Recent content by BlueSwordM

That will work. Alternatively, if you want to do it quickly, you could acquire an active balancer.

My personal experience is that it's fine as long as your pack charges quickly enough or if you can bruteforce range. To make long trips smoother, just drive a bit slower than you'd expect, use a vehicle that can charge as fast as possible, and preferably map out charging points before the trip...

High silicon anode rearing its head once again. I don't think my heart can take the possibility of getting anywhere near close to the theoretical energy density limit (around 3.3kWh/kg for a full cell). At this point, I'm expecting 700Wh/kg cells to appear next year, 800Wh/kg in 2027...

>Charge -20-70C We're cooking now boys and girls.

Nope. On my end, Grade A for 2500pcs is quite a a bit more expensive than that :)

No, it's just too weak mechanically. Well, it can carry the same amps as a 0.4x8mm nickel strip.

Nope. That was raw 0.1mm copper. However, don't even bother not using a steel/stainless steel/nickel-copper sandwich; 0.1mm copper is far too weak to use in real battery pack.

I should have worded my statement differently. #1 I meant to write pareto-optimal: you get most of the energy density gains with 30% equivalent Si loading. #2 For pure silicides/silicon carbide, the maximum Si loading you can have is around 55% because of their chemical makeup; it is...

Actually, I'm not guessing :) All of the CN phones having 5500-6000-7000-7600-8000mah are using Groupe 14's silicide/silicon carbide anodes. https://group14.technology/resources/press-releases/group14-enters-production-to-power-the-next-generation-of-smartphones-for-atl/ Of course, their Si...

Nope, these aren't solid state electrolyte cells. They're just high Si anode HV LCO cells using silicides as Group14's anode tech (likely silicides since they're the absolute best way to get up to 55% Si loading in anodes).

Something something Alibaba supplier sent me a message that they're now available if I'm willing to pay 15-20% extra than the BAK 45Ds I've been eyeing.

Of course, but there's the corporations' market, and then there's the small business market. I wouldn't be surprised "smaller" companies like FEB prioritize the highest grade cells for those who order 500k+ cells to millions of cells every year, and then we got the "scraps" for a while. But...

Another supplier of the FEB 6000mAh cell did tell me that FEB might have done some naughty things around the cell's release regarding battery grades. Apparently, most of those cells on the market are actually B-grade currently, and only recently have true A-grade cells been a thing; FEB/FST's...

Getting power out of packs usually isn't the bottleneck. Also, those Tesla cars are using active heating to increase power density of those cells, not exaclty fair. The real problem is fast charging and if you can increase cell capabilities, that faster charging is always better.

Apparently, plenty of scooters do use axial flux motors: https://archive.ph/6YIej#selection-1959.0-1959.70 "The worldwide market for the kind of vehicles Lyra is rolling out, first in Indonesia, is massive. In Asia alone, 45 million units are sold every year, and the global market for...