New liquid alloy electrode improves sodium-beta battery performance Sun, wind and other renewable energy sources could make up a larger portion of the electricity America consumes if better batteries could be built to store the intermittent energy for cloudy, windless days. Now a new material could allow more utilities to store large amounts of renewable energy and make the nation’s power system more reliable and resilient. A paper published today in Nature Communications describes an electrode made of a liquid metal alloy…