It has even been proposed to let the battery burn while protecting adjacent areas from further exposure. Tesla itself warns that a battery fire can require up to 3,000 gallons of water for full suppression, which can take up to 24 hours. These fires are difficult to extinguish and even frequently reignite. The heat from the short circuit makes the battery’s internal temperature rise to the point where a chemical reaction can start and spread to the adjacent cells, known as a “thermal runaway,” which is difficult to stop.īattery fires also release toxic gases that can threaten first responders and building occupants. The problem arises when a short circuit occurs in these batteries. With the market for electric vehicles projected to grow from 2.5 million units in 2020 to 31.1 million units in 2030, concerns about public safety related to their lithium-ion batteries have also increased. Stakeholder, Regulatory, & Public Engagement SupportĪ thermal runaway due to short circuits in electric vehicle batteries increases the fire risk significantly, especially with the multiplication of the fire load in parking garages.
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