this post was submitted on 30 Jan 2025
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Technology
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The safety thing is 100% true but only part of the picture.
E-bikes don’t need maximum energy density because they’re not gonna be used for long trips and are significantly lighter than cars and trucks.
China has many, many more electric vehicles than any other country and a ton of electricity production to run them. At some point it’s gonna become important to save the lithium batteries for the stuff that needs that high density power.
Maybe these better chemistries that will replace lithium are just around the corner. I certainly don’t count unhatched chickens.
Actually, ebikes need energy density the most. They tend to not have fast public charging. A lighter ebike has huge advantages, if only for maneuvering a couple of stairs or over a log, but also in suspension and handling + a huge difference in range/acceleration.
For an EV, you don't need "race car" performance, and heavy chemistries are ok. Bike performance just gets a huge boost from relatively minor cost to improve weight/range and performance.
EV’s already weigh more than most of their ICE equivalents. I don’t think we want even heavier chemistries in them. You could reduce the battery capacity to keep the weight down but then it’s a double hit to range.
Heck a Model S weighs more than a fair number of F150’s on the road.
Model S: 4,323-4,960 lbs
F150: 4,021-5,540 lbs