Analysis of the difference between lithium iron phosphate battery and 18650 lithium battery

As the application of lithium batteries becomes more and more widespread, more and more lithium batteries are used in various products. Iron phosphate batteries and 18650 lithium batteries are two common types of batteries. The 18650 type lithium battery is a more commonly used lithium battery in electronic products, and is often used as a battery in the battery of a notebook computer. Lithium iron phosphate batteries are generally used in power lithium-ion batteries. The author of this article will discuss the differences between the two in detail. Lithium iron phosphate battery: refers to a lithium battery that uses lithium iron phosphate as the positive electrode material. The main cathode materials of lithium batteries include lithium cobalt oxide, lithium manganate, lithium nickelate, ternary materials, and lithium iron phosphate. Among them, lithium cobalt oxide is currently the cathode material used in most lithium batteries. Because its performance is particularly suitable for power applications, the word power is added to the name, that is, lithium iron phosphate power lithium-ion battery. Some people call it lithium iron (LiFe) power lithium-ion battery. The advantages of lithium iron phosphate batteries: 1. The life of lithium iron phosphate batteries is long, with a cycle life of more than 2000 times. Under the same conditions, lithium iron phosphate batteries can be used for 7 to 8 years. 2. Safe to use. Lithium iron phosphate batteries have undergone strict safety tests and will not explode even in traffic accidents. 3. Fast charging. Using a dedicated charger, the battery can be fully charged after 40 minutes of charging at 1.5C. 4. The lithium iron phosphate battery is resistant to high temperatures, and the hot air value of the lithium iron phosphate battery can reach 350 to 500 degrees Celsius. 5. The lithium iron phosphate battery has a large capacity. 6. The lithium iron phosphate battery has no memory effect. 7. Lithium iron phosphate battery is environmentally friendly, non-toxic, non-polluting, has a wide range of raw materials, and is cheap. Lithium iron phosphate battery: one of the most potential lithium 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, because the power lithium-ion battery is generally composed of multiple batteries in series, so the consistency of a single battery is extremely high. 18650 lithium battery: 18650 is the originator of lithium batteries-a standard lithium battery model set by SONY in Japan in order to save costs, where 18 means the diameter is 18mm, 65 means the length is 65mm, and 0 means cylindrical battery. Common 18650 batteries are divided into lithium batteries and lithium iron phosphate batteries. The nominal voltage of the lithium battery is 3.7v, the charge cut-off voltage is 4.2v, the nominal voltage of the lithium iron phosphate 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, while the general battery capacity is only about 800. If 18650 lithium batteries are combined to form a 18650 lithium battery pack, the 18650 lithium battery pack is Anything can break through 5000mah. 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 ordinary batteries. 3. High safety performance, high safety performance of 18650 lithium battery, non-explosive, non-combustible; non-toxic, non-polluting, certified by RoHS trademark; all kinds of safety performance are done in one go, the number of cycles is more than 500 times; high temperature resistance performance, 65 degrees condition The discharge efficiency reaches 100%. In order to prevent the battery short-circuit phenomenon, the positive and negative electrodes of the 18650 lithium battery are separated. Therefore, the short-circuit phenomenon may have been reduced to the extreme. A protective board can be installed to prevent overcharge and overdischarge of the battery, which can also extend the service life of the battery. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.