System and method for automatically releasing battery modules

Abstract

Disclosed are a system and a method for automatically releasing a battery module, and more particularly, a system and a method for automatically and selectively releasing a battery module from an entire structure when a high temperature or heat generation is detected in a module unit stack structure. The system comprises: a battery module comprising at least one battery cell; a battery rack in which the battery module is held; and a battery control unit configured to perform control to automatically release the battery module from the battery rack. The battery module is fixed on the module mounting structure inclined surface of the battery rack through the module fixing device, and when a problem occurs in the battery module, the battery module is released from the battery rack along the module mounting structure inclined surface when the module fixing device operates under the control of the battery control unit.

Description

[0001] This application claims priority and benefit to Korean Patent Application No. 10-2024-0112209, filed on August 21, 2024, with the Korean Intellectual Property Office, the entire disclosure of which is incorporated herein by reference. Technical Field

[0002] This disclosure relates to a system and method for automatically releasing a battery module, and more specifically, to a system and method for automatically and selectively releasing a battery module from the entire structure when high temperature or heat is detected in the module cell stack structure. Background Technology

[0003] An ESS (Energy Storage System) has a structure in which batteries are manufactured in modules and stacked in a rack structure within a container to store energy. Building an ESS system requires anywhere from hundreds to hundreds of thousands or even millions of batteries. If any one of these batteries catches fire due to heat, the problem arises that the damage is too extensive and, despite prior detection, the fire is difficult to extinguish.

[0004] In other words, although a fire was detected inside the ESS battery and fire extinguishing material was sprayed, there is a problem: if the initial fire extinguishing fails, the fire will become a large fire because it affects the surrounding batteries connected to the burning battery. Summary of the Invention

[0005] Embodiments of this disclosure aim to provide a system and method for automatically releasing battery modules, which can safely operate a battery storage device by rapidly releasing, separating, and isolating batteries or modules that have already malfunctioned from the entire system before a fire occurs or at the onset of a fire when preset conditions are met (e.g., maintaining a temperature above 60°C for three seconds).

[0006] However, the purpose of this disclosure is not limited to the foregoing purposes, and other purposes not described herein will be apparent to those skilled in the art from the following description.

[0007] A system for automatically releasing a battery module according to an embodiment of the present disclosure includes: a battery module including at least one battery cell; a battery rack in which the battery module is held; and a battery control unit configured to perform control to automatically release the battery module from the battery rack. The battery module is secured to a module mounting structure ramp of the battery rack by a module fixing device, and when a problem occurs in the battery module, the battery module is released from the battery rack along the module mounting structure ramp as the module fixing device operates under the control of the battery control unit.

[0008] The ramp of the module mounting structure is set at an angle of 1° to 90° with respect to the horizontal axis of the battery rack.

[0009] The battery module includes sensors that sense temperature, voltage, and current, and send the sensed information to the battery control unit.

[0010] The battery module and the battery holder are magnetically connected.

[0011] The battery control unit performs control to release battery modules arranged in multiple layers sequentially, from the battery module located at the bottom layer to the battery module located at the top layer.

[0012] The battery control unit performs simultaneous release control on battery modules located in multiple layers.

[0013] The system for automatically releasing a battery module according to embodiments of the present disclosure further includes a fire extinguishing agent spraying device disposed at one end of the inclined surface of the module mounting structure.

[0014] The extinguishing agent spraying device, under the control of the battery control unit, adjusts at least one of the spray direction, spray angle, and spray distance of the extinguishing agent.

[0015] The method for automatically releasing a battery module according to an embodiment of the present disclosure includes the following steps: (a) setting up a battery module support assembly; (b) monitoring battery module status information; and (c) releasing the battery module in which the problem has occurred from the entire structure by operating the battery module support assembly based on the monitoring results.

[0016] Step (a) includes: setting the battery module on the ramp of the module mounting structure within the battery rack; and setting the module fixing device at one end of the ramp of the module mounting structure.

[0017] Step (b) includes: determining that a problem has occurred when the temperature information obtained by the temperature sensor is a preset temperature or higher, the preset temperature or higher is maintained for a preset time or longer, a difference exists between the charge / discharge voltage specification and the preset voltage, or a difference exists between the charge / discharge voltage specification and the preset voltage for a preset time or longer.

[0018] Step (c) includes: controlling the movement and release of the battery module that has malfunctioned along the ramp of the module mounting structure by operating the battery module support assembly; and spraying extinguishing agent by operating the extinguishing agent spraying device.

[0019] Step (c) includes: operating the battery module support assembly to release the battery modules sequentially from the lowest battery module in the multiple layers up to the highest battery module.

[0020] Step (c) includes: operating the battery module support assembly to simultaneously release the battery modules disposed in multiple layers.

[0021] A system for automatically releasing a battery module according to an embodiment of the present disclosure includes: a memory having a program stored therein, the program performing automatic release control on the battery module based on sensed information of the battery module; and a processor configured to execute the program. The processor performs control by operating a module fixing device disposed on one side of a ramp of a module mounting structure on which the battery module is disposed, so as to move and release the battery module along the ramp of the module mounting structure.

[0022] When the temperature information obtained by the temperature sensor is a preset temperature or higher, the preset temperature or higher is maintained for a preset time or longer, a difference exists between the charge / discharge voltage specification and the preset voltage, or the difference exists between the charge / discharge voltage specification and the preset voltage and is maintained for a preset time or longer, the processor determines that a problem has occurred and operates the module fixing device.

[0023] The processor sends control commands to the fire extinguishing agent spraying device, causing the fire extinguishing agent to be sprayed during the release of the battery module.

[0024] The processor operates the battery module fixing device, causing the battery modules set in multiple layers to be released sequentially from the battery module located at the lowest layer to the battery module located at the highest layer.

[0025] The processor operates the battery module fixing device, causing the battery modules set in multiple layers to be released simultaneously.

[0026] The processor performs change control over at least one of the order in which the battery modules are released and the direction in which the battery modules are released.

[0027] According to embodiments of this disclosure, damage to the entire system caused by fire can be minimized by selectively releasing battery modules that are detected to be hot or heated in a stacked structure with module units from the entire structure, releasing battery modules sequentially from the lowest layer to the highest layer, or releasing all battery modules simultaneously.

[0028] The effects of this disclosure are not limited to those described above, and other effects not described herein will be readily apparent to those skilled in the art from the following description. Attached Figure Description

[0029] The accompanying drawings illustrate preferred embodiments of the present disclosure and contribute to a further understanding of the technical spirit and foregoing content of the present disclosure. Therefore, this disclosure should not be construed as limited to the contents described in these drawings.

[0030] Figure 1The electrode assembly of a secondary battery is shown schematically.

[0031] Figure 2 The structure of a pouch-type secondary battery is illustrated schematically.

[0032] Figure 3 A schematic representation of the appearance of a prismatic secondary battery is shown.

[0033] Figure 4 This is a cross-sectional view of a cylindrical secondary battery.

[0034] Figure 5 A battery module stacking structure based on conventional technology is shown.

[0035] Figure 6 The structure of a system for automatically releasing a battery module according to an embodiment of the present disclosure is shown.

[0036] Figure 7 The state of a system for automatically releasing a battery module according to an embodiment of the present disclosure before the problematic module is automatically released is shown.

[0037] Figure 8 The state of a system for automatically releasing a battery module according to an embodiment of the present disclosure after the problematic module has been automatically released is shown.

[0038] Figure 9 The diagram illustrates the state of a system for automatically releasing battery modules according to an embodiment of the present disclosure before automatically releasing multiple problematic modules.

[0039] Figure 10 The state of a system for automatically releasing battery modules according to an embodiment of the present disclosure is shown after multiple problematic modules have been automatically released.

[0040] Figure 11 A method for automatically releasing a battery module according to an embodiment of the present disclosure is shown.

[0041] Figure 12 This is a block diagram illustrating a computer system for implementing a method according to an embodiment of the present disclosure.

[0042] Figure 13 This is an example diagram of a secondary battery module in which a secondary battery manufactured according to an example of the present disclosure is arranged.

[0043] Figure 14 It includes Figure 13 The diagram shows an example of a secondary battery module.

[0044] Figure 15 It includes Figure 14 The image shows a concept drawing of a vehicle with a secondary battery pack. Detailed Implementation

[0045] In the following, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. The terms or words used in this specification and claims are not to be construed as limitingly based on their general or common meaning, but rather should be interpreted as meanings and concepts consistent with the technical ideas of the present disclosure, based on the principle that the inventors may be their own lexicographers to appropriately define the concepts of the terms in order to best describe the principles of their disclosure.

[0046] The exemplary embodiments described in this specification and the constructions shown in the accompanying drawings are merely some exemplary embodiments of this disclosure and do not represent all aspects of this disclosure. Therefore, it should be understood that various equivalents and modifications may exist to replace or modify one or more of the exemplary embodiments described herein at the time of filing this application.

[0047] It will be understood that if an element or layer is described as being "on," "connected to," or "bonded to" another element or layer, it can be directly on, directly connected to, or directly bonded to said other element or layer, or one or more intermediary elements or intermediary layers may be present. When an element or layer is described as being "directly on," "directly connected to," or "directly bonded to" another element or layer, no intermediary element or intermediary layer is present. For example, if a first element is described as being "bonded" or "connected" to a second element, the first element can be directly bonded to or directly connected to the second element, or the first element can be indirectly bonded to or indirectly connected to the second element via one or more intermediary elements.

[0048] In the figures, the dimensions of various elements, layers, etc., may be exaggerated for clarity. The same reference numerals denote the same elements. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. Furthermore, if the word "may" is used to describe embodiments of this disclosure, it refers to "one or more embodiments of this disclosure." Expressions such as "at least one of..." and "any one of..." modify the entire list of elements, not individual elements within that list, if following a list of elements. When phrases such as "at least one of A, B, and C," "at least one of A, B, or C," "at least one selected from the group consisting of A, B, and C," or "at least one selected from A, B, and C" are used to specify a list of elements A, B, and C, the phrase may refer to any suitable combination (or subset) of A, B, and C, as well as all suitable combinations (or subsets), such as A, B, C, A and B, A and C, B and C, or A and B and C. As used herein, the term “use” and its variations may be considered synonymous with the term “utilize” and its variations, respectively. As used herein, the terms “basically,” “about,” and similar terms are used as approximate terms rather than terms of degree and are intended to explain the inherent variations in measured or calculated values ​​that will be recognized by one of ordinary skill in the art.

[0049] It will be understood that although the terms first, second, third, etc., may be used herein to describe various elements, components, regions, layers, and / or portions, these elements, components, regions, layers, and / or portions should not be limited by these terms. These terms are used to distinguish one element, component, region, layer, or portion from another element, component, region, layer, or portion. Therefore, without departing from the teachings of the exemplary embodiments, the first element, first component, first region, first layer, or first portion discussed herein may be referred to as a second element, second component, second region, second layer, or second portion.

[0050] For ease of description, spatial relative terms such as “below,” “under,” “down,” “above,” and “above” are used herein to describe the relationship between one element or feature and another element(s) shown in the figures. It will be understood that, in addition to the orientation depicted in the figures, the spatial relative terms are also intended to cover different orientations of the device during use or operation. For example, if the device in the figures is flipped, an element described as “below” or “under” other elements or features will subsequently be oriented “above” or “above” said other elements or features. Thus, the term “below” can cover both above and below orientations. The device may be otherwise oriented (rotated 90 degrees or in other orientations), and the spatial relative descriptive terms used herein should be interpreted accordingly.

[0051] The terminology used herein is for the purpose of describing embodiments of this disclosure and is not intended to be limiting of this disclosure. As used herein, unless the context clearly indicates otherwise, the singular forms “a” and “an” are also intended to include the plural forms. It will also be understood that if the terms “comprising,” “including,” and / or variations thereof are used in this specification, it indicates the presence of the stated features, integers, steps, operations, elements, and / or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0052] Furthermore, any numerical range disclosed and / or described herein is intended to include all subranges containing the same numerical precision within the described range. For example, the range “1.0 to 10.0” is intended to include all subranges between the described minimum value of 1.0 and the described maximum value of 10.0 (and including both the described minimum value of 1.0 and the described maximum value of 10.0), i.e., having a minimum value equal to or greater than 1.0 and a maximum value equal to or less than 10.0, such as 2.4 to 7.6. Any maximum numerical limit described herein is intended to include all lower numerical limits contained therein, and any minimum numerical limit described in this specification is intended to include all higher numerical limits contained therein. Therefore, the applicant reserves the right to amend this specification and the claims to expressly describe any subranges contained within the range expressly described herein. All such ranges are intended inherently to be described in this specification such that modifications to expressly describe any such subrange are within the scope of this disclosure.

[0053] Referring to two compared elements, features, etc., as “identical” can mean that they are “substantially identical.” Therefore, the phrase “substantially identical” can include cases with deviations considered low in the art (e.g., 5% or less). Furthermore, if a parameter is said to be uniform in a given region, it can mean that it is uniform in terms of its mean.

[0054] Throughout this specification, unless otherwise stated, each element may be singular or plural.

[0055] Arranging any element "above (or below)" or "on (below)" another element can mean that the arbitrary element can contact the upper (or lower) surface of the element, and that the other element can also be placed between the element and the arbitrary element located on (or below) the element.

[0056] Furthermore, it will be understood that if a component is referred to as “linked,” “combined,” or “connected” to another component, then these components can be directly “combined,” “linked,” or “connected” to each other, or another component can be “placed” between these components.

[0057] Throughout this specification, unless otherwise stated, if "A and / or B" is stated, it means A, B, or A and B. That is, "and / or" includes any or all combinations of the listed items. When "C to D" is stated, unless otherwise stated, it means C or greater and D or less.

[0058] When the terms “about” or “substantially” are used in conjunction with numerical values ​​in this specification, it means that the relevant numerical value includes a tolerance of ±10% around the stated value. When a range is specified, the range includes all values ​​within that range, such as increments of 0.1%.

[0059] The terminology used herein is for the purpose of describing exemplary embodiments of this disclosure and is not intended to limit the disclosure.

[0060] If the burning module is fixed to the frame structure, there is a problem that it is difficult to separate only the burning module. That is, there is a problem that because the module and the frame are connected by bolts and nuts, it is difficult to separate the burning module in a short time, and because the wires are also connected to the module by bolts and nuts, it is difficult to easily separate the wires used for high voltage and high current.

[0061] Figure 1 The electrode assembly is schematically shown within the casing of the secondary battery.

[0062] Electrode assembly 10 can be formed by winding or stacking a first electrode plate 11, a diaphragm 12, and a second electrode plate 13, which are formed as a sheet or film. When electrode assembly 10 is a wound stack, the winding axis can be parallel to the longitudinal direction of the housing. In other example embodiments, electrode assembly 10 can be stacked rather than wound, and the shape of electrode assembly 10 is not limited in the examples of this disclosure. Furthermore, electrode assembly 10 can be or include Z-stacked electrode assemblies, in which positive and negative electrode plates are inserted into opposite sides of a diaphragm, which is then bent into a Z-stack. Additionally, one or more electrode assemblies can be stacked such that the long sides of the electrode assemblies are adjacent to each other and housed in a housing, and the number of electrode assemblies in the housing is not limited in the examples of this disclosure. The first electrode plate 11 of the electrode assembly can serve as a negative electrode, and the second electrode plate 13 can serve as a positive electrode. In the examples, the reverse is also possible.

[0063] The first electrode plate 11 can be formed by coating a first electrode active material (such as graphite or carbon) onto a first electrode current collector formed of a metal foil (such as copper, copper alloy, nickel, or nickel alloy). The first electrode plate 11 may include a first electrode tab 14 (e.g., a first uncoated portion), which is or includes an area uncoated with the first electrode active material. The first electrode tab 14 may be connected to an external first terminal (not shown). In some example embodiments, when manufacturing the first electrode plate 11, the first electrode tab 14 may be formed by being pre-cut to protrude to one side of the electrode assembly 10, or the first electrode tab 14 may protrude much further than the diaphragm 12 toward one side of the electrode assembly 10 without separate cutting, for example, protruding further than or beyond the diaphragm 12.

[0064] The second electrode plate 13 can be formed by coating a second electrode active material (such as a transition metal oxide) onto a second electrode current collector formed of or comprising a metal foil (such as aluminum or an aluminum alloy). The second electrode plate 13 may include a second electrode tab 15 (e.g., a second uncoated portion), which is or includes an area uncoated with the second electrode active material. The second electrode tab 15 may be connected to an external second terminal (not shown). In some example embodiments, when manufacturing the second electrode plate 13, the second electrode tab 15 may be formed by pre-cutting it to protrude to the other side (e.g., the opposite side) of the electrode assembly 10, or the second electrode plate 13 may protrude much further than the diaphragm 12 to the other side of the electrode assembly without being separately cut, for example, protruding further than or beyond the diaphragm 12.

[0065] In some example embodiments, the first electrode contact 14 may be located on the left side of the electrode assembly 10, and the second electrode contact 15 may be located on the right side of the electrode assembly 10. In other example embodiments, the first electrode contact 14 and the second electrode contact 15 may be located on one side of the electrode assembly 10 in the same direction.

[0066] For ease of description, the left and right sides are defined as follows: Figure 1 The electrode assembly 10 is defined by a central orientation, and its position can be changed when the secondary battery is rotated left and right or up and down.

[0067] The diaphragm 12 prevents or substantially prevents short circuits between the first electrode plate 11 and the second electrode plate 13, while allowing lithium ions to move between them. The diaphragm 12 may be made of, for example, a polyethylene membrane, a polypropylene membrane, a polyethylene-polypropylene membrane, etc., or may include, for example, a polyethylene membrane, a polypropylene membrane, a polyethylene-polypropylene membrane, etc.

[0068] In some example embodiments, the electrode assembly 10 may be housed together with the electrolyte in a housing (not shown). In the case of a pouch cell, the electrode assembly 10 may be... Figure 1 The form shown is housed in a bag made of or comprising a flexible material. In the case of a prismatic secondary battery, the electrode assembly 10 can be... Figure 1 The form shown is housed in a prismatic metal shell.

[0069] Figure 2 A pouch-type secondary battery is shown schematically.

[0070] The pouch-type secondary battery includes an electrode assembly 10 and a pouch 20, wherein the pouch 20 houses or contains the electrode assembly 10.

[0071] Electrode assembly 10 can be with Figure 1 The electrode assembly 10 shown is identical. The first electrode tab 14 and the second electrode tab 15 of the electrode assembly 10 can be electrically connected to the respective external first terminal lead 16 and second terminal lead 17 by means of attachment, such as welding or other methods that maintain conductivity therebetween. At least a portion of each of the first terminal lead 16 and the second terminal lead 17 can be attached or covered with a tab film 18 to insulate it from the bag 20.

[0072] The bag 20 can be sealed by bringing its sealing portions 21 at its edges into contact with each other, while simultaneously accommodating or containing the electrode assembly 10 therein. In this case, the seal can be achieved using a bonding membrane 18 inserted between the sealing portions 21. The sealing portions 21 of the bag 20 can be made of or comprise a heat-melting material that typically has weak adhesion to metals. Therefore, it can be welded to the bag 20 by inserting a thin bonding membrane 18 between the sealing portions 21.

[0073] Figure 3 A schematic representation of the appearance of a prismatic secondary battery is shown.

[0074] The prismatic housing 51 defines the overall appearance of the prismatic secondary battery and may be made of or comprise conductive metals such as aluminum, aluminum alloys, or nickel-plated steel. Furthermore, the housing 51 provides space for accommodating or containing the electrode assembly 10 therein.

[0075] The cover assembly 60 may include a cover plate 61 that covers an opening in the housing 51, and the housing 51 and the cover plate 61 may be made of or comprise a conductive material. The first terminal 63 and the second terminal 62 may be electrically connected inside the housing 51. Figure 1 and Figure 2The electrode assembly 10 shown has a first electrode connector 14 and a second electrode connector 15, which can be mounted to protrude outward through the cover plate 61. The first current collector and the second current collector in the housing 51 can be connected to the first terminal 63 and the second terminal 62, respectively, via terminal pins 67.

[0076] The cover plate 61 may be equipped with or include an electrolyte inlet 64 and an vent 66, the electrolyte inlet 64 being configured to house a sealing plug therein, and the vent 66 including a recess 65. The vent 66 is configured to discharge any gases generated inside the secondary battery.

[0077] Figure 4 This is a cross-sectional view of a cylindrical secondary battery.

[0078] The cylindrical secondary battery includes an electrode assembly 30, a housing 59 therein containing the electrode assembly 30 and an electrolyte, a cover assembly 50 connected to an opening in the housing to seal the housing, and an insulating plate 37 located inside the housing between the electrode assembly 30 and the cover assembly 50.

[0079] The electrode assembly 30 may include a diaphragm 32 between the first electrode 33 and the second electrode 31, and the electrode assembly 30 may be wound into an electrode core form.

[0080] The first electrode 33 may include a first substrate and a first active material layer located on the first substrate. The first lead tab 35 may extend outward from a first uncoated portion of the first substrate where the first active material layer is not positioned, and may be electrically connected to the cover assembly 50.

[0081] The second electrode 31 may include a second substrate and a second active material layer located on the second substrate. A second lead tab 34 may extend outward from a second uncoated portion of the second substrate where the second active material layer is not positioned, and may be electrically connected to the housing. The first lead tab 35 and the second lead tab 34 may extend in opposite directions relative to each other.

[0082] The first electrode 33 can be a positive electrode. In this case, the first substrate can be made of, for example, aluminum foil or include, for example, aluminum foil, and the first active material layer can include, for example, a transition metal oxide. The second electrode 31 can be a negative electrode. In this case, the second substrate can be made of, for example, copper foil or nickel foil or include, for example, copper foil or nickel foil, and the second active material layer can include, for example, graphite.

[0083] The separator 32 can reduce or prevent short circuits between the first electrode 33 and the second electrode 31, while allowing lithium ions to move between them. The separator 32 can be made of at least one of, for example, a polyethylene membrane, a polypropylene membrane, a polyethylene-polypropylene membrane, etc., or include at least one of, for example, a polyethylene membrane, a polypropylene membrane, a polyethylene-polypropylene membrane, etc.

[0084] The housing houses or contains the electrode assembly 30 and the electrolyte, and together with the cover assembly 50, substantially forms the appearance of a secondary battery. The housing may have a generally cylindrical body portion 42 and a bottom portion 41 connected to one side of the body portion 42. An inwardly deformed rolled edge portion 43 may be formed in the body portion 42, and an inwardly bent crimp portion 45 may be formed at the open end of the body portion 42.

[0085] The rolled edge 43 can reduce or prevent movement of the electrode assembly 30 inside the housing and facilitates the placement of the gasket 44 and the cover assembly 50. The crimping portion 45 can securely fix the cover assembly 50 by pressing the edge of the cover assembly 50 against the gasket 44. For example, the housing can be formed of or comprise nickel-plated iron.

[0086] The cover assembly 50 can be secured to the inside of the crimp portion 45 by a gasket 44 to seal the housing. The cover assembly 50 may include an upper cover, a safety vent, a lower cover, an insulating member, and a sub-plate, but is not limited to this example and can be modified in various ways.

[0087] The top cover may be located at the very top of the cover assembly 50. The top cover may include a terminal portion that convexly projects upward and connects to an external circuit, and an outlet for venting gas may be located around the terminal portion.

[0088] The safety vent may be located below the top cover. The safety vent may include a downwardly projecting protrusion that is connected to the subplate and at least one recess located around the protrusion.

[0089] When gas is generated due to overcharging or abnormal operation of the secondary battery, the protrusion can deform upwards under pressure and separate from the sub-board, while the safety vent can be cut off along the notch. The cut safety vent can prevent or stop the secondary battery from exploding by releasing the gas to the outside.

[0090] The lower cover may be located below the safety vent. The lower cover may have a first opening for exposing the protrusion of the safety vent and a second opening for venting gas. An insulating member may be located between the safety vent and the lower cover to insulate the safety vent from the lower cover.

[0091] The sub-plate can be located below the lower cover. The sub-plate can be fixed to the lower surface of the lower cover to block the first opening of the lower cover, and the protrusion of the safety vent can be fixed to the sub-plate. The first lead connector 35 pulled out from the electrode assembly 30 can be fixed to the sub-plate. Therefore, the upper cover, the safety vent, the lower cover, and the sub-plate can be electrically connected to the first electrode 33 of the electrode assembly 30.

[0092] The insulating plate 37 can be located below the rolled edge 43 to contact the electrode assembly 30, and can be provided with a tab opening for pulling out the first lead tab 35. The cover assembly 50, which is electrically connected to the first electrode 33 via the first lead tab 35, can face the electrode assembly 30 with the insulating plate 37 positioned between the cover assembly 50 and the electrode assembly 30, and can maintain an insulated state from the electrode assembly 30 by the insulating plate 37. Alternatively, another insulating plate 36 can be included for insulation between the electrode assembly 30 and the bottom portion 41 of the housing.

[0093] Figure 5 A battery module stacking structure based on conventional technology is shown.

[0094] According to conventional technology, the battery module 10c is stacked on the structure of the battery rack 20c. The surface on which the battery module 10c is placed is a flat bottom surface.

[0095] The problem with conventional technology is that when heat is generated in any cell of an ESS system and turns into fire, the extent of damage increases because the fire affects the surrounding cells connected to the burning cell.

[0096] Figure 6 The structure of a system for automatically releasing a battery module according to an embodiment of the present disclosure is shown. Figure 7 The state of a system for automatically releasing a battery module according to an embodiment of the present disclosure before the problematic module is automatically released is shown. Figure 8 The state of a system for automatically releasing a battery module according to an embodiment of the present disclosure after the problematic module has been automatically released is shown.

[0097] In a system for automatically releasing a battery module according to an embodiment of the present disclosure, the battery module 100 may be disposed on the ramp 210 of the module mounting structure within the battery holder 200. The module fixing device 300 can fix the battery module 100 to the ramp of the module mounting structure during normal operation.

[0098] When the module fixing device 300 is operated, the module fixing device 300 can be rotated to the lower part of the inclined surface 210 of the module mounting structure, can be operated by a hinge mechanism, and can be disengaged due to magnetic changes. However, this disclosure is not limited to the specific operating method of the module fixing device 300.

[0099] In addition, the module mounting structure ramp 210 may further include a disengagement aid, such as a guide roller or roller.

[0100] When the module fixing device 310 in the corresponding problem area is unlocked due to the occurrence of the problem, the battery module 110 supported by the module fixing device 310 can automatically separate and release along the inclined surface 210 of the module mounting structure by gravity.

[0101] The module fixing device 310 can be disposed on one side of the inclined surface 210 of the module mounting structure, and can immediately separate and release the corresponding battery module 110 in the event of high temperature or fire. The inclined surface 210 of the module mounting structure can be configured to form a preset angle (e.g., between 1° and 90° or between 35° and 70°) relative to the horizontal axis of the battery rack 200.

[0102] The height of the ramp 210 of the module mounting structure can be controlled by a rack control device (not shown). An abnormal signal can be sent to the rack battery control unit (BCU) when the temperature information obtained by the temperature sensor is a preset temperature (e.g., 60°C) or higher, and the preset temperature or higher is maintained for a preset time or longer; when a difference occurs between the charge / discharge voltage specification and the preset voltage; or when a difference between the charge / discharge voltage specification and the preset voltage (e.g., a difference of 0.1V) is maintained for a preset time (e.g., 3 seconds) or longer. The rack BCU can release the battery module 110, in which the problem has occurred, to the outside of the battery rack 200 by sending a control command to unlock the module mounting device 310.

[0103] The rack BCU can send a control command to unlock the module fixing device at one end of the inclined surface of the module mounting structure on which the battery module that has the problem is mounted. It can also send a control command to unlock the module fixing devices sequentially, so that the battery modules in multiple layers are released sequentially from the battery module in the lowest layer to the battery module in the highest layer. Furthermore, it can send a control command to unlock all the module fixing devices at the same time, so that the battery modules in multiple layers are released simultaneously.

[0104] The connector can be magnetically attached to the wires connected to the battery module 110 and the battery holder 20. The connector can detach as the battery module 110 slides downwards along the inclined surface 210 of the module mounting structure under gravity. That is, when the locking state of the module fixing device 310 is released and the battery module 110 moves along the inclined surface 210 of the module mounting structure, the connector magnetically attached to the battery module 110 separates from the battery holder 200.

[0105] A battery module 110 that has been released from the battery rack 200 may catch fire, but if the battery module 110 itself catches fire, and the fire generated in the battery module 110 can be extinguished by the administrator. Therefore, damage to the entire system can be minimized.

[0106] Figure 9 The diagram illustrates the state of a system for automatically releasing battery modules according to an embodiment of the present disclosure before automatically releasing multiple problematic modules. Figure 10 The state of a system for automatically releasing battery modules according to an embodiment of the present disclosure is shown after multiple problematic modules have been automatically released.

[0107] According to embodiments of this disclosure, battery modules 110, 120, and 130 can be disposed on the inclined surface 210 of the module mounting structure. Fire extinguishing agent spraying devices 410, 420, and 430 are disposed at one end of the area where the battery modules 110, 120, and 130 are disposed.

[0108] The fire extinguishing agent spraying devices 410, 420, and 430 can be positioned on the opposite surface (i.e., the second surface) of the module fixing device 310 on the first surface, facing outwards towards the frame. As another example, the fire extinguishing agent spraying devices 410, 420, and 430 can be positioned above the area where the battery modules 110, 120, and 130 are installed.

[0109] The extinguishing agent spraying devices 410, 420, and 430 can adjust at least one of the spraying direction, spraying angle, and spraying distance of the extinguishing agent under the control of the frame BCU.

[0110] The fire extinguishing agent spraying devices 410, 420, and 430 can spray fire extinguishing agent toward the area where the battery is located from the moment the module fixing device 310 is operated to a preset first moment under the control of the rack BCU. They can also spray fire extinguishing agent along the direction of battery module detachment (i.e., the direction of battery module detachment along the inclined surface of the module mounting structure) by rotating the direction of fire extinguishing agent spraying from the preset first moment to a preset second moment under the control of the rack BCU.

[0111] As another example, the fire extinguishing agent spraying devices 410, 420, and 430 can spray fire extinguishing agent at a first spray angle toward the current area where the battery is installed from the moment the module fixing device 310 is operated to a preset third moment under the control of the rack BCU, and can spray fire extinguishing agent at a second spray angle along the direction of battery module detachment (i.e., the direction of battery module detachment along the inclined surface of the module mounting structure) from a preset third moment to a preset fourth moment under the control of the rack BCU (in this case, the first moment and the third moment can be adjusted to be the same moment or different moments, and the second moment and the fourth moment can be adjusted to be the same moment or different moments).

[0112] From another perspective, the fire extinguishing agent spraying devices 410, 420, and 430 can spray fire extinguishing agent at a first spray distance toward the current area where the battery is installed from the moment the module fixing device 310 is operated until a preset fifth moment, under the control of the rack BCU. They can also spray fire extinguishing agent at a second spray distance along the direction of battery module detachment (i.e., the direction of battery module detachment along the inclined surface of the module mounting structure) from the preset fifth moment to a preset sixth moment. (In this case, the fifth moment can be adjusted to be the same as or different from the first or third moment, and the sixth moment can be adjusted to be the same as or different from the second or fourth moment.)

[0113] When a problem is determined to have occurred in the first battery module 110 and the second battery module 120 through temperature detection and the occurrence of an event, the locking of the module fixing devices 310 that support the first battery module 110 and the second battery module 120, as described herein, can be released (i.e., the locking of the module fixing devices 310 that support the first battery module 110 and the second battery module 120, as described herein, can be released due to the operation of the module fixing devices). Therefore, the first battery module 110 and the second battery module 120 can be automatically separated and released from the entire structure along the inclined surface 210 of the module mounting structure, respectively.

[0114] At this time, in response to temperature detection and the occurrence of an event, the first extinguishing agent spraying device 410 and the second extinguishing agent spraying device 420 can be operated and spray extinguishing agent toward the first battery module 110 and the second battery module 120 in which a problem has occurred.

[0115] According to embodiments of this disclosure, when an abnormal state is detected in multiple battery modules, as described herein, the order and direction of releasing multiple battery modules can be controlled. That is, based on the analysis results of changes in the progression of sensing data satisfying preset conditions, multiple battery modules can be released simultaneously, or multiple battery modules can be automatically released by assigning priorities to them. Furthermore, the battery modules released from the entire system may be in a state where they have begun to ignite, or may be in a state where they are close to ignition. Preferably, the released battery modules are isolated from each other as much as possible. Multiple battery modules can be controlled such that they are released differentially by rotating the direction of release relative to the horizontal axis at a preset angle or greater, rather than in a single direction. Furthermore, multiple battery modules can be controlled such that each battery module in which a problem has occurred is released substantially simultaneously in a single direction, with some battery modules being selectively and immediately released in a preset single direction based on the analysis results of changes in the progression of sensing data. It is possible to control some other battery modules (e.g., battery modules that are close to high temperature and heat state, such as when there is no immediate fire hazard in the battery module, or even if no problem occurs in the battery module, but as described later, battery modules near the problem area are automatically separated and released in advance), so that some other battery modules are released by rotating the orientation of these other battery modules relative to the horizontal axis by a preset angle or greater, in order to prevent some other battery modules from being affected by the fire of another adjacent battery module.

[0116] In addition, it can automatically separate and release a preset number of battery modules in the area close to the adjacent battery module even when the preset conditions are not met, instead of simply determining to automatically separate and release the corresponding battery modules when the preset conditions are met.

[0117] Figure 11 A method for automatically releasing a battery module according to an embodiment of the present disclosure is shown.

[0118] The method for automatically releasing a battery module according to embodiments of the present disclosure may include step S710 of setting up a battery module support assembly, step S720 of monitoring battery module status information, and step S730 of releasing the battery module in which the problem has occurred from the entire structure by operating the battery module support assembly.

[0119] In step S710, the battery module can be mounted on the inclined surface of the module mounting structure within the battery rack. The module fixing device can be located at one end of the inclined surface of the module mounting structure.

[0120] The module securing device can hold the battery module in place during normal operation by supporting it. Connectors are attached to the wires that connect to the battery module and battery holder via magnets.

[0121] In step S720, it is checked whether the temperature information obtained by the temperature sensor is a preset temperature (e.g., 60°C) or a higher temperature, whether the preset temperature or a higher temperature is maintained for a preset time or longer, whether there is a difference between the charge / discharge voltage specification and the preset voltage, or whether the difference between the charge / discharge voltage specification and the preset voltage (e.g., a difference of 0.1V) is maintained for a preset time (e.g., 3 seconds) or longer.

[0122] When a problem is determined to have occurred in the battery module in step S720, in step S730, the battery module with the problem can be controlled by sending a control command to unlock the module fixing device, causing the battery module to move along the inclined surface of the module mounting structure and be released to the outside of the battery holder. The battery module with the problem can slide downwards along the inclined surface of the module mounting structure, thus disengaging the connectors of the wires connected to the battery module and the battery holder via magnets.

[0123] In step S730, the fire extinguishing agent spraying device can be operated to spray fire extinguishing agent toward the current area where the battery module was installed or toward the area after the battery module has been detached during the process of the battery module detaching.

[0124] According to embodiments of this disclosure, in step S730, the order and direction of releasing multiple battery modules can be changed and controlled. Based on the analysis results of changes in the progress of sensing data that meet preset conditions, multiple battery modules can be released simultaneously, or multiple battery modules can be released automatically by assigning priorities to them.

[0125] According to embodiments of this disclosure, when it is determined that multiple battery modules need to be released, in step S730, the angles of releasing the multiple battery modules can be controlled differently by rotating the direction of releasing the multiple battery modules at a preset angle or greater relative to the horizontal axis instead of a single direction. In this case, each battery module that has experienced a problem can be released quickly and simultaneously in a single direction, but some battery modules can be selectively released immediately in a preset single direction based on the analysis results of changes in the progress of sensing data. Furthermore, the angles of releasing the multiple battery modules can be adjusted differently so that some other battery modules (e.g., battery modules that are close to high temperature and heat state, such as when there is no immediate fire hazard in the battery module, or even if no problem has occurred in the battery module, but as described later, battery modules near the problem area are automatically separated and released in advance) are not affected by the fire of another adjacent battery module after being detached.

[0126] Figure 12 This is a block diagram illustrating a computer system for implementing a method according to an embodiment of the present disclosure.

[0127] Reference Figure 12 The computer system 1300 may include at least one of a processor 1310, a memory 1330, an input interface device 1350, an output interface device 1360, and a storage device 1340, which communicate with each other via a bus 1370. The computer system 1300 may also include a communication device 1320 connected to a network. The processor 1310 may be a central processing unit (CPU) or a semiconductor device that executes instructions stored in the memory 1330 or the storage device 1340. The memory 1330 and the storage device 1340 may each include various forms of volatile or non-volatile storage media. For example, the memory may include read-only memory (ROM) and random access memory (RAM). In embodiments of this disclosure, the memory may be located inside or outside the processor, and the memory may be connected to the processor by various known means. The memory may be various forms of volatile or non-volatile storage media, and may include, for example, read-only memory (ROM) or random access memory (RAM).

[0128] A system for automatically releasing a battery module according to an embodiment of the present disclosure includes a memory 1330 storing a program for performing automatic release control on the battery module based on sensed information of the battery module, and a processor 1310 executing the program. The processor 1310 controls the battery module to move along the inclined surface of the module mounting structure and be removed by operating a module fixing device disposed on one side of the inclined surface of the module mounting structure on which the battery module is disposed.

[0129] When the temperature information obtained by the temperature sensor is a preset temperature or a higher temperature, the preset temperature or a higher temperature is maintained for a preset time or longer, a difference occurs between the charge / discharge voltage specification and the preset voltage, or the difference between the charge / discharge voltage specification and the preset voltage is maintained for a preset time or longer, the processor 1310 operates the module fixing device by determining that a problem has occurred.

[0130] The processor 1310 sends a control command to the fire extinguishing agent spraying device, causing the fire extinguishing agent to be sprayed during the release of the battery module.

[0131] When controlling the release of multiple battery modules, the processor 1310 performs change control on at least one of the order in which the multiple battery modules are released and the direction in which the multiple battery modules are released.

[0132] Therefore, embodiments of this disclosure can be implemented as methods in a computer, or as a non-transitory computer-readable medium in which computer-executable instructions are stored. In embodiments, when executed by a processor, the computer-readable instructions can perform methods according to at least one aspect of this document.

[0133] The communication device 1320 can send or receive wired or wireless signals.

[0134] Furthermore, the methods according to embodiments of this disclosure can be implemented in the form of program instructions that can be executed by various computer devices and can be recorded on a computer-readable medium.

[0135] Computer-readable media may include program instructions, data files, and data structures, individually or in combination. Program instructions recorded on a computer-readable medium may be specifically designed and constructed for embodiments of this disclosure, or may be known and available to those skilled in the art of computer software. A computer-readable medium may include hardware means configured to store and execute program instructions. For example, a computer-readable medium may include magnetic media such as hard disks, floppy disks, and magnetic tapes; optical media such as CD-ROMs and DVDs; and magneto-optical media such as optical-floppy disks, ROMs, RAMs, and flash memory. Program instructions may include not only machine code generated by a compiler, but also high-level language code executable by a computer through an interpreter.

[0136] In the following sections, any materials that can be used in secondary batteries according to examples of this disclosure will be described.

[0137] As the positive electrode active material, compounds capable of reversibly inserting / deintercalating lithium (e.g., lithiation intercalation compounds) can be used. For example, at least one of the composite oxides of lithium with at least one of the metals such as cobalt, manganese, nickel, and combinations thereof can be used.

[0138] The composite oxide can be or includes lithium transition metal composite oxides, and examples of such composite oxides can include at least one of lithium nickel oxides, lithium cobalt oxides, lithium manganese oxides, lithium iron phosphate compounds, cobalt-free lithium nickel manganese oxides, and combinations thereof.

[0139] As an example, a compound represented by at least any of the following formulas can be used: Li a A 1-b X b O 2-c D c (0.90≤a≤1.8, 0≤b≤0.5, 0≤c≤0.05); Li a Mn 2-b X b O 4-c D c (0.90≤a≤1.8, 0≤b≤0.5, 0≤c≤0.05); Li a Ni 1-b-c Co b X c O 2-α D α (0.90≤a≤1.8, 0≤b≤0.5, 0≤c≤0.5, 0<α<2); Li a Ni 1-b- c Mn b X c O 2-α D α (0.90≤a≤1.8, 0≤b≤0.5, 0≤c≤0.5, 0<α<2); Li a Ni b Co c L 1 d G e O2 (0.90≤a≤1.8, 0≤b≤0.9, 0≤c≤0.5, 0≤d≤0.5, 0≤e≤0.1); Li a NiG b O2 (0.90≤a≤1.8, 0.001≤b≤0.1); Li a CoG b O2 (0.90≤a≤1.8, 0.001≤b≤0.1); Li a Mn 1-b G b O2 (0.90≤a≤1.8, 0.001≤b≤0.1); Li a Mn2G b O4 (0.90≤a≤1.8, 0.001≤b≤0.1); Li aMn 1-g G g PO4 (0.90 ≤ a ≤ 1.8, 0 ≤ g ≤ 0.5); Li (3-f) Fe2(PO4)3 (0 ≤ f ≤ 2); and Li a FePO4 (0.90 ≤ a ≤ 1.8).

[0140] In the formula herein: A is or includes at least Ni, Co, Mn or a combination thereof; X is or includes at least Al, Ni, Co, Mn, Cr, Fe, Mg, Sr, V, rare earth elements or a combination thereof; D is or includes at least O, F, S, P or a combination thereof; G is or includes at least Al, Cr, Mn, Fe, Mg, La, Ce, Sr, V or a combination thereof; and L 1 is or includes at least Mn, Al or a combination thereof.

[0141] The positive electrode for a lithium secondary battery may include a current collector and a positive electrode active material layer formed on the current collector. The positive electrode active material layer may include a positive electrode active material, and may further include a binder and / or a conductive material.

[0142] Based on 100 wt% of the positive electrode active material layer, the content of the positive electrode active material is in the range of about 90 wt% to about 99 wt%, and based on 100 wt% of the positive electrode active material layer, the contents of the binder and the conductive material are each in the range of about 0.5 wt% to about 5 wt%.

[0143] The current collector may be or include aluminum (Al), but is not limited thereto.

[0144] The negative electrode active material may include at least one of a material capable of reversibly intercalating / deintercalating lithium ions, lithium metal, an alloy of lithium metal, a material capable of doping and dedoping lithium, and a transition metal oxide.

[0145] The material capable of reversibly intercalating / deintercalating lithium ions may be or include a carbon-based negative electrode active material, and the carbon-based negative electrode active material may at least include, for example, crystalline carbon, amorphous carbon or a combination thereof. Examples of crystalline carbon may include graphite, such as natural graphite or artificial graphite, and examples of amorphous carbon may include at least one of soft carbon, hard carbon, pitch carbide, mesophase pitch carbide, sintered coke, etc.

[0146] A Si-based negative electrode active material or a Sn-based negative electrode active material may be used as the material capable of doping and dedoping lithium. The Si-based negative electrode active material may at least be or include silicon, a silicon-carbon composite, SiO x (0 < x ≤ 2), a Si-based alloy or a combination thereof.

[0147] Silicon-carbon composites can be or include composites of silicon and amorphous carbon. According to one example embodiment, the silicon-carbon composite can be in the form of silicon particles and amorphous carbon coated on the surface of the silicon particles.

[0148] Silicon-carbon composites may also include crystalline carbon. For example, a silicon-carbon composite may include a core comprising crystalline carbon and silicon particles, and an amorphous carbon coating layer on the surface of the core.

[0149] The negative electrode for a lithium secondary battery may include a current collector and a layer of negative electrode active material disposed on the current collector. The negative electrode active material layer may include a negative electrode active material, and may also include a binder and / or a conductive material.

[0150] For example, the negative electrode active material layer may include about 90 wt% to about 99 wt% of negative electrode active material, about 0.5 wt% to about 5 wt% of binder, and about 0 wt% to about 5 wt% of conductive material.

[0151] Non-aqueous adhesives, aqueous adhesives, dry adhesives, or combinations thereof can be used as adhesives. When an aqueous adhesive is used as the negative electrode adhesive, it may further include a cellulose compound capable of imparting viscosity.

[0152] As the negative electrode current collector, at least one of copper foil, nickel foil, stainless steel foil, titanium foil, nickel foam, copper foam, a polymer substrate coated with conductive metal, and combinations thereof can be used.

[0153] Electrolytes used in lithium secondary batteries may include non-aqueous organic solvents and lithium salts.

[0154] Non-aqueous organic solvents can serve as a medium through which ions participating in the electrochemical reactions of a battery can move.

[0155] Non-aqueous organic solvents may be at least or include carbonate solvents, ester solvents, ether solvents, ketone solvents, alcohol solvents, and aprotic solvents, and may be used alone or in combination of two or more.

[0156] Depending on the type of lithium secondary battery, a separator may be present between the first electrode plate (e.g., the negative electrode) and the second electrode plate (e.g., the positive electrode). As the separator, at least polyethylene, polypropylene, polyvinylidene fluoride, or multilayer films of two or more layers thereof can be used.

[0157] The diaphragm may include a porous substrate and a coating layer on one or both surfaces of the porous substrate, the coating layer including organic materials, inorganic materials or combinations thereof.

[0158] Organic materials may include polymers such as polyvinylidene fluoride or (meth)acrylic acid polymers.

[0159] Inorganic materials may include, but are not limited to, inorganic particles such as at least one of Al2O3, SiO2, TiO2, SnO2, CeO2, MgO, NiO, CaO, GaO, ZnO, ZrO2, Y2O3, SrTiO3, BaTiO3, Mg(OH)2, boehmite, and combinations thereof.

[0160] Organic and inorganic materials can be mixed in a single coating layer or can be layered together with coating layers containing organic materials and coating layers containing inorganic materials.

[0161] Figure 13 This is an illustration of a secondary battery module in which secondary batteries manufactured according to an example of this disclosure are arranged. As the capacity of secondary batteries used to power electric vehicles and the like increases, secondary battery modules can be manufactured by arranging and connecting multiple secondary batteries laterally and / or longitudinally. Multiple secondary batteries can be arranged in a space defined by a pair of facing end plates 68a, 68b and a pair of facing side plates 69a, 69b. The arrangement (orientation) and number of secondary batteries can be appropriately designed to obtain desired voltage and current specifications.

[0162] Figure 14 This is a schematic illustration of the configuration of a battery pack 70 according to an exemplary embodiment of the present disclosure. (Refer to...) Figure 14 The battery pack 70 may include components to which each battery is electrically connected, as well as a housing that houses the components. In the accompanying drawings, for ease of illustration, components including busbars, cooling units, external terminals for electrically connecting the batteries, etc., are not shown.

[0163] The battery pack 70 can be installed on (or inside) a vehicle. The vehicle can be, for example, an electric vehicle, a hybrid vehicle, a plug-in hybrid vehicle, etc. The vehicle can be a four-wheeled vehicle or a two-wheeled vehicle, but is not limited to these. Figure 15 Vehicle V is shown, and vehicle V includes on its lower body. Figure 14 The battery pack 70 is shown. The vehicle V can operate by receiving power from the battery pack 70 (e.g., it can be powered by receiving power from the battery pack 70).

[0164] Although exemplary embodiments of this disclosure have been described herein, this disclosure is not limited thereto. Various modifications and variations may be made by those skilled in the art within the spirit of this disclosure and the equivalents of the appended claims.

Claims

1. A system for automatically releasing a battery module, the system comprising: A battery module, including at least one battery cell; A battery rack in which the battery module is held; as well as The battery control unit is configured to perform control to automatically release the battery module from the battery rack. The battery module is fixed to the inclined surface of the module mounting structure of the battery rack by a module fixing device, and when a problem occurs in the battery module, the battery module is released from the battery rack along the inclined surface of the module mounting structure when the module fixing device operates under the control of the battery control unit.

2. The system according to claim 1, wherein, The inclined surface of the module mounting structure is set at an angle of 1° to 90° with the horizontal axis of the battery rack.

3. The system according to claim 1, wherein, The battery module includes sensors that sense temperature, voltage, and current, and send the sensed information to the battery control unit.

4. The system according to claim 1, wherein, The battery module and the battery rack are magnetically connected at the connection point.

5. The system according to claim 1, wherein, The battery control unit performs control to release the battery modules arranged in multiple layers sequentially, from the battery module arranged in the lowest layer to the battery module arranged in the highest layer.

6. The system according to claim 1, wherein, The battery control unit performs simultaneous release control on the battery modules disposed in multiple layers.

7. The system according to claim 1, further comprising a fire extinguishing agent spraying device, wherein the fire extinguishing agent spraying device is disposed at one end of the inclined surface of the module mounting structure.

8. The system according to claim 7, wherein, The extinguishing agent spraying device, under the control of the battery control unit, adjusts at least one of the spraying direction, spraying angle, and spraying distance of the extinguishing agent.

9. A method for automatically releasing a battery module, the method being executed by a system, the method comprising the following steps: (a) Install battery module support components; (b) Monitor battery module status information; as well as (c) Release the battery module that has caused the problem from the whole structure by operating the battery module support assembly based on the monitoring results.

10. The method according to claim 9, wherein, Step (a) includes: The battery module is mounted on the inclined surface of the module mounting structure within the battery rack; and The module fixing device is set at one end of the inclined surface of the module mounting structure.

11. The method according to claim 9, wherein, Step (b) includes: determining that the problem has occurred when the temperature information obtained by the temperature sensor is a preset temperature or a higher temperature, the preset temperature or a higher temperature is maintained for a preset time or longer, a difference between the charge / discharge voltage specification and the preset voltage occurs, or the difference between the charge / discharge voltage specification and the preset voltage is maintained for a preset time or longer.

12. The method according to claim 9, wherein, Step (c) includes: By manipulating the battery module support assembly, the battery module in which the problem has occurred is controlled to move and release along the inclined surface of the module mounting structure; and Fire extinguishing agent is sprayed by operating the fire extinguishing agent spraying device.

13. The method according to claim 9, wherein, Step (c) includes: operating the battery module support assembly such that the battery modules disposed in the multiple layers are released sequentially from the battery module disposed in the lowest layer to the battery module disposed in the highest layer.

14. The method according to claim 9, wherein, Step (c) includes: operating the battery module support assembly such that the battery modules disposed in multiple layers are released simultaneously.

15. A system for automatically releasing a battery module, the system comprising: A memory containing a program that performs automatic release control on the battery module based on information sensed from the battery module; as well as The processor is configured to execute the program. The processor performs control by operating a module fixing device disposed on one side of the inclined surface of the module mounting structure on which the battery module is disposed, so that the battery module moves and is released along the inclined surface of the module mounting structure.

16. The system according to claim 15, wherein, When the temperature information obtained by the temperature sensor is a preset temperature or higher, the preset temperature or higher is maintained for a preset time or longer, a difference occurs between the charge / discharge voltage specification and the preset voltage, or the difference between the charge / discharge voltage specification and the preset voltage is maintained for a preset time or longer, the processor operates the module fixing device by determining that a problem has occurred.

17. The system according to claim 15, wherein, The processor sends control commands to the fire extinguishing agent spraying device, causing the fire extinguishing agent to be sprayed during the release of the battery module.

18. The system according to claim 15, wherein, The processor operates the module fixing device to release the battery modules arranged in multiple layers sequentially from the battery module arranged in the lowest layer to the battery module arranged in the highest layer.

19. The system according to claim 15, wherein, The processor operates the module fixing device, causing the battery modules disposed in multiple layers to be released simultaneously.

20. The system according to claim 15, wherein, The processor performs change control on at least one of the order in which the battery modules are released and the direction in which the battery modules are released.

Images