Patent ID: 7663344
Filing Date: 2010-02-16
Classification: G01R,H01M,H02J,Y02E

Abstract:
1. Method for managing a pool of rechargeable batteries comprising determination of priority criteria, charging of a battery selected according to the priority criteria, and measurement of electrical parameters representative of the selected battery, said method comprising analysis of a state of health of the selected battery according to said electrical parameters measured immediately after the selected battery has been fully charged, updating of the priority criteria according to the state of health of the selected battery, and selection of the next battery according to the updated priority criteria; wherein the measurement of the electrical parameters of the selected battery comprises measurement of the voltage at the terminals of said battery during a partial discharge at constant current; wherein the measurement of the electrical parameters comprises measurement of parameters representative of a coup de fouet effect during the partial discharge; and wherein the measurement of parameters representative of a coup de fouet effect comprises determination of the difference between the values of a peak voltage and of a plateau voltage reached by the voltage of the selected battery respectively during first and second phases of the partial discharge.