Lithium primary battery (Primary Lithium Battery), is a high-energy chemical original battery, commonly known as lithium batteries. A metal lithium is a negative electrode, a solid salt or a salt soluble in an organic solvent is an electrolyte, a metal oxide or other solid, and the liquid oxidant is a positive electrode active. The general lithium manganese dioxide (Li / MnO₂) batteries and the lithium fluorocarbon [Li / (CFx) n] batteries are represented by the letters CR and BR, respectively, and the subsequent numbers indicate the battery type. Lithium primary batteries are collectively referred to as a series of chemical power supplies that use metallic lithium as the anode material.

Lithium primary battery nominal voltage of 1.5V and 3.0V level two. Lithium battery has a button, roll cylindrical and rectangular and other structures. Lithium primary battery has a higher energy than the energy, long life, leakage and other advantages. Lithium battery structure is common with cylindrical carbon package, square laminated, cylindrical laminated, cylindrical winding, square winding and so on.