6.1: Introduction
( \newcommand{\kernel}{\mathrm{null}\,}\)
Electrical energy/power storage has widespread applications as can be seen in the sheer range and diversity of batteries used as a source of electrical power. Batteries range from tiny button cells storing miliwatthours of energy and delivering microwatt power, to gigantic load levelling batteries situated within a factory size building, storing megawatthours of energy and delivering megawatts of power. It is predicted that in the year 2006 global demand for batteries will reach £33 billion pounds.