Abstract: The invention relates to the filling of an electrochemical cell (10) with an electrolyte, said cell having, in its interior (12), at least one electrode stack and one casing which at least partially encloses the electrode stack(s). For filling to take place, a negative pressure is generated in the interior (12) of the cell (10) (step S3) and the interior (12) of the cell (10) is then connected to an electrolyte feed (24) (step S5). In order to ensure that the cell (10) is filled with the electrolyte in a uniform and total manner, a first pressure and a second pressure are alternatingly applied to an outer side (14) of the cell (10) while the electrolyte feed (24) is connected, the second pressure being lower than the first pressure (steps S6 and S7).

Abstract: Method for producing electric cells for electrochemical energy storage devices, the method of production comprising the following steps: (S1a) feeding an anode strip, (S1b) feeding a cathode strip (20), (S1c) feeding a separator strip (30), preferably two separator strips, (S3a) stamping out an anode element from the anode strip, (S3b) stamping out a cathode element from the cathode strip (20), (S5) cutting the separator strip (30), preferably the two separator strips, into separator elements, (S6a) applying an anode element to a first separator element to form an anode-separator element, (S6b) applying a cathode element to a second separator element to form a cathode-separator element, and (S7) stacking an anode number of anode-separator elements and a cathode number of cathode-separator elements to form an anode-separator-and-cathode-separator stack.

Abstract: What is described is: a method for cutting leaf-like or plate-like objects, in particular electrodes and/or separators for constructing an electrochemical energy store or parts of such electrodes or separators, wherein the cutting method has the following steps: (S1) leading the objects to be cut (1) up to a laser cutting apparatus (2), (S2) cutting the objects (1) with the laser cutting apparatus (2), and (S3) performing processing operations at the cutting edges (3) in order to reduce micro-short-circuits. The step (S3) of performing operations at the cutting edges (3) for reducing micro-short-circuits can comprise (S3a) structuring of the cutting edges (3) and/or application of support materials to the cutting edges (3).

Abstract: The invention relates to an electrical component having a device for isolating an electrical line connection, wherein said electrical component comprises a reactive multi-layer structure in order to effect isolation of the electrical line connection. The electrical component can be a galvanic cell, and the device for isolating can be disposed outside or inside the cell. The electrical component can also be a cell connector. A quick and reliable isolation of galvanic cells from a combination of several galvanic cells or a quick and reliable dismantling of large cells into segments can be achieved.

Abstract: Plate-shaped current conductor (12) for a galvanic cell, with a first surface (16) and a second surface (17), which essentially face each other, and are connected with each other via a first side surface (18) and a second side surface (19), characterized in that the plate-shaped current conductor has, in the area of the first and/or second side surface (18,19), a segment, which has a thickness (d), which is reduced in regard to its cross section vis-à-vis the thickness (D) as defined by first and second surface (16, 17) of the current conductor, which segment extends at least substantially over a sealing area (14) of the current conductor.

Abstract: In a method for producing an electrode stack for an electrochemical energy store, in which anodes (5) and cathodes (8) are stacked alternately and in each case are separated by at least one separator (6, 7), at least one anode (5) or cathode (8) and at least one separator (6,7) are supplied. The at least one anode (5) or cathode (8) and the at least one separator (6, 7) are gripped by at least one gripper (19, 20, 21, 22, 24-29) and deposited to form the electrode stack.

Abstract: The invention relates to an electrochemical energy store (301, 401), comprising a first attachment element (306, 308, 409, 410, 411, 412) which is designed in such a manner that, when such a first electrochemical energy store (319), or at least one such first attachment element of said first such electrochemical energy store, is pressed against a second such electrochemical energy store (320) or against at least one second such attachment element of said second such electrochemical energy store (320), an attachment of the first electrochemical energy store to the second electrochemical energy store takes place.

Abstract: An assembly of an electrode stack (120) comprises at least one anode layer, at least one cathode layer and at least one separator layer arranged between the at least one anode layer and the at least one cathode layer. Thereby, at least one fixing device (110, 210, 310, 410, 610) is provided which fixes at least two layers of the electrode stack (120) relative to one another, wherein the at least one fixing device consists at least partially of polypropylene.

Abstract: A housing (1) for accommodating at least one flat electrochemical cell (2), which has a seal seam (3) extending at least regionally along the edge of said cell, comprises two housing side walls (4) which are arranged substantially parallel to one another and which are provided, in the mutually opposite inner surfaces thereof, with a pair of incisions (5) situated opposite one another for each cell (2) that is to be accommodated, said incisions being designed to accommodate the at least one seal seam (3) of the particular cell (2). The housing (1) here is preferably formed of a foam material.

Abstract: In a method or in a device for fighting or preventing fires in the interior, on the surface, or in the surroundings of an electrochemical energy store, a unit is provided which ensures that the concentration of an inert gas or of a mixture of inert gases in the interior, on the surface, or in the surroundings of the electrochemical energy store does not fall below a predetermined value.

Abstract: An electrochemical energy storage device comprises a plurality of flat storage cells (2) each having a first current conductor (18a) and a second current conductor (18b) on a narrow side of the storage cell (2); a plurality of spacing elements (4) each being arranged between two storage cells (2) for maintaining a predetermined distance between the storage cells (2); and a clamping means (10) for clamping the storage cells (2) and spacing elements (4) together to form a stack. The spacing elements (4) each have a first pressure surface (22a) and a second pressure surface (22b) on their two sides facing a storage cell (2).

Abstract: In a method for predicting the electrical power an electrochemical energy store can output to a consumer, a processor device preferably processes at least one measurement from a plurality of measurements of the cell voltage depending on time in an information technological manner, said measurements being carried out previously on an electrochemical energy store of the same design which is subject to a plurality of discharges of the electrochemical energy store and has a power output that is constant over time and the measurements being stored in a digital memory device.

Abstract: A power supply system (1), in particular for an electric drive or hybrid drive of a motor vehicle, has the following components: an electrical energy storage device (2) which supplies a low voltage and which has at least one energy storage cell (3) and/or at least one cell module (4) composed of at least two energy storage cells (3), an electrical load (5) which is operated with a high voltage, a voltage transformer (6), in particular a DC voltage transformer, which transforms a low voltage into a high voltage and/or a high voltage into a low voltage, and a control device (8) for controlling the electrical energy storage device (2). In addition, the power supply system (1) has a low voltage region (9) in which the electrical energy storage device (2) is arranged, and a high-voltage region (10) in which the electrical load (5) is arranged. It is proposed that the control device (8) be arranged essentially in the low-voltage region (9) of the power supply system (1).

Abstract: An electrochemical cell (100) comprises at least one electrode stack (150) having at least one conductor device (110) and at least one casing (130). The casing (130) at least partially encases the electrode stack (150) and has at least one passage section (140) for the least one conductor device (110) from the interior to the exterior of the casing. At least one protective device (120) is disposed at this passage section (140) to maintain a substantially fluid-tight property of the casing (130) in the area of this passage section (140), i.e. to minimize the danger of damaging the casing (130) and/or its sealing seam in the area of this passage section (140).

Abstract: The invention relates to a method for depositing leaf-shaped objects (4, 5), and to an assembly for carrying out said method, wherein a plurality of such objects are successively placed on top of each other, and wherein, at intervals, single or several objects are removed again from the top. To this end, the objects (4, 5) are placed on top of each other offset from one another and/or rotated in relation to one another.

Abstract: A separator for a lithium ion battery, characterized in that same comprises graphene.

Abstract: A transporting apparatus (100; 102; 104) for at least one electrochemical energy-storage means (150) has at least one accommodating means (110, 120, 130, 140, 160), for accommodating the hazardous substance (150) at least in part, and at least one safety device (132, 134, 136, 138, 142, 170, 180), for safeguarding against a hazard situation caused by the hazardous substance (150) accommodated.

Abstract: In accordance with the invention, an accumulator comprises at least two galvanic cells that are electrically connected. The accumulator furthermore comprises a control device and at least one measuring device. The measuring device is suitable to determine at least one reading for at least one first functional parameter of a galvanic cell. The accumulator comprises a memory device which is assigned to the control device. The memory device is suitable for storing at least one target value of a first functional parameter. The accumulator furthermore comprises a computing unit. The computing unit is suitable for assigning at least two measured values and one pertinent target value to a first computed result. The measured values are the measured first functional parameters, respectively of at least two galvanic cells of the accumulator. The target value is a predetermined value in respect to the first functional parameter.

Abstract: An electrochemical energy converter device (1) with at least one in particular rechargeable electrode assembly (2), which is provided to provide electrical energy at least intermittently to a consumer in particular, which has at least two electrodes (3, 3a) of different polarity, with at least a current conduction device (4, 4a), which is provided to be electrically, preferably materially connected to one of the electrodes (3, 3a) of the electrode assembly (2), with a cell housing (5) with a first housing part (6), wherein the first housing part (6) is provided to encompass the electrode assembly (2) at least in certain areas.

Abstract: An electrochemical cell has an energy unit (10) which has an electrode stack, at least one main lead (12, 14) which is connected to the electrode stack, and a casing (18) which at least partially surrounds the electrode stack; at least one frame element (16) which at least partially accommodates the energy unit (10); and at least one pressure-relief apparatus (32, 46). The casing (18) has a plurality of edge sections at the peripheral narrow sides of the electrochemical cell, wherein the at least one main lead (12, 14) extends at least partially out of the casing (18) in a first edge section and this first edge section of the casing (18) has a substantially fluid-tight first sealing seam (20, 22).