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Big batteries will fight blackouts and could make renewable power economically viable.
New energy-storage technology could surpass today’s batteries in capacity and durability.
Better batteries are making electric motorcycles possible, providing a cleaner alternative to pollution-spewing gas-powered bikes.
Long-lived nuclear batteries powered by hydrogen isotopes are in testing for military applications.
Heating and air-conditioning systems that use thermoelectrics could make plug-in hybrids more practical.
A battery-swapping startup’s innovative system for charging electric vehicles suffered from overreach and limited consumer demand.
Some observers are alarmed that the federally backed battery maker A123 Systems could soon be owned by the Chinese. But did the company have a choice?
The troubled company says an advanced design could lead to cheaper electric vehicles.
New infrastructure may help launch electric cars in Israel and Denmark.