Recent truck crashes involving lithium-ion batteries have led to several road closures in California and Nevada.
The big issue: These fires are challenging to extinguish, mainly due to a phenomenon called "thermal runaway."
- On July 26, a semi truck carrying lithium-ion batteries overturned on I-15, causing a massive fire and long road closure as the batteries burned for days.
- Similar incidents followed in August and September, resulting in extended disruptions and investigations.
What's happening: Thermal runaway is a chain reaction within lithium-ion batteries that causes them to overheat, sometimes leading to fires or explosions.
- This process can be triggered by damage, defects, or exposure to extreme conditions.
- Once started, it creates a heat chain reaction that spreads to other parts of the battery, making the fire difficult to control.
- Tons of water are needed to put out these fires, which also release toxic fumes.
Why it matters: Such incidents highlight the risks associated with transporting lithium-ion batteries on highways. They also underscore the importance of new regulations aimed at reducing these risks.
The legislative response: In September, Rep. Dina Titus introduced the "Thermal Runaway Reduction Act" to improve safety during the transport of these batteries reported Titus's office.
- This legislation calls for stricter safety testing and limits on battery charges during transport.
As battery transport increases, continued efforts are crucial to prevent future accidents and ensure safer roads for everyone.