alkaline storage battery

Alkaline storage batteries derive their electrical energy from chemical reactions within an alkaline solution. These rechargeable batteries can store and release electrical energy multiple times. Common types include nickel-cadmium, nickel-zinc, nickel-iron, and nickel-metal hydride batteries. Nickel-cadmium systems are widely used in portable appliances due to their ability to deliver high currents and rapid recharging, though they are heavier and have lower energy density than some alternatives. Nickel-metal hydride batteries are increasingly replacing nickel-cadmium due to higher capacity and the absence of toxic cadmium. Alkaline zinc-manganese dioxide cells are popular household batteries, offering high power density and capacity for devices like flashlights and radios.12