3 ms·
LFP has poor energy density compared to LiIon. It's great for static installations (powerwalls etc) but putting in cars, phones, drones etc is a fools errand.
by snovv_crash 6y ago
LFP has poor energy density compared to LiIon. It's great for static installations (powerwalls etc) but putting in cars, phones, drones etc is a fools errand.
- baybal2 6y agoNot so fast: 1. 170wh/kg cells were on the market for a few years (held them in my own hands,) and, allegedly, 200wh/kg cells are to come. 2. The lower gravimetric cell energy density is compensated by lower cooling requirements, higher volumetric density, and bigger maximum cell sizes. 3. LFP survive fast charging, and deep charge/discharge much better, and have more much better cycle life than anything else. This reduces the need in overprovisioning dramatically. All of this translate in quite good battery pack specs, and much lower cost.
- snovv_crash 6y agoAnywhere I can buy these cells? (No, seriously). I haven't found anything despite a fair bit of searching. In comparison, I can order 18650 LiIons with 50% higher energy density right now, in pretty much any quantity or balance of discharge rate vs. capacity I want. BMCs are cheap and easily available. No supply chain worries. If I need to export I just buy in the destination country and build packs there.