Abstract: The invention relates to a method for assembling a battery (100), characterised in that it comprises: the provision of an end plate (1) comprising at least one through cell (10) for an accumulator (2) and at least one adhesive injection orifice (11) distant from the cell (10), in fluidic communication via a supply channel with a recess (12) of the inner wall (10I) of the cell, the placing of the accumulator (2) in said cell (10), the injection of adhesive (3) through the injection orifice (11), the adhesive flowing in the channel up to the recess (12), the accumulator (2) being bonded to the end plate (1) by the adhesive (3) contained in said recess (12).

Abstract: A busbar for a battery pack, intended to electrically connect at least one electrochemical accumulator battery of the pack, preferably to electrically connect several electrochemical accumulator batteries of the pack to one another, including an electrically conductive and sealtight envelope itself intended to channel the current of the accumulator batteries and designed to contain a heat transfer liquid whose vaporization temperature is chosen so as to be between a value close to 90% of the self-heating temperature and a value close to 110% of the thermal runaway temperature of the accumulator batteries of the pack, the sealtight envelope being designed to guarantee an injection of heat transfer liquid as close as possible to each accumulator battery to which it is intended to be connected, preferably close to at least one of its output terminals.

Abstract: The invention relates to a method for laser welding a first component to a second component, comprising: placing the first component on the second component; applying a welding mask comprising a flat contact surface to the first component to press the first component onto the second component, the welding mask comprising a through-passage for a laser beam, defining a welding area on the first component, the contact surface at least partially surrounding said passage; emitting a laser beam by a head into the passage of the welding mask, to form a weld bead joining the first component to the second component in the welding area; wherein the welding mask is rigid and rigidly joined to the laser head and the focal length of the laser is constant, the constant focal length being ensured by the rigid mask.

Abstract: A busbar for a battery pack, intended to electrically connect at least one electrochemical accumulator battery of the pack, preferably to electrically connect several electrochemical accumulator batteries of the pack to one another, including an electrically conductive and sealtight envelope itself intended to channel the current of the accumulator batteries and designed to contain a heat transfer liquid whose vaporization temperature is chosen so as to be between a value close to 90% of the self-heating temperature and a value close to 110% of the thermal runaway temperature of the accumulator batteries of the pack, the sealtight envelope being designed to guarantee an injection of heat transfer liquid as close as possible to each accumulator battery to which it is intended to be connected, preferably close to at least one of its output terminals.

Abstract: The invention relates to a method for producing an electromechanical bundle for a metal-ion battery, for electrical connection thereof to the output terminals of the battery, characterised by coiling or folding the sides of at least one of the two electrodes on itself, then compacting by packing in order to further increase the density of the coiled sides in order to weld the electrode to a current collector.

Abstract: An electrochemical accumulator including: at least one electrochemical cell made of at least one cathode and one anode and, on either side of an electrolyte, two current collectors, one of which is connected to the anode and the other to the cathode; a housing made of aluminium alloy arranged such as to sealingly contain the electrochemical cell(s); two current-output terminals, one of which is welded to a wall of the housing, the output terminal welded to the housing being made of an aluminium alloy having a magnesium content (Mg) that is no lower than 0.01% and no higher than 4%, and a copper content that is no lower than 0.05% and no higher than 0.3%, the aluminium alloy of the output terminal welded to the housing having a metallurgical state which grants same a breaking strength (Rm) of no less than 60 MPa.

Abstract: The invention relates to a method for producing an electromechanical bundle for a metal-ion battery, for electrical connection thereof to the output terminals of the battery, characterised by coiling or folding the sides of at least one of the two electrodes on itself, then compacting by packing in order to further increase the density of the coiled sides in order to weld the electrode to a current collector.

Abstract: One subject of the invention is a process for producing an electrochemical bundle of a metal-ion accumulator, with a view to its electrical connection to the output terminals of the accumulator, which is characterized by the addition of a strip of metal foam to the margins with a view to welding with a current collector.

Abstract: A method for producing an electrochemical bundle of a lithium battery, such as an Li-ion battery, with a view to electrically connecting same to the output terminals of the battery, wherein it includes the combination of two steps of folding an electrochemical bundle of a lithium battery which are carried out separately, i.e. a radial folding with plastic deformation and an axial compacting, which make it possible to obtain two separate areas on at least one, and preferably both, of the lateral ends of the bundle. The invention also concerns a method for producing an electrical connection part between the electrochemical bundle and one of the output terminals of the battery, and an associated current collector.

Abstract: An electrochemical accumulator including: at least one electrochemical cell made of at least one cathode and one anode and, on either side of an electrolyte, two current collectors, one of which is connected to the anode and the other to the cathode; a housing made of aluminium alloy arranged such as to sealingly contain the electrochemical cell(s); two current-output terminals, one of which is welded to a wall of the housing, the output terminal welded to the housing being made of an aluminium alloy having a magnesium content (Mg) that is no lower than 0.01% and no higher than 4%, and a copper content that is no lower than 0.05% and no higher than 0.3%, the aluminium alloy of the output terminal welded to the housing having a metallurgical state which grants same a breaking strength (Rm) of no less than 60 MPa.

Abstract: A method for producing an electrochemical bundle of a lithium battery, such as an Li-ion battery, with a view to electrically connecting same to the output terminals of the battery, wherein it includes the combination of two steps of folding an electrochemical bundle of a lithium battery which are carried out separately, i.e. a radial folding with plastic deformation and an axial compacting, which make it possible to obtain two separate areas on at least one, and preferably both, of the lateral ends of the bundle. The invention also concerns a method for producing an electrical connection part between the electrochemical bundle and one of the output terminals of the battery, and an associated current collector.

Abstract: An automatic speech recognition system for recognizing a user voice command in noisy environment, including: matching means for matching elements retrieved from speech units forming said command with templates in a template library; characterized by processing means including a MultiLayer Perceptron for computing posterior templates (P(Otemplate(q))) stored as said templates in said template library; means for retrieving posterior vectors (P(Otest(q))) from said speech units, said posterior vectors being used as said elements. The present invention relates also to a method for recognizing a user voice command in noisy environments.

Abstract: A sealed storage battery including a container containing an electrochemical stack having alternating positive and negative electrodes on either side of separators impregnated with electrolyte; a current output terminal passing through a wall of the container; and a connector electrically connecting the electrodes of one polarity to the terminal passing through a wall of the container. The connector includes a flat connection welded to the electrodes and an elastic connection fitted without welding to the terminal passing through a wall of the container.

Abstract: An electrical storage cell is provided comprising a container (2) carrying an electrode plate group (9) comprising alternating positive and negative electrodes flanking electrolyte-impregnated separators, a current output terminal (7) passing through a wall (5) of the container, and an internal connection part (20) electrically connecting the electrodes of one polarity to the terminal passing through a wall of the container, in which the internal connection part is of copper with at least one copper/nickel co-laminated portion (25, 26), eliminating the need for supplementary welding parts employed for welding the copper internal connection.

Abstract: A storage battery (1) includes a container (2) containing an electrochemical stack (9) comprising alternating positive and negative electrodes flanking electrolyte-impregnated separators. A current output terminal (7) passes through a lid (5) of the container. A connector (10), which electrically connects the electrodes of one polarity to the terminal (7) passing through the lid, includes a flat connection (15) welded to the electrodes and an elastic connection (20) which nests into the terminal (7) passing through the lid. Manufacture of a sealed storage battery is simplified by obviating a manual operation of inserting and bending an elongated connection tab inside the container.

Abstract: A storage battery (1) includes a container (2) containing an electrochemical stack (9) comprising alternating positive and negative electrodes flanking electrolyte-impregnated separators. A current output terminal (7) passes through a lid (5) of the container. A connector (10), which electrically connects the electrodes of one polarity to the terminal (7) passing through the lid, includes a flat connection (15) welded to the electrodes and an elastic connection (20) which nests into the terminal (7) passing through the lid. Manufacture of a sealed storage battery is simplified by obviating a manual operation of inserting and bending an elongated connection tab inside the container.

Abstract: A bus bar assembly includes a flexible member comprising a plurality of apertures provided therein. The bus bar assembly also includes a plurality of electrically conductive members coupled to the flexible member. Each of the plurality of conductive members includes an aperture that is aligned with one of the apertures of the flexible member such that the bus bar assembly is configured for electrically coupling a plurality of electrochemical cells together when at least one terminal of each of the cells is received within an aperture of the flexible member and an associated aperture of one of the plurality of conductive members.

Abstract: An electrical storage cell is provided comprising a container (2) carrying an electrode plate group (9) comprising alternating positive and negative electrodes flanking electrolyte-impregnated separators, a current output terminal (7) passing through a wall (5) of the container, and an internal connection part (20) electrically connecting the electrodes of one polarity to the terminal passing through a wall of the container, in which the internal connection part is of copper with at least one copper/nickel co-laminated portion (25, 26), eliminating the need for supplementary welding parts employed for welding the copper internal connection.

Abstract: A method for determining as a function of time the angle of rotation of a crankshaft by estimating the position of missing teeth on a target wheel is disclosed which has application to engine control. A sensor acquires, as a function of time, a periodic signal comprising a pulsating waveform, each pulse indicating the passage of a tooth past this sensor.