CHEMICAL SCIENCE

Research status and development prospects of highly integrated, customizable miniature supercapacitors


June 16, 2022,Researcher Wu Zhongshuai, Dalian Institute of Chemical Physics, Chinese Academy of SciencesNew energy journalsNano Research EnergyPublished a review paper titled “Recent status and future perspectives of ultracompact and customizable micro-supercapacitors”.

With the development of the Internet of Things and information technology, we will gradually enter the era of intelligence. In the face of the vigorous development of wearable health monitoring devices, implantable microelectronic medical devices, multi-node sensors for environmental monitoring and other intelligent, lightweight, miniaturized electronic products, as an important part of microelectronic devices, micro energy storage devices must also be orientedLight weight, small size, high energy, long life, easy to integrateThe direction of all-round development. Among the many miniature energy storage devices, the planar micro supercapacitor of the fork finger configuration hasExcellent power output, long life (~100,000 cycles), controlled electron/ion transport paths, designable and customizable performanceandEasy integration with other microelectronic systemsand many other advantages, itsAs a power source component for self-powered/wirelessly powered microelectronic systemsIt is receiving more and more attention. So far, miniature supercapacitors are inElectrochemical properties, functional characteristics and system integrationGreat research progress has been made in many aspects. However, micro supercapacitors still existLarge geometry and low integrationand other issues, withCompatible preparation and monolithic integration of microelectronic systemsIt’s still a huge challenge.

In this review, the team mainly reviewedSmaller than 10mm2 device area, highly integrated, customizable miniature supercapacitorsResearch status and development prospects. First of all, reviewThe development of miniature supercapacitors in a very small space。 Secondly, the latest research progress of ultra-small micro supercapacitors is systematically summarized, including: (i.)Advanced microfabrication technologyTo prepare miniaturized, high resolution, output voltage and capacitance adjustable ultra-small miniature supercapacitor; (ⅱ)Precise drop-dosing technology for electrolytes, the electrolyte is precisely added to the designed micro-device without interfering with other devices or other electronic units in the microelectronic system; (ⅲ)Feasible strategies to improve the performance of tiny devicesConstruct a thick electrode with high electron/ion transport characteristics, a three-dimensional microelectrode structure, and a special device configuration with high spatial utilization. Finally, fromCompatible electrode material preparation technology, thin film preparation technology, patterned microelectrode preparation technologyThe perspective of the current challenges and future research directions of ultra-small micro supercapacitors is prospected, and scholars in the fields of materials, chemistry and microelectronics technology are called for interdisciplinary cooperation to promote the wide application of ultra-small micro supercapacitors in microscale chip electronic devices in the future.

Figure 1: A key influencing factor in the preparation of highly integrated, customizable miniature supercapacitors

Related paper information:

S. Wang, J. Ma, X. Shi, et al. Recent status and future perspectives of ultracompact and customizable micro-supercapacitors. Nano Research Energy. https://doi.org/10.26599/NRE.2022.9120018.

DOI:10.26599/NRE.2022.9120018

As a sister journal of Nano Research, Nano Research Energy (ISSN: 2791-0091; e-ISSN: 2790-8119; Official website: https://www.sciopen.com/journal/2790-8119It was launched in March 2022 and is co-edited by Professor Qu Liangti of Tsinghua University and Professor Chunyi Zhi of the City University of Hong Kong. Nano Research Energy is an international multidisciplinary, all-English open access journal, focusing on the cutting-edge research and application of nanomaterials and nanoscience technology in new energy-related fields, benchmarking against the top international energy journals, and committed to publishing high-level original research and review papers. Before 2023, the APC fee will be waived, and all teachers are welcome to submit articles.

Please contact: NanoResearchEnergy@tup.tsinghua.edu.cn

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