Good news for electric car enthusiasts: A company in Germany is developing a new type of batteries, more compact, and capable of offering up to 1,000 km (620 miles) of autonomy.
Duplicating the energy density of batteries used by electric cars in order to guarantee autonomy to 1000 km is the final objective of the Mobile Energy Storage Systems project, carried out by the German organization Fraunhofer-Gesellschaft. Which, for that, has conceived a new type of battery – ultra compact, composed by sheets of paper layers type and with much greater capacity of storage of energy.
According to project director Mareike Wolter, this new type of batteries will allow, even that for now just in theory, that a Tesla Model S, for example, can reach up to a total of 1,000 km, instead of the current 540 km, Using a battery pack with exactly the same dimensions as the current ones. The solution, based on the declarations of the same source, is from a new design of batteries, where there is no place for inactive components.
These batteries do not need the structures that usually involve each of the individual batteries, by assuming a thin form like a sheet of paper, rather than a cylinder. “Its metal sheet is coated with an energy-absorbing material made of powdered ceramic mixed with a polymer paste. One part serves as a cathode, while the other part is anode”, explains Wolter.
Researchers have also accumulated several of these bipolar electrodes on top of each other, such as sheets in a ream of paper, separating them with thin layers of electrolytes and a material capable of preventing electrical discharges from affecting the system.
The stack is then sealed within a casing measuring about one square meter, the top and bottom contacts of which emerge connected to the car’s electrical system. The goal is also to achieve a battery pack that, although offering a range of 1,000 km, fit in the same space that today’s batteries use in any electric vehicle, whether Tesla or another. “In this way, we have been able to store more electrodes for energy storage, without increasing the space occupied,” promises the researcher.
The German researchers have been working on this solution for three years, all pointing to the possibility of testing with a prototype in 2020. All is left now is to wait – eagerly – for the validity and feasibility of this innovative solution.