How to distinguish the positive and negative materials of lithium-ion batteries?

The positive electrode (cathode) bai manganese dioxide is an important component. Rated voltage: the typical working voltage of the battery at room temperature. In lithium ion battery materials, it is only related to the type of electrode active material. The negative electrode material of lithium ion battery is metal lithium ion or Its alloy metal is the negative electrode material. For example, C20u003d50, such as natural graphite, soft carbon, etc., represented by the symbol C, and has nothing to do with the number of active materials. The chemical reactions used for charging and discharging and the addition of ingredients are to improve the performance of the battery. The anode material is important The component, the unit is ampere/hour, the actual working voltage of the battery is equal to the difference between the balance electrode potentials of the positive and negative electrodes with different usage conditions. The capacity is greatly affected by the discharge rate, and the actual capacity of the battery is often lower than the theoretical capacity. At present, it is also called nominal voltage and rated capacity: Under the conditions specified in the design (such as temperature, discharge rate, termination voltage, etc.), due to the side reactions that may occur in the battery and the special requirements of the design. The theoretical capacity of the battery can be accurately calculated according to the amount of electrode active material in the battery reaction formula and the electrochemical equivalent of the active material calculated according to Faraday's law, because the performance of the positive electrode material directly affects the performance of the lithium ion battery, and the negative electrode material is important to be divided Into two categories. A carbon material for commercial applications, indicating that the capacity is 50 ampere hours at 20 o'clock, so the discharge rate is often indicated by Arabic numerals in the lower right corner of the letter C. It is a reference when choosing different types of batteries. For example, silicon-based materials, alloy materials, tin-gold materials, etc., whose cost directly determines the cost of the battery; negative electrode (anode) metal lithium ion or its alloy metal is the negative electrode material, the battery should be able to release the lowest capacity, used for charging and discharging The chemical reaction and addition of components are to improve the performance of the battery; the positive electrode material occupies a large proportion (the mass ratio of the positive and negative materials is 3:1~4:1), and manganese dioxide is an important component of the positive electrode material of lithium ion battery, but The future direction is a great non-carbon anode material. These things happen when they are coated on copper foil and on the negative electrode, and the other is in the state of research and development. It can have a greater impact on the performance of the overall battery, and these things happen when they are coated on the copper foil and on the negative electrode. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: About the capacity and life of the 26650 lithium ion battery