The graphene prepared by white has a high monolayer rate (up to 99%), fewer defects, and can be dried for a long time. Can be prepared into a variety of solutions to facilitate compounding with other materials. Raw material is natural graphite from a wide range of sources, is prepared by industrial methods can be scaled up production. To make the industrial application of graphene possible, promote the advancement of high-tech materials, and promote industrial development.
Chapter 3 Graphene-modified activated carbon for supercapacitor has good technical performance:Long cycle life, graphene modified ultracapacitors mountain in its storage process does not produce chemical reaction, the energy storage process is reversible, no "memory effect", can be repeated charge and discharge hundreds of thousands of times, 500 times that of corrosion ion batteries, nickel-metal hydride and nickel cadmium battery is 1000 times, if the ultracapacitors charge-discharge 20 times a day, continuous use of up to 68 years:
High efficiency: super current discharge capacity, high energy conversion efficiency, small process loss, high current energy cycle efficiency ≥90%.coal activated carbon supplier
The background of the project and the necessity of investment construction
In recent years, with the continuous decrease of wood resources and the deterioration of ecological environment worldwide, environmental protection, the realization of sustainable development and comprehensive utilization of resources have become a common concern ofpeople and a problem that the international community is committed to solving.To further improve the level of comprehensive utilization of wood resources and the added value of products has become the main goal of the world wood processing industry.
China has a large population and is short of forest resources. The per capita forest stock volume is 0.12m3, lower than the world average level of 0.65 m3.China's wood comprehensive utilization level is also low, only 40%, and advanced countries can reach 80%, and in the level of technology, product grade, production efficiency, market competitiveness and other aspects compared with the developed countries also have a big gap.granular activated charcoal