Battery module and battery pack including same

Abstract

A battery module according to one embodiment of the present invention includes a battery cell stack in which a plurality of battery cells are stacked, a module frame surrounding the battery cell stack, a bus bar frame covering a portion of the battery cell stack exposed from the module frame, a bus bar connected to an electrode lead protruding from the battery cell stack via the bus bar frame, a gas sensor formed on the bus bar frame, a bus bar cover portion covering the bus bar, and a neutralizing agent receiving portion formed on the bus bar cover portion.

Description

[Technical field]

[0001] [CROSS REFERENCE TO RELATED APPLICATIONS] This application claims the benefit of priority based on Korean Patent Application No. 10-2021-0163384 dated November 24, 2021, and all contents disclosed in the documents of that Korean patent application are incorporated herein by reference.

[0002] The present invention relates to a battery module and a battery pack including the same, and more particularly to a battery module and a battery pack with improved safety. [Background technology]

[0003] With technological development and increasing demand for mobile devices, the demand for secondary batteries as an energy source is rapidly increasing. In particular, secondary batteries are attracting much attention not only for mobile devices such as mobile phones, digital cameras, laptops, and wearable devices, but also as an energy source for power devices such as electric bicycles, electric cars, and hybrid electric cars.

[0004] While small mobile devices use one, two, three, or four battery cells per device, medium- to large-sized devices such as automobiles require high output and large capacity. Therefore, medium- to large-sized battery modules that electrically connect multiple battery cells are used.

[0005] Since it is preferable that medium- to large-sized battery modules are manufactured with as small a size and weight as possible, prismatic batteries, pouch-shaped batteries, etc., which can be stacked with a high degree of integration and have a small weight relative to their capacity, are mainly used as battery cells for medium- to large-sized battery modules. Such battery modules have a structure in which a large number of cell assemblies, each including a plurality of unit battery cells, are connected in series to obtain high output. The battery cells include positive and negative electrode current collectors, separators, active materials, electrolytes, etc., and can be repeatedly charged and discharged by electrochemical reactions between the components.

[0006] At this time, development is being carried out on all-solid-state batteries that use the above-described electrolyte as an all-solid-state material, and all-solid-state batteries use a solid electrolyte instead of the liquid electrolyte, and have the advantage of being more thermally stable than existing lithium secondary batteries that use liquid electrolytes.In addition, the all-solid-state batteries are more advantageous than existing lithium secondary batteries in terms of high energy density and output characteristics, simplified manufacturing processes, and larger / more compact batteries, and thus have recently been the focus of research and interest in these fields.

[0007] In particular, among the all-solid-state batteries, sulfide-based all-solid-state batteries that use a sulfide-based electrolyte are relatively inexpensive and safe. However, if the sulfide-based electrolyte is exposed to moisture, there is a risk of generating the harmful substance hydrogen sulfide (H2S).

[0008] Therefore, there is a need for a new technology that can neutralize hydrogen sulfide so that even if hydrogen sulfide is generated, it will not leak outside the battery module and battery pack. Summary of the Invention [Problem to be solved by the invention]

[0009] An object of the present invention is to provide a battery module with improved safety and a battery pack including the same.

[0010] However, the problems that the present invention is intended to solve are not limited to those mentioned above, and problems not mentioned will be clearly understood by those having ordinary skill in the art to which the present invention pertains from this specification and the attached drawings. [Means for solving the problem]

[0011] A battery module according to an embodiment of the present invention includes a battery cell stack in which a plurality of battery cells are stacked, a module frame surrounding the battery cell stack, a bus bar frame covering a portion of the battery cell stack exposed from the module frame, a bus bar connected to an electrode lead protruding from the battery cell stack via the bus bar frame, a gas sensor formed on the bus bar frame, a bus bar cover portion covering the bus bar, and a gas sensor formed on the bus bar cover portion. Hydrogen Sulfide Reactant and a storage section.

[0012] The gas sensor is formed adjacent to the bus bar.

[0013] The bus bar includes a terminal bus bar, and the gas sensor is formed adjacent to a terminal portion of the terminal bus bar.

[0014] The bus bar cover portion can cover the terminal portion of the terminal bus bar.

[0015] A battery module according to another embodiment of the present invention may further include an end plate covering the bus bar frame, and may further include a gas sensor formed on the end plate.

[0016] A battery module according to still another embodiment of the present invention may further include a gas sensor formed between an upper portion of the battery cell stack and the module frame.

[0017] The battery module includes: Hydrogen Sulfide Reactant Formed inside the container Hydrogen Sulfide Reactant It may further include:

[0018] The above Hydrogen Sulfide Reactant may comprise one or more components selected from the group comprising iron compounds and catalysts.

[0019] The above Hydrogen Sulfide ReactantThe reservoir may include one or more forms selected from the group including an aerosol, a pad, a pocket, and a valve.

[0020] The battery module includes: Hydrogen Sulfide Reactant Formed in the container Hydrogen Sulfide Reactant The nozzle may further include an ejector.

[0021] A battery pack according to yet another embodiment of the present invention includes the battery module. Effect of the Invention

[0022] The battery module according to an embodiment of the present invention includes a gas sensor capable of detecting leakage of hydrogen sulfide and a gas sensor capable of neutralizing hydrogen sulfide. Hydrogen Sulfide Reactant By including the container, if hydrogen sulfide leaks, it can be detected and neutralized, improving the safety of the battery module and the battery pack.

[0023] The effects of the present invention are not limited to the effects described above, and effects not mentioned will be clearly understood by those having ordinary skill in the art to which the present invention pertains from this specification and the accompanying drawings. [Brief description of the drawings]

[0024] [Figure 1] 1 is a perspective view showing a battery module according to an embodiment of the present invention; [Diagram 2] FIG. 2 is a perspective view showing all the components of FIG. 1 combined together. [Diagram 3] FIG. 2 is an exploded perspective view showing some of the components of FIG. 1. [Figure 4] FIG. 4 is an exploded perspective view showing some of the components of a battery module according to another embodiment of the present invention. [Diagram 5] FIG. 13 is a diagram showing a battery module according to still another embodiment of the present invention. [Figure 6] FIG. 2 is a perspective view showing a bus bar cover portion and a hydrogen sulfide reactant storage portion included in the battery module of the present invention. [Figure 7]FIG. 11 is a perspective view showing another embodiment of a bus bar cover portion and a hydrogen sulfide reactant storage portion included in the battery module of the present invention. [Figure 8] FIG. 2 is a perspective view showing a battery cell included in the battery module of the present invention. [Figure 9] FIG. 13 is a schematic diagram of a hydrogen sulfide neutralization system operating with a battery pack and a device including the battery pack according to yet another embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0025] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings, in which: FIG. 1 is a block diagram of a semiconductor device according to an embodiment of the present invention;

[0026] In order to clearly explain the present invention, parts that are not necessary for the explanation will be omitted, and the same reference numerals will be used throughout the specification to refer to the same or similar components.

[0027] In addition, the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of explanation, and the present invention is not necessarily limited to those shown in the drawings. In the drawings, thicknesses are enlarged to clearly express various layers and regions. In the drawings, thicknesses of some layers and regions are exaggerated for convenience of explanation.

[0028] In addition, when a part such as a layer, film, region, or plate is said to be "on" another part, this includes not only the case where it is "directly on" the other part, but also the case where there is another part in between. Conversely, when a part is said to be "directly on" another part, it means that there is no other part in between. Furthermore, being "on" a reference part means being located above or below the reference part, and does not necessarily mean being located "on" in the opposite direction of gravity.

[0029] In addition, throughout the specification, when a part "comprises" a certain element, this means that it can further include other elements, but not excluding other elements, unless otherwise specified to the contrary.

[0030] Furthermore, throughout the specification, a reference to "in a plane" means that the part is viewed from above, and a reference to "in cross section" means that the part is viewed from the side through a vertical cut.

[0031] The terms "first" and "second" used in this application may be used to describe various components, but the components should not be limited by the terms. The terms are used only to distinguish one component from another.

[0032] BEST MODE FOR CARRYING OUT THE PRESENTLY PREFERRED EMBODIMENTS A battery module according to an embodiment of the present invention will now be described with reference to FIGS. 1 to 3 and 6 to 8. FIG.

[0033] FIG. 1 is a perspective view showing a battery module according to an embodiment of the present invention. FIG. 2 is a perspective view showing all components of FIG. 1 combined together. FIG. 3 is an exploded perspective view showing some of the components of FIG. 1. FIG. 6 is a perspective view showing a bus bar cover portion and Hydrogen Sulfide Reactant 7 is a perspective view showing a housing part. FIG. 7 is a perspective view showing a bus bar cover part and a housing part according to another embodiment of the present invention. Hydrogen Sulfide Reactant 8 is a perspective view showing a storage section.FIG 8 is a perspective view showing a battery cell included in a battery module of the present invention.FIG.

[0034] 1 to 3, a battery module 100 according to this embodiment includes a battery cell stack 120 in which a plurality of battery cells 110 are stacked, and a module frame 200 that surrounds the battery cell stack 120.

[0035] First, the battery cell 110 is preferably a pouch-type battery cell and is formed in a rectangular sheet-like structure. For example, referring to FIG. 8, the battery cell 110 according to this embodiment has a structure in which two electrode leads 111 and 112 face each other and protrude from one end 114a and the other end 114b of the cell body 113, respectively. That is, the battery cell 110 includes the electrode leads 111 and 112 protruding in directions facing each other. More specifically, the electrode leads 111 and 112 are connected to an electrode assembly (not shown) and protrude from the electrode assembly (not shown) to the outside of the battery cell 110. However, unlike that shown in FIG. 8, the two electrode leads 111 and 112 may have a structure protruding from one side of the same battery cell 110. Therefore, the two electrode leads 111 and 112 may protrude in the same direction.

[0036] Meanwhile, the battery cell 110 can be manufactured by bonding both ends 114a, 114b of the cell case 114 to one side 114c connecting them with each other in a state where an electrode assembly (not shown) is housed in the cell case 114. In other words, the battery cell 110 according to this embodiment has a total of three sealing parts 114sa, 114sb, 114sc, and the sealing parts 114sa, 114sb, 114sc are structured to be sealed by a method such as thermal fusion, and the remaining other side part is formed of the connecting part 115. In particular, the sealing parts 114sa, 114sb, 114sc can include the sealing part 114sc formed in the longitudinal direction of the battery cell and the sealing parts 114sa, 114sb formed in the width direction of the battery cell. In addition, the battery case 114 may have four sealing parts by further including one sealing part formed in the longitudinal direction of the battery cell together with the three sealing parts 114sa, 114sb, and 114sc. The cell case 114 is made of a laminate sheet including a resin layer and a metal layer. In this case, the distance between both ends 114a and 114b of the battery case 114 may be defined as the longitudinal direction of the battery cell 110, and the distance between one side part 114c connecting both ends 114a and 114b of the battery case 114 and the connecting part 115 may be defined as the width direction of the battery cell 110.

[0037] Furthermore, the connecting portion 115 may extend long along one peripheral edge of the battery cell 110, and a butt ear 110p is formed at an end of the connecting portion 115. Furthermore, as the cell case 114 is sealed with the protruding electrode leads 111, 112 sandwiched therebetween, a terrace portion 116 is formed between the electrode leads 111, 112 and the cell body 113. In other words, the battery cell 110 may include the terrace portion 116 formed by extending from the cell case 114 in the direction in which the electrode leads 111, 112 protrude.

[0038] Such a battery cell 110 may be configured in a plurality of pieces, and a plurality of battery cells 110 are stacked so as to be electrically connected to each other to form a battery cell stack 120. In particular, as shown in Fig. 3, a plurality of battery cells 110 are stacked along a direction parallel to the y-axis. Thus, the electrode leads 111 and 112 may protrude in the x-axis direction and the -x-axis direction, respectively. However, as described above, in a battery cell 110 in which the electrode leads 111 and 112 protrude in the same direction, the two electrode leads 111 and 112 protrude in the same direction in the x-axis direction or the -x-axis direction.

[0039] 1 to 3 again, the module frame 200 may be a monoframe that surrounds the battery cell stack 120 except for the front and rear surfaces. However, the module frame 200 is not limited thereto and may include a module frame structure including an L-shaped frame or a U-shaped frame with an open top, front and rear surfaces that covers the bottom and both sides of the battery cell stack 120, and an upper plate that covers the top of the battery cell stack 120. The battery cell stack 120 accommodated inside the module frame 200 can be physically protected via the module frame 200.

[0040] In addition, although not shown, the battery module 100 according to this embodiment may further include a thermally conductive resin layer located between the lower surface of the battery cell stack 120 and the bottom of the module frame 200, and the thermally conductive resin layer may play a role in transferring heat generated from the battery cells 110 to the bottom of the battery module 100 and fixing the battery cell stack 120. In addition, a cooling flow path or an additional heat dissipation material may be formed in contact with the lower surface of the battery cell stack 120 together with the thermally conductive resin layer, thereby making it possible to cool the surface of the battery cell stack 120.

[0041] The end plates 150 can cover the front and rear surfaces of the battery cell stack 120 that are exposed by the module frame 200. The end plates 150 can be joined to the front and rear end corners of the module frame 200 by welding.

[0042] A bus bar frame 130 is formed between the end plate 150 and the front and rear surfaces of the battery cell stack 120. That is, the end plate 150 can cover the bus bar frame 130. At this time, the bus bar frame 130 can cover the portion of the battery cell stack 120 that is exposed from the module frame 200.

[0043] A plurality of bus bars 140 attached to the bus bar frame 130 are formed to protrude from the battery cells 110 through the bus bar frame 130 and are connected to electrode leads 111, 112 attached to the bus bar frame 130. In this case, the bus bars 140 may include a terminal bus bar 141, and the terminal bus bar 141 may include a terminal portion 141a.

[0044] Furthermore, the battery module according to this embodiment may include a busbar cover part 400 that covers the busbar 140, particularly the portion of the terminal busbar 141 that is exposed to the outside of the end plate 150. Specifically, the busbar cover part 400 is formed to cover the terminal part 141a of the terminal busbar 141, thereby preventing the terminal part 141a from being exposed to the outside of the battery module 100. In addition, as described below, the busbar cover part 400 can serve to primarily prevent leakage of hydrogen sulfide, which is highly likely to leak through the terminal part 141a.

[0045] Among batteries that use sulfide-based electrolytes and all-solid-state batteries that use electrolytes as all-solid-state materials, sulfide-based all-solid-state batteries that use sulfide-based electrolytes have the risk of generating the harmful substance hydrogen sulfide (H2S) when the sulfide-based electrolyte is exposed to moisture.

[0046] Therefore, a structure is required that can neutralize hydrogen sulfide even if it is generated, so that hydrogen sulfide does not leak outside the battery module and battery pack.

[0047] 1 to 3, the battery module according to the present embodiment includes a gas sensor 300 formed on a bus bar frame 130, a bus bar cover portion 400 covering the bus bar 140, and a semiconductor device formed on the bus bar cover portion 400. Hydrogen Sulfide Reactant and a storage section 500.

[0048] Specifically, referring to FIG. 3, the gas sensor 300 according to the present embodiment is formed on the bus bar frame 130 so as to be adjacent to the bus bar 140 .

[0049] Generally, when hydrogen sulfide leaks, there is a very high possibility that the hydrogen sulfide leaks through the terminal portion (141a) of the battery module 100, so it is necessary to form a structure capable of detecting hydrogen sulfide adjacent to the terminal portion 141a in order to immediately detect the leakage of hydrogen sulfide.

[0050] Therefore, the gas sensor 300 according to this embodiment is formed adjacent to the bus bar 140, more specifically, the gas sensor 300 is formed adjacent to the terminal portion 141a of the terminal bus bar 141, thereby achieving the effect of immediately detecting leakage of hydrogen sulfide.

[0051] In this case, after the gas sensor 300 detects the leakage of hydrogen sulfide, it is necessary to form a structure for neutralizing hydrogen sulfide in order to immediately remove the hydrogen sulfide.

[0052] Therefore, referring to FIG. 6, the battery module 100 according to the present embodiment is formed on the bus bar cover part 400 as described above. Hydrogen Sulfide Reactant Includes a storage section 500.

[0053] Hydrogen Sulfide Reactant Container portion 500 is formed adjacent to terminal portion 141a of terminal bus bar 141, which is at high risk of hydrogen sulfide leakage, in order to immediately remove hydrogen sulfide after gas sensor 300 detects the leakage of hydrogen sulfide.

[0054] therefore, Hydrogen Sulfide Reactant The accommodating portion 500 is formed on a bus bar cover portion 400 that covers the terminal portion 141 a of the terminal bus bar 141 .

[0055] on the other hand, Hydrogen Sulfide Reactant The storage section 500 includes: Hydrogen Sulfide Reactant The receiving portion 500 is formed inside the receiving portion 500. Hydrogen Sulfide Reactant may include.

[0056] At this time, Hydrogen Sulfide Reactant can comprise one or more components selected from the group consisting of iron compounds and catalysts. The iron compounds can comprise ferric sulfate (Fe2(SO4)3), iron(III) oxide (Fe2O3), iron oxyhydroxide (FeO(OH)) and / or iron citrate (FeC6H5O7). The catalyst can comprise iron hydroxide (Fe(OH)2, Fe(OH)3) and / or zinc hydroxide. Thus, the Hydrogen Sulfide Reactantmay contain one or more components selected from the group including the iron compound and the catalyst, and hydrogen sulfide can be neutralized by the components.

[0057] Also, Hydrogen Sulfide Reactant The container 500 may include one or more shapes selected from the group including a pad, a pocket, an aerosol, and a bulb.

[0058] in particular, Hydrogen Sulfide Reactant The receiving part 500 includes the pad shape, so that the pad shape is provided inside the pad shape. Hydrogen Sulfide Reactant is stored in a microencapsulated form, Hydrogen Sulfide Reactant Specifically, the pad-shaped Hydrogen Sulfide Reactant The storage unit 500 stores hydrogen sulfide and the hydrogen sulfide in the pad as the hydrogen sulfide passes through the pad. Hydrogen Sulfide Reactant can react with.

[0059] In addition, the pocket shape is a pocket made of a polymer material and / or a metal material, and the pocket is Hydrogen Sulfide Reactant Therefore, when hydrogen sulfide is generated, the pocket is broken and the Hydrogen Sulfide Reactant leaks outside and reacts with hydrogen sulfide.

[0060] At this time, the pad shape and the pocket shape may be formed on a bus bar cover part 400 as shown in FIG.

[0061] On the other hand, referring to FIG. Hydrogen Sulfide Reactant The container 500 contains the above-mentioned in an aerosol form. Hydrogen Sulfide Reactant Specifically, as shown in FIG. 7, the aerosol form of the fire extinguishing agent can be sprayed into the air. Hydrogen Sulfide Reactant The storage section 500 includes: Hydrogen Sulfide Reactant The receiving portion 500 is formed at the bottom thereof. Hydrogen Sulfide Reactant The nozzle 510 may further include: Hydrogen Sulfide ReactantIn order to minimize the protruding portion of the injection part 510, a hole 410 is formed on the bus bar cover part 400. Hydrogen Sulfide Reactant The injection part 510 is formed to be connected to the hole 410, and when hydrogen sulfide flows out, Hydrogen Sulfide Reactant The above is injected into a wide range of areas through the injection part 510. Hydrogen Sulfide Reactant can be injected to neutralize hydrogen sulfide.

[0062] The valve form may specifically include a plastic valve form. The valve form may be, as shown in FIG. Hydrogen Sulfide Reactant Receptacle 500 and Hydrogen Sulfide Reactant Injection portion 510 may include, in some cases, Hydrogen Sulfide Reactant The battery module 100 may further include a liquid formed in the injection part 510. When the battery module 100 generates heat, the liquid is evaporated, Hydrogen Sulfide Reactant The injection part 510 is opened, or in some cases, the valve type Hydrogen Sulfide Reactant The hydrogen sulfide is neutralized by crushing the container 500.

[0063] At this time, the form, i.e., the pad, pocket, aerosol, and / or bulb form, Hydrogen Sulfide Reactant The receiving portion 500 is formed on the bus bar cover portion 400, and is therefore formed in a rectangular parallelepiped or hexahedral shape with rounded corners. Hydrogen Sulfide Reactant Within the range where the neutralization performance of the storage unit 500 can be ensured Hydrogen Sulfide Reactant The receiving portion 500 may be formed in various shapes.

[0064] therefore, Hydrogen Sulfide Reactant The storage section 500 includes the above-mentioned configuration, Hydrogen Sulfide Reactant Inside the storage unit 500 Hydrogen Sulfide Reactant When the gas sensor 300 detects a leak of hydrogen sulfide, Hydrogen Sulfide Reactant The storage section 500 is opened, Hydrogen Sulfide ReactantIn addition, by ensuring a structure that can neutralize hydrogen sulfide when it leaks, the safety of the battery module 100, the battery pack including the battery module 100, and the device can be improved.

[0065] Hereinafter, a battery module according to a modified embodiment of the present invention will be described with reference to Figures 4 and 5. This embodiment may include all of the contents of the battery module described above, and only the contents that do not overlap with the contents described above will be described.

[0066] Fig. 4 is an exploded perspective view showing some of the components of a battery module according to another embodiment of the present invention, and Fig. 5 is a view showing a battery module according to still another embodiment of the present invention.

[0067] 4, the battery module 100 according to this embodiment may further include a gas sensor 310 formed on the end plate 150. The gas sensor 310 is formed adjacent to the terminal portion 141a of the terminal bus bar 141. Therefore, the gas sensor 310 is formed on the inner surface or outer surface of the end plate 150 adjacent to the terminal portion 141a, so that the generation and leakage of hydrogen sulfide can be immediately detected by the gas sensor 310.

[0068] 5, the battery module according to this embodiment may further include a gas sensor 320 formed between an upper portion of the battery cell stack 120 and the module frame 200. The gas sensor 320 is formed between an upper portion of the battery cell stack 120 adjacent to the terminal portion 141a of the terminal bus bar 141 and an upper portion of the module frame 200.

[0069] In particular, the gas sensor 320 is formed on an inner surface of the upper side of the module frame 200 and formed on the top of the battery cell stack 120 .

[0070] The gas sensor 320 formed at the above-mentioned position can detect leakage of hydrogen sulfide and immediately neutralize the hydrogen sulfide.

[0071] Furthermore, based on the above, gas sensors 300, 310, 320 according to the embodiments of the present invention are formed in at least one position selected from between bus bar frame 130 and terminal portion 141a, between end plate 150 and terminal portion 141a, and between battery cell stack 120 and module frame 200. Therefore, not only cases where gas sensors are formed in all positions where gas sensors 300, 310, 320 described above can be formed, but also cases where gas sensors are formed in some of the positions where gas sensors can be formed are all within the scope of the present invention.

[0072] As described above, a single or a plurality of gas sensors 300 are formed adjacent to the bus bar 140, particularly the terminal portion 141a of the terminal bus bar 141, so that leakage of hydrogen sulfide can be detected. Hydrogen Sulfide Reactant By forming the storage section 500, it is possible to detect the leakage of hydrogen sulfide and at the same time Hydrogen Sulfide Reactant Therefore, it is possible to prevent the safety of the battery module 100 from being reduced due to leakage of hydrogen sulfide, and further to ensure the safety of the battery pack and device in which the battery module 100 is disposed.

[0073] A battery pack according to still another embodiment of the present invention will now be described.

[0074] The battery pack according to the present embodiment includes the battery module described above. In addition, the battery pack of the present invention may be structured by packing one or more battery modules according to the present embodiment together with a battery management system (BMS) for managing the temperature and voltage of the battery, a cooling device, and the like.

[0075] The battery pack can be applied to various devices, including vehicles such as electric bicycles, electric cars, and hybrid cars, but the present invention is not limited thereto and can be applied to various devices that can use a battery module, which also fall within the scope of the present invention.

[0076] FIG. 9 is a schematic diagram of a hydrogen sulfide neutralization system operating with a battery pack and a device including the battery pack according to yet another embodiment of the present invention.

[0077] 9, the battery pack and device including the battery module of the present invention may include a step of detecting leakage of hydrogen sulfide by a gas sensor and a step of determining the concentration of the leaked hydrogen sulfide. At this time, after determining the concentration of the leaked hydrogen sulfide (slave BMS), Hydrogen Sulfide Reactant Open the storage unit 500 Hydrogen Sulfide Reactant The method may further include the step of injecting (BMS). Hydrogen Sulfide Reactant After being injected, Hydrogen Sulfide Reactant The method may further include a step of notifying a user of the injection (DTC, instrument panel).

[0078] Therefore, the gas sensors 300, 310, 320 and Hydrogen Sulfide Reactant The housing 500 can constitute a hydrogen sulfide neutralization system by the configuration of the slave BMS, the BMS and the instrument panel included in the battery pack and the device. In other words, the battery pack and the device according to this embodiment grasp the degree of hydrogen sulfide leakage detected by the gas sensor, Hydrogen Sulfide Reactant Further safety can be ensured by including a hydrogen sulfide neutralization system that includes the steps of opening the container 500 and informing the user thereof.

[0079] Although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the above-mentioned specific embodiments, and various modifications may be made by a person having ordinary skill in the art to which the invention pertains without departing from the gist of the present invention as claimed in the claims. However, such modifications should not be understood individually from the technical ideas and perspectives of the present invention. [Explanation of symbols]

[0080] 100: Battery module 110: Battery cell 120: Battery cell stack 130: Busbar frame 140: Busbar 141: Terminal bus bar 150: End plate 200: Module frame 300: Gas sensor 400: Busbar cover part 500: Hydrogen Sulfide Reactant Storage section

Claims

1. a battery cell stack in which a plurality of battery cells are stacked; a module frame surrounding the battery cell stack; a bus bar frame that covers a portion of the battery cell stack that is exposed from the module frame; and a bus bar connected to an electrode lead protruding from the battery cell stack via the bus bar frame; a gas sensor formed on the bus bar frame; a bus bar cover portion that covers the bus bar; and a hydrogen sulfide reactant accommodating portion formed on the bus bar cover portion.

2. The battery module according to claim 1 , wherein the gas sensor is formed adjacent to the bus bar.

3. the bus bars include terminal bus bars; The battery module according to claim 2 , wherein the gas sensor is formed adjacent to a terminal portion of the terminal bus bar.

4. The battery module according to claim 3 , wherein the bus bar cover portion covers a terminal portion of the terminal bus bar.

5. The bus bar frame further includes an end plate covering the bus bar frame. The battery module according to claim 1 , further comprising a gas sensor formed on the end plate.

6. The battery module according to claim 1 , further comprising a gas sensor formed between an upper portion of the battery cell stack and the module frame.

7. 5. The battery module according to claim 1, further comprising a hydrogen sulfide reactant formed inside the hydrogen sulfide reactant storage portion.

8. The battery module of claim 7 , wherein the hydrogen sulfide reactant comprises one or more components selected from the group consisting of iron compounds and catalysts.

9. The battery module according to claim 7 , wherein the hydrogen sulfide reactant containing portion has one or more forms selected from the group consisting of a pad, a pocket, an aerosol, and a valve.

10. 5. The battery module according to claim 1, further comprising a hydrogen sulfide reactant injection section formed in the hydrogen sulfide reactant storage section.

11. A battery pack comprising the battery module according to any one of claims 1 to 4.

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