2019 Porsche Taycan

The 2019 Porsche Taycan comes with a total/gross 79.2kWh or 93.4kWh battery pack

Turbo S Performance Battery Plus

This is the largest battery capacity on offer in 2019 and the highest power.

Specifications:

• total energy = 93.4kWh
• usable energy = 83.7kWh
  • Usable SoC = 90%
• peak discharge power
  • 460kW_10s
• continuous power = 270kW

The 270kW continuous discharge power is based on the charge power and hence the overall system thermal and electrical limits for extended current demand and heating.

• nominal voltage =723 V
• capacity = 129.2 Ah
• voltage range = 610 V to 834 V
• weight [kg] =630kg
  • cells = 355kg
  • cell to pack mass ratio = 56%
• number of cells = 396

• charge time = 5% to 80% in 22.5 minutes
  • 270kW peak charge power
• modules: 33 modules with 12 cells in each module
  • L: 390mm
  • W: 150mm
  • H: 110mm
  • Mass: 12kg
• cooling system
  • water-glycol system that can heat and cool the battery
  • cooling system sits under the main battery structural tub ensuring any coolant leaks cannot enter the pack
  • heat pump based system that allows heat from HV components to be stored in the battery pack
  • cell target temperature is changed based on driving style selection
  • battery is preconditioned to a certain temperature level when the vehicle is connected to the mains for charging

• cell make and model
  • LG Chem E66a
  • Pouch cell format
  • NMC712

Key Pack Metrics:

• Gravimetric energy density, pack = 148 Wh/kg
  • Cell = 259 Wh/kg
• Volumetric energy density, pack = Wh/litre
  • Cell = 648 Wh/litre
• Gravimetric power density, pack = 730 W/kg_10s
• Volumetric power density, pack = W/litre_10s
• Estimated cost = $/kWh
• Cell to Pack mass ratio = 56%
• Cell to Pack volume ratio

Other key features:

• Safety
• BMS
  • master and slave architecture
• HV Distribution
• HV and LV Connections
• Cooling Connections
• Mechanics
  • located in the underbody of the Taycan to ensure a low centre of gravity
  • battery housing is a load-bearing component of the body structure
    • truss-design battery frame with multiple subdivisions
    • 28 bolts fix the battery to the body structure
    • battery contributes ~10% of the vehicle’s overall stiffness
  • cooling elements are glued on underneath the bulkhead plate using heat conductive adhesive
  • steel protective lower bashplate
  • aluminium battery frame design
    • MIG welded battery frame
    • laser welded bulkhead and protection plates

• Sealing
  • waterproof housing is a sandwich construction consisting of a cover at the top and a bulkhead plate at the bottom
  • note: the cooling system sits under the battery pack housing thus ensuring coolant leaks cannot short the HV system
• Venting strategy
• Durability
• Availability
• Recycling
• Shipping
• Warranty
  • 60,000 km or three years if following conditions:
    • Vehicles standing longer than two weeks supposed to be connected to a charger
      • Customers must assure that the Taycan’s state of charge remains between 20% – 50%
      • Customers must make sure that their Taycan is not exposed to continuous sunlight
    • Vehicles standing longer than two weeks not connected to a charger
      • Customers must charge the Taycan’s battery before to 50%
      • Customers must check every three months and assure SoC remains at or above 20%
      • Customers must assure that their vehicle’s temperature is between 0°C – 20°C

Suppliers:

• Pack assembled by: Dräxlmaier
• Cell made by: LG Chem
• Battery case made by: Waldaschaff Automotive

References

1. Porsche Media – Sophisticated thermal management, up to 800-volt system voltage
2. Porsche Media – The Battery
3. FEV Benchmarking of Porsche Battery – video of the pack being disassembled
4. Pontoon-e – detailed look at the engineering of the Porsche Taycan
5. TeslaRati – Porsche Whistleblower

As with all of our benchmarking we update and add to these pages as information becomes available.