Rechargeable batteries of electric vehicles and other key technical issues still need time to resolve
The 63rd International Motor Show in Frankfurt, Germany September 17 of 27 other inmates. Shortly after the global financial crisis, the global economy has not referred the case, the current car exhibitors have introduced ecological features exhibitors highlights of new energy vehicles, most attention is the introduction of different styles of electric vehicles.
The concept of electric vehicles from 20 years there, and people look forward to the arrival of electric vehicles for both as soon as possible, but how, since the electric car to enter the houses of ordinary people at this show Frankfurt Motor still do not see a specific date.
Germany, Volkswagen AG Board of Technical Director Wally Chiha Ken Beige, said in response to the investigation of a journalist should further 20 to 30 years, a large number of electric vehicles can travel on the road during this period, engineers cars need electricity to constantly improve the car. At the auto show today, well-known carmakers such as Mercedes-Benz, BMW, Volkswagen, Citroen, Peugeot and thus launched their own electric car, but it is the model show car, not having been able to mass-produced car stereotyped. Model cars and trucks the biggest difference is that the shape, model cars may not take into account manufacturing costs, or even life, and for shaping a car, the cost and hope to life are the two most important, if the market is simply unacceptable.
Currently affecting the electric car to enter the market or technology, but off the main factors, the most critical is the performance of rechargeable batteries. According to automobile experts, is now mostly rechargeable batteries in the vehicle driving condition high speed, not take a few minutes, the battery is depleted, it is also not competent to travel long distances on road. International best performance of the weight of the rechargeable lithium battery of about 10 kilograms per kilowatt-hour to drive one like QQ mini-car, you need 16-20 hours of kilowatts of electricity, which makes the size corresponding rechargeable batteries and the weight is great, the cars must carry the additional weight of 160-200 kg of lithium batteries, which power expressed in terms of fuel energy represents only 2 gallons of gas! Some manufacturers make their electric cars can travel hundreds of miles on a single charge, in fact, this is only the road at low speed in urban areas, but they must be in electric vehicles, under a ideal working environment such as temperature can not be too high or too low, the vehicle can not be opened air conditioning.
Impeding the development of electric vehicles, another factor is the cost of rechargeable 40Y6797 batteries. Currently, a 20 kilowatt-hours cost of lithium batteries of about 2 million euros, if the production of such a cell can be mass, of course, the cost can be reduced by at least 1 / 3 .These are what the car manufacturers want. The battery must be to further increase the current level of performance, three times the price cut 2 / 3, it was possible to have the competitive market. Japan Toyota Motor Corporation in the development of electric vehicles is probably the most famous, he invented and used the so-called hybrid engine technology, i.e. fuel engines with electric motors, so that the volume of VGP-BPS2B batteries can be smaller. Is one of these hybrid vehicles, when traveling about 20 kilometers, the rechargeable battery will run out of power? At this time-fuel engine will be a prompt start and the road will be part of the energy converted into electrical energy to recharge the batteries. Toyota hybrids sold in the market of nearly 1 million, but strictly speaking it is not one hundred percent electric vehicles.
The history of development of electric vehicles in Europe and the United States and Japan are equivalent, but the actual sale of electric vehicles on the market are also minimal, at least in Germany, many automakers such as Volkswagen, Mercedes-Benz BMW had no formal marketing of electric vehicles. These vehicles each year at Salon International de l’Automobile will launch new models of electric cars, but they are essentially the propaganda image. For example, the Frankfurt auto show, Mercedes-Benz introduced the E series of 392 kilowatts of power electric sports car, Audi R8 has also launched the largest range of electric vehicles. Both cars use the technology to third generation hybrid, the plug-in hybrid-technology, this generation of hybrid technology, the battery have been through an external plug-in, and completely in some way to use electricity led to the depletion of energy post will automatically be converted into motor fuel.
The automaker next step is to develop no motor fuel, the full meaning of the electric vehicle. The key to reaching 100% electric vehicles is to the extent that the rechargeable battery technology, the need to make greater inroads.