商用膜在高温有机液流电池中的稳定性和性能。

IF 3.3 4区工程技术 Q2 CHEMISTRY, PHYSICAL

Membranes Pub Date : 2024-08-15 DOI:10.3390/membranes14080177

Chiari J Van Cauter, Yun Li, Sander Van Herck, Ivo F J Vankelecom

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引用次数: 0

摘要

氧化还原液流电池（RFB）通常在极端 pH 值条件下工作，可能需要冷却以防止高温。电池膜在这些极端 pH 值和高温条件下的稳定性在很大程度上仍是未知数。本文在有机水基 RFB 中对九种商用膜在 pH 值为 14 和 pH 值≤0、温度高达 80 °C 时的性能和稳定性进行了系统筛选。结果显示了经过 40-80 °C 温度处理后的膨胀、面积电阻、扩散交叉、电池性能和膜稳定性，然后针对不同的用户情况提出了建议。Aquivion E98-05 隔膜在 Tiron/2,7-AQDS 电池和 DHPS/Fe(CN)6 电池中的 40 mA/cm2 下表现最佳，在 80 °C 下存放一周后结果稳定。在 80 mA/cm2 下，E-620-PE 在 DHPS/Fe(CN)6 电池中表现最佳，而 Sx-050DK 在 Tiron/2,7-AQDS 电池中表现最佳。

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Stability and Performance of Commercial Membranes in High-Temperature Organic Flow Batteries.

Redox flow batteries (RFB) often operate at extreme pH conditions and may require cooling to prevent high temperatures. The stability of the battery membranes at these extreme pH-values at high temperatures is still largely unknown. In this paper, a systematic screening of the performance and stability of nine commercial membranes at pH 14 and pH ≤ 0 with temperatures up to 80 °C is conducted in an organic aqueous RFB. Swelling, area resistance, diffusion crossover, battery performance and membrane stability after 40-80 °C temperature treatment are shown, after which a recommendation is made for different user scenarios. The Aquivion E98-05 membrane performed best for both the Tiron/2,7-AQDS battery and the DHPS/Fe(CN)₆ battery at 40 mA/cm², with stable results after 1 week of storage at 80 °C. At 80 mA/cm², E-620-PE performed best in the DHPS/Fe(CN)₆ battery, while Sx-050DK performed best in the Tiron/2,7-AQDS battery.

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来源期刊

Membranes Chemical Engineering-Filtration and Separation

CiteScore

6.10

自引率

16.70%

发文量

1071

审稿时长

11 weeks

期刊介绍： Membranes (ISSN 2077-0375) is an international, peer-reviewed open access journal of separation science and technology. It publishes reviews, research articles, communications and technical notes. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. Full experimental and/or methodical details must be provided.