The Bolloré Group, through its subsidiary BatScap, introduced an electric vehicle (EV) concept car using new its Lithium-Metal-Polymer batteries at the Geneva Motor Show.The Bolloré group is not trying to become an automaker, but is eager to have its battery technology used in a vehicle.
The new BlueCar with its LMP batteries offers an operating range of 200-250 kilometers (124-155 miles) and a top speed of 135 kmh (84 mph).
A full recharge requires 6 hours; a two-hour rapid charge will recover 50% capacity.
BlueCar has three front seats, and an 810-liter (28.6 cubic feet) storage area in the rear. The vehicle is a mere 3.05 metres long, or exactly the same length as the old Mini. Two fold-up jump seats can also be installed in this area, making the BlueCar a five-seater.
The lithium-metal-polymer cell is a laminate of four ultra-thin materials:
- A metallic lithium foil anode that acts as both a lithium source and a current collector.
- A solid polymeric electrolyte created by dissolving a lithium salt in a solvating co-polymer (polyoxyethylene).
- A cathode composed of vanadium oxide, carbon and polymer to form a plastic composite.
- An aluminum foil current collector.
The ultra-thin films are layered, coiled, then compressed into a prismatic shape and assembled into cells, which are then assembled into modules.
LMP batteries offer advantages such as a much higher energy capacity per unit volume and unit weight, and a very predictable and stable charge/discharge characteristics over varying environmental conditions-all very good qualities for an electric vehicle battery.
BatScap is not alone in providing LMP technology for vehicles or in looking for automakers as partners. Avestor, a subsidiary of a Hydro-Québec, has put its LMP modules into the prototype CleanNova II delivery van for the French Post Office (earlier post).
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