What is the structure and composition of a lithium battery?
With the development of technology, lithium batteries have also made great progress and are becoming more widely used. In fact, the structure of lithium batteries is divided into two categories: split winding and stacked. The lithium battery structure then consists essentially of five large blocks: positive electrode, negative electrode, electrolyte, diaphragm, outer housing, and electrode cable.
Lithium batteries are then divided into two types of lithium batteries, one lithium battery, one lithium battery, wherein the lithium battery uses the winding structure and the polymer lithium battery has two.
The wound positive electrode film, separator and negative electrode film are placed sequentially and wound into a cylindrical shape or a flat cylindrical shape and are mainly represented by SANYO, TOSHIBA, SONY and ATL. The stacked type is stacked in multiple layers such as a positive electrode, a separator, a negative electrode, a separator and a positive electrode. All positive electrodes are welded together and the negative electrodes are welded together, mainly represented by ATL.
The lithium battery materials currently used are lithium cobaltate, lithium nickelate and lithium manganate. The most commonly used material is lithium cobaltate, which has good cycle performance and is easy to manufacture. The disadvantage is that cobalt compounds are more expensive. Because of its unstable nature, lithium nickel is difficult to produce. It is generally used as a nickel cobalt doped nickel compound, also known as lithium nickel cobaltate. Lithium manganate is also a very good material, and at high temperatures, the decomposition of lithium manganate is relatively rapid, and many other causes are still in the laboratory stage.
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