Built-In Fire Extinguishers: A Solution to Battery Explosions

Quick summary

• Researchers have developed a polymer material for lithium-based batteries that releases fire-suppressing chemicals at high temperatures, reducing risks of overheating and fires.
• Lithium metal batteries with this material are less prone to explosions compared to standard lithium metal batteries under extreme heat conditions.
• The prototype battery’s temperature peaked at 220°C without causing any fire or explosion, unlike the standard battery which overheated to 1000°C and burst into flames within 13 minutes after exceeding 120°C.
• Lithium metal batteries can store substantially more energy than widely used lithium-ion batteries due to their use of pure lithium in electrodes rather than graphite.
• the technique could enhance safety across various devices such as electric vehicles, medical devices, and possibly electric aircraft.
• Integration of this fire-suppressing polymer technology into existing battery manufacturing is achievable with adjustments but remains a near-term safety solution as the industry pursues long-term alternatives.

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