Battery Cell Pass Prediction from Early Charge-Discharge Cycles

The patent applies preliminary action by performing only a small number of initial charge-discharge cycles (e.g., 5 cycles) to obtain preliminary capacity data, rather than completing all 300 cycles. This preliminary testing allows the system to predict whether the battery cell will pass the full 300-cycle verification, significantly reducing the actual testing time required while maintaining verification reliability.

The patent implements partial action by conducting only a fraction of the required 300 cycles (e.g., 5 cycles) to make a pass/fail determination. The system calculates capacity change rates from this partial data and uses predictive algorithms to determine whether the battery cell would pass the complete 300-cycle test, thereby performing less than the full required action while achieving the same verification goal.

The patent applies feedback by continuously monitoring the capacity change rate during the preliminary charge-discharge cycles and using this feedback to predict the final verification result. The system calculates the capacity change rate from the limited preliminary data and uses this feedback information to determine whether the battery cell will pass the full 300-cycle verification, maintaining measurement precision despite reduced cycling.

The patent implements parameter changes by shifting from measuring absolute capacity values after 300 cycles to measuring and analyzing the capacity change rate during preliminary cycles. This parameter transformation allows the system to make accurate predictions about long-term battery performance based on short-term observations, thereby improving verification speed without sacrificing accuracy.