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分子调节的溶解结构和电极接口使得无树的离子电池能够无树
Xiaoqin Li1, Jian Xiang2, Hai Liu2
1Institute for Advanced Study, Chengdu University, Chengdu, PR China; Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071, China.
Journal of colloid and interface science
|October 20, 2023
概括
低成本的葡萄糖胺化 (GLA) 添加到水性离子电池中可以抑制树脂的生长和副作用. 这提高了电池的性能,稳定性和储能效率.
科学领域:
- 电化学 电化学 电化学
- 材料科学 材料科学 材料科学
- 储能 储能 储能 储能 储能 储能
背景情况:
- 水性离子电池 (AZIB) 面临性能限制,原因是树的生长和界面的副作用反应.
- 这些问题损害了AZIB的可循环使用性和安全性,阻碍了它们的实际应用.
研究的目的:
- 为了研究低成本葡萄糖胺化物 (GLA) 对AZIBs中Zn阳极/电解质接口的影响.
- 为了提高 Zn 涂层/剥离的可逆性,并使用 GLA 抑制 AZIB 中的树突形成.
主要方法:
- 带有和没有GLA的Zn阳极/电解质接口的实验性表征.
- 理论计算以了解 GLA 与 Zn 离子和电解质的相互作用.
- 使用改性电解质制造和测试Zn//Zn对称电池和Zn-Mn电池.
主要成果:
- GLA 吸附在 Zn 金属表面上,形成一个保护界面,减少活性水并抑制副作用.
- 添加GLA调节Zn2+离子流量,促进溶解,并显著抑制树的生长.
- 带有 GLA 的 Zn//Zn 对称电池表现出优越的周期稳定性和较低电压歇斯底里; Zn-Mn 电池显示出增强的容量和更好的长期性能.
结论:
- 葡萄糖胺化是一种有效且低成本的添加剂,用于提高水性离子电池的性能.
- 修改后的电解质系统为开发高效和稳定的基于的储能器件提供了有前途的途径.
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