ProLogium and OPmobility to develop solid-state battery modules from 900 Wh/L cells

ProLogium and OPmobility have entered into a Memorandum of Understanding to collaborate on developing solid-state battery modules tailored for electric vehicle (EV) applications. The partnership combines ProLogium’s advanced lithium ceramic cells, which boast an energy density of 900 Wh/L and a specific energy of 380 Wh/kg, with OPmobility’s expertise in battery module and pack engineering. The joint effort aims to create a system-level battery solution that original equipment manufacturers (OEMs) can assess for integration into future EV platforms. ProLogium’s solid-state cells demonstrate impressive performance metrics, including a cycle life exceeding 1,200 cycles and retention of over 95% discharge capacity at temperatures as low as -20°C. However, the collaboration recognises that cell-level specifications do not directly translate to module or pack-level performance due to the complexities of thermal management, structural integrity, electrical interconnections, and battery management systems. OPmobility’s C Power business group brings extensive experience in industrial module and pack development, having worked with multiple OEM programmes, which will be crucial in bridging this gap. ProLogium has already made significant strides in production, having shipped over 800,000 cells from its gigafactory in Taoyuan, Taiwan, which began operations in 2024. The company is also planning to expand its manufacturing footprint with a new facility in Dunkirk, France, slated to start construction in 2026, with mass production targeted for mid-2029. This expansion reflects ProLogium’s commitment to scaling up solid-state battery technology for broader market adoption. Vincent Yang, founder and CEO of ProLogium, emphasised the importance of system integration and validation in driving the adoption of solid-state batteries. He highlighted that the partnership’s shared objective is to develop a module solution that meets OEM requirements and facilitates the transition from cell technology to fully integrated battery packs. This collaboration represents a significant step towards overcoming the technical challenges that have so far limited the commercialisation of solid-state batteries in the EV sector.