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Environment
Xinyu Huang, Associate Professor of Mechanical Engineering, University of South Carolina

Saltwater flooding is a serious fire threat for EVs and other devices with lithium-ion batteries

Flooded cars in Clearwater, Fla., after the arrival of Hurricane Milton on Oct. 10, 2024. Spencer Platt/Getty Images

Flooding from hurricanes Helene and Milton inflicted billions of dollars in damage across the Southeast in September and October 2024, pushing buildings off their foundations and undercutting roads and bridges. It also caused dozens of electric vehicles and other battery-powered objects, such as scooters and golf carts, to catch fire.

According to one tally, 11 electric cars and 48 lithium-ion batteries caught fire after exposure to salty floodwater from Helene. In some cases, these fires spread to homes.

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