Explanation

Also known as bond metal hydride battery (Ni MH). It is improved from nickel-cadmium battery. Replacing cadmium (Cd) with a metal that can absorb hydrogen is a secondary cell composed of imermetallif compound and hydrogen as a matrix (such as NiMH or Ni-MH). The main advantages of nickel hydrogen battery are that its electric capacity reserve is 30% more than that of nickel-cadmium battery, it is lighter than that of nickel-cadmium battery, and its service life is longer and it has no pollution to the environment_ The imermetallif compound in hydrogen batteries can be divided into two categories. The most common is AB5 type imermetallif compound, and the A side is a mixture of rare earth elements (or) plus titanium (Ti); On the B side are nickel (Ni), cobalt (Co), manganese (Mn), and/or aluminum (Al). Another type of high capacity battery contains a variety of components, "the electrode is mainly composed of hexagonal metal interconnects. The A side is titanium (Ti) or vanadium (V). The B side is zirconium (Zr) or nickel (Ni), plus some chromium (Cr), cobalt (Co), iron (Fe) and/or manganese (Mn). All these compounds play the same role: reversibly forming metal hydride. When the battery is charged, the hydrogen ion (H+) in the potassium hydroxide (KOH) electrolyte It will be released and absorbed by imermetallif compound to avoid the formation of hydrogen

Classification