Lithium ion battery calibration method, system and device

The invention discloses a lithium ion battery calibration method, which comprises the steps of preparation before calibration and calibration of a lithium ion battery, and the preparation before calibration comprises the following steps: connecting a power supply adapter matched with lithium ion battery calibration equipment to 220V alternating current; connecting the lithium ion battery of the ECMO host to the lithium ion battery calibration device; starting up the lithium ion battery calibration device; the calibration of the lithium ion battery comprises the following steps: starting lithium ion battery detection, and automatically entering a battery charging state when the lithium ion battery is detected to be in a non-full charge state; after determining that the lithium ion battery is fully charged, automatically entering a discharge mode; pressing a discharge control key to jump into a discharge pause state; when the discharge control key is pressed again, the device continues to enter the discharge st