Steel shell / aluminum shell / cylindrical / flexible packaging series:
(1) Cathode - the active substance is generally lithium manganate or lithium cobalt oxide, nickel cobalt lithium manganate material, electric bicycles are generally used nickel cobalt lithium manganese oxide (commonly known as ternary) or ternary + a small amount of lithium manganate, pure lithium manganate and lithium iron phosphate due to large volume, poor performance or high cost and gradually fade. The conductive current collector uses electrolytic aluminum foil with a thickness of 10-20 microns.
(2) Diaphragm - a specially formed polymer film, the film has a microporous structure, allowing lithium ions to pass freely, while electrons can not pass.
(3) Anode - the active material is graphite, or carbon with an approximate graphite structure, and the conductive collector uses electrolytic copper foil with a thickness of 7-15 microns.
(4) Organic electrolyte - dissolve carbonate solvents with lithium hexafluorophosphate, and use gel-like electrolytes for polymers.
(5) Battery shell - divided into steel shell (square type is rarely used), aluminum shell, nickel-plated iron shell (cylindrical battery use), aluminum plastic film (flexible packaging), etc., as well as the battery cap, is also the positive and negative pole of the battery [