Manipulating crystallographic growth orientation bycation-enhanced gel-polymer electrolytes toward reversiblelow-temperature zinc-ion batteries  

作　　者：Yanlu Mu Fulu Chu Baolei Wang Taizhong Huang Zhanyu Ding Delong Ma Feng Liu Hong Liu Haiqing Wang 

机构地区：[1]School of Chemistry and Chemical Engineering,University of Jinan,Jinan,the People's Republic of China [2]WILD SC(Ningbo)Intelligent Technology Co.Ltd,Ningbo,the People's Republic of China [3]School of Materials Science and Engineering,University of Jinan,Jinan,the People's Republic of China [4]Institute for Advanced Interdisciplinary Research(iAIR),College of Chemistry and Chemical Engineering,University of Jinan,Jinan,the People's Republic of China [5]State Key Laboratory of Crystal Materials,Shandong University,Jinan,the People's Republic of China

出　　处：《InfoMat》2024年第11期94-107,共14页信息材料（英文）

基　　金：National Natural Science Foundation of China,Grant/Award Number:22075290;Natural Science Foundation of Shandong Province,Grant/Award Numbers:ZR2023QB183,ZR2022QB078,ZR2021MB020,ZR2021MB029。

摘　　要：Aqueous zinc-ion batteries (AZIBs) have garnered significant research interestas promising next-generation energy storage technologies owing to theiraffordability and high level of safety. However, their restricted ionic conductivityat subzero temperatures, along with dendrite formation and subsequentside reactions, unavoidably hinder the implementation of grid-scale applications.In this study, a novel bimetallic cation-enhanced gel polymer electrolyte(Ni/Zn-GPE) was engineered to address these issues. The Ni/Zn-GPE effectivelydisrupted the hydrogen-bonding network of water, resulting in a significantreduction in the freezing point of the electrolyte. Consequently, thedesigned electrolyte demonstrates an impressive ionic conductivity of 28.70 m^(-)cm^(-1) at 20℃. In addition, Ni^(2+) creates an electrostatic shielding interphaseon the Zn surface, which confines the sequential Zn^(2+) nucleation and depositionto the Zn (002) crystal plane. Moreover, the intrinsically high activationenergy of the Zn (002) crystal plane generated a dense and dendrite-free plating/stripping morphology and resisted side reactions. Consequently, symmetricalbatteries can achieve over 2700 hours of reversible cycling at 5 mA cm^(-2),while the Zn jj V_(2)O_(5) battery retains 85.3% capacity after 1000 cycles at -20℃.This study provides novel insights for the development and design of reversiblelow-temperature zinc-ion batteries.

关 键 词：aqueous zinc battery crystallographic orientation ELECTRODEPOSITION gel polymer electrolyte low-temperature resistant 

分 类 号：TM912[电气工程—电力电子与电力传动]