Introduction
Hi we learn today about What is nickel cadmium Battery (Ni-Cd Battery), Ni-Cd Battery (Nickel-Cadmium Battery) is a type of rechargeable battery that uses a nickel oxide hydroxide cathode and a metallic cadmium anode. It is a widely used battery technology that has been in use for several decades. Ni-Cd batteries are known for their high discharge rates and long cycle life, making them suitable for many applications.
Construction
Ni-Cd batteries consist of multiple cells, each of which is made up of a positive electrode (cathode), a negative electrode (anode), and an electrolyte. The electrodes are separated by a separator, which prevents short-circuits. The electrolyte is an alkaline solution of potassium hydroxide.
Working
When the battery is charged, the cadmium ions are oxidized at the anode, and nickel oxide hydroxide is reduced at the cathode. This process produces electrons that flow through the external circuit and can be used to power electronic devices. When the battery is discharged, the process is reversed, and the cadmium is reduced at the anode, while nickel oxide hydroxide is oxidized at the cathode. This process can be repeated many times, making Ni-Cd batteries rechargeable.
Applications:
- Cordless Power Tools: Ni-Cd batteries are used in cordless power tools such as drills and saws because they can provide high power output and are rechargeable.
- Emergency Lighting: Ni-Cd batteries are used in emergency lighting systems because they can provide long-lasting power in case of power outages.
- Medical Devices: Ni-Cd batteries are used in medical devices such as portable defibrillators and patient monitors because they can provide high power output and are rechargeable.
- Aviation and Aerospace: Ni-Cd batteries are used in aviation and aerospace applications such as aircraft emergency lighting and backup power for avionics systems.
- Two-Way Radios: Ni-Cd batteries are used in two-way radios because they can provide high power output and are rechargeable.
- Electric Toys: Ni-Cd batteries are used in electric toys such as remote-controlled cars and planes because they can provide high power output and are rechargeable.
- Portable Electronics: Ni-Cd batteries are used in portable electronic devices such as cameras and portable media players because they are rechargeable and can provide long-lasting power.
- UPS (Uninterruptible Power Supply): Ni-Cd batteries are used in UPS systems because they can provide backup power in case of power outages.