Matsushita, the out-of-wedlock mother of Panasonic, has announced that it will be producing spark-resistant laptops batteries. This is in response to the recent big-bada-booms caused by overheating Sony batteries. Matsushita already controls 13 percent of the lithium-ion battery market. I'm no kind of rocket scientist, so I'm still not very certain how spark-resistant and heat-proof batteries work. Maybe it is like one of those gel ice packs Ma used to put in my lunch pale, but with lithium-ions inside.