Wesley Chang is an assistant professor of mechanical engineering and mechanics at Drexel University. Rechargeable batteries are great for storing energy and powering electronics from smartphones to ...

This smart power bank for portable electronics integrates a photovoltaic input with other power-supply sources and battery ...

From smartphones to electric vehicles, batteries single-handedly power some of the single most impactful technologies in our lives. And while batteries themselves aren’t some new technology, the ...

When the battery was first invented in the 1800s, its energy storage capabilities unlocked innovation in unimaginable ways. From discs of copper and zinc held together by old-school electrolytes, the ...