“The fundamental tendency of lithium-ion batteries is that they are inherently unstable,” said Jeremy Anwyl, chief executive of car-research firm Edmunds.com.”
The Wall Street Journal reports,
… in a change to its previous stance, the [National Highway Traffic Safety Administration] is no longer saying it is certain that battery-powered cars are as safe as their conventional counterparts. NHTSA said, however, that it has no specific reason to be concerned about vehicles other than the Volt.
Read the Wall Street Journal report (subscription required).