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Not if you’re battery-limited in performance. An ideal performance electric car is all battery and motor with the weight of everything else reduced as much as p
by Robotbeat 7y ago
Not if you’re battery-limited in performance. An ideal performance electric car is all battery and motor with the weight of everything else reduced as much as possible. That naturally means your battery will be way over-sized compared to a typical electric car.
Electric batteries are power-limited as well as energy-limited. So if you want more power, you need a bigger battery. (Alternate chemistries are also possible, but even then you reach a practical limit.)
The naive approach is to think of a battery like a gasoline tank, whose size and capacity you want to minimize if you’re going for performance records. But really it’s part of of the powertrain, and having a larger battery brings a bunch of other benefits like longer lifetime (in miles driven), charge & discharge speed (in kilowatts), higher thermal mass (can handle those big spurts of power that might temporarily exceed the cooling system’s capacity), and higher electrical efficiency at a given discharge speed (a larger battery at a given voltage has lower internal resistance, thus less resistive losses and less heat generation).