3 ms·
> $200/KwH seems reasonable vs $100/KwH if it lasts more than 2x as long as a product of similar other specs I think that's highly dependent on the expected li
by dns_snek 2y ago
> $200/KwH seems reasonable vs $100/KwH if it lasts more than 2x as long as a product of similar other specs
I think that's highly dependent on the expected life of those cells in absolute terms. If I'm buying a consumer product and a $100/kWh battery cell will last 10 years, but a $200/kWh battery cell will last 20 years, I'll go with the $100 one every time.
Why? Because in 10 years, with inflation and advancements in battery technology, I'll probably be able to buy a replacement 10 year battery for $40 in today's money, for a total of $140 instead of $200. I'm also lowering my risk exposure in case something happens to the battery, it only needs to survive 10 years instead of 20.
*Exact figures made-up on the spot.
- fragmede 2y agoUsing actual numbers, if your cellphone battery lasts 2 years of nominal use before noticable degrading, you're looking at 4-10 years, but also contributing less e-waste to the world.
- throwaway81523 2y agoI doubt cell phone batteries are a significant part of the battery waste stream, compared to EV and utility scale batteries. If they only went back to phones with easily swappable batteries and used a commodity form factor, most users would probably prioritize energy density over cycle life.