UK-headquartered solid-state battery developer Ilika has begun shipping its new 10 Ah Goliath battery prototypes to customers across multiple industries, including automotive companies. These new prototypes offer five times more capacity than the 2 Ah P1 prototypes delivered to customers in July 2024.

The 10 Ah cells feature a proprietary oxide coating which offers improved safety. Ilika says this will enable EV manufacturers to design lighter and less expensive battery packs. According to analysis by automotive experts Balance Batteries, this technology could reduce battery pack weight by 20% and cut manufacturing costs by as much as £2,500 per vehicle.

The prototypes were manufactured on Ilika’s new automated pilot line, completed in October 2025. The automation has already shown significant benefits—the first batch achieved a 93% manufacturing success rate, which the company considers well above the minimum required for moving to full production.

Ilika has also created initial samples of larger 50 Ah P2 cells for testing. These will be available for shipping after feedback has been received on the current 10 Ah cells, which is expected during 2026.

“Our new automated pilot line is now producing high-quality, consistent battery prototypes for our partners to evaluate,” said Graeme Purdy, CEO of Ilika. “This achievement is a significant milestone toward bringing our technology to market, further opening the window for licensing discussions with manufacturers.”

“There is significant interest in developing technical solutions that are differentiated from the offerings available from established cell manufacturers,” said an unnamed head of battery development at a major UK automotive supplier. “We look forward to evaluating these 10 Ah prototypes from Ilika, which demonstrate the company’s sustained capability to improve and mature their product for commercial rollout.”

Source: Ilika