Technical Article
Powered by:

Co(OH)2/Ag based interdigital micro-supercapacitor fabricated via laser welding and electrodeposition with excellent bendability

Ag/Co(OH)2 interdigital electrode with unique micro-flower structure was fabricated by welding Ag nanoparticles to polyproplene (PP) substrate via laser irradiation, followed by electrodeposition of Co(OH)2. The Ag/Co(OH)2 composite exhibited specific capacitance of 729?Fg?1 at current density of 0.5 Ag?1. Micro-supercapacitor was fabricated through coating KOH/polyvinyl alcohol hydrogel as electrolyte onto the interdigital electrode. Maximum energy density of 9.47?Whkg?1 at power density of 300?Wkg?1 had been obtained for the micro-supercapacitor with excellent bendability, demonstrating capacitance retention of approximately 97.67% after 1000 bending cycles. The enhanced bendability compared with the supercapacitors reported previously may be attributed to that the surface of thermoplastic PP melted under laser irradiation to form a melt, which soaked Ag nanoparticles and then solidified, thus realizing the good adhesion between PP and Ag. This technology opens up opportunities for facile and universal fabrication of high performance micro-supercapacitors.

» Author: Mingping He, Wanli Xu, Yuechao Wu, Zhenqiang Dong, Liang Lv

» Reference: 10.1016/j.inoche.2019.04.013

» Publication Date: 01/06/2019

» More Information

« Go to Technological Watch

AIMPLAS - Instituto Tecnolgico del Plstico | C/ Gustave Eiffel, 4 (Valncia Parc Tecnolgic) | 46980 - PATERNA (Valencia) - SPAIN
(+34) 96 136 60 40

This project has received funding from the European Union Seventh Framework Programme (FP7/2007-2013) under grant agreement n [609203].

The sole responsibility for the content of this website lies with the authors. It does not necessarily reflect the opinion of the EC. The EC is not responsible for any use that may be made of the information contained therein.