The lithium battery cap is a component of the lithium battery, which acts as a positive conductive terminal on the lithium battery, acts as a safety valve, and also provides a battery sealing function.
Lithium battery cap includes top cover, rubber ring, explosion-proof diaphragm, aluminum sheet/nickel sheet and orifice plate.
During installation, the explosion-proof diaphragm and the orifice plate are welded together by laser spot welding at the welding point recess of the orifice plate, so that laser welding spots will be left in the welding point recess. The laser welding spot is closely combined with the concave part of the welding spot.
