Скачать или смотреть Battery Discussions: Power Density

I wanted to take some time to discuss a topic that I feel is not talked about enough or fully understood by the average EV fan, and that is power density. The idea that a certain volume or weight contains a certain amount of energy is relatable for most people, so energy density is an easy concept to communicate.

Power density (the amount of power a particular battery is capable of outputting per volume or weight) is a little harder to relate to. To make matters worse, a number of EV journalists have focused almost exclusively on battery thermal management as the limiting factor determining both maximum power and maximum charging speeds for many EVs. The issue, though, is that thermal management is only a small factor governing maximum power and maximum charging speeds. Power density (a metric that is easy to determine) is much more significant.