Err, how would a hydro powered car work, without a battery? > In a 2013 report, the U.S. Environmental Protection Agency’s Design for the Environment program c

Err, how would a hydro powered car work, without a battery? > In a 2013 report, the U.S. Environmental Protection Agency’s Design for the Environment program concluded that batteries using nickel and cobalt, like lithium-ion batteries, have the “highest potential for environmental impacts” The highest potential for environmental impact among current Li-ion battery chemistries. This chemistry is currently best-in-class for energy storage, but it is an area of very active research. For example, lithium-air batteries hold promise for more energy storage with a carbon cathode. Of course grid power is also moving to renewables.