钾离子电容器中的乙二醛基电解质

IF 8.1 2区工程技术 Q1 CHEMISTRY, PHYSICAL

Journal of Power Sources Pub Date : 2024-11-26 DOI:10.1016/j.jpowsour.2024.235903

Lea C. Meyer, Desirée Leistenschneider, Andrea Balducci

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引用次数: 0

摘要

钾基储能系统在大功率应用领域（如钾离子电容器 (PIC)）展现出了巨大的应用潜力。在本研究中，我们介绍了一种含有 1,1,2,2- 四乙氧基乙烷 (TEG) 与碳酸丙烯酯 (PC) 和双氟磺酰亚胺钾 (KFSI) 的电解质作为 PIC 的电解质。我们已经证明，使用这种电解质并应用设计的测试协议，可以实现具有良好容量和循环稳定性的 PIC。之所以能实现高性能，是因为石墨电极在所提议的电解液中具有高速率能力。对电极的后续分析表明，石墨电极的结构发生了变化，交流电和石墨电极表面的化学成分也发生了变化。

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Glyoxal-based electrolytes in potassium-ion capacitors

Potassium-based energy storage systems demonstrate promising potential for use in high-power applications, such as potassium-ion capacitors (PICs). In this study, we present the use of an electrolyte containing 1,1,2,2-tetraethoxyethane (TEG) in combination with propylene carbonate (PC) and potassium bis(fluorosulfonyl)imide (KFSI) as electrolyte for PICs. We have shown that using this electrolyte and applying a designed test protocol, it is possible to realize PICs with good capacity and cycling stability. The high performance is possible due to the high-rate capability of the graphite electrodes in the proposed electrolyte. Subsequent analysis of the electrodes reveals both structural changes of the graphite electrode and changes in the chemical composition of the AC and graphite electrode surfaces.

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来源期刊

Journal of Power Sources 工程技术-电化学

CiteScore

16.40

自引率

6.50%

发文量

1249

审稿时长

36 days

期刊介绍： The Journal of Power Sources is a publication catering to researchers and technologists interested in various aspects of the science, technology, and applications of electrochemical power sources. It covers original research and reviews on primary and secondary batteries, fuel cells, supercapacitors, and photo-electrochemical cells. Topics considered include the research, development and applications of nanomaterials and novel componentry for these devices. Examples of applications of these electrochemical power sources include: • Portable electronics • Electric and Hybrid Electric Vehicles • Uninterruptible Power Supply (UPS) systems • Storage of renewable energy • Satellites and deep space probes • Boats and ships, drones and aircrafts • Wearable energy storage systems