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Usually, the most important power lithium batteries we say are lithium iron phosphate batteries, lithium manganese acid batteries, lithium cobalt acid batteries and ternary lithium ion batteries. So, what are the types of lithium-ion batteries?

First, according to the internal material lithium-ion batteries are usually divided into two categories

Lithium metal battery: Lithium metal battery is generally the use of manganese dioxide as the positive electrode material, lithium metal or its alloy metal as the negative electrode material, the use of non-aqueous electrolyte solution of the battery.

Lithium-ion batteries: Lithium-ion batteries generally use lithium alloy metal oxide as the positive electrode material, graphite as the negative electrode material, the use of non-aqueous electrolyte batteries.

Although lithium metal batteries have a high energy density, they can theoretically reach 3,860 watts/kg. However, due to its unstable nature and non-rechargeable, it cannot be used as a power lithium battery for repeated use. Lithium-ion batteries have been developed as important power lithium batteries because of their ability to be recharged repeatedly. However, because of its coordination with different elements, the composition of the positive electrode material has great differences in performance in all aspects, resulting in increased disputes in the industry over the positive electrode material route.

Two, divided by use

The first is a digital lithium-ion battery, which is our daily use of mobile phones, tablets, mobile power supplies, etc., which are digital batteries.

The second is the power lithium-ion battery, that is, Tesla, BYD some new energy electric vehicles, as well as drones and other products with batteries, these batteries require a large instantaneous current, digital batteries can not meet the instant high current, so this type of battery is also called high rate battery, the price is more expensive than digital batteries.

Three, according to the shell material

The first type, steel battery, as the name suggests, the shell is steel.

The second category, aluminum shell battery, the same shell is aluminum material.

The third type, polymer lithium-ion battery, the shell is a polymer material, mostly silver, a few manufacturers do black, the industry has become black.

Four, by shape

The first kind, cylindrical battery, this use a lot, like 18650,26650, etc., this general combination of use, the combination of relatively few can be used as digital products, like early laptops, generally 8 18650, mobile power, a combination of one to five or six, and Tesla's more than 7000 series parallel combination of 18650.

The second kind, square battery, most of these are polymer batteries, because this polymer is very malleable, can make a lot of shapes, length, width and height can be adjusted at will, and most digital products are now using this kind of battery.