通过Redox国家管理延长有机流电池的使用寿命
Marc-Antoni Goulet1, Liuchuan Tong2, Daniel A Pollack3
1Harvard John A. Paulson School of Engineering and Applied Sciences , Harvard University , Cambridge , Massachusetts 02138 , United States.
Journal of the American Chemical Society
|April 5, 2019
概括
研究人员确定了基流电池的关键降解途径,其中中介物导致容量损失. 减轻这种形形成可以显著延长可再生能源存储的电池寿命.
科学领域:
- 电化学
- 材料科学
- 储存可再生能源
背景情况:
- 基于的水性电解质对氧化还原流电池具有前景.
- 电池寿命目前受到稳定性的限制.
研究的目的:
- 确定和量化降解机制限制基于的流电池的使用寿命.
- 制定减轻这种降解途径的策略.
主要方法:
- 实验证实了中介的形成和二元化.
- 与分解相关的产能损失的定量分析.
- 计算研究以了解降解的驱动力.
主要成果:
- 2,6-二甲基通过中介分解,导致不可逆转的二元化.
- 甲基的较低的还原潜力增加了甲基形成的驱动力.
- 减缓策略将产能损失率降低了一级以上.
结论:
- 已发现的分解途径是这些电池容量衰减的主要原因.
- 对于长寿命的有机流电池来说,最大限度地减少形和二元化是至关重要的.
- 这种缓解方法适用于其他基于 antraquinone 的流量电池.
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