18650 Cylinder Cell Assembly Materials possesses 18mm x 65mm dimensions where
different components are involved in its manufacture and assembly. Its case is
considered the most important part of cylinder cells assembly, which is
available with an anti-explosive case. It is equipped with a built-in PTC thermistor for overcurrent protection. It is
made up of Nickel-plated A3 steel and seals O-ring, and the spacer is made of nylon.
Nickel strips are highly corrosive resistant. Pure Nickel is rust-resistant
when applied to batteries.