cary pint

Ultra-thin device, help pedestrians fully charge the phone battery
Scientists at Vanderbilt University in the United States have created a material that collects extremely small amounts of energy that can extract energy from human movement.
Produces extremely high performance batteries from the things we still throw away every day
Cary Pint's batteries are small in size, made of steel, copper, and commonly used potassium hydroxide (found in detergents, dyes, etc.).