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Engineering Geometric Electrodes for Electric Field-Enhanced High-Performance Flexible In-Plane Micro-Supercapacitors

引用

Energy & Environmental Materials 2023年第4期6卷 114-120页

作者： Jihong Kim Sung Min Wi Jong-Guk Ahn sangjun son Hee Young Lim Yeonsu Park Hye Ji Eun Jong Bae Park Hyunseob Lim Sangyeon Pak A-Rang Jang Young-Woo Lee Department of Energy Engineering Soonchunhyang UniversityAsan 31538Korea Department of Chemistry Gwangju Institute of Science and TechnologyGwangju 61005Korea Jeonju Centre Korea Basic Science InstituteJeonju 54907Korea Prof.S.Pak School of Electronic and Electrical Engineering Hongik UniversitySeoul 04066Korea Division of Electrical Electronic and Control EngineeringKongju National UniversityCheonan 31080Korea

In plane micro-supercapacitors that are miniaturized energy storage components have attracted significant attention due to their high power densities for various ubiquitous and sustainable device systems as well as their facile integration on various flexible/wearable *** implement the micro-supercapacitors in various practical applications that can accompany solid state or gel electrolyte and flexible substrates,ions must be readily transported to electrodes for achieving high power ***,we show large enhancement in electrochemical properties of flexible,inplane micro-supercapacitor using sharp-edged interdigitated electrode design,which was simply fabricated through direct laser scribing *** sharp-edged electrodes allowed strong electric field to be induced at the corners of the electrode fingers which led to the greater accumulation of ions near the surface of electrode,significantly enhancing the energy storage performance of *** electric field-enhanced in-plane micro-supercapacitor showed the volumetric energy density of 1.52 Wh L^(−1)and the excellent cyclability with capacitive retention of 95.4%after 20000 *** further showed various practicability of our sharp-edged design in micro-supercapacitors by showing circuit applicability,mechanical stability,and air *** results present an important pathway for designing electrodes in various energy storage devices.

关键词： electric field enhancement flexible energy storage device microsupercapacitors sharp electrodes

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