Since we often rely on our mobile devices to shop, communicate, travel, and more, it's paramount to keep our phones' batteries charged. However, most of us can't stay tethered to a wall outlet.

Advances in battery technology—for consumer electronics and electric vehicles alike—are largely incremental, and have been since the advent of modern lithium-ion cells almost 30 years ago.

In groundbreaking research, scientists have made a structural battery 10 times better than in any previous experiment. What’s a structural battery, and why is it such a big deal? The term refers ...