Donut Lab, a Helsinki-based e-mobility startup, has raised €25 million (US$29.3 million) in seed funding to support its modular EV component platform.

Donut Lab’s platform features inter-compatible parts, including battery modules, computer units, and vehicle control software.

The company plans to introduce additional features in 2025 through its international research and development team.

Its proprietary in-wheel Donut Motor eliminates traditional drivetrains and targets automotive, aerospace, marine, robotics, and defense markets.

Donut Lab has signed over ten commercial contracts with original equipment manufacturers (OEMs) across various sectors for its EV technologies.

Additionally, the company announced the establishment of a research and development facility in Chippenham, UK, to support its expansion.

🔗 Source: Tech.eu

🧠 Food for thought

1️⃣ In-wheel motors represent a high-growth niche in the expanding EV components market

Donut Lab’s €25 million seed round comes as the specialized in-wheel motor market is projected to grow from $9.3 billion in 2023 to $150 billion by 2032, representing a 36.2% annual growth rate 1.

This technology eliminates traditional drivetrain components like axles and transmissions, potentially reducing vehicle weight while improving power delivery and interior space 2.

The broader EV components market is similarly expanding, expected to grow from $210.77 billion in 2024 to $439.2 billion by 2029 as manufacturers seek innovative solutions for electric mobility 3.

Donut Lab’s approach aligns with market demands for higher efficiency and performance, with their motor claiming impressive specifications of 630kW power output and 4,300Nm of torque while weighing only 40kg 4.

The technology has already proven commercially viable, as demonstrated by Dongfeng Motor’s launch of the E70 and Voyah Zhuiguang passenger cars featuring in-wheel motors, which achieved 42% faster acceleration compared to traditional AWD models 5.

2️⃣ In-wheel motor technology faces intense competition from established players

Donut Lab enters a competitive landscape where over 720,000 patents related to in-wheel motor drives have been filed in the last three years alone, indicating significant R&D activity in this space 6.

Major automotive manufacturers including Nissan, Hyundai Mobis, and Honda are leading in patent filings, focusing on enhancing power density and efficiency for in-wheel motor technology 6.

Dongfeng’s partnership with Protean Electric began in 2016, giving them several years of development advantage in bringing in-wheel motors to market for passenger vehicles 5.

Established players in the in-wheel motor market include Elaphe, Schaeffler, and Tesla, all continuously innovating to improve motor efficiency and performance 1.

Donut Lab’s strategy to expand beyond motors to include batteries, software, and full-stack EV systems appears to be a differentiation attempt in this crowded market, potentially allowing them to offer more comprehensive solutions to OEMs 4.

3️⃣ Technical challenges remain despite the promise of in-wheel motor technology

Despite their advantages, in-wheel motors face persistent engineering challenges, with unsprung weight being a primary concern that affects vehicle handling and ride comfort 1.

Donut Lab claims to have addressed these limitations with their innovative design, though the effectiveness of their solution will only be proven through real-world implementation across their announced commercial contracts 2.

The high cost of in-wheel motor systems remains another significant barrier to widespread adoption, potentially limiting their initial use to premium vehicle segments 1.

Integration complexity is evident in Dongfeng’s development timeline—their partnership with Protean required extensive testing and homologation processes, including crash impact and durability assessments before commercial launch 5.

For Donut Lab to succeed in diverse applications across land, sea, and air vehicles as they intend, they’ll need to overcome application-specific challenges in each domain while maintaining their claimed performance advantages 4.