On Friday, Boeing gave US regulator, the Federal Aviation Administration (FAA), its plan to fix the battery problems, which reportedly involves a significant redesign of the batterypack with new ceramic insulation around each of the battery's eight cells.
The background on the current Chevy Volt situation is that in a very few instances, fires broke out days or even weeks after the NHTSA crash-tested the Chevy Volt and its batterypack, in crashes severe enough to damage the battery.