Definition, structure and advantages of cylindrical lithium batteries

1. Definition of cylindrical lithium battery:

Cylindrical lithium batteries are divided into lithium iron phosphate, lithium cobalt acid, lithium manganese acid, cobalt manganese mixture, 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, this battery performance is high capacity, high output voltage, good charge-discharge cycle performance, output voltage stability, can large current discharge, electrochemical performance stability, reliable use, wide operating temperature range, friendly to the environment, Widely used in solar lamps, lawn lamps, back-up energy, power tools, toy models.

Cylindrical lithium battery

2, cylindrical lithium battery structure:

A typical cylindrical battery structure includes: shell, cap, positive electrode, negative electrode, 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 made of nickel-plated steel plate.

3. Advantages of cylindrical lithium batteries:

Compared with soft pack and square lithium battery, cylindrical lithium battery has a long development time, a higher degree of standardization, a more mature technology, high yield and low cost.

Mature production technology, low PACK cost, high yield of battery products, good heat dissipation performance

Cylindrical battery has formed a series of international unified standard specifications and models, mature technology, suitable for mass continuous production.

The surface area of the cylinder is large and the heat dissipation effect is good.

Cylindrical batteries are usually sealed batteries, and there is no maintenance problem during use.

The battery shell can withstand high voltage, and will not appear in the process of use, such as square, flexible packaging battery expansion phenomenon.

Jiangmen Hongli Energy Co., Ltd. is a professional lithium battery solution supplier integrating scientific research, development, production and sales. Our main products are CR123A, CR2, CR1/3N, CR14250, CR14505, CR17450, CR17500, CRP2 and 2CR5. The factory adopts advanced automated production equipment and testing equipment to ensure high manufacturing standards and stable supply capacity. With an annual output of more than 40 million batteries, the products are mainly exported. All circles are welcome to consult and understand.

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