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The project “BattFiSafe 24” is a pre-study aimed at investigating fire test requirements for water-based fire extinguishing systems and adapted rule requirements for battery installations in small electric energy storage (EES) spaces on board ships. The objective of the project was to provide a comprehensive review of current firefighting practices for lithium-ion battery (LIB) fires, drawing from scientific literature and industry pre-studies. The project collaborated with manufacturers through workshops to enhance knowledge of firefighting systems for confined maritime spaces. The project aimed to draft a proposal for test specifications and a foundation for future studies to verify the effectiveness of these systems in preventing thermal propagation in LIBs. 

The project entailed close collaboration with industry partners, experts in the maritime domain, and battery fire safety. To gather input, and discuss firefighting systems and relevant regulatory aspects, a literature study, and a workshop were conducted. The project outcomes identified the limitations of water mist systems in confined spaces and highlighted the potential benefits of water flooding systems, particularly those designed to flood inside battery packs. Innovative solutions, such as enclosing battery packs in open-top boxes, were considered to optimize water usage and enhance cooling effects. Several recommendations were made based on the results including the integration of different suppression methods, efficient water usage, rigorous testing of new designs, and adaptability to confined spaces. By addressing safety considerations and implementing clearer functional requirements, more fit-for-purpose standards can be developed, and the safety and reliability of firefighting systems in small EES spaces can be enhanced.