Nickel oxyhydroxide battery cells. Nickel oxyhydroxide battery Nickel oxyhydroxide battery (abbr. NiOx, IEC code: Z) is a type of primary cell. It is not rechargeable and must be disposed after a single use. NiOx batteries can be used in high-drain applications such as digital cameras. NiOx batteries used in low-drain applications, have a lifespan similar to an alkaline battery. NiOx batteries produce a higher voltage (1.7V) than alkaline batteries (1.5V) which can cause problems in certain products, such as equipment with incandescent light bulbs (such as flashlights/torches), or devices without a voltage regulator. The nickel oxyhydroxide cell is different from a standard alkaline
Silver-oxide battery 2 Zn + 4 OH. The process is continued until the cell potential reaches a level where the decomposition of the electrolyte is possible at about 1.55 volts. This is taken as the end of a charge, as no further charge is stored, and any oxygen that might be generated poses a mechanical and fire hazard to the cell. Compared to other batteries, a silver-oxide battery has a higher open-circuit voltage than a mercury battery, and a flatter discharge curve than a standard alkaline battery. Experimental new silver–zinc technology (different to silver-oxide) may provide up to 40% more run time