Analysis of 18650 lithium battery and lithium iron phosphate battery

The cathode materials of lithium batteries mainly include acid, acid, acid, ternary material, acid iron, etc. Then add the word power to the name, that is, lithium iron phosphate power lithium-ion battery. Some people call it an iron (life) power lithium-ion battery. Advantages of acid iron battery: 1. The life of acid iron battery, the cycle life is more than 2000 times. Under the same conditions, the acid iron battery can be used for 7 to 8 years. Safe to use. The acid iron battery has undergone strict safety detection, and it will not explode even in a traffic accident. 2. Fast charging. Using a dedicated charger, the battery can be charged at 1.5C for 40 minutes, and the acid iron battery can withstand high temperatures, and the hot air value of the acid iron battery can reach 350 to 500 degrees Celsius. 3. The capacity of the acid iron battery is large. The acid iron battery has no memory effect. The acid iron battery is environmentally friendly, non-toxic, non-polluting, has a wide range of raw materials, and the price is cheap. Acid iron battery: one of the most potential battery cathode materials at present, with relatively high theoretical capacity, low price, good thermal stability, no pollution, and excellent charge-discharge cycle performance. The process requirements are extremely strict, generally composed of multiple battery strings, and failures have extremely high requirements for the consistency of a single battery. 18650 lithium battery: 18650 is a standard battery model specified by Sony in order to save costs. Among them, 18 means a diameter of 18mm, 65 means a length of 65mm, and 0 means a cylindrical battery. Common 18650 batteries are divided into ion batteries and acid iron batteries. The voltage of the ion battery is rated voltage of 3.7V, the charge cut-off voltage is 4.2V, the rated voltage of the acid iron battery is 3.2V, the charge cut-off voltage is 3.6V, the capacity is usually 1200mAh-3350mAh, and the common capacity is 2200mAh-2600mAh. Advantages of 18650 lithium battery: 1. Large capacity, the capacity of 18650 lithium battery is generally between 1200mAh~3600mAh, and the general battery capacity is only about 800. If 18650 lithium batteries are combined to form a 18650 lithium battery pack, then the 18650 lithium battery pack is It can burst 5000mAh anytime, anywhere. 2. Long life, 18650 lithium battery has a long service life, and the cycle life can reach more than 500 times in normal use, which is more than twice that of general lithium batteries. 3. High safety performance, 18650 lithium battery has high safety performance, non-explosive, non-combustible; non-toxic, non-polluting, and has passed Rohs trademark certification; various safety performances can be achieved in one go, with more than 500 cycles; good high temperature resistance, 65 degrees Discharge efficiency reaches 100% under conditions. In order to guard against the battery short-circuit phenomenon, the positive and negative electrodes of the 18650 lithium battery are separated. Therefore, the possibility of short-circuit phenomenon has been reduced. To the extreme. A battery protection board can be installed to guard against over-discharge and over-charge of the battery, which can extend the service life of the battery. 4. The voltage is high. The voltages of 18650 lithium batteries are generally 3.6V, 3.8V and 4.2V, which are much higher than the 1.2V voltages of NiMH and NiMH batteries. 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: Which is better for power lithium battery materials?