In portable applications where battery life is important, designers may evaluate various battery chemistries to determine the best energy source. For some designs, traditional alkaline batteries will ...

Ultracapacitors store electrical energy through static charge separation in a double-layer of electrodes, instead of chemical reactions like in batteries. This allows them to charge and discharge ...

For the PDF version of this article, click here. The need for portability in devices is ever increasing. And portable devices require a means of storing energy for powering applications. Energy ...