This undated photo provided by the National Transportation Safety Board shows the burned auxiliary power unit battery from a JAL Boeing 787 that caught fire on Jan. 7, 2013, at Boston's Logan International Airport. It’s been nearly a quarter of a century since the last big jump in battery technology. As 21st century technology strains to be ever faster, cleaner and cheaper, the battery, an invention from more than 200 years ago keeps holding it back. It's why electric cars aren't clogging the roads and why Boeing's new ultra-efficient 787 Dreamliners aren't flying high. (AP Photo/National Transportation Safety Board)
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