Patent ID: 11894527
Assignee: JIANGSU CONTEMPORARY AMPEREX TECHNOLOGY LIMITED
Field: Measurement (Instruments)
Classification: CPC H  G | IPC G  H

Claim 3:
4. The method according to claim 1, the method further comprising:
adjusting an output current of the constant current source in the case where the absolute value of the second rate of change is greater than the second threshold value;
acquiring, in the case of reaching a third moment, a third rate of change of the target current over time in a fifth preset duration after the third moment, wherein the third moment is a moment when the timing that starts from a moment when the output current of the constant current source is adjusted reaches a sixth preset duration;
determining, in the case where the absolute value of the third rate of change is less than or equal to the second threshold value, the self-discharge current of the battery cell according to the target current at the third moment or the target current in a seventh preset duration after the third moment; and
returning, in the case where the absolute value of the third rate of change is greater than the second threshold value, to perform the step of adjusting the output current of the constant current source.