Nickel–cadmium battery
OverviewEnvironmental impactHistoryCharacteristicsElectrochemistryPrismatic (industrial) vented-cell batteriesSealed (portable) cellsPopularity
Ni–Cd batteries contain between 6% (for industrial batteries) and 18% (for commercial batteries) cadmium, which is a toxic heavy metal and therefore requires special care during battery disposal. In the United States, the expected battery recycling cost (to be used for proper disposal at the end of the service lifetime) is rolled into the battery purchase price. Under the so-called "batteries directive" (2006/66/EC), the sale of consumer Ni–Cd batteries ha













