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Shenzhen Green Power Energy Battery Co.,ltd specializes in a wide range of digital battery such as environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery, 3.7V lithium polymer battery, NiMH battery, NiCD battery, dry cell battery, alkaline battery, heavy duty battery, button cell battery etc. we devote to R&D, innovation, production & sales. With automatic production machines we have been exported goods to all over the world over 15years. We have complete exported certificate such as KC, CE, UL, BSCI, ROHS, BIS, SGS, PSE etc
Dongguan Datapower New Energy Co.,ltd is a high-tech production enterprise which specialize in the R&D and production&sale of lithium polymer batteries,drone battery,airplane batteries &battery pack etc.
Anhui Seong-hee New Energy Technology Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of primary batteries. And mainly produces and sells alkaline batteries & carbon zinc batteries. there are size AA, AAA, C, D, 9V etc
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release time:2024-03-12 Hits: Popular:AG11 battery
Graphene is the thinnest, lightest, hardest, most conductive and highly flexible nanomaterial in the world. Its power is often staggering. A one centimeter thick graphene plate can allow a 5-ton adult elephant to stand firmly on it; a mobile phone battery made of graphene can be fully charged in one second; a tablet computer made of graphene , can be folded into the size of a mobile phone and placed in your pocket.
Since the birth of graphene, people have been very interested in the research and development and application prospects of this new material, making it the darling of capital and market pursuits. It is also widely used in the fields of electronics, aerospace specialties, new energy and new materials, etc.
Qian Weizhong, a professor at the Department of Chemical Engineering at Tsinghua University, and Shi Jidong, a doctoral candidate at the National Center for Nanoscience, participated in the release event as specially invited experts and conducted exchanges and discussions with the participants based on their current research work.
Graphene supercapacitor technology: China in a period of rapid growth
Today's energy and environmental problems are becoming increasingly serious, and there is an increasing demand for the development of green transportation represented by new energy electric vehicles. Solving the problem of its braking energy recovery system is one of the keys to industrial development. Therefore, the industry has an increasingly urgent need for electrochemical energy storage devices that take into account high energy density and high power density. At the same time, supercapacitors have great expectations due to their advantages such as long service life, short charging time, display of stored energy, unlimited materials, and good low-temperature performance.
Graphene has good electrochemical properties, tensile resistance and a structure that is easy to synthesize with other active materials. Similar to activated carbon, it can be used as a good and stable negative electrode material and is gradually being applied to supercapacitor capacitor materials. The main research areas of graphene supercapacitors include: transition metal oxides for electrode materials, activated coal, nitrogen-doped graphene, current collector surface, etc.; involved technologies include graphene oxide monomer, transition metal oxides, nitrogen Doping, coal activation, etc.
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