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Soon electric cars with an autonomy of 1000 km
At the Fraunhofer Institute, researchers have designed a battery that would increase the autonomy of electric cars by 2020.
Current batteries with the most capacity reach 500 km, a number that varies depending on the battery quality, the roads, the model of the car, the type of driving performed.
Batteries remain a sensitive point for choosing an electric automobile at the expense of a fossil fuel vehicle. Their size remains bulky, their weight remains consistent. The batteries are actually made up of 50% of a material that acts as a protective layer to prevent cells from touching themselves and the battery from catching fire due to thermal overload. But also of connectors, which poses the problem of electrical resistance and therefore of less electric power.
The new battery devised by Fraunhofer Institute and named EMBATT is based on the bipolar principle of fuel cells. The lithium cells would no longer be linked together, in the form of small groups, but would be stacked on top of each other in the form of large plates. With this model, the electrical resistance is reduced.
The researchers believe that it will soon be possible to reach the 1000 km of autonomy thanks to their battery.
To produce the finest bipolar electrode possible, they used ceramic materials, with a metal strip coated with ceramic storage materials.
The first tests on cars are expected for 2020.
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