Battery Safety Breakthrough: NLR’s Cradle-to-Crisis Approach
July 02, 2026 — Battery safety failures can escalate rapidly into thermal runaway, where heat buildup triggers a dangerous chain reaction of material breakdown and ignition. While such incidents remain rare due to existing safeguards, the push toward higher-energy-density batteries demands stronger prevention measures.
At the U.S. Department of Energy’s National Laboratory of the Rockies (NLR), researchers are tackling battery safety head-on through a comprehensive cradle-to-crisis framework. This approach spans material development, real-world testing, AI-driven modeling, and emergency response. As the industry races toward next-generation chemistries, NLR’s battery safety research delivers critical insights that balance performance gains with risk reduction.
Why Battery Safety Matters in 2026
Global demand for batteries is surging across electric vehicles (EVs), grid storage, and emerging sectors like aerial mobility and data centers. Higher energy densities bring greater risks if not properly managed. Effective thermal runaway prevention has become essential for public confidence and widespread adoption of clean energy technologies.
NLR’s work addresses these challenges by combining lab-based science with practical, field-relevant solutions. Their research helps manufacturers design safer systems while equipping first responders to handle incidents involving today’s and tomorrow’s batteries.
NLR’s Cradle-to-Crisis Battery Safety Framework
NLR’s rigorous evaluation starts at the material level and extends through the entire battery lifecycle.
Advanced Material Characterization & Testing
Researchers thoroughly examine microstructural, thermal, electrical, mechanical, and electrochemical properties. They subject cells to extreme conditions, including nail penetration, thermal stress, and internal short circuits, in controlled environments to study failure mechanisms.
“Our research aims to identify the root cause of why a battery fails,” NLR Senior Energy Storage Engineer and Manager Matthew Keyser said. “That deeper insight is what allows us to design safer, more reliable systems instead of addressing issues after batteries enter the market.”
Source: National Laboratory of the Rockies
New Open-Access Battery Safety Database
A major milestone is the launch of an open-access Battery Safety Database, developed with the University of Texas at Austin and Exponent Inc. under ARPA-E support. It compiles key safety characteristics across battery types, giving researchers and manufacturers a valuable shared resource.
Multiscale Research – From Atoms to Systems
NLR connects behaviors across scales: atomic-level defects affecting voltage, particle-scale mechanical stress, electrode composition, and full-cell thermal management. This holistic view helps predict how subtle material changes can trigger hazardous reactions, thereby supporting solid-state battery safety and other emerging designs.
Senior scientist Donal Finegan noted that understanding these risks is vital for preparing safer battery systems of the future.
AI-Powered Battery Safety Modeling
NLR combines cutting-edge imaging with data analytics. Their unique nano-computed tomography scanner enables real-time 3D monitoring of batteries during operation and failure at 50 nm resolution.
Physics-informed AI modeling for battery safety integrates this experimental data to predict behaviors such as thermal runaway. These models accelerate insights while requiring high-quality data, exactly what NLR provides. Much of this work stems from the ARPA-E JOULES program and is shared publicly to benefit the broader industry.
Testing Tomorrow’s High-Energy Batteries Today
While current lithium-ion batteries benefit from established safety protocols, emerging chemistries promise higher performance at lower costs. NLR evaluates novel materials, including sodium-ion, potassium-ion, and solid-state battery safety characteristics.
Through the ARPA-E JOULES program and its expansion to JOULES-1K, the lab validates technologies targeting 1,000 watt-hours per kilogram (Wh/kg) and per liter at end-of-life. These ultra-high-density systems could transform aviation, drones, shipping, and heavy industry.
“These 1,000-watt-hour technologies are a totally different beast,” Finegan said. “They will demand ultrahigh energy density and could enable electrification in new industries, including aerial vehicles, drones, shipping, and heavy-duty mining equipment. It’s more important than ever to be aware of risks and hazards when managing all that energy to ensure a safe rollout of new technologies.”
Source: National Laboratory of the Rockies
Improving Emergency Response for EV Battery Fires
NLR’s efforts extend beyond the lab to real-world incidents. Although EV battery fires are rare, occurring at rates similar to or lower than those of gasoline vehicles, they pose unique challenges due to potential reignition and complex chemistry.
In partnership with the National Highway Traffic Safety Administration (NHTSA), NLR analyzed post-Hurricane Ian flooding fires in 2022. The collaboration developed better diagnostic tools, discharge methods, best-practice fact sheets, and updated guidance for first responders.
“Our goal is to close the knowledge gap between what responders are trained to do and what EVs actually demand of them,” said NLR’s Sarah Cardinali, who leads the laboratory’s work with NHTSA and manages applied research and engineering for transportation systems. “While our research insights may lead to future vehicle and battery designs, it’s equally important to equip first responders to safely and confidently handle the EVs we have today.”
Source: National Laboratory of the Rockies
Key Takeaways for the Battery Industry
Proactive research across all lifecycle stages reduces risks more effectively than isolated testing. Open data sharing, like the Battery Safety Database, accelerates industry-wide progress. Thermal runaway prevention and AI modeling are critical for high-density next-generation battery safety. Strong lab-to-field collaboration improves both design and emergency preparedness. Conclusion: As batteries power an increasingly electrified world, NLR’s cradle-to-crisis approach demonstrates how rigorous battery safety research can keep pace with innovation. By focusing on root causes, sharing knowledge, and supporting responders, the laboratory helps ensure safer, more reliable energy storage solutions.
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