通过将生物基溶剂与低盐相结合,提高离子电容器的电解质可持续性
Andrea Hainthaler1, Manuel J Pinzón2, Maria Arnaiz2
1Institute of Technical and Environmental Chemistry, Friedrich Schiller University Jena and Center for Energy and Environmental Chemistry (CEEC) Jena, Jena, Germany.
ChemSusChem
|February 8, 2026
概括
本研究介绍了用于离子电容器 (SIC) 的可持续电解质,使用生物基溶剂和低盐. 新配方的性能与传统电解质相当,提供了一个更环保的替代品.
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
- 绿色化学 绿色化学
背景情况:
- 离子电容器 (SIC) 是一个有前途的储能装置.
- 当前的SIC电解质通常依赖于不可持续的组件.
- 需要环保的电解质替代品.
研究的目的:
- 开发和评估SIC的可持续电解质.
- 为了研究一种基于二二 (NaDFOB) 和γ-瓦列洛拉克 (GVL) 的新型电解质的性能.
- 为了比较新的电解质系统的不同预化策略.
主要方法:
- 一种新型电解质的配方:1 mol L-1 NaDFOB 在 GVL.
- 使用新的电解质制造和测试SIC全电池.
- 与传统的电解质 (1mol L-1 NaPF6 在 EC:PC 中) 的比较.
- 评估现场和现场预化策略.
- 使用X射线光电子谱学 (XPS) 分析固体电解质间相 (SEI).
主要成果:
- 该NaDFOB/GVL电解质的性能与SIC全电池中传统的NaPF6/EC:PC系统相当.
- 二酸盐的 in situ 氧化和 ex situ 电化学预化都产生了类似的结果.
- 根据XPS分析,基于前化方法,SEI成分存在显著差异.
结论:
- 一个可持续的电解质配方SICs已经成功开发.
- 新型电解质为传统系统提供了可行的高性能替代品.
- 预化策略显著影响SEI形成,影响设备性能.
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