Advances in Si and SiC Materials for High‐Performance Supercapacitors toward Integrated Energy Storage Systems

• Published in: Small (Weinheim an der Bergstrasse, Germany) Vol. 17; no. 49; pp. e2101775 - n/a
• Main Authors: Nguyen, Tuan Kien, Aberoumand, Sadegh, Dao, Dzung Viet
• Format: Journal Article
• Language: English
• Published: Weinheim Wiley Subscription Services, Inc 01.12.2021
• Subjects: electrode materials; Energy storage; integrated systems; Lithium-ion batteries; Nanotechnology; silicon; Silicon carbide; Storage batteries; Storage systems; Supercapacitors
• ISSN: 1613-6810; 1613-6829
• DOI: 10.1002/smll.202101775

Silicon (Si), as the second most abundant element on Earth, has been a central platform of modern electronics owing to its low mass density and unique semiconductor properties. From an energy perspective, all‐in‐one integration of power supply systems onto Si‐based functional devices is highly desirable, which inspires significant study on Si‐based energy storage. Compared to the well‐known Si‐anode Li‐ion batteries, Si‐based supercapacitors possess high power density, long life, and simple working mechanisms, which enables their ease of integration onto a wide range of devices and applications. Besides Si, silicon carbide (SiC), as a physicochemically stable wide‐bandgap semiconductor, also attracts research attention as an energy storage material in harsh environments. In this review, a detailed overview of latest advances in materials design, synthesis methods, and performances of Si‐based and SiC‐based supercapacitors will be provided. Some successful integrated devices, future perspectives, and potential research directions are also highlighted and discussed. Research motivation of Si and SiC materials for high‐performance supercapacitors arises from both energy and fabrication perspectives. This review systematically summarizes the advances in Si‐based and SiC‐based supercapacitors, focusing on materials design, synthesis strategies, and performances. Herein, the intrinsic properties of Si and SiC toward supercapacitor applications are thoroughly discussed. Typical successful integrated devices and future outlook are also emphasized and explored.