The E-Löschlanze® – the e-extinguishing lance by MURER-Feuerschutz
Effective measures for extinguishing burning high-voltage batteries
Electric mobility is growing rapidly—not just in the private passenger car sector, but increasingly in commercial transportation as well, whether on the road, by rail, or on water. As the number of battery-electric vehicles registered rises and electrified logistics and transportation systems expand, the number of high-voltage storage systems in daily use is also growing significantly.
Consequently, the range of scenarios in which burning lithium-ion batteries play a role is also expanding: from electric and hybrid passenger cars to commercial vehicles in freight and passenger transport, and even battery-electric rail and watercraft.
The E-Löschlance® from MURER was developed specifically for this new operational reality.
Scientific findings from the DGUV and the IBK Heyrothsberge
Experts from the German Social Accident Insurance (DGUV) and the Heyrothsberge Institute for Fire and Disaster Protection (IBK) consistently emphasize in their publications that fires involving lithium-ion batteries pose unique challenges and differ fundamentally from conventional vehicle fires. Accordingly, effective firefighting is only possible by reaching the source of the fire inside the battery.
DGUV: hard-to-reach fire sources, largely ineffective external cooling with long extinguishing times and high use of extinguishing agents, high operational complexity, as well as the risk of toxic gases and reignition
IBK Heyrothsberge: thermal runaway as the central challenge, which spreads autonomously within the battery
Limitations of conventional methods: External cooling and covers can only influence the fire, not reliably stop it
Consequence: Only invasive extinguishing methods enable rapid extinguishment and sustainable control of the fire.
Extinguish the fire at its source
The E-Löschlance® is used to invasively extinguish fires in hermetically sealed lithium-ion batteries, which are often difficult to access: By penetrating the battery casing in a controlled manner, the extinguishing agent reaches the interior of the cell—exactly where the thermal reaction occurs and spreads on its own.
Unlike conventional methods, which primarily rely on external cooling over an extended period using large amounts of extinguishing agent, the E-Löschlance® targets the source of the fire directly, enabling it to immediately interrupt the thermal chain and thereby effectively control the fire’s external progression.
The Benefits at a Glance
Effective interruption of thermal runaway
Significantly reduced risk of backfire
Efficient use of extinguishing agents
Shorter response times and follow-up checks
Greater safety for emergency personnel
Scientifically sound basis (DGUV & IBK)
Successfully deployed internationally
Proven internationally – successful in the field
The E-Löschlance® is already in use in several countries and has proven itself time and again in the field. Users report faster stabilization of battery fires, better control of the incident, and a significant reduction in reignition.
Conclusion
Publications by the DGUV and research findings from the IBK Heyrothsberge clearly show that fires involving lithium-ion batteries require a fundamental shift in tactics. The decisive factor is direct access to the source of the fire inside the battery.
With the E-Löschlance®, MURER offers an innovative, invasive, and internationally proven solution for the firefighting of tomorrow—efficient, safe, and forward-looking
