The Nickel-Metal-Hydride Battery

• Here's a little NiMH Battery FAQs history. Research on the nickel-metal-hydride system started in the 1970s as a means of storing hydrogen for the nickel hydrogen battery.
• Today, nickel hydrogen is used mainly for satellite applications.
• Nickel hydrogen batteries are large, require high-pressure steel canisters and are costly.
• In the beginning, metal hydride alloys were unstable in the cell environment and the desired performance characteristics could not be achieved.
• As a result, nickel-metal hydride development slowed down.
• More stable hydride alloys were developed in the 1980s, leading to more improved nickel-metal hydride technology.