What codes are on the lithium battery cell?

Generally, it will be in the jetty of the battery, such as ICR, IMR, NCR, IFR, LTO, etc. So what are the meanings of these coding? ICR: The cathode material uses lithium cobalt oxide. IMR: Lithium manganate is used as the cathode material. NCR: The cathode material uses lithium nickel cobalt manganese oxide (commonly known as ternary). IFR: Lithium iron phosphate is used as the cathode material. LTO: Lithium titanate is used as the cathode material. Based on these, we can know what are the cathode materials of lithium batteries, and beware of being fooled by merchants and selling dog meat. 18650 material identification 2: Specification type number The specification type here generally refers to the size of lithium batteries, such as: 18650 (18/65), 18490 (18/49), 21700 (21/70), 26650 (26/65), 32650 (32/65) and so on. The first two digits represent the battery diameter, the last two digits represent the length (some people like to call it height), and 0 represents a cylinder. For example, 18650 refers to a cylindrical battery with a diameter of 18MM and a length of 65MM. The power type will also add the maximum discharge power after the model code, such as 18650/3C, 18650/5C, etc., which means that the maximum discharge current can reach the rate of its own capacity. 3C refers to 3 times, such as 3C rate of 1500mAH. The discharge current can reach 4.5A. 3: Capacity and voltage coding will mark the capacity and power on the battery, such as: 1800mAh, 2000mAh, 2200mAh, 2400mAh, 2500mAh, 2600mAh, etc. common to 18650 batteries, these are the battery capacity, and some manufacturers will also spray on the battery The upper power corresponds to the capacity. For example, the 1800mAh power of a 3.7V 18650 battery is 6.6wh. Some unscrupulous merchants on Taobao make use of customers who do not know the battery and deliberately sell the power as capacity, such as the 18650 battery of 4000mwh, the 18650 battery of 6000mwh, or even the 18650 battery of 9000mwh. In fact, to convert, a 3.7V 18650 battery uses mwhu0026pide;3.7Vu003dmAh. The actual capacity of 18650 of 4000mwh is 1081mah. Everyone must keep their eyes open when buying batteries and don't be fooled by unscrupulous merchants. The voltage code refers to the voltage of a single battery. Different materials have different positive electrode voltages, such as lithium manganese oxide (3.6VIMR), lithium cobalt oxide (3.7V/3.8VICR), lithium nickel cobalt manganese oxide (commonly known as ternary, 3.6VNCR), and phosphoric acid. Lithium iron (3.2VIFR), lithium titanate (2.3V/2.4VLTO). Some manufacturers mark the full-charge voltage, and some manufacturers mark the rated voltage. Because of the different manufacturers, the voltage marking method is different. 4: Processing batch code The processing batch code of each processing manufacturer is different. The approximate content is the year and month of processing. Knowing the batch code of the manufacturer can tell when the battery was processed. You will not get old batteries. 5: Processing manufacturer's brand logo Many manufacturers will mark the manufacturer on the battery, with the manufacturer's LOGO and brand words. Each manufacturer's coding is different, so the manufacturer's logo is also different. The above are the common types of inkjet codes for batteries, to remind you of the purchase statement: Some pictures and content of the articles published on this site are from the Internet, if there is any infringement, please contact to delete the previous article: What are the requirements for power lithium battery module planning ?