A battery stores chemical energy and every time your phone turns on, it harvests a controlled imbalance between lithium-ion materials trying to trade electrons
Researchers and educators at the University of Washington’s Clean Energy Institute describe a lithium-ion battery as a compact electrochemical system where lithium ions and electrons take separate routes through a cell. That split journey is what lets phones, laptops and electric vehicles turn stored chemical energy into useful current. The familiar language of charging and…
