The safety of lithium-ion batteries that power electric vehicles is being scrutinised by US auto safety regulators after a Chevrolet Volt battery caught fire, according to the San Francisco Chronicle.
The regulators have approached all automakers – including GM, Nissan Motor Co. and Ford Motor Co. – that sell or have plans to sell vehicles with lithium-ion batteries, with questions about the batteries' fire risk.
“As we develop new technology, we need to...