期刊
APPLIED SCIENCES-BASEL
卷 12, 期 2, 页码 -出版社
MDPI
DOI: 10.3390/app12020862
关键词
carbon; energy storage; micro-machining; supercapacitor; thin film; wearable electronics
类别
资金
- KU Leuven Internal Funds Bijzonder Onderzoeksfonds [STG/20/013]
The rapid development of wearable electronics has driven the demand for flexible micro-devices for energy storage. Micro-supercapacitors are highly regarded for their high power density, long cycle lifetime, and fast charge and discharge. This review briefly introduces the different types of micro-supercapacitors, advancements in carbon electrode materials, various electrolytes used, and the latest developments in fabrication techniques.
The very fast evolution in wearable electronics drives the need for energy storage micro-devices, which have to be flexible. Micro-supercapacitors are of high interest because of their high power density, long cycle lifetime and fast charge and discharge. Recent developments on micro-supercapacitors focus on improving the energy density, overall electrochemical performance, and mechanical properties. In this review, the different types of micro-supercapacitors and configurations are briefly introduced. Then, the advances in carbon electrode materials are presented, including activated carbon, carbon nanotubes, graphene, onion-like carbon, and carbide-derived carbon. The different types of electrolytes used in studies on micro-supercapacitors are also treated, including aqueous, organic, ionic liquid, solid-state, and quasi-solid-state electrolytes. Furthermore, the latest developments in fabrication techniques for micro-supercapacitors, such as different deposition, coating, etching, and printing technologies, are discussed in this review on carbon electrode-based micro-supercapacitors.
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