To obtain a flexible supercapacitor with excellent capacitance, good mechanical properties while maintaining self-healing ability, β-NiS/Ti₃C₂T_x with 2D/2D heterostructure was synthesized by hydrothermal reaction and introduced as filler to the polymer hydrogel PAA/CS(PC) network. Through mechanical and self-healing performance tests, it was found that the hydrogel electrode had high tensile properties with tensile strain up to 566% and excellent self-healing properties with efficiency as high as 84%. The electrode not only exhibits a specific capacitance of 10.92 F/g at a current density of 6 mA/g, but also still shows an excellent stability of 87% at a high current density of 20 mA/g for 2000 cycles. This novel hydrogel facilitates the further development of multifunctional, smart and flexible electronics.

为了获得具有优异电容、良好机械性能同时保持自愈能力的柔性超级电容器，β-NiS/Ti ₃ C ₂ T _x通过水热反应合成具有二维/二维异质结构的聚合物，并将其作为填料引入聚合物水凝胶 PAA/CS(PC) 网络。通过机械和自修复性能测试，发现该水凝胶电极具有高拉伸性能，拉伸应变高达 566%，具有优异的自修复性能，效率高达 84%。该电极不仅在 6 mA/g 的电流密度下表现出 10.92 F/g 的比电容，而且在 20 mA/g 的高电流密度下 2000 次循环仍显示出 87% 的优异稳定性。这种新型水凝胶促进了多功能、智能和柔性电子产品的进一步发展。