Nickel-Metal Hydride Battery

What Does Nickel-Metal Hydride Battery Mean?

Nickel-metal hydride battery (NiMH) is a type of rechargeable battery commonly used in many laptop computers, as well in mobile phones, camcorders and other electronic devices.

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The negative electrode of the NiMH battery is made from a hydrogen-absorbing alloy and sometimes many different inter-metallic compounds. The positive electrode is made of nickel-oxide hydroxide, the same as in Apple Nickel-Cadmium batteries.

First released in 1989, NiMH batteries have two to three times greater charge capacity and up to 40 percent longer service life than standard nickel-cadmium batteries.

Techopedia Explains Nickel-Metal Hydride Battery

First released in 1989, NiMH batteries have two to three times greater charge capacity and up to 40 percent longer service life than standard nickel-cadmium batteries. Instead of cadmium, the negative electrode is made from a hydrogen-absorbing alloy, and many different inter-metallic compounds may be used. The positive electrode is made of nickel-oxide hydroxide as in NiCd batteries.

NiMH batteries are not expensive and perform like non-chargeable alkaline primary cells. In digital cameras and other high drain electronic devices, NiMH batteries actually outperform alkaline primary cells, as well as many other batteries.

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Margaret Rouse

Margaret Rouse is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical, business audience. Over the past twenty years her explanations have appeared on TechTarget websites and she's been cited as an authority in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine and Discovery Magazine.Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages. If you have a suggestion for a new definition or how to improve a technical explanation, please email Margaret or contact her…