Abstract: A rolling bearing device for a mobility apparatus includes a first support, a second support, the first support and the second support being able to rotate with respect to one another. A first race that is able to be mounted fixedly in terms of rotation on the first support, and a second race is able to be mounted fixedly in terms of rotation on the second support. A damping device includes at least one elastic element disposed between the first support on one side and the first and the second race on the other side. The damping device also has a vibration dissipating member which is disposed between the first support and the elastic element, the vibration dissipating member being configured to dissipate the vibrations through shear.

Abstract: The invention concerns an alveolar cooling structure (3) which is configured to dissipate the heat generated by at least one electronic component (40) placed on an upper surface (21) of a substrate (2), the alveolar cooling structure (3) being in contact with an inner surface (22) of the said substrate (2). The alveolar cooling structure (3) comprises cells, the cell edges of which increase a total contact surface between the alveolar cooling structure (3) and a cooling fluid; and pores which are defined by the cells and distributed in the volume of the alveolar cooling structure (3), the cooling fluid circulating through the pores and/or through the spaces between the pores.

Abstract: A sealed one-piece battery comprises a container having at least one wall and divided into contiguous compartments which receive electrode assemblies by at least one partition attached to the wall. A device for measuring the temperature of the electrode assemblies comprises at least one sensor disposed in a housing formed within the thickness of at least one of the partitions. The opening of the housing is on the external face of the wall.

Abstract: A one-piece battery comprises a tank divided into cells each receiving an electrode assembly, closure means for the tank and a circulating fluid type heat exchanger facing the relatively larger faces of the electrode assembly. The fluid flows in a compartment defined by two flanges which incorporate a fluid inlet orifice communicating with a common inlet manifold and a fluid outlet orifice communicating with a common outlet manifold. The tank comprises at least two units and each unit comprises at least one cell delimited by walls. The wall facing a relatively larger face of the electrode assembly constitutes one of the flanges. Each unit further incorporates a portion of an inlet and outlet manifold. The units are fastened together so that the flanges when placed face-to-face form a sealed circulation compartment and the portions of the same manifold are aligned with each other.

Abstract: The valve cap for an electric storage cell includes a central annular valve seat (23) and a membrane (5) fixed by its peripheral edge and urged against the seat by a piston (10) bearing thereagainst by means of a spring (12), the rear end of said spring (12) bearing on the endwall (8) of a chamber (20) formed in the cap and containing the piston (10) and the spring. A vent (19) puts the chamber (20) into communication with the atmosphere. A central orifice (26, 28) through the piston (10) and the membrane (5), enables gas from within the cell to escape via the top vent (19) when the valve opens.

Abstract: A sealed one-piece battery having a prism-shaped container including:a tank consisting of a single plastic material,a member fixed and sealed to the tank and to partitions on the side of the tank opposite the transverse wall to seal the tank,two flanges fixed and sealed to longitudinal walls defining flow compartments for a heat-conducting fluid,and two tubes on the transverse wall of the tank forming an inlet and an outlet for fluid common to the compartments.

Abstract: The present invention relates to a sealed battery block operating at a pressure of at least 1 bar relative, the battery including a container made of a plastics material and made up of a lid and of a case subdivided into wells by at least one partition, said battery being provided with a cooling system including two cheek plates made of a plastics material and co-operating with the outside faces of respective ones of two opposite walls of said case, each cheek plate co-operating with the corresponding wall to define a compartment provided with a plurality of ribs forming baffles for fluid flow purposes, and with an inlet orifice and an outlet orifice for the fluid, said battery being characterized in that each of said ribs extends in a direction that forms an angle relative to the plane of said partition lying in the range 60.degree. to 90.degree..

Abstract: A sealed feed-through device for an insulative partition wall between two electrode assemblies of a storage battery comprises a first connecting member connected to ends of assembled plate heads of the same polarity of a first assembly and a second connecting member connected to ends of assembled plate heads of the same opposite polarity of a second assembly separated from the first assembly by the insulative wall. One connecting member includes a blind hole having an axis perpendicular to the wall and an open end facing the wall. A seal coaxial with the blind hole is pressed against the wall and housed in a groove in the connecting member. The other connecting member includes a bore through hole coaxial with and having the same cross section as the blind hole. The two connecting members press one against the other through a hole in the wall without either member penetrating into the hole in the wall to a depth exceeding the thickness of the wall.

Abstract: The casing of a leak-proof one-piece battery is made of a material comprising a mixture of at least a matrix based on polypropylene and an alloy of a polyamide and a polypropylene. The ratio of the matrix to the alloy is in the range 0.5 to 6 by weight. The alloy forms elongate arborescent inclusions in the matrix such that, on average, the largest dimension of a segment of the arborescence is at least twenty times the smallest dimension of the segment.

Abstract: The present invention relates to a sealed one-piece battery having an alkaline electrolyte and comprising a container made of at least two mutually-cooperating parts suitable for being bonded together by contact heat-fusion and made of a thermoplastic material comprising an alloy of at least two polymers, including not less than 50% of a first polymer selected from polyamide 6 and polyamide 6--6; and not more than 50% of a second polymer selected from polyethylene, polypropylene, and copolymers thereof; said material having permeability to hydrogen no greater than 400 cm.sup.3 /m.sup.2 0.24 h.

Abstract: An electrode plate including an active portion pasted with active material and a plate head including a connection tab. The plate head is constituted by the same metal foam as the plate support, but the density of the metal foam in the plate head is not less than 2.5 times the density of the metal foam in the remainder of the electrode plate, the higher density of the plate head coming from an operation in which the foam of the support is compressed, the tab of the plate head emerging from the middle of the thickness of the plate and being derived from compression of the support in two directions: compression firstly in the direction of its height; and compression secondly in the direction of its thickness. Such an electrode plate is made from a plate of metal foam whose top edge is compressed so as to form the plate head.

Abstract: A method of bonding a metal connection to an electrode including a core having a fiber or foam-type structure for an electrochemical cell, in which method at least one metal strip is pressed against one edge of the core and is welded thereto under compression, wherein, at least in line with the region in which the strip is welded to the core, which is referred to as the "main core", a retaining core of a type analogous to that of the main core is disposed prior to the welding.

Abstract: A method for forming an electrode plate which includes an active portion pasted with active material and a plate head which includes a connection tab. The plate head is constituted by the same metal foam as the plate support, but the density of the metal foam in the plate head is not less than 2.5 times the density of the metal foam in the remainder of the electrode plate, the higher density of the plate head coming from an operation in which the foam of the support is compressed, the tab of the plate head emerging from the middle of the thickness of the plate and being derived from compression of the support in two directions: compression firstly in the direction of its height; and compression secondly in the direction of its thickness. Such an electrode plate is made from a plate of metal foam whose top edge is compressed so as to form the plate head.

Abstract: A method of bonding a metal connection to an electrode including a core having a fiber or foam-type structure for an electrochemical cell, in which method at least one metal strip is pressed against one edge of the core and is welded thereto under compression, wherein, at least in line with the region in which said strip is welded to the core, which is referred to as the "main core", a retaining core of a type analogous to that of the main core is disposed prior to the welding.

Abstract: The electrode plate includes an active portion that is pasted with active material, and a plate head that is made up of three layers of compressed metal foam comprising: a non-pasted portion of height G of the support of the electrode plate; and two strips of non-pasted metal foam of height R on either side of the non-pasted portion of height G of the support and also extending for an overlap height h.sub.2 over the pasted portion of the support. The plate head includes a zone of reduced thickness including a portion that is maximally compressed, and a transitional portion between said maximally compressed portion and the remainder of the electrode which is of thickness e.sub.2. A portion of said plate head forms a connection tab. The method of obtaining the electrode consists in simultaneously rolling all three layers of metal foam in the plate head, and then in cutting matter away from the plates so as to obtain respective connection tabs.