How Do You Spell NICKEL CADMIUM BATTERY?

Pronunciation: [nˈɪkə͡l kˈadmi͡əm bˈatəɹi] (IPA)

The spelling of "nickel cadmium battery" can be explained using IPA phonetic transcription. "Nickel" is pronounced /ʊ/ (as in "book") + /ɪ/ (as in "kit") + /l/ (as in "ball"), while "cadmium" is pronounced /k/ (as in "cat") + /æ/ (as in "hat") + /d/ (as in "dog") + /mi/ (as in "me"). Together, the two words form a compound word pronounced as "nik-uhl kæd-mee-uhm bat-uh-ree", with the primary stress on the first syllable of "nickel" and secondary stress on the third syllable of "cadmium." This type of battery is often used in portable electronic devices.

NICKEL CADMIUM BATTERY Meaning and Definition

1. A nickel cadmium battery, commonly known as an NiCad battery, is a type of rechargeable battery that has been widely used for various applications. It is composed of two primary electrode materials, namely nickel hydroxide (Ni(OH)2) on the positive electrode and metallic cadmium (Cd) on the negative electrode. These materials are separated by a porous barrier to prevent direct contact.

   The nickel cadmium battery operates based on the principle of reversible chemical reactions. During the charging process, electrical energy is supplied to the battery, causing a reduction reaction at the positive electrode where nickel hydroxide is converted into nickel oxide. At the negative electrode, cadmium is oxidized from metallic cadmium to cadmium hydroxide.

   During the discharge process, the reverse reactions take place. The chemical reactions result in the conversion of stored chemical energy into electrical energy, which can be used to power various devices. Nickel cadmium batteries are known for their high energy density, producing a relatively high amount of energy compared to their size and weight. They also have a good charge retention ability and display a stable voltage output throughout the discharge process.

   Although nickel cadmium batteries have found extensive use in the past, they have been gradually replaced by other battery technologies due to their limited capacity, high self-discharge rate, and environmental concerns associated with the use of cadmium, which is a toxic heavy metal. Despite these drawbacks, they continue to be used in certain niche applications where their unique characteristics are valued, such as in portable power tools and emergency backup systems.

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