How does the NiMH battery work?
Nickel Metal Hydride (NiMH) batteries consist of two electrodes: the positive uses Nickel-Hydroxide for the cathode and the negative uses Metal Hydride for the anode. The electrodes are sandwiched together with a polymer separator to eliminate shorting. A small amount of water plus potassium hydroxide mixture (electrolyte) is added to the cell, the cell is sealed, and it is charged electrically to form a 1.2 volt electrochemical couple. Individual cells can be connected in series to make batteries in various voltage ranges. A typical module will be 12 volts.
