Aqueous supercapacitors (SCs) are highly desirable as the next generation of energy storage devices, holding promise being environmentally friendly and free safety concerns. However, their low water-splitting voltage prevents practical applications. Here, we utilize a dielectric-polymer-coated, hierarchically structured carbon electrode to prepare dielectric-electrolyte SC (DESC), which exhibit...

Electrochemical supercapacitors are a promising type of energy storage device with broad application prospects. Developing an accurate model to reflect their actual working characteristics is great research significance for rational utilization, performance optimization, and system simulation supercapacitors. This paper presents the fundamental principle applications supercapacitors, analyzes a...

As a novel type of green energy storage device, supercapacitors exhibit several orders magnitude higher capacities than the traditional dielectric capacitors and significantly power density secondary batteries. Supercapacitors have been widely applied in fields. Electrode materials, as pivotal components supercapacitors, play an important role electrochemical performance. Molybdenum-based mater...

fuel cells, secondary batteries and capacitors are among many promising energy storage devices. in particular, supercapacitors have attracted much attention because of their long life cycle and high power density. graphene/nickel ferrite(g-nf) based supercapacitors were successfully fabricated through a one-step facile solvothermal route. effects of synthesis conditions i.e. solvothermal time a...

Faced with the exhaustion of traditional energy sources, development new devices is current priority. Supercapacitor a type storage device high power density and long cycle life. Carbon material, metal oxide conductive polymer are three common electrode materials supercapacitors. Based on China’s situation, this paper puts forward ideas from coal to graphene In addition, research progress super...