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乙烯糖醇 - 胆化基水合深度修养电解质启用高性能离子电池

Rangaswamy Puttaswamy¹, Hyocheol Lee¹, Hyo-Won Bae²

¹School of Chemical Engineering, Sungkyunkwan University, Suwon, Gyeonggi, 16419, Republic of Korea.

Small (Weinheim an der Bergstrasse, Germany)

|April 23, 2024

概括

这项研究引入了用于水性可充电离子电池 (ARZIB) 的新型水化深电解质 (HDEE) 和V10O24·nH2O@rGO阴极. 优化的HDEE可实现无状石循环和高性能,推进安全高效的能量储存.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
储能储能储能储能储能储能

背景情况:

水性可充电离子电池 (ARZIBs) 提供了一个安全且具有成本效益的储能解决方案.
在ARZIB的挑战包括电极稳定性和电解质性能.
开发先进的电解质和电极材料对于ARZIB的发展至关重要.

研究的目的:

开发用于ARZIBs的新型水合深性电解质 (HDEEs).
为了合成和研究V10O24·nH2O@rGO复合材料的阴极材料.
为了评估ARZIBs中HDEE和阴极组合的电化学性能.

主要方法:

基于乙烯基醇 - 胆化物 (Eg-ChCl) 的HDEEs的配方和特征.
一个V10O24·nH2O@rGO复合阴极的合成.
电化学测试包括循环,速率能力和稳定性研究.
一个灵活的囊细胞原型的制造和测试.

主要成果:

优化的1-0.5-4-2 HDEE 呈现出低粘度,高 Zn2+ 导电性 (20.38 mS cm-1),以及高 Zn 转移数 (0.937).
该HDEE显示了广泛的电化学稳定性窗口 (>3.2V),并使得无树的Zn剥离/层能够持续超过1000小时.
该ZnV10O24·nH2O@rGO//HDEE电池实现了高可逆容量 (≈365 mAh g-1),优异的速率性能和显著的循环稳定性 (在10 A g-1下4000个循环后保持63.10%).
该系统在广泛的温度范围 (0-80°C) 中表现稳定.

结论:

开发的HDEE和V10O24·nH2O@rGO复合材料为高性能和安全的ARZIB提供了一个有希望的方法.
优化的电解质成分显著提高了离子运输和电极稳定性.
灵活的囊细胞原型展示了这种技术在各种应用中的实际潜力.

关键词:

在V10O24·nH2O@rGO中使用.胆化物胆化物乙烯基甘醇是一种乙烯基甘醇.欧特克斯电解质是一种电解质.离子离子是一种离子.

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