Guoxuan: We have reached 0,212 kWh/kg in our LFP cells, we are going further. These are NCA/NCM sites!

The Guoxuan Chinese boasted that they had entered a zone previously occupied only by lithium-ion cells with cobalt-containing cathodes. The company said it was able to achieve an energy density of over 0,2 kWh / kg in a new lithium iron phosphate (LFP) sachet cell.

LFP cells - one day "too weak" becomes "good enough"

Lithium iron phosphate cells have many advantages: they do not use cobalt, so they cheaper than cells with cathodes containing this element. Moreover, they less flammable when damaged and withstands thousands of charging cycles... They also have one major drawback: they offer a lower energy density than NCA / NCM cells because they are below 0,2 kWh / kg, while NCA / NCM has exceeded 0,25 and is approaching 0,3 kWh. / kg.

At least it has been that way until now.

The Chinese company Guoxuan, which currently supplies LFP cells to the Chinese market, reports that it has succeeded in creating lithium iron phosphate cells in sachets (photo) with an energy density of 0,212 kWh/kg. It's not over yet, the company wants to reach 2021 kWh/kg in 0,23 and up to 2022 kWh in 0,26, which is already a value next to the NCA/NCM cells.

The manufacturer also boasts of using jelly-roll-to-module technology, which, as the name suggests, allows using groups of cells as modules, without additional enclosures. However, the photo does not show that the link provides such an opportunity. If so, then it must have some kind of "comb", a metal frame attached to the long edges of the sachet, at least we think so.

You won't see anything like this (source):