Grid arrangement for a plate-like battery electrode of an electrochemical storage battery
The die-cast grid arrangement for battery electrodes optimizes material usage and enhances vibration resistance by employing a frame with Y-shaped transitions and optimized strut configurations, addressing the challenges of material reduction and durability in electrochemical accumulators.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- CLARIOS GERMANY GMBH & CO KG
- Filing Date
- 2025-10-28
- Publication Date
- 2026-05-15
AI Technical Summary
Existing grid arrangements for plate-shaped battery electrodes in electrochemical accumulators, particularly those used in truck starter batteries, face challenges in reducing lead or lead alloy usage while maintaining performance and resisting high vibration loads, which can cause damage such as cracking or tearing.
A die-cast grid arrangement with a frame and internal grid structure featuring vertical and horizontal struts, including Y-shaped transitions and optimized strut lengths and thicknesses, designed to enhance vibration resistance and reduce material usage.
The grid arrangement achieves up to 2% material savings with improved resistance to vibration loads, preventing cracking and tearing, while maintaining electrical conductivity and reducing mechanical stress peaks.
Smart Images
Figure EP2025081106_15052026_PF_FP_ABST
Abstract
Description
[0001] October 28, 2025
[0002] Clarios Germany GmbH & Co. KG M / JCI-538-PC CPS Technology Holdings LLC TR / lj
[0003] Grid arrangement for a plate-shaped battery electrode of an electrochemical accumulator
[0004] Description
[0005] The invention relates generally to the field of electrochemical accumulators with plate-shaped battery electrodes, which are also referred to as electrode plates. Such accumulators are manufactured in particular as lead-acid accumulators.
[0006] In particular, the invention relates to a grid arrangement for a plate-shaped battery electrode of an electrochemical accumulator.
[0007] Grid arrangements of such battery electrodes are described, for example, in publication DE 10 2008 029 386 Al and in publication WO 2001 / 04977 Al.
[0008] Such grid arrangements are usually made of lead or a lead alloy. Due to rising raw material prices and the goal of reducing the weight of electrochemical batteries, it is desirable to minimize the amount of lead or lead alloy used.
[0009] On the other hand, due to their sometimes quite delicate lattice structure, known lattice arrangements from the prior art can be damaged under specific operational loads, for example in commercial vehicle applications such as truck starter batteries. The vibration loads occurring in such vehicles can be very high under certain circumstances.
[0010] Especially with such batteries, particularly truck starter batteries, the individual grid struts of the grid arrangement cannot be arbitrarily modified to save material, as this would otherwise reduce the battery's performance. MEISSNER BOLTE M / JCI-538-PC
[0011] 2
[0012] Due to the problem described, the invention is therefore based on the objective of providing an optimized grid arrangement in which the amount of lead or lead alloy used can be reduced without impairing other performance characteristics. In particular, despite the desired material savings of the raw material lead, the grid arrangement should have a more robust design characterized by improved vibration resistance.
[0013] This problem is solved according to the invention by the subject matter of independent claim 1, wherein advantageous further developments of the grid arrangement according to the invention are specified in dependent claims 2 to 26.
[0014] Accordingly, the invention relates in particular to a grid arrangement for a plate-shaped battery electrode of an electrochemical accumulator, wherein the grid arrangement comprises a frame and a grid arranged inside the frame. The frame has an upper frame element, on the side of which facing away from the grid a connecting tab of the battery electrode is arranged. In addition to the upper frame element, the frame has a lower frame element opposite the upper frame element, as well as two opposing lateral frame elements that connect the upper and lower frame elements, respectively.
[0015] The connecting flag is attached to or within a first end region of the upper frame element. A first lateral frame element of the two lateral frame elements connects the first end region of the upper frame element to the lower frame element, while the second lateral frame element connects a second end region of the upper frame element, opposite the first end region of the upper frame element, to the lower frame element.
[0016] The design of the grid arrangement according to the invention is characterized in particular by the fact that the grid has a plurality of vertical grid struts, each vertical grid strut having a first end region connected to the upper frame element, and furthermore, each vertical grid strut having at least one second end region at least partially or partially opposite the first end region, which is connected to the lower frame element or to the second lateral frame element. MEISSNER BOLTE M / JCI-538-PC
[0017] 3
[0018] The grid arrangement according to the invention is a grid arrangement manufactured using a die casting process. This has the advantage that robust grid arrangements for lead-acid batteries can be produced at particularly low manufacturing costs. Given the increased cost of raw materials, such as lead or lead alloys, manufacturing the grid arrangement using a die casting process is particularly advantageous, as this process eliminates the stamping waste generated by conventional stamping. Consequently, the effort required for later collection and recycling of stamping waste is also eliminated, since it is not generated in the first place. Manufacturing via a die casting process allows for particularly fast and efficient production of grid arrangements, which has the advantage of enabling the efficient use of existing machinery.
[0019] The grid arrangement according to the invention is characterized by a significantly improved resistance to vibration loads. Undesirable cracking or even tearing in the area of the connecting flange, its transition into the grid structure and in the grid itself can be avoided, even in applications in commercial vehicles.
[0020] The inventive structure of the grid of the grid arrangement allows for a significant reduction of mechanical stress peaks, particularly in certain critical areas of the grid. These improvements are achieved without adding large quantities of material to reinforce the critical area, as is necessary with prior art approaches. On the contrary, due to the special design of the grid of the grid arrangement, up to 2% of material can be saved compared to conventional grid arrangements of the same size, while still reducing mechanical and electrical stress peaks in critical areas of the grid.
[0021] In the inventive design of the grid arrangement, this is achieved in particular by the fact that at least one vertical grid strut, and preferably several vertical grid struts, have a first end region and at least two second end regions that are at least partially or partially opposite the first end region, wherein the at least two second end regions are connected to the first end region via a transition region. MEISSNER BOLTE M / JCI-538-PC
[0022] 4
[0023] The transition area is formed in particular by a Y-shaped grid strut area.
[0024] Studies have shown that critical mechanical and electrical stress peaks in grid arrangements occur particularly in areas of the grid that are near the terminal area.
[0025] Thus, according to a further development of the grid arrangement according to the invention, it is provided that, viewed in a top view of the grid arrangement, in which the first end region of the upper frame element is located on the upper right and the second end region of the upper frame element is located on the upper left, the transition region and preferably all transition regions are located in the upper right quadrant of the grid.
[0026] With regard to optimized electrical conductivity of the grid of the grid arrangement, it is advantageous that several vertical grid struts have a first end region and two second end regions that are at least partially or partially opposite the first end region and connected to the first end region via a preferably Y-shaped grid strut region, wherein at least one vertical grid strut and preferably exactly one vertical grid strut is arranged between two adjacent vertical grid struts of the several vertical grid struts, each of which has two second end regions, and which has only one first end region and only one second end region.
[0027] Alternatively or additionally, according to embodiment variants of the grid arrangement according to the invention, it is provided that, viewed in a top view of the grid arrangement in which the first end region of the upper frame element is located on the upper right and the second end region of the upper frame element is located on the upper left, each vertical grid strut of the grid has a positive slope or runs parallel to a longitudinal extension direction of the first lateral frame element.
[0028] In this context, it is particularly advantageous that only one vertical grid strut immediately adjacent to the first lateral frame element and, if applicable, one vertical grid strut immediately adjacent to this vertical grid strut, MEISSNER BOLTE M / JCI-538-PC
[0029] 5. The first lateral frame element runs parallel to the longitudinal extension direction, while the course of the remaining vertical grid struts has a positive slope.
[0030] In particular, in these embodiments of the grid arrangement according to the invention, it is provided that the particularly positive slope of the vertical grid struts decreases with increasing distance to the first lateral frame element.
[0031] The grid of the grid arrangement according to the invention further comprises a plurality of horizontal grid struts. Each horizontal grid strut has a first end region which is connected to a vertical grid strut of the vertical grid struts or to the second lateral frame element. Furthermore, each horizontal grid strut has a second end region which is at least partially or partially opposite the first end region and which is connected to a horizontal grid strut of the vertical grid struts or to the first lateral frame element.
[0032] To enable the grid arrangement to be manufactured in the simplest yet most efficient way possible using a casting process, and to ensure that critical areas of the grid structure do not fail even under mechanical and electrical stress peaks, it is particularly provided that the horizontal grid struts are relatively short. Specifically, it is provided that at least 85%, more particularly at least 90%, and preferably at least 95% of the horizontal grid struts have a length of < 8 mm, more particularly < 7 mm, and preferably < 6 mm.
[0033] In embodiments of the grid arrangement according to the invention, it is provided that at least 85%, in particular at least 90% and preferably at least 95% of the horizontal grid struts have a length of 6.0 mm to 4.0 mm.
[0034] In this context, it is specifically provided that the first grid strut of the vertical grid struts is positioned closer to the second lateral frame element than the second grid strut of the vertical grid struts. MEISSNER BOLTE M / JCI-538-PC
[0035] 6
[0036] The grid arrangement comprises a plurality of grid windows, which are formed by two opposing horizontal grid struts and two opposing sections of vertical grid struts. In embodiments of the grid arrangement according to the invention, the grid windows are relatively small. In particular, according to embodiment variants, it is provided that in at least 50%, in particular in at least 60%, in particular in at least 75%, and preferably in at least 85% of these grid windows, the horizontal grid struts have a length of a maximum of 50%, in particular in a maximum of 40%, and preferably in a maximum of 35% of the length of the section of the vertical grid struts.
[0037] Furthermore, in embodiment variants of the grid arrangement according to the invention, it is provided that preferably each grid window or at least a majority of the grid windows has an area of 72 mm². 2 up to 78 mm 2, preferably an area of 72 mm² 2 up to 75 mm 2 and even more preferably an area of 72 mm 2 smaller than 75 mm 2 surrounds.
[0038] In particular, it has proven especially advantageous if the deviation of an average grille window size determined over at least two adjacent grille windows is at most 10% for the grille windows of the grille.
[0039] To facilitate the separation of the grid arrangements from one another, embodiments of the grid arrangement according to the invention provide that, in particular, cap-shaped or frustoconical projections are formed on the vertical and / or horizontal grid struts, which extend perpendicular to the plane in which the grid of the grid arrangement lies. Preferably, the projections are designed to be at least substantially rotationally symmetrical.
[0040] The projections have a height of 0.3 mm to 0.9 mm, although this range is not considered restrictive. In particular, the projections are formed at least partially in the end regions of the horizontal grid struts or in the end regions of some horizontal grid struts. MEISSNER BOLTE M / JCI-538-PC
[0041] 7
[0042] According to embodiments of the grid arrangement according to the invention, the grid arrangement has a first, in particular medium, thickness in the area of the connecting lug and a second, in particular medium, thickness in the area of the frame, wherein the first, in particular medium, thickness in the area of the connecting lug is greater than the second, in particular medium, thickness in the area of the frame. The first, in particular medium, thickness in the area of the connecting lug is preferably 1.1 mm to 1.3 mm.
[0043] The second, in particular middle, thickness in the area of the frame is preferably 0.93 mm to 1.13 mm and in particular about 1.03 mm.
[0044] The vertical grid struts have, at least in certain areas, a first, in particular intermediate, thickness and at least one second, in particular intermediate, thickness that differs from the first, in particular intermediate, thickness. For example, the first, in particular intermediate, thickness is 0.93 mm to 1.13 mm and preferably about 1.03 mm, while the second, in particular intermediate, thickness of the vertical grid struts is 0.83 mm to 1.03 mm and in particular about 0.93 mm.
[0045] The horizontal grid struts have, at least in certain areas, a first, in particular intermediate, thickness and, at least in certain areas, a second, in particular intermediate, thickness that differs from the first, in particular intermediate, thickness of the horizontal grid struts. In particular, the first, in particular intermediate, thickness of the horizontal grid struts is 0.7 mm to 0.9 mm and preferably about 0.8 mm, while the second intermediate thickness of the horizontal grid struts is 0.6 mm to 0.8 mm and preferably about 0.7 mm.
[0046] To stiffen the vertical grid struts, embodiments of the grid arrangement according to the invention provide for groove- or slot-shaped areas to be formed in the vertical grid struts, particularly in areas of the vertical grid struts where the horizontal grid struts terminate. Of course, it is also conceivable to provide such groove- or slot-shaped areas in the horizontal grid struts.
[0047] Viewed from above, the grid of the grid arrangement preferably has all vertical grid struts or at least a majority of the vertical MEISSNER BOLTE M / JCI-538-PC
[0048] 8
[0049] Grid struts and / or all horizontal grid struts or at least a majority of the horizontal grid struts each have a constant width when viewed along the longitudinal direction of the respective grid strut.
[0050] In particular, the grid of the grid arrangement has a front and a back, wherein on the front of the grid the vertical grid struts and the horizontal grid struts lie in a common plane, whereas on the back of the grid the vertical grid struts lie in a first plane and the horizontal grid struts lie in a second plane parallel to the first plane.
[0051] Finally, in embodiments of the grid arrangement according to the invention, it is provided that at least one grid window arranged below the connecting flag of a first row of grid windows, viewed from the upper frame element, has at least one rounded corner, the radius of which is greater than > 10%, in particular > 15%, in particular > 25%, of the height or width of the grid window.
[0052] The grid arrangement according to the invention is characterized by significantly improved resistance, particularly to vibration loads. Undesirable cracking or even tearing in the area of the connecting lug and in the grid itself can be avoided, even when used in commercial vehicles. The inventive structure of the grid arrangement significantly reduces mechanical stress peaks, especially in certain critical areas of the grid. At the same time, the amount of lead material used can be reduced.
[0053] The invention further relates to an accumulator, in particular a truck starter battery, with a plurality of plate-shaped battery electrodes assembled into one or more electrode plate blocks, wherein one, several or all battery electrodes have a grid arrangement of the type described above according to the invention.
[0054] The invention is explained in more detail below with reference to the accompanying drawings and exemplary embodiments.
[0055] Shown: MEISSNER BOLTE M / JCI-538-PC
[0056] 9
[0057] FIG. 1 schematically and in an isometric exploded view an exemplary embodiment of the accumulator according to the invention;
[0058] FIG. 2 schematically and in a top view an exemplary embodiment of the grid arrangement according to the invention; and
[0059] FIG. 3 schematically and in an isometric view shows an area of the grid arrangement according to FIG. 2.
[0060] The accompanying drawings use the same reference symbols for corresponding elements.
[0061] The basic structure of an accumulator 100 according to the invention is first explained by way of example using the illustration in FIG. 1.
[0062] The 100-unit accumulator can be designed, in particular, as a lead-acid battery with a liquid electrolyte, e.g., in the form of sulfuric acid. The accumulator
[0063] The accumulator 100 has a housing 101 in which one or more disk blocks 102 are arranged. The accumulator 100 has a number of disk blocks 102 determined according to its number of rows.
[0064] The plate blocks 102 are each arranged in individual receiving chambers of the housing 101, separated from one another by partition walls. Within the housing 101, the plate blocks 102 are connected to one another in series by internal connecting elements (not shown in FIG. 1). The positive plates of one end plate block 102 and the negative plates of the other end plate block 102 are connected to their respective external terminals 103, 104, which are located in a cover part 105 of the accumulator housing.
[0065] The terminals 101 are electrically connected. The electrical energy from the accumulator 100 is supplied to electrical consumers via the terminals 103 and 104.
[0066] The plate blocks 102 each have alternating positive and negative electrode plates. The negative electrode plates are shown as negative plate set 106, the positive electrode plates as positive plate set 107. MEISSNER BOLTE M / JCI-538-PC
[0067] 10
[0068] FIG. 1 shows, by way of example, individual electrode plates 108, 110, namely a negative electrode plate 108 which has a negative planar lead grid, and a positive electrode plate 110 which has a positive planar lead grid.
[0069] The positive electrode plate 110 and the negative electrode plate 108 shown in FIG. 1 each already have a paste of active material. This paste covers the individual grid bars / struts and recesses. The positive and / or the negative lead grid has a plurality of grid struts 5, 6 and a plurality of window-like recesses (grid windows 8) formed between the grid struts 5, 6. The positive and / or the negative lead grid is produced, in particular, by casting.
[0070] The positive electrode plate 110 is additionally separated from the negative electrode plate 108 by a separator material 112. In particular, the separator material 112 can be formed into a pocket shape which receives the positive electrode plate 110 and separates it from adjacent electrode plates 108, 110.
[0071] The positive electrode plates 110 each have connecting lugs 113, via which the electrode plates 110 in the positive plate set 107 are connected to each other in a parallel circuit. The negative electrode plates 108 each have connecting lugs 113, via which the electrode plates 108 in the negative plate set 106 are connected to each other in a parallel circuit. The connection can be made by a connector 114, visible in FIG. 1, which is soldered or welded onto the connecting lugs 113.
[0072] The accumulator 100 according to FIG. 1 can in particular have one or more electrode plates 108, 110 or grid arrangements according to the invention, e.g. in the form of the positive electrode plates 110.
[0073] FIG. 2 shows an example of a grid arrangement serving as a positive lead grid in a top view.
[0074] It can be seen that the grid arrangement 109, 111 has a frame and a grid arranged inside the frame. MEISSNER BOLTE M / JCI-538-PC
[0075] 11
[0076] For better handling and mechanical stabilization as well as for improving the electrical properties, the frame of the grid arrangement 109, 111 has an upper frame element 1, on the side of which facing away from the thunderstorm a connecting tab 113 of the battery electrode is arranged.
[0077] Furthermore, the frame of the grid arrangement 109, 111 has a lower frame element 2 opposite the upper frame element 1 and two lateral frame elements 3, 4 opposite each other, connecting the upper and lower frame elements 1, 2 respectively.
[0078] As shown in FIG. 2, the connecting tab 113 is connected to the upper frame element 1 at or in a first end region of the upper frame element 1. A first lateral frame element 3 of the two lateral frame elements 3, 4 connects the first end region of the upper frame element 1 to the lower frame element 2, while the second lateral frame element 4 of the two lateral frame elements 3, 4 connects a second end region of the upper frame element 1, opposite the first end region of the upper frame element 1, to the lower frame element 2.
[0079] The grid of the grid arrangement 109, 111 according to the invention has a plurality of vertical grid struts 5. Each vertical grid strut 5 has a first end region which is connected to the upper frame element 1 of the frame, and at least one second end region which is at least partially or partially opposite the first end region and which is connected to the lower frame element 2 or to the second lateral frame element 4.
[0080] As can be seen in detail in FIG. 2, the grid of this grid arrangement 109, 111 comprises several vertical grid struts 5, which have a first end region and two second end regions that are at least partially or partially opposite the first end region, wherein the two second end regions are connected to the first end region via a transition region 7. The transition region 7 is formed in particular by a Y-shaped grid strut region of the vertical grid strut 5.
[0081] Furthermore, as can be seen in FIG. 2, the transition regions 7 are located in the upper right quadrant of the grid. MEISSNER BOLTE M / JCI-538-PC
[0082] 12
[0083] In the grid design of the grid arrangement 109, 111 shown in FIG. 2, it is provided that several vertical grid struts 5 have a first end region and two second end regions that are at least partially or partially opposite the first end region and are connected to the first end region via a Y-shaped grid strut region, wherein a vertical grid strut 5 is arranged between two adjacent vertical grid struts 5 of these several vertical grid struts 5, each of which has two second end regions, and which has only one first end region and only one second end region.
[0084] Each vertical grid strut 5 of the grid of the grid arrangement 109, 111 shown in FIG. 2 has a positive slope or runs parallel to a longitudinal direction of the first lateral frame element 3. Specifically, in the grid arrangement 109, 111 according to FIG. 2, only one vertical grid strut 5 immediately adjacent to the first lateral frame element 3 runs parallel to the longitudinal direction of the first lateral frame element 3, while the other vertical grid struts 5 have a positive slope. The positive slope of the vertical grid struts 5 decreases with increasing distance from the first lateral frame element 5.
[0085] The grid of the grid arrangement 109, 111 shown in FIG. 2 further comprises a plurality of horizontal grid struts 6.
[0086] Each horizontal grid strut 6 has a first end region which is connected to a first grid strut of the vertical grid struts 5 or to the second lateral frame element 4 of the frame.
[0087] Furthermore, each horizontal grid strut 6 has a second end region that is at least partially or partially opposite the first end region and is connected to a second grid strut of the vertical grid struts 5 or to the first lateral frame element 3. The first grid strut of the vertical grid struts 5 is arranged closer to the second lateral frame element 4 than the second grid strut of the vertical grid struts 5.
[0088] The grid arrangement 109, 111 has a plurality of grid windows 8, which are formed by two opposing horizontal grid struts 6 and two opposing sections of vertical grid struts 5. MEISSNER BOLTE M / JCI-538-PC
[0089] 13
[0090] It is particularly provided that in at least 50%, in particular in at least 60%, in particular in at least 75% and preferably in at least 85% of these grid windows 8 the horizontal grid struts 6 have a length of a maximum of 50%, in particular of a maximum of 40%, and preferably of a maximum of 35% of the length of the section of the vertical grid struts 5.
[0091] In the grid design of the grid arrangement 109, 111 according to the invention, which is shown schematically in FIG. 2 with reference to an exemplary embodiment, it is particularly provided that the horizontal grid struts 6 are made relatively short in order to reduce vibration resistance and the risk of failure due to mechanical and electrical stress peaks. In this context, it is particularly provided that at least 85%, in particular at least 90% and preferably at least 95% of the horizontal grid struts 6 have a length of < 8 mm, in particular < 7 mm, and preferably < 6 mm.
[0092] In the embodiment of the grid arrangement 109, 111 shown in FIG. 2, it is even provided that at least 85%, in particular at least 90%, and preferably at least 95% of the horizontal grid struts 6 have a length of 6.0 mm to 4.0 mm.
[0093] The lattice windows 8, formed by the vertical lattice struts 5 and the horizontal lattice struts 6, enclose a relatively small area.
[0094] In particular, according to the invention, it is provided that preferably each grid window 8 or at least a majority of the grid windows 8 of the grid of the grid arrangement 109, 111 has an area of 72 mm² 2 up to 78 mm 2 , preferably an area of 72 mm² 2 up to 75 mm 2 and even more preferably an area of 72 mm 2 smaller than 75 mm 2 surrounds.
[0095] In particular, it is provided that the deviation of an average grille window size determined over at least two adjacent grille windows 8 in the grille windows 8 shall not exceed 10%.
[0096] As can be seen in FIG. 3, the grid arrangement 109, 111 has a first, in particular middle, thickness in the area of the connecting lug 113, MEISSNER BOLTE M / JCI-538-PC
[0097] 14 which is approximately 1.2 mm. In the area of the frame, the grid arrangement 109, 111 has a particularly medium thickness of approximately 1.03 mm.
[0098] The vertical grid struts 5 have, at least in some areas, a first, especially average, thickness of approximately 1.03 mm and a second, especially average, thickness of approximately 0.93 mm. On the other hand, the horizontal grid struts 6 have, in some areas, an average thickness of 0.7 mm or 0.8 mm.
[0099] It can also be seen from the illustration in FIG. 3 that the grille windows 8 arranged below the connecting flag 113 of a first row of grille windows, viewed from the upper frame element 1, have rounded corners whose radius is greater than > 10%, in particular > 15%, in particular > 25%, of the height or width of the grille window. The invention is not limited to the embodiments shown in the drawings, but results from a combination of all the features disclosed herein.
[0100] MEISSNER BOLTE M / JCI-538-PC
[0101] 15
[0102] Reference symbol
[0103] 1 upper frame element
[0104] 2 lower frame element
[0105] 3 first lateral frame element
[0106] 4 second side frame element
[0107] 5 vertical lattice struts
[0108] 6 horizontal lattice struts
[0109] 7 Transition area / Y-shaped grid strut area
[0110] 8 barred windows
[0111] 100 accumulator
[0112] 101 cases
[0113] 102-plate block
[0114] 103 Connection pole
[0115] 104 connection pole
[0116] 105 Lid part
[0117] 106 negative plate set
[0118] 107 positive plate set
[0119] 108 negative electrode plate
[0120] 109 negative planar lead grid / grid arrangement
[0121] 110 positive electrode plate
[0122] 111 positive planar lead grid / grid arrangement
[0123] 112 Separator material
[0124] 113 Connection flag
[0125] 114 connectors
Claims
October 28, 2025 Clarios Germany GmbH & Co. KG M / JCI-538-PC CPS Technology Holdings LLC TR / Ij Grid arrangement for a plate-shaped battery electrode of an electrochemical accumulator Patent claims 1. Grid arrangement (109, 111) for a plate-shaped battery electrode of an electrochemical accumulator (100), wherein the grid arrangement (109, 111) comprises a frame and a grid arranged inside the frame on the frame, wherein the frame comprises an upper frame element (1) on the side of which facing away from the grid a connecting tab (113) of the battery electrode is arranged, a lower frame element (2) opposite the upper frame element (1), and two opposing lateral frame elements (3, 4) connecting the upper and lower frame elements (1, 2), respectively, wherein the connecting tab (113) is connected to the upper frame element (1) at or in a first end region of the upper frame element (1), and wherein a first lateral frame element (3) of the two lateral frame elements (3, 4)4) connects the first end region of the upper frame element (1) to the lower frame element (2) and the second lateral frame element (4) connects a second end region of the upper frame element (1) opposite the first end region of the upper frame element (1) to the lower frame element (2), characterized in that the grid has a plurality of vertical grid struts (5), each vertical grid strut (5) having a first end region connected to the upper frame element (1) and having at least one second end region at least partially or partially opposite the first end region, which is connected to the lower frame element (2) or to the second lateral frame element (4). MEISSNER BOLTE M / JCI-538-PC 2 2. Grid arrangement (109, 111) according to claim 1, wherein at least one vertical grid strut (5) and preferably several vertical grid struts (5) have a first end region and at least two second end regions at least partially or partially opposite the first end region, wherein the at least two second end regions are connected to the first end region via a transition region (7).
3. Grid arrangement (109, 111) according to claim 2, wherein the transition region (7) is formed by a Y-shaped grid strut region.
4. Grid arrangement (109, 111) according to claim 2 or 3, wherein, in a top view of the grid arrangement (109, 111) in which the first end region of the upper frame element (1) is located on the upper right and the second end region of the upper frame element (1) is located on the upper left, the transition region (7) and preferably all transition regions (7) are located in the upper right quadrant of the grid.
5. Grid arrangement (109, 111) according to one of claims 1 to 4, wherein several vertical grid struts (5) have a first end region and two second end regions that are at least partially or partially opposite the first end region and are connected to the first end region via a preferably Y-shaped grid strut region, wherein at least one vertical grid strut (5) and preferably exactly one vertical grid strut (5) is arranged between two adjacent vertical grid struts (5) of the several vertical grid struts (5), each of which has two second end regions.
6. Grid arrangement (109, 111) according to one of claims 1 to 5, wherein in a top view of the grid arrangement (109, 111) the first end region of the upper frame element (1) is located on the upper right side and the second end region of the upper frame element (1) MEISSNER BOLTE M / JCI-538-PC 3 is located on the upper left side, each vertical grid strut (5) of the grid has a positive slope or runs parallel to a longitudinal extension direction of the first lateral frame element (3).
7. Grid arrangement (109, 111) according to claim 6, wherein only one vertical grid strut (5) immediately adjacent to the first lateral frame element (3) and, if applicable, one vertical grid strut (5) immediately adjacent to this vertical grid strut (5) run parallel to the longitudinal extension direction of the first lateral frame element (3).
8. Grid arrangement (109, 111) according to claim 6 or 7, wherein the particularly positive slope of the vertical grid struts (5) decreases with increasing distance to the first lateral frame element (3).
9. Grid arrangement (109, 111) according to one of claims 1 to 8, wherein the grid has a plurality of horizontal grid struts (6), wherein each horizontal grid strut (6) has a first end region which is connected to a first grid strut of the vertical grid struts (5) or to the second lateral frame element (4), and has a second end region which is at least partially or partially opposite the first end region and which is connected to a second grid strut of the vertical grid struts (5) or to the first lateral frame element (3).
10. Grid arrangement (109, 111) according to claim 9, wherein the first grid strut of the vertical grid struts (5) is arranged closer to the second lateral frame element (4) than the second grid strut of the vertical grid struts (5).
11. Grid arrangement (109, 111) according to claim 9 or 10, wherein the grid arrangement (109, 111) has a plurality of grid windows (8) formed by two opposing horizontal grid struts (6) and two opposing sections of vertical grid struts (5), wherein at least 50%, MEISSNER BOLTE M / JCI-538-PC 4 in particular at least 60%, in particular at least 75% and preferably at least 85% of these grid windows (8) the horizontal grid struts (6) have a length of a maximum of 50%, in particular of a maximum of 40%, and preferably of a maximum of 35% of the length of the section of the vertical grid struts (5).
12. Grid arrangement (109, 111) according to one of claims 9 to 11, wherein at least 85%, in particular at least 90% and preferably at least 95% of the horizontal grid struts (6) have a length of < 8 mm, in particular of < 7 mm, and preferably of < 6 mm.
13. Grid arrangement (109, 111) according to one of claims 9 to 12, wherein at least 85%, in particular at least 90%, and preferably at least 95% of the horizontal grid struts (6) have a length of 6.0 mm to 4.0 mm.
14. Grid arrangement (109, 111) according to one of claims 9 to 13, wherein the grid has a plurality of grid windows (8) formed by the vertical grid struts (5) and the horizontal grid struts (6), wherein preferably each grid window (8) or at least a plurality of the grid windows (8) has an area of 72 mm² 2 up to 78 mm 2 , preferably an area of 72 mm² 2 up to 75 mm 2 and even more preferably an area of 72 mm 2 smaller than 75 mm 2 surrounds.
15. Grid arrangement (109, 111) according to claim 14, wherein a deviation of an average grid window size determined over at least two adjacent grid windows (8) is at most 10% for the grid windows (8) of the grid.
16. Grid arrangement (109, 111) according to one of claims 9 to 15, wherein, in particular, cap-shaped or frustoconical projections are formed on the vertical and / or horizontal grid struts (5, 6), which extend perpendicular to the plane in which the grid of the grid arrangement (109, 111) lies. MEISSNER BOLTE M / JCI-538-PC 5 17. Lattice arrangement (109, 111) according to claim 16, wherein the projections are at least substantially rotationally symmetric.
18. Grid arrangement (109, 111) according to claim 16 or 17, wherein the projections have a height of 0.3 mm to 0.9 mm.
19. Grid arrangement (109, 111) according to one of claims 16 to 18, wherein the projections are formed at least partially in a region of the end regions of the horizontal grid struts (6) or in a region of the end regions of some horizontal grid struts (6).
20. Grid arrangement (109, 111) according to one of claims 9 to 19, wherein the grid arrangement (109, 111) has a first, in particular medium, thickness in the region of the connecting flag (113) and a second, in particular medium, thickness in the region of the frame, wherein the first, in particular medium, thickness in the region of the connecting flag (113) is greater than the second, in particular medium, thickness in the region of the frame; and / or wherein the vertical grid struts (5) have at least in certain regions a first, in particular medium, thickness and at least in certain regions a second, in particular medium, thickness different from the first, in particular medium, thickness of the vertical grid struts (5); and / or wherein the horizontal grid struts (6) have at least in certain regions a first, in particular medium, thickness and at least in certain regions a second, in particular medium, thickness different from the first, in particular medium, thickness of the horizontal grid struts (6).
21. Grid arrangement (109, 111) according to claim 20, wherein the first, in particular middle, thickness of the vertical grid struts (5) corresponds to the in particular middle thickness of the frame; and / or wherein a particularly middle thickness of the horizontal grid struts (6) is smaller than a particularly middle thickness of the vertical grid struts (5). MEISSNER BOLTE M / JCI-538-PC 6 22. Grid arrangement (109, 111) according to one of claims 9 to 21, wherein groove- or slot-shaped areas are formed in the vertical grid struts (5), in particular in areas of the vertical grid struts (5) in which the horizontal grid struts (6) terminate.
23. Grid arrangement (109, 111) according to one of claims 9 to 22, wherein, in a top view of the grid of the grid arrangement (109, 111), preferably all vertical grid struts (5) or at least a majority of the vertical grid struts (5) and / or all horizontal grid struts (6) or at least a majority of the horizontal grid struts (6) each have a width that is at least substantially constant when viewed over the longitudinal direction of the respective grid strut.
24. Grid arrangement (109, 111) according to one of claims 9 to 23, wherein the grid of the grid arrangement (109, 111) has a front and a back, wherein on the front of the grid the vertical grid struts (5) and the horizontal grid struts (6) lie in a common plane, and wherein on the back of the grid the vertical grid struts (5) lie in a first plane and the horizontal grid struts (6) lie in a second plane parallel to the first plane.
25. Grid arrangement (109, 111) according to one of claims 1 to 24, wherein at least one grid window (8) arranged below the connecting flag (113) of a first row of grid windows viewed from the upper frame element (1, 2, 3, 4) has at least one rounded corner, the radius of which is greater than > 10%, in particular > 15%, in particular > 25%, of the height or width of the grid window.
26. Grid arrangement (109, 111) according to one of claims 1 to 25, wherein the grid arrangement (109, 111) was manufactured using a metal casting process, in particular a die casting process. MEISSNER BOLTE M / JCI-538-PC 7 27. Accumulator (100), in particular a truck starter battery, comprising a plurality of plate-shaped battery electrodes assembled into one or more electrode plate blocks, wherein one, several or all battery electrodes have a grid arrangement (109, 111) according to one of claims 1 to 26.