基于印刷技术制备柔性微型电容器的研究进展

柔性微型超级电容器作为一种新兴的储能器件,具有充放电速度快、功率密度大、循环寿命长等优点,在可穿戴电子设备领域中具有良好的应用前景。为实现柔性显示器、晶体管、射频识别装置及可穿戴设备等柔性电子产品的协同发展,针对微型超级电容器中存在的关键问题,阐述了制备微型超级电容器的凹版印刷法和丝网印刷方法,认为丝网印刷法工艺简单、耗时短、可集成、易实现工业化生产,该技术制备的叉指结构可在有限平面内实现离子转移;针对导电油墨的核心印刷技术,分析了无机系、有机系及复合型导电油墨研究近况,总结了复合型导电油墨制备的微型超级电容器电容特性,对其应用前景进行展望。

Research progress in flexible micro supercapacitor based on printing technology

As a new energy storage device, flexible micro-supercapacitor has the advantages of fast charging and discharging, high power density and long cycle life, which has a good application prospect in wearable electronic devices. In order to facilitate the normal use of flexible electronic products such as flexible displays, transistors, radio frequency identification devices and wearable devices, this review paper introduces the gravure printing method and screen printing method for the preparation of micro supercapacitors, which are the key problems in the preparation of micro supercapacitors. Screen printing method has the advantages of being a simple process, short time consumption, integration and industrial production. The interdigital structure prepared by screen printing can achieve ion transfer in a limited plane. Conductive ink is the core part of printing technology, and inorganic, organic and composite conductive inks are analyzed. Micro supercapacitors prepared with composite conductive inks have good capacitance characteristics, and their application prospects are prospected.