Guoxuan semi-solid state batteries prepared for mass manufacturing

Guoxuan semi-solid state batteries prepared for mass manufacturing


The Chinese language battery maker partly owned by Volkswagen, Guoxuan, also referred to as Gotion Hello-Tech will begin mass producing its first era of semi-solid state battery cells later this yr.


Let’s see some particulars of Guoxuan’s first era semi-solid state battery packs.


  • Gravimetric power density on the cell degree: 360 Wh/kg
  • Gravimetric power density on the pack degree: 260 Wh/kg
  • GCTP (gravimetric cell-to-pack) ratio: 72 %
  • Capability: 160 kWh
  • Vary: 1.000 km
  • Cathode chemistry: NCM


Contemplating that it nonetheless requires some cobalt, it doesn’t appear to be a cost-friendly battery know-how for the plenty. Furthermore, the poor GCTP ratio of 72 % makes the battery pack much less spectacular, which means that this know-how nonetheless requires quite a lot of passive materials to work correctly.

Nevertheless, Guoxuan says that its second era of semi-solid state battery cells will attain 400 Wh/kg and shall be significantly safer, which implies that much less passive materials shall be required to guard the pack.


Then again, module-less battery packs made with super-safe LFP (LiFePO4) cells are already a lot less complicated and might obtain a GCTP ratio of 90 %, requiring solely 10 % of the load in passive materials to assemble and defend the pack.


Sadly, Guoxuan additionally introduced its new roadmap for LFP battery cells and the aim of reaching 260 Wh/kg is now delayed till 2030…


Gotion LFP cell power density roadmap


Anyway, probably the most power dense LFP battery cell that Guoxuan can now mass produce produce is 47 Ah and weighs 710 grams (210 Wh/kg), which interprets to 180 Wh/kg on the pack degree. The official GCTP ratio of the JTM (jelly-roll to module) know-how is now confirmed to be 86 %, not 90 % as beforehand introduced…

I’m not a giant fan of the JTM know-how – that also makes use of pouch cells and modules -, however utilizing lengthy prismatic blade battery cells most likely isn’t an choice for Guoxuan but, since they gained’t be suitable with Volkswagen’s present MEB platform.



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September 2022