v3.1.0 / 01 jan 02 / toc / greg goebel / public domain
* The most advanced portable electronics gear, featuring integrated circuits with millions of transistors, still depends on an old technology: batteries, or "electrical storage cells". Although new storage cell technologies are being developed, most of the common batteries in daily use were developed over a century ago.
A related power-storage technology, "fuel cells", is about as old, but is only now poised to come into widespread use. This document discusses storage cell and fuel cell technology, outlining the current state of the art and future prospects.