Abstract: An electrochemical energy storage device (1) comprising a casing (2), in which a plurality of flat galvanic cells (3) are arranged. Between two adjacent flat galvanic cells is in each case, a flat heat conducting body (4) and/or a flat elastic body (5) arranged. Preferably, the flat galvanic cells, the flat heat conducting bodies and/or the flat elastic bodies exert upon each other at the contact surface areas, a force (11) corresponding to a surface pressing, and the casing has a wall with a structure or with structures (8, 9), in which a heat conducting body (4) engages such, that said heat conducting body may not be shiftable in the direction of the force (11), acting on the contact surface areas.

Abstract: The invention relates to contacting elements (910) for contacting one or more electrical components, such as e.g. electrochemical energy stores (901, 902), said contacting elements comprising first flat prismatic recesses for receiving the connecting elements of one or more electrical components, especially the conducting leads (903, 904, 905, 906, 907, 908) of one or more electrochemical energy stores, and second flat prismatic recesses for receiving electrical conductors (912, 913, 914, 915). The contacting elements have bores at a right angle to the first and second flat prismatic recesses, said bores receiving fastening means (909, 911).

Abstract: Electrolyte, comprising an aprotic solvent, a lithium salt as conducting salt, and an additive, characterized in that the additive is a compound which contains a protonable nitrogen atom and is hydrolysable by water.

Abstract: The control of the operational states of a battery or the electrochemical cells thereof is implemented on the basis of an evaluation of said operational states. Said evaluation is obtained by means of approximation functions with which the evaluation of second operational states are obtained by interpolating measuring data of first operational states.

Abstract: A hand-power tool includes at least one oscillation-damping device that has at least one damping spring, a damping mass, and a mechanism housing. The oscillation-damping device has at least two retaining parts that at least partly enclose the damping mass.

Abstract: A device for cooling an electrochemical energy store, particularly a galvanic cell containing lithium, is provided with a cooling agent (209) which has an extinguishing effect in the event of a fire and which flows through or around the energy store, the housing thereof (201), or parts of the energy store or of the housing thereof.

Abstract: Battery 1, comprising at least a battery cell 2, which is arranged within a battery housing 3, characterized in that the battery housing 3 is partially filled with a cooling liquid 4. Method for cooling of said battery, wherein at least a portion of the cooling liquid 4 is evaporated.

Abstract: A battery includes a stack of bipolar individual battery cells, each of which includes an electrode stack and two sheet metal covers bounding the individual battery cell at least in the stacking direction. The electrode stack is connected to at least one of the sheet metal covers by at least one weld. In the region of the at least one weld, the sheet metal cover welded to the electrode stack and/or the sheet metal cover of the adjacent individual battery cell in contact with the sheet metal cover is/are of a set-back design. As a result, the sheet metal covers of adjacent individual battery cells do not have any contact in the region of the at least one weld.

Abstract: The invention relates to a battery housing (1) for receiving one or more battery cells (2), comprising a cover surface (3), a floor surface (4), and a sealing plate (5) disposed between the cover surface and the floor surface. The invention further relates to a retaining frame (10) for a battery cell (2), comprising a floor part (11), a cover part (12), and a sealing part (12) disposed between the floor part and the cover part.

Abstract: The electric energy storage cell according to the invention is provided with: an active part, which is designed and adapted to store electric energy supplied externally and to release stored electric energy to the exterior; a casing consisting of a film material, which surrounds the active part in a gas- and liquid-tight manner; and at least two current collectors that are connected to the active part and are designed and adapted to supply electric current externally to the active part and to release electric current from the active part to the exterior. According to the invention, the part that is surrounded by the casing follows the contours of a prismatic structure with a substantially parallelepipedal form, said structure extending to a substantially lesser extent in a first spatial direction than in the other two remaining spatial directions and substantially defining two opposing, parallel flat faces and four narrow faces that connect the two flat faces.

Abstract: A tensioning element of a traction drive, which has a cylindrical housing. In the housing a piston is guided in a linearly displaceable manner. In order to fasten the tensioning element (1), the housing and the piston correspondingly enclose a respective coupling point. Furthermore, a spring means, which at least in regions surrounds a guide sleeve, is arranged between the components made from plastic. The piston is guided in a linearly displaceable manner in the cylinder by a plain bearing bush. For the purpose of positional orientation and for limiting the stroke, a pin, which is inserted in the piston, engages in a longitudinal slot in the cylinder in a form-fitting manner.

Abstract: An accumulator comprises at least one galvanic cell and a receiving device for supporting the galvanic cell(s) of the accumulator. The receiving device comprises at least one protecting wall for receiving energy by means of elastic and/or plastic deformation. The protecting wall encases the at least one galvanic cell at least partially and has a thickness which is at least partially less than about 1/10 of the characteristic edge length of the at least one galvanic cell.

Abstract: The invention is based on a handheld power tool, having at least one vibration-cancelling device that has at least one cancellation spring and one cancellation mass. It is proposed that the cancellation mass is constructed of at least one first mass part and at least one second mass part.

Abstract: An accumulator comprises at least one galvanic cell and a receiving device for supporting the galvanic cell(s) of the accumulator. The receiving device comprises at least one protecting wall for receiving energy by means of elastic and/or plastic deformation. The protecting wall encases the at least one galvanic cell at least partially and has a thickness which is at least partially less than about 1/10 of the characteristic edge length of the at least one galvanic cell. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: A spring element that is designed for a flexible drive of an internal combustion engine. The spring element has a cylinder, in which a piston is guided in a linearly displaceable manner, a force being applied to the piston by spring means. Corresponding fixing eyes are respectively allocated to the cylinder and the piston for fixing the spring element. A transverse pin is associated with the piston to limit the travel of the spring element. The pin engages in a positive fit with backlash in a longitudinal guiding element of the cylinder.

Abstract: An accumulator comprises at least one galvanic cell and a receiving device for supporting the galvanic cell(s) of the accumulator. The receiving device comprises at least one protecting wall for receiving energy by means of elastic and/or plastic deformation. The protecting wall encases the at least one galvanic cell at least partially and has a thickness which is at least partially less than about 1/10 of the characteristic edge length of the at least one galvanic cell. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: The invention relates to a tensioner (1, 1?, 1?) for a traction means such as a belt, a chain or the like, having a tensioning lever (2) which is in operative connection with a helical spring (32) and is pivotable about a fixed axis (20) and on which a receptacle (21) for a tensioning element for bearing against the traction means to be tensioned is arranged, the helical spring (32) being held at its ends by spring receptacles (30, 31; 30?, 31?; 30?, 31?). It is proposed that the helical spring (32) be screwed to at least one of the spring receptacles (30, 31; 30?, 31?; 30?, 31?). This construction ensures that a reliable and easy-to-assemble connection between the helical spring (32) and the spring receptacle (30, 31) is achieved at this point.