3 ms·
The energy required to move increases with mass. More energy, more pollution. We want more efficiency, not less. More mass also means collisions are higher ene
by robbedpeter 5y ago
The energy required to move increases with mass. More energy, more pollution. We want more efficiency, not less.
More mass also means collisions are higher energy, so crash and pedestrian safety become an issue at lower speeds.
The tradeoffs have to justify the extra weight, so money saved on batteries has to exceed money spent on stronger frames, etc. I think Tesla is playing at the edges, so it's probably safe to say inefficient (heavier) batteries aren't going to be feasible.
- panick21_ 5y agoBy that logic people now wouldn't use LFP. Demand is huge, and a slightly bigger/heavier battery is totally acceptable if the battery can be cheaper. The reality is it is better to produce more EV even with batteries that are not at peak density specially if they are cheaper. As I pointed out, Sodium could get reasonably to LFP. So just as we moved from NMC to LFP, we will move from LFP to Sodium. That doesn't mean NMC or LFP will go away. All of the above are needed.