Comparison of Secondary Batteries




Nickel Cadmium (NiCd)

Rated voltage 1.2 V / cell
Round and button cells
General-purpose use, the system used most world-wide, adaptation of the
various design series to the respective application (standard, fast charging,
high-temperature, high-current, high-capacity)
Application in all areas of industry (electric tools, household appliances,
lamps, radios, etc) and in the consumer sector
Standard and customized battery-packs
Tried and tested recycling

Nickel-Metal Hydride (NiMH)

Rated voltage 1.2 V / cell
Round and button cells, prismatic cells
Energy density approx. twice as high as NiCd
Continuous further development
Increasing use in industrial applications, notebooks, mobile telephones
Standard and customized battery-packs

Lithium-Ion (Li-Ion)

Rated voltage 3.7 V / cell
Round cells & prismatic cells
Energy density approx. three times as high as NiCd
Continuous further development
Also available as Li-Polymer
Used in mobile telephones, PDAs, Notebooks & medical equipment
Customized battery-packs