With the development of the industrial age, the battery as a source of power, the share of the world market is growing, and these problems of the traditional battery have become their own "crime", which needs to be resolved. Technology and materials are the main breakthrough points. After realizing that the battery industry will be a huge market, in the past few years, a large number of domestic and foreign companies and institutions have invested in research, hoping to find a perfect material to develop new batteries, breaking through the use. Limitations.
At the same time, the polycarbon composite materials that have been researched and developed for graphene have found that the conventional lithium ion batteries use graphite-based anode materials. In the case of similar anode performance, the performance of lithium-ion batteries largely depends on the cathode materials. Therefore, researchers of polycarbon composites have thought of using a new energy material, graphene, on the battery. The experiment shows that by adding graphene to the positive and negative materials of lithium battery, one is used as a conductive agent, and the other is as a lithium-incorporating material for the negative electrode, which can achieve high-rate fast charge and fast release while reducing the internal resistance of the battery. Significantly improve battery cycle life and improve battery resistance to high and low temperature performance.
At the same time, the graphene battery has achieved revolutionary success, and the research field of polycarbon composite graphene quantum battery has also achieved brilliant research and development results. Recently, the chief scientist of polycarbon composite materials, Professor Wang Duanlong of Harbin Institute of Technology has made a major breakthrough in the field of graphene quantum cells. Through experimental and theoretical calculations, they found that the self-developed nanographene/LiFePO4 battery has ultra-fast charge and discharge speed in aqueous solution, and the capacity can maintain 92% of theoretical capacity at 200C (3600/200=18 seconds) charge and discharge rate. . This rate performance exceeds the fastest charge and discharge rate reported by Professor MITCeder in Nature in 2009 (the capacity is maintained at 56% at 150C), and it is also found that the charge and discharge rate of the organic electrolyte is about 10 times faster than the equivalent conditions.
It is worth mentioning that the researcher of polycarbon composite materials not only improves the battery life, but also performs better than the traditional battery in anti-drum fire prevention. It successfully reverses the impact of the battery in overheated or cold weather. The embarrassing situation makes electric vehicles fully charged and smoothly used even at low temperatures. After the product landed, the polycarbon composite material called this true graphene battery a graphene quantum battery, which is expected to be launched in April 2017. The research team estimates that if graphene quantum cells are widely used, they will drive smartphones and electric vehicles to bring China hundreds of millions of economic profits every year.
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