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Graphene‐Based Planar Microsupercapacitors: Recent Advances and Future Challenges
Author(s) -
Liang Jiaxing,
Mondal Anjon Kumar,
Wang DaWei,
Iacopi Francesca
Publication year - 2019
Publication title -
advanced materials technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.184
H-Index - 42
ISSN - 2365-709X
DOI - 10.1002/admt.201800200
Subject(s) - miniaturization , graphene , microsystem , electronics , materials science , nanotechnology , energy storage , planar , wearable computer , wearable technology , energy harvesting , electrical engineering , power (physics) , computer science , engineering , embedded system , physics , computer graphics (images) , quantum mechanics
The continuous development of integrated electronics such as maintenance‐free biosensors, remote and mobile environmental sensors, wearable personal electronics, nanorobotics etc. and their continued miniaturization has led to an increasing demand for miniaturized energy storage units. Microsupercapacitors with graphene electrodes hold great promise as miniaturized, integrated power sources thanks to their fast charge/discharge rates, superior power performance, and long cycling stability. In addition, planar interdigitated electrodes also have the capability to reduce ion diffusion distances leading to a greatly improved electrochemical performance. Either as standalone power sources or complementing energy harvesting units, it is expected that graphene‐based microsupercapacitors will play a key role as miniaturized power sources in electronic microsystems. This review highlights the recent development, challenges, and perspectives in this area, with an emphasis on the link between material and geometry design of planar graphene‐based electrodes and their electrochemical performance and integrability.