A New Approach to Car Batteries Is About to Transform EVs.
By Mark Andrews
WEIGHT IS ONE of the biggest banes for car designers and engineers. Batteries are exceedingly heavy and dense, and with the internal combustion engine rapidly pulling over for an electric future, the question of how to deal with an EV’s added battery mass is becoming all the more important.
If you want to build an EV with better range, slapping in a larger battery to provide that range is not necessarily the solution. You would then have to increase the size of the brakes to make them capable of stopping the heavier car, and because of the bigger brakes you now need bigger wheels, and the weight of all those items would require a stronger structure. This is what car designers call the “weight spiral,” and the problem with batteries is that they require you to lug around dead weight just to power the vehicle.
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