What are the models and specifications of lithium-ion battery cells?


What are the models and specifications of batteries? At the end of the day, there are several types that cannot be clearly defined, as each battery manufacturer has their own model specifications, as well as some customized battery specifications. Below is an introduction to the naming of lithium battery models and specifications, as well as the meanings of the letters and numbers on the battery, to provide a better understanding of battery model specifications.


Cylindrical lithium battery model specifications


The model naming of cylindrical lithium batteries consists of three letters and five digits. IEC61960 specifies the following rules for cylindrical and square batteries:


Cylindrical lithium battery, with 3 letters followed by 5 numbers. Three letters, I represents the presence of built-in lithium ions, and L represents lithium metal or lithium alloy electrodes. The second letter represents the positive electrode material, C represents diamond, N represents nickel, M represents manganese, and V represents vanadium. The third letter, R, represents cylindrical shape.


5 digits, the first 2 digits represent diameter and the last 3 digits represent height, all in millimeters.


For example, ICR18650 is a universal cylindrical battery with a diameter of 18mm and a height of 65mm, where 0 represents a circular shape.


3.6V refers to a nominal voltage of 3.6V.


C represents the discharge rate of the battery during discharge, measured in mAh. Simply put, it refers to the size or speed of discharge per unit time. For example, if the battery capacity used is discharged in 1 hour, it is called 1C discharge; After 5 hours of discharge, it is called 0.2C discharge.


Table of cylindrical lithium battery models:

Square lithium battery model specifications


The model naming of square batteries: 6 numbers represent the thickness, width, and height of the battery, in millimeters. When any of the three dimensions is greater than or equal to 100mm, diagonal lines should be added between the dimensions; If any of the three dimensions is less than 1mm, add the letter't 'before this dimension, which is measured in one tenth of a millimeter.


ICP103450 represents a square secondary lithium-ion battery, with a positive electrode material of diamond, a thickness of approximately 10mm, a width of approximately 34mm, and a height of approximately 50mm.


ICPO8/34/150 represents a square secondary lithium-ion battery, with a positive electrode material of diamond, a thickness of approximately 8mm, a width of approximately 34mm, and a height of approximately 150mm.


ICPt73448 represents a square secondary lithium-ion battery, with a positive electrode material of diamond, a thickness of approximately 0.7mm, a width of approximately 34mm, and a height of approximately 48mm.


Square lithium battery model table: