Energy storage is a grand challenge for future energy infrastructure, transportation and consumer electronics. Jun Liu discusses how graphene may — or may not — be used to improve various ...

Capacitors are able to charge and discharge more quickly than batteries, and can do so hundreds of thousands of times. Batteries, on the other hand, are able to store more energy than capacitors.

The Leyden jar is a dissectible capacitor made of aluminum and glass that poses an interesting question of where the stored charge resides. A series of experiments can be done showing that the charge ...

If you're a beginner electronics hobbyist you know that the capacitors on most battery-operated objects aren't powerful enough to kill you but can still provide a painful jolt of electricity if not ...

Using a PN-junction diode for temperature measurement usually depends on its 2‑mV/K temperature coefficient. Conventionally, you must amplify and digitize this voltage with an ADC before you can use ...