What is a nickel-cadmium battery?
A nickel-cadmium battery is a type of battery. (1)
What do nickel-cadmium batteries contain?
use nickel oxide hydroxide and metallic cadmium as electrode materials (1)
While not entirely obsolete yet, NiCad batteries are becoming less popular as lithium batteries take over the rechargeable battery market. (1)
Resources
1. https://dragonflyenergy.com/types-of-lithium-batteries-guide/
