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 ...

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 ...

Cathodes play a dominant role in defining cell energy density, and also make up a significant proportion of cell costs, due to the use of high-cost metals such as cobalt, nickel and lithium. Standard ...

It's difficult to form a protective coating that prolongs battery life at the battery's cathode, but there may be a low-cost ...