Are blade batteries using lithium iron phosphate technology safer than lithium-ion batteries?

This question can be answered from several aspects. As a positive electrode material, there is a big difference between the stability of the positive electrode material of lithium iron phosphate and ternary lithium ion batteries. This difference also leads to the difference in safety, which is also the most fundamental. Secondly, the structure of the battery cell will also affect the safety of the battery, and finally the PACK technology of the battery also has a great impact on the safety of the battery. First, regarding the cathode material of lithium iron phosphate, this is the most fundamental and core factor that determines battery safety. We all know a statistical data. In the spontaneous combustion accidents of electric vehicles last year, more than 80% of them were spontaneously combusted. Faults are all caused by ternary lithium-ion batteries, and only 7% of spontaneous combustion accidents are caused by lithium iron phosphate batteries. From this data, it can also be seen indirectly that the safety of ternary lithium-ion batteries is indeed inferior to that of lithium iron phosphate. The fundamental reason is the poor stability of ternary lithium-ion battery materials. There are different ratios of ternary lithium-ion batteries, cobalt-nickel-lithium ion, and the energy density of the battery will increase as the nickel content increases, but The subsequent negative use is the decrease in stability, which ultimately leads to the emergence of safety hazards. The lithium iron phosphate material itself is relatively stable, and the volume change with use is small, so it is safer. Second, the question is about the blade battery. This involves the other two points mentioned above. One is the battery cell and the other is the PACK technology. Due to the special design of the blade battery, the probability of internal short circuit is very small. This is also one of the reasons for more safety. There is also the PACK technology. The structural parts of the blade battery are reduced, and the wiring harness arrangement is simple, which can effectively reduce the risk of short circuit. In addition, the honeycomb structure of the blade battery can effectively strengthen the strength of the battery. Strengthen security. 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 article: How to extend the life of lithium-ion battery?