What is the classification and principle of lithium-ion batteries for electric vehicles

How to classify lithium-ion batteries for electric vehicles? Lithium-ion batteries for electric vehicles can be roughly divided into lithium-ion batteries and lithium-metal batteries. Among them, lithium-metal batteries were first proposed and studied by Gilbert N. Lewis in 1912. However, due to the very active chemical properties of lithium metal, the production and use of lithium metal have environmental requirements. Very high, such as easy to cause explosions and other safety accidents, so it is difficult for lithium metal batteries to be commercially used. Lithium-ion batteries were not invented and manufactured by Exxon until 1970. As the materials for lithium-ion batteries can be diversified, the production cost can be reduced, and after years of safety testing, Sony finally launched the first commercial lithium-ion battery in 1991. Batteries have thus revolutionized the appearance of consumer electronics products, and have gradually been applied to emerging fields such as energy storage power systems, uninterrupted power supplies for post and telecommunications, power tools, military equipment, and aerospace, especially in the field of electric vehicles. 2. What is the technical principle of lithium-ion batteries for electric vehicles? An electric vehicle lithium-ion battery is a battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution. The lithium metal battery uses manganese dioxide as the positive electrode material and metal lithium or lithium alloy as the negative electrode material. For batteries with aqueous electrolyte solutions, the discharge reaction formula is Li+MnO2u003dLiMnO2; for lithium-ion batteries, lithium alloy-based metal oxides are used as the positive electrode material, graphite is the negative electrode material, and batteries using non-aqueous electrolyte solutions are charged as the positive electrode. The reaction formula is LiCoO2u003du003dLi(1-x)CoO2+XLi++Xe- (electrons), the negative electrode reaction formula during charging is 6C+XLi++Xe-u003dLixC6, and the total reaction formula of the rechargeable battery is LiCoO2+6Cu003dLi (1-x) CoO2+LixC6; The production cost of lithium-ion batteries for electric vehicles mainly comes from the four parts of the cathode material, anode material, separator and electrolyte, of which the cathode material cost has reached 30%. Statement: The article published on this site The pictures and content are from the Internet, if there is any infringement, please contact to delete