POS5-0665
Directly Written Laser-Induced Graphene Ionogels for Wide-Temperature Stretchable Micro-Supercapacitors
When and Where
Nov 30, -0001
00:00 - 00:00
Presenter(s)
LEE Ha Young (KRICT (Korea research institute of chemical technology))
Co-Author(s)
Abstract
Ionogels, consisting of ionic liquids swollen within polymer networks, have emerged as attractive soft materials for electronic skin platform, referred to as Ionoskins, because of their tissue-like mechanics, environmental stability, and intrinsic ionic conductivity. In practical ionoskin systems, these soft ionic materials should be integrated with electrodes to form device architectures, which in turn require mechanically compliant energy-storage units for power supply. Here, we present a simple direct-laser-writing strategy for fabricating capacitive energy-storage devices directly on ionoskins. The ionoskin is constructed from a fully aromatic polymer network, which not only provides robust mechanical and thermal stability but also enables local conversion into laser-induced graphene (LIG). The resulting porous LIG electrodes on ionoskin maintain high electrical conductivity under applied strains. The integrated microsupercapacitors, directly patterned on ionoskin through a single laser-writing step, exhibit stable capacitive performance and excellent stretchability. Furthermore, owing to the broad thermal stability of the ionogel matrix, the devices retain reliable energy-storage performance under both low- and high-temperature conditions. This work establishes direct laser writing on ionoskins as a facile and scalable route toward integrated, stretchable, and temperature-tolerant power sources for next-generation soft electronic systems.
