In this study, we report for the first time about the use of aluminum bis(trifluoromethanesulfonyl)imide [Al(TFSI)₃] as conducting salt for electrochemical double-layer capacitors (EDLCs). We show that using this salt it is possible to realize highly concentrated electrolytes, which are able to suppress the anodic dissolution of the aluminum current collectors. Because of this ability, the use of this electrolyte makes possible the realization of EDLCs that can retain 80% of their initial performance after floating for 1500 h at 3 V (which is comparable to ∼5000000 cycles of charge and discharge at 1 A g^–1).

中文翻译：

---

Al（TFSI）₃作为高压电化学双层电容器的导电盐

在这项研究中，我们首次报道了将双（三氟甲磺酰基）酰亚胺铝[Al（TFSI）₃ ]用作电化学双层电容器（EDLC）的导电盐。我们表明，使用这种盐可以实现高度浓缩的电解质，该电解质能够抑制铝集流体的阳极溶解。由于具有这种能力，这种电解质的使用使EDLC得以实现，该EDLC在3 V电压下浮动1500 h后仍可保持其初始性能的80％（相当于在1 A g时约有5000000次充放电循环^{– 1}）。