Stationary storage system for batteries

Abstract

Stationary storage system (10) for vehicle traction batteries (100) with the following features: a. the storage system (10) has a plurality of storage areas (90) for vehicle traction batteries (100) and b. the storage areas (90) are arranged vertically on at least two levels and separated from each other by intermediate floors (40), and c. the intermediate floors (40) are at least partially designed as double floors with an upper load-bearing floor (42) and a lower ceiling floor (46), between which a free space (50) is provided, characterized by the features: d. in one plane at least two storage areas (90) are arranged horizontally next to each other and separated from each other by a partition wall (24), and e. the open space (50) below or above these at least two storage areas (90) is designed as a single open space (50) without a separating partition wall, and f. in this free area (50) at least one sensor (86) is arranged which detects physical quantities of the at least two storage areas (90).

Description

SCOPE OF APPLICATION AND STATE OF THE ART

[0001] The invention relates to a stationary storage system for vehicle traction batteries, in particular for storing such batteries before assembly in a motor vehicle during vehicle manufacturing.

[0002] With the increasing production of electric vehicles, a way is needed to temporarily store the drive vehicle batteries at the battery manufacturer's facility before delivery or at the vehicle manufacturer's facility before installation. It must be considered that such batteries inherently pose an increased risk, as they are considered fire hazards due to handling during delivery and temporary storage, as well as their charge and chemical composition.

[0003] Related storage systems are known from the prior art, but most of them serve a different purpose, namely the storage of traction vehicle batteries designed as exchangeable batteries, which are therefore regularly stored and charged outside the vehicle in dedicated storage systems. Corresponding racking systems are known, for example, from DE 24 51 408 A1 and US 2015 / 0307 068 A1.

[0004] Other known storage systems also serve different purposes, namely the storage of batteries as a safety and backup option for power outages, for example in the telecommunications sector or in hospitals (US 2007 / 0053162A1, WO 2012 / 125116A1). Storage systems are also known to be part of electrical cabinets (EP 2975919A1).

[0005] Shelving systems with the possibility of charging batteries in individual compartments are also covered by WO 2013 / 144 951 A1, EP 2 975 919 A1 and US 2007 / 0 184 339 A1. US 2007 / 0 184 339 A1 also specifies the possibility of equipping individual compartments with temperature sensors. TASK AND SOLUTION

[0006] The object of the invention is to provide a storage system for batteries that is adapted to the specific requirements of batteries as dangerous goods and that serves to store the batteries before installation in a motor vehicle.

[0007] According to a first aspect of the invention, this problem is solved by a stationary storage system which is designed as follows.

[0008] The storage system has multiple storage areas for vehicle traction batteries. These storage areas are arranged vertically on at least two levels and separated from each other by intermediate floors. At least some of these intermediate floors are designed as raised floors with an upper load-bearing floor and a lower ceiling floor, with an open space between them.

[0009] In this design, the horizontally extending intermediate floors, which are arranged between storage areas above and below the intermediate floors, are formed by spaced-apart floors, namely the upper load-bearing floor and the lower ceiling floor. A clear space with a minimum width of a few centimeters is provided between these.

[0010] This design of the intermediate floors as raised floors primarily leads to an increased level of safety. In the event of a fire, initially only the load-bearing floor located beneath the battery will be affected. Only if this floor fails will the burning battery exert its pressure on the ceiling floor below.

[0011] Furthermore, the open area is well suited for accommodating supply and drainage lines, such as fluid lines for sprinkler systems or electrical and data lines. These are preferably laid on the lower ceiling floor so that they remain unaffected for a particularly long time in the event of a fire in a storage area.

[0012] In particular, the open space between the load-bearing floor and the ceiling of the intermediate floors is suitable for supplying or removing gas, especially air, into or from the storage area. This will be explained in more detail below.

[0013] According to the invention, at least two storage areas are arranged horizontally side by side in one plane and separated from each other by a partition wall. The free space below or above the support floors of these at least two storage areas is designed as a single free space without a separating partition wall.

[0014] In this common free area, at least one sensor is arranged which detects physical quantities of the at least two storage areas, wherein in particular preferably the sensor is formed by a thermal imaging camera which is oriented in such a way that the heating of the supporting floor above the free area or of the ceiling floor below the free area can be detected in a differentiated manner according to storage area.

[0015] In particular, the open areas are designed to be so free of intervening structures that there is an unobstructed line of sight across them, thus forming a common open area that can be monitored by a sensor, especially an optical sensor. The aforementioned thermal imaging camera is considered particularly advantageous for this purpose. It can be positioned at one end of the common open area and thus monitor the load-bearing floors or ceilings of the individual open areas forming the common open area, thereby detecting a temperature increase and identifying the affected storage area.

[0016] Each storage area can be designed to accommodate at least one vehicle battery, where, in the context of this description, a vehicle traction battery is understood to be the unified battery module of a motor vehicle, possibly subdivided into a few sub-units. A vehicle battery in this sense has a capacity of at least 5 kWh and a mass of at least 100 kg, in particular a capacity of at least 5 kWh and a mass of at least 200 kg. The storage areas have dimensions suitable for accommodating such vehicle traction batteries, in particular a size of at least 150 cm x 100 cm x 20 cm. Preferably, the size of the storage areas is at least 200 cm x 150 cm x 20 cm, so that the accommodation of larger vehicle batteries is also possible.

[0017] A gas supply channel or a gas exhaust channel is preferably arranged between the ceiling floor and the supporting floor of the intermediate floor. The intermediate floors, bounded by their upper supporting floors and their lower ceiling floors, preferably form the gas supply channel or gas exhaust channel.

[0018] While the arrangement of gas supply or exhaust ducts formed by pipes in the open area is already advantageous, it is particularly beneficial if the supporting floor and / or the ceiling floor itself form the boundary of the respective duct, so that it can be separated from the storage areas above and below by these floors. In principle, it is possible to implement the gas supply and exhaust here, if necessary by providing an additional floor. It is also conceivable to use the intermediate floors alternately as gas supply and exhaust ducts. However, it is advantageous if only the gas exhaust occurs through the open area in the intermediate floor, while the gas supply preferably occurs from the front, since the storage areas are preferably open at the front.

[0019] The aforementioned problem is solved, according to a second aspect of the invention, by a stationary storage system designed as follows: The storage system has a plurality of storage areas for vehicle traction batteries. These storage areas are arranged vertically one above the other in at least two levels and separated from each other by intermediate floors. Alternatively or additionally, at least two storage areas are arranged horizontally next to each other in one level and separated from each other by a partition wall. The intermediate floors are at least partially designed as raised floors with an upper load-bearing floor and a lower ceiling floor, between which a free space is provided.

[0020] According to the invention, the bearing areas of a horizontal or vertical row of bearing areas have a common gas supply channel or gas discharge channel. Each bearing area is assigned an individually adjustable throttle between the common gas supply channel or gas discharge channel and the bearing area, the throttle being designed for manual or motorized adjustment.

[0021] The aforementioned restrictors, which are preferably designed as grids adjustable with respect to flow resistance, allow the flow resistance between a bearing area and a gas supply or exhaust channel common to several bearing areas to be adjusted. Motorized adjustment can be advantageous for influencing the gas supply or exhaust in response to sensor data. However, in a preferred embodiment, these restrictors assigned to the individual bearing areas are designed for manual adjustment, as they serve the purpose of compensating for the different arrangement of the bearing areas on the common gas supply or exhaust channel. This ensures that, through appropriate adjustments of the restrictors, the same volume of air is supplied to or extracted from each bearing area per unit of time.

[0022] The aforementioned problem is solved according to a third aspect of the invention by a stationary storage system designed as follows: The storage system has a plurality of storage areas for vehicle traction batteries. These storage areas are arranged vertically one above the other in at least two levels and separated from each other by intermediate floors. The intermediate floors are at least partially designed as double floors with an upper load-bearing floor and a lower ceiling floor, between which a free space is provided.

[0023] According to the invention, a gas supply channel or a gas discharge channel is arranged between the ceiling floor and the supporting floor of the intermediate floor. Furthermore, several common gas supply channels or gas discharge channels are connected to a main gas supply channel or main gas discharge channel, each in a horizontal or vertical row of storage areas. Each common gas supply channel or gas discharge channel is associated with an individually adjustable throttle between the common gas supply channels or gas discharge channels on the one hand and the main gas supply channel or main gas discharge channel on the other, wherein this throttle is designed for manual or motorized adjustment.

[0024] This design therefore provides for multiple gas supply or gas discharge channels, each with several storage areas connected to it. These multiple gas supply or gas discharge channels preferably have, in addition to the throttles already mentioned above, further throttles in the area where they connect to the central main gas supply or discharge channel. These throttles, which are preferably designed as throttle valves, are preferably designed for motorized adjustment so that they can be set in response to detected sensor data in such a way as to counteract critical situations, particularly in the case of a fire.

[0025] The storage system preferably has an open or closed circuit, within which gas extracted from a storage area is at least partially and preferably after a cooling process returned to the storage areas.

[0026] An open circuit is understood to mean that the space in which the storage system is installed is part of this circuit. The air supplied to the storage areas is therefore drawn from the common surrounding space, and the air extracted from the storage areas is returned to the space. Preferably, a cooling unit is provided which cools the extracted air before it is returned to the space. Such a cooling unit is essential, however, and does not necessarily have to be part of the storage system itself.

[0027] A closed circuit is understood to mean that at least predominantly the same air is repeatedly supplied to the storage areas. For the definition of a closed circuit within the meaning of the invention, it is acceptable if up to 25% of the air volume is exchanged with the surroundings during each cycle to ensure a supply of fresh air and to prevent a slow, but non-critical, increase in gas composition values ​​in the recirculated air. In the case of a closed circuit, the storage system preferably includes a cooling unit. In particular, this is preferably directly integrated into the racking system and located on it.

[0028] The storage areas are preferably each equipped with a gas outlet in the area of ​​a support floor, which is preferably covered by a manually adjustable throttle grid.

[0029] The gas outlet located in the area of ​​the support base, and thus below the respective storage area, makes it particularly advantageous to detect gases that are heavier than the surrounding air and that could escape from a stored vehicle traction battery in the event of damage. Furthermore, it has been observed that batteries heat up during charging, especially on their underside, where cooling is particularly beneficial. The gas outlet on the support base allows for particularly effective cooling of this underside. The battery or the receiving container preferably has feet that ensure a distance between the underside of the battery or the receiving container and the support base, allowing air to flow in and escape through the gas outlet.However, it may also be provided that the support surface itself has raised areas on both sides of the gas outlet, such as guide rails, on which the battery or the receiving container is placed, so as not to block the gas outlet.

[0030] The storage system according to the invention is designed as a stationary storage system, i.e. for installation in the area of ​​a warehouse, for example in a production or storage hall at the manufacturer of the vehicle batteries, but especially at the vehicle manufacturer.

[0031] Preferably, it is designed in the form of a racking system, wherein the storage areas are each separated from adjacent storage areas arranged horizontally on the same level by partition walls, separated from adjacent storage areas arranged vertically above or below by shelves, and bounded at the rear by a back wall. Only on the side opposite the back wall are the storage areas open to the front.

[0032] The stationary storage system of the invention has a common frame with base support surfaces, by means of which it is erected. Preferably, it has at least four vertical columns, which may in particular be formed by hollow profiles. Profiles for inserting the shelves or other means for fastening them are preferably provided on these columns. The shelves themselves, as well as the partitions between the storage areas, are preferably designed as fire-resistant panels.

[0033] One particular configuration of the storage system involves a design similar to a double rack, where two rack systems of the type described above and illustrated in the following figures are positioned back-to-back, or are integrated as a single system with shared structural elements, particularly column profiles. This allows for the shared use of system components, such as a conveyor system, a cooling unit, or the aforementioned sensors. Such a rack system would be loaded and unloaded from two opposite sides.

[0034] In a preferred storage system where gas is extracted from the storage areas via a common duct, but ventilation is provided from within the room itself, complete isolation of the storage areas from one another is not required. However, the walls of each storage area, in particular the supporting floor, the ceiling, and the side partitions, are preferably designed such that the air extracted by the gas extraction system flows into the storage area at least predominantly from the front.

[0035] The gas supply and gas discharge are preferably achieved through open areas in the intermediate floors, as described above. These areas must be gas-tight, except where inlets and outlets are intended.

[0036] As explained above, the storage areas for the vehicle traction batteries preferably have dimensions of at least 150 cm x 100 cm x 20 cm. Preferably, the batteries are each stored in individual containers, requiring the storage areas to be dimensioned accordingly. Although not preferred, the storage areas can also be designed and dimensioned to accommodate two or more batteries, with or without individual containers.

[0037] Each storage area is preferably equipped with at least one charging port for connecting the battery to the storage system's power supply network. Although a storage system according to the invention is preferably not primarily used for charging batteries, providing a charging port is nevertheless advantageous for maintaining the battery charge level above a minimum value or within a preferred interval. For example, charging can be initiated when the battery charge level drops below 40%. Since self-discharge of 0.1 to 0.5% per day is not uncommon for vehicle batteries, and since batteries in a storage system according to the invention are sometimes stored for several days, such a charging port is beneficial. Preferably, the charging current supplied via this port is controlled by a central control unit, which will be explained in more detail below.Alternatively, a battery-integrated charging controller can also be used.

[0038] The storage areas each preferably have at least one interface for communication with battery-internal control units and / or sensors or for communication with receiving containers for receiving batteries.

[0039] The interface for communication between the storage areas and the batteries they hold can be established simply by placing the battery in the charging area or via a cable connection. This interface allows a central control unit of the storage system to also evaluate data from sensors within the batteries, for example, to determine the battery's charge level or temperature. If the batteries are inserted into the storage areas in containers, it can also be advantageous to query the sensors in these containers via this interface. Temperature sensors or gas composition sensors, in particular, can be part of such containers.

[0040] Each storage area can be equipped with its own individual sprinkler system for extinguishing battery fires. These individual sprinkler systems allow the storage system to extinguish fires detected by the aforementioned sensors early and locally.

[0041] A stationary storage system for vehicle traction batteries according to the invention preferably has a central control unit designed for the central reception of data from the gas sensors and, if applicable, other sensors.

[0042] The central control unit is preferably integrated directly into the storage system or onto the racking system that forms the storage system. However, a separate design with connecting data lines is also possible.

[0043] The central control unit is preferably designed to forward received data or derived data to a control center or fire alarm control panel. In such a configuration, the central control unit evaluates the data from various gas or temperature sensors. If this data is considered critical, for example, because it is caused by a battery leak or a fire, a control center can be immediately informed so that measures can be initiated to combat the incident.

[0044] The central control unit is preferably also designed to control the motor-adjustable throttles assigned to the storage areas and / or to the common ventilation or exhaust ducts. Alternatively or additionally, the central control unit can be configured to control at least one conveying device by means of which gas can be extracted from or supplied to a storage area. It is also possible to configure the central control unit to control at least one sprinkler system.

[0045] According to this advanced training, the central control unit is thus trained to carry out certain measures to influence the batteries or fire-fighting measures itself, in particular by controlling the supplied or extracted air, by controlling the charging current and / or by controlling a common or individual sprinkler system.

[0046] The central control unit is preferably designed such that, in response to a heating of a vehicle traction battery in the storage area, which is detected by means of a sensor, the gas supply or gas discharge into this storage area or into a vertical or horizontal row in which this storage area is arranged is increased.

[0047] This approach is used when a detected temperature increase is not considered critical, for example, because it falls within the range of what is expected during battery charging. In such a case, compensation can be achieved by increasing the gas supply, particularly the air supply. This increased gas supply can be achieved by controlling throttles or by increasing the output of a central ventilation system.

[0048] For most battery types, temperatures between 15°C and 30°C are considered suitable for storage. The central control unit is therefore specifically designed to ensure appropriate temperature conditions in all storage areas containing vehicle batteries, primarily through decentralized interventions, particularly at chokes, and, if necessary, supplemented by central interventions, such as a central ventilation system and / or a central cooling system.

[0049] Alternatively or additionally, the control unit can be designed such that, in response to a heating in a storage area detected by a sensor, or in response to the detection of a concentration of a gas in the discharged gas that is above a predefined limit value, or in response to a volume flow rate that is above or below the respective predefined limit values, the gas supply or discharge into this storage area or into a vertical or horizontal row in which this storage area is arranged is reduced or prevented, and / or a sprinkler system is activated.

[0050] This procedure is intended for use in critical situations. Shutting down the gas supply or exhaust to a storage area, for example by appropriately controlling the throttles, can reduce the oxygen supply to a fire and thus have a fire-retardant effect. A sprinkler system also offers a way to extinguish a fire, particularly locally within the affected storage area itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Further advantages and aspects of the invention will become apparent from the claims and from the following description of preferred embodiments of the invention, which are explained below with reference to the figures. Fig. Figure 1 shows a bearing system according to the invention in a perspective view. Fig. 2 shows the storage system of the Fig. 1 in the same perspective with the ceiling element assumed. Fig. Figure 3 shows the storage system in a cutaway view. Fig. Figure 4 shows an alternative variant of the bearing system according to the invention. DETAILED DESCRIPTION OF THE EXECUTION EXAMPLES

[0052] Fig. Figure 1 shows a storage system 10 according to the invention, which is designed to accommodate vehicle traction batteries 100. These vehicle traction batteries 100 are comparatively large battery modules with a size of at least 150 cm x 100 cm x 20 cm, which are temporarily stored in a storage system 10 of the type shown and described below, particularly in the area of ​​vehicle assembly, in order to be installed in the vehicles from there.

[0053] The storage system 10 has a total of 16 storage areas 90, each designed to accommodate a battery module in the form of a vehicle traction battery 100 of the type described above. These 16 areas are arranged in horizontal and vertical rows of four storage areas 90 each.

[0054] These storage areas 90 are located at the in Fig. The front side is open, marked by inflow arrows, and otherwise closed, as will be explained in more detail in the further figures.

[0055] To ensure the temperature of the vehicle traction batteries in storage areas 90, a ventilation system is provided, which will be explained further below and to which an already in Fig. The system includes a main gas discharge channel 64, a cooling device 132, and a conveying device 134. A central control unit 120 is provided at the end of the racking system to control this ventilation system. A flow sensor 85 is provided, which is located in Fig. Figure 3 shows the device that allows it to be determined whether the conveying device 132 is operating as expected. It could, for example, be a differential pressure sensor.

[0056] Fig. Figure 2 shows the bearing system 10 again with the upper cover plate removed for the purpose of clarification. Fig. 1. It is evident that the storage system 10 is formed from a plurality of vertical columns in the form of hollow profiles, to which intermediate shelves 40 are attached. The storage areas 90 are separated from each other by partition walls 24. On the left and right sides as well as at the rear, the storage areas 90 are bounded by walls 25, 26.

[0057] Each storage area 90 has a charging port 102 and a data interface 104. Vehicle traction batteries 100 can be charged in storage via the charging port 102 and a dedicated cable (not shown), or it can be prevented that a target minimum charge level is not reached. Vehicle traction batteries 100 or storage containers 101 for vehicle traction batteries can also be connected to the central control unit 120 via the data interface 104 and a cable (not shown). This enables the sensors integrated into removable storage containers or into the vehicle traction batteries themselves to provide additional data to the central control unit 120, such as temperature or charge level data.

[0058] The support surface 42, which limits the storage areas 90 downwards, is each provided with a gas outlet 60, which can be opened, narrowed or closed relative to the storage area 90 by means of a throttle 72 designed as an adjustable grid.

[0059] In Fig. Figure 3 shows the ventilation system starting from the gas outlets 60 in the sectioned area. The gas outlets 60 each open into a common gas discharge duct 62, which is located within the intermediate floors 40 designed as a double floor. As can be seen from the Fig. As can be seen in Figure 3, these common gas discharge channels 62 are bounded on the one hand by a ceiling floor 46 that closes off the storage areas 90 at the top and on the other hand by a supporting floor 42 that closes off the storage areas 90 at the bottom. Referring to their Fig. At the left end, these common gas discharge channels 62 lead into a main gas discharge channel 64, which in turn is connected to the cooling device 132 and the conveying device 134.

[0060] Air is drawn in from the main gas discharge channel 64 by the conveying device 134, so that air is also indirectly drawn in from the common gas discharge channels 62 and thus from the storage areas 90.

[0061] The ventilation system incorporates multiple sensors, with the arrangement described below being exemplary and numerous variations being possible. Each gas outlet 60 of the storage areas 90 is assigned a temperature sensor 80, which measures the air flowing out of the storage area. The temperature sensor 80 is positioned such that the temperature value it detects is influenced exclusively or predominantly by the air flowing out of the respective storage area 90 through the gas outlet 60.

[0062] Gas analysis sensors 82 are provided in the common gas discharge channels 62, which measure the composition of the gas flowing past them. Additional common temperature sensors 83 are also provided here. The main gas discharge channel 64 also has an additional gas analysis sensor 84. Furthermore, at the end of each free area 50 bounded by the supporting floor 42 and the ceiling floors 46, another sensor 86 in the form of a thermal imaging camera 87 is provided. This thermal imaging camera 87 is oriented so that it surveys the supporting floors below four storage areas and / or the ceiling floors above four storage areas 90 along the free area 50 and can detect temperature changes here, differentiating between storage areas.

[0063] The data from all sensors 80, 82, 83, 84, 86, 87 are fed to the central control unit 120 via a conduit system (not shown), the conduits of which are preferably also arranged in the free spaces 50. The central control unit 120 can be connected to a control center 124 via a conduit 122, so that faults can be forwarded to this control center 124 if necessary. In particular, however, the control unit 120 is designed to influence the operating parameters of the storage system 10 in various ways if the sensor data indicate that this is necessary.

[0064] For example, a temperature increase at sensors 80 can indicate that a vehicle traction battery 100 is heating up significantly during charging. If the temperature increase is very high, or if neighboring sensors also report a temperature increase, this can be identified as a possible fire. Gas analysis sensors 82 and 84 can be used to determine whether an unusual concentration of gas is escaping from a vehicle traction battery 100.

[0065] As a possible measure, throttles 74, designed as flaps, can be adjusted at the ends of the common gas discharge channels 62 to increase or decrease the gas discharge from a storage area or a series of storage areas. If the throttles 72 are equipped with an actuator, it is also possible to individually increase or decrease the gas discharge from individual storage areas. Furthermore, the central control unit 120 can influence the total gas discharge from the storage areas 90 by controlling the cooling device 132 and, in particular, the conveying device 134. In combination with the aforementioned controllability of the throttles 72, 74, the ventilation can thus be individually controlled for each storage area. The central control unit can also decrease or increase the charging current supplied via the charging port 102 based on sensor data.

[0066] Not shown is a central sprinkler system or decentralized sprinkler systems, which can also be connected to the central control unit 120 and allow firefighting measures to be initiated immediately in the event of a detected fire, recognizable by certain emissions or temperature increases.

[0067] Fig. Figure 4 shows an alternative variant of the storage system 10, which differs from the design of the following features. Fig. 1 to 3 distinguishes: In addition to the common horizontal gas discharge channels 62, to which all storage areas 90 of a horizontal row are connected, a plurality of common vertical gas discharge channels 65 are provided, to which a plurality of storage areas 90 of a vertical row are connected. The common vertical gas discharge channels 65 open into a common main gas discharge channel 66.

[0068] In such a design, preferably all storage areas 90 are connected to two common gas discharge channels 62, 65, one vertical and one horizontal.

[0069] Furthermore, corresponding to the gas analysis sensors 82 and the temperature sensors 83, a sensor 86 is also assigned to each of the vertical common gas discharge channels 65, which may primarily be a gas analysis sensor and / or a temperature sensor.

[0070] This arrangement allows for the precise localization of changes in condition with a comparatively small number of sensors, namely at least the sum of the number of vertical and horizontal rows of storage areas. If values ​​indicating a fault are detected in both a vertical gas discharge channel 65 and a horizontal gas discharge channel 62, the cause is presumably to be found at the intersection of the affected vertical row and the affected horizontal row.

[0071] This precise localization allows targeted measures to be taken, such as specifically regulating the air supply or exhaust to the affected storage area by adjusting the throttles 72 and 74. If a potentially catastrophic situation is identified, such as a fire or a gas leak from one of the batteries, further measures can also be implemented based on the localization, such as, in particular, initiating a targeted extinguishing process or manually or automatically removing the affected battery from the storage area and transporting it to a safe location.

[0072] The aforementioned common vertical gas discharge channels 65 and the main gas discharge channel 66 are equipped with throttles, similar to the common horizontal gas discharge channels 62 and the main gas discharge channel 64, but not shown. These throttles are manually or automatically controllable and are located in the area of ​​openings in the back wall 26 between the bearing areas 90 on the one hand and the common vertical gas discharge channels 65 on the other, and / or between the common vertical gas discharge channels 65 and the main gas discharge channel 66. However, the channels 65 and 66 can also be designed as purely sensor channels that do not require throttles and do not serve for gas discharge to influence the bearing area, but only for the described localization. In this case, the throttles can be omitted.

Claims

[1] Stationary storage system (10) for vehicle traction batteries (100) with the following features: a. the storage system (10) has a plurality of storage areas (90) for vehicle traction batteries (100) and b. the storage areas (90) are arranged vertically on at least two levels and separated from each other by intermediate floors (40), and c. the intermediate floors (40) are at least partially designed as double floors with an upper load-bearing floor (42) and a lower ceiling floor (46), between which a free space (50) is provided, characterized by the characteristics: d. in one plane at least two storage areas (90) are arranged horizontally next to each other and separated from each other by a partition wall (24), and e. the open space (50) below or above these at least two storage areas (90) is designed as a single open space (50) without a separating partition wall, and f. in this free area (50) at least one sensor (86) is arranged which detects physical quantities of the at least two storage areas (90). [2] Stationary storage system (10) for vehicle traction batteries (100) according to claim 1 with the following additional feature: a. A gas supply channel or a gas discharge channel (62) is arranged between the ceiling floor (46) and the supporting floor (42) of the intermediate floor (40). [3] Stationary storage system (10) for vehicle traction batteries (100) with the following features: a. the storage system (10) has a plurality of storage areas (90) for vehicle traction batteries (100) and b. the storage areas (90) are arranged vertically on at least two levels and separated from each other by intermediate floors (40), and / or at least two storage areas (90) are arranged horizontally next to each other on one level and separated from each other by a partition wall (24), and c. the intermediate floors (40) are at least partially designed as double floors with an upper load-bearing floor (42) and a lower ceiling floor (46), between which a free space (50) is provided, characterized by the characteristics: d. the storage areas (90) of a horizontal or vertical series of storage areas (90) have a common gas supply channel or gas discharge channel (62, 65), and e. Each bearing area (90) is assigned an individually adjustable throttle (72) between the common gas supply channel or gas discharge channel (62) and the bearing area (90), wherein the throttle (72) is designed for manual or motor adjustment. [4] Stationary storage system (10) for vehicle traction batteries (100) with the following features: a. the storage system (10) has a plurality of storage areas (90) for vehicle traction batteries (100) and b. the storage areas (90) are arranged vertically on at least two levels and separated from each other by intermediate floors (40), and c. the intermediate floors (40) are at least partially designed as double floors with an upper load-bearing floor (42) and a lower ceiling floor (46), between which a free space (50) is provided, characterized by the characteristics: d. a gas supply channel or a gas discharge channel (62) is arranged between the ceiling floor (46) and the supporting floor (42) of the intermediate floor (40), e. several common gas supply channels or gas discharge channels (62, 65) of each of a series of storage areas (90) are connected to a main gas supply channel or main gas discharge channel (64, 66), and f. Each common gas supply channel or gas discharge channel (62) is assigned an individually adjustable throttle (74) between the common gas supply channel or gas discharge channel (62) and the main gas supply channel or main gas discharge channel (64), wherein the throttle (74) is designed for manual or motorized adjustment. [5] Stationary storage system (10) for vehicle traction batteries according to one of the preceding claims with the following additional feature: a. The storage system has an open or closed circuit within which gas extracted from a storage area (90) is at least partially returned to the storage areas (90). [6] Stationary storage system (10) for vehicle traction batteries (100) according to one of the preceding claims with the following additional feature: a. The storage areas (90) are each equipped with a gas outlet (60) in the area of ​​a support floor (42). [7] Stationary storage system (10) for vehicle traction batteries (100) according to one of the preceding claims with the following additional features: a. The storage areas (90) are each separated from adjacent storage areas (90) arranged horizontally on the same level by partition walls (24), separated from adjacent storage areas (90) arranged vertically above or below by intermediate floors (40) and bounded at the rear by a back wall (26), and b. opposite the back wall (26) the bearing areas (90) are open towards the front. [8] Stationary storage system (10) for vehicle traction batteries (100) according to one of the preceding claims with the following additional feature: a. The storage areas (90) are each assigned: - a charging port (102) for connecting the vehicle traction battery to a power supply network of the storage system (10), and / or - a data interface (104) for communication with battery-internal control units and / or sensors or for communication with receiving containers (101) for receiving vehicle traction batteries, and / or - an individual sprinkler system for extinguishing a battery fire. [9] Stationary storage system (10) for vehicle traction batteries (100) according to one of the preceding claims with the following additional features: a. the storage system (10) has a central control unit (120) which is designed to centrally receive the data from the gas sensors (80, 82, 84, 86) and possibly other sensors (86). [10] Stationary storage system (10) for vehicle traction batteries (100) according to claim 9 with the following additional features: a. the central control unit (120) is configured with at least one of the following behaviors: - In response to a heating of a vehicle traction battery in a bearing area (90), which is detected by means of a sensor (83, 86), the gas supply or gas discharge into this bearing area (90) or into a vertical or horizontal row in which this bearing area (90) is arranged is increased, and / or - in response to a heating in a storage area (90) detected by a sensor (83), or in response to the detection of a concentration of a gas in the discharged gas, detected by a sensor (80, 82, 84, 86) and which is above a limit value set for this purpose, or in response to a volume flow rate detected by a sensor and which is above or below the respective limit values ​​set for this purpose, the gas supply or gas discharge into this storage area (90) or into a vertical or horizontal row in which this storage area (90) is arranged is reduced or stopped, and / or a sprinkler system is activated. [11] Stationary storage system (10) for vehicle traction batteries (100) according to one of the preceding claims with at least one of the following additional features: a. the storage system (10) is designed as a racking system and has on a plurality of levels a plurality of storage areas (90) separated from each other by partition walls (24), and / or b. Each storage area (90) is designed to fully accommodate at least one vehicle traction battery (100) or a vehicle traction battery (100) in a designated receiving container (101), wherein the storage area (90) has minimum dimensions of 150cm x 100cm x 20cm for this purpose. [12] Stationary storage system (10) for vehicle traction batteries (100) according to one of the preceding claims with at least one of the following additional features: a. the partition walls (24), the back wall (26) and / or the intermediate floors (40) are made of a fire-resistant material.

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