Greenpeace
Researchers from Vanderbilt University in Nashville, Tenn., used scraps steel and brass to create what they say is the world’s first steel-brass battery that can store energy at levels comparable to lead-acid batteries.
Read MoreLithium-ion batteries are necessary for next-generation consumer electronics to compete with market demands for longer battery life and unsurpassed power. And researchers are focusing on making these power sources safer and better for the environment.
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