Detailed explanation of the classification of lithium-ion batteries

Lithium-ion batteries are generally divided into two categories: Lithium metal batteries: Lithium metal batteries generally use manganese dioxide as the positive electrode material, lithium metal or its alloy metal as the negative electrode material, and use a non-aqueous electrolyte solution. Lithium ion battery: Lithium ion battery is generally a battery that uses lithium alloy metal oxide as the positive electrode material, graphite as the negative electrode material, and non-aqueous electrolyte. Although the energy density of lithium metal batteries is high, theoretically it can reach 3860 watts/kg. However, due to its insufficient stability and inability to charge, it cannot be used as a power lithium battery for repeated use. The lithium-ion battery has been developed as an important power lithium battery due to its ability to be recharged repeatedly. However, because of its combination of different elements, the composition of the cathode material has very different properties in various aspects, which has led to increased disputes in the industry over the route of the cathode material. Generally speaking, the more important power lithium batteries are iron phosphate lithium ion batteries, manganese acid lithium ion batteries, cobalt acid lithium ion batteries and ternary lithium ion batteries (ternary nickel cobalt manganese). Lithium-ion battery anode materials are roughly divided into the following categories: The first is carbon anode materials: the anode materials that have been actually used in lithium-ion batteries are basically carbon materials, such as artificial graphite, graphite, and mesophase carbon microspheres. , Petroleum coke, carbon fiber, pyrolytic resin carbon, etc. The second type is tin-based anode materials: tin-based anode materials can be divided into tin oxides and tin-based composite oxides. Oxide refers to the oxide of tin metal in various valence states. There are currently no commercial products. The third type is lithium-containing transition metal nitride anode materials, and there are currently no commercial products. The fourth type is alloy anode materials: including tin-based alloys, silicon-based alloys, germanium-based alloys, aluminum-based alloys, antimony-based alloys, magnesium-based alloys and other alloys. There are currently no commercial products. The fifth type is nano-scale anode materials: carbon nanotubes, nano-alloy materials. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Introduction to the characteristics of hydrogen fuel power batteries