Nickel hydride

Nickel hydride refers to a compound formed when nickel, a metal, bonds with hydrogen atoms. It’s commonly found in rechargeable nickel-metal hydride (NiMH) batteries, where it acts as the negative electrode (anode). In these batteries, nickel hydride materials can store hydrogen within their structure, allowing the battery to charge and release energy efficiently. The metal-hydrogen bond in nickel hydride provides stability and reversibility, enabling the battery to undergo many cycles. This technology is valued for its durability, safety, and relatively high energy density compared to other types of rechargeable batteries.