Researchers at the University of Washington have created a cell phone that ... charge and doesn't have a battery. Instead, it pulls power from ambient light and radio waves. Follow Tech Insider ...
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Scientists use MRI-inspired device to achieve atomic-level battery breakthrough — here's how it worksA radio-frequency field is applied to a sample ... "What we did in our study was like taking MRIs of operating battery cells, except that we didn't produce images of the cells," study main author ...
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