Samsung SDI strengthens EV battery partnerships with Mercedes-Benz

Summary

• Partnership expansion: Samsung SDI is deepening its collaboration with Mercedes-Benz for EV battery supply.
• Technology focus: The partnership involves advanced nickel-cobalt-manganese (NCM) battery chemistry aimed at improving energy density and performance.
• EV roadmap alignment: Batteries are expected to support Mercedes-Benz’s upcoming electric vehicle platforms, including next-generation architectures.

SEOUL, April 20, 2026 — Samsung SDI is expanding its role in the global electric vehicle supply chain through a strengthened partnership with Mercedes-Benz.

The companies have an ongoing supplier relationship, and recent developments indicate closer collaboration as Mercedes-Benz accelerates its transition toward electrification.

Building on existing partnerships

Samsung SDI already supplies battery cells to multiple global automakers, including premium European brands. Its relationship with Mercedes-Benz is not entirely new, but the latest developments suggest a deeper integration aligned with future EV programs.

Claims that this is the first-ever deal or that it completes a “German trifecta” are not fully accurate, as supplier relationships in the auto sector are typically multi-layered and evolve over time.

Focus on high-performance battery chemistry

The collaboration centers on advanced NCM (nickel-cobalt-manganese) battery technology, which is widely used in premium EVs for its higher energy density compared to alternatives like lithium iron phosphate (LFP).

While high-nickel (>90%) chemistries are being developed across the industry, specific technical thresholds and exclusivity claims are not publicly confirmed.

Supporting next-generation EV platforms

Mercedes-Benz is investing heavily in dedicated EV architectures, including platforms designed for compact and mid-size electric vehicles.

Samsung SDI is expected to be one of several suppliers contributing to these future programs, alongside other global battery manufacturers, as automakers diversify sourcing to reduce supply chain risks.

Why this matters

• EV supply chain diversification: Automakers are increasingly working with multiple battery suppliers to ensure stability.
• Technology competition: High-nickel chemistries remain key to improving EV range and performance in premium segments.
• Strategic partnerships: Collaborations between automakers and battery firms are becoming central to the EV transition.

FAQs

Q1. Is this Samsung SDI’s first deal with Mercedes-Benz?

No. The companies have had prior supply relationships; this reflects an expansion rather than a first-time agreement.

Q2. What type of batteries are involved?

Primarily NCM-based lithium-ion batteries used in high-performance EVs.

Q3. Will Samsung SDI be the exclusive supplier?

No. Automakers typically work with multiple suppliers to manage risk and scale production.