A new type of power cell can convert mechanical energy—from walking, for example—to chemical energy and store the power until it is released as electrical current.
“People are accustomed to considering electrical generation and storage as two separate operations done in two separate units,” says Zhong Lin Wang, a professor in the School of Materials Science and Engineering at the Georgia Institute of Technology.
“We have put them together in a single hybrid unit to create a self-charging power cell, demonstrating a new technique for charge conversion and storage in one integrated unit.”
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Photo credit: Gary Meek/Georgia Tech