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
Zinc–air battery metal Platinum and Iridium catalysts. The resulting primary zinc-air battery showed peak power density of ~265 mW/cm, current density of ~200 mA/cm at 1 V and energy density >700 Wh/kg. Rechargeable Zn-air batteries in a tri-electrode configuration exhibited an unprecedented small charge–discharge voltage polarization of ~0.70 V at 20 mA/cm, high reversibility and stability over long charge and discharge cycles. In 2015, researchers announced a carbon-based, metal-free electrocatalyst that works efficiently in both reduction and oxygenation reactions. Organic compound aniline, polymerized into long chains in a phytic acid solution, was freeze-dried into a stable, mesoporous carbon aerogel with 2-50 nm