How to ensure the balance between the performance and safety of power lithium batteries

Why does the power lithium battery need not blindly follow the trend in pursuit of high energy density? With the development trend of new energy vehicles, the driving force of lithium battery technology is also continuing to improve. At this stage, the specific energy of the lithium iron phosphate battery is 160wh/kg, and the specific energy of the system is 130. The specific energy of the 18650 using the NCA management system has reached 240Wh/kg, and the specific energy of the system software has reached 150Wh/kg. In addition to the continuous addition of power and energy policies and regulations, the reduction in subsidies has also caused more stringent cost regulations for power engineering lithium battery companies. How the company chooses to become a manufacturing industry has been paid attention to. New energy vehicle production and manufacturing should not only attach great importance to the density of rechargeable lithium batteries, but also integrate the light weight of the car body and reduce energy consumption. There is a certain correlation between the magical kinetic energy of lithium batteries in power engineering and the safety factor. The higher the kinetic energy, the higher the safety standards. At this stage, the pursuit of perfect rechargeable battery kinetic energy ratio cannot be immediately improved, and the policy does not need to be too stimulating mileage. . How to ensure the balance between the vehicle performance and safety of the power lithium battery? There are many ways to increase the mileage of new energy vehicles. The most immediate way is to increase the output power of rechargeable batteries and increase the output power of rechargeable batteries. The key to improving the specific energy of power lithium batteries is the nickel component in the positive electrode material of the rechargeable battery. The higher the nickel content, the higher the specific energy of the driving force lithium battery, the worse the reliability of the rechargeable battery, and the heating of the rechargeable battery The greater the chance of not being manipulated. Lithium battery processing and manufacturing companies must strictly control the nickel in the raw materials of lithium batteries, so that the high-efficiency electric energy of perfectionists has low relative density and low cost, and there is no need to blindly follow the crowd to add nickel components. The key is to grasp the safety elements, not the more important ones. Characteristics, the relevant car team, it is better to reduce the mileage of the car and the quality of maintenance, rather than simply adding rechargeable batteries to get the mileage. The general trend of ternary batteries is in 2017. When the total output power of lithium batteries is 100 million watt-hours, the total output of lithium batteries has increased by 33% year-on-year. As everyone knows, compared with the 150 equipment in 2017, the number of companies has dropped to less than 100, and the general trend of high-efficiency kinetic energy density has become the general trend of the development trend of three-dimensional rechargeable batteries. With the increase in state subsidies and the comparison of power and energy management and control, the company should continue to improve its technological level. New Energy Development Technology Co., Ltd. announced that two new products are new energy buses. The special-purpose vehicle market sells 135ah, three-dimensional square aluminum shell lithium batteries with an energy density of 215wh/kg and a cycle system life of 3000 times; the special-purpose vehicle market is sold as 115ah lithium battery, the life of the respiratory system is 10,000. The magical kinetic energy of lithium batteries in power engineering is the most vivid indicator value of mileage. By 2020, a lithium battery power engineering ratio is 350wh/kg, a new new energy vehicle will have the same physical strength as a fuel vehicle. According to the current stage of the lithium battery raw material intelligent management system and technical development trends, with the help of new lithium battery packaging technology, the system compares electric energy. As everyone knows, compared with the Kangjia cylinder rechargeable battery currently used by Tesla Motors, the specific energy of the domestic driving force lithium battery is still very different, and the safety performance and consistency of the product need to be improved. Therefore, in our country, driving force lithium battery companies should attach great importance to improving product safety performance, rather than blindly following the trend to pursue perfect, high-efficiency power energy density and wind speed in order to guard against processing safety accidents. 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: Performance characteristics of lithium battery positive and negative materials