FutureFlight
Solithor Joins Forces with Aerostructures Group Sonaca to Develop Pouch-cell Batteries
The Belgium-based companies aim to be ready to test a technology demonstrator with an electric aircraft manufacturer between 2027 and 2029.
Solithor co-founder and chief technology officer Fanny Bardé with an example of the company's pouch cell batteries.
Solithor co-founder and chief technology officer Fanny Bardé with an example of the company's pouch cell batteries. (Image: Solithor)

Battery developer Solithor is partnering with aerospace group Sonaca to engineer solid-state lithium batteries for regional aircraft and eVTOL vehicles. Under a memorandum of understanding signed last week, the Belgium-based companies said they intend to bring to market high-density rechargeable technology that will meet the power and safety needs of the emerging electric aviation sector and also potentially satellite and defense systems.

Solithor, which was formed in January 2022 with just over $10 million in seed funding, will be responsible for research and development, testing, format design, and the production of 10Ah- to 40-Ah cells. Sonaca, which last year earned EASA design organization approval, will develop the battery packaging, including all related management systems, and will also certify the new pouch-cell batteries. The first test cells are expected to be delivered to Sonaca later this year so that systems integration work can begin.