The nickel–cadmium battery (Ni–Cd battery or NiCad battery) is a type of rechargeable battery using nickel oxide hydroxide and metallic cadmium as electrodes.
Ni-Cd batteries, which can be recognized by their chemical symbols Ni for nickel and Cd for cadmium, were first created in 1899. NiCad is a specific brand name by SAFT Corporation but is often used generically for all nickel-cadmium batteries.
During the charging process, the nickel oxide hydroxide electrode undergoes oxidation, releasing oxygen and electrons. Simultaneously, the cadmium electrode undergoes reduction, forming cadmium hydroxide and accepting electrons. This process is reversible, allowing the battery to be recharged multiple times.
There can also be a problem with disposal because cadmium is highly toxic. The largest nickel–cadmium battery ever built is a 40 MW unit in Alaska which was completed in 2003. It occupies a building the size of a football field and comprises 13,760 individual cells.
Saroj Rangnekar, in Journal of Energy Storage, 2017 Nickel Cadmium (NiCd) batteries are in use since around 1915, then Nickel Metal Hydride (NiMH) batteries which were introduced around 1995 .
The energy density of a typical nickel–cadmium cell is 20 Wh/kg and 40 Wh/L. The nominal voltage of the nickel–cadmium battery cell is 1.2 V. Although the battery discharge rate and battery temperature are an important variable for chemical batteries, these parameters have little effect in nickel–cadmium batteries compared to lead–acid batteries.
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The nickel–cadmium battery (Ni–Cd battery or NiCad battery) is a type of rechargeable battery using nickel oxide hydroxide and metallic cadmium as electrodes. The abbreviation Ni–Cd is …
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The nickel–cadmium battery (Ni–Cd battery or NiCad battery) is a type of rechargeable battery using nickel oxide hydroxide and metallic cadmium as electrodes. ... Depending on the …
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