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ARPA-E says better sensors and controls could allow automakers to cut battery size by 20 to 50 percent.
Devices that can make wireless connections even without an onboard battery could spread computing power into everything you own.
A battery-swapping startup’s innovative system for charging electric vehicles suffered from overreach and limited consumer demand.
A 19th-century idea might lead to cleaner cars, larger-scale renewable energy.
Tesla’s innovations in batteries give it an edge that Fisker, focused on design, lacks.
Energ2’s nanostructured carbon anodes can boost lithium-ion battery capacity by 30 percent.
Stretchable batteries that can be recharged wirelessly offer a power source for wearable electronics and health monitors.
Researchers at Oak Ridge National Laboratory have developed a solid electrolyte to replace flammable ones used in lithium-ion batteries.
The materials could make batteries that store more than twice as much energy as lithium-ion ones.