Cylindrical lithium battery is divided into lithium iron phosphate, lithium cobalt acid, lithium manganese acid, cobalt manganese mixed, ternary material system, shell is divided into steel shell and polymer two, different material system battery has different advantages.
What is cylindrical lithium battery?
Cylindrical lithium battery is divided into lithium iron phosphate, lithium cobalt acid, lithium manganese acid, cobalt manganese mixed, ternary material system, shell is divided into steel shell and polymer two, different material system battery has different advantages. At present, the cylinder is mainly steel shell cylindrical lithium iron phosphate battery, the performance of this battery is high capacity, high output voltage, good charge-discharge cycle performance, stable output voltage, large current discharge, stable electrochemical performance, safe use, wide operating temperature range, friendly to the environment, Widely used in solar lamps, lawn lamps, backup energy, power tools, toy models.
Two, cylindrical battery structure
A typical cylindrical battery structure includes: housing, cap, anode, cathode, diaphragm, electrolyte, PTC element, gasket, safety valve, etc. Generally, the battery shell is the negative electrode of the battery, the cap is the positive electrode of the battery, and the battery shell is nickel-plated steel plate.
Three, the advantages of cylindrical lithium battery
Compared with soft pack lithium battery and square lithium battery, cylindrical lithium battery has the longest development time, higher standardization degree, more mature technology, high yield and low cost.
1. Mature production process, low PACK cost, high yield of battery products, good heat dissipation performance
2, cylindrical battery has formed a series of international unified standard specifications and models, mature process, suitable for mass continuous production.
3. The specific surface area of the cylinder is large and the heat dissipation effect is good.
4, cylindrical battery is generally sealed battery, there is no maintenance problem in the process of use.
5, the battery shell has high voltage resistance, and there will be no such phenomenon as square, flexible packaging battery expansion in the use process.
