Jointly anchoring the battery electric-vehicle (BEV) industry, ProLogium, a Taiwan-based energy innovation company, together with Croatian Rimac Technology, announced the launch of a battery pack mock-up concept on Monday in Paris.

The announcement comes nearly a year after the two technology giants signed a Memorandum of Understanding (MOU) in September 2025 to develop a next-generation battery platform.

The prototype of the design concept, slated for further testing in-lab, in-vehicle, and on-road, will be showcased at the 2026 Paris Motor Show, the company said in a press statement.

According to the statement, ProLogium is building cell technology that is focused on a cell-to-pack (CTP) architecture for pouch batteries. Much like the big aluminum food bags, pouch batteries are flat packets made of flexible material that can house multiple battery cells instead of food. The CTP architecture for battery packs is designed in a way that omits the need for individual casings, saving space and reducing weight, but it is prone to thermal swelling.

The Taiwanese company is expected to develop a fully operational battery segment by early next year to be presented at the Consumer Electronics Show (CES) 2027 to be held in January in Las Vegas, Nevada. At the same time, the fully functional battery pack is targeted for delivery in the second half of next year. 

Taking a multi-step approach to achieve the final battery integration into the vehicle, the company has set multiple milestones, including the development and testing phases. 

“Bringing next-generation batteries to the automotive market requires more than cell technology,” said Vincent Yang, Founder and CEO of ProLogium.

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