2021 Mercedes-AMG EQS 53 4MATIC+

Specifications:

Mercedes EQS

The 2021 Mercedes-AMG EQS 53 4MATIC+

The performance luxury electric vehicle offering from Mercedes and part of the Mercedes EQ line up of EV’s.

  • total energy = kWh
  • usable energy = 107.8kWh
  • peak discharge power = 544kW10s 

Peak power is based on 490kW peak motor power published by Mercedes [1] and assuming 90% efficiency, thus 490kW / 0.9 = 544kW

The peak acceleration time for the vehicle and hence we assume battery peak power is only available above 75% SoC [1].

  • continuous power kW
  • peak regen power = 300kW
  • nominal voltage = 396V
  • capacity = Ah
  • voltage range = V to V
  • weight =kg
    • cells = kg
  • volume pack = litres
  • pack dimensions =
    • module =
  • number of cells = 216
    • 108s
    • 2p
  • cell
    • make and model = CATL
    • chemistry = NMC811 [1]
    • Format = prismatic
    • Nominal voltage = 3.67V
    • Nominal capacity = Ah
Mercedes EQS

A flat rectangular pack design that has moved on a generation from the EQA battery. This battery design has 12 modules arranged in a single layer and in a rectangular aluminium pack structure.

  • charge time = 10 to 80% in minutes
    • 300km added to the range of the car in 19 minutes [1]
    • peak charge power = 200kW
  • modules:
    • 12 modules
    • module configuration = 9s2p
  • cooling system = liquid (water-glycol)
    • The aluminium extrusions of the battery frame have defined cavities through which the coolant flows.
  • pack cost =

Key Pack Metrics:

  • Gravimetric energy density, pack = Wh/kg
    • Cell = Wh/kg
  • Volumetric energy density, pack = Wh/litre
  • Gravimetric power density, pack = W/kg10s
  • Volumetric power density, pack = W/litre10s
  • Estimated cost = $/kWh
  • Cell to Pack mass ratio
    • module to pack mass ratio = %
  • Cell to Pack volume ratio
Mercedes EQS

Other key features:

  • Safety
  • BMS
    • The battery management system is also configured specifically for AMG. [1]
    • Safety includes: for example, temperature, voltage or insulation monitoring as a continuously monitoring safety system. If a fault occurs, the battery switches off.
    • Crash monitoring when stationary (during DC charging) is also standard.
  • HV Distribution
    • One special technical feature is the AMG-specific wiring, which is adapted to the high performance capacity. [1]
  • HV and LV Connections
    • All connections to the battery are made at the rear of the pack on the bump in the top of the case that accommodates the HV control system.
  • Cooling Connections
  • Structure = non-structural pack
    • The battery sits in a crash-protected area in the underbody, embedded in the body shell structure including an extruded aluminium profile on the side.
    • The housing with energy absorbing structures at the front and side as well as a rigid, double-walled base plate provide additional protection for the modules.
  • Case material
    • Aluminium, aluminium extrusions.
  • Sealing strategy
  • Venting strategy
  • Durability
  • Warranty
    • 250,000km or 10 years [1]
    • certificate also covers capacity loss
  • Availability
  • 4R’s
    • After use in the vehicle, a second lease of life is possible for batteries: For example, in an energy bank operated by Mercedes-Benz Energy GmbH.
  • Shipping
Mercedes EQS battery production

References

  1. All-electric Driving Performance in a luxurious ambience: The new Mercedes-AMG EQS 53 4MATIC+ with battery-electric drive – Mercedes

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