摘要:
A process for manufacture of integrated membrane-electrode-assemblies (MEAs), which comprise an ionomer membrane, at least one gas diffusion layer (GDL), at least one catalyst layer deposited on the GDL and/or the ionomer membrane, and at least one protective film material is disclosed. The components are assembled together by a lamination process comprising the steps of heating the components to a temperature in the range of 20 to 250° C. and laminating the materials by applying a laminating force in the range of 50 to 1300 N with a pair of rolls. The claimed lamination process is simple and inexpensive and is used for manufacture of advanced, integrated MEAs for electrochemical devices such as PEM fuel cells and DMFC.
摘要:
The measurement method according to the invention for an electrochemical energy storage device involves the electrochemical energy storage device being held (S1) and having contact made with it (S2) in a holding device. The electrochemical energy storage device is charged (S3) to a predetermined first charge state. The electrochemical energy storage device is discharged (S4) to a predetermined second charge state. A measuring device is used to capture (S5) at least one measured value for a physical parameter of the electrochemical energy storage device, with the physical parameter allowing the operating state of the electrochemical energy storage device to be inferred.
摘要:
A storage device for electrical energy with a plurality of flat storage cells for the storage and the discharge of electrical energy with opposing flat-shaped conductors, spacer elements for maintaining a predetermined space between the storage cells and a clamping means for the clamping of the cells into a stack. The spacer elements have pressure surface areas, wherein the conductors of the cells, each are clamped between the pressure surface areas of two spacer elements by the clamping means by means of force closure. In the area of opposing pressure surface areas of a spacer element, either a contacting element for establishing an electrical connection between the opposing pressure surface areas or an insulating structure is provided. The spacer elements are provided such, that the compressions between the pressure surface areas with an insulating structure and between the pressure surface areas with a contacting element, are ajusted to each other.
摘要:
The assembly or design of the energy conductors (103, 104, 502) of a storage element (101, 305, 501) for electric energy has specific assembly or design elements (201, 202, 203, 204, 301, 302, 303, 404, 405, 406, 407, 412, 413), which counteract a polarity reversal of the storage element or storage elements upon assembly of such storage elements with other similar storage elements to form a storage block, or upon connection of a storage block to an energy consumer or energy supplier equipped with corresponding contact or retaining elements.
摘要:
The invention relates to a method for producing a battery arrangement (101, 201, . . . ), comprising at least one first electrochemical cell (102, 202,) and at least one second electrochemical cell (102, 202), wherein each electrochemical cell comprises a shell (103, 203), characterized in that a shell part (104, 105, 112; 204, 205, 212;) of the shell (103, 203,) of the first electrochemical cell (102, 202), is adhesively bonded to a shell part (104, 105, 112; 204, 205, 212;) of the shell (103, 203,) of the second electrochemical cell (102, 202).
摘要:
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.
摘要:
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.
摘要:
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).
摘要:
The invention relates to an electrical energy unit (2, 102, 202, 302) comprising a plurality of electrical energy cells (4), which are stacked in a stacking direction to form a cell block and are connected to each other in parallel and/or in series within the cell block, the electrical energy cells having planar conductors (14), which protrude from the cell substantially in parallel with each other in two directions, the main surfaces of the conductors being oriented substantially perpendicularly to the stacking direction, the conductors of a cell at least partially not covering each other, as viewed in the stacking direction, and each conductor of a cell at least partially covering a conductor of a subsequent cell in the stacking direction, as viewed in the stacking direction. The electrical energy unit is characterized in that the electrical connection between opposite conductors is produced by spacers that do or do not establish contact therebetween, the spacers (20, 120, 220, 520, 620) being arranged in intermediate spaces between conductors of consecutive cells, the spacers being clamped between the conductors by a compressive force by means of a clamping device (10, 506, 508, 524, 526), the clamping device being arranged completely outside the conductors. The invention further relates to spacers for use between conductors of consecutive cells in such an electrical energy unit.
摘要:
The invention relates to an electrical energy storage device comprising a plurality of flat storage cells for storing and discharging electrical energy, having opposing flat current collectors, a plurality of frame elements for maintaining the storage cells, and a clamping means for clamping the cells with the frame elements into a stack. Each storage cell carries at least one measurement or sensor element for measuring at least one physical variable, to which at least one respective cable for transmitting the measurement data is fixed. The frame elements comprise first recesses for receiving the measurement or sensor elements and second recesses connected to the first recesses, the second recesses of the frame elements together forming at least one channel extending over the length of the device for receiving the cables.