Abstract: Formation process for a potassium-ion hybrid supercapacitor, the process comprising: a) supplying the potassium-ion hybrid supercapacitor comprising: a negative electrode comprising graphite, a positive electrode comprising activated carbon, an electrolyte comprising a potassium salt, b) charging the supercapacitor at constant current in a protocol of between Cx/50 and Cx/2, to a charge cutoff voltage of between 3.0 V and 3.3 V, c) holding the supercapacitor at the charge cutoff voltage until the leakage current is between Cx/2000 and Cx/500, d) discharging the supercapacitor at constant current in a protocol of between Cx/50 and Cx, to a discharge cutoff voltage of between 0 V and 2 V, where the process further comprises degassing the supercapacitor after one of steps b) to d).

Abstract: A negative electrode for a lithium electrochemical generator, wherein it comprises, as active material, a lithium and calcium alloy, wherein the calcium is present in the alloy to the extent of 2% to 34% of atomic.

Abstract: The main purpose of the invention is an assembly and electrical connection part (2) of at least two electrical energy storage cells (1), that will be included in an electric assembly module (20) of an energy storage system, characterised in that the part (2) comprises first (3a) and second (3b) means of connecting the part (2) to said at least two electrical energy storage cells (1), the first (3a) and second (3b) connection means being configured to enable the passage of connection pins (4) to assemble and electrically connect the part (2) to each of said at least two electrical energy storage cells (1).

Abstract: A negative electrode for a lithium electrochemical generator, wherein it comprises, as active material, a lithium and calcium alloy, wherein the calcium is present in the alloy to the extent of 2% to 34% of atomic.

Abstract: The invention primarily relates to a cell (1) for storing power, which is to be integrated in an electrical module for assembling a power storage system, having a first surface (1a; 1c) and a second surface (1b; 1d), characterised in that the cell (1) comprises at least one male element (5; 5a, 5b, 5c) on one of the first (1a; 1c) and second (1b; 1d) surfaces thereof, and at least one female element (6; 6a, 6b, 6c) on the other of the first (1a; 1c) and second (1b; 1d) surfaces thereof, which elements are shaped such as to be fitted into one another such that the cell (1) is configured such as to be assembled to another cell (1) of the same type, in that at least one male element (5; 5a, 5b, 5c) comprises at least one electrical connection interface having positive polarity (8; 8a, 8b, 8c) and in that at least one female element (6; 6a, 6b, 6c) comprises at least one electrical connection interface having negative polarity (9; 9a, 9b), or conversely such that the cell (1) is configured such as to be electrica

Abstract: A process for manufacturing an elementary gas electrode electrochemical cell of metal-gas type, configured to be integrated into an electrochemical assembly module of a system for storing energy and including: an electrochemical core including at least one negative electrode and at least one positive electrode, at least one negative electrode as a gas electrode and at least one positive electrode as a metal electrode or vice versa, the process including: producing the electrochemical core of the cell by winding, folding, and/or stacking a plurality of layers including at least one negative-electrode layer, one positive-electrode layer, and one electrolyte layer, and forming gas flow spaces channeling the gas to the one or more gas electrode layers.

Abstract: A process is provided for manufacturing an alkaline-based hybrid supercapacitor type battery, to an alkaline-based hybrid supercapacitor type battery, and to a process for recycling a negative electrode of an alkali-ion battery. The process for manufacturing the alkaline-based hybrid supercapacitor type battery comprises forming a negative electrode A from an electrode material B originating from a used alkali-ion battery having lost at least some of its initial capacity. Embodiments of the present disclosure are in particular applicable to the field of batteries.

Abstract: An electrochemical assembly module of a system for storing energy, including an assembly of a plurality of elementary gas-electrode electrochemical cells, the assembly including a plurality of lugs respectively associated with the plurality of elementary electrochemical cells, the lugs being connected together by a connecting holder and receiving terminals of the elementary electrochemical cells so that the terminals are all electrically connected to one another by the connecting holder, and a plurality of elements forming connecting clips each receiving at least two terminals of at least two elementary electrochemical cells so that the at least two terminals are electrically connected to each other by the element forming a connecting clip that is associated therewith.

Abstract: The invention relates to a device of the hybrid supercapacitor type comprising at least one cell comprising: a porous positive electrode comprising activated carbon; a negative electrode comprising a carbonaceous material capable of inserting an alkaline element other than lithium, this carbonaceous material being different from the activated carbon used at the positive electrode; and a non-aqueous electrolyte comprising a salt selected from salts of an alkaline metal other than lithium.

Abstract: An electrochemical assembly module of a system for storing energy, including an assembly of a plurality of elementary gas-electrode electrochemical cells, the assembly including a plurality of lugs respectively associated with the plurality of elementary electrochemical cells, the lugs being connected together by a connecting holder and receiving terminals of the elementary electrochemical cells so that the terminals are all electrically connected to one another by the connecting holder, and a plurality of elements forming connecting clips each receiving at least two terminals of at least two elementary electrochemical cells so that the at least two terminals are electrically connected to each other by the element forming a connecting clip that is associated therewith.

Abstract: The invention relates to an electrical energy storage assembly comprising an envelope and a capacitive element (30) contained in the envelope, said envelope comprising: at least one side wall (22); and two bottom walls (41) each located at an end of the side wall. Said storage assembly comprises at least one electroconductive intermediate connection part (50) to be arranged between the capacitive element and a bottom wall (41), in addition to a covering plate (51) for covering the end of the capacitive element (20), said covering plate (51) including at least one vent (53) for the passage of a fluid. The covering plate (51) is fixed to the capacitive element in such a way as to be in electrical contact therewith, and the intermediate connection part (50) is also fixed to the envelope in certain areas enabling a deformation of the bottom wall in relation to the intermediate connection part.

Abstract: The self-powered device includes a control circuit supplied by a power supply source, and self-destruction unit configured to destroy the device by impairing the power supply source. The invention also relates to the corresponding self-destruction method.

Abstract: An electrochemical cell including a shell delimiting a space filled with an electrolytic solution, and a set of at least two different electrochemical systems selected from among a supercapacitor, a hybrid supercapacitor, and an accumulator, the set being arranged in the space filled with the electrolytic solution. A system for storing and restoring electric energy, or a vehicle, or a hybrid vehicle car can include such an electrochemical cell and can include such a system for storing and restoring electric energy.

Abstract: The main purpose of the invention is an assembly and electrical connection part (2) of at least two electrical energy storage cells (1), that will be included in an electric assembly module (20) of an energy storage system, characterised in that the part (2) comprises first (3a) and second (3b) means of connecting the part (2) to said at least two electrical energy storage cells (1), the first (3a) and second (3b) connection means being configured to enable the passage of connection pins (4) to assemble and electrically connect the part (2) to each of said at least two electrical energy storage cells (1).

Abstract: The invention primarily relates to a cell (1) for storing power, which is to be integrated in an electrical module for assembling a power storage system, having a first surface (1a; 1c) and a second surface (1b; 1d), characterised in that the cell (1) comprises at least one male element (5; 5a, 5b, 5c) on one of the first (1a; 1c) and second (1b; 1d) surfaces thereof, and at least one female element (6; 6a, 6b, 6c) on the other of the first (1a; 1c) and second (1b; 1d) surfaces thereof, which elements are shaped such as to be fitted into one another such that the cell (1) is configured such as to be assembled to another cell (1) of the same type, in that at least one male element (5; 5a, 5b, 5c) comprises at least one electrical connection interface having positive polarity (8; 8a, 8b, 8c) and in that at least one female element (6; 6a, 6b, 6c) comprises at least one electrical connection interface having negative polarity (9; 9a, 9b), or conversely such that the cell (1) is configured such as to be electrica

Abstract: The invention relates to a separator film for a device used for storing electrical energy, the film being porous and oriented, and being obtained by stretching in a longitudinal direction and in a direction transverse to the longitudinal direction, the film containing a mixture comprising a polypropylene homopolymer, at least 10% of a copolymer obtained from monomers comprising at least propylene and ethylene, and at least one beta-nucleating agent. According to the invention, the ethylene content of the copolymer is ?1% but <10% and a propylene content of the copolymer is ?90% for a film thickness of ?8 microns and ?30 microns, corresponding to a specified space factor according to the IEC-60674-3-1 standard greater than or equal to 145% and a density of the biaxially stretched film greater than or equal to 0.18 g/cm3 but less than or equal to 0.41 g/cm3.

Abstract: A process is provided for manufacturing an alkaline-based hybrid supercapacitor type battery, to an alkaline-based hybrid supercapacitor type battery, and to a process for recycling a negative electrode of an alkali-ion battery. The process for manufacturing the alkaline-based hybrid supercapacitor type battery comprises forming a negative electrode A from an electrode material B originating from a used alkali-ion battery having lost at least some of its initial capacity. Embodiments of the present disclosure are in particular applicable to the field of batteries.

Abstract: The invention relates to a device of the hybrid supercapacitor type comprising at least one cell comprising: a porous positive electrode comprising activated carbon; a negative electrode comprising a carbonaceous material capable of inserting an alkaline element other than lithium, this carbonaceous material being different from the activated carbon used at the positive electrode; and a non-aqueous electrolyte comprising a salt selected from salts of an alkaline metal other than lithium.

Abstract: A method is provided for developing a hybrid supercapacitor. The method includes the use of a lithium salt of the electrolyte to carry out the intercalation/insertion of the lithium at the negative electrode but by greatly increasing the concentration of lithium ions of the electrolyte order to subsequently accept a depletion. As the depletion in ions has an impact on the conductivity, the amount and the concentration of the electrolyte are chosen in order to make it possible to accept this depletion white retaining a conductivity of the electrolyte compatible with a powerful system for storage of energy. A portion of the Li+ ions present in the electrolyte is used to form the passivation layer and the compound for intercalation/insertion Li˜0.5C6 at the negative electrode.

Abstract: The invention relates to an electrical energy storage assembly comprising an envelope and a capacitive element (30) contained in the envelope, said envelope comprising: at least one side wall (22); and two bottom walls (41) each located at an end of the side wall. Said storage assembly comprises at least one electroconductive intermediate connection part (50) to be arranged between the capacitive element and a bottom wall (41), in addition to a covering plate (51) for covering the end of the capacitive element (20), said covering plate (51) including at least one vent (53) for the passage of a fluid. The covering plate (51) is fixed to the capacitive element in such a way as to be in electrical contact therewith, and the intermediate connection part (50) is also fixed to the envelope in certain areas enabling a deformation of the bottom wall in relation to the intermediate connection part.