Introduction to the materials and advantages of ternary lithium-ion batteries

Materials for ternary lithium-ion batteries The reason why a ternary lithium-ion battery is called a ternary lithium-ion battery is because its cathode material uses a ternary polymer containing three metal elements: nickel, cobalt, and manganese (or aluminum). The ternary of the ternary lithium ion battery refers to the three elements of nickel (Ni), cobalt (Co) and manganese (Mn). Among these three elements, nickel and cobalt are active metals, and manganese does not participate in the electrochemical reaction. Generally speaking, the higher the content of active metal components, the greater the battery capacity, but when the content of Ni is too high, it will cause Ni2+ to occupy the position of Li+, which intensifies the mixing of cations, resulting in a decrease in capacity. Co is also an active metal, but it can inhibit the mixing of cations and stabilize the layered structure of the material. As an inactive metal, Mn plays an important role in stabilizing the reaction and improving safety. Nickel-cobalt-manganese ternary materials can usually be expressed as: LiNixCoyMnzO2, where x+y+zu003d1. It has been found that the ratio of nickel, cobalt and manganese in the positive electrode material of a ternary lithium ion battery can be adjusted within a certain range, and its performance varies with the ratio of nickel, cobalt and manganese. Ternary lithium-ion battery materials can achieve better cruising range due to their high energy density, and are well used in new energy vehicles. For example, Tesla’s pure electric vehicles in the United States have successfully used nickel-cobalt-aluminate lithium-ion batteries manufactured by Japan’s Panasonic system. In recent years, with the rapid development of global new energy vehicles, the market share of ternary lithium-ion battery materials will gradually increase. Ternary lithium-ion batteries have 6 major advantages: 1. Large energy density: Due to the adoption of a new generation of battery cell technology from the Ningde era, the energy density of the product is increased to 151Wh/kg while ensuring a long life. 2. High power: the battery has a high energy density, and the same battery volume can hold more power. The battery capacity has reached 53.6kWh, and one minute of power, one minute of battery life, which laid the foundation for long battery life. 3. Safe and reliable: It has undergone 30 national standard verification and 52 company standard verification, including: overcharge, overdischarge, overtemperature, short circuit, drop, extrusion, fire, mechanical shock, simulated collision, salt spray, etc. Test items. 4. Strong adaptability: The activity of ternary lithium-ion batteries will change in different working environments, which also causes different charging efficiency in different environments. The use of EMD3.0 technology integrates a number of battery active auxiliary functions, which greatly improves the convenience in the daily charging process. 5. High intelligence: due to the EMD3.0 super electronic control technology, its battery control system can have multiple intelligent safety protection measures, such as real-time battery prediction and alarm, fast charge and fast discharge protection, overcharge and overdischarge safety protection, low temperature Functions such as charging and preheating not only protect the battery and consumers' travel safety. 6. Long life: EMD3.0 super electronic control technology also has the function of self-equalization of battery cell voltage deviation, which will automatically screen and judge the voltage deviation of battery cells in the battery pack, and automatically perform equalization processing according to abnormal conditions. The deviation of the battery cell voltage is kept within the expected range, helping the vehicle to maintain a long battery life and effectively extending the battery life. 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 post: What is the correct way to charge a ternary lithium-ion battery