KR102556095B1 - Pouch type battery include internal frame - Google Patents

Abstract

The present invention relates to a pouch-type battery including an inner frame, comprising: a battery cell having electrode leads formed thereon; A pouch in which the battery cell is inserted, a frame hole is formed on the upper surface, and a pair of frame parts including protrusions spaced apart from each other on the side and continuously formed along the outer surface and a pouch hole through which the electrode lead can pass. A pouch type battery including an inner frame including a film may be provided.

Description

Pouch type battery including an internal frame {Pouch type battery include internal frame}

The present invention relates to a pouch-type battery including an inner frame, and more particularly, to a pouch-type battery including an inner frame to which a frame part is added to protect a battery cell from external pressure and reduce contact resistance.

In accordance with the recent trend of miniaturization and weight reduction of electronic devices, a battery serving as a power source is also required to be miniaturized and lightweight.

Secondary batteries are being put into practical use as batteries that can be charged and discharged with a small size and a high capacity, and are used in portable electronic and communication devices such as small video cameras, mobile phones, and notebook computers.

Secondary batteries are classified into cylindrical, prismatic, or pouch-type secondary batteries according to the shape of an exterior material in which an electrode assembly is accommodated.

Among them, the pouch-type secondary battery uses a pouch exterior material composed of a multi-layer film of a metal layer (foil) and a synthetic resin layer coated on the upper and lower surfaces of the metal layer, so that the battery is better than a cylindrical or prismatic battery using a metal can. The weight can be significantly reduced, making it possible to reduce the weight of the battery, and it has the advantage that it can be changed into various shapes.

In such a pouch-type secondary battery, a battery cell in which an electrode tab is formed on one side of an electrode body including a negative electrode, a positive electrode, an electrolyte, and a separator is accommodated in a pouch, and then an electrolyte solution is injected into the pouch, After filling, gas is removed, and then the pouch is sealed to complete manufacturing.

At this time, the gas may be removed from the inside of the battery cell through a method of depressurizing the pouch-type battery cell to a vacuum state. In this process, there is a problem in that the electrolyte solution is ejected to the outside of the pouch, causing a contamination problem. In addition, there is also a problem that the battery cell inside the pouch is damaged due to the pressure transmitted to the pouch, and a solution to this problem is required.

As the prior art, there is Korean Patent Publication No. 10-2013-0108691.

In order to solve the above problems, the present invention provides a frame part surrounding the battery cell inside the pouch type battery, and protects the battery cell from external pressure to prevent leakage of the battery cell or damage to the battery cell, and contact through the frame part An object of the present invention is to provide a pouch type battery including an inner frame capable of reducing resistance.

In order to solve the above problems, a pouch-type battery including an inner frame according to an embodiment of the present invention includes a battery cell in which an electrode lead is formed; A pouch in which the battery cell is inserted, a frame hole is formed on the upper surface, and a pair of frame parts including protrusions spaced apart from each other on the side and continuously formed along the outer surface and a pouch hole through which the electrode lead can pass. may contain films.

The frame unit may include a first frame including a protrusion formed on the protrusion and a second frame formed on the protrusion and including a groove into which the protrusion is inserted.

In addition, the protrusion is formed to extend in the longitudinal direction with a pointed end, and includes a protrusion groove formed inward along the outer circumferential surface, and the groove is formed to extend in the longitudinal direction so that the protrusion can be inserted, Auxiliary grooves formed extending horizontally on both sides; It may include an auxiliary spring formed in the auxiliary groove and an auxiliary protrusion formed at an end of the auxiliary spring and inserted into the protruding groove.

In addition, the frame part further includes a fixing part for fixing the first frame and the second frame in a coupled state, and the fixing part is formed extending from the corner of the first frame and can rotate vertically, , A handle portion including a bent portion having an end bent inward and a receiving portion formed inwardly at a corner of the second frame to accommodate the bent portion, and a fixing protrusion formed inwardly at an end of the bent portion is formed in the receiving portion It is characterized in that it is inserted into the fixing groove formed inwardly and fixed.

In addition, the frame unit further includes an opening/closing unit capable of fixing the electrode lead, and the opening/closing unit includes: opening/closing holes formed inwardly on both side surfaces of the frame hole; an opening/closing spring formed inside the opening/closing hole; It is formed in the form of a pin having a length and is inserted into the opening and closing hole to penetrate the opening and closing spring, and is formed in a plate shape at the center of the opening and closing pin, characterized in that it can rotate vertically.

In addition, the frame unit further includes a moving unit capable of fixing a position according to the size of the battery cell, and the moving unit includes: a moving hole formed in an inner oblique direction at each corner of the frame unit; a moving member formed in an 'L' shape and moving along the moving hole; It may include a moving bar formed in a bar shape having a length on the lower surface of the moving member and penetrating the moving hole, and a moving plate formed in a disk shape on the lower surface of the moving bar to prevent the moving bar from being separated from the moving hole. there is.

In addition, the moving hole is characterized in that the outer surface is formed in a curved shape continuously.

In addition, the first frame includes a stacking protrusion formed to protrude on an outer surface, and the second frame includes a stacking hole formed on an outer surface into which the stacking protrusion is inserted, and the frame unit includes the stacking protrusion and the stacking hole. It is characterized in that a plurality is laminated by combining.

The pouch-type battery including the inner frame according to the embodiment of the present invention as described above has an effect of reducing contact resistance by supporting the electrode lead as well as protecting the battery cell from external pressure by providing the frame portion. there is.

1 is a perspective view showing a pouch type battery including an inner frame according to an embodiment of the present invention;
Figure 2 is an exploded perspective view of Figure 1;
Figure 3 is a perspective view showing a state in which a battery cell is assembled with a frame portion of a pouch-type battery including an inner frame according to an embodiment of the present invention.
Figure 4 (a), (b) is an exemplary view showing an exploded state of Figure 3.
Figure 5 is an exemplary view showing a battery cell and a frame portion formed with protrusions and grooves of another example of a pouch-type battery including an internal frame according to an embodiment of the present invention.
Figures 6 (a) to (c) are exemplary views showing how the projections and grooves of Figure 5 are coupled.
Figure 7 is a perspective view showing a state in which a battery cell is assembled with a frame portion formed with a fixing portion of a pouch-type battery including an internal frame according to an embodiment of the present invention.
8 (a) and (b) are exemplary views of FIG. 7 .
Figure 9 is a cross-sectional view of Figure 7;
10 is a perspective view showing a state in which an opening and closing portion is formed in a frame portion of a pouch-type battery including an inner frame according to an embodiment of the present invention.
Figures 11 (a), (b) is an exemplary view showing an operation in a state in which the battery cell and the frame portion formed with the opening and closing portion of Figure 10 are assembled.
12 (a) and (b) are exemplary diagrams illustrating a state in which a moving part is formed in a frame part of a pouch type battery including an inner frame according to an embodiment of the present invention.
13 (a) and (b) are plan views illustrating the operation of the moving unit of FIG. 12;
14 is an exploded perspective view of a battery cell and a frame portion formed with stacking protrusions and stacking holes of a pouch-type battery including an internal frame according to an embodiment of the present invention.
15 is an exemplary view showing a state in which a plurality of pouch-type batteries are coupled by combining stacking protrusions and stacking holes of frame holes of a pouch-type battery including an internal frame according to an embodiment of the present invention.

Hereinafter, the description of the present invention with reference to the drawings is not limited to specific embodiments, and various transformations may be applied and various embodiments may be applied. In addition, the content described below should be understood to include all conversions, equivalents, or substitutes included in the spirit and scope of the present invention.

In the following description, terms such as first and second are terms used to describe various components, and are not limited in meaning per se, and are used only for the purpose of distinguishing one component from another.

Like reference numbers used throughout this specification indicate like elements.

Singular expressions used in the present invention include plural expressions unless the context clearly dictates otherwise. In addition, terms such as "include", "include" or "have" described below are intended to designate that features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist. should be construed, and understood not to preclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present application, it should not be interpreted in an ideal or excessively formal meaning. don't

In addition, in the description with reference to the accompanying drawings, the same reference numerals are given to the same components regardless of reference numerals, and overlapping descriptions thereof will be omitted. In describing the present invention, if it is determined that a detailed description of related known technologies may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 15 attached.

1 is a perspective view showing a pouch-type battery including an internal frame according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of FIG. 1, and FIG. 3 is a pouch including an internal frame according to an embodiment of the present invention. 4(a) and (b) are exemplary views showing an exploded view of FIG. 3, and FIG. 5 is an exemplary embodiment of the present invention. Another example of a pouch-type battery including an inner frame according to is an exemplary view showing a frame portion and a battery cell having protrusions and grooves formed thereon, and FIGS. 7 is a perspective view showing an assembled state of a battery cell and a frame portion formed with a fixing portion of a pouch-type battery including an internal frame according to an embodiment of the present invention, FIG. 8 (a), (b) is an exemplary view of FIG. 7, FIG. 9 is a cross-sectional view of FIG. 7, and FIG. 10 is a perspective view showing an opening and closing portion formed in a frame portion of a pouch-type battery including an inner frame according to an embodiment of the present invention. 11 (a) and (b) are exemplary diagrams showing operation in a state in which the battery cell is assembled with the frame portion formed with the opening and closing portion of FIG. 10, and FIG. 12 (a) and (b) are exemplary views of the present invention It is an exemplary view showing a state in which a moving part is formed in a frame part of a pouch-type battery including an internal frame according to an embodiment, and FIG. 13 (a) and (b) are plan views illustrating the operation of the moving part of FIG. 12 14 is an exploded perspective view of a battery cell and a frame portion formed with stacking protrusions and stacking holes of a pouch-type battery including an internal frame according to an embodiment of the present invention, and FIG. 15 includes an internal frame according to an embodiment of the present invention. It is an exemplary diagram showing a state in which a plurality of pouch-type batteries are combined by combining the stacking protrusions of the frame holes of the pouch-type battery and the stacking holes.

1 to 6, a pouch-type battery including an inner frame according to an embodiment of the present invention includes a frame portion 200 between the battery cell 100 and the pouch film 300, so that the battery is protected from external pressure. It can protect the cell 100, and may include the battery cell 100, the frame part 200, and the pouch film 300.

First, the battery cell 100 may include a general structure of a secondary battery cell, such as an electrode current collector and an electrode tab, and an electrode lead 101 functioning as an electrode in a secondary battery may be formed.

The frame unit 200 is formed as a pair of frames, and the battery cell 100 is inserted therein to protect the battery cell 100, and may include a frame hole 201 and a protrusion 204. there is.

The frame hole 201 is a hole formed to expose both sides of the battery cell 100 located inside the frame part 200, and allows the electrode lead 101 to pass through the frame hole 201. In addition, as both sides of the battery cell 100 are exposed through the frame hole 201, heat generated from the battery cell 100 can be emitted to the outside.

At this time, the frame hole 201 may be formed in various shapes and sizes through which the electrode lead 101 can pass, but is not limited thereto.

The protrusions 204 are spaced apart from the side of the frame unit 200 at regular intervals and continuously curved along the outer surface, and may be formed in various shapes, but are most preferably formed curved in a square shape.

In addition, the frame unit 200 may include a first frame 210 and a second frame 220 coupled as a pair.

Here, the coupling of the first frame 210 and the second frame 220 may be performed by coupling the protrusion 202 and the groove 203 . The protrusion 202 and the groove 203 may be formed on the first frame 210 or the second frame 220 so that the first frame 210 and the second frame 220 can be coupled, respectively. It is most preferable to be formed on the protrusion 204, but is not limited thereto. For example, a protrusion 202 is formed on the first frame 210, and a groove 203 is formed on the second frame 220 at a position corresponding to the protrusion 202, so that the first frame 210 and the second Frame 220 may be coupled.

Accordingly, the side surfaces of the battery cell 100 are exposed through spaces formed on both sides of the coupled protrusions 204 of the frame unit 200 and may serve as a passage through which heat generated in the battery cell 100 is discharged.

Referring to FIG. 5 , the protrusion 202 of the frame portion 200 of the pouch-type battery including the inner frame according to the embodiment of the present invention may have a pointed end and extend in the longitudinal direction. In addition, the protrusion 202 may include a protrusion groove 2020 formed inwardly along the outer circumferential surface.

The groove 203 may be formed to extend in the longitudinal direction so that the protrusion 202 can be inserted. In addition, the groove 203 includes an auxiliary groove 2030, an auxiliary spring 2031, and an auxiliary projection 2032, so that the projection 202 can be inserted and fixed.

The auxiliary groove 2030 is a groove extending horizontally on both sides of the groove 203, and has the same width as the projection groove 2020 when the projection 202 is completely inserted into the groove 203, and is in a straight line. It is most preferable to be formed to be located at.

The auxiliary spring 2031 is formed in the auxiliary groove 2030, and the auxiliary protrusion 2032 is formed at the end of the auxiliary spring 2031 and passes through the auxiliary groove 2030, and a part of the end may be located in the groove 203. . At this time, as shown in FIG. 6, the auxiliary protrusion 2032 is preferably formed with an end inclined downward.

Referring to (a) to (c) of FIG. 6 , the combination of the protrusion 202 and the groove 203 formed as described above can be described.

First, referring to (a) of FIG. 6 , it can be seen that the protrusion 202 is partially inserted into the groove 203 . At this time, the protrusion 202 is not completely inserted into the groove 203 and is not fixed, and the protrusion 202 can escape from the groove 203.

Thereafter, when the protrusion 202 is further inserted into the groove 203 as shown in FIG. 2030) while being drawn inward, the auxiliary protrusion 2032 is positioned inside the auxiliary groove 2030.

Finally, referring to (c) of FIG. 6, when the protrusion 202 is completely inserted into the groove 203, the protrusion groove 2020 and the auxiliary groove 2030 are positioned on a straight line, and the auxiliary spring ( As 2031 is drawn out toward the groove 203, the auxiliary protrusion 2032 located in the auxiliary groove 2030 is caught in the protrusion groove 2020.

Accordingly, the protrusion 202 is inserted into the groove 203 and is fixed so that the first frame 210 and the second frame 220 are more firmly coupled.

The pouch film 300 is formed of a pair of films such as the first film 310 and the second film 320 to surround the frame unit 200 from the outside, and is formed of a laminate sheet including a metal layer and a resin layer. can

In addition, the pouch film 300 has a pouch hole 301 so that the electrode lead 101 can be in good contact with the pouch film 300, and the electrode lead passing through the frame hole 201 of the frame part 200 101 is allowed to pass through the pouch hole 301 and contact the pouch film 300 at the same time.

In this way, the first frame 210 and the second frame 220 are coupled through the protrusions 202 and the grooves 203 to more easily assemble the frame unit 200 that protects the battery cell 100, There is an advantage in that the battery cell 100 can be inserted in a slot format according to the mechanism configuration while the frame unit 200 is mounted on the battery cell 100 .

In addition, as the electrode lead 101 passes through the frame hole 201 and contacts the pouch film 300 through the pouch hole 301, the electrode lead 101 is welded when assembling the pouch type battery into a series module. There are advantages to not having to. In addition, in the case of a battery cell in which electrode leads are located on the upper and lower surfaces of the battery cell 100, a step of pressurizing the entire battery cell is required to reduce contact resistance, but in the case of the present invention, the frame portion 200 holds the electrode lead 101 It also has the advantage of easily reducing contact resistance.

Referring to FIGS. 7 to 9 , the frame part 200 of the pouch type battery including the inner frame according to the embodiment of the present invention may further include a fixing part 240 .

The fixing part 240 can fix the first frame 210 and the second frame 220 in a coupled state, and may include a handle part 241 and a receiving part 242 .

The handle part 241 is formed to extend from the edge of the first frame 210 and may be pivotable up and down. In addition, the handle portion 241 may include a bent portion 2410 whose end is bent inward, and a fixing protrusion 2411 may be formed at an end of the bent portion 2410 inwardly.

As shown in FIG. 9 , the accommodating portion 242 may be formed inwardly at the corner of the second frame 220 so that the bent portion 2410 is positioned so that the fixing protrusion 2411 can be inserted into the inner surface.

In this way, there is an advantage in that the first frame 210 and the second frame 220 can be firmly fixed by a simple method through the fixing part 240 .

In addition, the handle part 241 of the fixing part 240 is formed to extend to the bottom surface of the second frame 220 and is coupled to the receiving part 242, so that the outer surface and the bottom surface of the frame part 200 are fixed. Even when a plurality of frame parts 200 are stacked because a curved surface due to 240 is not formed, problems such as tilting and shaking can be prevented from occurring.

Referring to FIGS. 10 and 11 , the frame unit 200 of the pouch type battery including the inner frame according to the embodiment of the present invention may further include an opening and closing unit 250 .

The opening/closing unit 250 can prevent damage by fixing the electrode lead 101, and may include an opening/closing hole 251, an opening/closing spring 252, an opening/closing pin 253, and a cover 254.

The opening/closing hole 251 is a hole formed on both sides of the frame hole 201 having a length inwardly, and the opening/closing spring 252 is a spring formed inside the opening/closing hole 251 .

The opening/closing pin 253 may be formed in a pin shape having a length and inserted into the opening/closing hole 251 to pass through the opening/closing spring 252 .

Finally, the cover 254 is formed in a plate shape at the center of the opening and closing pin 253 and can be turned up and down through the opening and closing springs 252 formed at both ends of the opening and closing pin 253.

Accordingly, the cover 254 allows the electrode lead 101 to be fixed by pressing the electrode lead 101 passing through the frame hole 201 from the upper side, as shown in (a) of FIG. 11 . Conversely, when separating from the electrode lead 101 as shown in (b) of FIG. 11, the cover 254 holding the electrode lead 101 can be lifted upward and separated. Thereafter, when the force applied to the cover 254 disappears, the cover 254 may return to the state shown in (a) of FIG. 11 due to the opening/closing spring 252 .

In addition, the cover 254 may pass through the pouch hole 301 along with the electrode lead 101 to fix the electrode lead 101 as shown in FIG. 10 . Accordingly, even if the electrode lead 101 passes through the pouch hole 301 through the opening/closing part 250 and is exposed to the outside of the pouch film 300, it is fixed to prevent damage and is more closely attached to the pouch film 300. Contacting also has the advantage of reducing contact resistance.

Referring to FIGS. 12 and 13 , the frame unit 200 of the pouch type battery including the inner frame according to the embodiment of the present invention may further include a moving unit 260 .

The moving unit 260 can be adjusted to fit the size of the battery cell 100 to fix the battery cell 100, and includes a moving hole 261, a moving member 262, a moving bar 263 and a moving plate ( 264) may be included.

The moving hole 261 is a hole formed in an inward oblique direction from each corner of the frame unit 200 . At this time, the moving hole 261 may be continuously formed in a curved shape on the outer surface.

The movable member 262 is a member formed in an 'L' shape and can move along the movable hole 261 .

The moving bar 263 may be formed in a bar shape having the length of the moving member 262 and passing through the moving hole 261 .

The moving plate 264 is formed in the shape of a disc on the lower surface of the moving bar 263 to prevent the moving bar 263 from being separated from the moving hole 261 .

In this way, when the moving unit 260 moves the moving member 262, the moving bar 263 moves along the moving hole 261, and is fixed at a desired position according to the curved shape of the moving hole 261. It can be.

As shown in (a) and (b) of FIG. 13, the moving member 262 is moved and fixed according to the size of the battery cell 100 so that the battery cell 100' can be fixed through the moving member 262. do.

Accordingly, the frame unit 200 has the advantage of being applicable to battery cells 100 having various sizes through the moving unit 260, and prevents the movement of the battery cell 100 within the frame unit 200. Damage to the battery cell 100 can be prevented.

14 and 15, the first frame 210 of the pouch-type battery including the inner frame according to the embodiment of the present invention includes stacking protrusions 205, and the second frame 220 includes stacking holes ( 206) may be included.

The stacking protrusions 205 and the stacking holes 206 are coupled to each other, so that a plurality of frame parts 200 can be stacked.

First, the stacking protrusion 205 is a protrusion formed to protrude from the outer surface of the first frame 210, and may include a first stacking protrusion 2050 and a second stacking protrusion 2051 as shown in FIG. 14 .

The first stacking protrusion 2050 may be spaced apart from the corner of the first frame 210 in an inward direction and formed in a disk shape. In this case, the first stacking protrusion 2050 may be formed in a plate shape of various shapes such as a square or a triangle, but is not limited thereto.

The second stacking protrusion 2051 is formed on the upper surface of the first stacking protrusion 2050 and has a smaller size than the second stacking protrusion 2051 and can be inserted into the stacking hole 206 .

Referring to FIG. 15 , it can be seen that a plurality of frame parts 200 are stacked. More specifically, the second stacking protrusion 2051 is inserted into the stacking hole 206 so that a plurality of frame parts 200 can be stacked and combined. ) can be spaced apart by the height of

Accordingly, when the plurality of frame parts 200 are stacked, they are not only stably stacked, but also stacked at a distance equal to the height of the first stacking protrusions 2050, so that the electrodes pass through the frame holes 201 and are exposed to the outside. There is an advantage in that the lead 101 can be prevented from being damaged by being pressed by the frame portion 200 stacked from the top.

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 improvements made by those skilled in the art using the basic concept of the present invention defined in the following claims are also included in the scope of the present invention. that fall within the scope of the right.

1: pouch type battery
100: battery cell
101: electrode lead
200: frame part
201: frame hole
202: projection
2020: Gogi Home
203: home
2030: Auxiliary home
2031: auxiliary spring
2032: auxiliary protrusion
204: protrusion
205: stacked protrusion
2050: first stacked protrusion
2051: second stacked protrusion
206: stacking hole
210: first frame
220: second frame
240: fixing part
241: handle part
2410: bend
2411: fixed protrusion
242: receiving part
250: opening and closing part
251: opening and closing hole
252: opening and closing spring
253: opening and closing pin
254: cover
260: moving unit
261: moving hall
262: moving member
263: move bar
264: mobile plate
300: pouch film
301: pouch hole
310: first film
320: second film

Claims (8)

a battery cell having an electrode lead;
A pair of frame parts including protrusions into which the battery cells are inserted, a frame hole formed on the upper surface, and continuously formed along the outer surface spaced at a predetermined interval on the side surface; and
It includes a pouch film having a pouch hole through which the electrode lead can pass,
the frame part,
Further comprising an opening and closing portion capable of fixing the electrode lead,
The opening part,
opening and closing holes formed inwardly on both sides of the frame hole;
an opening/closing spring formed inside the opening/closing hole;
An opening/closing pin formed in a pin shape having a length and inserted into the opening/closing hole to pass through the opening/closing spring, and
A pouch-type battery comprising an inner frame including a cover, characterized in that it is formed in a plate shape at the center of the opening and closing pin and is pivotable up and down.
According to claim 1,
the frame part,
A first frame including a protrusion formed on the protrusion and
A pouch-type battery comprising an inner frame formed on the protrusion and further including a second frame including a groove into which the protrusion is inserted.
According to claim 2,
The protrusion,
It is formed to extend in the longitudinal direction with a pointed end, and includes a protruding groove formed inward along the outer circumferential surface,
the home,
It is formed extending in the longitudinal direction so that the protrusion can be inserted,
Auxiliary grooves formed extending horizontally on both sides;
Auxiliary spring formed in the auxiliary groove and
A pouch-type battery comprising an inner frame formed at an end of the auxiliary spring and including an auxiliary protrusion inserted into the protrusion groove.
According to claim 2,
the frame part,
Further comprising a fixing part for fixing the first frame and the second frame in a coupled state,
The fixing part,
A handle portion extending from the corner of the first frame, capable of turning up and down, and including a bent portion having an end bent inward; and
It is formed inwardly at the corner of the second frame and includes an accommodating portion accommodating the bent portion,
A pouch-type battery comprising an inner frame, characterized in that the fixing protrusion formed inwardly at the end of the bent portion is inserted into the fixing groove formed inwardly in the accommodating portion and fixed.
delete According to claim 1,
the frame part,
Further comprising a moving unit capable of fixing the position according to the size of the battery cell,
The moving part,
a moving hole formed in an inner oblique direction at each corner of the frame part;
a moving member formed in an 'L' shape and moving along the moving hole;
A moving bar formed in a bar shape having a length on the lower surface of the moving member and penetrating the moving hole; and
A pouch-type battery comprising an inner frame including a moving plate formed in a disk shape on a lower surface of the moving bar to prevent the moving bar from being separated from the moving hole.
According to claim 6,
The moving hole,
Pouch-type battery comprising an inner frame characterized in that the outer surface is formed in a curved shape continuously.
According to claim 2,
The first frame,
Including a stacking protrusion formed to protrude from the outer surface,
The second frame,
Including a stacking hole formed on the outer surface to insert the stacking protrusion,
the frame part,
A pouch-type battery including an inner frame, characterized in that a plurality of stacked by combining the stacking protrusion and the stacking hole.

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