开发低化,可持续和可回收的电解质,基于高性能离子电池的γ-瓦莱洛拉克顿
Yiyue Lu1, Muhammad Nouman Aslam1, Juan Luis Gómez Urbano1
1Institute of Technical and Environmental Chemistry, Friedrich Schiller University Jena and Center for Energy and Environmental Chemistry (CEEC) Jena, Jena, Germany.
Small (Weinheim an der Bergstrasse, Germany)
|February 22, 2026
概括
本研究介绍了一种用于离子电池 (SIB) 的新型生物基电解质,使用GVL溶剂与双盐. 电解质显示出卓越的稳定性和循环性能,并证明了高效的GVL溶剂回收和再利用.
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
- 可持续能源 可持续能源
背景情况:
- 离子电池 (SIB) 是离子电池的一个有希望的替代品.
- 开发稳定和可持续的电解质对于SIB商业化至关重要.
- 生物基溶剂为传统有机电解质提供了更绿色的替代品.
研究的目的:
- 开发一种新的,双盐电解质用于SIBs使用生物基溶剂.
- 评估新型电解质的电化学性能和稳定性.
- 调查生物基溶剂和电解质的可回收性.
主要方法:
- 在GVL溶剂中使用NaDFOB和NaFSI制备双盐电解质.
- 在 P2-AFMNO 阴极半电池和带硬碳阳极的全电池中对电解质进行电化学测试.
- 使用X射线光电子谱学 (XPS) 进行尸检后分析.
- 开发和验证基于水的GVL溶剂回收工艺.
主要成果:
- 新型电解质表现出极好的电化学稳定性,高达4.3V与Na+/Na相比.
- 实现了卓越的循环稳定性:在100个循环后 (半细胞) ~87%的容量保留,在200个循环后 (全细胞) ~80%的容量保留.
- 一个以水为基础的工艺成功回收了85%的GVL溶剂,使电解质能够以可比性能重复使用.
结论:
- 基于GVL的双盐电解质为SIB提供了可持续和高性能的选择.
- 电解质表现出强大的阳极抑制和广泛的电化学稳定性.
- 有效的溶剂回收和电解质回收是可行的,提高了SIB技术的可持续性.
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