Lithium cells outperform Nickel Cadmium and Nickel Metal Hydride in almost every way. But they also need a little bit more babysitting to get the most out of them. That comes in the form of ...

The nickel-cadmium battery was invented by engineer ... some nationally uniform specifications for the size of battery cells, ...

It uses a nickel and cadmium plate and potassium hydroxide as the electrolyte. Originally invented in Sweden in 1899, it became popular in the 1950s after a sealed version was developed.

Just as lithium-ion batteries have made nickel-cadmium cells boring and old hat, gallium nitride semiconductors are making silicon parts look unimpressive by comparison. [Brian Dipert] looked at ...

Since then, the cells have shown remarkable stability ... unlike the cadmium contained in a nickel-cadmium (Ni-Cd) battery. The cadmium within the solar module is, therefore, no threat to the ...