After five years and $50 million, 24M unveils new design for lithium ion batteries

Yet-Ming Chiang took an unusual approach to product testing last summer: He brought one of his company’s prototype batteries to a shooting range in Maynard, and peppered it with a half-dozen rounds from a deer rifle. Not only did the battery not catch fire or explode - as would happen with many lithium ion batteries - but it continued pumping out power.”


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