2020 Rimac Nevera

The 2020 Rimac Nevera is a tour de force as an electric vehicle.

The all-electric Rimac Nevera is officially the ultimate record-breaking hypercar, setting a new 0-400-0 km/h (0-249-0 mph) benchmark on the same day that it set another 22 acceleration and braking records.

The form of this battery is complex, however, this is a hypercar that can afford an expensive battery pack design.

• Usable Energy = 106.8 kWh (120 kWh total)
  • SoC Window = 89%
• Nominal Voltage ~ 630V
  • Voltage Range = 731V to 435V
• Nominal Capacity ~ 192Ah
• Configuration = 174s40p
• Maximum Power = 1408 kW_10s
  • Maximum Regen = 300kW

• Pack Mass = 727 kg
  • Cell Mass = 487.2 kg
  • Pack-Cells = 239.8 kg
  • Cell to Pack Ratio = 67%

Pack Mass: Rimac claim that the cell to pack mass ratio of the Nevera is 67% [1]. They also state that it uses 6960 21700 cells and we know that these weigh 70g each +/-1g. Hence we have total cell mass = 6960 x 0.07 = 487.2 kg and knowing the 67% cell to pack ratio we then have a pack mass = 487.2 / 0.67 = 727 kg

Cooling

• Liquid Cooling
• Flow rate = 60 litres/minute
• Cooling plates are used to cool the top and bottom of the cells [4]

There are a lot of connections in this cooling system both inside and outside the pack.

This post has been built based on the support and sponsorship from: About:Energy, AVANT Future Mobility, Quarto Technical Services, TAE Power Solutions and The Limiting Factor. 

Charging

• Maximum charge power = 500 kW

Cell

• Format = 21700
• Cell weight = 0.07 kg
• Capacity ~ 4.79Ah
• Total number of cells = 6960

Metrics

• Pack Gravimetric Energy Density = 165 Wh/kg
• Pack Gravimetric Power Density = 1937 W_10s/kg

References

1. Rimac Is Working On More Energy-Dense Battery Packs, CarScoops
2. Rimac Nevera sets 23 Performance Records in a Single Day, Rimac Newsroom
3. Battery Technology, Rimac
4. Nevera RIMAC Battery Module Details and Analysis, Orovel

See also: Rimac, Benchmarking Battery Packs