The distorted main lithium-ion battery of the All Nippon Airways' Boeing 787 that had to make an emergency landing is dismantled by investigators in Kyoto, Japan. (Japan Transport Safety Board via Associated Press)

The distorted main lithium-ion battery of the All Nippon Airways' Boeing 787 that had to make an emergency landing is dismantled by investigators in Kyoto, Japan. (Japan Transport Safety Board via Associated Press)