Founded in 2012 as a spin-off from the Fraunhofer Society, CustomCells innovates and industrializes customer-centric premium battery technology, powering the global energy transition for a better future. Based in Itzehoe and Tübingen, the company employs over 200 dedicated professionals and enables customers throughout the entire value chain—from initial concept development to the commissioning of series production facilities.

We specialize in premium battery technology manufacturing at scale, accelerate custom battery development and industrialization, and offer comprehensive services and projects in cell development. As a trusted industry partner of leading automotive and aviation companies, we deliver the full spectrum of customer-centric premium battery technology, enabling the development of next-generation applications, including super sports and racing cars and advanced air mobility vehicles.

Accelerator:As a battery development and industrialization accelerator, we offer a full spectrum of capabilities, combining technical acumen, hands-on experience, and process expertise. Bridging the gap between cutting-edge R&D and high-performance volume manufacturing, we help our partners to accelerate and de-risk cell and process design, prototyping, pilot manufacturing, and serial production ramp-up, positioning them at the forefront of battery technology. Through our customer-centric and integrated approach, from cell design to full-scale production, we ensure enhanced control over pivotal components in the value chain and provide the agility to tap into next-gen premium cell technologies, championing the next wave of battery innovation.

Products:We specialize in high-performance volume manufacturing of modular cell technology. With our advanced modular tech and manufacturing platform, we combine low complexity with high flexibility, ensuring our cells are meticulously tailored to our customers‘ specific needs and preferences. Whether it is power density, energy density, cycle stability, certification and safety, or time-to-market, we fine-tune each aspect to perfectly match performance requirements. With our products, we create specific USPs for our customers, setting benchmarks in the premium segment that few can match. As part of our commitment, we ensure consistent quality, timely delivery, and cost-effectiveness throughout the product’s lifecycle.

Projects & Services:We deliver services and solutions tailored to our customers‘ needs, whether that means spearheading an entire cell development journey or focusing on individual segments of the battery cell value chain as bespoke projects. With a vast experience base from over 2000 projects across diverse industries, we have executed benchmarks for numerous materials, ensured rapid and holistic material sourcing, and provided robust IP protection. Our approach to cell development begins right from raw materials. Our strong supplier network, IP expertise, commitment to ESG and circular economy approaches, and deep understanding of regulation and certification adherence solidify our position as a trusted and reliable partner in the battery technology landscape.

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