Battery startup Group14 Technologies raises $14M to make materials for electric cars

Group14 Technologies manufactures silicon-carbon nano-composite materials for electric vehicle batteries. Above, a piece of silicon. (Wikimedia Commons Photo)

A 3-year-old Seattle-area startup is raising cash to develop materials that improve batteries in electric vehicles.

A new SEC filing reveals that Group14 Technologies raised $14.3 million. The company confirmed the

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