Congress Programme

Technical Sessions


Advances in Cryo-compressed Hydrogen Vehicle Storage (CcH2)

Dr. Oliver Kircher, BMW Group, Germany
Mr. Tobias Brunner, BMW Group, Germany

Based on the successful demonstration of BMW's Hydrogen 7 vehicle with internal combustion engine and liquid hydrogen storage system and the lessons learnt from development and demonstration activities, the BMW Group has entered into a new phase of intensive qualification of core components for future hydrogen vehicles. A special focus is set on hydrogen storage, which has been identified as a crucial issue on the way to customer viable commercial hydrogen vehicles, either with internal combustion engines or fuel cell drive trains.

Due to its promising potential to overcome the issue of thermal endurance of liquid hydrogen storage while retaining a higher system energy density than any other available hydrogen vehicle storage system and while minimizing other issues of liquid and high-pressure gaseous storage systems, cryo-compressed hydrogen storage (CcH2) has been identified as most promising supplement to the existing hydrogen storage portfolio, in particular for use in larger passenger vehicles with high energy requirements. As a consequence the BMW Group has started a thorough component and system level validation of CcH2 vehicle storage.

The presentation on BMW's cryo-compressed hydrogen storage development and demonstration will compare different energy storage systems for zero emission mobility, in particular batteries and hydrogen storage based on energy density, cost and infrastructure requirements and . It will then summarize the analysis that resulted into CcH2 being recognized as a high-potential candidate to supplement the existing hydrogen vehicle storage portfolio. The value of CcH2 storage as a future hydrogen vehicle storage system option with reference to the best-fit solution for different vehicle applications will be highlighted. The inter-dependency of different physical hydrogen storage types and their implications on a future hydrogen infrastructure will be outlined. The current status of BMW's CcH2 storage component and system level validation will extract the remaining challenges of CcH2 storage on its way to a commercial product. Finally, BMW's further roadmap for CcH2 storage development will be disclosed.

This abstract is supplemented by a PDF, which can be viewed here.

Session: Alternative Drivelines