| abstract |
The invention relates to a method for determining the state of health (SOH) of a lithium-ion battery (1), comprising: - a first step (E1) of determining a function (f) of the incremental capacity of the battery, - a second step (E2) of identifying peaks (P1, P2, P3) of the function (f) determined during the first step (E1), - a third step (E3) of determining voltage values (U1, U2, U3) at the terminals of the battery (1) for which the peaks (P1, P2, P3) are obtained, - a fourth step (E4) of determining the amplitudes of the peaks (P1, P2, P3), - a sixth step (E6) of determining the state of health (SOH) of the battery (1) according to a degradation mode of the battery and according to the amplitudes determined during the fourth step (E4). |