TDK Introduces Electric Double-Layer Capacitor so thin it fits in a Smart Card

TDK Corporation announced the release of an ultra-thin, high-energy capacitor suitable for powering devices such as electronic paper displays, advanced biometric authentication or, simple displays in wireless headphones. The 5 mF electric double-layer capacitor has a maximum thickness of just 0.45 mm and, when fully charged, provides around 50 mJ of energy to power a load.