Battery mounting system

Abstract

A battery mounting system is provided that protects adjacent batteries from damage in the event of a thermally unstable condition in one battery. [Solution] The present invention relates to a battery mounting system (100) for holding a plurality of battery cells (101, 101-1, 101-2) in an electric vehicle, the battery mounting system comprising: a mounting housing (103) for holding the plurality of battery cells (101, 101-1, 101-2); the plurality of battery cells (101, 101-1, 101-2) accommodated in the mounting housing (103); a plurality of electrical connection elements (111, 111-1); and at least one heat shield element (119, 119-1, 119-2). The plurality of battery cells (101, 101-1, 101-2) are arranged in a plurality of battery cell rows (105, 105-1, 105-2, 105-3) arranged in parallel to one another, and the battery cell rows (105, 105-1, 105-2, 105-3) are arranged in parallel to one another. The battery cells in each battery cell row (105, 105-1, 105-2, 105-3) extend along a longitudinal direction (121), a plurality of electrical connection elements (111, 111-1) conductively connect two adjacent battery cells (101, 101-1, 101-2) along the longitudinal direction (121) in each battery cell row (105, 105-1, 105-2, 105-3) to provide an electrical series connection of each battery cell row (105, 105-1, 105-2, 105-3), and at least one heat shield element (119, 119-1, 119-2) conductively connects two adjacent battery cells (101, 101-1, 101-2) along the longitudinal direction (121) in each battery cell row (105, 105-1, 105-2, 105-3). 101-2) and are configured to provide a thermal barrier between two adjacent battery cells (101, 101-1, 101-2) in each battery cell row (105, 105-1, 105-2, 105-3).

Description

Technical Field

[0001] The present invention relates to a battery mounting system for mounting a plurality of battery cells in an electric vehicle.

Background Art

[0002] A battery mounting system is used in a conventional electric vehicle to hold a plurality of battery cells that supply electrical energy necessary to drive the electric vehicle. Generally, battery cells based on lithium ion technology are used, but these can change to a thermally unstable state due to certain external influences such as overheating, overcharging, and / or mechanical damage.

[0003] If one of the plurality of battery cells changes to a thermally unstable state, a large amount of high-temperature gas is released into the environment through the pressure relief valve of the battery cell under high pressure within a short period of time. Due to the usually high density of the packing (loading) of the battery cells in the battery mounting system, the high-temperature gas released by the thermally unstable battery cell can convert adjacent battery cells to a thermally unstable state as well. Under certain circumstances, this can cause a chain reaction that can severely damage and even destroy a large number of battery cells.

Summary of the Invention

Problems to be Solved by the Invention

[0004] An object of the present invention is to provide a battery mounting system for an electric vehicle, which protects adjacent batteries of the battery mounting system from damage when a thermally unstable state of one battery occurs.

Means for Solving the Problems

[0005] The present invention is based on the understanding that the heat insulating wall of the battery mounting system ensures that the high-temperature gas released by the thermally unstable battery cell cannot thermally stimulate adjacent battery cells.

[0006] In this case, the battery cells held within the battery mounting system are arranged in the form of multiple rows of battery cells that are parallel to each other, and the battery cells in each row are electrically connected in series by multiple electrical connection elements.

[0007] The heat shield wall is provided by at least one heat shield element, which is positioned between two adjacent battery cells within each battery cell row, providing a thermal barrier between these two adjacent battery cells.

[0008] According to a first aspect of the present invention, the above object is solved by a battery mounting system for holding a plurality of battery cells in an electric vehicle, the battery mounting system comprising a mounting housing for holding a plurality of battery cells, the plurality of battery cells held within the mounting housing, a plurality of electrical connection elements, and at least one heat shielding element, wherein the plurality of battery cells are arranged in a plurality of battery cell rows arranged parallel to each other, the battery cells in the battery cell rows extend along the longitudinal direction, each of the plurality of electrical connection elements electrically connects two battery cells adjacent to each other along the longitudinal direction within each battery cell row to provide an electrical series connection of each battery cell row, and the at least one heat shielding element is positioned between two battery cells adjacent to each other in the longitudinal direction within each battery cell row to provide a heat shielding wall between two battery cells adjacent to each other within each battery cell row.

[0009] This provides the technical advantage that at least one heat shielding element provides an effective heat shield between two adjacent battery cells within each battery cell row, thereby preventing the other of two adjacent battery cells from becoming thermally unstable if one of them becomes thermally unstable.

[0010] The above-mentioned heat shield element is formed using a material having high thermal resistance and high resistance to pressure. In particular, the material of the heat shield element includes at least one metal, especially steel, iron, and / or aluminum. In particular, the heat shield element is formed as a heat shield plate. In particular, this heat shield plate has at least one convex portion and / or at least one recess.

[0011] In particular, the above-mentioned at least one heat shielding element may include a plurality of heat shielding elements, one of which is positioned between each of two adjacent battery cells along the longitudinal direction within each battery cell row, providing a heat shielding wall between two adjacent battery cells within each battery cell row. Thus, the plurality of heat shielding elements can ensure multiple effective heat shielding walls between multiple battery cells adjacent in the longitudinal direction within one battery cell row, or within multiple battery cell rows arranged parallel to each other.

[0012] In particular, the at least one heat shielding element described above can extend beyond each battery cell row and is positioned between adjacent battery cells along the longitudinal direction within a plurality of battery cell rows arranged parallel to each other.

[0013] In particular, the at least one heat shield element may extend in the form of at least multiple parts along a transverse direction that extends perpendicular to the longitudinal direction within the mounting housing, and in particular may extend throughout the entire structure, and / or the at least one heat shield element may extend in the form of at least multiple parts along a vertical direction that extends perpendicular to both the longitudinal and transverse directions within the mounting housing, and in particular may extend throughout the entire structure.

[0014] Therefore, the above-mentioned at least one heat shielding element is particularly, housing It provides an effective heat shield that extends across the entire interior surface.

[0015] In particular, at least one heat shielding element positioned between two adjacent battery cells along the longitudinal direction within each battery cell row has at least one opening to allow electrical connection between the two adjacent battery cells along the longitudinal direction within each battery cell row by their respective electrical connection elements.

[0016] In the context of this disclosure, “adjacent” battery cells along the longitudinal direction refer to adjacent battery cells within a single row of battery cells.

[0017] Each of the battery cells according to the present invention has poles of opposite polarity, particularly a positive and a negative pole. In particular, one pole, particularly the positive or negative pole of one of two longitudinally adjacent battery cells in each battery cell row, is electrically connected by an electrical connection element to the other pole of opposite polarity, particularly the negative or positive pole of the other longitudinally adjacent battery cell.

[0018] Multiple electrical connection elements that electrically connect adjacent battery cells in the longitudinal direction within each battery cell row enable effective electrical series connection within each battery cell row. Multiple battery cell rows, each electrically connected in series and arranged parallel to each other within the mounting housing, enable effective energy density for the entire battery mounting system.

[0019] In the context of this disclosure, “arranged” battery cells refer to battery cells in different rows of battery cells that are arranged parallel to each other.

[0020] In particular, rows of battery cells arranged parallel to each other within the housing are spaced apart from each other, or rows of battery cells arranged parallel to each other within the housing are adjacent to each other.

[0021] In particular, battery cells belonging to different rows arranged parallel to each other and adjacent to each other are arranged without an offset along the longitudinal direction. In particular, battery cells belonging to different rows arranged parallel to each other and adjacent to each other are arranged with an offset along the longitudinal direction.

[0022] In particular, the battery cell according to the invention includes a round cell.

[0023] Thus, at least one heat insulation element according to the invention effectively prevents the propagation of thermally unstable states of a plurality of battery cells in a battery mounting system, and can thus also be used in battery cells based on lithium-ion technology which have a particularly high energy density.

[0024] According to at least one heat insulation element according to the invention, a plurality of rows of battery cells arranged parallel to one another further ensures that the battery cells can be packed (stuffed) particularly densely in the battery mounting system without the risk of thermally unstable states spreading to adjacent battery cells. In this way, a battery mounting system with optimized installation space can be provided.

[0025] In one preferred example, the at least one heat insulation element is arranged between each electrical connection element in the plurality of electrical connection elements and one of two adjacent battery cells in each row of battery cells.

[0026] This realizes a technical advantage of ensuring particularly advantageous production of the battery mounting system.

[0027] In particular, each electrical connection element is connected in a firmly bonded manner to one of two adjacent battery cells in each row of battery cells, and each electrical connection element is connected to the other of two adjacent battery cells in each row of battery cells in a manner with low play and / or a manner with high play. In particular, the at least one heat insulation element is arranged between each electrical connection element and the battery cell which is firmly bonded in each row of battery cells.

[0028] This enables the technical advantage of ensuring an advantageous assembly sequence in which the heat insulation element can first be advantageously arranged, and then the connection element can be connected in a low-play mode and / or in a high-play mode to the other of two adjacent battery cells, and then the connection element can be connected in a mode of being firmly coupled to one of two adjacent battery cells.

[0029] In one preferred example, the heat insulation element arranged between two adjacent battery cells along the longitudinal direction within each battery cell row extends along a transverse direction orthogonal to the longitudinal direction.

[0030] This realizes the advantage of ensuring an arrangement in which at least one heat insulation element is particularly effectively arranged within the mounting housing.

[0031] In one preferred example, the heat insulation element has at least one opening, and one of two battery cells arranged adjacent to each other within each battery cell row, particularly one pole of this battery cell, is at least partially accommodated in the opening, or one of the plurality of electrical connection elements is at least partially arranged in the opening to provide a conductive connection between two adjacent battery cells within each battery cell row.

[0032] This realizes the advantage of ensuring that there is still a conductive connection between two adjacent battery cells through the opening of at least one heat insulation element.

[0033] One of two battery cells arranged adjacent to each other, particularly one pole of this battery cell, or any of the above electrical connection elements can be arranged in the opening.

[0034] Particularly, the opening edge defining the opening can ensure that there is no gap through which high-temperature gas can pass between the heat insulation element and the battery cell adjacent to the battery cell at least partially accommodated in the opening.

[0035] In particular, the opening edge defining the opening is adjacent to the electrical connection elements, which are arranged in the form of at least multiple parts within the opening, and can ensure that there is no gap between the heat shielding element and the electrical connection elements through which high-temperature gas can pass.

[0036] In one embodiment, the above-mentioned heat shielding element may include a heat shielding plate.

[0037] This realizes the technical advantage of being able to provide an effective heat shield. In particular, the heat shield plate may have at least one convex portion and / or at least one concave portion.

[0038] In one preferred example, the at least one heat shield element is positioned between each of two adjacent battery cells along the longitudinal direction in a plurality of rows of battery cells arranged parallel to each other, and in particular, the at least one heat shield element is positioned between each of two adjacent battery cells along the longitudinal direction in all of the rows of battery cells arranged parallel to each other.

[0039] This realizes the technical advantage that at least one of the heat shielding elements simultaneously extends beyond a single row of battery cells, and that at least one of the heat shielding elements extends into a corresponding row of battery cells adjacent to this row of battery cells. In particular, the at least one heat shielding element extends along a transverse direction perpendicular to the longitudinal direction, and / or along a vertical direction perpendicular to both the longitudinal and transverse directions.

[0040] Therefore, the at least one heat shield element can be placed between each of a plurality of battery cells arranged adjacent to one another along the longitudinal direction within each battery cell row, thereby enabling an effective heat shield wall for multiple battery cell rows with a single heat shield element.

[0041] In one preferred example, battery cells arranged parallel to each other have different polarities.

[0042] This provides a technical advantage by enabling flexible adaptation of the battery mounting system described above.

[0043] When rows of battery cells arranged parallel to each other have the same polarity, the poles of battery cells belonging to different rows and arranged adjacent to each other are the same polarity; that is, within corresponding rows of battery cells with the same polarity, the arrangement of positive and negative poles is symmetrical.

[0044] On the other hand, if rows of battery cells arranged parallel to each other have different polarities, that is, within corresponding rows of battery cells with different polarities, then in adjacent battery cells arranged in different rows of battery cells, the negative terminal of one battery cell may be located next to the positive terminal of the other battery cell, and vice versa.

[0045] In particular, rows of battery cells arranged parallel to each other have the same polarity.

[0046] In particular, in all rows of battery cells arranged parallel to each other, two adjacent rows of battery cells have different polarities.

[0047] In particular, at least some of the battery cell rows arranged parallel to each other have the same polarity, and in at least some of the battery cell rows arranged parallel to each other, two adjacent battery cell rows have different polarities in either case.

[0048] In one preferred example, two battery cells belonging to different battery cell rows and positioned adjacent to each other are arranged without offset from each other, and / or two battery cells belonging to different battery cell rows and positioned adjacent to each other are arranged with an offset from each other, the offset being particularly along the longitudinal direction of the battery cell row.

[0049] This provides a technical advantage in that it allows for flexible adaptation of the battery mounting system to the contacts of the battery mounting system located at the ends of each battery cell row, depending on whether the battery cells belonging to different battery cell rows and positioned adjacent to each other are offset from each other or not.

[0050] In one preferred example, two battery cells belonging to different battery cell rows and positioned adjacent to each other are offset from each other, and the battery mounting system has at least one first heat shield and at least one second heat shield, and these heat shields are positioned offset from each other, particularly by the offset amount, between each of two battery cells adjacent to each other along the longitudinal direction within each battery cell row.

[0051] This realizes a technical advantage: when two battery cells belonging to different battery cell rows and positioned next to each other are offset from each other, two different heat shielding elements are required to ensure that effective heat shielding can be provided between each battery cell adjacent to the longitudinal direction within each battery cell row, despite the longitudinal offset.

[0052] In one preferred example, each of the first and second heat shields has at least one first opening, within which one pole, particularly the positive pole, of two battery cells adjacent longitudinally in each battery cell row is housed in at least multiple portions, and / or each of the first and second heat shields has at least one second opening, within which one of two battery cells adjacent longitudinally in each battery cell row is housed in at least multiple portions.

[0053] This realizes the technical advantage that the two different openings of the first and second heat shielding elements are shaped to accommodate the poles of the battery cells, or to accommodate the battery cells themselves, thereby ensuring an effective heat shield between adjacent battery cells, even if there is an offset between two adjacent rows of battery cells.

[0054] In particular, the first opening is designed to accommodate an electrical connection element connected to a pole, especially a positive pole, in the form of at least multiple parts.

[0055] In particular, the first opening for housing the pole, especially the positive pole, or the electrical connection element has a smaller diameter than the second opening for housing the battery cell.

[0056] In one preferred example, each of the plurality of electrical connection elements has a contact region which is electrically connected to a pole, particularly the positive pole, of one of two battery cells adjacent to each other along the longitudinal direction, and electrically connected to the other pole, particularly the negative pole, of the other battery cell adjacent to each other along the longitudinal direction.

[0057] This provides a technical advantage: the contact area enables effective conductive connection between different poles of two battery cells adjacent to each other along the longitudinal direction.

[0058] In one preferred example, the contact area is firmly bonded to at least one electrode, particularly the positive electrode, particularly by welding, soldering, and / or bonding, and in particular, the at least one heat shield element is positioned between each of the plurality of electrical connection elements and the electrode.

[0059] This provides a technical advantage in that the contact area allows for particularly stable mounting of the electrical connection element to at least one pole of at least one of the two battery cells.

[0060] In particular, the contact region is firmly coupled to only one electrode, specifically the positive electrode, of two adjacent battery cells along the longitudinal direction. Alternatively, the contact region is firmly coupled to one electrode, specifically the positive and negative electrodes, of both adjacent battery cells along the longitudinal direction.

[0061] In one preferred example, a plurality of mounting elements, particularly mounting teeth, are arranged on the contact area, and these mounting elements accommodate at least one cell end of two adjacent battery cells along the longitudinal direction.

[0062] This enables the above-mentioned mounting elements to effectively, and especially, securely mount the ends of each cell, thereby realizing the technical advantage that, in order to ensure effective fastening, the corresponding battery cells only need to be inserted between the mounting elements.

[0063] In one preferred example, the battery mounting system comprises a plurality of thermal shielding elements arranged within the mounting housing at intervals from one another, particularly along the longitudinal direction of the battery cell rows, each of which is positioned between two different battery cells adjacent to each other along the longitudinal direction within each battery cell row, thereby ensuring thermal shielding between a plurality of adjacent battery cells along the longitudinal direction within each battery cell row.

[0064] This provides a technical advantage in that the multiple heat shielding elements described above ensure that an effective heat shielding wall is provided to different battery cells adjacent to each other along the longitudinal direction within each row of battery cells.

[0065] The distance between the correspondingly spaced heat shielding elements corresponds, in particular, to the length of a single battery cell.

[0066] In one preferred example, the at least one heat shield element is connected to at least one of two battery cells adjacent to each other along the longitudinal direction within each battery cell row in a manner that is firmly coupled, in a manner that is less secure, and / or in a manner that is more secure.

[0067] This provides the technical advantage of enabling the effective attachment of the at least one heat shielding element to at least one of the two battery cells, and especially to both battery cells.

[0068] In particular, the at least one heat shielding element is connected to at least one of the plurality of electrical connection elements in a manner in which it is firmly coupled, in a manner in which it is not very reliable, and / or in a manner in which it is not very reliable.

[0069] In one preferred example, each battery cell has at least one degassing valve, which is designed to expel gas from the battery cell in the event of excess pressure (overpressure, problem pressure) within the battery cell, and this at least one degassing valve is located in the spatial vicinity of the poles of the battery cell, particularly the positive or negative pole.

[0070] This offers a technical advantage: when a battery cell is in a thermally unstable state, the gas can be favorably released into the environment surrounding the battery cell through the degassing valve, thereby preventing the battery cell from burning.

[0071] In particular, the degassing valve is positioned in spatial proximity to the poles of each battery cell, especially the positive or negative pole, thereby positioning the degassing valve in spatial proximity to at least one heat shield element, which is positioned between two adjacent battery cells along the longitudinal direction, or between corresponding poles of these adjacent battery cells, thereby allowing the gas released through the degassing valve to be effectively released by the at least one heat shield element.

[0072] The present invention will be described in more detail below with reference to examples of embodiments and drawings. [Brief explanation of the drawing]

[0073] [Figure 1] This figure shows a schematic representation of a battery mounting system using an example. [Figure 2] This figure shows a schematic representation of a battery mounting system according to one embodiment, in a horizontal cross-sectional view. [Figure 3] This figure shows a schematic representation of the battery mounting system according to the above embodiment in a vertical cross-sectional view. [Figure 4] This figure shows a schematic representation of the connection area between two battery cells in the battery mounting system according to the above embodiment. [Figure 5] This figure shows a schematic representation of the battery mounting system according to the above embodiment in perspective view. [Figure 6] This figure shows a schematic representation of the battery mounting system according to the above embodiment in another perspective view. [Modes for carrying out the invention]

[0074] The following detailed description will refer to the attached drawings, which are part of this specification and illustrate specific embodiments that can carry out the present invention. It will be apparent that other embodiments can be used and that structural or logical modifications can be made without departing from the concept of the present invention. Therefore, the following detailed description should not be understood in an restrictive sense. Furthermore, it will be apparent that the features of the various embodiments described herein can be combined with each other unless otherwise specifically stated.

[0075] Aspects and embodiments of the present invention will be described with reference to the drawings, where the same reference numerals generally refer to the same elements. In the following description, numerous specific details are explicitly stated for illustrative purposes in order to provide a thorough understanding of the aspects of the present invention.

[0076] Figure 1 shows a schematic representation of a battery mounting system using a comparative example.

[0077] The battery mounting system 100, simply schematicly shown in Figure 1, enables the mounting of multiple battery cells 101 within an electric vehicle. The battery mounting system 100 has a mounting housing 103, which in Figure 1 is only shown for mounting multiple battery cells.

[0078] Conventional electric vehicles require a large number of battery cells 101 to supply sufficient electrical energy to drive the vehicle. Typically, lithium-ion battery cells 101 are used for this purpose, but these battery cells can become thermally unstable under certain operating conditions.

[0079] For example, if the battery cell 101 is overcharged, overheated, and / or mechanically damaged, an internal short circuit may occur in the battery cell. Such an internal short circuit can release a large amount of thermal energy into the battery cell 101. This can significantly increase the internal pressure of the battery cell 101.

[0080] In this case, as schematically shown by the arrow symbols in Figure 1, a pressure relief valve that can be placed inside the battery cell 101 can be opened, releasing a large amount of hot gas to the immediate vicinity of the battery cell 101. Because the battery cells 101 are often packed (crammed) very densely within the commonly used mounting housing 103, the released hot gas can thermally stimulate other adjacent battery cells 101, which can cause those other adjacent battery cells 101 to also become thermally unstable under certain conditions.

[0081] Under certain environmental conditions, this can cause certain reactions to occur to such an extent that a large number of battery cells 101 may become thermally unstable (heat transfer). As a result, the entire battery unit of the electric vehicle may be severely damaged or even destroyed.

[0082] For this reason, starting with conventional battery configurations, the task is to ensure effective heat shielding between adjacent battery cells 101 to prevent damage to a single battery cell 101, and consequently, to prevent adjacent battery cells 101 from becoming thermally unstable when thermal energy is released from that single battery cell 101.

[0083] Figure 2 shows a schematic representation of a battery mounting system according to one embodiment in a horizontal cross-sectional view.

[0084] The battery mounting system 100 has a mounting housing 103, which is only schematically shown in Figure 2 to hold a plurality of battery cells 101.

[0085] As can be seen in Figure 2, the battery cells 101 are arranged within the mounting housing 103 in multiple rows 105 of battery cells that are arranged parallel to each other.

[0086] Even if the battery cell row 105 shown in Figure 2 is arranged within a single horizontal battery cell surface 107-1, the mounting housing 103 comprises, in particular, a plurality of horizontal battery cell surfaces 107-1 arranged vertically, and the battery cell row 105, which is arranged parallel to each other, is arranged within each of the plurality of horizontal battery cell surfaces 107-1, as shown in Figure 2.

[0087] For a vertical cross-sectional view of the corresponding three-dimensional battery mounting system 100, please refer to Figure 3.

[0088] As can be seen from Figure 2, the battery cells 101 in each battery cell row 105, 105-1, 105-2, and 105-3 are arranged in the form of a series electrical circuit. This means that two adjacent battery cells 101 in each battery cell row 105, 105-1, 105-2, and 105-3 are electrically connected to each other along the longitudinal direction 121.

[0089] Figure 2 shows, as an example, a first battery cell 101-1 and a second battery cell 101-2 adjacent to the first battery cell 101-1 along the longitudinal direction 121 within each battery cell row 105-1.

[0090] For example, the electrode 109 of the first battery cell 101-1, particularly the negative electrode 109-1, is electrically connected to the electrode 109 of the second battery cell 101-2, particularly the positive electrode 109-2.

[0091] Although not shown in Figure 2, instead, the electrodes 109 of the first battery cell 101-1, particularly the positive electrode 109-2, can be electrically connected to the electrode 109 of the second battery cell 101-2, particularly the negative electrode 109-1.

[0092] To enable effective conductive connections between two adjacent battery cells 101, 101-1, and 101-2 within each battery cell row 105, 105-1, 105-2, and 105-3, the battery mounting system 100 is equipped with multiple electrical connection elements 111. Each of the multiple electrical connection elements 111 electrically connects two adjacent battery cells 101, 101-1, and 101-2 along the longitudinal direction 121 within each battery cell row 105, 105-1, 105-2, and 105-3.

[0093] In Figure 2, the first electrical connection element 111 is highlighted, which electrically connects the first battery cell 101-1 to the second battery cell 101-2, which is adjacent to the first battery cell 101-1 along the longitudinal direction within the first battery cell row 105-1.

[0094] Figure 2 only provides a schematic representation of this, but each electrical connection element 111 has a contact region 113, which is electrically connected to the pole 109, particularly the positive pole 109-2, of one of two adjacent battery cells 101, 101-1, 101-2, and is electrically connected to the pole of the opposite polarity, particularly the negative pole, of the other of the two adjacent battery cells 101, 101-1, 101-2.

[0095] In the example selected in Figure 2, the contact region 113 of the first electrical connection element 111 is simply shown schematicly, and the contact region 113 is electrically connected to the negative electrode 109-1 of the first battery cell 101-1 and the positive electrode 109-2 of the second battery cell 101-2.

[0096] Figure 2 shows mounting elements 115, particularly mounting teeth, arranged in the contact region 113, with mounting elements 115 surrounding at least one cell end 117 of the two battery cells 101, 101-1, and 101-2.

[0097] In the representation selected in Figure 2, the mounting element 115 surrounds the cell end 117 of the first battery cell 101-1, ensuring effective mounting of the first battery cell 101-1. Although not shown in Figure 2, the contact area 113 of the electrical connection element 111 is firmly coupled, and specifically welded, to the pole 109 of the second battery cell 101-2, particularly the positive pole 109-2.

[0098] Therefore, the electrical connection elements 111, 111-1 positioned between each of two adjacent battery cells 101, 101-1, 101-2 within each battery cell row 105, 105-1, 105-2, 105-3 along the longitudinal direction 121 ensure effective conductive connections between all adjacent battery cells 101, 101-1, 101-2 within each battery cell row 105, 105-1, 105-2, 105-3.

[0099] Figure 2 shows that battery cell rows 105, 105-1, 105-2, and 105-3, which are arranged parallel to each other, have the same polarity, and that the poles 109, 109-1, 109-2, and 109-3 within battery cell row 105, which are arranged parallel to each other, are aligned in the same direction. In particular, two battery cells 101 belonging to different battery cell rows 105 and arranged adjacent to each other are not offset from each other along the longitudinal direction 121.

[0100] As further shown in Figure 2, the battery mounting system 100 comprises at least one heat shielding element 119, in particular a heat shielding plate, the heat shielding element 119 is positioned between two adjacent battery cells 101, 101-1, and 101-2 along the longitudinal direction within each battery cell row 105, 105-1, and 105-2, and is configured to provide a heat shielding wall between adjacent battery cells 101, 101-1, and 101-2 within each battery cell row 105, 105-1, 105-2, and 105-3.

[0101] As simply schematicly shown in Figure 2, the heat shield element 119 ensures physical separation between two adjacent battery cells 101, 101-1, and 101-2 along the longitudinal direction 121 within each battery cell row 105, 105-1, 105-2, and 105-3. This allows the heat shield element 119 to retain hot gases escaping from one battery cell 101, 101-1, or 101-2 in the event of a thermal overload, preventing them from spreading to the other battery cell 101, 101-1, or 101-2. This effectively prevents the adjacent battery cells 101, 101-1, or 101-2 from also becoming thermally unstable.

[0102] In this case, the heat shield element 119 is made of a material particularly resistant to high temperature and pressure in order to withstand the escaping high-temperature gas, and includes steel, iron, and / or aluminum.

[0103] As shown in Figure 2, battery cells 101, 101-1, and 101-2 in battery cell rows 105, 105-1, 105-2, and 105-3 extend along the longitudinal direction, and the heat shield element 119 extends along the transverse direction 123 perpendicular to the longitudinal direction 121.

[0104] Therefore, the heat shield element 119 is not only positioned between each of two adjacent battery cells 101, 101-1, and 101-2 along the longitudinal direction 121 within a single battery cell row 105, 105-1, 105-2, and 105-3, but also, in particular, between each of two adjacent battery cells 101, 101-1, and 101-2 along the longitudinal direction 121 within a plurality of battery cell rows 105, 105-1, 105-2, and 105-3 that are arranged parallel to each other.

[0105] Even though Figure 2 shows only a single horizontal battery cell surface 107-1, the heat shield element 119 extends in at least multiple parts along the transverse direction 123 that extends perpendicular to the longitudinal direction 121 within the mounting housing 103, and in particular extends throughout, and / or the heat shield element 119 extends in at least multiple parts along the vertical direction that is perpendicular to both the longitudinal direction 121 and the transverse direction 123 within the mounting housing 103, and in particular extends throughout, the vertical direction is not shown in Figure 2.

[0106] Therefore, in particular, the heat shielding element 119 can be placed between each of two adjacent battery cells 101, 101-1, 101-2 along the longitudinal direction 121 within all battery cell rows 105, 105-1, 105-2, 105-3 which are arranged parallel to each other.

[0107] The heat shielding element 119 shown in Figure 2 can provide a heat shielding wall between two adjacent battery cells 101, 101-1, and 101-2 located along the longitudinal direction 121 within each battery cell row 105, 105-1, 105-2, and 105-3.

[0108] Although not shown in Figure 2, battery cell rows 105, 105-1, 105-2, and 105-3 comprise a plurality of battery cells 101, 101-1, and 101-2 arranged along the longitudinal direction 121, thereby enabling the battery mounting system 100 to include a plurality of additional heat shielding elements 119, which are not shown in Figure 2, and are spaced apart from each other within the mounting housing 103, particularly along the longitudinal direction 121.

[0109] Each of the additional heat shielding elements 119 is positioned here between two different battery cells 101, 101-1, 101-2 adjacent along the longitudinal direction 121 within each battery cell row 105, 105-1, 105-2, 105-3, thereby effectively separating from each other thermally by the heat shielding wall, especially multiple, especially all, battery cells 101, 101-1, 101-2 that are adjacent along the longitudinal direction 121.

[0110] Since at least one heat shield element 119 is positioned between two adjacent battery cells 101, 101-1, 101-2 along the longitudinal direction 121 within each battery cell row 105, 105-1, 105-2, 105-3, each at least one heat shield element 119 has at least one opening, in particular multiple openings 125, the openings 125 of which are not shown in Figure 2.

[0111] Within each battery cell row 105, 105-1, 105-2, 105-3, two battery cells 101, 101-1, 101-2 that are adjacent to each other along the longitudinal direction 121 can be housed in at least multiple parts through the opening 125 of each heat shield element 119, thereby enabling conductive connections between these two adjacent battery cells 101, 101-1, 101-2 through the heat shield element 119.

[0112] By arranging each of the multiple electrical connection elements 111 within the opening 125 of each heat shield element 119 in the form of at least multiple parts, conductive connections between two battery cells 101, 101-1, and 101-2 adjacent to each other along the longitudinal direction 121 can be made possible through the heat shield element 119.

[0113] Therefore, at least one heat shielding element 119 can ensure an effective heat shield between adjacent battery cells 101 located within each battery cell row 105.

[0114] For further details, please refer to the explanation below.

[0115] Figure 3 shows a schematic representation of the battery mounting system according to the above embodiment in a vertical cross-sectional view.

[0116] The battery mounting system 100 shown in Figure 3 corresponds to the battery mounting system 100 shown in Figure 2, and Figure 3 shows a vertical cross-sectional view.

[0117] Therefore, the drawing surface shown in Figure 3 corresponds to the vertical battery cell surface 107-2, and the vertical battery cell surface 107-2 intersects with multiple horizontal battery cell surfaces 107-1, which are only schematically shown in Figure 3.

[0118] Figure 3 shows how two adjacent battery cell rows 105, 105-1, 105-2, and 105-3, which are arranged parallel to each other, have different polarities, and how two battery cells 101, 101-1, and 101-2, belonging to different battery cell rows 105, 105-1, and 105-2 and arranged adjacent to each other, are arranged with an offset 127 from each other. The offset 127 extends along the longitudinal direction 121 of the battery cell rows 105, 105-1, 105-2, and 105-3.

[0119] Figure 3 shows that the first battery cell row 105, 105-1 and the third battery cell row 105, 105-3 have the same polarity and are arranged without an offset of 127 from each other, while the second battery cell row 105, 105-2 have a different polarity from the adjacent first battery cell row 105, 105-1 and the adjacent third battery cell row 105, 105-3.

[0120] The second battery cell rows 105 and 105-2 are arranged with an offset 127 along the longitudinal direction 121 of the battery cell rows 105, 105-1 and 105-3, in the opposite direction to the first and third battery cell rows 105, 105-1 and 105-3.

[0121] In order to effectively cover all the poles of the battery cells 101 in the arrangement shown in Figure 3, the first heat shield element 119-1 and the second heat shield element 119-2 are particularly necessary, and these are arranged between each of two adjacent battery cells 101 along the longitudinal direction 121 within each battery cell row 105, offset from each other, specifically by an offset of 127.

[0122] As can be seen from Figure 3, the diameters of the openings 125 of the first or second heat shield elements 119-1 and 119-2 are shaped differently to accommodate either the battery cell 101, particularly its pole 109, or the battery connection element 111.

[0123] In particular, the cell end 117 of the battery cell 101, which has the positive electrode 109-2, is housed in the first opening 125-1 of the first or second heat shield elements 119-1, 119-2. Specifically, the battery cell 101 itself is housed in the second opening 125-2 of the first and second heat shield elements 119-1, 119-2, and the second opening 125-2 has a larger diameter than the first opening 125-1.

[0124] Figure 4 shows a schematic representation of the connection area between two battery cells in the battery mounting system according to the above embodiment.

[0125] In the example shown in Figure 4, the electrical connection region between two adjacent battery cells along the longitudinal direction 121 within a single battery cell row 105 is shown for a period of time when one of the two battery cells 101 is in a thermally unstable state.

[0126] The first battery cell 101-1 is electrically connected to the second battery cell 101-2 by an electrical connection element 111. The contact area 113 of the electrical connection element 111 establishes a connection between the poles 109 of the first battery cell 101-1, particularly the negative pole 109-1, and the poles 109 of the second battery cell 101-2, particularly the positive pole 109-2.

[0127] Figure 4 also shows a heat shield element 119, which is positioned between the first battery cell 101-1 and the second battery cell 101-2, and the poles 109, in particular the positive pole 109-2, or the electrical connection element 111, are housed in at least multiple portions within the first opening 125 of the heat shield element 119.

[0128] The degassing valve 129 of the second battery cell 101-2, which is simply schematicly shown in Figure 4, opens when the second battery cell 101-2 is in a thermally unstable state, allowing high-temperature gas to escape from inside the second battery cell 101-2 and be effectively released through the heat shield element 119, thereby preventing a decrease in the thermal stability of the first battery cell 101-1.

[0129] Figure 5 shows a schematic representation of the battery mounting system according to the above embodiment in a perspective view.

[0130] Figure 5 shows a perspective view of the battery mounting system 100, particularly showing the extension of the height and width of the heat shielding element 119. Figure 5 schematically shows the horizontal battery cell surface 107-1 shown in Figure 2 and the vertical battery cell surface 107-2 shown in Figure 3.

[0131] Figure 5 shows the first heat shielding element 119-1 shown in Figure 3.

[0132] The heat shielding elements 119 and 119-2 are positioned between two adjacent battery cells 101 along the longitudinal direction 121 within each battery cell row 105, and have an opening 125 through which the adjacent battery cells 101 are electrically connected.

[0133] Due to the offset 127 shown in Figure 3, the first heat shield element 119-1 shown in Figure 5 has a first opening 125-1 having a smaller diameter, and within the first opening 125-1, a pole 109, in particular a positive pole 109-2, or an electrical connection element 111 connected to this pole 109, is housed in at least multiple portions. The electrical connection element 111 has a contact area 113 and a mounting element 115 positioned on the contact area 113, the mounting element 115 housing the cell end 117 of the second battery cell 101-2.

[0134] Due to the offset 127 shown in Figure 3, the first heat shield element 119-1 shown in Figure 5 has a second opening 125-2 with a larger diameter, each of which accommodates at least multiple portions of one of two battery cells 101 adjacent to each other along the longitudinal direction 121 within each battery cell row 105.

[0135] Figure 5 shows only the first heat shield element 119-1 positioned between the first battery cell 101-1 and the second battery cell 101-2; therefore, the additional second battery cell 101-2 is not shown in the selected representation in Figure 5. In particular, the heat shield element 119 is connected to adjacent battery cells 101 within each adjacent battery cell row 105, especially by welding, in a low-reliability manner, a high-reliability manner, and / or a firmly bonded manner.

[0136] Figure 6 shows a schematic representation of the battery mounting system according to the above embodiment in another perspective view.

[0137] Figure 6 shows a perspective view of the battery mounting system 100, particularly showing the extension of the height and width of the heat shielding element 119. Figure 6 schematically shows the horizontal battery cell surface 107-1 shown in Figure 2 and the vertical battery cell surface 107-2 shown in Figure 3.

[0138] Figure 6 shows the second heat shielding element 119-2 shown in Figure 3.

[0139] The heat shielding elements 119 and 119-2 are positioned between two adjacent battery cells 101 along the longitudinal direction 121 within each battery cell row 105 and have openings 125 (not shown in Figure 6) through which the adjacent battery cells 101 are electrically connected.

[0140] For technical reasons, Figure 6 only shows the battery cells 101, particularly the second battery cells 101-2, in each of the second horizontal battery cell levels 107-1. Therefore, the horizontal battery cell level 107-1 shows only the electrical connection elements 111, particularly the contact areas 113, arranged between the second battery cells 101-2, without the second battery cells 101-2 themselves.

[0141] The second heat shielding elements 119-2 shown in Figure 6 are all arranged at intervals along the longitudinal direction 121 between two battery cells 101 in a plurality of battery cell rows 105 that are arranged parallel to each other.

[0142] Accordingly, the heat shield elements 119 shown in the embodiment, particularly the first and second heat shield elements 119-1 and 119-2, ensure an effective thermal boundary between adjacent battery cells 101 along the longitudinal direction 121. [Explanation of Symbols]

[0143] 100 Battery Implementation System 101 battery cells 101-1 First battery cell 101-2 Second battery cell 103 Implemented Housing 105 Battery cell row 105-1 First battery cell row 105-2 Second battery cell row 105-3 Third battery cell row 107-1 Horizontal battery cell surface 107-2 Vertical battery cell surface 109 Electrode 109-1 Negative electrode 109-2 Positive electrode 111 Electrical connection elements 111-1 First electrical connection element 113 Contact area 115 Mounting elements 117 Cell end 119 Heat shielding element 119-1 First heat shield element 119-2 Second heat shielding element 121 Longitudinal direction 123 Cross-sectional direction 125 Opening 125-1 First opening 125-2 Second opening 127 Offset 129 Degassing valve

Claims

1. A battery mounting system (100) for mounting multiple battery cells (101, 101-1, 101-2) inside an electric vehicle, A mounting housing (103) for housing the plurality of battery cells (101, 101-1, 101-2), The plurality of battery cells (101, 101-1, 101-2) housed within the aforementioned mounting housing (103), Multiple electrical connection elements (111, 111-1), In a battery mounting system (100) comprising at least one heat shielding element (119, 119-1, 119-2), The battery cells (101, 101-1, 101-2) are arranged within a plurality of battery cell rows (105, 105-1, 105-2, 105-3) that are arranged in parallel with each other, and the battery cells (101, 101-1, 101-2) within the battery cell rows (105, 105-1, 105-2, 105-3) extend along the longitudinal direction (121) of the battery cell rows (105, 105-1, 105-2, 105-3). Each of the plurality of electrical connection elements (111, 111-1) electrically connects two adjacent battery cells (101, 101-1, 101-2) along the longitudinal direction (121) within each of the battery cell rows (105, 105-1, 105-2, 105-3), thereby providing an electrical series connection of each of the battery cell rows (105, 105-1, 105-2, 105-3). The at least one heat shield element (119, 119-1, 119-2) is positioned between two adjacent battery cells (101, 101-1, 101-2) along the longitudinal direction (121) within each of the battery cell rows (105, 105-1, 105-2, 105-3), and is formed to provide a heat shield wall between two adjacent battery cells (101, 101-1, 101-2) within each of the battery cell rows (105, 105-1, 105-2, 105-3), Two of the battery cells (101, 101-1, 101-2) belonging to different battery cell rows (105, 105-1, 105-2, 105-3) and arranged adjacent to each other are each arranged with an offset (127) from each other, the offset extending along the longitudinal direction (121), The battery mounting system (100) has at least one first heat shield element (119, 119-1) and at least one second heat shield element (119, 119-2), and the first heat shield element (119, 119-1) and the second heat shield element (119, 119-2) are different from each other and have an offset (127) from each other, and are arranged between each of two adjacent battery cells (101, 101-1, 101-2) along the longitudinal direction (121) within each of the battery cell rows (105, 105-1, 105-2, 105-3). Battery mounting system (100).

2. The battery mounting system (100) according to claim 1, wherein the at least one heat shielding element (119, 119-1, 119-2) is positioned between each of the plurality of electrical connection elements (111, 111-1) and one of two adjacent battery cells (101, 101-1, 101-2) within each of the battery cell rows (105, 105-1, 105-2, 105-3).

3. A battery mounting system (100) according to claim 1 or 2, wherein the heat shielding elements (119, 119-1, 119-2) positioned between two adjacent battery cells (101, 101-1, 101-2) along the longitudinal direction (121) within each of the battery cell rows (105, 105-1, 105-2, 105-3) extend along a transverse direction (123) perpendicular to the longitudinal direction (121).

4. Each of the heat shield elements (119, 119-1, 119-2) has at least one opening (125, 125-1, 125-2), and at least a portion of one of the two adjacent battery cells (101, 101-1, 101-2) within each of the battery cell rows (105, 105-1, 105-2, 105-3) is housed within the opening (125, 125-1, 125-2), or at least a portion of one of the multiple electrical connection elements (111, 111-1) is arranged within the opening (125, 125-1, 125-2), and each of the battery cell rows (105, A battery mounting system (100) according to claim 1, which provides a conductive connection between two adjacent battery cells (101, 101-1, 101-2) within (105-1, 105-2, 105-3).

5. The battery mounting system (100) according to claim 1, wherein at least one of the heat shielding elements (119, 119-1, 119-2) comprises a heat shielding plate.

6. The battery mounting system (100) according to claim 1, wherein the at least one heat shielding element (119, 119-1, 119-2) is positioned between each of two adjacent battery cells (101, 101-1, 101-2) along the longitudinal direction (121) within the plurality of battery cell rows (105, 105-1, 105-2, 105-3) which are arranged parallel to each other.

7. The battery mounting system (100) according to claim 1, wherein the battery cell rows (105, 105-1, 105-2, 105-3) arranged parallel to each other have the same polarity, and / or, two adjacent battery cell rows (105, 105-1, 105-2, 105-3) arranged parallel to each other have different polarities.

8. Each of the first heat shield element and the second heat shield element (119, 119-1, 119-2) has at least one first opening (125, 125-1), and at least a portion of one pole (109, 109-1, 109-2) of two adjacent battery cells (100, 100-1, 100-2) along the longitudinal direction (121) in each of the battery cell rows (105, 105-1, 105-2, 105-3) is housed in the first opening (125, 125-1), and / or each of the first heat shield element and the second heat shield element (119, 119-1, 119-2) has at least one second opening (125, 125-2), and the second opening (125, The battery mounting system (100) according to claim 1, wherein at least a portion of one of two battery cells (100, 100-1, 100-2) adjacent to each other along the longitudinal direction (121) within each of the battery cell rows (105, 105-1, 105-2, 105-3) is housed within 125-2).

9. The battery mounting system (100) according to claim 1, wherein one of the plurality of electrical connection elements (111, 111-1) each has a contact region (113), and the contact region (113) is electrically connected to one pole (109, 109-1, 109-2) of two adjacent battery cells (101, 101-1, 101-2) along the longitudinal direction (121), and is electrically connected to the other pole (109, 109-1, 109-2) of two adjacent battery cells (101, 101-1, 101-2) along the longitudinal direction (121).

10. The battery mounting system (100) according to claim 9, wherein the contact area (113) is firmly coupled to at least one of the electrodes (109), and the at least one heat shielding element (119, 119-1, 119-2) is positioned between each of the plurality of electrical connection elements (111, 111-1) and the electrodes (109, 109-1, 109-2).

11. The battery mounting system (100) comprises a plurality of heat shield elements (119, 119-1, 119-2) arranged at intervals along the long axis (121) of the battery cell rows (105, 105-1, 105-2, 105-3) within the mounting housing (103), and each of the plurality of heat shield elements (119, 119-1, 119-2) is positioned between two different battery cells (101, 101-1, 101-2) adjacent to each other along the longitudinal direction (121) within each of the battery cell rows (105, 105-1, 105-2, 105-3), and each of the battery cell rows (105, 105-1, 105-2, A battery mounting system (100) according to claim 1, which ensures a heat shield between a plurality of adjacent battery cells (101, 101-1, 101-2) along the longitudinal direction (121) within 105-3).

12. The battery mounting system (100) according to claim 1, wherein the at least one heat shielding element (119, 119-1, 119-2) is connected in a manner that is firmly coupled to at least one of two adjacent battery cells (101, 101-1, 101-2) along the longitudinal direction (121) within each of the battery cell rows (105, 105-1, 105-2, 105-3).

13. The battery mounting system (100) according to claim 1, wherein each of the battery cells (101, 101-1, 101-2) has at least one degassing valve (129), the degassing valve (129) is designed to release gas from each of the battery cells (101, 101-1, 101-2) in the event of excessive pressure within the battery cell (101, 101-1, 101-2), and the at least one degassing valve (129) is positioned in the spatial vicinity of the pole (109) of each of the battery cells (101, 101-1, 101-2).

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