Abstract: Method for extinguishing an electrochemical generator, particularly in the event of a thermal runaway, the electrochemical generator comprising a first electrode and a second electrode, the first electrode being connected to a first terminal and the second electrode being connected to a second terminal or the ground of the electrochemical generator, wherein the process comprises a step in which the electrochemical generator is covered by an ionic liquid solution, the ionic liquid solution comprising an ionic liquid and an active species with extinguishing and/or flame retardant properties. The ionic liquid solution continuously covering the electrochemical generator from the first terminal to the second terminal or from the first terminal to the ground, so as to cool and/or discharge the electrochemical generator.

Abstract: The invention relates to a method for regenerating the capacity of an electrochemical lithium battery, including the following steps: a) evaluating the quantity of lithium ions; b) when the evaluated lithium ion quantity is less than or equal to a threshold value, applying an electric current between the cathode or the anode and the container such as to cause the delithiation of the casing, the casing is also arranged to house an element providing both electric insulation and ionic conduction between the anode and cathode electrodes of the electrochemical cell and the casing, said casing including at least one lithium ion storage zone.

Abstract: The present invention relates to a flexible structure (6) comprising a strain gauge (7) that is elongate along a longitudinal axis X1, and intended to measure the deformation of the flexible structure in a direction X parallel to the axis X1, the strain-gauge support (71) being bonded to the flexible structure only via the lateral ends (75, 76) thereof. One particularly targeted application is the bonding of strain tool gauges to the packaging of a flexible lithium battery, such as an Li-ion battery.

Abstract: Method for monitoring an electrochemical cell or a battery (1), in particular method for monitoring the first charging of an electrochemical cell or of a battery (1) of Li-ion type, comprising a step of acquiring data relating to acoustic emissions produced in the electrochemical cell or in the battery and, by using the data acquired, a step of detecting: the formation of a passivation film on an electrode of the electrochemical cell or of the battery; and/or the first storage of lithium in an electrode of the electrochemical cell or of the battery.

Abstract: The present invention relates to a flexible structure (6) comprising a strain gauge (7) that is elongate along a longitudinal axis X1, and intended to measure the deformation of the flexible structure in a direction X parallel to the axis X1, the strain-gauge support (71) being bonded to the flexible structure only via the lateral ends (75, 76) thereof. One particularly targeted application is the bonding of strain tool gauges to the packaging of a flexible lithium battery, such as an Li-ion battery.

Abstract: The invention relates to a method for regenerating the capacity of an electrochemical lithium battery, including the following steps: a) evaluating the quantity of lithium ions; b) when the evaluated lithium ion quantity is less than or equal to a threshold value, applying an electric current between the cathode or the anode and the container such as to cause the delithiation of the casing, the casing is also arranged to house an element providing both electric insulation and ionic conduction between the anode and cathode electrodes of the electrochemical cell and the casing, said casing including at least one lithium ion storage zone.

Abstract: Method for managing a battery comprising several accumulators that can be linked in series or in parallel, comprising a charging or discharging phase during which the accumulators are disposed in series, characterized in that it thereafter comprises a balancing phase comprising the placing of the accumulators in parallel, during which an electrical quantity Gmin representing the balancing of the accumulator that has attained the maximum voltage during the charging phase or minimum voltage during the discharging phase is measured or estimated, and during which an electrical quantity Gi representing the balancing of another accumulator i of the battery is also measured or estimated, and in that the state of health SOHi of this other accumulator i is computed on the basis of the two electrical quantities Gmin and Gi and on the basis of the knowledge of the performance of the accumulator i at the start of life.

Abstract: The method for charging an electrochemical nickel-based battery having a predetermined nominal capacity, including at least one measurement of the voltage of the battery and one measurement of the temperature representative of the battery. The battery is connected to an intermittent source of energy. The charging of the battery is stopped when the voltage measured at the terminals of the battery reaches a voltage threshold, depending on the measured temperature and representative of a capacity charged in the battery corresponding to a charging efficiency equal to or higher than 90% of the maximum charging efficiency.

Abstract: Method for monitoring an electrochemical cell or a battery (1), in particular method for monitoring the first charging of an electrochemical cell or of a battery (1) of Li-ion type, comprising a step of acquiring data relating to acoustic emissions produced in the electrochemical cell or in the battery and, by using the data acquired, a step of detecting: the formation of a passivation film on an electrode of the electrochemical cell or of the battery; and/or the first storage of lithium in an electrode of the electrochemical cell or of the battery.

Abstract: Method for managing a battery comprising several accumulators that can be linked in series or in parallel, comprising a charging or discharging phase during which the accumulators are disposed in series, characterized in that it thereafter comprises a balancing phase comprising the placing of the accumulators in parallel, during which an electrical quantity Gmin representing the balancing of the accumulator that has attained the maximum voltage during the charging phase or minimum voltage during the discharging phase is measured or estimated, and during which an electrical quantity Gi representing the balancing of another accumulator i of the battery is also measured or estimated, and in that the state of health SOHi of this other accumulator i is computed on the basis of the two electrical quantities Gmin and Gi and on the basis of the knowledge of the performance of the accumulator i at the start of life.

Abstract: Method for charging an electric battery with a given charge capacity, the electric battery feeding a charge and the electric battery being charged by an electrical energy source, wherein the method defining a first level of charge reference value lower than the charge capacity of the battery and a step of charging the electric battery until the first level of charge reference value is reached.

Abstract: The method for charging an electrochemical nickel-based battery having a predetermined nominal capacity, including at least one measurement of the voltage of the battery and one measurement of the temperature representative of the battery. The battery is connected to an intermittent source of energy. The charging of the battery is stopped when the voltage measured at the terminals of the battery reaches a voltage threshold, depending on the measured temperature and representative of a capacity charged in the battery corresponding to a charging efficiency equal to or higher than 90% of the maximum charging efficiency.