Cylindrical lithium battery can be divided into lithium cobalt acid, lithium manganese acid, ternary materials. Three types of material safety system battery has its own advantages and disadvantages, battery is widely used in computer notebook, digital camera, lighting equipment, electric toy enterprise products, power tool accessories, handheld mobile energy and other fields.
So far, cylindrical key dominated by aluminum shell cylindrical lithium iron phosphate battery, so the outstanding performance of the battery for high capacity, high output voltage, excellent charge and discharge cycle can safety performance, stable output voltage, large current discharge, electrochemical safety performance is stable, safe and reliable operation, wide working temperature scope, no pollution to the environment. Let's take a look at the advantages and disadvantages of cylindrical lithium iron phosphate batteries.
Advantages of cylindrical lithium iron phosphate battery:
1. Good monomer unity. Cylindrical lithium battery has long established a series of international unified standard specifications and models, the processing technology is mature and perfect, suitable for a large number of batches of continuous production and manufacturing
2. Good mechanical properties of monomer material. The specific surface area of the cylinder is large, the heat pipe heat dissipation effect is very good, can get higher bending strength;
3. The technology application is mature and perfect, and the cost is low. The metal shell of the battery has high pressure resistance, and it is not easy to produce such conditions as square and flexible packing battery swelling during the whole operation
4. Small monomer energy, small chance of multiple accidents. In the event of an accident, the form is easy to control. Cylindrical batteries are usually sealed batteries, and there are no maintenance problems throughout the operation
Disadvantages of cylindrical lithium iron phosphate battery:
1. The processing technology of cylindrical lithium battery welding multi-pole lug is limited, so the multiplier characteristics are slightly weak, and there is no such outstanding multiplier result.
2. The organic chemical performance at the corner edge of the cylindrical battery is poor, and the performance of the battery for long time operation is relatively significant.
3. It is incompatible with common batteries because lithium ion batteries can be replaced only when three common batteries (3.6V) are used.
4. Be sure to have a unique protection circuit to avoid overcharging or overreleasing;
5. Relatively high cost, mainly due to the high price of battery cathode material LiCOO2. With the continuous and rapid development of the application of cathode technology, LiMn2O4, LiFePO4 and other cathode can be selected, so it is expected to greatly reduce the cost of lithium ion battery
