Nickel-cadmium Batteries

Nickel-cadmium Batteries

Nickel-cadmium batteries, also known as NiCad batteries, are a type of rechargeable battery that uses nickel oxide hydroxide and metallic cadmium as electrodes. They were first developed in the early 20th century and have been widely used in a variety of applications, including portable electronics, power tools, and emergency lighting. One of the key advantages of nickel-cadmium batteries is their high energy density, which allows them to store a large amount of energy in a relatively small space. They are also capable of delivering high currents, making them well-suited for applications that require a lot of power. In addition, they are relatively inexpensive and have a long cycle life, meaning they can be recharged and used many times before needing to be replaced. However, nickel-cadmium batteries also have some drawbacks. They are prone to a phenomenon known as the memory effect, in which they gradually lose their capacity if they are not fully discharged before being recharged. They also contain toxic cadmium, which can be harmful to the environment if not disposed of properly. Despite these limitations, nickel-cadmium batteries remain a popular choice for many applications, particularly in situations where high power output and long cycle life are important.

rechargeable, electrodes, energy density, cycle life, memory effect

— Brian Martinez

CITATION : "Brian Martinez. 'Nickel-cadmium Batteries.' Design+Encyclopedia. https://design-encyclopedia.com/define/nickel-cadmium-batteries?E=376485 (Accessed on October 14, 2026)"