BATTERY RECORDING SYSTEM

Abstract

Battery mounting system (100) for holding a plurality of battery cells (101) in an electrically powered vehicle, comprising: a receiving housing (103) for receiving the majority of the battery cells (101), the majority of battery cells (101) which are accommodated in the receiving housing (103), wherein the battery cells (101) each have at least one cell degassing element (105) which is designed to drain gas from the respective battery cell (101) in the event of overpressure within the respective battery cell (101), a gas discharge channel (107) which is arranged within the receiving housing (103), wherein the gas discharge channel (107) has an interior space (109) which is configured to receive gas escaping from at least one cell degassing element (105) of at least one battery cell (101) in order to discharge the received gas from the at least one battery cell (101), and a partition (111) which at least partially closes off the interior (109) of the gas discharge channel (107), wherein the partition (111) has a cut-through section (113) which is formed from a cutable material, wherein the cut-through section (113) is cutable by the gas escaping from the at least one cell degassing element (105) in order to create a breakthrough (115) in the cut-through section (113) through which the escaping gas can flow into the interior (109) of the gas discharge channel (107), wherein the cut-through section (113) is directly adjacent to the top of the battery cell (101).

Description

Technical field

[0001] The present invention relates to a battery mounting system for accommodating a plurality of battery cells in an electrically powered vehicle. State of the art

[0002] A battery mounting system is used in a conventional electric vehicle to house multiple battery cells that provide the electrical energy required to power the vehicle. Typically, lithium-ion battery cells are used, but these can be rendered thermally unstable by certain external factors such as overheating, overcharging, and / or mechanical damage.

[0003] If one or more battery cells become thermally unstable, a large quantity of hot gases is released under high pressure into the surrounding environment through a pressure relief valve within a short time. Due to the typically dense packing of the battery cells within the battery housing system, the hot gases released by the thermally unstable cell can also cause neighboring battery cells to become thermally unstable. This can potentially trigger a chain reaction that can severely damage or even destroy a large number of the battery cells.

[0004] DE 10 2020 128 756 A1 relates to a battery. The battery comprises a battery housing and several battery cells arranged side by side within it, each cell having at least one electrical contact and a vent on one side. The battery also includes an electrically insulating, flat protective element located between an outer wall of the battery housing (facing the vents) and the battery cells, such that the protective element covers the vents and the electrical contacts of the battery cells. The protective element is resistant over a large portion of its surface to material escaping from one of the battery cells in the event of a thermal failure. The protective element has predetermined breaking points at the vents, which are breached by the material escaping from the respective battery cell in the event of a thermal failure.

[0005] CN 1 14 010 988 A discloses a fire extinguishing device for a battery pack. A fire extinguishing device shell is arranged on the end caps of several battery modules. If a battery cell experiences thermal runaway, a high-temperature, high-velocity fluid sprayed from the end cap creates a thermal and force impact on the fire extinguishing device housing. This locally reduces and ruptures the mechanical strength of the fire extinguishing device housing at that location. A fire extinguishing agent is sprayed out of a gap, enters the thermally runaway battery module through the end cap, and coats the surface of the thermally runaway battery cell.

[0006] DE 10 2020 132 188 A1 relates to a degassing unit arrangement for closing a housing opening of a battery housing. The degassing unit of the degassing unit arrangement comprises a carrier body which has at least one rim surrounding a gas passage opening.

[0007] German patent DE 10 2019 111 787 A1 discloses a battery with a fire protection mat which has a casing filled with extinguishing agent. The casing is designed to release the extinguishing agent into the receiving space when exposed to a released hot gas from at least one battery cell, thus preventing thermal runaway of the battery.

[0008] DE 10 2010 039 976 A1 discloses a battery with a venting pipe system for removing gases released from the blow-off valves of the battery cells. The venting pipe system has a plurality of separate connections for receiving the released gases, as well as a common vent into which the separate connections open. A protective film is arranged between the blow-off valves and the separate connections, which prevents direct contact between the battery cells and the gases in the venting pipe system.

[0009] WO 2022 / 008080 A1 also discloses a battery with a fire protection mat which has weakened sections or pre-cuts through which gases or flames may flow into a ventilation duct. Description of the invention

[0010] It is an object of the present invention to provide a battery mounting system for an electrically powered vehicle which, in the event of a thermally unstable state of one battery cell, protects the neighboring battery cells of the battery mounting system from damage.

[0011] The problem is solved by the subject matter of the independent claim. Advantageous embodiments of the invention are specified in the dependent claims, the description, and the accompanying figures.

[0012] The present invention is based on the finding that a gas discharge channel of the battery receiving system ensures the removal of hot gases escaping from the battery cells, so that the hot gases emitted by a thermally unstable battery cell cannot thermally excite neighboring battery cells.

[0013] According to a first aspect of the invention, the problem is solved by a battery mounting system for receiving a plurality of battery cells in an electrically powered vehicle, comprising a mounting housing for receiving the plurality of battery cells, the plurality of battery cells which are received in the mounting housing, wherein the battery cells each have at least one cell degassing element which is configured to drain gas from the respective battery cell in the event of overpressure within the respective battery cell, a gas discharge channel which is arranged in particular within the mounting housing, wherein the gas discharge channel has an interior space which is configured to receive gas escaping from at least one cell degassing element of at least one battery cell in order to drain the received gas from the at least one battery cell, and a partition wall.which at least partially closes off the interior of the gas discharge channel, wherein the partition wall has a cut-through section formed from a cutable material, wherein the cut-through section is cutable by the gas escaping from the at least one cell degassing element in order to create a breakthrough in the cut-through section through which the escaping gas can flow into the interior of the gas discharge channel.

[0014] This achieves the technical advantage that the gas discharge channel ensures effective removal of hot gas escaping from at least one battery cell, so that if one of the neighboring battery cells should be brought into a thermally unstable state, it prevents the other neighboring battery cells from also being brought into a thermally unstable state.

[0015] In this process, the section of the partition formed from the severable material can be mechanically breached, in particular by the overpressure of the gas escaping from the respective battery cell, in order to create the breach in the section of the partition.

[0016] Alternatively or additionally, the severable material of the severance section can also be designed as a combustible material, so that if the gas escaping from the respective battery cell ignites, the combustible material can be burned through to create the rupture in the severance section. Hybrid forms combining mechanical rupture and burning through of the severance section are also possible.

[0017] In particular, the respective cell degassing element may include a cell degassing valve which is designed to open in the event of a pressure increase inside the respective battery cell in order to release gas from the respective battery cell.

[0018] Alternatively, the respective cell degassing element can in particular include a burst disc or a predetermined breaking point which is designed to break in the event of a pressure increase inside the respective battery cell in order to release gas from the respective battery cell.

[0019] In particular, the interior of the gas discharge duct is enclosed by the section of the partition wall cut through it and another wall of the gas discharge duct.

[0020] In this case, in particular the section of the partition wall cut through and the further wall of the gas discharge channel can be formed from the cutable material, whereby in particular the section of the partition wall can have a lesser thickness than the further wall of the gas discharge channel.

[0021] Alternatively, in particular the section of the partition wall where it is cut can be formed from the cutable material, and the further wall of the gas discharge channel can be formed from an inseparable material.

[0022] In one embodiment, the partition, in particular the section through which the partition is cut, is arranged on a side of the gas discharge channel facing the at least one cell degassing element.

[0023] This achieves the technical advantage that gas escaping from the respective cell degassing element can effectively come into contact with the partition, in particular with the cut section, in order to create the breakthrough in the cut section.

[0024] In one embodiment, the partition, in particular the section through which the partition is cut, is arranged at least section by section between the at least one cell degassing element and the interior of the gas discharge channel.

[0025] This achieves the technical advantage that the partition wall ensures effective separation of the interior of the gas discharge channel during normal operation of the battery cells.

[0026] In one embodiment, a side of the gas discharge channel facing away from the at least one cell degassing element is formed from an inseparable material which cannot be cut through by the gas guided in the interior of the gas discharge channel.

[0027] This achieves the technical advantage that the hot gas inside the gas discharge channel cannot penetrate the non-perforate material, thus preventing the hot gas from escaping the interior of the gas discharge channel. In particular, the non-perforate material located on the far side of the gas discharge channel has a greater thickness than the perforate material of the section where the gas is cut.

[0028] In one embodiment, the severable material comprises a non-flammable material.

[0029] This achieves the technical advantage that although the severable material can be cut by the hot gas to create the breakthrough, the severable material cannot ignite itself and therefore does not promote combustion.

[0030] In one embodiment, the gas discharge channel is arranged above several battery cells within the receiving housing, wherein the partition wall has a plurality of cut sections, each formed from the cuttable material, wherein the respective cut section can be cut by the gas escaping from the respective cell degassing element in order to create a breakthrough in the respective cut section through which the escaping gas can flow into the interior of the gas discharge channel.

[0031] This achieves the technical advantage that the gas discharge channel ensures the removal of gas from a plurality of cell degassing elements of a plurality of battery cells.

[0032] In one embodiment, at least one battery pole is arranged on the upper side of at least one battery cell, which is designed to rest against the partition wall in order to space the upper side of the at least one battery cell away from the partition wall.

[0033] According to the invention, the cut section is located directly on the top side of the battery cell, in particular directly on the cell degassing element.

[0034] This achieves the technical advantage that gas escaping from the cell degassing element can directly create the breakthrough in the cut section and penetrate into the interior of the gas discharge channel, thus preventing the escaping gas from reaching other battery cells.

[0035] In one embodiment, the at least one cell degassing element is arranged at a distance from the partition wall, wherein in particular a gas receiving chamber is arranged between the cell degassing element and the partition wall, in which the gas flowing out of the cell degassing element can be received before it flows through the opening into the interior of the gas discharge channel.

[0036] This achieves the technical advantage that the gas intake chamber absorbs the hot gas before it flows into the interior of the gas discharge channel. In particular, the gas intake chamber is separated from other battery cells by a barrier element to prevent the hot gas from penetrating from the gas intake chamber to the other battery cells.

[0037] In one embodiment, at least one guide element, in particular an annular guide element, is arranged on an upper side of the at least one battery cell, which is designed to guide the gas flowing out of the cell degassing element to the partition, wherein the at least one guide element is in particular arranged circumferentially around the cell degassing element, and wherein the guide element is in particular made of a non-combustible material.

[0038] This achieves the technical advantage that the guiding element ensures a directed flow of the hot gas to the section of the partition wall being cut and further into the interior of the gas discharge channel.

[0039] In one embodiment, the cutting section is designed as a cutting section that is deformable in the direction of the interior of the gas discharge channel, and a mandrel is arranged on a side of the interior of the gas discharge channel facing away from the cutting section, which is designed to create the opening in the deformable cutting section.

[0040] This achieves the technical advantage that the mandrel effectively creates the breakthrough. In particular, at least one section of the cut is designed exclusively as a section deformable towards the interior of the gas discharge channel, thus preventing a further section of the gas discharge channel from being deformed outwards by gas within the channel, and thus preventing gas from escaping through a further section of the cut.

[0041] In one embodiment, the severable material of the severance section has at least one predetermined breakthrough point which is structurally weakened compared to the severable material in order to create the breakthrough at the predetermined breakthrough point by means of the escaping gas.

[0042] This achieves the technical advantage that the breakthrough is effectively created through the intended breakthrough point.

[0043] In one embodiment, the gas discharge channel has at least a section of a fire-retardant material, wherein the fire-retardant material is designed to exit through the opening created in the partition wall in order to prevent the gas from spreading.

[0044] This achieves the technical advantage that the flame-retardant material can effectively prevent a battery fire.

[0045] In one embodiment, the fire-retardant material comprises an extinguishing powder and / or an extinguishing foam, which in particular comprises foamed silicon dioxide.

[0046] This achieves the technical advantage that the aforementioned materials ensure effective fire protection.

[0047] In one embodiment, the flame-retardant material is arranged in an interior space of the gas discharge channel, and / or the flame-retardant material is arranged in a receiving cartridge of the gas discharge channel, and / or the flame-retardant material is arranged in a receiving container between the battery cells.

[0048] This achieves the technical advantage of ensuring effective fire protection.

[0049] In one embodiment, the severable material of the severable section comprises a severable plastic, in particular a severable plastic film.

[0050] This achieves the technical advantage that the aforementioned severable materials ensure an effective separation of the interior of the gas discharge channel from the battery cells in the normal operating state, whereas in the event of a fault, the aforementioned severable materials can be severed by the gas escaping from the battery cells in order to create the breakthrough. Brief character description

[0051] Advantageous embodiments of the invention are explained below with reference to the accompanying figures. These show: Fig. 1A and Fig. 1B Schematic representations of a battery mounting system according to an exemplary embodiment; Fig. 2 a schematic representation of a battery mounting system according to a further embodiment; Fig. 3 a schematic representation of a battery mounting system according to a further embodiment; Fig. 4A, Fig. 4B and Fig. 4C Schematic representations of a battery mounting system according to a further embodiment; Fig. 5 a schematic representation of a battery mounting system according to a further embodiment; Fig. 6A, and Fig. 6B Schematic representations of a battery mounting system according to a further embodiment; and Fig. 7 a schematic representation of a battery mounting system according to a further embodiment.

[0052] The following detailed description refers to the accompanying figures, which form part thereof and illustrate specific embodiments in which the invention can be implemented. It is understood that other embodiments can also be used and structural or logical modifications can be made without deviating from the concept of the present invention. Therefore, the following detailed description is not to be understood as limiting. Furthermore, it is understood that the features of the various embodiments described herein can be combined with one another, unless specifically stated otherwise.

[0053] The aspect and embodiments of the present invention are described with reference to the figures, where the same reference numerals generally refer to the same elements. Numerous specific details are set forth in the following description for explanatory purposes, in order to provide a thorough understanding of the aspect of the present invention.

[0054] The figures are merely schematic representations and serve only to illustrate the invention. Identical or equivalent elements are consistently identified by the same reference numerals.

[0055] Fig. 1A and Fig. Figure 1B shows schematic representations of a battery mounting system according to an exemplary embodiment.

[0056] The one in Fig. 1A and Fig. 1B The battery mounting system 100, shown only schematically, enables the mounting of a plurality of battery cells 101 in an electrically powered vehicle. The battery mounting system 100 features a Fig. 1A and Fig. 1B only indicated receiving housing 103 for receiving the majority of battery cells 101. In the Fig. 1A represents battery cell 101. In the Fig. 1B shows two battery cells 101.

[0057] In a conventional electrically powered vehicle, a large number of battery cells 101 are required to provide sufficient electrical energy to power the vehicle. Typically, lithium-ion battery cells 101 are used for this purpose; however, these can enter a thermally unstable state under certain operating conditions.

[0058] For example, if a battery cell 101 is overcharged, overheated and / or mechanically damaged, an internal short circuit can occur within the battery cell, which can release a large amount of thermal energy inside the battery cell 101, causing the pressure inside the battery cell 101 to rise sharply.

[0059] To prevent damage to battery cell 101, each battery cell 101 has a Fig. 1A and Fig. Figure 1B shows a schematically depicted cell degassing element 105, which opens and can release a significant amount of hot gas into the immediate vicinity of the battery cell 101, as shown in the Fig. Figure 1B is schematically represented by an explosive marking. The cell degassing element 105 can comprise a cell degassing valve or a rupture disc.

[0060] Due to the often very dense packing of battery cells 101 in a conventionally used receiving housing 103, the hot gas released accordingly by the cell degassing element 105 can thermally excite other neighboring battery cells 101, so that the other, neighboring battery cells 101 may also be brought into a thermally unstable state.

[0061] Under certain circumstances, this can lead to a chain reaction in which a large number of battery cells 101 can be brought into thermally unstable states ("thermal propagation"), which may severely damage or even destroy the entire battery unit of the electrically powered vehicle.

[0062] For this reason, the battery receiving system 100 according to the present embodiment has an effective means of venting the hot gas released from the cell degassing element 105 in order to prevent neighboring battery cells 101 from also being brought into a thermally unstable state in the event of damage and the resulting release of thermal energy from a single battery cell 101.

[0063] The battery mounting system 100 has a gas discharge channel 107, which is arranged within the mounting housing 103. The gas discharge channel 107 has an interior 109, which is designed to collect the gas escaping from the respective cell degassing element 105 in order to discharge the collected gas from the battery cell 101, as described in Fig. 1B is shown.

[0064] As from the Fig. As can be seen from 1A, the battery receiving system 100 has a partition 111 which at least partially closes off the interior 109 of the gas discharge channel 107.

[0065] Here, the partition 111 is arranged on a side of the gas discharge channel 107 facing the cell degassing element 105. The partition 111 is arranged, at least in sections, between the at least one cell degassing element 105 and the interior 109 of the gas discharge channel 107.

[0066] As from the Fig. 1A can be removed, the interior 109 of the gas discharge channel 107 is closed off by the partition 111 in normal operation of the battery receiving system 100.

[0067] However, the partition 111 has a schematically depicted cut section 113, which is formed from a cuttable material. If hot gas now escapes from the cell degassing element 105, as occurs in the Fig. As shown in Figure 1B, the severable material of the cut section 113 is cut by the escaping gas, and a breakthrough 115 is created in the partition 111 through which the escaping gas can flow into the interior 109 of the gas discharge channel 107. The severing of the severable material of the cut section 113 can occur mechanically by an overpressure of the hot gas, and / or, if the hot gas ignites, also by burning through the severable material of the cut section 113.

[0068] On a side of the gas discharge channel 107 facing away from the cell degassing element 105, it is formed in particular from an inseparable material or from the inseparable material with a greater thickness than in the cut section 113, so that the further wall of the gas discharge channel 107 on the side facing away from the cell degassing element 105 is inseparable by the gas guided in the interior 109 of the gas discharge channel 107, so that the hot gas from the interior 109 of the gas discharge channel 107 cannot escape to the outside.

[0069] As from the Fig. As can be seen from 1B, the hot gas escaping from the cell degassing element 105 can be carried away through the interior 109 of the gas discharge channel 107 without the hot gas coming into contact with other adjacent battery cells 101, so that the other adjacent battery cells 101 are not thermally excited, and thus a thermal instability from one of the battery cells 101 does not spread to the other adjacent battery cells 101.

[0070] The properties of the severable material of the opening section 113 must be advantageously selected so that, on the one hand, in the event of the escape of hot gas, the severing to create the opening 115 is ensured, and on the other hand, the severable material must not be flammable by the hot gas to ensure that a fire cannot spread. In particular, the severable material comprises a severable plastic, especially a severable plastic film.

[0071] The cutting of the cutable material of the cutting section 113 can be caused by a high temperature of the hot gas and also by a high pressure of the hot gas, so that the cutable material of the cutting section 113 must have a suitable melting point, or so that the cutable material of the cutting section 113 must have a suitable structural stability in order to yield to the corresponding pressure.

[0072] Furthermore, it must be ensured that the temperature of the hot gas inside the interior 109 of the gas discharge channel 107 decreases so effectively that a cutaway of a cutaway material in a further cutaway section 113 does not occur.

[0073] From the Fig. Figure 1B shows, for example, that the gas venting channel 107 is arranged above a plurality of battery cells 101 within the receiving housing 103, and that the gas venting channel 107 extends in particular along a top surface of several battery cells 101.

[0074] Here, the partition wall 111 has a plurality of cut sections 113, each of which is formed from the cutable material, wherein the respective cut section 113 can be cut through by the gas escaping from the respective cell degassing element 105 in order to create a breakthrough 115 in the respective cut section 113, through which the escaping gas can flow into the interior 109 of the gas discharge channel 107.

[0075] Even if in the Fig. Figure 1B shows only a section of the gas discharge channel 107, in particular each cell degassing element 105 of each battery cell 101 is in contact with a corresponding cut section 113, so that the gas discharge channel 107 can receive and discharge hot gas that escapes from any battery cell 101 or the majority of battery cells 101.

[0076] From the Fig. 1A and the Fig. Figure 1B shows that at least one battery terminal 117 is arranged on the upper side of the battery cell 101. This terminal is designed to abut the partition 111 in order to space the upper side of the at least one battery cell 101 away from the partition 111. The battery terminal 117 also spaces the cell degassing element 105 away from the partition 111, so that a gas receiving chamber 119 is arranged between the cell degassing element 105 and the partition 111. This gas receiving chamber collects the gas escaping from the cell degassing element 105 before it flows through the opening 115 into the interior 109 of the gas discharge channel 107. In particular, the gas receiving chamber 119 is separated by a [missing information - likely a specific opening or feature] in the Fig. 1A and Fig. 1B barrier element not shown separates from the other adjacent battery cells 101, so that hot gas from the gas intake chamber 119 cannot penetrate to the other adjacent battery cells 101.

[0077] Even if this is in the Fig. 1A and Fig. As 1B is not shown, with a different arrangement of the battery poles 117 the gas discharge channel 107 can alternatively also be located directly on a top side of the battery cells 101, in particular directly on the respective cell degassing element 105.

[0078] Fig. Figure 2 shows a schematic representation of a battery mounting system according to a further embodiment.

[0079] The in Fig. The further embodiment shown in section 2 differs from the one described in the Fig. 1A and Fig. In the embodiment shown in Figure 1B, a guide element 121, in particular an annular guide element 121, is arranged on a top side of the battery cell 101 and is designed to guide the gas flowing from the cell degassing element 105 to the partition 111. The at least one guide element 121 is arranged in particular around the cell degassing element 105 and consists in particular of a non-combustible material, especially a bulkhead material.

[0080] The guide element 121 thus limits the gas absorption space 119 between the cell degassing element 105 and the partition 111 and thereby ensures that the hot gas escaping from the cell degassing element 105 inevitably hits the severable material of the cut section 113 and creates the breakthrough 115, and thus the hot gas escaping from the cell degassing element 105 cannot penetrate to the adjacent further battery cells 101.

[0081] Fig. Figure 3 shows a schematic representation of a battery mounting system according to a further embodiment.

[0082] The in Fig. The further embodiment shown in section 3 differs from the one in the Fig. 2 further embodiment by a mandrel 123, which is arranged and formed on a side of the gas discharge channel 107 facing away from the cutting section 113, which in Fig. 3. To create a breakthrough 115 in the section 113 (not shown), through which the escaping gas can flow into the interior 109 of the gas discharge channel 107.

[0083] Here, the cut section 113 is designed as a cut section 113 that is deformable towards a side facing away from the cell degassing element 105, so that when the hot gas presses against the cut section 113 at high pressure, it deforms into the interior 109 of the gas discharge channel 107, causing the cut section 113 to abut the tip of the mandrel 123. The mandrel 123 then perforates the cut section 113, creating the opening 115. The mandrel thus assists in creating the opening 115, and for this reason, the cutable material of the cut section 113 can exhibit higher stability in this case, preventing, for example, the cut section 113 from being bent outwards.

[0084] Even if this is in the Fig. 3 not shown, the severable material of the severance section 113 may have at least one predetermined breakthrough point which is structurally weakened compared to the severable material in order to create the breakthrough 115 at the predetermined breakthrough point by means of the escaping gas.

[0085] A corresponding predetermined breakthrough point thus advantageously defines the position of the breakthrough 115 and can in particular be formed by perforations in the cutting section 113 and / or by sharp edges of the gas discharge channel 107.

[0086] Fig. 4A, Fig. 4B and Fig. Figure 4C shows schematic representations of a battery mounting system according to a further embodiment.

[0087] The in Fig. 4A, Fig. 4B and Fig. The further embodiment shown in Figure 4C differs from the preceding further embodiments in that the gas discharge channel 107 has, at least in sections, a fire-retardant material, which in particular comprises an extinguishing powder and / or a fire-extinguishing foam, which in particular comprises foamed silicon dioxide. The fire-retardant material is arranged in the interior 109 of the gas discharge channel 107.

[0088] From the Fig. 4A can be seen that in normal operation of the battery receiving system 100 the fire-retardant material 125 is enclosed by the partition 111 in the interior 109 of the gas discharge duct 107.

[0089] If hot gas escapes from the cell degassing element 105 and a breakthrough 115 is created in the severable material of the severance section 113 by the hot gas, then, as described in the Fig. As shown in Figure 4B, the fire-retardant material 125 is removed from the opening 115 created in the partition 111 to prevent the gas from spreading.

[0090] In the Fig. Figure 4C shows how the fire-retardant material 125 emerging from the opening 115 in the partition wall 111 is distributed in the area of ​​adjacent battery cells 101 to ensure effective fire protection.

[0091] The use of the flame-retardant material 125 is particularly relevant if the energy or fire load of a battery cell 101 is so high that controlled discharge of the hot gas through the gas discharge channel 107 is only possible to a limited extent.

[0092] Fig. Figure 5 shows a schematic representation of a battery mounting system according to a further embodiment.

[0093] The in Fig. The further embodiment shown in 5 differs from the one in Fig. 4 further embodiment shown in the illustration, in that the flame-retardant material 125 is not arranged in the interior 109 of the gas discharge channel 107, but in a receiving cartridge 127 of the gas discharge channel 107. The gas discharge channel 107 is in the Fig. 5 is not visible because it is located behind the drawing plane.

[0094] Fig. 6A and Fig. Figure 6B shows a schematic representation of a battery mounting system according to a further embodiment.

[0095] The in Fig. 6A and Fig. The further embodiment shown in 6B differs from the one in Fig. 4 further embodiment shown in that the fire-retardant material 125 is not arranged in the interior 109 of the gas discharge channel 107, but in a receiving container 129 between the battery cells 101.

[0096] Fig. Figure 7 shows a schematic representation of a battery mounting system according to a further embodiment.

[0097] The in Fig. The further embodiment shown in 7 corresponds to a combination of the one described in Fig. 1A and Fig. 1B illustrated embodiment and the embodiment shown in Fig. 3 illustrated embodiment. REFERENCE MARK LIST 100 battery mounting system 101 battery cell 103 Recording housings 105 Cell degassing element 107 Gas discharge channel 109 Interior of the gas discharge duct 111 Partition wall 113 Cut section 115 Breakthrough 117 Battery terminal 119 Gas reception room 121 Guide element 123 Dorn 125 Fire-retardant material 127 Recording cartridge 129 receiving containers

Claims

[1] Battery mounting system (100) for holding a plurality of battery cells (101) in an electrically powered vehicle, comprising: a receiving housing (103) for receiving the majority of the battery cells (101), the majority of battery cells (101) which are accommodated in the receiving housing (103), wherein the battery cells (101) each have at least one cell degassing element (105) which is designed to drain gas from the respective battery cell (101) in the event of overpressure within the respective battery cell (101), a gas discharge channel (107) which is arranged within the receiving housing (103), wherein the gas discharge channel (107) has an interior space (109) which is configured to receive gas escaping from at least one cell degassing element (105) of at least one battery cell (101) in order to discharge the received gas from the at least one battery cell (101), and a partition (111) which at least partially closes off the interior (109) of the gas discharge channel (107), wherein the partition (111) has a cut-through section (113) which is formed from a cutable material, wherein the cut-through section (113) is cutable by the gas escaping from the at least one cell degassing element (105) in order to create a breakthrough (115) in the cut-through section (113) through which the escaping gas can flow into the interior (109) of the gas discharge channel (107), wherein the cut-through section (113) is directly adjacent to the top of the battery cell (101). [2] Battery receiving system (100) according to claim 1, wherein the partition (111), the cutting section (113), is arranged on a side of the gas discharge channel (107) facing the at least one cell degassing element (105). [3] Battery receiving system (100) according to claim 1 or 2, wherein the partition (111), the cutting section (113), is arranged at least sectionally between the at least one cell degassing element (105) and the interior (109) of the gas discharge channel (107). [4] Battery receiving system (100) according to one of the preceding claims, wherein a side of the gas discharge channel (107) facing away from the at least one cell degassing element (105) is formed from an inseparable material which is inseparable by the gas guided in the interior (109) of the gas discharge channel (107). [5] Battery receiving system (100) according to any of the preceding claims, wherein the severable material comprises a non-flammable material. [6] Battery receiving system (100) according to one of the preceding claims, wherein the gas discharge channel (107) is arranged above several battery cells (101) within the receiving housing (103), wherein the partition (111) has a plurality of cut sections (113) which are each formed from the cutable material, wherein the respective cut section (113) can be cut by the gas escaping from the respective cell degassing element (105) in order to create a breakthrough (115) in the respective cut section (113) through which the escaping gas can flow into the interior (109) of the gas discharge channel (107). [7] Battery receiving system (100) according to one of the preceding claims, wherein at least one guide element (121) is arranged on a top side of the at least one battery cell (101), which is configured to guide the gas flowing out of the cell degassing element (105) to the partition (111), wherein the at least one guide element (121) is arranged circumferentially around the cell degassing element (105), and wherein the guide element (121) is made of a non-combustible material. [8] Battery receiving system (100) according to one of the preceding claims, wherein the cutting section (113) is designed as a cutting section (113) that is deformable in the direction of the interior (109) of the gas discharge channel (107), and wherein a mandrel (123) is arranged on a side of the interior (109) of the gas discharge channel (107) facing away from the cutting section (113), which is designed to create the opening (115) in the deformable cutting section (113). [9] Battery receiving system (100) according to one of the preceding claims, wherein the cuttable material of the cut section (113) has at least one predetermined breakthrough point which is structurally weakened relative to the cuttable material in order to create the breakthrough (115) at the predetermined breakthrough point by means of the escaping gas. [10] Battery receiving system (100) according to one of the preceding claims, wherein the gas discharge channel (107) has at least sectionally a flame-retardant material (125), wherein the flame-retardant material (125) is configured to exit from the created opening (115) in the partition (111) in order to prevent the propagation of the gas. [11] Battery receiving system (100) according to claim 10, wherein the fire-retardant material (125) comprises an extinguishing powder and / or an extinguishing foam which comprises foamed silicon oxide. [12] Battery receiving system (100) according to claim 10 or 11, wherein the flame-retardant material (125) is arranged in an interior (109) of the gas venting channel (107), and / or wherein the flame-retardant material (125) is arranged in a receiving cartridge (127) of the gas venting channel (107), and / or wherein the flame-retardant material (125) is arranged in a receiving container (129) between the battery cells (101). [13] Battery receiving system (100) according to one of the preceding claims, wherein the cuttable material of the cut section (113) comprises a cuttable plastic.

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