Lee, Geumbee Kim, Daeil Kim, Doyeon Oh, Sooyeoun Yun, Junyeong Kim, Jihyun Lee, Sang-Soo Ha, Jeong Sook 2024-01-20T07:01:18Z 2024-01-20T07:01:18Z 2021-09-05 2015-06 1754-5692 https://pubs.kist.re.kr/handle/201004/125367 In this study, we report the fabrication of a stretchable and patchable array of micro-supercapacitors (MSCs) using a gel-type electrolyte of poly(methyl methacrylate)-propylene carbonate-lithium perchlorate. As electrodes, a layer-by-layer-assembled thin film of multi-walled carbon nanotubes with a top layer of Mn3O4 nanoparticles was used. The fabricated MSC maintained over 85% of its performance for 2 weeks in ambient air without encapsulation owing to the use of a non-aqueous solvent based gel electrolyte. Dry-transferred MSC arrays on a specially designed stretchable polymer substrate exhibited stable electrochemical performance under various deformations, including bending, twisting, both uniaxial and biaxial stretching up to 50%, and winding around the curved substrate. Furthermore, the encapsulated MSC array with a thin polymer film directly attached to skin maintained its electrochemical performance under repeated body movement, cycles of attachment-detachment, and even in water. This study clearly demonstrates a stretchable and patchable MSC array for practical use as an energy storage device that can be attached to the body for electronic function, even under wet conditions. English Royal Society of Chemistry SELF-POWERED SYSTEMS PROPYLENE CARBONATE ELECTROCHEMICAL CAPACITORS ASYMMETRIC SUPERCAPACITORS FLEXIBLE SUPERCAPACITORS POLYMER ELECTROLYTES ENERGY-STORAGE GRAPHENE NANOWIRES BATTERIES Fabrication of a stretchable and patchable array of high performance micro-supercapacitors using a non-aqueous solvent based gel electrolyte Article 10.1039/c5ee00670h 1 Energy & Environmental Science, v.8, no.6, pp.1764 - 1774 Energy & Environmental Science 8 6 1764 1774 scie scopus 000355985700015 2-s2.0-84930733469 Chemistry, Multidisciplinary Energy & Fuels Engineering, Chemical Environmental Sciences Chemistry Energy & Fuels Engineering Environmental Sciences & Ecology Article SELF-POWERED SYSTEMS PROPYLENE CARBONATE ELECTROCHEMICAL CAPACITORS ASYMMETRIC SUPERCAPACITORS FLEXIBLE SUPERCAPACITORS POLYMER ELECTROLYTES ENERGY-STORAGE GRAPHENE NANOWIRES BATTERIES Micro-supercapacitor stretchability gel-electrolyte patchability