Extremely flexible and mechanically durable planar supercapacitors: High energy density and low-cost power source for E-skin electronics
作者： Yeonghun Yun , Koteeswara Reddy Nandanapalli , Ji-Hyuk Choi , Wonkyeong Son , Changsoon Choi
DOI: 10.1016/J.NANOEN.2020.105356
关键词:
摘要: Abstract The development of multifunctional devices on highly flexible and biocompatible substrates has received great attention in the field wearable healthcare technologies. To realize such a unique technology typically single platform, it is very crucial to adopt highly-flexible embeddable energy storage with adequate efficiencies as power sources. In this direction, we introduce versatile scalable approach fabricate planar symmetric micro-supercapacitors, which can be mounted any complicated surface. micro-supercapacitors developed ultrathin by angular spray graphene-ink showed excellent performance maximum areal capacitance ~8.38 mF/cm2 operating flexibility for bending radius 1.8 mm. also displayed outstanding mechanical stability 10,000 cycles high specific (~22 F/g) density (~1.13 kW/kg) at scan rate 100 mV/s. Further, demonstrations skin-mountable wrappable characteristics mSCs emphasized their adaptability sources various epidermal devices.
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