Mercedes-EQ Battery Systems Production: Stuttgart-Hedelfingen plant
The Mercedes-EQ starts the battery systems production in Stuttgart-Hedelfingen plant for all-electric luxury EQS.
The EQS marks the start of a new generation of high performance electric vehicles and will offer-a range of more than 700 km (based on WLTP), based on a high efficiency powertrain and advances in battery energy density. Having integrated battery production seamlessly alongside existing transmission production, the Hedelfingen plant has been transformed into an important part of the company’s global battery production network. The quick ramp-up of its global battery production capacities and targeted expansion of battery competencies through the entire value chain are the key pillars of Mercedes-Benz electric initiative - from basic research, cell production up to batteries’ afterlife including 2nd-life applications and recycling.
The Hedelfingen plant, as part of the Mercedes-Benz Untertürkheim location (Germany) is responsible for the production of battery systems for the Mercedes-Benz EQS, as well as the upcoming EQE. The plant has a production and logistics area of about 16,500 m², relying on state-of-the-art systems including a wide range of Industry 4.0 technologies. The highly complex lithium-ion battery system is produced on an approximately 300 meter production line with more than 70 production stations and with a high number of automated as well as manual steps. A variety of components including up to 12 cell modules and the so-called EE-compartment for the intelligent integration of power electronics make up the EQS battery system.
The EE-compartment is assembled by the Mercedes-Benz Berlin site.
The EQS will be equipped with battery layouts enabling different range and performance variants. With an installed energy content of up to 108 kWh, the EQS targets, according to WLTP a range of more than 700 kilometres, aided by best-in-class aerodynamics. The in-house-developed software technologically enables updates over the air (OTA), ensuring that the energy management of the EQS will remain up-to-date over the entire lifetime of the vehicle. Besides its CO2-neutrally produced cells, the EQS battery cell chemistry includes nickel, cobalt and manganese in a ratio of 8: 1: 1, cutting the cobalt content to around ten percent.
Production plays a decisive role in the sustainability understanding of Mercedes-Benz AG. The EQS is produced alongside the new S-Class at the “Factory 56” in the Sindelfingen plant, which operates CO2-neutrally from the beginning. As early as 2022, the company’s own Mercedes-Benz passenger car and van plants worldwide and thus also the Hedelfingen plant will operate CO2-neutrally.
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