Method for manufacturing an inspection device, a system including the same, and a battery module.

Abstract

According to an exemplary embodiment, an inspection apparatus is provided that includes a scanner configured to scan the resin composition on the frame to determine a three-dimensional profile of the frame and the resin composition on the frame, and an analyzer configured to determine an area of ​​the resin composition and a mass of the resin composition based on the three-dimensional profile.

Description

[Technical Field]

[0001] The present invention relates to an inspection apparatus, a system including the same, and a method for manufacturing a battery module. This application claims the interests of Korean application No. 10-2023-0018797, filed on 13 February 2023, which is referred to herein in whole. [Background technology]

[0002] Unlike primary batteries, rechargeable batteries can be charged and discharged multiple times. Rechargeable batteries are widely used as an energy source for a variety of wireless devices such as handsets, laptops, and wireless vacuum cleaners. In recent years, improvements in energy density and economies of scale have dramatically reduced the manufacturing cost per unit capacity of rechargeable batteries, and as the driving range of battery electric vehicles (BEVs) increases to levels comparable to those of fuel-powered vehicles, the primary use of rechargeable batteries is shifting from mobile devices to mobility.

[0003] As rechargeable batteries are increasingly used in mobility, the demand for their capacity is rapidly growing. This has led to research into manufacturing methods for rechargeable batteries that offer improved reliability and productivity. [Overview of the project] [Problems that the invention aims to solve]

[0004] The technical concept of this invention aims to solve the problem of providing an inspection device capable of shortening cycle time, a system including the same, and a method for manufacturing a battery module. [Means for solving the problem]

[0005] According to an exemplary embodiment of the present invention for solving the above-mentioned problems, an inspection apparatus is provided. The inspection apparatus includes a scanner configured to scan the resin composition on the frame so as to determine a three-dimensional profile of the frame and the resin composition on the frame, and an analyzer configured to determine the area and mass of the resin composition based on the three-dimensional profile.

[0006] The scanner includes a laser source configured to generate an optical signal and a detector configured to detect the optical signal reflected from the surface of the resin composition.

[0007] The above detector includes either a displacement sensor or a line diode array.

[0008] The scanner described above is a TOF (Time of Flight) scanner.

[0009] The above frame includes a bottom surface on which the above resin composition is applied.

[0010] The analyzer described above is configured to determine the area of ​​the resin composition based on the height of the three-dimensional profile relative to the bottom surface.

[0011] The analyzer described above is configured to determine the volume of the resin composition based on the three-dimensional profile described above.

[0012] The analyzer described above is configured to determine the mass of the resin composition based on the volume described above.

[0013] According to an exemplary embodiment, a system is provided that includes a resin composition coater configured to apply a resin composition onto a frame, and an inspection device configured to inspect the resin composition.

[0014] The inspection device is configured to determine the three-dimensional profile of the resin composition on the frame and to determine the area and the mass of the resin composition based on the three-dimensional profile.

[0015] It includes the steps of providing a resin composition on the frame, inspecting the resin composition, and determining the mass and area of the resin composition based on the inspection result of the resin composition.

[0016] The step of inspecting the resin composition includes determining the three-dimensional profile formed by the frame and the resin composition.

[0017] [[ID=ll]] The mass and area of the resin composition are determined based on the three-dimensional profile.

[0018] The mass of the resin composition is determined based on the volume of the resin composition.

[0019] The volume of the resin composition is determined based on the three-dimensional profile.

Advantages of the Invention

[0020] [[ID=Z7]]The inspection device according to an exemplary embodiment of the present invention can simultaneously measure the area and mass of a resin composition. Thereby, the tact time of manufacturing a battery module can be shortened.

[0021] The effects obtainable from the exemplary embodiments of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly derived and understood by those having ordinary knowledge in the technical field to which the exemplary embodiments of the present disclosure belong from the following description. That is, unintended effects associated with implementing the exemplary embodiments of the present disclosure can also be derived by those having ordinary knowledge in the technical field from the exemplary embodiments of the present disclosure.

Brief Description of the Drawings

[0022] [Figure 1] This is a block diagram illustrating a system according to an exemplary embodiment. [Figure 2a] These are drawings illustrating a resin composition coater according to an exemplary embodiment. [Figure 2b] These are drawings illustrating a resin composition coater according to an exemplary embodiment. [Figure 3a] This is a drawing illustrating an inspection apparatus according to an exemplary embodiment. [Figure 3b] This is a drawing illustrating an inspection apparatus according to an exemplary embodiment. [Figure 3c] This is a drawing illustrating an inspection apparatus according to an exemplary embodiment. [Figure 4a] These are drawings illustrating a resin composition coater according to another exemplary embodiment. [Figure 4b] These are drawings illustrating a resin composition coater according to another exemplary embodiment. [Figure 5] This is a flowchart illustrating a method for manufacturing a battery module according to an exemplary embodiment. [Figure 6a] This is a perspective view showing the battery module. [Figure 6b] Figure 6a is an exploded perspective view of the battery module. [Modes for carrying out the invention]

[0023] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Before that, however, the terms and words used herein and in the claims should not be construed to be limited to their ordinary or dictionary meanings, but rather to be interpreted as meanings and concepts consistent with the technical idea of ​​the present invention, based on the principle that an inventor may appropriately define the concepts of terms in order to best describe his own invention.

[0024] Therefore, the embodiments described herein and the configurations shown in the drawings represent only one of the most preferred embodiments of the present invention and do not represent the entire technical concept of the present invention; there are various equivalents and modifications that can substitute for them at the time of filing.

[0025] Furthermore, in describing the present invention, if it is determined that a specific description of a related known configuration or function would likely obscure the gist of the invention, such detailed description will be omitted.

[0026] Since embodiments of the present invention are provided to more fully explain the invention to an ordinary person, the shapes and sizes of components in the drawings may be exaggerated, omitted, or shown schematically for the sake of clarity. Accordingly, the sizes and proportions of each component do not fully reflect the actual sizes and proportions.

[0027] Figure 1 is a block diagram illustrating a system 1000 according to an exemplary embodiment.

[0028] Referring to Figure 1, the system 1000 may include a resin composition coater 1100 and an inspection device 1200.

[0029] System 1000 can perform at least part of the process for manufacturing a secondary battery. System 1000 can perform at least part of the process for manufacturing a battery module 100 (see Figure 6a). System 1000 may be configured to perform the process of applying a resin composition 130 (see Figure 2a) onto a frame 110 (see Figure 2a) and to inspect the resin composition 130 (see Figure 2a).

[0030] System 1000 may further include a transfer system 1300 for transferring workpieces processed by the resin composition coater 1100 to an inspection device 1200. The transfer system 1300 is synchronized with the operation of the resin composition coater 1100 and can transfer workpieces that have completed the dispensing process to the inspection device 1200. The transfer system 1300 may be controlled by a supervisory control system and can transfer workpieces to the inspection device 1200 without operator intervention. This can reduce the tact time for secondary battery manufacturing and improve productivity. The transfer system 1300 may transfer the workpieces back to the resin composition coater 1100 if, as a result of inspection by the inspection device 1200, additional processes (e.g., additional application of resin composition 130 (see Figure 2a)) are required.

[0031] System 1000 may further include a buffer for temporarily storing the workpiece between the resin composition coater 1100 and the inspection device 1200.

[0032] Figures 2a and 2b are drawings illustrating a resin composition coater 1100 according to an exemplary embodiment. More specifically, Figure 2a is a plan view of the resin composition coater 1100, and Figure 2b is a front view of the resin composition coater 1100.

[0033] Referring to Figures 2a and 2b, the resin composition coater 1100 may include a jig 1110 and a dispenser 1120. The jig 1100 may be configured to support the frame 110. The jig 1100 may hold the frame 110 in place while the resin composition 130 is being coated. This may allow the resin composition 130 to be precisely coated onto the set portion of the frame 110, improving the reliability of the dispensing process.

[0034] The dispenser 1120 may be configured to dispense the resin composition 130. The resin composition 130 can fix the cell block 120 (see Figure 6b) to the frame 110, as described later. This allows the resin composition 130 to be precisely applied to the intended mounting position of the cell block 120 (see Figure 6b) on the frame 110.

[0035] The frame 110 can support the elements of the battery module. The battery module can be provided by sequentially assembling the elements of the battery module on the frame 110. The frame 110 may include a metallic material such as aluminum.

[0036] The frame 110 may include a bottom surface 110B and side walls 110W. This allows the frame 110 to have a U-shape when viewed from the front. Two directions substantially parallel to the bottom surface 110B of the frame 110 are defined as the X and Y directions, and the direction substantially perpendicular to the bottom surface 110B of the frame 110 is defined as the Z direction. Each of the X, Y, and Z directions may be substantially perpendicular to one another.

[0037] The side walls 110W may be located at both ends of the base surface 110B. The side walls 110W may extend along the X direction and may be substantially perpendicular to the Y direction. The side walls 110W may have a predetermined height in the Z direction from the base surface 110B. As a non-restrictive example, the X-direction length of the frame 110 may be longer than the Y-direction length of the frame 110. Hereinafter, the X direction may be referred to as the longitudinal direction of the frame 110, and the Y direction may also be referred to as the width direction of the frame 110.

[0038] According to exemplary embodiments, the resin composition 130 may be a two-component resin composition. According to exemplary embodiments, the resin composition 130 may comprise a main component (Part A), a curing agent (Part B), a dispersant, and an inorganic filler. The resin composition 130 may further comprise viscosity modifiers such as thixotropy-inducing agents, diluents, surface treatment agents, and coupling agents.

[0039] The resin composition 130 may be a room-temperature curing composition. That is, the curing reaction of the resin composition 130 can start and proceed at room temperature.

[0040] As non-restrictive examples, the main component of resin composition 130 may be any one of silicone resin, polyol resin, epoxy resin, and acrylic resin. The curing agent for resin composition 130 may be selected according to the main component of resin composition 130. For example, if the main component of resin composition 130 is silicone resin, the curing agent may be a siloxane compound; if the main component of resin composition 130 is polyol resin, the curing agent may be an isocyanate compound; if the main component of resin composition 130 is epoxy resin, the curing agent may be an amine compound; and if the main component of resin composition 130 is acrylic resin, the curing agent may be an isocyanate compound.

[0041] The inorganic filler of the resin composition 130 may have relatively high thermal conductivity. According to an exemplary embodiment, the thermal conductivity of the inorganic filler of the resin composition 130 may be about 1 W / mK or higher. According to an exemplary embodiment, the thermal conductivity of the inorganic filler of the resin composition 130 may be 5 W / mK or higher. According to an exemplary embodiment, the thermal conductivity of the inorganic filler of the resin composition 130 may be 10 W / mK or higher. According to an exemplary embodiment, the thermal conductivity of the inorganic filler of the resin composition 130 may be about 15 W / mK or higher.

[0042] According to exemplary embodiments, the inorganic filler of resin composition 130 may include ceramics. For example, the inorganic filler of resin composition 130 may include any one of aluminum oxide (Al2O3), aluminum nitride (AlN), boron nitride (BN), silicon nitride (Si3N4), silicon carbide (SiC), beryllium oxide (BeO), zinc oxide (ZnO), aluminum hydroxide (Al(OH)3), and boehmite. Resin composition 130 may also include a carbon filler. Resin composition 130 may also include, for example, any one of fumed silica, clay, and calcium carbonate.

[0043] The dispersant in the resin composition 130 can improve the dispersibility of the inorganic filler in the resin composition 130. This allows the inorganic filler in the resin composition 130 to be distributed uniformly.

[0044] Figures 3a and 3b are diagrams illustrating an inspection apparatus 1200 according to an exemplary embodiment. More specifically, Figure 3a is a plan view of the inspection apparatus 1200, and Figure 3b is a front view of the inspection apparatus 1200.

[0045] Referring to Figures 3a and 3b, the inspection apparatus 1200 may include a fixture 1210, a scanner 1220, and an analyzer 1230. The fixture 1210 may be configured to support the frame 110. The fixture 1210 may fix the frame 110 in place while the resin composition 130 is being inspected. This may prevent the frame 110 from moving while the resin composition 130 is being inspected, thereby improving the reliability of the inspection.

[0046] The scanner 1220 may be, for example, a line scanner. The scanner 1220 may be configured to inspect the resin composition 130 while moving along the X direction. The scanner 1220 may be configured to sense the three-dimensional structure of the resin composition. The scanner 1220 may be configured to sense the three-dimensional profile formed by the frame 110 and the resin composition 130. The three-dimensional profile of the frame 110 and the resin composition 130 may be a set of points that are physically exposed to the outside in the structure formed by the frame 110 and the resin composition 130 applied on the frame. According to an exemplary embodiment, the reference point in sensing the three-dimensional profile may be the bottom surface 110B of the frame 110.

[0047] The analyzer 1230 may be configured to determine the area, volume, and mass of the resin composition 130 based on the inspection results of the scanner 1220. The analyzer 1230 may also be configured to determine the area, volume, and mass of the resin composition 130 based on the three-dimensional profiles of the frame 110 and the resin composition 130 sensed by the scanner 1220.

[0048] The analyzer 1230 may be configured to determine the applied location and area of ​​the resin composition 130 based on the three-dimensional profile formed by the frame 110 and the resin composition 130. The analyzer 1230 may also be configured to determine the volume of the resin composition 130 based on the three-dimensional profile formed by the frame 110 and the resin composition 130. The volume of the resin composition 130 may be calculated by integraling the height of the resin composition 130 within the location determined by the analyzer 1230. For example, the volume V of the resin composition 130 may be determined by the following mathematical formula.

[0049]

number

[0050] Here, h is the height of the resin composition 130, dx is the small displacement in the X direction, and dy is the small displacement in the Y direction.

[0051] The analyzer 1230 may be configured to determine the mass of the resin composition 130 based on its volume. The mass of the resin composition 130 may be calculated by a calculation (e.g., product) of the density of the resin composition 130 and the volume of the resin composition 130 determined by the analyzer 1230.

[0052] The analyzer 1230 may be a computing device such as a workstation computer, desktop computer, laptop computer, or tablet computer. The analyzer 1230 may consist of separate hardware or separate software contained within a single piece of hardware. The analyzer 1230 may be a processor composed of simple controllers, a microprocessor, a complex processor such as a CPU or GPU, software, dedicated hardware, or firmware. The analyzer 1230 may be embodied, for example, by a general-purpose computer or application-specific hardware such as a DSP (Digital Signal Processor), FPGA (Field Programmable Gate Array), and ASIC (Application Specific Integrated Circuit).

[0053] According to some embodiments, the operation of the analyzer 1230 may be embodied as instructions stored on a machine-readable medium that can be read and executed by one or more processors. Here, the machine-readable medium may include any mechanism for storing and / or transmitting information in a form readable by a machine (e.g., a computing device). For example, the machine-readable medium may include ROM (Read Only Memory), RAM (Random Access Memory), magnetic disk storage media, optical storage media, flash memory devices, electrical, optical, acoustic or other forms of radio signals (e.g., carrier waves, infrared signals, digital signals, etc.) and any other signals.

[0054] The analyzer 1230 may be configured with firmware, software, routines, and instructions to perform the operations described for the analyzer 1230, or any of the processes described below. However, this is for illustrative purposes only, and it should be understood that the operations of the analyzer 1230 described above can also be caused by computing devices, processors, controllers, or other devices that execute firmware, software, routines, instructions, etc.

[0055] Figure 3c is a diagram illustrating an inspection apparatus 1220 according to an exemplary embodiment.

[0056] The inspection device 1220 may include a laser source 1221, an imaging lens 1223, and a detector 1225. The laser source 1221 may generate and emit an optical signal for sensing a three-dimensional profile. The optical signal emitted from the laser source 1221 may be reflected from the surface of the object under inspection (OT), focused by the imaging lens 1223, and then reach the detector 1225. The detector 1225 may include either a displacement sensor or a line diode array.

[0057] The inspection device 1220 can determine the height h of the surface of the object under inspection from a reference plane based on the position where the light signal reflected from the surface of the object under inspection is focused on the detector 1225. As a non-limiting example, the reference point for height h may be the bottom surface 110B (see Figure 3b) of the frame 110 (see Figure 3b).

[0058] The surface height h of the object under inspection can be calculated based on the displacement δx between the position where the light signal reflected from the surface of the object under inspection is focused onto the detector 1225 and the reference position of the detector 1225, and the angle θ between the laser source 1221 and the detector 1225. Here, the angle θ can be defined as the angle between the optical axis of the laser source 1221 and the optical axis of the detector 1225 in the free-space optical system of the inspection device 1220.

[0059] The above describes an example in which the inspection device 1220 is a displacement sensor type, but this does not limit the technical idea of ​​the present invention in any way. The inspection device 1220 may also be a TOF (Time of Flight) scanner. Here, the TOF scanner can measure the distance from the TOF scanner to the object to be inspected by irradiating the object to be inspected with a signal and measuring the time it takes for the signal reflected from the object to be sensed again. The signal from the TOF scanner may be one of the following: an optical signal, a radio wave signal, or a terahertz wave signal.

[0060] Figures 4a and 4b are drawings illustrating a resin composition coater 1101 according to another exemplary embodiment. More specifically, Figure 4a is a plan view of the resin composition coater 1101, and Figure 4b is a front view of the resin composition coater 1101.

[0061] Referring to Figures 4a and 4b, the resin composition coater 1101 may further include a scanner 1220 and an analyzer 1230, in addition to the jig 1110 and dispenser 1120.

[0062] The jig 1110 and dispenser 1120 may be substantially the same as those described with reference to Figures 2a and 2b. The scanner 1220 and analyzer 1230 may be substantially the same as those described with reference to Figures 3a and 3b.

[0063] According to an exemplary embodiment, the resin composition coater 1101 includes a scanner 1220 and an analyzer 1230 so that the resin composition 130 can be inspected immediately after dispensing without separate transfer. This can shorten the cycle time for battery module manufacturing.

[0064] The resin composition coater 1101 may include a drive mechanism for moving the dispenser 1120. The drive mechanism may provide space for scanning by the scanner 1220 by moving the dispenser 1120 after it has completed the dispensing process.

[0065] Figure 5 is a flowchart illustrating a method for manufacturing a battery module according to an exemplary embodiment.

[0066] Figure 6a is a perspective view showing the battery module 100.

[0067] Figure 6b is an exploded perspective view of the battery module 100 shown in Figure 6a.

[0068] Referring to Figures 5 to 6b, the resin composition 130 can be provided on the frame 110 at P110. The resin composition 130 can be provided by the resin composition coater 1100 shown in Figures 2a and 2b.

[0069] The battery module 100 is an assembly of battery cells including cell blocks 120 and a frame 110 on which the cell blocks 120 are mounted. The battery module 100 may further include a resin composition 130, an adhesive 141, a compression pad 143, a front bus / FPCB (Flexible Printed Circuit Board) (hereinafter, B / F) assembly 151, a rear B / F assembly 153, an FFC (Flat Flexible Cable) assembly 155, a front end plate assembly 161, a rear end plate assembly 163, a terminal cover 165, and a top plate 170.

[0070] The cell block 120 may contain multiple battery cells. Typically, the cell block 120 contains 8 to 12 battery cells, and recently, expanded modules containing 24 or more battery cells have been presented.

[0071] A battery cell is the basic unit of a lithium-ion battery, or secondary battery. A battery cell includes an electrode assembly, electrolyte, and case. Battery cells are classified into lithium-ion batteries, lithium-ion polymer batteries, and lithium polymer batteries based on the configuration of the electrode assembly and electrolyte. Lithium-ion polymer batteries are easier to manufacture due to their lower electrolyte leakage potential, and their prevalence in secondary batteries is increasing.

[0072] Battery cells are classified according to the shape of the battery case into cylindrical batteries, where the electrode assembly is housed in a cylindrical metal can; rectangular batteries, where the electrode assembly is housed in a rectangular metal can; and pouch batteries, where the electrode assembly is housed in a pouch case made of aluminum laminate sheet.

[0073] The electrode assembly housed in the battery case includes a positive electrode, a negative electrode, and a separator membrane interposed between the positive and negative electrodes. Electrode assemblies are classified into jelly roll type and stack type depending on their assembly configuration. The jelly roll type consists of a rolled positive electrode, a negative electrode, and a separator membrane interposed between them. The stack type includes multiple positive electrodes, multiple negative electrodes, and multiple separator membranes interposed between them, stacked sequentially.

[0074] The positive electrode may include a positive electrode current collector and a positive electrode active material. The negative electrode may include a negative electrode current collector and a negative electrode active material.

[0075] The thickness of the positive electrode current collector can range from approximately 3 μm to approximately 500 μm. The positive electrode current collector may not induce chemical changes in the final manufactured secondary battery and may have high conductivity. The positive electrode current collector may include, for example, stainless steel, aluminum, nickel, titanium, calcined carbon, and aluminum. The positive electrode current collector may also include stainless steel surface-treated with carbon, nickel, titanium, silver, etc. The surface of the positive electrode current collector may include a micro-textured structure to enhance the adhesion of the active material. The positive electrode current collector may be in the form of a film, sheet, foil, net, porous material, foam, nonwoven fabric, etc.

[0076] The thickness of the negative electrode current collector can range from approximately 3 μm to approximately 500 μm. The negative electrode current collector may not induce chemical changes in the final manufactured secondary battery and may have high conductivity. The negative electrode current collector may include copper, stainless steel, aluminum, nickel, titanium, calcined carbon, and aluminum-cadmium alloys. The negative electrode current collector may also include stainless steel surface-treated with carbon, nickel, titanium, silver, etc. The surface of the negative electrode current collector may include a micro-textured structure to enhance the adhesion of the active material. The negative electrode current collector may be in the form of a film, sheet, foil, net, porous material, foam, nonwoven fabric, etc.

[0077] The positive electrode active material is a substance capable of undergoing electrochemical reactions. The positive electrode active material can be a lithium transition metal oxide. Examples of positive electrode active materials include layered compounds such as lithium cobalt oxide (LiCoO2) and lithium nickel oxide (LiNiO2) substituted with one or more transition metals; lithium manganese oxide substituted with one or more transition metals; and materials with the chemical formula LiNi 1-y M y Lithium nickel oxide represented by O2 (where M is one of Co, Mn, Al, Cu, Fe, Mg, B, Cr, Zn, and Ga, and 0.01 ≤ y ≤ 0.7); Li 1+z Ni 1 / 3 Co 1 / 3 Mn1 / 3 O2, Li 1+z Ni 0.4 Mn 0.4 Co 0.2 Li such as O2 1+z Ni b Mn c Co 1-(b+c+d) M d O (2-e) A e (where -0.5 ≤ z ≤ 0.5, 0.1 ≤ b ≤ 0.8, 0.1 ≤ c ≤ 0.8, 0 ≤ d ≤ 0.2, 0 ≤ e ≤ 0.2, b + c + d < 1, M is any one of Al, Mg, Cr, Ti, Si, and Y, and A is any one of F, P, and Cl) lithium nickel cobalt manganese composite oxide; chemical formula Li 1+x M 1-y M’ y PO 4-z X z (where M is a transition metal, more specifically, any one of Fe, Mn, Co, and Ni, M’ is any one of Al, Mg, and Ti, X is any one of F, S, and N, -0.5 ≤ x ≤ +0.5, 0 ≤ y ≤ 0.5, 0 ≤ z ≤ 0.1) and may include olivine-type lithium metal phosphate represented by

[0078] The negative electrode active material may include carbon such as graphitizable carbon and graphite-based carbon. The negative electrode active material may be, for example, Li x Fe2O3 (0 ≤ x ≤ 1), Li x WO2 (0 ≤ x ≤ 1), Sn x Me 1-x Me’ y O z(Here, Me is any one of Mn, Fe, Pb, and Ge, Me' is any one of Al, B, P, Si, Group 1, Group 2, Group 3 elements of the periodic table, and halogen; 0 < x ≤ 1; 1 ≤ y ≤ 3; 1 ≤ z ≤ 8), etc., may include metal composite oxides. The negative electrode active material may include, for example, lithium metal; lithium alloy; silicon-based alloy; tin-based alloy. The negative electrode active material may include, for example, metal oxides such as SnO, SnO2, PbO, PbO2, Pb2O3, Pb3O4, Sb2O3, Sb2O4, Sb2O5, GeO, GeO2, Bi2O3, Bi2O4, Bi2O5. The negative electrode active material may include, for example, conductive polymers such as polyacetylene; Li-Co-Ni-based materials, etc.)

[0079] Subsequently, at P120, the resin composition 130 can be inspected. The inspection of the resin composition 130 can be performed by the inspection apparatus 1200 in FIGS. 3a and 3b. By inspecting the resin composition 130, the three-dimensional profile formed by the frame 110 and the resin composition 130 can be determined.

[0080] Subsequently, at P130, the mass and area of the resin composition 130 can be determined. Then, it can be determined whether the mass and area of the resin composition 130 are within the normal range. Since it is substantially the same as that described with reference to FIGS. 3a to 3c, the overlapping description thereof is omitted. If the mass and area of the resin composition 130 are out of the normal range at P130, it is NG, and the resin composition 130 can be provided again by returning to P110.

[0081] If the mass and area of the resin composition 130 are within the normal range at P130, it is G, and at P140, the cell block 120 can be coupled to the frame 110. Before coupling the cell block 120 to the frame 110, the compression pad 143, the front B / F assembly 151, the rear B / F assembly 153, and the FFC assembly 155 can be coupled to the cell block 120.

[0082] The cell block 120 can be bonded to the frame 110 by the resin composition 130. The cell block 120 can be mounted on the frame 110 so as to overlap with the resin composition 130. The frame 110 can cover the bottom and both sides of the cell block 120. The bottom surface of the cell block 120 can face the resin composition 130 and the bottom surface 110B of the frame 110. The resin composition 130 can be interposed between the frame 110 and the cell block 120.

[0083] The compression pads 143 can be fixed to the cell block 120 by adhesive 141. The adhesive 141 may be of the spray type. The compression pads 143 can be placed on each of the two sides of the cell block 120. Each of the compression pads 143 may cover the side of the cell block 120.

[0084] The front B / F assembly 151 and the rear B / F assembly 153 can provide electrical paths for transmitting control and sensing signals and for charging and discharging power to multiple battery cells of the cell block 120. The front B / F assembly 151 can be coupled to the front of the cell block 120, and the rear B / F assembly 153 can be coupled to the rear of the cell block 120.

[0085] The front B / F assembly 151 and the rear B / F assembly 153 can be connected to each other by the FFC assembly 155. The FFC assembly 155 can be positioned on the upper surface of the cell block 120.

[0086] The resin composition 130 can fix the frame 110 and the cell block 120. This can improve the mechanical reliability of the battery module 100. The cured resin composition 130 can be a Thermal Interface Material (TIM) and can mediate heat between the frame 110 and the cell block 120. This can effectively dissipate the heat generated by the cell block 120, improving the operational reliability of the battery module 100.

[0087] The present invention has been described in more detail above through the drawings and embodiments. However, the configurations described in the drawings or embodiments described herein are merely one embodiment of the present invention and do not represent the entire technical concept of the present invention. Therefore, there may be various equivalents and modifications that can substitute for them at the time of filing.

Claims

1. A scanner configured to scan the resin composition on the frame in order to determine the three-dimensional profile of the frame and the resin composition on the frame, An analyzer configured to determine the area and mass of the resin composition based on the three-dimensional profile, Inspection equipment for the manufacture of secondary batteries, including...

2. The aforementioned scanner, A laser source configured to generate an optical signal, A detector configured to detect the light signal reflected from the surface of the resin composition, and The inspection apparatus for manufacturing a secondary battery according to claim 1, wherein the detector includes one of a displacement sensor and a line diode array.

3. The inspection apparatus for manufacturing a secondary battery according to claim 1, wherein the scanner is a TOF scanner.

4. The frame includes a bottom surface on which the resin composition is applied. The inspection apparatus for manufacturing a secondary battery according to claim 1, wherein the analyzer is configured to determine the area of ​​the resin composition based on the height of the three-dimensional profile with respect to the bottom surface.

5. An inspection apparatus for manufacturing a secondary battery according to any one of claims 1 to 4, wherein the analyzer is configured to determine the volume of the resin composition based on the three-dimensional profile.

6. The inspection apparatus for manufacturing a secondary battery according to claim 5, wherein the analyzer is configured to determine the mass of the resin composition based on the volume.

7. A resin composition coater configured to apply a resin composition onto a frame, The present invention includes an inspection device configured to inspect the resin composition, and A system for manufacturing a secondary battery, wherein the inspection apparatus is configured to determine a three-dimensional profile of the frame and the resin composition on the frame, and to determine the area and mass of the resin composition based on the three-dimensional profile.

8. The steps include providing a resin composition on a frame, A step of inspecting the resin composition, A step of determining the mass and area of ​​the resin composition based on the inspection results of the resin composition, Includes, The step of inspecting the resin composition includes determining the three-dimensional profile formed by the frame and the resin composition. A method for manufacturing a battery module, wherein the mass and area of ​​the resin composition are determined based on the three-dimensional profile.

9. A method for manufacturing a battery module according to claim 8, wherein the mass of the resin composition is determined based on the volume of the resin composition.

10. A method for manufacturing a battery module according to claim 9, wherein the volume of the resin composition is determined based on the three-dimensional profile.

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