Abstract Stretchable supercapacitors are promising energy storage devices for fabricating integrated wearable electronics. MXenes had shown great potential in electrochemical energy storage applications. However, it was still a big challenge to realize the performance of stretchable energy devices due to the mechanical stiffness of their 2D layered structures. Here, MXene based electrodes with structural stretchability were fabricated by spraying-baking Ti3C2Tx MXene flakes on tailored stainless steel mesh. With poly vinyl alcohol-sulfuric acid gel as electrolyte and separator, the performance of stretchable supercapacitor exhibited an areal capacitance of 33.3 mF cm−2 at scan rate of 10 mV s−1, and can be stretched up to 30% with 2.4% capacitance decay over 500 stretching cycles.

中文翻译：

---

用于可拉伸超级电容器的 Ti3C2Tx MXene 涂层金属网电极

摘要 可伸缩超级电容器是用于制造集成可穿戴电子设备的有前途的储能装置。MXenes 在电化学储能应用中显示出巨大的潜力。然而，由于其二维分层结构的机械刚度，实现可拉伸能量设备的性能仍然是一个巨大的挑战。在这里，具有结构拉伸性的基于 MXene 的电极是通过在定制的不锈钢网上喷涂烘烤 Ti3C2Tx MXene 薄片来制造的。以聚乙烯醇-硫酸凝胶作为电解质和隔膜，可拉伸超级电容器的性能在10 mV s-1的扫描速率下表现出33.3 mF cm-2的面电容，并且可以在2.4%的电容下拉伸至30%衰减超过 500 个拉伸循环。