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高度可逆的水性离子电池通过多功能键丰富的dulcitol在较低的温度

Ya He¹, Zhuo Chen¹, Junrun Feng¹

¹School of Science, School of Chip Industry, Hubei University of Technology, Wuhan, Hubei, 430068, China.

Small (Weinheim an der Bergstrasse, Germany)

|January 31, 2025

概括

在水性离子电池 (AZIB) 中添加的dulcitol (DOL) 电解质抑制了树的生长,并提高了低温性能. 这一策略增强了电池的稳定性和寿命,从而可靠地储存能量.

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:

水性离子电池 (AZIB) 提供具有成本效益和安全的能源存储.
关键的挑战包括不受控制的树状石生长和低温性能差.

研究的目的:

为了提高AZIB的稳定性和低温性能.
为了研究dulcitol (DOL) 对电解质特性和阳极行为的影响.

主要方法:

在 ZnSO4 电解质中引入富含结的 dulcitol (DOL).
分析电解质溶解结构和阳极表面相互作用.
在Zn//Zn对称细胞和NH4V4O10 (NVO)//Zn全细胞上进行长期循环测试.

主要成果:

DOL重新塑造了电解质的键网络,减少了活性水并抑制了寄生反应.
在阳极上DOL的优先吸附引导了均的Zn2+沉积,抑制了树突.
对称的电池实现了2000小时的稳定性;完整的电池在800个循环后表现出183.07mAhg-1容量.
低温性能得到改善,在600个循环后在-10°C下保持155.95 mAh g-1.

结论:

杜尔醇 (DOL) 是一种有效的添加剂,可以改善AZIB的稳定性和低温操作.
这种方法为开发高性能AZIB提供了新的战略.
这些发现有助于推进下一代储能解决方案.

关键词:

在Zn沉积中,沉积了Zn.水性离子电池水性离子电池杜尔西托尔 (dulcitol) 是一种可怕的药物.富含结合的富含结合的在低温的低温下,

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