The ternary lithium-ion battery has high energy density and how is its safety performance?

Ternary polymer lithium ion battery: the never-ending future professional lithium-ion battery customizer Ternary polymer lithium ion battery refers to the use of lithium cathode material (Li (NiCoMn) O2 ternary cathode material lithium ion battery, ternary composite anode) Material precursor products, with nickel salt, cobalt salt, and manganese salt as raw materials, the ratio of nickel, cobalt, and manganese can be adjusted according to actual conditions. Ternary lithium-ion batteries have high energy density, but their safety is often questioned. The reason is Even if these two materials are decomposed at a certain temperature, ternary lithium decomposes at a low temperature of about 200 degrees, while lithium iron phosphate decomposes at a low temperature of about 800 degrees. In addition, the chemical reaction of ternary lithium materials is more intense, Oxygen molecules will be released. In high-temperature applications, the electrolyte will burn rapidly and a chain reaction will occur. Simply put, ternary lithium is more likely to catch fire than lithium iron phosphate. But it should be noted that we are talking about materials, not The completed battery. Because of the potential safety hazards of ternary lithium, manufacturers are also working hard to curb the development direction of the accident. According to the characteristics of easy pyrolysis of ternary lithium materials, manufacturers will increase in OVP, UVP, OTP, OCP, etc. Therefore, spontaneous combustion incidents should give more consideration to whether the manufacturer’s functions are in place in these links, rather than simply giving up eating because of fear of suffocation. How is the current use of these two batteries? Let us focus on one group Data. In November, 64.9% of electric buses were loaded with lithium iron phosphate batteries, compared with 27.6% of ternary lithium-ion batteries. In contrast, in the all-electric passenger car market, last year In November, ternary lithium-ion batteries accounted for more than 76% of the total installed capacity. It can be seen that ternary lithium-ion batteries have the advantage of higher energy density and should be born as a new energy storage device for future automobiles. And now Related safety accidents, when the popularization of new energy vehicles is still in its infancy, it can be said to be a good thing. In order to achieve the dual goals of market access and policy support, many new energy vehicle-related companies have relaxed their technical requirements, and mass production cannot be long-term. Reusable energy components. The working environment of automobiles is harsh. The long-term use of these components will inevitably greatly increase the occurrence of safety accidents. Therefore, we can think that Zhang Xiangmu, director of the equipment department, Ministry of Industry and Information Technology announced The safety performance evaluation of ternary lithium-ion batteries for passenger cars in China’s 100 People’s Congress of Electric Vehicles is that the relevant state departments intend to carry out the standard meaning from the policy level in order to promote the emergence of industry standards. Whether it is for consumers or manufacturers, the future will have very Positive meaning. Therefore, there is no need to reserve because of the one-sidedness of the ternary lithium-ion battery safety accident information on the Internet. The material is dangerous. The key is how to firmly control it. Disclaimer: Some pictures and content of articles published on this site are from On the Internet, if there is any infringement, please contact to delete the previous article: How to solve the conductivity problem of the positive and negative electrodes of the lithium iron phosphate battery?