Gas analyzer

Abstract

The present invention relates to a gas analysis device, and provides a gas analysis device in which gases generated from a plurality of cells to be analyzed can be individually collected and analyzed in an automated system.

Description

Technical Field

[0001] This application claims the benefit of priority based on Korean Patent Application No. 10-2022-0178983 filed on December 20, 2022, the disclosure of which is incorporated in its entirety as a part of this specification.

[0002] The present disclosure relates to a gas analysis device, and to a gas analysis device capable of individually collecting and analyzing a gas generated from each of a plurality of batteries to be analyzed using an automated system. Background Art

[0003] Generally, a secondary battery is a battery that is reusable through a discharge process that converts chemical energy into electrical energy and a charging process that is the opposite of the discharge process, and includes a nickel-cadmium (Ni-Cd) battery, a nickel-metal hydride (Ni-MH) battery, a lithium metal battery, a lithium-ion (Li-ion) battery, and a lithium-ion polymer battery. Among these secondary batteries, lithium secondary batteries with high energy density and voltage, long cycle life, and low self-discharge rate have been commercialized and widely used.

[0004] According to the reaction in the lithium secondary battery, various types of gases such as hydrogen, oxygen, nitrogen, carbon monoxide, carbon dioxide, C n H 2n-2 (n = 2 ~ 5), C n H 2n (n = 2~5) and C n H 2n+2 (n=1~5) hydrocarbons and other organic gas substances as gases generated by secondary batteries.

[0005] In addition, as repeated charging and discharging proceed, lithium secondary batteries degrade while generating a large amount of secondary battery-generated gas due to electrolyte decomposition, and this aspect appears differently depending on the design and use form of the battery. Therefore, it is necessary to infer the degradation mechanism of the battery by analyzing the gas generated by the secondary battery during the battery development process.

[0006] Therefore, it is very important to accurately analyze the gas generated by secondary batteries. Specifically, information about the composition and content of the gas generated by secondary batteries can be used to develop battery materials, optimize battery manufacturing processes, and identify the causes of battery defects. To this end, it is important to develop a technology for analyzing the gas generated by secondary batteries.

[0007] The analysis of the gas generated by the secondary battery can be performed by the following steps: collecting the gas generated inside the secondary battery; delivering the collected gas to an analysis device such as a gas chromatograph (GC) for GC measurement; and analyzing the measurement data. Since the composition and amount of the gas generated by the secondary battery vary depending not only on the type of the secondary battery but also on the conditions given to the secondary battery (such as the number of cycles, SOC, and temperature), separate analysis is necessary for each type of secondary battery, and separate collection and analysis of the gas generated by the secondary battery is necessary for each of the various conditions. In other words, the analysis of the gas generated by the secondary battery can be repeatedly performed on multiple secondary batteries.

[0008] As the number of samples increases, this repetitive work increases analyst fatigue, and human errors may also occur depending on the analyst's skill level. In addition, secondary battery analysis can be performed for a long time, and in this case, there are limitations on the analysis method performed by manual operation of the analyst.

[0009] Therefore, there is a need for an automated analysis technology that can automate gas collection in secondary batteries and GC measurement operations of the collected gas to minimize human errors and enable efficient and accurate analysis. Summary of the invention

[0010] Technical goals

[0011] The present disclosure relates to a gas analysis apparatus, and provides a gas analysis apparatus capable of individually collecting and analyzing a gas generated from each of a plurality of batteries to be analyzed using an automated system.

[0012] The technical objectives to be achieved by the present disclosure are not limited to the above-mentioned technical objectives, and those skilled in the art will clearly understand other technical objectives not mentioned from the following description.

[0013] Technical Solution

[0014] The gas analysis equipment of the present disclosure may include: a fixture portion on which the battery to be analyzed is mounted; a gas diffusion chamber, wherein the gas diffusion chamber is provided with a gas diffusion space, and the clamp portion is accommodated inside the gas diffusion space; a supply battery storage unit provided with a supply battery storage space in which a clamp portion for supply to the gas diffusion space is stored; a recovered battery storage unit provided with a recovered battery storage space in which the clamp portion recovered from the gas diffusion space is stored; a battery moving unit configured to move the jig portion from the battery supply portion to the gas diffusion space or to move the jig portion accommodated in the gas diffusion space to the battery recovery portion; a gas analysis unit configured to analyze the gas delivered from the gas diffusion space; and A gas transport flow path is configured to connect the gas diffusion space and the gas analysis unit.

[0015] Beneficial effects

[0016] The gas analysis apparatus of the present disclosure is an automated system capable of collecting and analyzing gas generated from a secondary battery by minimizing intervention of an analyst.

[0017] The gas analysis apparatus of the present disclosure is capable of independently collecting and analyzing gases of a plurality of secondary batteries with only initial settings by an analyst.

[0018] The gas analysis device of the present disclosure can perform continuous analysis even if an analyst is not waiting near the gas analysis device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a perspective view showing the gas analysis apparatus of the present disclosure.

[0020] Figure 2 is a perspective view showing a jig portion.

[0021] Figure 3 is a perspective view showing a holder portion.

[0022] Figure 4 is a cross-sectional view showing a state in which the clamper portion clamps the jig portion.

[0023] Figure 5 is a perspective view showing a supply battery storage unit.

[0024] Figure 6 is a perspective view showing a recycled battery storage unit.

[0025] Figure 7 is a perspective view showing a gas diffusion chamber. DETAILED DESCRIPTION

[0026] The gas analysis equipment of the present disclosure may include: a fixture portion on which the battery to be analyzed is mounted; a gas diffusion chamber, wherein the gas diffusion chamber is provided with a gas diffusion space, and the clamp portion is accommodated inside the gas diffusion space; a supply battery storage unit provided with a supply battery storage space in which the clamp portion for supply to the gas diffusion space is stored; a recovered battery storage unit provided with a recovered battery storage space in which the clamp portion recovered from the gas diffusion space is stored; a battery moving unit configured to move the jig portion from the battery supply portion to the gas diffusion space or to move the jig portion accommodated in the gas diffusion space to the battery recovery portion; a gas analysis unit configured to analyze the gas delivered from the gas diffusion space; and A gas transport flow path is configured to connect the gas diffusion space and the gas analysis unit.

[0027] In the gas analysis apparatus of the present disclosure, a battery receiving groove for mounting the battery to be analyzed may be formed on an upper surface of the jig part.

[0028] In the gas analysis device disclosed in the present invention, the battery moving unit may include: a clamp part, which is used to clamp the clamp part; a lifting drive part, which is used to linearly move the clamp part in a vertical direction; and a first drive part, which is used to move the clamp part in a first direction perpendicular to the vertical direction.

[0029] In the gas analysis device of the present disclosure, when the direction perpendicular to the vertical direction and the first direction is referred to as the second direction, the clamp part may include a pair of clamping members, which are constructed to clamp the clamp part by contacting each of the two side surfaces of the clamp part forming a plane perpendicular to the second direction.

[0030] In the gas analysis device of the present disclosure, a pair of clamper insertion groove portions may be formed in the clamp portion, and each of the pair of clamper insertion groove portions may be located on each of two side surfaces of the clamp portion formed as a plane perpendicular to the second direction.

[0031] In the gas analysis device of the present disclosure, each of the pair of clamper insertion groove portions may include: a first clamper insertion groove, which is formed into a long groove shape; and a second clamper insertion groove, which is formed to be spaced a predetermined distance from the first clamper insertion groove.

[0032] In the gas analysis apparatus of the present disclosure, a first protrusion to be inserted into the first holder insertion groove and a second protrusion to be inserted into the second holder insertion groove may be formed on the pair of clamping members.

[0033] In the gas analysis device of the present disclosure, the clamping part may also include a clamping actuator and a clamping main body component, wherein the clamping actuator is configured to provide a driving force to adjust the gap between the pair of clamping members, the clamping actuator and the pair of clamping members are connected to the clamping main body component, the first driving part may include a first moving member and a first guide member, wherein the first moving member is configured to move linearly in the first direction, and the first guide member is configured to guide the movement of the first moving member, the lifting and lowering driving part may include a lifting and lowering guide member and a lifting and lowering moving member, wherein the lifting and lowering guide member is connected to the first moving member, the lifting and lowering moving member is configured to move linearly along the lifting and lowering guide member in the vertical direction, and the clamping main body component may be fixed to the lifting and lowering moving member.

[0034] In the gas analysis device disclosed in the present invention, the supply battery storage unit may include: a supply battery storage part, which is provided with the supply battery storage space inside and extends in the vertical direction; and a supply battery lifting part, which is constructed to lift the clamp part in the supply battery storage space, and a battery discharge port may be formed at the upper end of the supply battery storage part, and a first clamper contact hole may be formed on each of the two side surfaces of the supply battery storage part, so that the pair of clamping members can directly contact each of the two side surfaces of the clamp part formed as a plane perpendicular to the second direction.

[0035] In the gas analysis device of the present disclosure, the recovered battery storage unit may include: a recovered battery storage part, which is provided with the recovered battery storage space inside and extends in the vertical direction; and a recovered battery lowering part, which is constructed to lower the clamp part in the recovered battery storage space, a battery recovery port may be formed at the upper end of the recovered battery storage part, and a second clamper contact hole may be formed on each of the two side surfaces of the recovered battery storage part, so that the pair of clamping members can directly contact each of the two side surfaces of the clamp part formed as a plane perpendicular to the second direction.

[0036] In the gas analysis device of the present invention, the gas diffusion chamber can be positioned to be separated from the supply battery storage unit and the recovery battery storage unit by a predetermined distance in the first direction, and the gas diffusion chamber may include: a chamber main body part, wherein a clamp part accommodating groove is formed on the upper surface of the chamber main body part, serving as the gas diffusion space; and a chamber cover part, the chamber cover part is constructed to cover the upper surface of the chamber main body part so that the gas diffusion space becomes a closed space; and the chamber cover part can be constructed to open or close the gas diffusion space by sliding in a second direction perpendicular to the vertical direction and the first direction.

[0037] In the gas analysis device disclosed in the present invention, a punching portion for perforating the battery to be analyzed may be provided on the upper surface of the chamber cover portion, and the punching needle of the punching portion may be constructed to be inserted into the gas diffusion space through the through hole of the chamber cover portion to perforate the battery to be analyzed.

[0038] In the gas analysis apparatus of the present disclosure, the gas delivery flow path may be connected to the chamber main body portion.

[0039] In the gas analysis device of the present disclosure, a manifold may be provided in the gas delivery flow path, and the gas to be delivered from the gas diffusion space through the gas delivery flow path to the gas analysis unit may be injected into the gas analysis unit after waiting in the manifold for a predetermined period of time.

[0040] Mode for Carrying Out the Invention

[0041] Hereinafter, embodiments according to the present disclosure will be described in detail with reference to the accompanying drawings. In the process, the size or shape of the components shown in the accompanying drawings may be exaggerated for clarity and convenience of description. In addition, the terms specifically defined in consideration of the configuration and operation of the present disclosure may vary according to the intention or habit of the user and operator. These terms should be defined based on the content throughout this specification.

[0042] In the description of the present disclosure, it should be noted that the orientation or positional relationship indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", "one side" and "the other side" are based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the products of the present disclosure are placed in daily use, and are merely for the purpose of explaining and briefly describing the present disclosure, and do not imply or suggest that the displayed devices or elements must be configured or operated in a specified orientation, and should not be understood as a limitation on the present disclosure.

[0043] Figure 1is a perspective view showing the gas analysis apparatus of the present disclosure. Figure 2 is a perspective view showing the clamp portion 100 . Figure 3 is a perspective view showing the holder portion 510 . Figure 4 1 is a cross-sectional view showing a state in which the clamp portion 100 is clamped by the clamp portion 510 . Figure 5 is a perspective view showing the supply battery storage unit 300 . Figure 6 is a perspective view showing a recycled battery storage unit 400 . Figure 7 is a perspective view showing the gas diffusion chamber 200 .

[0044] In the following, reference will be made to Figures 1 to 7 The gas analysis apparatus of the present disclosure is described in detail.

[0045] In the following, Figures 1 to 7 In the coordinate system shown, the z-axis direction may be the vertical direction, the x-axis direction may be the first direction, and the y-axis direction may be the second direction.

[0046] The gas analysis device disclosed herein is used to analyze the gas generated inside a secondary battery, and is capable of loading the battery 11 to be analyzed into a closed space, diffusing the gas generated from the battery 11 to be analyzed into the closed space, collecting the diffused gas, transporting the collected gas to a gas analysis unit to perform gas analysis, and unloading the battery 11 to be analyzed from the closed space after the analysis, without the need for manual work by the analyst.

[0047] Therefore, the gas analysis apparatus of the present disclosure can ensure the safety of analysts and minimize human errors caused by the manipulation of analysts during the gas collection and analysis process.

[0048] like Figure 1 As shown, the gas analysis device of the present disclosure may include: a fixture portion 100 on which a battery 11 to be analyzed is mounted; A gas diffusion chamber 200, wherein the gas diffusion chamber 200 is provided with a gas diffusion space, and the clamp part 100 is accommodated inside the gas diffusion space; a supply battery storage unit 300 provided with a supply battery storage space in which the jig portion 100 for supply to the gas diffusion space is stored; a recycled battery storage unit 400 provided with a recycled battery storage space in which the jig part 100 recycled from the gas diffusion space is stored; a battery moving unit 500 configured to move the jig part 100 from the battery supply part to the gas diffusion space or to move the jig part 100 accommodated in the gas diffusion space to the battery recovery part; a gas analysis unit configured to analyze the gas delivered from the gas diffusion space; and A gas transport flow path 290 is configured to connect the gas diffusion space and the gas analysis unit.

[0049] The gas analysis unit may be a device capable of performing quantitative and qualitative analysis on a gas using a gas chromatography (GC) analysis device, etc. For example, the gas analysis unit may be a gas chromatography / mass spectrometer (GC / MS) analysis device.

[0050] In the gas analysis apparatus of the present disclosure, the battery 11 to be analyzed may not be accommodated alone in the gas diffusion space provided inside the gas diffusion chamber 200, but may be mounted on a fixture portion 100 made of Teflon material or the like and then accommodated in the gas diffusion space.

[0051] In the gas analysis device of the present disclosure, the process of mounting the battery 11 to be analyzed on the fixture part 100 can be manually performed by the analyst, and the subsequent process can be automatically performed without any intervention of the analyst. Specifically, the process of loading the fixture part 100 into the gas diffusion chamber 200, the process of diffusing the gas into the gas diffusion space of the gas diffusion chamber 200, the process of delivering the diffused gas to the gas analysis unit, and the process of unloading the fixture part 100 from the gas diffusion chamber 200 can be automatically performed without direct manipulation by the analyst.

[0052] like Figure 2 As shown, the clamp part 100 may be made of the chemical resistant material, Teflon material as described above, and a battery receiving groove 110 for mounting the battery 11 to be analyzed may be formed on the upper surface of the clamp part 100. For example, the clamp part 100 may be formed in a rectangular parallelepiped shape.

[0053] The gas analysis device of the present disclosure is capable of sequentially analyzing a plurality of batteries 11 to be analyzed. A plurality of fixture parts 100 may also be provided so as to correspond to the number of the plurality of batteries 11 to be analyzed. Each of the plurality of batteries 11 to be analyzed may be mounted on each of the plurality of fixture parts 100. At this time, the plurality of batteries 11 to be analyzed may each be arranged in a different volume or shape. The plurality of fixture parts 100 are each arranged to have the same external shape and specification, but the size of the battery accommodating recess 110 is arranged to correspond to the specification of each of the batteries 11 to be analyzed mounted thereon, so that when the fixture part 100 is accommodated in the gas diffusion space, the volume difference of the space in which the gas is substantially diffused may be similar for each battery 11 to be analyzed.

[0054] A gas exhaust groove 130 may be formed on the upper surface of the clamp portion 100 so that the gas of the battery receiving groove 110 can be easily diffused into the gas diffusion space. One end of the gas exhaust groove 130 may be connected to the battery receiving groove 110, and the other end may be located at the edge of the clamp portion 100. Therefore, the gas of the battery receiving groove 110 may escape from the side surface of the clamp portion 100 through the gas exhaust groove 130 and diffuse into the gas diffusion space.

[0055] like Figure 3 As shown, the battery moving unit 500 may include a clamper portion 510 for clamping the clamp portion 100, a lifting driving portion 520 for linearly moving the clamper portion 510 in a vertical direction, and a first driving portion 530 for moving the clamper portion 510 in a first direction perpendicular to the vertical direction.

[0056] When the direction perpendicular to the vertical direction and the first direction is referred to as the second direction, the clamp portion 510 may include a pair of clamping members 511, which are constructed to clamp the clamp portion 100 by contacting each of the two side surfaces of the clamp portion 100 formed as a plane perpendicular to the second direction.

[0057] The pair of clamping members 511 face each other, and surfaces facing each other are formed into planes so that they can clamp the clamp part 100 by closely contacting both side surfaces of the clamp part 100 .

[0058] like Figure 4As shown, a pair of clamper insertion groove 120 portions may be formed in the clamp portion 100, and each of the pair of clamper insertion groove 120 portions may be located on each of two side surfaces of the clamp portion 100 formed as a plane perpendicular to the second direction. The clamper insertion groove 120 portion may be formed at a position facing the clamping member 511 when the clamp portion 100 is clamped by the clamp portion 510.

[0059] Each of the pair of clamper insertion groove 120 parts may include a first clamper insertion groove 121 formed in a long groove shape and a second clamper insertion groove 122 formed to be spaced apart from the first clamper insertion groove 121 by a predetermined distance. Specifically, the first clamper insertion groove 121 may be arranged in the shape of a long groove extending in the first direction. The second clamper insertion groove 122 may be formed on both sides of the first clamper insertion groove 121 to be spaced apart by a predetermined distance in the first direction. Therefore, two second clamper insertion grooves 122 may be allocated to each first clamper insertion groove 121. In other words, one fixture part 100 may be provided with two first clamper insertion grooves 121 and four second clamper insertion grooves 122.

[0060] A first protrusion 511a to be inserted into the first clamper insertion groove 121 and a second protrusion 511b to be inserted into the second clamper insertion groove 122 may be formed on the pair of clamping members 511. Specifically, the first protrusion 511a may be provided in a shape extending in the first direction to correspond to the shape of the first clamper insertion groove 121, and the second protrusion 511b may also be provided in a shape corresponding to the second clamper insertion groove 122. One first protrusion 511a and two second protrusions 511b may be formed on one clamping member 511. As described above, since the clamp portion 100 is made of a low friction material such as Teflon, when the clamp portion 100 is clamped by the clamp portion 510, the first protrusion 511a is inserted into the first clamper insertion groove 121, and the second protrusion 511b is inserted into the second clamper insertion groove 122, so that the clamp portion 100 can be stably clamped without shaking.

[0061] The clamp portion 510 may further include a clamp actuator 512 and a clamp body member 513 , wherein the clamp actuator 512 is constructed to provide a driving force to adjust the gap between the pair of clamp members 511 , and the clamp actuator 512 and the pair of clamp members 511 are connected to the clamp body member 513 .

[0062] The clamping actuator 512 may be an electric or pneumatic actuator.

[0063] The pair of clamping members 511 may be fixed to the clamper body member 513 such that they are able to slide in the second direction.

[0064] The first driving part 530 may include a first moving member 531 and a first guide member 532, wherein the first moving member 531 is constructed to move linearly in a first direction, and the first guide member 532 is constructed to guide the movement of the first moving member 531, and the lifting driving part 520 may include a lifting guide member 522 and a lifting moving member 521, wherein the lifting guide member 522 is connected to the first moving member 531, and the lifting moving member 521 is constructed to move linearly along the lifting guide member 522 in a vertical direction, wherein the clamper main body member 513 can be fixed to the lifting moving member 521.

[0065] like Figure 5 As shown, the supply battery storage unit 300 may include a supply battery storage part 310 and a supply battery lifting part 320, wherein the supply battery storage part 310 is provided with a supply battery storage space inside and extends in the vertical direction, and the supply battery lifting part 320 is constructed to lift the clamp part 100 in the supply battery storage space, wherein a battery discharge port 311 may be formed at the upper end of the supply battery storage part 310, and a first clamper contact hole 312 may be formed on each of the two side surfaces of the supply battery storage part 310, so that the pair of clamping members 511 can directly contact each of the two side surfaces of the clamp part 100 formed as a plane perpendicular to the second direction.

[0066] The supply battery storage part 310 may be configured in the shape of a square column extending in the vertical direction. In the supply battery storage space inside the supply battery storage part 310, the plurality of clamp parts 100 may be stacked and loaded in the vertical direction. The supply battery lifting part 320 may support the bottom surface of the lowest clamp part 100 among the plurality of clamp parts 100 stacked in the vertical direction. When the clamp part 510 takes out a clamp part 100 from the supply battery storage space through the battery discharge port 311, the supply battery lifting part 320 rises, and the height of the highest clamp part 100 among the plurality of clamp parts 100 located in the supply battery storage space may be lifted to an appropriate position for clamping by the clamp part 510.

[0067] The first holder contact holes 312 may be provided in pairs, and each of the pair of first holder contact holes 312 may be formed in a shape penetrating each of two planes perpendicular to the second direction of the supply battery storage portion 310. The pair of first holder contact holes 312 may be provided in a shape extending in the vertical direction, and upper ends of the pair of first holder contact holes 312 may be connected to the battery discharge port 311.

[0068] like Figure 6 As shown, the recycled battery storage unit 400 may include a recycled battery storage part 410 and a recycled battery lowering part 420, wherein the recycled battery storage part 410 is provided with a recycled battery storage space inside and extends in the vertical direction, and the recycled battery lowering part 420 is configured to lower the clamp part 100 in the recycled battery storage space, wherein a battery recycling port 411 may be formed at the upper end of the recycled battery storage part 410, and a second clamper contact hole 412 may be formed on each of the two side surfaces of the recycled battery storage part 410, so that the pair of clamping members 511 may directly contact each of the two side surfaces of the clamp part 100 formed as a plane perpendicular to the second direction.

[0069] The recycled battery storage part 410 may be provided in the shape of a square column extending in the vertical direction. In the recycled battery storage space inside the recycled battery storage part 410, the plurality of clamp parts 100 recovered from the gas diffusion chamber 200 may be stacked and loaded in the vertical direction. The recycled battery lowering part 420 may support the bottom surface of the lowest clamp part 100 among the plurality of clamp parts 100 stacked in the vertical direction. When the clamp part 510 loads the clamp part 100 in the recycled battery storage space through the battery recycling port 411, the recycled battery lowering part 420 descends, and the height of the highest clamp part 100 among the plurality of clamp parts 100 located in the recycled battery storage space may be lowered to an appropriate position for the clamp part 510 to be placed.

[0070] The second clamper contact holes 412 may be provided in pairs, and each of the pair of second clamper contact holes 412 may be formed in a shape penetrating each of two planes perpendicular to the second direction of the recycling battery storage portion 410. The pair of second clamper contact holes 412 may be provided in a shape extending in the vertical direction, and upper ends of the pair of second clamper contact holes 412 may be connected to the battery recycling port 411.

[0071] The gas diffusion chamber 200 may be positioned to be spaced apart from the supply battery storage unit 300 and the recovery battery storage unit 400 by a predetermined distance in the first direction. The clamper portion 510 may be moved between the gas diffusion chamber 200 and the supply battery storage unit 300 or between the gas diffusion chamber 200 and the recovery battery storage unit 400 by the first driving portion 530.

[0072] like Figure 7 As shown, the gas diffusion chamber 200 may include a chamber main body portion 210 and a chamber cover portion 220, wherein a clamp portion accommodating groove 211 is formed on the upper surface of the chamber main body portion 210 as a gas diffusion space, the chamber cover portion 220 is constructed to cover the upper surface of the chamber main body portion 210 so that the gas diffusion space becomes a closed space, and the chamber cover portion 220 can be constructed to open or close the gas diffusion space by sliding in a second direction perpendicular to the vertical direction and the first direction.

[0073] The sealing member insertion groove 212 may be formed on the upper surface of the chamber body part 210 around the clamp portion receiving groove 211. Specifically, the sealing member insertion groove 212 may be provided in a closed loop shape so that a sealing member such as an O-ring may be inserted, and the clamp portion receiving groove 211 may be located within the inner circumference of the sealing member insertion groove 212.

[0074] The upper surface of the chamber body part 210 and the bottom surface of the chamber cover part may be formed into flat surfaces that are completely adhered to each other.

[0075] In one embodiment, the battery moving unit may further include a second driving portion (not shown) to position the center of the clamp body member 513 of the clamp part 510 together with the center of the clamp part receiving groove 211, the center of the discharge port 311 of the supply battery storage part 310, and the center of the recovery port 411 of the recovery battery storage part 410 on an imaginary plane parallel to the first direction and the vertical direction. In other words, the second driving portion may make the center of the clamp body member 513 of the clamp part 510 and the center of the clamp part receiving groove 211, the center of the discharge port 311 of the supply battery storage part 310, and the center of the recovery port 411 of the recovery battery storage part 410 be at the same position in the second direction. The second driving portion may be installed on the first moving member 531 or the lifting moving member 521.

[0076] In another embodiment, the center of the discharge port 311 of the supply battery storage part 310, the center of the recovery port 411 of the recovery battery storage part 410, and the center of the clamp part accommodating groove 211 may be located on an imaginary plane parallel to the first direction and the vertical direction. In other words, the center of the discharge port 311 of the supply battery storage part 310, the center of the recovery port 411 of the recovery battery storage part 410, and the center of the clamp part accommodating groove 211 may be located at the same position in the second direction. Therefore, the distance between the supply battery storage unit 300 and the gas diffusion chamber 200 may be formed to be farther or closer than the distance between the recovery battery storage unit 400 and the gas diffusion chamber 200. In other words, on an imaginary straight line parallel to the first direction, they may be arranged in the order of [gas diffusion chamber 200]-[supply battery storage unit 300]-[recovery battery storage unit 400], or in the order of [gas diffusion chamber 200]-[recovery battery storage unit 400]-[supply battery storage unit 300]. In this case, the second driving part may be omitted.

[0077] A punching portion 221 for punching the battery 11 to be analyzed may be disposed on the upper surface of the chamber cover portion 220 , wherein a punching needle of the punching portion 221 may be configured to be inserted into the gas diffusion space through the through hole of the chamber cover portion 220 to punch the battery 11 to be analyzed.

[0078] The punching part 221 may move the punching needle in the vertical direction by a motor or an actuator.

[0079] The gas delivery flow path 290 may be connected to the chamber body portion 210. The gas delivery flow path 290 may include a conduit, hose, pipe, etc. through which gas may move.

[0080] A manifold may be provided in the gas delivery flow path 290 , and the gas to be delivered to the gas analysis unit from the gas diffusion space through the gas delivery flow path 290 may be injected into the gas analysis unit after waiting in the manifold for a predetermined period of time.

[0081] A gas collecting container for storing the gas diffused in the gas diffusion space, a dilution chamber for diluting the gas stored in the gas collecting container, and a vacuum pump may be connected to the manifold.

[0082] Although the embodiments according to the present disclosure have been described above, they are merely illustrative, and those skilled in the art will appreciate that various modifications and equivalent embodiments can be implemented therefrom. Therefore, the true technical protection scope of the present disclosure should be defined by the appended claims.

[0083] <Explanation of Figure Symbols> 11···battery to be analyzed, 100···clamp portion, 110···battery accommodating groove, 120···clamp insertion groove, 121···first clamp insertion groove, 122···second clamp insertion groove, 130···gas discharge groove, 200···gas diffusion chamber, 210···chamber main body portion, 211···clamp portion accommodating groove, 212···sealing member insertion groove, 220··chamber cover portion, 221···punching portion, 290···gas transport flow path, 300···supply battery storage unit, 310···supply battery storage portion, 311···battery discharge port, 312···first clamp contact hole, 320··supply battery lifting portion, 400···recovery battery storage unit, 410···recovery battery storage portion, 411···battery recovery port, 412···second clamper contact hole, 420··recovery battery lowering portion, 500···battery moving unit, 510···clamp portion, 511···clamping member, 511a···first protrusion, 511b···second protrusion, 512···clamping actuator, 513···clamping body member, 520···lifting driving portion, 521···lifting moving member, 522···lifting guide member, 530···first driving portion, 531···first moving member, 532···first guide member

[0084] Industrial Applicability

[0085] The gas analysis apparatus of the present disclosure is an automated system capable of collecting and analyzing gas generated from a secondary battery by minimizing intervention of an analyst.

[0086] The gas analysis apparatus of the present disclosure may be able to independently collect and analyze gases of a plurality of secondary batteries with only initial settings by an analyst.

[0087] The gas analysis device of the present disclosure can perform continuous analysis even if an analyst is not waiting near the gas analysis device.

Claims

1. A gas analysis device comprising: a fixture portion on which the battery to be analyzed is mounted; a gas diffusion chamber, wherein the gas diffusion chamber is provided with a gas diffusion space, and the clamp portion is accommodated inside the gas diffusion space; a supply battery storage unit provided with a supply battery storage space in which the clamp portion for supply to the gas diffusion space is stored; a recovered battery storage unit provided with a recovered battery storage space in which the jig portion recovered from the gas diffusion space is stored; a battery moving unit configured to move the jig portion from the battery supply portion to the gas diffusion space or to move the jig portion accommodated in the gas diffusion space to the battery recovery portion; a gas analysis unit configured to analyze the gas delivered from the gas diffusion space; and A gas transport flow path is configured to connect the gas diffusion space and the gas analysis unit.

2. The gas analysis device according to claim 1, wherein: A battery receiving groove for mounting the battery to be analyzed is formed on an upper surface of the jig portion.

3. The gas analysis device according to claim 1, wherein: The battery mobile unit comprises: a holder portion, the holder portion being used to hold the fixture portion; an elevating drive portion for linearly moving the clamper portion in a vertical direction; and A first driving portion is provided for moving the holder portion in a first direction perpendicular to the vertical direction.

4. The gas analysis device according to claim 3, wherein: When a direction perpendicular to the vertical direction and the first direction is referred to as a second direction, The clamper portion includes a pair of clamping members configured to clamp the clamp portion by contacting each of two side surfaces of the clamp portion formed as a plane perpendicular to the second direction.

5. The gas analysis device according to claim 4, wherein: A pair of holder insertion groove portions are formed in the clamp portion, and Each of the pair of holder insertion groove portions is located on each of both side surfaces of the clamp portion formed as a plane perpendicular to the second direction.

6. The gas analysis device according to claim 5, wherein: Each of the pair of holder insertion groove portions comprises: a first holder insertion groove formed in a long groove shape; and A second holder insertion groove is formed to be spaced apart from the first holder insertion groove by a predetermined distance.

7. The gas analysis device according to claim 6, wherein: A first protrusion and a second protrusion are formed on the pair of clamping members, wherein the first protrusion is to be inserted into the first clamper insertion groove, and the second protrusion is to be inserted into the second clamper insertion groove.

8. The gas analysis device according to claim 4, wherein: The clamp portion further includes a clamp actuator and a clamp body member, wherein the clamp actuator is configured to provide a driving force to adjust a gap between the pair of clamp members, the clamp actuator and the pair of clamp members being coupled to the clamp body member, The first driving portion includes a first moving member and a first guide member, wherein the first moving member is configured to move linearly in the first direction, and the first guide member is configured to guide movement of the first moving member. The elevating driving portion includes an elevating guide member and an elevating moving member, wherein the elevating guide member is coupled to the first moving member, the elevating moving member is configured to move linearly along the elevating guide member in the vertical direction, and The holder main body member is fixed to the lifting and lowering moving member.

9. The gas analysis device according to claim 4, wherein: The supply battery storage unit comprises: a supply battery storage portion provided with the supply battery storage space therein and extending in the vertical direction; and a supply battery lifting portion configured to lift the clamp portion in the supply battery storage space, A battery discharge port is formed at an upper end of the supply battery storage portion, and A first holder contact hole is formed on each of both side surfaces of the supply battery storage portion so that the pair of clamping members can directly contact each of both side surfaces of the clamp portion formed as a plane perpendicular to the second direction.

10. The gas analysis device according to claim 4, wherein: The recycling battery storage unit comprises: a recycled battery storage section provided with the recycled battery storage space therein and extending in the vertical direction; and a recycled battery lowering portion configured to lower the clamp portion in the recycled battery storage space, A battery recovery port is formed at an upper end of the recovery battery storage portion, and A second clamper contact hole is formed on each of both side surfaces of the recycled battery storage portion so that the pair of clamping members can directly contact each of both side surfaces of the clamp portion formed as a plane perpendicular to the second direction.

11. The gas analysis device according to claim 3, wherein: The gas diffusion chamber is positioned to be spaced apart from the supply battery storage unit and the recovery battery storage unit by a predetermined distance in the first direction, and Wherein, the gas diffusion chamber comprises: a chamber main body portion, wherein a jig portion accommodating groove is formed on an upper surface of the chamber main body portion as the gas diffusion space; and a chamber cover portion configured to cover the upper surface of the chamber body portion so that the gas diffusion space becomes a closed space, and The chamber cover portion is configured to open or close the gas diffusion space by sliding in a second direction perpendicular to the vertical direction and the first direction.

12. The gas analysis device according to claim 11, wherein: A punching portion for punching the battery to be analyzed is provided on the upper surface of the chamber cover portion, and The punching needle of the punching part is configured to be inserted into the gas diffusion space through the through hole of the chamber cover part to punch the battery to be analyzed.

13. The gas analysis device according to claim 11, wherein: The gas delivery flow path is connected to the chamber body portion.

14. The gas analysis device according to claim 13, wherein: A manifold is disposed in the gas delivery flow path, and The gas to be delivered to the gas analysis unit from the gas diffusion space through the gas delivery flow path is injected into the gas analysis unit after waiting in the manifold for a predetermined period of time.

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