e-Fabric Battery

Up to now, development of truly “wearable electronics” has been limited by the battery technology required to power them. Still tethered to wall outlets by chargers and cords, many apparel-integrated electronics need to be disassembled and plugged in, making them cumbersome to use. But a recent breakthrough in e-textiles could overcome these hurdles and take smart clothing to the next level.

A group of Korean researchers has developed a robust battery that can be woven directly into fabric by coating polyester yarn with nickel, followed by carbon, and covering it with a layer of polyurethane. Adding lightweight solar cells to the fabric allows the wearer to recharge the battery without plugging it in. And the material is flexible enough to keep working even after being folded and unfolded many times.