What Is the Marking Method for Rechargeable Batteries Specified by IEC?

According to the IEC61960 standard, the identification of the secondary lithium battery is as follows:

01) The identification composition of battery: 3 letters, followed by 5 numbers (cylindrical) or 6 (square) numbers.

02) The first letter: indicates the negative electrode material of the battery.

• I—represents lithium ion with built-in battery
• L—represents lithium metal electrode or lithium alloy electrode

03) The second letter: indicates the cathode material of the battery.

• C—cobalt-based electrode
• N—nickel-based electrode
• M—manganese-based electrode
• V—vanadium-based electrode

04) The third letter: indicates the shape of the battery.

• R- represents cylindrical battery
• L – represents square battery

05) Numbers: Cylindrical battery: 5 numbers respectively indicate the diameter and height of the battery. The unit of diameter is millimeter and the unit of height is tenth of a millimeter. When any dimension of diameter or height is greater than or equal to 100mm, a diagonal should be added between the two dimensions.

Square battery: 6 numbers indicate the thickness, width and height of the battery, in millimeters. When any of the three dimensions is greater than or equal to 100mm, a slash should be added between the dimensions; if any of the three dimensions is less than 1mm, the letter “t” is added in front of this dimension, and the unit of this dimension is one tenth of a millimeter.