What is Nickel cadmium battery?
[[File:NiCd various.jpg|thumb|Nickel cadmium batteries]] A '''nickel cadmium battery''' is a [[secondary cell]], meaning it is rechargeable. It is also known as '''Nicad''' or '''Ni-Cd'''. It has a voltage of 1.2 V, although a freshly-charged battery can measure 1.3 - 1.4 V. It was used for many applications, such as rechargeable phones, flashlights, and other things. Now the [[nickel metal-hydride battery]] is being used. Nickel cadmium batteries contain toxic [[cadmium]] metal in them. It works by the [[oxidation]] of [[cadmium]] by [[nickel(III) oxide]]. [[Potassium hydroxide]] is used as an [[electrolyte]]. ==Related pages== *[[Nickel]] *[[Cadmium]] *[[Nickel(III) oxide]] *[[Rechargeable battery]] *[[Table of batteries]] {{science-stub}} [[Category:Batteries]]