KR20210112481A - Align Jig For Battery Cell and Cartridge, and Method Of Assembling Battery Module - Google Patents

Abstract

The present invention relates to a jig for aligning a battery cell and cartridge to align the cartridge and the battery cells to fixed positions and a battery module assembly method using the same. More specifically, the jig is a jig for aligning one or more battery cells and one or more cartridges in the vertical direction. The battery cell includes a cell case accommodating an electrode assembly, and a pair of electrode leads having one side connected to the electrode assembly and having the other side protruding to the outside of the cell case by a predetermined length and having a guide hole formed therein. The cartridge includes: a pair of vertical frames facing each other while being spaced apart by a predetermined distance; a pair of horizontal frames connecting the upper and lower ends of the pair of vertical frames, respectively; and a pair of fasteners extending, by a predetermined height, toward the upper part near an edge where the upper part of the pair of vertical frames and the horizontal frame meet and having a fastening hole. The jig for alignment includes: a jig body having an area and thickness sufficient to allow the battery cells and cartridges to be mounted therein; a first guide pin protruding above the jig body to pass by a predetermined height through the fastening hole of the cartridge; and a second guide pin protruding above the jig body by a predetermined height to pass through the guide hole of the electrode lead.

Description

A jig for aligning battery cells and cartridges and a method of assembling a battery module using the same

The present invention relates to a jig for aligning battery cells and cartridges and a battery module assembly method using the same, and more particularly, to a jig capable of accurately aligning one or more battery cells and one or more cartridges, and assembling a battery module using the jig it's about how

As technology development and demand for mobile devices such as cell phones, laptops, camcorders, and digital cameras increase, technologies related to rechargeable batteries that can be charged and discharged are becoming active. In addition, secondary batteries are an alternative energy source for fossil fuels that cause air pollutants, and are being applied to electric vehicles (EVs), hybrid electric vehicles (HEVs), plug-in hybrid electric vehicles (P-HEVs), and the like. The need for development is increasing day by day.

Currently commercialized secondary batteries include nickel cadmium batteries, nickel hydride batteries, nickel zinc batteries, and lithium secondary batteries. Among them, lithium secondary batteries have almost no memory effect compared to nickel-based secondary batteries, so charging and discharging are free and easy. , the self-discharge rate is very low and the energy density is high.

On the other hand, when the secondary battery as described above is used in a device requiring a large capacity and high voltage, such as an electric vehicle, it is used in the form of a battery module or battery pack having a structure in which a plurality of battery cells are arranged.

1 is an exploded perspective view of the battery module according to the prior art, the battery cell according to the prior art of FIG. 2 is seated in the cartridge, (a) is a plan view, (b) is a front view.

As shown in Figure 1, the battery module is a plurality of battery cells 11 and cartridges 12 are stacked, and a pair of end plates 13 are mounted on the outer periphery of the battery module is fixed with a separate fastening rod. It is common.

At this time, the battery cell 11 is seated in the storage space of the cartridge 12, and the battery cells are located unbalanced to one side in the storage space, or the electrode leads are not properly aligned between the battery cells. .

As described above, when the cartridge 12 and the battery cells 11 are misaligned out of a predetermined position, coupling between the bus bar (not shown) and the electrode lead may be difficult, and there is a possibility that an accident may occur due to poor contact. have.

On the other hand, Korean Patent Application Laid-Open No. 2017-0043313 discloses a plurality of secondary batteries arranged in the left and right directions in an up-down direction, electrode leads protruding in at least one of the front and rear directions, and fastening holes formed in the electrode leads; and a plurality of unit frames configured to be stackable in the left and right directions, both ends of which are interconnected to surround the rim of the secondary battery, and provided with a fastening protrusion on at least one unit frame in which the electrode lead is positioned Thus, there is disclosed a battery module including a cartridge in which the fastening protrusion is inserted into the fastening hole of the electrode lead.

According to the prior literature, there is an advantage that the battery cell can be positioned relatively accurately in the cartridge by forming a fastening protrusion on the cartridge and forming a fastening hole on the electrode lead, but manufacturing cost increases as the fastening protrusion is formed on all cartridges In addition, there is a problem in that the energy density of the battery module is inevitably lowered due to an increase in weight.

Korean Patent Publication No. 2017-0043313

An object of the present invention is to provide an alignment jig capable of aligning a cartridge and battery cells to a predetermined position in order to solve the above problems.

Another object of the present invention is to provide a method for assembling a battery module that minimizes an increase in manufacturing cost and does not cause a decrease in energy density.

In the jig for aligning battery cells and cartridges according to the present invention for solving the above problems, as an alignment jig for aligning one or more battery cells 100 and one or more cartridges 200 in a vertical direction, the The battery cell 100 includes a cell case 110 accommodating an electrode assembly, and a pair of one side connected to the electrode assembly and the other side protruding a predetermined length to the outside of the cell case 110 and having a guide hole 121 formed therein. It includes an electrode lead 120, and the cartridge 200 is a pair of vertical frames 210 facing each other while being spaced apart by a predetermined distance, and a pair of connecting the upper and lower ends of the pair of vertical frames 210, respectively. of the horizontal frame 220 and the pair of vertical frames 210, a pair of fasteners 230 extending a predetermined height toward the upper portion near the corner where the upper end and the horizontal frame 220 meet and having a fastening hole 231 formed therein. ), wherein the alignment jig includes a jig body 310 having an area and thickness sufficient to seat the battery cell 100 and the cartridge 200, and a predetermined height above the jig body 310 The first guide pin 320 protrudes and passes through the fastening hole 231 of the cartridge 200 , and the guide hole 121 of the electrode lead 120 protrudes a predetermined height above the jig body 310 . It is characterized in that it includes a second guide pin (330) penetrating.

In addition, in the jig for aligning the battery cell and the cartridge according to the present invention, a third guide pin 340 for supporting the edge of the battery cell 100 and the cartridge 200 is further provided on the jig body 310 . It is characterized in that it is provided.

In addition, in the jig for aligning the battery cell and the cartridge according to the present invention, the first step portion along the width direction of the jig body 310 with the upper part open so that the fixing band 400 can be seated on the jig body 310 . (311) is characterized in that it is formed.

In addition, in the jig for aligning the battery cell and the cartridge according to the present invention, two or more first step portions 311 are formed while being spaced apart by a predetermined distance.

In addition, in the jig for aligning the battery cell and the cartridge according to the present invention, the jig body 310 has an open upper portion so that the aligned battery cell 100 and the cartridge 200 can be separated from the jig body 310 , It is characterized in that the second step portion 312 recessed to a predetermined depth is formed.

In addition, in the jig for aligning the battery cell and the cartridge according to the present invention, the second step portion 312 is characterized in that it is positioned near the center of gravity of the battery cell 100 and the cartridge 200 .

In addition, in the jig for aligning the battery cell and the cartridge according to the present invention, at least one of the first guide pin 320 and the second guide pin 330 is detachably coupled to the jig body 310 . characterized.

In addition, in the jig for aligning the battery cell and the cartridge according to the present invention, the first guide pin 320 includes a first guide part 321 in close contact with the fastening hole 231 of the cartridge 200 and the jig body ( It is composed of a first coupling part 322 coupled to the 310, and the jig body 310 is characterized in that a first hole 313 for accommodating the first coupling part 322 is formed.

In addition, in the jig for aligning the battery cell and the cartridge according to the present invention, the first coupling part 322 and the first hole 313 are characterized in that they are attached and detached by a male-female screw fastening method or a forced press-fit method.

In addition, in the jig for aligning the battery cell and the cartridge according to the present invention, the second guide pin 330 includes a second guide part 331 in close contact with the guide hole 121 of the electrode lead 120 and the jig body. It is composed of a second coupling part 332 coupled to the 310, and the jig body 310 is characterized in that a second hole 314 for accommodating the second coupling part 332 is formed.

In addition, in the jig for aligning the battery cell and the cartridge according to the present invention, the second coupling part 332 and the second hole 314 are attached and detached by a male and female screw fastening method or a forced press fit method.

In addition, in the jig for aligning the battery cell and the cartridge according to the present invention, the second guide pin 330 is made of an insulating material.

In addition, the method for aligning battery cells and cartridges according to the present invention using a jig for alignment of battery cells and cartridges includes the step of seating one or more cartridges and one or more battery cells on the upper surface of the jig body, the cartridge being seated In this case, the first guide pin 320 of the jig body 310 passes through the fastening hole 231 of the cartridge, and in the stage in which the battery cell is seated, the second guide pin 330 of the jig body 310 is inserted into the battery cell. It is characterized in that it passes through the guide hole 121 .

In addition, the method for assembling a battery module according to the present invention using a jig for aligning battery cells and cartridges includes a first step of seating the fixing band 400 on the first step 311 of the jig body; a second step of seating one or more cartridges and one or more battery cells on the upper surface of the jig body; A third step of fixing the battery module assembly consisting of one or more cartridges and one or more battery cells seated with a fixing band (400); a fourth step of separating the battery module assembly from the jig body while being fixed to the fixing band 400; A fifth step of fastening the fasteners of the cartridge in a state of being fixed to the fixing band 400; and a sixth step of separating the fixing band 400 .

Also, in the battery module assembly method according to the present invention, when the cartridge is seated, the first guide pin 320 of the jig body 310 passes through the fastening hole 231 of the cartridge, and when the battery cell is seated, the jig The second guide pin 330 of the body 310 passes through the guide hole 121 of the battery cell.

According to the jig for aligning the battery cell and the cartridge and the battery module assembly method using the same according to the present invention, a guide hole is formed in the electrode lead of the battery cell, and a second guide pin penetrating the guide hole is provided on the upper surface of the jig body, Therefore, there is an advantage in that it is possible to prevent misalignment of the electrode leads when a plurality of battery cells are aligned.

In addition, according to the jig for aligning the battery cell and the cartridge and the battery module assembly method using the same according to the present invention, a first guide pin passing through the fastening hole of the cartridge is provided on the upper surface of the jig body, so that the battery cell is positioned inside the cartridge It has the advantage of being able to precisely control

In addition, according to the jig for aligning the battery cell and the cartridge and the battery module assembly method using the same according to the present invention, even if the diameter of the guide hole of the electrode lead or the fastening hole of the cartridge is changed, the guide pin is detachable, so the manufacturing cost of the jig is reduced. There is an advantage that you can.

In addition, according to the jig for aligning battery cells and cartridges and the battery module assembly method using the same according to the present invention, since the aligned battery module assembly is fixed with a fixing band and then separated from the jig body, the misalignment between the battery cells and the cartridge can be fundamentally blocked. It has the advantage of being able to

1 is an exploded perspective view of a battery module according to the prior art.
2 is a state in which a battery cell according to the prior art is seated in a cartridge, (a) is a plan view, (b) is a front view.
3 is a perspective view of a battery cell according to the present invention.
4 is a perspective view of a cartridge according to the present invention;
5 is a perspective view of a jig for alignment according to a first preferred embodiment of the present invention.
6 is a perspective view of a jig for alignment according to a second preferred embodiment of the present invention.
7 is a cross-sectional view of a jig for alignment according to a third preferred embodiment of the present invention.
8 is a perspective view for explaining a method of aligning a battery cell and a cartridge using a jig for alignment according to a second preferred embodiment of the present invention.
9 is a perspective view for explaining a method of temporarily fixing the battery cells and cartridges using the alignment jig according to the second preferred embodiment of the present invention, and then temporarily fixing them.
10 is a perspective view for explaining a process of manufacturing a battery module assembly by fastening the battery cell and the cartridge assembly temporarily fixed by FIG. 9 with a fastener.

In the present application, terms such as “comprises”, “have” or “include” are intended to designate that the features, numbers, steps, components, parts, or combinations thereof described in the specification exist, and are intended to indicate that one or more other It is to be understood that this does not preclude the possibility of the presence or addition of features or numbers, steps, operations, components, parts, or combinations thereof.

In addition, the same reference numerals are used throughout the drawings for parts having similar functions and functions. Throughout the specification, when a part is said to be connected to another part, it includes not only a case in which it is directly connected, but also a case in which it is indirectly connected with another element interposed therebetween. In addition, the inclusion of a certain component does not exclude other components unless otherwise stated, but means that other components may be added.

Hereinafter, a jig for aligning a battery cell and a cartridge according to the present invention and a method for assembling a battery module using the same will be described with reference to the accompanying drawings.

3 is a perspective view of a battery cell according to the present invention. The battery cell 100 of the present invention includes a cell case 110 , an electrode assembly (not shown), and an electrode lead 120 .

The electrode assembly constituting the battery cell 100 is a jelly-roll-type assembly having a structure in which a separator is interposed between a long sheet-shaped positive electrode and a negative electrode and then wound, or a rectangular positive and negative electrode stacked in a state with a separator interposed therebetween. A stack-type assembly consisting of unit cells having a structure of It may be made of a type assembly or the like, but is not limited thereto.

The cell case 110 typically has a laminate sheet structure of an inner layer/metal layer/outer layer. Since the inner layer is in direct contact with the electrode assembly, it must have insulation and electrolyte resistance, and for sealing with the outside, the sealing property, that is, the sealing portion where the inner layers are thermally bonded to each other, must have excellent thermal bonding strength. The material of the inner layer may be selected from polyolefin resins such as polypropylene, polyethylene, polyethylene acrylic acid, polybutylene, etc., polyurethane resins and polyimide resins having excellent chemical resistance and good sealing properties, but is not limited thereto, Polypropylene excellent in mechanical properties such as tensile strength, rigidity, surface hardness, and impact resistance and chemical resistance is the most preferable.

The metal layer in contact with the inner layer corresponds to a barrier layer that prevents moisture or various gases from penetrating into the battery from the outside.

And an outer layer is provided on the other side of the metal layer, and this outer layer can use a heat-resistant polymer excellent in tensile strength, moisture permeability and air permeability to secure heat resistance and chemical resistance while protecting the electrode assembly, As an example, nylon or polyethylene terephthalate may be used, but is not limited thereto.

The electrode lead 120 is made of a pair of electrode leads, that is, a positive electrode lead and a negative electrode lead, and after the positive electrode tab and the negative electrode tab of the electrode assembly are electrically connected to each other, it may have a structure exposed to the outside of the cell case 110, , the positive electrode lead and the negative electrode lead may be directly connected to the electrode assembly without the positive electrode tab and the negative electrode tab.

Meanwhile, a guide hole 121 is formed in the electrode lead 120 . Specifically, one guide hole 121 having a predetermined size and shape is formed in each of the anode lead and the cathode lead exposed to the outside of the cell case 110 . These guide holes 121 are used to accurately align without distortion or misalignment when assembling a battery module assembly by stacking a plurality of one or more battery cells 100 and one or more cartridges to be described later. do.

Here, although the guide holes 121 are illustrated as being provided one by one in a circular shape, this is only an example, and it is obvious that the shape and number can be changed.

4 is a perspective view of a cartridge according to the present invention; The cartridge 200 for accommodating the battery cell 100 is configured to include a pair of vertical frames 210 , a pair of horizontal frames 220 , and a pair of fasteners 230 .

Specifically, a pair of vertical frames 210 are positioned to face each other while being spaced apart by a predetermined distance, and a pair of horizontal frames 220 are connected to each of these upper and lower ends, and the upper part of the vertical frame 210 and the horizontal frame ( The fasteners 230 are provided so as to extend a predetermined height toward the top in each vicinity of the corners where 220) meet.

And the fastener 230 is formed with a fastening hole 231 through which a fastening rod for firmly fixing the aligned battery module assembly passes, and the cartridge 200 having the above configuration corresponds to a known technology, so the specific A description will be omitted.

5 is a perspective view of a jig for alignment according to a first preferred embodiment of the present invention. The alignment jig 300 according to the first embodiment is configured to include a jig body 310 , a first guide pin 320 , a second guide pin 330 , and a third guide pin 340 .

Specifically, the jig body 310 on which one or more battery cells 100 and one or more cartridges 200 are seated preferably has an area equal to or slightly larger than these areas. The overall appearance is not particularly limited, but the upper surface in close contact with the battery cell 100 or the cartridge 200 preferably has a shape similar to these, for example, when the battery cell 100 and the cartridge 200 are rectangular, the jig body 310 may also be a rectangle.

The first guide pin 320 is formed to protrude a predetermined height above the jig body 310 so as to pass through the fastening hole 231 of the cartridge 200 .

Here, the outer diameter of the first guide pin 320 should be slightly smaller than the diameter of the fastening hole 231 of the cartridge 200, but as much as possible to minimize the positional deviation between the plurality of cartridges 200 when they are aligned. (231) It is preferable to approximate the diameter.

And the number of the first guide pin 320 formed is preferably the same as the fastening hole 231 of the cartridge 200, but is not limited thereto. For example, if there are two fastening holes 231 of the cartridge 200 shown in FIG. 3 , it is preferable that there are also two first guide pins 320 , but the cartridge 200 has four fastening holes 231 . In this case, 2 to 4 may be sufficient.

The second guide pin 330 is formed to protrude a predetermined height above the jig body 310 so as to pass through the guide hole 121 of the battery cell 100 .

The outer diameter of the second guide pin 330 is similar to the above-described first guide pin 320 , the diameter of the guide hole 121 as much as possible to minimize the positional deviation between the plurality of battery cells 100 when they are aligned. Preferably, the number of formation is the same as the number of guide holes 121 of the battery cell 100 as much as possible.

The third guide pin 340 is for supporting the corners of the battery cell 100 and the cartridge 200, and it is preferable that two guide pins are provided for each corner, and the first guide pin 320 and the second guide pin ( Like 330), the jig body 310 is provided to protrude at a predetermined height.

The first guide pin 320 passing through the guide hole 121 of the battery cell 100 is preferably made of an insulating material, and the jig body 310 constituting the alignment jig 300, the first guide pin ( 320), the second guide pin 330, and the third guide pin 340 are all preferably made of an insulating material, which is to prevent an unexpected accident due to energization when aligning the plurality of battery cells 100. .

Briefly describing a method of aligning a battery cell and a cartridge using the alignment jig according to the first embodiment as described above, one or more cartridges and one or more battery cells are seated on the upper surface of the jig body.

At this time, when the cartridge is seated, the first guide pin 320 of the jig body 310 passes through the fastening hole 231 of the cartridge, and in the stage in which the battery cell is seated, the second guide pin of the jig body 310 ( The plurality of cartridges 200 and the battery cells 100 are vertically aligned as the 330 passes through the guide holes 121 of the battery cells.

Here, the arrangement order of the cartridge 200 and the battery cell 100 is not particularly limited. For example, the cartridge, the battery cell, the battery cell, may be repeatedly arranged in the order of the cartridge, it may also be arranged in the order of the battery cell, the cartridge, the battery cell, the cartridge, the battery cell.

another end plate, a cartridge, a battery cell, a battery cell, a cartridge, the other end plate, or an end plate, a battery cell, a cartridge, a battery cell, a battery cell, a cartridge, a battery cell, in the order of the other end plate It can be aligned, and if necessary, a cooling plate, an elastic pad can be added.

6 is a perspective view of a jig for alignment according to a second preferred embodiment of the present invention. Except for the configuration of the jig body 310, since it is the same as the above-described first embodiment, the following description will be focused on the jig body 310 having a different configuration.

A first step portion 311 and a second step portion 312 are additionally provided in the jig body 310 according to the second embodiment.

Specifically, the first step portion 311 may be formed in the jig body 310 along the width direction of the jig body 310 with the upper part open so that the fixing band 400 can be seated.

A plurality of battery cells 100 and cartridges 200 are precisely aligned by the first guide pin 320 to the third guide pin 330, but these battery module assemblies of which the alignment is completed are aligned with a jig 300 for alignment. There is a possibility that misalignment may occur due to negligence when separating from it.

However, in the second embodiment, the above-described problem can be solved. That is, after the fixing band 400 is seated in advance on the first step part 311 , when the alignment of the predetermined number of battery cells 100 and the cartridge 200 is finished, the battery module assembly is temporarily fixed with the fixing band 400 . Since they are separated from the alignment jig 300 after fixing, it is possible to reliably block their misalignment.

On the other hand, it is preferable that the first step portion 311 is one, and it is more preferable that the first step portion 311 is provided in two or more spaced apart from each other by a predetermined interval so as to more stably fix the battery module assembly.

If the aligned battery module assembly can be fixed, the material and shape of the fixing band 400 are not particularly limited, but it is preferable that the Velcro is formed so that the fixing band 400 can be quickly fixed and the bound fixing band 400 can be easily released.

A pair of second step portions 312 with an open top and recessed to a predetermined depth are useful when separating the aligned battery module assembly from the alignment jig 300 . That is, since the operator's hand (not shown) or a separate tool (not shown) can be inserted into the second step part 312 , it is very easy to lift the battery module assembly.

On the other hand, so that the battery module assembly is not inclined to either side, a pair is provided while facing each other so as to be perpendicular to the center of gravity of the aligned battery cells 100 and cartridge 200 , for example, a pair of vertical frames 210 . desirable.

7 is a cross-sectional view of a jig for alignment according to a third preferred embodiment of the present invention. Except for the configuration of the first guide pin 320, the second guide pin 330, and the third guide pin 340, it is the same as the above-described first embodiment, so hereinafter, the guide pin having a different configuration will be mainly described. do.

The guide pin according to the third embodiment is configured to be detachable from the jig body 310 .

The size of the battery cell and the cartridge may be changed according to the required battery capacity, and accordingly, the guide hole formed in the electrode lead and the fastening hole of the cartridge may also be changed.

In the third embodiment, it is possible to use one jig body 310 while exchanging a plurality of guide pins having different outer diameters.

Specifically, the first guide pin 320 has a first guide part 321 in close contact with the fastening hole 231 of the cartridge 200, and the first guide part 321 and the jig body ( It is composed of a first coupling part 322 coupled to the 310 , and a first hole 313 accommodating the first coupling part 322 is formed in the jig body 310 . Therefore, even if the diameter of the fastening hole 231 of the cartridge 200 is changed, only the first guide pin 320 can be replaced and the jig body 310 can be used as it is, thereby reducing the jig purchase or manufacturing cost.

Also in the case of the second guide pin 330 , the second guide part 331 is in close contact with the guide hole 121 of the electrode lead 120 , and the second coupling part 332 is coupled to the jig body 310 . The jig body 310 has a second hole 314 accommodating the second coupling part 332 is formed, so that only the second guide pin 330 is replaced like the first guide pin 320 described above. do.

Although not shown in the drawings, the third guide pin 340 may also have the same configuration.

On the other hand, in FIG. 7 , the first coupling part 322 and the first hole 313 , the second coupling part 332 and the second hole 314 are shown to be fastened or separated by a male and female screw fastening method, This is only an example, and a forced press-fitting type may be used.

Next, a method of assembling the battery module after aligning the battery cells and the cartridge using the alignment jig according to the second embodiment will be described.

8 is a perspective view for explaining a method of aligning a battery cell and a cartridge using an alignment jig according to a second preferred embodiment of the present invention, and FIG. 9 is an alignment jig according to a second preferred embodiment of the present invention. After aligning the battery cells and cartridges using an oblique view for explaining a method of temporarily fixing them, and FIG. 10 is a battery module assembly by fastening the battery cells and the cartridge assembly temporarily fixed by FIG. This is a diagram to explain the manufacturing process.

Specifically, the first step of seating the fixing band 400 on the first stepped portion 311 of the jig body 310, one or more cartridges 200 and one or more battery cells 100 on the upper surface of the jig body 310. A second step of seating the battery module assembly consisting of the seated one or more cartridges 200 and one or more battery cells 100 with the fixing band 400, the third step of fixing the fixed band 400 A fourth step of separating the furnace battery module assembly from the jig body 310, a fifth step of fastening the fasteners 230 of the cartridge 200 while being fixed to the fixing band 400, and the fixing band 400 It may include a sixth step of separating.

In the first and second steps, as described above, when the cartridge 200 is seated, the first guide pin 320 of the jig body 310 passes through the fastening hole 231 of the cartridge, and the battery cell When the 100 is seated, the second guide pin 330 of the jig body 310 passes through the guide hole 121 of the battery cell 100 .

And fastening the fasteners 230 using the fastening rod 500 in the fifth step, for example, the fastening rod 500 may be a long bolt 510 and a nut 520, but is not limited thereto.

Also, as described above, the alignment order of the cartridge 200 and the battery cell 100 is not particularly limited, and between the first step and the second step and/or between the second step and the third step, the end plate and/or Alternatively, the step of mounting the insulating plate may be further performed, and the cooling plate and the elastic pad may be additionally seated in the second step.

In addition, although the embodiments have been separately described for convenience, it is obvious that the above-described embodiments can be implemented in combination with each other.

As the specific part of the present invention has been described in detail above, for those of ordinary skill in the art, these specific descriptions are only preferred embodiments, and the scope of the present invention is not limited thereby, It is obvious to those skilled in the art that various changes and modifications can be made within the scope and spirit of the present invention, and it is natural that such variations and modifications fall within the scope of the appended claims.

100: battery cell
110: cell case
120: electrode lead
121: information hall
200: cartridge
210: vertical frame
220: horizontal frame
230: fastener
231: fastening hole
300: jig for alignment
310: jig body
311: first step 312: second step
313: first hole 314: second hole
320: first guide pin
321: first guide part 322: first coupling part
330: second guide pin
331: second guide part 332: second coupling part
340: third guide pin
400: fixed band
410: fixed part
500: fastening rod
510: volt
520: nut

Claims (15)

An alignment jig for vertically aligning one or more battery cells and one or more cartridges, comprising:
The battery cell includes a cell case for accommodating the electrode assembly, and a pair of electrode leads having one side connected to the electrode assembly and the other side protruding a predetermined length to the outside of the cell case and having a guide hole,
The cartridge includes a pair of vertical frames facing each other while being spaced apart by a predetermined distance, a pair of horizontal frames connecting the upper and lower ends of the pair of vertical frames, respectively, and the corner where the pair of vertical frames and the horizontal frame meet It includes a pair of fasteners extending from the vicinity toward the upper part by a predetermined height and having a fastening hole,
The alignment jig includes a jig body having an area and thickness sufficient to seat the battery cell and the cartridge, a first guide pin protruding a predetermined height above the jig body and penetrating a fastening hole of the cartridge, and the A jig for aligning a battery cell and a cartridge, characterized in that it includes a second guide pin protruding a predetermined height above the jig body and penetrating the guide hole of the electrode lead.
According to claim 1,
A jig for aligning a battery cell and a cartridge, characterized in that a third guide pin for supporting the edge of the battery cell and the cartridge is further provided on the upper portion of the jig body.
According to claim 1,
The battery cell and cartridge alignment jig, characterized in that the first step is formed along the width direction of the jig body with the upper part open so that the fixing band can be seated on the jig body.
4. The method of claim 3,
A jig for aligning the battery cell and the cartridge, characterized in that two or more first step portions are spaced apart from each other by a predetermined distance.
5. The method of claim 4,
The jig body for alignment of battery cells and cartridges, characterized in that the upper part is opened and a second step recessed to a predetermined depth is formed in the jig body to separate the aligned battery cells and cartridges from the jig body.
6. The method of claim 5,
The second step jig for alignment of the battery cell and the cartridge, characterized in that located near the center of gravity of the battery cell and the cartridge.
According to claim 1,
Any one or more of the first guide pin and the second guide pin is a jig for aligning a battery cell and a cartridge, characterized in that it is coupled to the jig body so as to be detachably attached.
8. The method of claim 7,
The first guide pin is composed of a first guide portion in close contact with the fastening hole of the cartridge and a first coupling portion coupled to the jig body,
A jig for aligning a battery cell and a cartridge, characterized in that the first hole for accommodating the first coupling part is formed in the jig body.
9. The method of claim 8,
The jig for aligning the battery cell and cartridge, characterized in that the first coupling part and the first hole are detachably attached to and detached from the male and female screw fastening method or the forced press fitting method.
8. The method of claim 7,
The second guide pin is composed of a second guide portion in close contact with the guide hole of the electrode lead and a second coupling portion coupled to the jig body,
A jig for aligning a battery cell and a cartridge, characterized in that a second hole for accommodating the second coupling part is formed in the jig body.
11. The method of claim 10,
The second coupling portion and the second hole is a jig for aligning the battery cell and cartridge, characterized in that the attachment and detachment by a male-female screw fastening method or a forced press-fit method.
According to claim 1,
The second guide pin is a jig for aligning the battery cell and the cartridge, characterized in that made of an insulating material.
In the method of aligning the battery cell and the cartridge using the jig for aligning the battery cell and the cartridge according to claim 1,
Comprising the step of seating one or more cartridges and one or more battery cells on the upper surface of the jig body,
In the stage where the cartridge is seated, the first guide pin of the jig body passes through the fastening hole of the cartridge,
In the step in which the battery cell is seated, the second guide pin of the jig body passes through the guide hole of the battery cell.
In the method of assembling a battery module using the jig for aligning the battery cell and the cartridge according to claim 6,
A first step of seating the fixing band on the first step portion of the jig body;
a second step of seating one or more cartridges and one or more battery cells on the upper surface of the jig body;
A third step of fixing the battery module assembly consisting of one or more cartridges and one or more battery cells seated with a fixing band;
a fourth step of separating the battery module assembly from the jig body while being fixed to the fixing band;
A fifth step of fastening the fasteners of the cartridge in a state fixed to the fixing band; and
A method of assembling a battery module comprising a sixth step of separating the fixing band.
15. The method of claim 14,
When the cartridge is seated, the first guide pin of the jig body passes through the fastening hole of the cartridge,
A battery module assembly method, characterized in that when the battery cell is seated, the second guide pin of the jig body passes through the guide hole of the battery cell.

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