| abstract |
A stretchable electrode includes: a current collector; and, disposed on a surface of the current collector, a metal layer or an electrode active material layer, wherein the current collector includes a spiral-type coil spring and an elastic polymer, the spiral-type coil spring including a coil spring wound in a spiral pattern around a point, and wherein the elastic polymer is disposed in at least a portion of an inside of the coil spring, in at least a portion of a space between spiral coils of the spiral-type coil spring, or both. |