用于从-20°C到70°C的灵活宽温度离子电池的Ternary Eutectic电解质
Qinbo Liu1, Junfu Li1, Doudou Xing1
1State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China.
Angewandte Chemie (International ed. in English)
|September 20, 2024
概括
这项研究开发了适用于水性离子电池 (ZIB) 的灵活电解质,可在广泛的温度范围内工作. 这种新型电解质增强了稳定性,抑制了副作用,在苛刻的条件下改善了电池寿命.
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:
- 水性离子电池 (ZIB) 由于安全性和成本,对电网应用具有前景.
- 高工作温度降低了ZIB的寿命,减少了接口稳定性并增加了副作用.
研究的目的:
- 开发一种灵活的电解质,使ZIB能够在广泛的温度下工作.
- 为了增强界面稳定性和抑制ZIB在高温下出现的副作用.
主要方法:
- 一种三元的深溶解溶剂 (Zn(ClO4) 2·6H2O,布坦丁尼特里尔,LiCl) 被纳入一个光聚合物矩阵中.
- 电解质的性能在对称的Zn电池和Zn下载PANI电池中在广泛的温度范围内 (-20°C至70°C) 进行评估.
主要成果:
- 灵活的电解质使ZIB从-20°C到70°C的稳定运行成为可能.
- 对称的 Zn 细胞表现出了显著的稳定性,在 50°C (1 mA cm−2) 持续 2780 小时.
- 灵活的Zn下载下载PANI电池在50°C下实现了1000个以上的循环,容量保持率为87.9%.
结论:
- 产生的电解质有效地抑制了接口的副作用反应和树状石的形成.
- 这一战略为设计安全,高稳定的储能器件,适用于各种温度环境提供了一条途径.
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