# Dodge's Ejecting Battery Patent Offers Dramatic Solution to EV Fire Risk
Dodge has filed a patent for a system that ejects a burning battery from an electric vehicle, using the car's 12-volt auxiliary battery to power the drive system and move the vehicle away from the thermal runaway event. The concept reflects both engineering pragmatism and the automaker's willingness to explore unconventional safety solutions as the industry grapples with battery fire risks in EVs.
The patent centers on a mechanical ejection system triggered when onboard sensors detect dangerously high temperatures or pressure inside the main battery pack. Once activated, the 12-volt battery powers motors or actuators to physically remove the burning battery from the vehicle chassis, allowing the car to drive itself a safe distance away from the failed power source. This approach differs fundamentally from passive cooling systems or containment protocols that most manufacturers employ.
Battery thermal runaway remains one of the most challenging safety problems in the EV transition. When a lithium-ion battery cell fails due to manufacturing defect, collision damage, or internal short circuit, it can ignite at temperatures exceeding 750 degrees Fahrenheit. Traditional safety measures include thermal fuses, solid-state cooling plates, and fire suppression systems within the battery enclosure. Manufacturers like Tesla, GM, and Ford have invested heavily in battery chemistry refinement and pack architecture to prevent these events. Yet despite improvements, lithium-ion battery fires occur frequently enough that NHTSA and insurance companies closely monitor EV fire data.
The Dodge patent takes a different tack. Rather than contain or cool a burning battery, it removes the threat entirely. The execution requires several components working in concert: temperature sensors throughout the battery pack, a mechanical ejection mechanism with sufficient force to separate a multi-hundred-pound battery module from the vehicle frame, and enough residual power in the 12-volt system to operate the ejection hardware. The challenge lies in engineering a system reliable enough to function during a catastrophic thermal event when electrical systems themselves may be failing.
Dodge, owned by Stellantis, has positioned itself as the performance-focused, tradition-minded brand within the conglomerate. The company still sells the gas-powered Challenger and Charger muscle cars, though both models will transition to electric powertrains in coming years. The ejecting battery patent fits the brand's iconoclastic image. It's a solution only Dodge would publicly patent, blending brute-force mechanical engineering with the theatrical flair that defines American automotive culture.
Whether this system reaches production remains unclear. Patents often represent theoretical concepts that never materialize, or they serve defensive purposes within patent portfolios. The ejection mechanism adds complexity, weight, and cost to a vehicle's architecture. Regulatory agencies would need to validate the system's reliability and ensure ejected batteries do not create secondary hazards like roadside fires or injury to bystanders. Insurance liability questions would follow.
Yet the patent signals that EV safety innovation extends beyond battery chemistry and electronics. As automakers race to scale production and manage battery costs, mechanical solutions like Dodge's offer creative alternatives to incremental improvements in existing frameworks. Whether engineers ultimately favor ejection systems over other approaches will depend on real-world testing, cost analysis, and regulatory acceptance. For now, the concept stands as a distinctly American answer to a global engineering challenge.