METHOD AND ARRANGEMENT FOR DETERMINING OPERATING PARAMETERS OF AN ELECTROCHEMICAL STORAGE BATTERY

摘要

The invention relates to a method for determining operating parameters of an electrochemical storage battery, taking into account an electrolyte layering. Said method comprises the following steps: a) a first functional correlation between the open-circuit voltage U_o and the charging state SOC is determined as a value for the removable charge in relation to the nominal capacity Q_N of the storage battery, in the presence of an electrolyte layering in a discharge phase with the charge conversion since a previous idle phase or pre-charge; b) a second functional correlation between the open-circuit voltage U_o and the charging state SOC is determined as a value for the removable charge in relation to the nominal capacity Q_N of the storage battery, in the presence of an electrolyte layering in a discharge phase with an accumulated charge conversion; and c) operating parameters are determined from the point of intersection of the first and second functional correlations and/or the incline of straight lines for describing the first and/or second functional correlations.