/adfm.202308762

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The wide application of portable electrical equipment, aerial vehicles, smart robotics, etc. has boosted the development of advanced batteries with safety, high energy density, and environmental adaptability. Inspired by the fat layer on animal bodies, biomimetic fat is constructed as electrolytes of solid-state zinc-air batteries to achieve excellent cycling performance at low temperatures. Via tailored anion-H2O interaction, the antifreezing gel electrolytes, with the multi-performance of interface compatibility, temperature adaptability, and stable power supply simultaneously, build robust Zn|electrolyte interface, thus promoting uniform interfacial electric fields and Zn deposition. Excellent long-term cyclability of 120 h at a high current density of 50 mAcm(-2) are exhibited at 25 degrees C. Moreover, at -40 degrees C, a record-long cycling life of 205 h at a current density as large as 10 mA cm(-2) is achieved.

引用

页数：9

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