The Materials Of Continuous Porous Carbon Skeleton@Nano-MnO₂and Their Supercapacitor Performance

There are many problems for our world today, including global warming and environmental pollution are the two most important of them. Raising the proportion of new energy in energy consumption, reduce the consumption of fossil fuels, can effectively solve these problems. Solar, wind, etc., as new energy, which has not a continuous supply drawbacks requires efficient energy storage device into electrical energy to facilitate their use.Electrochemical energy storage devices due to the high energy efficiency, small size and light quality, is widely used. Lithium-ion batteries as an important class of electrochemical energy storage device foe the high energy density, more cycle times and less environmental pollution. In the portable device as well as a mobile power source for electric vehicles, the technology is very mature. Another type of electrochemical energy storage device is the supercapacitor, not only for it’s high capacity and a large number of cycles, but also more environmentally friendly.in particular, can produce lithium-ion batteries can not provide instantaneous large current concern. To further improve the performance, people continue the researches of supercapacitors and acquire many new results.This paper mainly discusses the improved performance by improving supercapacitor electrode preparation method, All the work as follows:1. A continuous porous structure was prepared by a new carbon material. By biomass-derived organic matter processing, will produce materials micro structure characterization by scanning electron microscopy, its composition of X-ray diffraction analysis, but also a simple test of the electrochemical properties of the material. Reference material mainly composed of carbon is prepared, and a continuous porous structure unique.2. By a simple hydrothermal reaction, the composite material prepared MnO2electrode material having a nano-topography curd the carbon material. This will be a continuous porous carbon skeleton@MnO2nano-composites SEM, XRD characterization, and direct production into a whole electrode electrochemical performance testing. The results were analyzed and discussed.3. With impregnation at room temperature, it were prepared from the continuous growth of the crystals of the porous carbon material MnO2dendrite structure. Get impregnated continuous porous carbon skeleton@MnO2nanocomposite morphology using SEM and TEM, the composition was analyzed by XRD and EDS, the composite electrode as a whole three-electrode system testing. The results were analyzed and studied.