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Chinese Developed Super Battery Charging 7 Seconds To Run 35 Kilometers
Shezhen Viwipow Electronics Co.,Ltd | Updated: Dec 12, 2016

Chinese developed super battery charging 7 seconds to run 35 kilometers 


 Tiger sniffing network (Beijing) share: 2611 China developed super battery charging 7 seconds to run 35 kilometers before the day, Xinhua News Agency issued a let electric vehicle manufacturers feel the excitement of the message, the message said: "the Chinese Academy of Sciences Shanghai Silicate Institute scientists successfully developed a high performance supercapacitor electrode materials, ordered mesoporous nitrogen doped graphene." and said, "this material has excellent electrochemical properties can be used as electric vehicle can," super battery charging ": only 7 seconds, endurance 35 km. It is reported that the relevant research has been on the 18 day the world's top academic journals published in . It sounds like very powerful, but don't get excited about the new materials and application, there are a few things you need to know. Perhaps the super power Can we fly with? So-called super capacitor, introduced: "is a kind of electrochemical storage between conventional capacitors and batteries. The device has high power density, long cycle life, safety and reliability, has been widely used in hybrid electric vehicles, a number of areas of high power output equipment." and so on, since so much? Why readily search, most of the electric vehicle mainly uses the battery? Such as Tesla's lithium battery (mostly), TOYOTA Prius NiMH batteries. Because of the super capacitor energy density is too low. Low energy density means meet capacitance the volume of the actual demand will be very large. But as the report said, to find the ideal material, the super capacitor has high function, high energy, the scientists are the direction. According to the science article shows that this Some of the new material, can achieve the energy density of lead-acid batteries in the 41wh / kg function and good, is indeed a little progress. But in practical terms, Tesla for example, the Tesla Model s is used in 18650 from Matsushita Battery, its energy density 233wh / kg, and a Tesla Model s battery, weighing 900 kg, Qiazhiyisuan, carrying more than 5 thousand kilograms of battery run up, seem to feel or not so good. In fact, now the super capacitor in electric vehicles are used for battery dependent, play a supporting role. The second charge this thing, in fact, fast charging and discharging, has always been a big advantage of the super capacitor, but the energy density if the problem cannot be solved, it just sounds very beautiful. It is worth mentioning that, in the science article, can not find "charging only 7 Second, relevant data can be 35 km life ", I do not know this information come from. Graphene or graphene like carbon materials?? the article will be Shanghai Portland developed a new material called" mesoporous nitrogen doped graphene Kong Shimo ", but in fact, < science> article no, and said he is using graphene, may be more appropriate expression of graphene like mesoporous nitrogen material. In fact, in recent years, a lot of similar reports, what" a new generation of super capacitor with a few minutes can run 500 kilometers, almost know there are a lot of "how to evaluate" XX developed a new battery charged minutes! "This news?" every time related research has been out, always lead the news industry stakeholders burst of excitement, but how far is it from research to production using distance? Know a classmate of this new material The answer or worth thinking. Below is taken from known: breakthrough performance in the laboratory, but said it is too early in the industrialization of carbon based materials for supercapacitor, the nitrogen doped, the ordered mesoporous carbon materials with electrochemical activity, with pseudocapacitor working ability, and achieve the lead-acid battery. 41wh/kg on the energy density, power is to maintain a consistent advantage of super capacitor. In this paper a detailed characterization of the electrochemical properties of the material, in different kinds of electrolyte working ability, reaction mechanism and so on, here I also not detailed one by one, in short, that it is in the field of super capacitor, to achieve a breakthrough it is no exaggeration to say. But it wants practical? I have a few questions. (1) the use of the cost in preparation of the 1 is the typical template method using SiO2 template, then CVD with CH4 and NH3 as carbon and nitrogen sources, long. The material, with hydrofluoric acid corrosion template, a material, not only that, even after the treatment by concentrated nitric acid, increase the nitrogen content. You know the process of production materials are more expensive? Do you know the process of production materials are more expensive? Do you know the process of production materials have important things expensive? To say three times. In fact, the SiO2 template to produce the material, yield is not high, there is a certain template preparation cost. Then the preparation of CVD materials, if your material is on weight rather than on the area of production, the cost of a properly drunk rhythm; even after with highly toxic hydrofluoric acid the corrosion protection cost of dangerous things, how we think, finally there is a concentrated nitric acid treatment, it must be very well. EIA had difficulties. In this technology is very common in the lab, so there is no problem, but if it is practical that tomorrow, well, Dreaming. Of course, the author also said they also used relatively more economic (inexpensive) technology, is probably not a direct template, sol gel, and then the CVD problem is: sol gel synthesis. The industry is not what a bargain, then still use CVD... You cost. Is not competitive. Here, a lot of people may not be convinced, that the sour grapes, with the development of technology cost problem can be solved. But I want to say is, the key is to see what the old system is a new technique for you to replace the original technology: if it is a expensive. The technology is expensive to the point that you are to say; but if the substitution is very cheap mass production of the existing (these kinds of carbon material), even if the new product performance you really have to be honest leap. The economic accounts, then the action of R & D investment expansion what, is definitely not deceptive. (2) the use of the process, the electrode system is the active material with a compressible foam (graphene do collector) pressed together, no additive, pole piece made use of visible. Is not the traditional metal collector. In fact, 3D graphene foam has large surface area, and bring good three-dimensional conductive network, use this experience to collecting materials to bring a lot of addition, the Institute of metal Cheng Hui Ming academician group can refer to a lot of work. So the big question here is: why not use traditional fluid, but the use of graphite foam to test the electrical properties of the material? If the traditional collector, measured performance will have greater reference value (3) compared to the whole? The positioning China developed super battery charging 7 seconds to run 35 kilometers while our reporters have set a "full 7 seconds to run 35 kilometers" as the material, but I think we should look at the prospects for their own work. For the application of super capacitor, the author used a word meaning, called potentially can and batteries. So the author didn't say it must first make the battery and fight hand to hand with well, the capacitance in the field of boss is actually a more practical. And finally this can match with lead-acid, nickel metal hydride evaluation, finally comes to lithium ion, the author very objective used a word: perhaps. at least we can think so, if it wants to replace the lithium ion, harder than before several larger. So in fact the positioning of the capacitor is very clear. (4) the research of vs industry Some friends here also said, do the things in the laboratory often take a long time to industrialization, and some even as for the technical route by technical factors, will never be industrialized. I never consider no quasi scientific research is not important, but I think the state should intensify efforts to support those who can scale, have the prospect of the industry, this is the industrial upgrading, stronger Chinese manufacturing way, so I also look forward to the technology can scale earlier, can make large quantities of high consistency, reliability, performance and cost competitive products. So everything will be how to develop, let us wait and see. PS: charging for 7 seconds to run 35 km, I feel this figure is very interesting, or 7 digits. Well, a second run 5 kilometers, if the household electric cars in general, once the electricity to run 7~8 We have 10 kilometers, according to calculate, 1 seconds charge to 0.5 degrees, 1kwh=3600kws is the power of 1800kW, well, not burn strange. To summarize, the new materials of the Chinese Academy of Sciences is indeed a major breakthrough, but from the laboratory to the factory to the market there is still a long way to go.

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