Guoxuan unveils a cobalt-free LFP pouch battery cell with 212 Wh/kg

Guoxuan unveils a cobalt-free LFP pouch battery cell with 212 Wh/kg
Guoxuan unveils a cobalt-free LFP pouch battery cell with 212 Wh/kg

Guoxuan is a Chinese battery cell maker known for producing the most energy-dense cobalt-free LFP (LiFePO4) battery cells.

Late last year this manufacturer reached a record-breaking energy density of 212 Wh/kg for a LFP battery cell, made with a LFP cathode and a silicon anode. Now, Guoxuan is providing more details about this pouch battery cell.

 

Battery cell specs

  • Capacity: 55 Ah
  • Voltage: 3,2 V
  • Energy: 176 Wh
  • Weight: 830 g
  • Energy density: 212 Wh/kg

 

Moreover, Guoxuan has the goal of reaching 230 Wh/kg already during this year and 260 Wh/kg in 2022.

 

Guoxuan’s LFP battery cell evolution

  • 2009: 95 Wh/kg
  • 2015: 140 Wh/kg
  • 2019: 190 Wh/kg
  • 2020: 212 Wh/kg (191 Wh/kg at pack level with JTM)
  • 2021: 230 Wh/kg (207 Wh/kg at pack level with JTM)
  • 2022: 260 Wh/kg (234 Wh/kg at pack level with JTM)

 

 

Being an inherently safe battery chemistry, battery packs made with LFP (LiFePO4) cells don’t require much safety equipment, such as metal firewalls between cells or a complex TMS (Thermal Management System). This means that the GCTPR (gravimetric cell-to-pack ratio) for this battery chemistry is higher than what we have with NCM or NCA battery packs.

Guoxuan uses the JTM (Jelly roll-to-module) technology to achieve a record-breaking GCTPR of 90 %.

 

Let’s see what kind of battery packs can we have with the battery cell recently unveiled by Guoxuan.

 

Hypothetical battery pack 1

  • Configuration: 136s1p
  • Energy: 23,9 kWh
  • Weight (cells): 113 kg
  • Weight (pack): 125 kg (estimated from a GCTPR of 90 %)
  • Cost: 1.915 euros (estimated with 80 euros per kWh)

 

Hypothetical battery pack 2

  • Configuration: 136s2p
  • Energy: 47,9 kWh
  • Weight (cells): 226 kg
  • Weight (pack): 251 kg (estimated from a GCTPR of 90 %)
  • Cost: 3.830 euros (estimated with 80 euros per kWh)

 

Hypothetical battery pack 3

  • Configuration: 136s3p
  • Energy: 71,8 kWh
  • Weight (cells): 339 kg
  • Weight (pack): 376 kg (estimated from a GCTPR of 90 %)
  • Cost: 5.745 euros (estimated with 80 euros per kWh)

 

Considering that Volkswagen is the biggest stakeholder of Guoxuan, we might see the German automaker adopting this technology soon.

 

 

More info:

https://www.d1ev.com/kol/135813

https://www.gg-lb.com/art-42082.html

Pedro Lima

My interest in electric transportation is mostly political. I’m tired of coups and wars for oil. My expectation is that the adoption of electric transportation will be a factor for peace and democracy all over the world.