Lithium battery is a kind of battery which is made of lithium gold explosion-proof battery or lithium alloy as electrode material and non-aqueous electrolyte solution. Because the chemical characteristics of lithium metal are very active, it is difficult to process and store lithium metal. The production cost is relatively high, so lithium battery has not been widely used in the long run. In recent years, with the continuous maturation of lithium-lithium compound and lithium battery diaphragm technology and commercial scale production, the cost is greatly reduced, because of its light weight, large capacity, long life, no pollution and other significant advantages. Lithium batteries will gradually replace lead-acid batteries, which have become the mainstream products of batteries. It will be used in many fields, such as electric tools, electric bicycles, electric motorcycles, electric cars, military equipment, aeronautics and Astronautics, and all kinds of mobile power supplies required for daily life, mobile power supply, various emergency lights, flashlights, razors, cameras, cameras, photovoltaic lamp batteries and so on.
Lithium batteries are divided into two kinds, one is liquid lithium battery, one is polymer lithium battery, in which the liquid lithium battery has a winding structure and two kinds of lithium battery. The structure of lithium battery can be divided into two categories: winding and stacking. The structure of lithium battery is mainly composed of five blocks, namely: positive electrode, negative electrode, electrolyte, separator, shell and electrode lead.
The winding type of positive electrode diaphragm, diaphragm and negative electrode are arranged in good order, and are wound into cylindrical or flat columns, mainly represented by SANYO, TOSHIBA, SONY and ATL. Stacking will stack the way of positive pole, diaphragm, negative pole, diaphragm and positive pole. All the positive electrodes are welded together, and the negative electrodes are also welded together, which is mainly represented by ATL.
