Lithium battery classification

Lithium batteries can be divided into two major categories:-secondary non-rechargeable batteries and secondary rechargeable batteries (also known as batteries)Non-rechargeable batteries such as lithium manganese dioxide batteries, lithium sulfimide batteries.

Secondary rechargeable batteries can be divided into the following classifications according to different situations.

1. Divided by appearance: square lithium battery (such as ordinary mobile phone battery) and cylindrical lithium battery (such as 18650 for power tools);

2. Divided by outsourcing materials: aluminum shell lithium battery, steel shell lithium battery, soft pack battery;

3.According to the cathode material: lithium cobalt oxide (LiCo02), lithium manganese oxide (Liln204), ternary lithium (LiNi_CO, JMIn, 02), lithium iron phosphate(LiFePO4);

4.According to electrolyte status: lithium ion battery (LIB) and polymer battery (PLB);

5. Divided by purpose: ordinary batteries and power batteries.

6. According to performance characteristics: high-capacity battery, high-rate battery, high-temperature battery, low-temperature battery, etc.

Cylindrical battery

The naming method, such as the cylindrical 18650 model, means that the battery core is 18mm in diameter and 65mm in length, and 0 means cylindrical battery. 18650 battery life theory is 1000 cycles of charging. Due to the large capacity per unit density,So most of them are used in laptop batteries. In addition, because the 18650 has a very good stability at work, it is widely used in various electronic fields: often used in high-end bright flashlights, portable power supplies, wireless data transmitters,Electric thermal clothing, shoes, portable instruments, portable lighting equipment, portable printers, industrial equipment, medical equipment, etc.

Polymer batteries

The difference between polymer batteries and traditional lithium-ion batteries lies in the production process. Lithium batteries are wound and are relatively soft. The polymers are superimposed and have a harder body. With the same volume of polymer and lithium batteries, the capacity of the polymer is larger, about 30% higher.

And it is safer and has a low risk of explosion. long lasting. The charge and discharge reached more than 500 times. The disadvantage is that the cost is high. Polymer batteries with the same capacity are at least 100% more expensive than 18650 lithium ion batteries.

We devoted to LiFePO4 battery R&D, manufacture since 2008. Our LiFePO4 cell manufacturing facilities locates in Yichang & Jingmen,Hubei Provice. Fully automatic production lines ensure the consistency of quality.

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