BATTERY CELL ACTIVATION METHOD AND ACTIVATION DEVICE

• Main Authors: LEE, Eun Ju, LEE, Ji Eun, CHOI, Jong Hwan, NAM, Ye Jin
• Format: Patent
• Language: English; French; German
• Published: 26.08.2020
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The present invention relates to a method for activating a battery cell, which activates the battery cell comprising a positive electrode coated with a nickel cobalt manganese (NCM) positive electrode material, into which lithium nickel oxide (LNO) is added or mixed. The method comprises: a step of charging the battery cell; and a step of discharging the battery cell, wherein, in the step of charging the battery cell, the battery cell is charged under a charging condition of C-rate of 0.1 C to 0.5 C in a state of being heated at a temperature of 45°C to 60°C.When the activation process is performed according to the present invention having the above-described configuration, the pressing/heating conditions for suppressing generation of a gas may be provided to prevent swelling, battery deformation, and performance deterioration due to the generation of the gas from occurring.