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Doudou Feng¹, Yucong Jiao¹, Peiyi Wu¹

¹State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry and Chemical Engineering, Donghua University, Shanghai, 201620, China.

Angewandte Chemie (International ed. in English)

|November 6, 2023

概括

一种新型的聚合物添加剂,PMCNA,有效地抑制了水性能量储存系统中阳极上的寄生性副作用. 这提高了用于电网应用的利用率和电池寿命.

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:

阳极上的寄生性副作用阻碍了用于电网应用的水性能量存储系统的开发.
控制沉积和减轻副作用对于高性能电池至关重要.

研究的目的:

开发一种聚合物添加剂 (PMCNA),可以抑制副作用反应,并改善Zn阳极上的沉积.
为了增强长期循环稳定性和Zn在水性Zn基储能装置中的利用.

主要方法:

通过共聚化2 - 甲基烯酸基乙烯酸 (MPC) 和N - 烯酸胺 (NAGA) 合成的PMCNA.
研究了PMCNA在Zn金属表面上的吸附行为.
评估了使用PMCNA添加剂的Zn//Zn,Zn//活性碳 (AC) 和Zn//PANI设备的性能.

主要成果:

在Zn阳极上,PMCNA形成了一层统一的保护层,驱逐水和抵抗副作用.
在002平面上,PMCNA促进Zn核和沉积,抑制树突.
Zn//Zn电池在420多小时内实现了90.0%的放电深度; Zn//AC电容器显示了延长的循环寿命; Zn//PANI电池显示了51.3%的利用率.

结论:

PMCNA是一种高效的添加剂,可以抑制副作用,并改善水性能量储存中的 Zn 阳极性能.
开发的添加剂可实现高排放深度,长周期寿命和高效的利用,为电网规模应用铺平了道路.

关键词:

水性 Zn 电池的使用情况高Zn利用率的使用.聚合物添加剂是一种聚合物添加剂.Zn 002 晶体平面晶体平面 Zn 阳极 Zn 阳极

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