There are two common naming formats for lithium batteries: one is named by numbers, and the other is named according to the material used in the positive electrode of the lithium battery. Number naming is not just a few numbers, which has meaning, as for the second naming way is very easy to understand. As a common example, that is, 18650 lithium battery, in fact, the front number is defined according to the appearance of the lithium battery size, which refers to the appearance of the size? Let's take a look.

The strict meaning of the 18650 lithium battery is that the size of the single cell: 18 is the diameter of the representative, 65 is the height of the representative, 0 is the appearance of the cylinder, the unit here is millimeter. That is to say, as long as the lithium battery of this size is called 18650 lithium battery, of course, there will be some errors in the 18650 lithium battery produced by different manufacturers, but in fact, the error is not very large, equivalent to no, of course, this is for regular manufacturers, no qualified manufacturers that can not be guaranteed. If multiple lithium batteries are combined, it is the battery pack, and if the 18650 lithium battery is combined, it is the 18650 lithium battery pack.

There are many kinds of cathode materials for 18650 batteries, and the most common ones are ternary lithium batteries and lithium iron phosphate batteries. This way of naming is to say its positive electrode material. Ternary is the general name of three materials, nickel, cobalt and manganese, in practical applications, the ratio of these three materials will affect the performance of the battery.

portable chainsaw lithium batteries named with numbers, common not only 18650 lithium batteries, but also 26650 lithium batteries, 21700 lithium batteries and so on. As for the difference between ternary and lithium iron phosphate lithium battery is: ternary lithium battery has high energy and power, lithium iron phosphate battery has higher safety performance, and can be selected according to different application scenarios when in actual use.

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