Research Progress in MnO2–Carbon Based Supercapacitor Electrode Materials

• Published in: Small (Weinheim an der Bergstrasse, Germany) Vol. 14; no. 24; pp. e1702883 - n/a
• Main Authors: Zhang, Qun‐Zheng, Zhang, Dian, Miao, Zong‐Cheng, Zhang, Xun‐Li, Chou, Shu‐Lei
• Format: Journal Article
• Language: English
• Published: Weinheim Wiley Subscription Services, Inc 14.06.2018
• Subjects: Capacitance; Carbon; carbon materials; Clean energy; Composite materials; Economic development; Economics; Electrode materials; Electrodes; Energy storage; energy storage devices; Fossil fuels; Global economy; Manganese dioxide; Nanotechnology; Organic chemistry; Supercapacitors; Sustainable development
• ISSN: 1613-6810; 1613-6829; 1613-6829
• DOI: 10.1002/smll.201702883

With the serious impact of fossil fuels on the environment and the rapid development of the global economy, the development of clean and usable energy storage devices has become one of the most important themes of sustainable development in the world today. Supercapacitors are a new type of green energy storage device, with high power density, long cycle life, wide temperature range, and both economic and environmental advantages. In many industries, they have enormous application prospects. Electrode materials are an important factor affecting the performance of supercapacitors. MnO2‐based materials are widely investigated for supercapacitors because of their high theoretical capacitance, good chemical stability, low cost, and environmental friendliness. To achieve high specific capacitance and high rate capability, the current best solution is to use MnO2 and carbon composite materials. Herein, MnO2–carbon composite as supercapacitor electrode materials is reviewed including the synthesis method and research status in recent years. Finally, the challenges and future development directions of an MnO2–carbon based supercapacitor are summarized. In this paper, the mechanism of MnO2‐based supercapacitors is summarized, and the synthesis method and research status of MnO2‐carbon based supercapacitor electrode materials in recent years are reviewed. Finally, the challenges and future development directions of MnO2‐carbon based supercapacitors are discussed.