KR20200015066A - Apparatus for charge/discharge secondary battery - Google Patents

Abstract

A secondary battery charging and discharging device according to an embodiment of the present invention comprises: a chamber accommodating a plurality of battery cells therein; a shelf disposed inside the chamber and withdrawn from the chamber in a sliding manner; and a connection device including a tab terminal which is coupled to an electrode tab of the battery cell and fixed to the shelf, and a fixed terminal disposed in the chamber. In the connection device, when the shelf is fully coupled to the chamber, the tab terminal is coupled to the fixed terminal.

Description

Secondary battery charge and discharge device {APPARATUS FOR CHARGE / DISCHARGE SECONDARY BATTERY}

The present invention relates to a device for charging and discharging a secondary battery.

Types of secondary batteries currently widely used include lithium ion batteries, lithium polymer batteries, nickel cadmium batteries, nickel hydrogen batteries, nickel zinc batteries and the like. The operating voltage of such secondary battery cells, that is, unit battery cells is about 2.5V to 4.2V. Therefore, when a higher output voltage is required, a battery pack may be configured by connecting a plurality of battery cells in series.

Secondary batteries may have different output characteristics depending on the surrounding environmental conditions. For example, the output characteristics of the secondary battery may vary depending on an ambient temperature state or whether external shock or vibration is applied to the secondary battery. Therefore, it is necessary to confirm in advance what output characteristics the secondary battery exhibits under environmental conditions in which the secondary battery is actually used.

To this end, the secondary battery is tested to determine the output characteristics under various environmental conditions during the manufacturing process.

In general, a test of a battery cell is performed by arranging a plurality of battery cells in a chamber, creating an environment inside the chamber as a specific environment, charging and discharging the battery cells in the relevant environment, and measuring an operating state of the battery cell.

However, for the test, the electrodes of the battery cells in the chamber must be electrically connected to a control device outside the chamber. Therefore, whenever the battery cell is placed inside the chamber or the battery cells that have been tested are removed from the chamber, the electrode of the battery cell needs to be connected / disconnected with the connection terminal inside the chamber, which causes a lot of time to prepare for the test. .

In particular, in the case of testing large battery cells, the above problem is further exacerbated.

Accordingly, there is a need in the art for a secondary battery charge / discharge device that can easily arrange or connect battery cells.

However, the object of the present invention is not limited thereto, and even if not explicitly stated, the object or effect which can be grasped from the solution means or embodiment of the problem described below will be included.

A secondary battery charging and discharging device according to an embodiment of the present invention is coupled to a chamber accommodating a plurality of battery cells therein, a shelf disposed in the chamber and drawn out from the chamber in a sliding manner, and an electrode tab of the battery cell. And a connecting device including a tab terminal fixed to the shelf and a fixed terminal disposed in the chamber, wherein the connecting device is coupled to the fixed terminal when the shelf is fully coupled to the chamber.

In the present embodiment, the fixed terminal has a stopper for integrally coupling the two fixed plate and the two fixed play, the tab terminal is inserted into the insertion space formed between the two fixed plate and the fixed Can be coupled to the terminal.

In the present exemplary embodiment, the fixing plate may include a protrusion protruding toward the insertion space, and the tab terminal may include a coupling groove into which the protrusion is inserted when inserted into the insertion space.

In the present embodiment, the stopper may include a support member including a shaft disposed through the two fixing plates and a flange disposed at both ends of the shaft, and an elastic member disposed between the flange and the fixing plate. Can be.

In the present exemplary embodiment, the tab terminal may include two electrode plates and may be coupled to the electrode tab such that the electrode tab is disposed between the two electrode plates.

In the present embodiment, it may further include a fixing device fixed to the shelf to limit the movement of the battery cell by pressing the tab terminal.

In the present embodiment, the fixing device is fixed to the shelf and the body having an inner space for receiving the tab terminal and the pressure coupled to the body and pressing the tab terminal disposed in the inner space toward the shelf side It may include a device.

In the present embodiment, the shelf may further include a support part coupled to a lower part of the shelf to support the shelf when the shelf is withdrawn from the chamber.

In the present embodiment, the support portion may be formed in the form of a foldable leg, one end of which is rotatably coupled to the shelf.

In the present embodiment, the other end of the support may be inserted into a support groove formed in the ground or the chamber to support the shelf.

In the present embodiment, the support portion may be formed in a flat plate shape, one side of which is coupled to the shelf and the other side of which is movable to the chamber.

In the present embodiment, when the shelf is withdrawn, the other side of the support moves downward along the rail formed in the chamber, and one side of the support may support the shelf at the center of the shelf.

In the present embodiment, it may further include a connection cable connected to the other electrode tab of the battery cell to electrically connect the other electrode tab and the chamber.

In the present exemplary embodiment, the shelf may include a frame coupled to the chamber to allow sliding movement, and a support plate seated on the frame and having a plurality of through holes formed therein.

In the present embodiment, the chamber may include an air inlet for supplying air into the chamber for adjusting the temperature of the inside of the chamber, and an air outlet for discharging air in the chamber to the outside.

According to an embodiment of the present invention, since the shelf is withdrawn from the chamber in a sliding manner, it is easy to mount the battery cells on the shelf. In addition, after mounting of the battery cells is completed, the electrode tabs of the respective battery cells are electrically connected to the control device by simply pushing the shelves completely into the charging and discharging device. Therefore, the electrical connection of the battery cells is very easy.

1 is a perspective view schematically showing a charge and discharge device according to an embodiment of the present invention.
FIG. 2 is a front view of the charging / discharging device of FIG. 1.
3A and 3B are cross-sectional views taken along line II ′ of FIG. 2.
4a and 4b are sectional views taken along the line II-II 'of FIG.
5 is an exploded perspective view of the shelf shown in FIG. 1;
6 is a perspective view schematically showing the fixing device shown in FIG.
7 is a perspective view schematically showing a charge and discharge device according to another embodiment of the present invention.
8 is a perspective view schematically showing a charging and discharging device according to another embodiment of the present invention.
9 is a perspective view schematically showing a charge and discharge device according to another embodiment of the present invention.
10 and 11 schematically show the inner wall of the chamber shown in FIG. 9;
12 is a perspective view schematically showing a charge and discharge device according to another embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. However, embodiments of the present invention may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below.

In addition, embodiments of the present invention are provided to more completely explain the present invention to those skilled in the art. Therefore, the shape and size of the elements in the drawings may be exaggerated for more clear description, elements represented by the same reference numerals in the drawings are the same elements. In this specification, terms such as 'top', 'top', 'top', 'bottom', 'bottom', 'bottom', and 'side' are based on the drawings, and in fact, elements or components are arranged. It may vary depending on the direction.

1 is a perspective view schematically showing a charge and discharge device according to an embodiment of the present invention, Figure 2 is a front view of the charge and discharge device shown in FIG. 3A and 3B are cross-sectional views taken along line II ′ of FIG. 2, and FIGS. 4A and 4B are cross-sectional views taken along line II-II ′ of FIG. 2. 3B and 4B illustrate a state in which the shelf is pulled out of the chamber. In addition, Figure 5 is an exploded perspective view of the shelf shown in Figure 1, Figure 6 is a perspective view schematically showing the fixing device shown in FIG.

1 to 6, the charge / discharge device 100 of the present embodiment includes a chamber 10 in which a battery cell 80 is disposed.

The chamber 10 maintains an internal temperature at a predetermined predetermined temperature, and is configured to be sealed to the outside for this purpose. The chamber 10 of the present invention may be used in the chemical conversion process of the battery cells 80, and thus, the battery cells may be charged or discharged through aging or charging / discharging of the manufactured battery cells 80 as well as the charge / discharge test of the battery cells. It can be understood as a space for activating 80. Therefore, it may be configured in the form of a walk-in chamber as well as a small chamber.

The chamber 10 may be made of a metal material, but is not limited thereto. In addition, the front of the chamber 10 is provided with a door 11, the door 11 may be provided with a transparent window for checking the state of the battery cells 80 in the chemical conversion process.

The chamber 10 is provided with an air inlet 12a and an air outlet 12b.

The air inlet 12a is a passage through which air is introduced into the chamber 10, and the air outlet 12b is a passage through which air inside the chamber 10 is discharged to the outside of the chamber 10.

Air flowing in and out through the air inlet 12a and the air outlet 12b is used to control the temperature inside the chamber 10.

At least one shelf 20, a connecting device 40, and a fixing device 30 are provided inside the chamber 10.

The shelf 20 is coupled to the chamber 10 to be movable in a sliding manner.

In this embodiment, the shelf 20 is coupled to the chamber 10 via the sliding rail 13. Here, the sliding rail 13 includes all kinds of rails used for drawers of furniture. However, the configuration of the present invention is not limited thereto. For example, a variety of modifications are possible, such as forming a groove in the inner wall of the chamber 10, forming a protrusion on the side of the shelf 20, and inserting the protrusion into the groove to slide the shelf 20.

As shown in FIG. 5, the shelf 20 of the present embodiment may include a frame 24 and a support plate 22.

The frame 24 may be configured in various forms as long as it can be coupled to the sliding rail 13 while firmly supporting the support plate 22. In the present embodiment, the frame 24 is divided into a frame 24 in the form of a grid is used, but is not limited thereto.

The frame 24 may be formed of a metal material. However, the present invention is not limited thereto, and may be made of various materials as long as it is not easily deformed by the temperature inside the tester chamber 10 in the chemical conversion process and can stably support the battery cells 80 disposed on the support plate 22. have.

The support plate 22 is seated on the top of the frame 24 and has a plurality of through holes 23 therein. The through hole 23 is used as a passage through which air in the chamber 10 flows. Therefore, the plurality of through holes 23 are evenly distributed throughout the support plate 22, and the air introduced into the chamber 10 through the air inlets 12a is lowered to the bottom of the shelf 20 through the through holes 23. After use, it is discharged through the air outlet 12b.

In order to prevent a short circuit between the battery cell 80 and the frame 24, the support plate 22 may be formed of an insulating material (for example, a resin material). However, the present invention is not limited thereto, and various modifications may be made by applying an insulating material to one surface of the metal plate.

When the connecting device 40 mounts the shelf 20 inside the chamber 10, the electrical connection between the chamber 10 and the battery cells 80 disposed on the shelf 20 inside the chamber 10 is collectively performed. It is provided to be made as an enemy.

To this end, the connection device 40 includes a fixed terminal 42 fixedly installed in the chamber 10, and a tab terminal 45 coupled to the battery cell 80.

The fixed terminal 42 is disposed on one surface (for example, a rear surface) facing the door 11 in the chamber 10, and is electrically connected to a control device (not shown) disposed outside the chamber 10. Here, the control device may be a device that is electrically connected to the battery cell 80 to apply a voltage to the battery cell 80 and measure the state of the battery cell.

The fixing terminal 42 includes two fixing plates 42a and 42b coupled to face each other as shown in FIG. 4B and a stopper 49 for limiting a distance from which the fixing plates 42a and 42b are spaced apart. Include.

The two fixing plates 42a and 42b are coupled in such a way that the gap between the fixing plates 42a and 42b increases toward the door 11 side. Accordingly, an insertion space S into which the tab terminal 45 to be described later is inserted is formed between the fixing plates 42a and 42b.

A portion of the fixing plates 42a and 42b forming the insertion space S is configured to be in surface contact with the tab terminal 45 to be described later. Therefore, the part which forms the insertion space S is formed in the shape corresponding to the part inserted in the insertion space S among the tab terminals 45. FIG.

In addition, at least one of the fixing plates 42a and 42b may include a protrusion 41 protruding toward the insertion space S. The projection 41 is inserted into the coupling groove 48 formed in the tab terminal 45 when the tab terminal 45 is inserted into the insertion space S. Therefore, the protrusion 41 is formed in a shape corresponding to the size and shape of the coupling groove 48.

The stopper 49 presses the fixing plates 42a and 42b in a direction in which the fixing plates 42a and 42b are in close contact with each other when the two fixing plates 42a and 42b are spaced apart from each other.

When the tab terminal 45 is inserted into the insertion space S, the fixing plates 42a and 42b are spaced apart by the force applied from the tab terminal 45 and the insertion space S is expanded. At this time, the distance from which the fixing plates 42a and 42b are spaced apart is limited by the stopper 49.

To this end, the stopper 49 of the present embodiment includes a support member 43 and an elastic member 44.

The support member 43 includes a shaft 43a disposed through the fixing plates 42a and 42b and a flange 43b disposed at both ends of the shaft 43a.

The elastic member 44 is disposed between the flange 43b and the fixing plates 42a and 42b to suppress the fixing plates 42a and 42b from moving to the flange 43b side.

Accordingly, when the tab terminal 45 is inserted into the insertion space S, the fixing plates 42a and 42b press the tab terminals 45 by the elastic member 44, thereby fixing plates 42a and 42b. ) May firmly make surface contact with the tab terminal 45.

A bolt and a nut may be used as the support member 43 constituting the stopper 49, and a coil spring may be used as the elastic member 44. However, the configuration of the present invention is not limited thereto.

The tab terminal 45 is coupled to the electrode tab 81a of the battery cell 80.

In this embodiment, the tab terminal 45 includes two electrode plates 45a and 45b. The two electrode plates 45a and 45b are coupled to the battery cell 80 such that the electrode tab 81a is interposed therebetween. In this case, the two electrode plates 45a and 45b may be coupled through a fixing member such as a bolt.

As described above, the tab terminal 45 is inserted into the insertion space S of the fixed terminal 42. At this time, the portion of the electrode plate 45a, 45b inserted into the insertion space S is formed as an inclined surface so that the tab terminal 45 can be firmly contacted with the fixing plates 42a and 42b. For example, the electrode plates 45a and 45b may be configured to become thinner as they move away from the battery cell 80. However, it is not limited thereto.

At least one coupling groove 48 may be formed on the inclined surface of the tab terminal 45. As described above, the protrusions 41 provided on the fixing plates 42a and 42b are coupled to the coupling grooves 48, so that the tab terminals 45 coupled to the fixing terminals 42 are easily removed from the fixing terminals 42. It is not separated.

The connection device 40 configured as described above is configured such that the tab terminal 45 is completely coupled to the insertion space S of the fixed terminal 42 when the shelf 20 is completely coupled in the chamber 10. Therefore, even if a plurality of battery cells 80 are arranged on the shelf 20, the electrode tabs 81a of the battery cells 80 may be moved by simply pushing the shelf 20 into the chamber 10. Can be electrically connected

The fixing device 30 fixes the battery cell 80 to the shelf 20.

The fixing device 30 is fixedly coupled to the shelf 20 and presses the tab terminal 45 into which the electrode tab 81a is inserted to fix the battery cell 80 to the shelf 20.

To this end, as shown in FIG. 6, the fixing device 30 includes a body 31 coupled to the shelf 20, and a pressing device 35 for pressing the tab terminal 45.

The body 31 may be formed in a rectangular tubular shape with an empty inside. For example, the body 31 has a lower body 31a seated on the shelf 20, a side portion 31c extending vertically upward from both ends of the lower body 31a, and a side portion parallel to the lower body 31a. It may be divided into an upper body (31b) disposed at the end of (31c).

Accordingly, the body 31 is provided with an empty space therein. The tab terminal 45 is disposed in the internal space of the body 31. Therefore, the inner space of the body 31 is configured to have a wider width than the tab terminal 45.

The press device 35 includes a press plate 32 and a moving member 34 for moving the press plate 32.

The pressing plate 32 is disposed inside the body 31 to be movable in the vertical direction of the body 31. And the moving member 34 is coupled to the body 31 to move the pressure plate 32 in the body 31.

In the present embodiment, the moving member 34 is configured in the form of a bolt and disposed to penetrate the upper body 31b. And screwed with the upper body (31b) and the pressure plate 32 is coupled to the end.

Therefore, when the moving member 34 is rotated in the screw direction, the pressing plate 32 moves up or down with the moving member 34.

When the tab terminal 45 is disposed between the lower body 31a and the pressure plate 32, the fixing device 30 configured as described above moves the pressure plate 32 downward to move the tab terminal 45 to the shelf 20. ) To the side. Therefore, the tab terminal 45 is fixed while being sandwiched between the pressing plate 32 and the lower body 31a, thereby limiting the movement of the battery cell 80.

In the present embodiment, the fixing device 30 fixes the electrode tab 81a to which the tab terminal 45 is coupled among the two electrode tabs 81a and 81b provided in the battery cell 80. Therefore, one fixing device 30 is provided per one battery cell 80. However, the present invention is not limited thereto, and the electrode tab 81b disposed on the door 11 side may also be configured to be fixed as necessary. In this case, the electrode tab 81b disposed on the side of the door 11 may be disposed between the lower body 31a of the fixing device 30 and the pressing plate 32 without the tab terminal 45 to be fixed.

On the other hand, in this embodiment, the case where the fixing device 30 is directly fixed to the shelf 20 is taken as an example. However, the present invention is not limited thereto and various modifications are possible. For example, after providing the tray or jig which supports the battery cell 80, it is also possible to arrange | position the fixing apparatus 30 to a tray or a jig. In this case, the tray or jig is fixedly coupled to the shelf (20).

In addition, the chamber 10 of the present embodiment may include a connection cable 50.

The connection cable 50 electrically connects the electrode tabs 81b disposed on the door 11 side of the electrode tabs 81a and 81b of the battery cell 80 with the control device.

Therefore, the connecting cable 50 is formed to a length that does not limit the sliding movement of the shelf 20, one end is connected to the electrode tab 81b and the other end is connected to the control device.

One end of the connecting cable 50 may be provided with a tong-shaped connecting member for connection with the electrode tab 81b, but is not limited thereto.

The charging and discharging device of the present embodiment configured as described above includes a shelf 20 that is drawn out of the chamber 10 in a sliding manner. Therefore, the battery cells 80 may be easily mounted on the shelf 20. In addition, after the mounting of the battery cells 80 is completed, the electrode tab 81a of each of the battery cells 80 is electrically connected to the control device only by completely pushing the shelf 20 into the chamber 10. Therefore, the electrical connection of the battery cells 80 is very easy.

In addition, the tab terminal 45 and the fixed terminal 42 are very firmly coupled by the stopper 49. Therefore, the resistance can be minimized at the portion where the tab terminal 45 and the fixed terminal 42 are connected, thereby ensuring the reliability of the test.

Meanwhile, the present invention is not limited to the above-described embodiment and various modifications are possible.

7 is a perspective view schematically showing a charge and discharge device according to another embodiment of the present invention.

Referring to FIG. 7, the charging and discharging device according to the present embodiment is configured similarly to the above-described embodiment, and has a difference in that the support part 60a is provided on the shelf 20.

The support 60a is coupled to the bottom of the shelf 20 to support the shelf 20 when the shelf 20 is withdrawn from the chamber 10.

The support part 60a of this embodiment is configured in the form of a folding leg, one end of which is rotatably coupled to the lower part of the shelf 20. Therefore, when the shelf 20 is disposed in the chamber 10, the support 60a may be folded and stored so that the support 60a may be in close contact with the shelf 20. When the shelf 20 is withdrawn from the chamber 10, the support 60a extends the ground and supports the shelf 20 to support the shelf 20.

As the connection structure of the support unit 60a and the shelf 20, various conventional technologies such as a hinge structure may be used, and thus a detailed description thereof will be omitted.

In this embodiment, the support part 60a is comprised so that the x-axis may rotate by rotating a rotating shaft. However, the present invention is not limited thereto, and various modifications may be made such that the y-axis is rotated.

In addition, the support part 60a of the present embodiment may be configured to enable extension of the length. For example, the support 60a may be composed of a plurality of pipes having different diameters. The variable length may be omitted because various conventional techniques may be selectively used.

When the charging and discharging device is configured as described above, the connection part between the shelf 20 and the chamber 10 is damaged due to the weight of the battery cell 80 in the process of mounting the battery cell 80 to the shelf 20. It can prevent.

8 is a perspective view schematically showing a charging and discharging device according to another embodiment of the present invention.

Referring to FIG. 8, the charging and discharging device according to the present embodiment includes a support 60b having a form similar to that of the above-described embodiment.

In this embodiment, the support 60b is configured to rotate not only the x axis but also the y axis as the rotation axis. Accordingly, one end of the support 60b may be connected to the shelf 20 through, for example, a universal joint.

The chamber 10 is provided with a support groove 19 to which the ends of the support 60b are coupled. The support groove 19 may be disposed below the shelf 20 and may be formed as a groove having a size into which an end of the support 60b may be inserted.

Thus, the support portion 60b of the present embodiment is inserted into the support groove 19, not the ground, and supports the shelf 20 by stepping the support groove 19. Therefore, the support 60b is disposed in the diagonal direction of the shelf 20 to support the shelf 20.

When the support portion 60b is configured as described above, the shelf 20 can be supported regardless of the state of the ground or the distance between the shelf 20 and the ground.

On the other hand, in this embodiment, the support portion 60b is configured to be folded with the x-axis as the rotation axis and rotated with the y-axis as the rotation axis to be inserted into the support groove 19. However, the present invention is not limited thereto, and various modifications are possible, such as being configured to be folded along the y axis.

9 is a perspective view schematically showing a charging and discharging device according to another embodiment of the present invention, and FIGS. 10 and 11 are schematic views showing an inner wall of the chamber shown in FIG. 9.

First, referring to FIGS. 9 and 10, in the charging / discharging device according to the present embodiment, the support part 60c is disposed below the shelf 20.

The support 60c of the present embodiment is configured in the form of a flat plate and is coupled to the shelf 20 in a form overlapping the shelf 20. One side of the support part 60c is disposed at the center of the shelf 20 to support the shelf 20, and the other side is coupled to the chamber 10. Therefore, the support 60c is disposed in the diagonal direction of the shelf 20 to support the shelf 20.

The support 60c is coupled to the shelf 20 so that one side is movable. In addition, the other side of the support (60c) is coupled to the chamber 10 to be movable.

To this end, the frame 24 and the chamber 10 of the shelf 20 is provided with a rail (or guide groove) to which the support 60c is movable. For example, the frame 24 of the shelf 20 is provided with a horizontal rail (not shown) disposed along the y-axis direction, and the inlet of the chamber 10 is provided with a vertical rail 17 disposed along the z-axis direction. Can be.

And on one side and the other side of the support (60c) is provided with a coupling member 65 that is movable along the vertical rail and the horizontal rail. A roller may be used as the coupling member 65, but is not limited thereto.

By such a configuration, when the shelf 20 is pulled out of the chamber 10, the support part 60c is pulled out together with the shelf 20 in a state where it overlaps with the shelf 20. When the withdrawal is completed, the other side of the support 60c moves downward along the vertical rail 17 of the chamber 10 and is disposed in the support groove 19 provided at the lowermost end of the vertical rail.

In this process, one side of the support 60c moves to the rear side and is disposed at the center of the shelf 20, thereby supporting the center of the shelf 20.

The charging and discharging device according to the present exemplary embodiment configured as described above may support the shelf 20 more stably because the support part 60c has a plate shape.

FIG. 11 is a diagram illustrating a modified example of the charging and discharging device shown in FIG. 9.

Referring to FIG. 11, in the charging and discharging device according to the present exemplary embodiment, the supporting part 60d has a flat plate shape as shown in FIG. 9.

And the chamber 10 is provided with the guide groove 17a along the path | route which the coupling member 65 provided in the other side of the support part 60d moves.

In the present embodiment, the guide groove 17a is disposed to be farther from the shelf 20 toward the door 11 side.

Therefore, when the shelf 20 is completely pulled out of the chamber 10, the supporting part 60d automatically moves to the lower side of the shelf 20 along the guide groove 17a and is disposed in the support groove 19.

Meanwhile, although FIGS. 9 to 11 illustrate a case in which the support part is formed of a flat plate, the configuration of the present invention is not limited thereto. For example, the support may be configured in the form of a frame rather than a flat plate.

12 is a perspective view schematically showing a charge and discharge device according to another embodiment of the present invention.

Referring to FIG. 12, in the charging and discharging device according to the present exemplary embodiment, electrode tabs of the battery cell 80 are disposed in the same direction. Accordingly, the connecting device 40 and the fixing device 30 are also coupled to the respective electrode tabs.

In this case, the aforementioned connection cable 50 of FIG. 1 may be omitted.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and variations can be made without departing from the technical spirit of the present invention described in the claims. It will be obvious to those of ordinary skill in the field.

For example, in the above embodiments, one small chamber has been described as an example. However, the configuration of the present invention is not limited thereto, and a plurality of chambers may be connected to each other or may be applied to a large room chamber. In addition, the embodiments may be implemented in combination with each other.

100: charge and discharge device
10: chamber
20: shelf
30: fixing device
40: connecting device
50: connecting cable
60a to 60d: support
80: battery cell

Claims (15)

A chamber accommodating a plurality of battery cells therein;
A shelf disposed inside the chamber and drawn out of the chamber in a sliding manner; And
A connection device coupled to an electrode tab of the battery cell and including a tab terminal fixed to the shelf and a fixed terminal disposed in the chamber;
Including;
The connection device,
And the tab terminal is coupled to the fixed terminal when the shelf is fully coupled to the chamber.
The method of claim 1,
The fixed terminal has a stopper for integrally coupling the two fixed plate and the two fixed play,
And the tab terminal is inserted into an insertion space formed between the two fixing plates and coupled to the fixing terminal.
The method of claim 2,
The fixing plate has a projection protruding toward the insertion space side and the tab terminal has a secondary battery charging and discharging device having a coupling groove into which the projection is inserted when inserted into the insertion space.
The method of claim 2, wherein the stopper,
A support member comprising a shaft disposed through the two fixing plates and a flange disposed at both ends of the shaft; And
An elastic member disposed between the flange and the fixing plate;
Secondary battery charge and discharge device comprising a.
The method of claim 2, wherein the tab terminal,
A secondary battery charge and discharge device including two electrode plates, the electrode tab is coupled to the electrode tab so that the electrode tab is disposed between the two electrode plates.
The method of claim 1,
And a fixing device fixedly coupled to the shelf and limiting the movement of the battery cell by pressing the tab terminal.
The method of claim 6, wherein the fixing device,
A body fixedly coupled to the shelf and having an inner space accommodating the tab terminal; And
A pressing device coupled to the body and pressing the tab terminal disposed in the inner space toward the shelf;
Secondary battery charge and discharge device comprising a.
The method of claim 1,
A secondary battery charging and discharging device coupled to the bottom of the shelf further comprises a support for supporting the shelf when the shelf is withdrawn from the chamber.
The method of claim 8, wherein the support portion,
Secondary battery charging and discharging device is formed in the form of a foldable leg coupled to one end rotatably on the shelf.
The method of claim 9,
The other end of the support part is inserted into a support groove formed in the ground or the chamber secondary battery charge and discharge device for supporting the shelf.
The method of claim 8, wherein the support portion,
Secondary battery charging and discharging device is formed in the form of a flat plate is coupled to one side is movable to the shelf and the other side to be movable to the chamber.
The method of claim 11,
When the shelf is pulled out, the other side of the support moves downward along the rail formed in the chamber, and one side of the support supports the shelf at the center of the shelf.
The method of claim 1,
And a connection cable connected to the other electrode tab of the battery cell to electrically connect the other electrode tab and the chamber.
According to claim 1, The shelf,
A frame coupled to the chamber to allow sliding movement; And
A support plate seated on the frame and having a plurality of through holes formed therein;
Secondary battery charge and discharge device comprising a.
The method of claim 14, wherein the chamber,
Secondary battery charge and discharge device including an air inlet for supplying air into the chamber for controlling the temperature inside the chamber, and an air outlet for discharging the air in the chamber to the outside.

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