典型文献
Cooperative Chloride Hydrogel Electrolytes Enabling Ultralow-Temperature Aqueous Zinc Ion Batteries by the Hofmeister Effect
文献摘要：
Aqueous zinc ion batteries have high potential applicability for energy storage due to their reliable safety,environmental friendliness,and low cost.However,the freezing of aqueous electrolytes limits the normal operation of batteries at low tem-peratures.Herein,a series of high-performance and low-cost chloride hydrogel electrolytes with high concentrations and low freezing points are developed.The electrochemical windows of the chloride hydro-gel electrolytes are enlarged by＞1 V under cryogenic conditions due to the obvious evolution of hydrogen bonds,which highly facilitates the operation of elec-trolytes at ultralow temperatures,as evidenced by the low-temperature Raman spectroscopy and linear scanning voltammetry.Based on the Hofmeister effect,the hydrogen-bond network of the cooperative chloride hydrogel electrolyte comprising 3 M ZnCl2 and 6 M LiCl can be strongly interrupted,thus exhibiting a sufficient ionic conductivity of 1.14 mS cm-1 and a low activation energy of 0.21 eV at-50℃.This superior electrolyte endows a polyaniline/Zn battery with a remarkable discharge specific capacity of 96.5 mAh g-1 at-50℃,while the capacity retention remains～100％after 2000 cycles.These results will broaden the basic understanding of chloride hydrogel electrolytes and provide new insights into the development of ultralow-temperature aqueous batteries.
文献关键词：
中图分类号：
作者姓名：
Changyuan Yan;Yangyang Wang;Xianyu Deng;Yonghang Xu
作者机构：
Shenzhen Key Laboratory of Advanced Materials,School of Materials Science and Engineering,Harbin Institute of Technology,Shenzhen 518055,People's Republic of China;School of Materials Science and Hydrogen Energy,Foshan University,Foshan 528000,China
文献出处：
引用格式：
[1]Changyuan Yan;Yangyang Wang;Xianyu Deng;Yonghang Xu-.Cooperative Chloride Hydrogel Electrolytes Enabling Ultralow-Temperature Aqueous Zinc Ion Batteries by the Hofmeister Effect)[J].纳微快报（英文）,2022(06):219-233
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AB值：
0.623543
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