RML Group's VarEVolt battery pack is currently powering electric hypercars. (Image credit: RML Group)
A British company has received approval to mass-produce an electric vehicle (EV) battery with extraordinary power density that can be fully charged in just 18 seconds.
On June 2, RML Group received a certificate of conformity for its VarEVolt battery. This government approval allows the company to begin mass production of high-power batteries for electric vehicle manufacturers.
“The certification confirms our readiness to move from prototyping and limited-edition production to supporting larger production contracts,” said James Arkell, director of powertrain at RML Group.
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RML's battery pack is capable of delivering a lot of power in a short time. The VarEVolt battery pack can generate 6 kilowatts per kilogram and is capable of “throwing out all its energy very, very quickly,” RML board member Michael Malloch told Autocar magazine. The battery pack has a C rating of 200, meaning it can be fully charged or discharged in about 18 seconds.
By comparison, the battery in the all-electric Porsche Taycan has a C rating of around 4-5, requiring 12-15 minutes to charge or discharge.
VarEVolt's modular architecture allows manufacturers to tailor it to different applications. “We can focus on range, we can focus on power, or we can balance the two,” depending on the type of vehicle it will be used in, RML Group CEO Paul Dickinson told Autocar.
Superfast charging for superfast electric vehicles
Several smaller manufacturers are already using the VarEVolt battery; it helps power the futuristic Czinger 21C hybrid hypercar, which is based on a combination of an electric motor using energy stored in the battery and a gasoline-powered internal combustion engine.
RML currently produces a limited number of VarEVolt batteries at a time, but in the future, mass production won't necessarily be limited to exclusive products like the 21C. (Czinger only produced 80 luxury sports cars in its first attempt.)
The company is developing a kit to replace the batteries of older hypercars like the LaFerrari or McLaren P1 with updated versions, Malloch said.
“For these cars we can create a plug-in unit that will significantly increase the range, and if the rest of the car's hardware allows it, you could have a version that has eight times the power output,” Malloch explained to Autocar.
Sourse: www.livescience.com
