Are square lithium-ion battery cells good?

1. Normal temperature and wide temperature lithium-ion battery cells Generally, warm lithium-ion cells are the most widely used lithium-ion cells. The most important application is ordinary and stable low-current discharge products. As long as the battery cells are safe and do not explode and spontaneously ignite, they have high capacity. And long life is enough, and there are no special performance requirements. This kind of battery cell has a low threshold in processing and manufacturing technology, so the market price is rather chaotic. Generally speaking, the quality and performance of the battery cell manufacturers with strong strength should be safer and more reliable, and the price will be slightly more expensive. Of course, if the quantity is large enough, the price will also tend to average. At present, the price quotation of brand new high-quality lithium-ion batteries is around 8 yuan 1Ah. Poor quality, that is, relatively poor cycle life, easy to use internal short circuit and bulging, large self-discharge, large internal resistance, etc., the price may be around 5 yuan. 2. Low-temperature lithium-ion batteries At present, there are no low-temperature lithium-ion batteries with excellent performance. A strong low-temperature battery manufacturer like Grip Battery. The performance reference data of processed low-temperature lithium-ion battery cells is as follows: Gree High-rate discharge performance of ordinary low-temperature lithium-ion batteries: low-temperature high-rate lithium-ion batteries can be used as ordinary low-temperature lithium-ion batteries, of course, the price is definitely different. Under low temperature environment, it supports 3C～5C rate discharge for 3～5 seconds, and pulse discharge can reach about 55C. The difference between low-temperature lithium-ion battery cells and ordinary lithium-ion battery cells is important in the electrolyte formulation and additives. Due to the need to work in harsh environments, the materials have certain particularities. Therefore, low-temperature lithium-ion batteries are slightly more expensive. 3. High-rate lithium-ion batteries The square high-rate lithium-ion battery cells, as the name suggests, are specially developed and manufactured for high-current discharge, and most of them are used in power equipment. Generally, batteries with a discharge rate of 10C or below are low-rate discharges, 10C to 25C are medium-rate, and those discharged above 25C are high-rate batteries. High-current discharge has high requirements on the performance of the battery cell. It not only has to meet a certain high temperature performance, it can still work at around 70°C without spontaneous combustion or explosion, and it can work for a certain time and cycle times at such a high temperature. Square high-rate lithium-ion batteries have higher quality requirements than low-rate batteries in terms of battery separators, electrode materials, and electrolytes. Naturally, their manufacturing costs and selling prices are relatively higher. 4. Low-rate lithium-ion batteries Low-rate lithium-ion batteries have the performance of ordinary polymer lithium-ion batteries, but their performance in continuous rate discharge is much better than ordinary lithium-ion batteries. These batteries are mostly used in electric toys or Some portable electrical equipment that occasionally or frequently discharges large currents. If low-rate lithium-ion batteries are customized in large quantities, the price is similar to that of ordinary lithium-ion batteries, but in small quantities, they will be slightly more expensive. 5. Liquid electrolyte lithium ion batteries Liquid electrolyte lithium ion batteries are the earliest electrolyte used in lithium ion batteries. In the same application, the liquid electrolyte lithium ion batteries are the lowest in processing and manufacturing costs, while processing and manufacturing The technical level of the equipment is also the lowest, so it has a great advantage in price, but the conductivity depends on the specific situation. If it is in a low temperature environment, the current technology level, the performance of the liquid electrolyte lithium-ion battery is the worst. 6. Colloidal electrolyte lithium-ion batteries colloidal electrolyte lithium-ion batteries have higher processing and manufacturing technology requirements, and the cost of battery processing and manufacturing is relatively expensive, so there are not many manufacturers that can make such batteries, so they are on the market. Relatively rare. The colloidal electrolyte has better performance when applied in the low temperature field, and the capacity (energy density) is also higher than that of the liquid electrolyte. At the same time, there is no risk of leakage, but there will be bulging. 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: What are the disadvantages of lithium iron phosphate?