WO2023096101A1 - 전지 모듈 및 이를 포함하는 전지 팩 - Google Patents
전지 모듈 및 이를 포함하는 전지 팩 Download PDFInfo
- Publication number
- WO2023096101A1 WO2023096101A1 PCT/KR2022/013343 KR2022013343W WO2023096101A1 WO 2023096101 A1 WO2023096101 A1 WO 2023096101A1 KR 2022013343 W KR2022013343 W KR 2022013343W WO 2023096101 A1 WO2023096101 A1 WO 2023096101A1
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- WO
- WIPO (PCT)
- Prior art keywords
- bus bar
- battery
- battery module
- neutralizing agent
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0044—Sulphides, e.g. H2S
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/211—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/271—Lids or covers for the racks or secondary casings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/296—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by terminals of battery packs
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/507—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/552—Terminals characterised by their shape
- H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a battery module and a battery pack including the same, and more particularly, to a battery module and battery pack with improved safety.
- secondary batteries are attracting much attention as energy sources for power devices such as electric bicycles, electric vehicles, and hybrid electric vehicles as well as mobile devices such as mobile phones, digital cameras, laptops, and wearable devices.
- prismatic batteries and pouch-type batteries that can be stacked with a high degree of integration and have a small weight compared to capacity are mainly used as battery cells of medium-large-sized battery modules.
- Such a battery module has a structure in which a plurality of cell assemblies including a plurality of unit battery cells are connected in series to obtain high output.
- the battery cell can be repeatedly charged and discharged by an electrochemical reaction between components including positive and negative current collectors, separators, active materials, electrolytes, and the like.
- the all-solid-state battery is a battery using a solid electrolyte instead of the liquid electrolyte, Compared to lithium secondary batteries to which an electrolyte is applied, thermal stability is higher.
- the all-solid-state battery is advantageous over conventional lithium secondary batteries in terms of high energy density and output characteristics, simplification of the manufacturing process and enlargement / compaction of the battery, so research and interest have been focused on this in recent years. there is.
- the sulfide-based all-solid-state battery using a sulfide-based electrolyte is relatively inexpensive and safe, but when the sulfide-based electrolyte is exposed to moisture, it releases hydrogen sulfide (H 2 S), a harmful substance. There is a risk of causing
- An object to be solved by the present invention is to provide a battery module having improved safety and a battery pack including the same.
- a battery module includes a battery cell stack in which a plurality of battery cells are stacked, a module frame surrounding the battery cell stack, and a bus bar covering a portion of the battery cell stack exposed from the module frame.
- the gas sensor may be formed adjacent to the bus bar.
- the bus bar may include a terminal bus bar, and the gas sensor may be formed adjacent to a terminal portion of the terminal bus bar.
- the bus bar cover part may cover the terminal part of the terminal bus bar.
- the 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.
- a battery module according to 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.
- the battery module may further include a neutralizing agent formed inside the neutralizing agent accommodating part.
- the neutralizer may include at least one component selected from the group consisting of an iron compound and a catalyst.
- the neutralizing agent accommodation unit may include at least one type selected from the group consisting of an aerosol, a pad, a pocket, and a bulb.
- the battery module may further include a neutralizing agent injection unit formed in the neutralizing agent accommodating unit.
- a battery pack according to another embodiment of the present invention includes the battery module.
- a battery module includes a gas sensor capable of detecting leakage of hydrogen sulfide and a neutralizer accommodating unit capable of neutralizing hydrogen sulfide, so that when hydrogen sulfide is leaked, it is sensed and neutralized to detect and neutralize the battery module and The safety of the battery pack can be improved.
- FIG. 1 is a perspective view showing a battery module according to an embodiment of the present invention.
- Figure 2 is a perspective view showing a drawing in which all components of Figure 1 are combined.
- Figure 3 is an exploded perspective view showing some of the components of Figure 1;
- FIG. 4 is an exploded perspective view showing some of the components of a battery module according to another embodiment of the present invention.
- FIG. 5 is a view showing a battery module according to another embodiment of the present invention.
- FIG. 6 is a perspective view showing a bus bar cover part and a neutralizing agent accommodating part included in the battery module of the present invention.
- FIG. 7 is a perspective view showing another type of bus bar cover part and a neutralizing agent accommodating part included in the battery module of the present invention.
- FIG. 8 is a perspective view showing a battery cell included in the battery module of the present invention.
- FIG. 9 is a schematic diagram of a hydrogen sulfide neutralization system operating in a battery pack and a device including the battery pack according to another embodiment of the present invention.
- a part such as a layer, film, region, plate, etc.
- another part is in the middle.
- a part is said to be “directly on” another part, it means that there is no other part in between.
- a reference part means to be located above or below the reference part, and to necessarily be located “above” or "on” in the opposite direction of gravity does not mean no.
- planar image it means when the target part is viewed from above, and when it is referred to as “cross-sectional image”, it means when a cross section of the target part cut vertically is viewed from the side.
- FIGS. 1 to 3 and 6 to 8 a battery module according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3 and 6 to 8 .
- FIG. 1 is a perspective view showing a battery module according to an embodiment of the present invention.
- Figure 2 is a perspective view showing a drawing in which all components of Figure 1 are combined.
- Figure 3 is an exploded perspective view showing some of the components of Figure 1;
- 6 is a perspective view showing a bus bar cover part and a neutralizing agent accommodating part included in the battery module of the present invention.
- 7 is a perspective view showing another type of bus bar cover part and a neutralizing agent accommodating part included in the battery module of the present invention.
- 8 is a perspective view showing a battery cell included in the battery module of the present invention.
- the battery module 100 includes a battery cell stack 120 in which a plurality of battery cells 110 are stacked and a module frame surrounding the battery cell stack 120. (200).
- the battery cell 110 is preferably a pouch-type battery cell, and may be formed in a rectangular sheet-like structure.
- the battery cell 110 according to the present embodiment has two electrode leads 111 and 112 facing each other so that one end 114a and the other end of the cell body 113 ( 114b) have structures protruding from each other. That is, the battery cell 110 includes electrode leads 111 and 112 protruding in opposite directions. 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 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 . Accordingly, the two electrode leads 111 and 112 may protrude in the same direction.
- both ends 114a and 114b of the cell case 114 and one side portion 114c connecting them are bonded while the electrode assembly (not shown) is accommodated in the cell case 114.
- the battery cell 110 has a total of three sealing parts 114sa, 114sb, and 114sc, and the sealing parts 114sa, 114sb, and 114sc are sealed by a method such as thermal fusion.
- the other side may be made of the connecting portion 115.
- the sealing parts 114sa, 114sb, and 114sc may include a sealing part 114sc formed in the longitudinal direction of the battery cell and a sealing part 114sa, 114sb formed in the width direction of the battery cell.
- a sealing part 114sc formed in the longitudinal direction of the battery cell and a sealing part 114sa, 114sb formed in the width direction of the battery cell.
- the cell case 114 may be made of a laminated sheet including a resin layer and a metal layer.
- a space between both ends 114a and 114b of the battery case 114 is defined in the longitudinal direction of the battery cell 110, and one side portion 114c connecting both ends 114a and 114b of the battery case 114
- a space between the and the connecting portion 115 may be defined in the width direction of the battery cell 110 .
- the connecting portion 115 may extend along one edge of the battery cell 110 , and a bat ear 110p may be formed at an end of the connecting portion 115 .
- the terrace portion 116 may be formed between the electrode leads 111 and 112 and the cell body 113. That is, the battery cell 110 may include a terrace portion 116 extending from the cell case 114 in a direction in which the electrode leads 111 and 112 protrude.
- the battery cells 110 may be configured in plurality, and the plurality of battery cells 110 are stacked so as to be electrically connected to each other to form the battery cell stack 120 .
- a plurality of battery cells 110 may be stacked along a direction parallel to the y-axis.
- the electrode leads 111 and 112 may protrude in the x-axis direction and the -x-axis direction, respectively.
- the two electrode leads 111 and 112 protrude equally in the x-axis direction or in the -x-axis direction. It can protrude in the same way.
- the module frame 200 may be a mono frame surrounding the battery cell stack 120 except for the front and rear surfaces.
- the module frame 200 is not limited thereto, and an L-shaped frame or a U-shaped frame covering the lower and both sides of the battery cell stack 120 with its top, front and rear surfaces open, and the battery cell stack 120 ) It may include a module frame structure including an upper plate covering the top.
- the battery cell stack 120 accommodated inside the module frame 200 may be physically protected through the module frame 200 .
- the battery module 100 may further include a thermally conductive resin layer positioned between the lower surface of the battery cell stack 120 and the bottom of the module frame 200,
- the thermally conductive resin layer may serve to transfer heat generated from the battery cell 110 to the bottom of the battery module 100 and to fix the battery cell stack 120 .
- surface cooling of the battery cell stack 120 may be possible by forming a cooling passage or an additional heat dissipation material formed to contact the lower surface of the battery cell stack 120 together with the thermally conductive resin layer.
- the end plate 150 may cover the front and rear surfaces of the battery cell stack 120 that is open from the module frame 200 .
- the end plate 150 may be coupled to front and rear edges of the module frame 200 through welding.
- a bus bar frame 130 may be formed between the end plate 150 and the front and rear surfaces of the battery cell stack 120 . That is, the end plate 150 may cover the bus bar frame 130 . At this time, the bus bar frame 130 may cover a portion of the battery cell stack 120 exposed from the module frame 200 .
- the plurality of bus bars 140 mounted on the bus bar frame 130 protrude from the battery cells 110 through the bus bar frame 130, and the electrode leads 111 mounted on the bus bar frame 130, 112) can be connected.
- the bus bar 140 may include a terminal bus bar 141
- the terminal bus bar 141 may include a terminal portion 141a.
- the battery module according to the present embodiment may include a bus bar cover part 400 covering a portion where the bus bar 140, in particular, the terminal bus bar 141 is exposed to the outside of the end plate 150. there is.
- the bus bar cover portion 400 is formed to cover the terminal portion 141a of the terminal bus bar 141, thereby preventing the terminal portion 141a from being exposed to the outside of the battery module 100.
- it may serve to primarily prevent leakage of hydrogen sulfide, which is highly likely to leak through the terminal portion 141a.
- a sulfide-based all-solid-state battery using a sulfide-based electrolyte is, when the sulfide-based electrolyte is exposed to moisture There is a risk of generating hydrogen sulfide (H 2 S), which is a harmful substance.
- the battery module according to this embodiment includes a gas sensor 300 formed on a bus bar frame 130, a bus bar cover part 400 covering the bus bar 140, and a bus It includes a neutralizing agent accommodating part 500 formed on the bar cover part 400.
- the gas sensor 300 may be formed on the bus bar frame 130 so as to be adjacent to the bus bar 140 .
- the gas sensor 300 may be formed adjacent to the bus bar 140, and more specifically, the gas sensor 300 may be adjacent to the terminal portion 141a of the terminal bus bar 141. Formation can achieve the effect of immediately detecting the leakage of hydrogen sulfide.
- the battery module 100 includes the neutralizing agent accommodating portion 500 formed on the bus bar cover portion 400 as described above.
- the neutralizing agent accommodating part 500 is adjacent to the terminal part 141a of the terminal bus bar 141, which has a high risk of hydrogen sulfide leakage, in order to immediately remove hydrogen sulfide after the gas sensor 300 detects the leakage of hydrogen sulfide. can be formed.
- the neutralizing agent accommodating portion 500 may be formed on the bus bar cover portion 400 covering the terminal portion 141a of the terminal bus bar 141 .
- the neutralizing agent accommodating unit 500 may include a neutralizing agent formed inside the neutralizing agent accommodating unit 500 .
- the neutralizer may include one or more components selected from the group including an iron compound and a catalyst.
- the iron compound is ferric sulfate (Fe 2 (SO 4 ) 3 ), iron (III) oxide (Fe 2 O 3 ), iron oxyhydroxide (FeO(OH)) and/or iron citrate (FeC 6 H 5 O 7 ) may be included.
- the catalyst may include iron hydroxide (Fe(OH) 2 , Fe(OH) 3 ) and/or zinc hydroxide.
- the neutralizer may include at least one component selected from the group including the iron compound and the catalyst, and may neutralize hydrogen sulfide through the component.
- the neutralizing agent accommodating unit 500 may include one or more types selected from the group consisting of a pad, a pocket, an aerosol, and a bulb.
- the neutralizing agent accommodating part 500 may include the pad shape, so that the neutralizer is stored in the form of a microcapsule inside the pad shape, and hydrogen sulfide is neutralized by the neutralizer.
- hydrogen sulfide and the neutralizing agent may react inside the pad while hydrogen sulfide passes through the pad.
- the form of the pocket may be to form a pocket made of a polymer material and/or a metal material and accommodate a neutralizing agent therein. Therefore, when hydrogen sulfide is generated, the pocket is broken and the neutralizing agent may leak out and react with hydrogen sulfide.
- the pad shape and the pocket shape may be formed on the bus bar cover part 400 as shown in FIG. 6 .
- the neutralizing agent accommodating unit 500 may include an aerosol extinguishing form injecting the neutralizing agent into the air in the form of an aerosol.
- the neutralizing agent accommodating unit 500 in the form of an aerosol may include a neutralizing agent spraying unit 510 formed below the neutralizing agent accommodating unit 500 .
- a hole 410 may be formed on the bus bar cover 400 to minimize the protrusion of the neutralizer injection unit 510 .
- the neutralizing agent spraying unit 510 may be formed to be coupled with the hole 410, and when hydrogen sulfide flows out, the neutralizing agent may be sprayed to a wide area through the neutralizing agent spraying unit 510 to neutralize hydrogen sulfide. there is.
- the bulb shape may specifically include a plastic bulb shape.
- the bulb shape may include a neutralizing agent accommodating part 500 and a neutralizing agent spraying part 510, and in some cases may further include a liquid formed in the neutralizing agent spraying part 510. there is. Therefore, when the battery module 100 heats up, the liquid vaporizes, thereby opening the neutralizer injection unit 510 or, in some cases, the bulb-shaped neutralizer receiving unit 500 being crushed, thereby neutralizing hydrogen sulfide. .
- the neutralizing agent accommodating portion 500 including the shape of the pad, pocket, aerosol, and/or bulb is a rectangular parallelepiped or a hexahedron with rounded corners to be formed on the bus bar cover 400. can be formed into shapes.
- the neutralizing agent accommodating unit 500 may be formed in various shapes within a range capable of securing the neutralizing performance of the neutralizing agent accommodating unit 500 according to the present invention.
- the neutralizing agent accommodating unit 500 has the above-mentioned shape, and by accommodating the neutralizing agent in the neutralizing agent accommodating unit 500, when leakage of hydrogen sulfide is detected by the gas sensor 300, the neutralizing agent accommodating unit 500 It is opened and can neutralize hydrogen sulfide by spraying the neutralizing agent.
- safety of the battery module 100, the battery pack including the battery module 100, and the device can be improved by securing a structure capable of neutralizing hydrogen sulfide, which is a harmful substance, when it leaks.
- This embodiment may include all of the contents of the battery module described above, and only contents that do not overlap with the contents described above will be described.
- FIG. 4 is an exploded perspective view showing some of the components of a battery module according to another embodiment of the present invention.
- 5 is a view showing a battery module according to another embodiment of the present invention.
- the battery module 100 may further include a gas sensor 310 formed on the end plate 150 .
- the gas sensor 310 may be formed adjacent to the terminal portion 141a of the terminal bus bar 141 . Therefore, the gas sensor 310 is formed on the inner or outer surface of the end plate 150 adjacent to the terminal portion 141a, so that generation and leakage of hydrogen sulfide can be immediately sensed through the entire gas sensor 310. can
- the battery module according to the present embodiment may further include a gas sensor 320 formed between the top of the battery cell stack 120 and the module frame 200 .
- the gas sensor 320 may be formed between the upper portion of the battery cell stack 120 adjacent to the terminal portion 141a of the terminal bus bar 141 and the upper portion of the module frame 200 .
- the gas sensor 320 may be formed on the inner surface of the upper portion of the module frame 200 or may be formed on the upper portion of the battery cell stack 120 .
- the leakage of hydrogen sulfide can be detected and the hydrogen sulfide can be immediately neutralized.
- the gas sensors 300, 310 and 320 are between the bus bar frame 130 and the terminal unit 141a, between the end plate 150 and the terminal unit 141a, and It may be formed at at least one location selected from between the battery cell stack 120 and the module frame 200 . Therefore, not only the case where the gas sensor is formed at all positions where the gas sensors 300, 310, and 320 described above can be formed, but also the case where the gas sensor is formed at some of the position where the gas sensor can be formed is within the scope of the present invention. can be included in
- the hydrogen sulfide may be neutralized by injecting the neutralizing agent while detecting leakage of hydrogen sulfide. Therefore, it is possible to prevent the safety of the battery module 100 from deteriorating due to leakage of hydrogen sulfide, and furthermore, it is possible to secure the safety of a battery pack and a device in which the battery module 100 is disposed.
- a battery pack according to this embodiment includes the battery module described above.
- the battery pack of the present invention may have a structure in which one or more battery modules according to the present embodiment are gathered and packed by adding a battery management system (BMS) that manages the temperature or voltage of the battery and a cooling device. there is.
- BMS battery management system
- the battery pack may be applied to various devices. These devices can be applied to means of transportation such as electric bicycles, electric vehicles, hybrid vehicles, etc., but the present invention is not limited thereto and can be applied to various devices capable of using a battery module, which also falls within the scope of the present invention. .
- FIG. 9 is a schematic diagram of a hydrogen sulfide neutralization system operating in a battery pack and a device including the battery pack according to another embodiment of the present invention.
- the battery pack and device including the battery module of the present invention may include detecting hydrogen sulfide leak through a gas sensor and determining the leaked hydrogen sulfide concentration.
- a step of opening the neutralizing agent accommodating unit 500 and injecting the neutralizing agent (BMS) may be further included.
- a step of notifying the user of the neutralizer injection may be further included.
- the gas sensors 300, 310, 320 and the neutralizing agent accommodating unit 500 included in the battery module 100 described in the present embodiments are sulfurized through the slave BMS, BMS, and instrument panel configuration included in the battery pack and device. It can constitute a neutralization system of hydrogen. That is, in the battery pack and device according to the present embodiment, the hydrogen sulfide neutralization system includes the step of determining the degree of hydrogen sulfide leak detected through the gas sensor, opening the neutralizer accommodating unit 500, and notifying the user of this. By including, it is possible to secure more improved safety.
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Abstract
Description
Claims (11)
- 복수의 전지 셀이 적층되어 있는 전지 셀 적층체,상기 전지 셀 적층체를 감싸는 모듈 프레임,상기 모듈 프레임으로부터 노출되는 상기 전지 셀 적층체 부분을 덮는 버스 바 프레임,상기 버스 바 프레임을 통해 상기 전지 셀 적층체에서 돌출된 전극 리드와 연결된 버스 바,상기 버스 바 프레임에 형성된 가스 센서,상기 버스 바를 덮는 버스 바 커버부, 및상기 버스 바 커버부 상에 형성되는 중화제 수용부를 포함하는 전지 모듈.
- 제1항에서,상기 가스 센서는 상기 버스 바와 인접하도록 형성되는 전지 모듈.
- 제2항에서,상기 버스 바는 단자 버스 바를 포함하고,상기 가스 센서는 상기 단자 버스 바의 단자부와 인접하도록 형성되는 전지 모듈.
- 제3항에서,상기 버스 바 커버부는 상기 단자 버스 바의 단자부를 덮는 전지 모듈.
- 제1항에서,상기 버스 바 프레임을 덮는 엔드 플레이트를 더 포함하고,상기 엔드 플레이트에 형성되는 가스 센서를 더 포함하는 전지 모듈.
- 제1항에서,상기 전지 셀 적층체의 상부와 상기 모듈 프레임 사이에 형성되는 가스 센서를 더 포함하는 전지 모듈.
- 제1항에서,상기 중화제 수용부 내부에 형성되는 중화제를 더 포함하는 전지 모듈.
- 제7항에서,상기 중화제는 철 화합물 및 촉매를 포함하는 군에서 선택된 1종 이상의 성분을 포함하는 전지 모듈.
- 제7항에서,상기 중화제 수용부는 패드, 포켓, 에어로졸, 및 벌브를 포함하는 군에서 선택된 1종 이상의 형태를 포함하는 전지 모듈.
- 제1항에서,상기 중화제 수용부에 형성되는 중화제 분사부를 더 포함하는 전지 모듈.
- 제1항에 따른 전지 모듈을 포함하는 전지 팩.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18/270,592 US20240014455A1 (en) | 2021-11-24 | 2022-09-06 | Battery module and battery pack and method performed by hydrogen sulfide neutralization system |
| CN202280009960.7A CN116711126A (zh) | 2021-11-24 | 2022-09-06 | 电池模块以及包括该电池模块的电池组 |
| EP22898785.5A EP4250432B1 (en) | 2021-11-24 | 2022-09-06 | Battery module and battery pack including the same |
| JP2023539368A JP7618347B2 (ja) | 2021-11-24 | 2022-09-06 | 電池モジュールおよびこれを含む電池パック |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2021-0163384 | 2021-11-24 | ||
| KR1020210163384A KR20230076448A (ko) | 2021-11-24 | 2021-11-24 | 전지 모듈 및 이를 포함하는 전지 팩 |
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| WO2023096101A1 true WO2023096101A1 (ko) | 2023-06-01 |
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| PCT/KR2022/013343 Ceased WO2023096101A1 (ko) | 2021-11-24 | 2022-09-06 | 전지 모듈 및 이를 포함하는 전지 팩 |
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| US (1) | US20240014455A1 (ko) |
| EP (1) | EP4250432B1 (ko) |
| JP (1) | JP7618347B2 (ko) |
| KR (1) | KR20230076448A (ko) |
| CN (1) | CN116711126A (ko) |
| WO (1) | WO2023096101A1 (ko) |
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| CN118603430A (zh) * | 2024-08-07 | 2024-09-06 | 宁德时代新能源科技股份有限公司 | 电池密封检测方法以及装置 |
| KR20260025249A (ko) * | 2024-08-15 | 2026-02-24 | 주식회사 엘지에너지솔루션 | 안전성이 향상된 전지 모듈 및 이를 포함하는 전지 팩 |
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| KR101225236B1 (ko) * | 2010-10-27 | 2013-01-22 | 현대제철 주식회사 | 수재설비의 악취물질 처리방법 및 장치 |
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| JP6103856B2 (ja) * | 2012-08-20 | 2017-03-29 | ホーチキ株式会社 | 電気自動車向け消火システム |
| CN107305947B (zh) * | 2016-04-25 | 2022-01-04 | 松下知识产权经营株式会社 | 电池和电池系统 |
| KR102273195B1 (ko) * | 2017-12-27 | 2021-07-05 | 주식회사 엘지에너지솔루션 | 개선된 냉각 구조를 갖는 배터리 모듈 |
| KR102172960B1 (ko) * | 2018-11-21 | 2020-11-02 | (주)알씨디에이치 | 전원모듈에 설치되는 배선가이드 프레임 |
| JP7222818B2 (ja) * | 2019-06-11 | 2023-02-15 | イビデン株式会社 | 電池パック |
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- 2022-09-06 JP JP2023539368A patent/JP7618347B2/ja active Active
- 2022-09-06 WO PCT/KR2022/013343 patent/WO2023096101A1/ko not_active Ceased
- 2022-09-06 US US18/270,592 patent/US20240014455A1/en active Pending
- 2022-09-06 CN CN202280009960.7A patent/CN116711126A/zh active Pending
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Also Published As
| Publication number | Publication date |
|---|---|
| EP4250432A4 (en) | 2025-03-12 |
| CN116711126A (zh) | 2023-09-05 |
| JP2024501683A (ja) | 2024-01-15 |
| JP7618347B2 (ja) | 2025-01-21 |
| US20240014455A1 (en) | 2024-01-11 |
| EP4250432B1 (en) | 2026-04-29 |
| KR20230076448A (ko) | 2023-05-31 |
| EP4250432A1 (en) | 2023-09-27 |
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