The key of the development of interdigital microsupercapacitors (MSCs) is to increase their areal energy density. 3D printing technology can build the pseudocapacitive electrodes companying with increasing the load capacity of pseudocapacitive materials in electrodes, resulting in the great increase of the areal energy density of MSCs. However, its major challenge is to design high electrical conductive pseudocapacitive materials and the related 3D printable inks. Here, a double-electrical-layer-enhanced structure of pseudocapacitive materials for electrodes is designed and its 3D printable ink is proposed and prepared in a simple method. The ink is used directly to 3D print the MSCs electrodes with double-electrical-layer-enhanced structure of pseudocapacitive materials simultaneously. The structure enhanced electrical conductivity of pseudocapacitive electrodes and their high load capacity boom the electrochemical performance of MSCs, especially the areal energy density. The method developed here is a good reference for research communities in this field.

叉指式微型超级电容器（MSCs）发展的关键是增加其面能量密度。3D打印技术可以构建赝电容电极，同时增加电极中赝电容材料的负载能力，从而使MSCs的面能量密度大大提高。然而，其主要挑战是设计高导电赝电容材料和相关的 3D 可打印墨水。在这里，设计了一种用于电极的赝电容材料的双电层增强结构，并提出并以简单的方法制备了其 3D 可打印墨水。该墨水直接用于同时 3D 打印具有双电层增强结构赝电容材料的 MSCs 电极。该结构增强了赝电容电极的导电性及其高负载能力，提高了 MSCs 的电化学性能，尤其是面能量密度。这里开发的方法是该领域研究社区的一个很好的参考。