Abstract: Provided is an analogue system for balancing a rechargeable electrical energy storage assembly including a plurality of capacitive-effect electrical energy storage devices connected to one another in series, the system including a balancing device for each storage device, including: a bypass circuit for the storage device, and a first comparator, arranged to control the bypass circuit according to the voltage across the terminals of the storage device and according to a balancing voltage; a second comparator, arranged to control an open state of the bypass circuit of each storage device according to a switch-off voltage, and according to the voltage across the terminals of each storage device.

Abstract: The present invention relates in particular to a very high capacitance film capacitor (1) that comprises a dielectric layer (100) consisting of at least one dielectric film (100a, . . . , 100i), each dielectric film (100a, . . . , 100i) of this dielectric layer (100) having the following parameters: —a relative dielectric permittivity [?fi] such that ?fi?10, —a thickness [efi] such that 0.05 ?m?efi?50 ?m, —a dielectric strength [Efi] such that Efi?50 V/?m, parameters in which “f” signifies “film” and i?1, “i” designating the “ith” dielectric film (100i) of said dielectric layer (100), this dielectric layer (100) separating a first electronic charge carrier structure (200) from a second electronic charge carrier structure (300), these two structures having an opposite surface (S) separated by the dielectric layer (100).

Abstract: Provided is an analogue system for balancing a rechargeable electrical energy storage assembly including a plurality of capacitive-effect electrical energy storage devices connected to one another in series, the system including a balancing device for each storage device, including: a bypass circuit for the storage device, and a first comparator, arranged to control the bypass circuit according to the voltage across the terminals of the storage device and according to a balancing voltage; a second comparator, arranged to control an open state of the bypass circuit of each storage device according to a switch-off voltage, and according to the voltage across the terminals of each storage device.

Abstract: An analogue system for balancing an electrical energy storage assembly having a plurality of capacitive effect electrical energy storage devices connected to one another in series, the system including, for each storage device, a balancing device including: a bypass circuit for the storage device, able to be controlled between a closed state and an open state; a first voltage comparator for controlling an open or closed state of the bypass circuit depending on a balancing voltage; and a second voltage comparator for controlling an open or closed state of the bypass circuit depending on a switch-off voltage.

Abstract: The present disclosure is within the field of capacitive electrical energy storage, to supply electric or hybrid vehicles. It relates to a reconfigurable electrical energy storage device, wherein the internal connections between the different energy storage modules is modifiable. The device includes: M×N storage modules, where M and N are strictly positive natural numbers, each storage module storing electrical energy by capacitive effect between a negative terminal and a positive terminal; contactors arranged to order to make it possible to connect by their terminals M1×Ni storage modules, in different combinations, each combination denoted by an index i including Mi branches connected in parallel, each branch including Ni storage modules connected in series, where Mi×Ni?M×N; and positive and negative electrical connection terminals to which are capable of being connected, in each combination, the ends of the branches connected in parallel.

Abstract: A device is provided for characterising at least one element for storing energy via a capacitive effect. The device includes a measuring component for measuring the voltage across the terminals of the storing element and another measuring component for measuring the current flowing through the storing element, having response times of the same order of magnitude. The device includes a controller for controlling the measuring component and a calculator for calculating a statistical quantity from the measurements taken. The controller is configured to control the measuring component so that the voltage-measurement period and the current-measurement period overlap temporally by at least 70%, especially 90%, of a total period including the voltage and current-measurement periods. A method is also provided for characterising an element for storing energy via a capacitive effect and to an assembly including at least one element for storing energy via a capacitive effect and a characterising device.

Abstract: A device is provided for characterising at least one element for storing energy via a capacitive effect. The device includes a measuring component for measuring the voltage across the terminals of the storing element and another measuring component for measuring the current flowing through the storing element, having response times of the same order of magnitude. The device includes a controller for controlling the measuring component and a calculator for calculating a statistical quantity from the measurements taken. The controller is configured to control the measuring component so that the voltage-measurement period and the current-measurement period overlap temporally by at least 70%, especially 90%, of a total period including the voltage and current-measurement periods. A method is also provided for characterising an element for storing energy via a capacitive effect and to an assembly including at least one element for storing energy via a capacitive effect and a characterising device.

Abstract: The invention relates to a module comprising at least two electrical energy storage assemblies (20), each storage assembly (20) comprising a first face topped by a cover (30) electrically connected to said energy storage assembly (20) and a second face opposite the first face, each cover being in contact with a respective end of a strip (40) in order to electrically connect the two storage assemblies (20), in which the strip (40) and the faces of the covers (30) in contact with the strip (40) are flat, the strip (40) being welded to the faces of the covers (30) along weld leads (50, 50?).

Abstract: Module including a casing (10) in which a plurality of electric energy storage assemblies (20) are arranged so that their longitudinal axis are parallel to one another and perpendicular to an upper wall and a lower wall of the casing. Each electric storage assembly has a first face in thermal contact with and electrically insulated from the lower wall of the casing, and a second face opposite the first face. The second face is capped with a cover electrically connected to the energy storage assembly (20). The upper wall of the casing includes a holder for holding the storage assemblies against the lower wall of the casing which also allows swelling of the covers capping the second faces.

Abstract: The invention relates to a module including a housing (10) in which are provided at least two electric energy storage assemblies (20) connected by connection means (30) and at least one management electronic board (40) for managing the charging and discharging of the energy storage means (20), wherein the different walls of the housing (10) are in thermal contact while being electrically insulated, respectively, for at least one wall relative to the electric energy storage assemblies (20) and for at least another wall with the management electronic board (40), so as to promote the cooling of said module.

Abstract: The invention relates to a supercapacitor with a double electrochemical layer that comprises at least two complexes (2, 3) and at least one spacer (4) between the two complexes (2, 3), the complexes (2, 3) and the spacer (4) being spirally wound together in order to form a coiled member (10), characterized in that it further comprises at least another complex (1) and at least another spacer (4), the other complex (1) and the other spacer (4) being spirally wound together around the coiled member (10) in order to form at least one subsequent coiled member (20), the consecutive coiled members (10, 20) being separated by an electronic insulation space.

Abstract: The invention relates to a supercapacitor that comprises at least two juxtaposed complexes (1, 2) spaced by a distance d, and at least one common complex (3) located opposite the two juxtaposed complexes (1, 2) and spaced therefrom by at least one spacer (4), the spacer (4) and the complexes (1, 2, 3) being spirally wound together in order to form a coiled element.

Abstract: The present invention relates to a device to prevent overpressure in a supercapacitor. In a supercapacitor comprising a closed chamber fitted with means for exchanging a gas with the external surroundings and in which there are positioned two electrodes with a high specific surface area, separated by a separator, the separator and the electrodes being impregnated with an electrolyte, the means for exchanging a gas comprise a metallic membrane that is permeable to hydrogen and its isotopes and impermeable to gaseous species which have an effective cross section of 0.3 nm or higher, at a temperature of between ?50° C. and 100° C.

Abstract: The invention concerns a device for storing electric power and method for assembling the device. The device includes an electrode layer and a collector layer associated with the electrode layer, a barrier layer made of metal nitride, the barrier layer being interposed between the electrode layer and the collector layer. The barrier layer is adapted to prevent diffusion of ions contained in an electrolyte up to the collector layer.

Abstract: The invention relates to a supercapacitor with a double electrochemical layer that comprises at least two complexes (2, 3) and at least one spacer (4) between the two complexes (2, 3), the complexes (2, 3) and the spacer (4) being spirally wound together in order to form a coiled member (10), characterised in that it further comprises at least another complex (1) and at least another spacer (4), the other complex (1) and the other spacer (4) being spirally wound together around the coiled member (10) in order to form at least one subsequent coiled member (20), the consecutive coiled members (10, 20) being separated by an electronic insulation space.

Abstract: The present invention relates to a device to prevent overpressure in a supercapacitor. In a supercapacitor comprising a closed chamber fitted with means for exchanging a gas with the external surroundings and in which there are positioned two electrodes with a high specific surface area, separated by a separator, the separator and the electrodes being impregnated with an electrolyte, the means for exchanging a gas comprise a metallic membrane that is permeable to hydrogen and its isotopes and impermeable to gaseous species which have an effective cross section of 0.3 nm or higher, at a temperature of between ?50° C. and 100° C.

Abstract: The invention relates to a supercapacitor that comprises at least two juxtaposed complexes (1, 2) spaced by a distance d, and at least one common complex (3) located opposite the two juxtaposed complexes (1, 2) and spaced therefrom by at least one spacer (4), the spacer (4) and the complexes (1, 2, 3) being spirally wound together in order to form a coiled element.

Abstract: The invention relates to a module including a housing (10) in which is provided at least one electric energy storage assembly (20) that comprises a first face in thermal contact with and electrically insulated from at least the lower wall of the housing, and a second face opposite the first, the second face being covered by a lid electrically connected to said energy storage assembly wherein the module includes a means for maintaining the storage assembly in association with the wall of the housing on the one hand, and allowing a swell of the lid covering the second face on the other hand.

Abstract: The invention relates to a module comprising at least two electrical energy storage assemblies (20), each storage assembly (20) comprising a first face topped by a cover (30) electrically connected to said energy storage assembly (20) and a second face opposite the first face, each cover being in contact with a respective end of a strip (40) in order to electrically connect the two storage assemblies (20), in which the strip (40) and the faces of the covers (30) in contact with the strip (40) are flat, the strip (40) being welded to the faces of the covers (30) along weld leads (50, 50?).

Abstract: The invention concerns a device for storing electric power comprising an electrode layer (3, 11) and a collector layer (1) associated with the electrode layer, characterized in that it also comprises a barrier layer (2, 12) made of metal nitride, the barrier layer (2, 12) being interposed between the electrode layer (3, 11) and the collector layer (1), the harrier layer (2, 12) being adapted to prevent diffusion of ions contained in an electrolyte (14, 16) up to the collector layer (1).