How EVs Could Be Improved to Cope with Temperature Extremes
A typical lithium-ion EV battery consists of a positive cathode, a negative anode and a liquid electrolyte that facilitates the movement of lithium ions. This design works optimally when temperatures are between 68–86 degrees Fahrenheit; lower temperatures tend to slow down lithium ions in the battery and lead to lower performance. As temperatures become colder, charge-carrying lithium ions find it harder to travel through the electrolyte. This results in slower recharging rates and can cause batteries to lose charge faster; it can also cost batteries up to 30% of their range. Colder temperatures also often result in long wait times…
