Technology: Back to the Electrics

Only one major roadblock has prevented Detroit's auto engineers from turning their nostalgic dreams of an electric car into a practical scheme: lack of a battery with the capacity and durability to power a modern automo bile. Now that obstacle may have been removed. Ford Motor Co. scientists have demonstrated a miniature version of a new battery that promises to put the company in the electric-car business within the next ten years.

Unlike the traditional auto battery, which contains solid lead and lead dioxide electrodes in a liquid electrolyte of sulphuric acid, the new Ford battery uses liquid sodium and...

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