KR20190132140A - Battery Pack - Google Patents

Abstract

The present invention provides a battery pack having an insulating sheet which is easy to reattach and reduces a defective rate. The battery pack comprises: a battery cell; an antenna unit which is arranged on one surface of the battery cell; an insulating sheet which has a first surface and a second surface on the opposite side of the first surface, and surrounds the outer circumferential surface of the battery cell for the first surface to face outwards, wherein the second surface includes a first area, a second area surrounding the first area, and a third area other than the first and second areas, and the first area and the second area correspond to the antenna unit; and an adhesive unit which includes a first adhesive area arranged in the first area of the insulating sheet and having first adhesive force and a second adhesive area arranged in the third area and having second adhesive force greater than the first adhesive force.

Description

Battery Pack {Battery Pack}

The present invention relates to a battery pack having a label.

Due to the development of wireless Internet and communication technology, the use of portable electronic devices that can operate using batteries without a power supply device is becoming common. Among them, portable computers are small and easy to carry, and have excellent portability, so they are widely used for work or personal use. A portable computer may be provided with a battery pack for use in various locations without regard to the power supply. The battery pack may have a plurality of unit cells that can be repeatedly used for charging and discharging to provide sufficient output.

Typically, secondary batteries are classified into cylindrical batteries, rectangular batteries, pouch-type batteries, and the like, depending on their appearance, and may be classified according to the type of electrolyte. Due to the recent trend toward the miniaturization of mobile devices, there is an increasing demand for small rectangular battery and pouch type battery. In addition, according to the form in which the secondary battery is mounted in the case, it is generally classified into an external battery pack (hard pack) and an internal battery pack (inner pack). An external battery pack has an advantage of being easy to be mounted on an external device when it is used because it forms part of the external device to which it is mounted, but it is relatively expensive because the case must be designed according to the type of the external device with the battery cell in the built-in battery pack. Problem with less compatibility.

On the other hand, since the built-in battery pack covers the cover forming part of the external device in a state of being mounted inside the external device, mounting is relatively cumbersome, but it is easy to design, inexpensive, and has advantages of compatibility. . In order to protect the contents of the internal battery pack or to provide information about the battery pack, the outermost surface may be labeled. In this regard, the study on the sheet that can be effectively combined without damaging the appearance of the battery pack. Is going on.

However, such a battery pack having a conventional label has a problem such that a bare cell is damaged when an adhesive material is coated on the front surface of the label and the label is to be reattached.

The present invention has been made to solve various problems including the above problems, and an object of the present invention is to provide a battery pack having a label that is easily reattached to reduce a defective rate. However, these problems are exemplary, and the scope of the present invention is not limited thereby.

According to an embodiment of the present invention, a battery cell; An antenna unit disposed on one surface of the battery cell; A first surface and a second surface opposite to the first surface, surrounding the outer circumferential surface of the battery cell such that the first surface faces outward, wherein the second surface surrounds the first region and the first region; An insulating sheet comprising two regions and a third region other than the above, wherein the first region and the second region correspond to the antenna portion; And a first adhesive region disposed in the first region of the insulating sheet and having a first adhesive force, and a second adhesive region disposed in the third region and having a second adhesive force greater than the first adhesive force. A battery pack is provided.

In the present exemplary embodiment, the antenna unit may include an antenna pattern disposed to correspond to the second region, and the adhesive unit may be disposed except the second region.

In the present embodiment, the antenna pattern may have a loop shape.

In the present embodiment, the antenna unit may be an antenna for a Near Field Communication (NFC) function.

In example embodiments, the first adhesive region may include a first adhesive material, the second adhesive region may include a second adhesive material, and the first adhesive material and the second adhesive material may be different from each other. have.

In the present embodiment, the first adhesive material may have a weaker adhesive force than the second adhesive material.

In the present embodiment, the first adhesive region may be patterned to be repeatedly spaced apart.

In the present embodiment, the antenna unit may include an antenna terminal disposed to correspond to the second area.

According to another aspect of the invention, the battery cell; A metal pattern disposed on one surface of the battery cell and having a loop shape; And an adhesive sheet including an insulating sheet disposed to surround an outer circumferential surface of the battery cell and a first adhesive region and a second adhesive region disposed on one surface of the insulating sheet so as to be attached to the battery cell and spaced apart from each other. A battery pack including a label unit is provided.

In the present embodiment, the metal pattern may be a near field communication (NFC) antenna.

In the present exemplary embodiment, the insulating sheet may have a separation region between the first adhesive region and the second adhesive region, and the separation region may be disposed to correspond to the metal pattern.

In an embodiment, the adhesive part may include a first adhesive region located inside the loop based on the metal pattern and including a first adhesive material and a second adhesive region located outside the loop and including a second adhesive material. The first adhesive material and the second adhesive material may be different from each other.

In the present embodiment, the first adhesive material may have a weaker adhesive force than the second adhesive material.

In the present exemplary embodiment, the adhesive part may include a first adhesive region positioned inside the loop based on the metal pattern and having a first adhesive force, and a second adhesive region positioned outside the loop and having a second adhesive force. The first adhesive force may be weaker than the second adhesive force.

In the present embodiment, the battery cell includes an external terminal at one side, a portion of the first adhesive region is positioned corresponding to the metal pattern, and another portion of the first adhesive region is positioned corresponding to the external terminal. In addition, the first adhesive region may have a weaker adhesive force than the second adhesive region.

According to an embodiment of the present invention made as described above, it is possible to implement a battery pack having a label that is easy to reattach to reduce the defective rate. Of course, the scope of the present invention is not limited by these effects.

In addition, the effects of the present invention may be derived from the contents to be described below with reference to the drawings in addition to the above contents.

1 is an exploded perspective view schematically showing a battery pack according to an embodiment of the present invention.
2 is a front view schematically showing a part of a battery pack according to an embodiment of the present invention.
3 is a plan view schematically illustrating a part of a battery pack according to an embodiment of the present invention.
4 is a sectional view schematically showing a part of a battery pack according to an embodiment of the present invention.
5 is a plan view schematically illustrating a part of a battery pack according to another exemplary embodiment of the present invention.
6 is a cross-sectional view schematically showing a part of a battery pack according to another embodiment of the present invention.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. Effects and features of the present invention, and methods of achieving them will be apparent with reference to the embodiments described below in detail together with the drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various forms.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, and the same or corresponding components will be denoted by the same reference numerals, and redundant description thereof will be omitted. .

In the following embodiments, the terms first, second, etc. are used for the purpose of distinguishing one component from other components rather than a restrictive meaning.

In the following examples, the singular forms "a", "an" and "the" include plural forms unless the context clearly indicates otherwise.

In the following examples, the terms including or having have meant that there is a feature or component described in the specification and does not preclude the possibility of adding one or more other features or components.

In the following embodiments, when a portion of a film, an area, a component, or the like is said to be "on" or "on" another portion, as well as being "on" or "on directly" of another portion, It also includes the case where other film | membrane, an area | region, a component, etc. are interposed.

In the following embodiments, the x-axis, y-axis and z-axis are not limited to three axes on the Cartesian coordinate system, but may be interpreted in a broad sense including the same. For example, the x-axis, y-axis, and z-axis may be orthogonal to each other, but may refer to different directions that are not orthogonal to each other.

In the drawings, components may be exaggerated or reduced in size for convenience of description. For example, the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of description, and thus the present invention is not necessarily limited to the illustrated.

1 is an exploded perspective view schematically showing a battery pack according to an embodiment of the present invention, and FIG. 2 is a front view schematically showing a part of a battery pack according to an embodiment of the present invention. 2 illustrates the battery cell 100 of FIG. 1.

1, a battery pack according to an embodiment of the present invention includes a battery cell 100, a label unit 200 surrounding an outer circumferential surface of the battery cell 100, and an antenna unit disposed on one surface of the battery cell 100 ( 300). The label unit 200 includes an insulating sheet 210 and an adhesive portion 220 disposed on one surface of the insulating sheet 210.

The battery cell 100 includes a can 110 having an opening at one side thereof, and an electrode assembly (not shown) accommodated inside the can through the opening. The can has an open shape at one side, for example, may be provided in various shapes such as a square, a cylindrical shape, and a pouch type. The can may be made of a metallic material to ensure strength, for example, may be made of silver aluminum or an aluminum alloy. After the electrode assembly is inserted into the can 110 through the opening, the opening can be sealed by the cap plate. Like the can 110, the cap plate may be made of a metallic material such as aluminum or an aluminum alloy. The portion where the cap plate and the can 110 contact each other may be coupled by laser welding, thereby maintaining internal airtightness.

The electrode assembly may include a first electrode plate coated with an electrode active material, a second electrode plate, and a separator interposed therebetween. The first electrode plate and the second electrode plate have different polarities. The electrode assembly may be manufactured by winding the first electrode plate, the separator, and the second electrode plate sequentially so as to form a jelly-roll. In another embodiment, the electrode assembly may be a stacked electrode assembly in which the first electrode plate, the separator, and the second electrode plate are sequentially stacked.

Although not shown, the battery cell 100 includes a protection circuit module, and the protection circuit module may be electrically connected to a terminal of the battery cell 100 to control charging and discharging of the battery cell 100. Overheating and explosion caused by overdischarge or overcurrent can be prevented.

The upper case 120 may be disposed above the battery cell 100, and the lower case 130 may be disposed below the battery cell 100. The upper case 120 and the lower case 130 may protect the battery cell 100 from an external shock applied to each corner of the upper and lower directions and the battery cell 100, respectively. Terminal grooves 122 may be formed at one end of the upper case 120. The external terminal 124 of the battery cell 100 may be exposed through the terminal groove 122.

The antenna unit 300 may be disposed on one surface of the battery cell 100. The battery cell 100 may have a side surface 114 connecting the main surface 112 and the main surface 112, and the antenna unit 300 may be disposed on one main surface 112. The antenna unit 300 may include an antenna pattern 310, and the antenna pattern 310 may be formed in a loop shape, for example. The antenna pattern 310 may be formed of a metallic material, and may include antenna terminals at both ends.

The antenna unit 300 may be an antenna for a NFC (Near Field Communication) function. The antenna unit 300 may be attached to the battery pack to provide a near field communication function to an electronic device using the battery pack. By such NFC function, an electronic device having a battery pack may be used as a transportation card in a subway, a bus, a taxi, or the like, or may be used as a payment means of various electronic commerce.

Referring to FIG. 2, the antenna unit 300 includes an insulating film 312, an antenna pattern 310 disposed on the insulating film 312, and antenna terminals 320 disposed at both ends of the antenna pattern 310. It may include. The antenna pattern 310 may be directly formed on the outer surface of the battery cell 100, or may be attached to the battery cell 100 in a module form integrally formed with the insulating film 312. The antenna pattern 310 may be provided as a metallic thin film. The antenna pattern 310 may be formed in a repeated rope shape as shown in FIG. 2.

The label unit 200 may be disposed to surround the outer circumferential surface of the battery cell 100. Referring to the enlarged view of FIG. 1, the label portion 200 includes an insulating sheet 210 and an adhesive portion 220 disposed on one surface of the insulating sheet 210. The insulating sheet 210 may have a first surface 210a and a second surface 210b opposite to the first surface 210a, and the adhesive part 220 may be disposed on the second surface 210b. That is, the first surface 210a of the insulating sheet 210 faces the outside of the battery cell 100, and the second surface 210b of the insulating sheet 210 faces the can of the battery cell 100. It may be arranged to.

Although not shown, various types of information about the specification, specification, use of the battery pack, etc. may be printed on the first surface 210a of the insulating sheet 210.

The adhesion part 220 may include a first adhesion area 222 and a second adhesion area 224.

Both the first adhesive region 222 and the second adhesive region 224 may be directly formed on the second surface 210b of the insulating sheet 210, and the insulating sheet 210 and the adhesive part 220 are integrally formed ( The label portion 200 formed in one piece can be configured.

A separation area EA may be provided between the first adhesive area 222 and the second adhesive area 224. The first adhesive region 222 and the second adhesive region 224 may not be disposed in the separation area EA. The separation area EA may be disposed to correspond to the antenna pattern 310 of the antenna unit 300. In other words, in the label unit 200 having the adhesive unit 220 on one surface, the adhesive unit 220 is not disposed in the separation area EA corresponding to the portion where the antenna pattern 310 is disposed.

The first adhesive region 222 may include a first portion 222a and a second portion 222b, where the first portion 222a is positioned inside the antenna pattern 310 and the second portion 222b. May be located outside the antenna pattern 310. In particular, the second portion 222b may be formed to correspond to the external terminal 124 of the battery pack.

In this embodiment, the adhesive force of the first adhesive region 222 may be smaller than the adhesive force of the second adhesive region 224. That is, the first adhesive region 222 may be divided into a weak adhesive section, and the second adhesive region 224 may be divided into a relatively strong adhesive section.

In general, the label unit 200 is provided in the battery pack by directly attaching a person, not an automated system of the machine in the manufacturing process. In attaching the label unit 200 to the battery cell 100, when the label unit 200 is not aligned at the same time with the battery cell 100, the label unit 200 that is attached must be removed and reattached. do. In this case, a defect such as peeling or disconnection of the antenna pattern 310 formed of a thin film of metal is caused by the adhesive part 220 of the label part 200, and when the label part 200 is reattached as a result of statistics, The defective rate of the battery pack including the antenna pattern 310 occupies 60% or more of the total defective rate, and there is a strong demand for structural improvement.

Accordingly, in the battery pack according to the exemplary embodiment of the present invention, the adhesive part 220 positioned at the portion corresponding to the antenna part 300 is removed (that is, the separation area EA) or the adhesive force is weakly provided (ie, 1 Adhesive Area 222) When reattaching the label unit 200, damage to the antenna unit 300 was remarkably solved. In the case of applying such a structure, the defect rate that occurs when the label unit 200 is reattached is improved to almost zero.

3 is a plan view schematically showing a part of a battery pack according to an embodiment of the present invention, and FIG. 4 is a cross-sectional view schematically showing a part of a battery pack according to an embodiment of the present invention. 3 and 4 illustrate the label portion 200 of the battery pack, and FIG. 4 corresponds to a cross section along the line IV-IV of FIG. 3.

3 and 4, the label part 200 of the battery pack according to the exemplary embodiment of the present invention includes an insulating sheet 210 and an adhesive part 220 disposed on one surface of the insulating sheet 210. The label unit 200 may be attached to surround the outer circumferential surface except for the upper and lower surfaces of the battery pack. The label unit 200 may be disposed to be slightly larger than the area of the outer circumferential surface of the battery pack, and may be disposed such that one end thereof overlaps on a predetermined area.

The insulating sheet 210 may be formed of an insulating material, and the material is not particularly limited. The insulating sheet 210 may be, for example, polyethylene (PE), polypropylene (PP), polystyrene (PS), polyvinylidene fluoride (PVDF), polytetrafluoroethylene (PTFE), polyethylene-terephthalate (PET), polymethylmethacrylate (PMMA), and polyacrylonitrile (PAN). It may be made of one or two or more materials selected from the group consisting of.

The insulating sheet 210 has a first surface 210a and a second surface 210b on the opposite side of the first surface 210a. Referring to FIG. 1, the first surface 210a of the insulating sheet 210 is formed. ) May be disposed toward the outside of the battery pack, and the second surface 210b may be disposed to face the battery pack. The adhesive part 220 may be disposed between the second surface 210b of the insulating sheet 210 and the outer circumferential surface of the battery pack so that the label part 200 may be adhered to the battery pack. In FIG. 3, the second surface 210b of the insulating sheet 210 is illustrated.

Referring to FIG. 3, the insulating sheet 210 may include a first region A1, a second region A2 surrounding the first region A1, and a third region A3 surrounding the second region A2. And a fourth region A4. The first region A1 and the fourth region A4 are the first adhesive region 222, the second region A2 is the separation region EA, and the third region A3 is the second adhesive region 224. Can correspond. That is, the weakly-adhesive section is provided on the first area A1 and the fourth area A4, the non-adhesive section is provided on the second area A2, and the relatively strong-adhesive section is provided on the third area A3. It is provided.

Referring to FIG. 1, the first area A1 and the second area A2 may be areas that correspond to the antenna unit 300. The second area A2 may be an area corresponding to a portion where the antenna pattern 310 having a loop shape is formed. One side of the second area A2 may include a fourth area A4 corresponding to the external terminal 124 of the battery pack. The first area A1 is an area positioned inside the second area A2 and may be defined as an area inside the loop of the antenna pattern 310.

The adhesive part 220 may be disposed on one surface of the insulating sheet 210, that is, the second surface 210b. The adhesive part 220 may include a first adhesive region 222 and a second adhesive region 224 spaced apart from each other. A separation area EA may be formed between the first adhesion area 222 and the second adhesion area 224, and the first adhesion area 222 and the second adhesion area 224 may be formed in the separation area EA. May not be deployed.

The first adhesive region 222 is disposed in the first region A1 and the fourth region A4 of the insulating sheet 210, and the second adhesive region 224 is the third region A3 of the insulating sheet 210. ) May be disposed. As described above, the adhesive layer is not disposed in the second region A2.

In the present embodiment, the first adhesive region 222 may include a first adhesive material, and the second adhesive region 224 may include a second adhesive material. In an embodiment, the first adhesive material and the second adhesive material may be different from each other, and the adhesive force of the first adhesive material may be weaker than that of the second adhesive material. Accordingly, the first region A1 and the fourth region A4 are provided as weak adhesive regions, and the third region A3 is provided as regions having stronger adhesive force than the weak adhesive regions.

In the present embodiment, the first adhesive region 222 may have a first adhesive force, and the second adhesive region 224 may have a second adhesive force. The first adhesive force may be weaker than the second adhesive force. The adhesive force of the first adhesive region 222 is weaker than the adhesive force of the second adhesive region 224. That is, the adhesive force of the first adhesive region 222 is weaker than that of the second adhesive region 224. Can mean.

The label unit 200 according to the present exemplary embodiment may have different adhesive strengths depending on the first area A1, the second area A2, the third area A3, and the fourth area A4. . The first area A1 and the fourth area A4 are weak adhesive areas and may have a relatively weak adhesive force as compared to the adhesive force of the third region A3. In an embodiment, the first region A1 and the fourth region A4 may have an adhesive force of about 30% of the adhesive force of the third region A3. The adhesive part 220 may not be disposed in the non-adhesive area of the second area A2.

In particular, in the present exemplary embodiment, the first portion 222a of the first adhesive region 222 is positioned on the first region A1 to correspond to the inside of the antenna pattern 310. The antenna unit 300 is formed in the form of the antenna pattern 310 disposed on the insulating film 312, the insulating film is provided in the form to be attached to the battery cell 100, the first area (A1) When the strongly adhesive section is formed to the same extent as the adhesive region 224, the entire antenna portion 300 is torn off during the reattachment of the label portion 300.

Similarly, in the fourth region A4, the second portion 222b of the first adhesive region 222 is positioned on the fourth region A4 to correspond to the external terminal 124 of the battery cell 100. . Since this part is also vulnerable to defects, it is provided with a weak adhesion section in order to prevent damage to the external terminal 124 in the process of reattaching the label unit 300.

As a comparative example, when the first area A1 and the fourth area A4 are provided in a non-adhesive section such as the second area A2, the label 300 may be lifted, which may lead to product defects. It leads.

Therefore, in the battery pack according to the present exemplary embodiment, the first area A1 and the fourth area A4 are relatively weakly adhered to each other, thereby preventing the label 300 from being lifted up and at the same time the label 300. In the process of reattaching, the process can be performed without damaging the antenna unit 300 and the battery cell 100, thereby significantly reducing the defective rate.

5 is a plan view schematically showing a part of a battery pack according to another embodiment of the present invention, and FIG. 6 is a cross-sectional view schematically showing a part of a battery pack according to another embodiment of the present invention. 5 and 6 illustrate a label portion 200 of the battery pack, and FIG. 6 corresponds to a cross section along the line VI-VI of FIG. 5.

5 and 6 differ in the shape of the first adhesive region 222 disposed in the first region A1 from the embodiment of FIGS. 3 and 4. Hereinafter, the differences will be mainly described, and other parts will be replaced with the above-described embodiment of FIGS. 3 and 4.

5 and 6, the label unit 200 of the battery pack according to the present exemplary embodiment includes an insulating sheet 210 and an adhesive unit 220 disposed on one surface of the insulating sheet 210. The label unit 200 may be attached to surround the outer circumferential surface except for the upper and lower surfaces of the battery pack.

The insulating sheet 210 has a first surface 210a and a second surface 210b on the opposite side of the first surface 210a. Referring to FIG. 1, the first surface 210a of the insulating sheet 210 is formed. ) May be disposed toward the outside of the battery pack, and the second surface 210b may be disposed to face the battery pack. The adhesive part 220 may be disposed between the second surface 210b of the insulating sheet 210 and the outer circumferential surface of the battery pack so that the label part 200 may be adhered to the battery pack. In FIG. 5, the second surface 210b of the insulating sheet 210 is illustrated.

The first adhesive region 222 may be disposed in the first region A1 of the insulating sheet 210, and the second adhesive region 224 may be disposed in the third region A3 of the insulating sheet 210. As described above, the adhesive layer is not disposed in the second region A2. In the present embodiment, the first adhesive region 222 may include a first adhesive material, and the second adhesive region 224 may include a second adhesive material. In an embodiment, the first adhesive material and the second adhesive material may be different from each other, and the adhesive force of the first adhesive material may be weaker than that of the second adhesive material. Accordingly, the first region A1 is provided as a weakly adhesive region, and the third region A3 is provided as a region having a stronger adhesive force than the weakly adhesive region. In the present embodiment, the first adhesive region 222 may have a first adhesive force, and the second adhesive region 224 may have a second adhesive force. The first adhesive force may be weaker than the second adhesive force.

Meanwhile, in the present exemplary embodiment, the first adhesive region 222 may have a pattern provided to be repeatedly spaced apart. As described above, the adhesive force of the first adhesive region 222 is weaker than the adhesive force of the second adhesive region 224, so that the adhesive force of the first adhesive region 222 is the same as that of the second adhesive region 224. It may mean weaker than the adhesive force of). As described above, in the adhesive force of the first adhesive region 222 and the adhesive force of the second adhesive region 224 different from each other, the first adhesive region is formed of a weak adhesive region simultaneously with or separately from each other. By patterning the adhesive region 222, it is possible to weakly provide the adhesive force to the same area. In an embodiment, in FIG. 5, the first adhesive region 222 is patterned to have a dot shape 222D.

In general, the label unit 200 is provided in the battery pack by directly attaching a person, not an automated system of the machine in the manufacturing process. In attaching the label unit 200 to the battery cell 100, when the label unit 200 is not aligned at the same time with the battery cell 100, the label unit 200 that is attached must be removed and reattached. do. In this case, a defect such as peeling or disconnection of the antenna pattern 310 formed of a thin film of metal occurs, and when the label unit 200 is reattached as a result of statistics, a battery pack having the antenna pattern 310 as described above. The defective rate of occupies more than 60% of the total defective rate, and structural improvement is strongly required to solve this problem.

In the battery pack according to an embodiment of the present invention, the label portion 200 is reattached by removing the adhesive portion 220 of the label portion 200 located at the portion corresponding to the antenna portion 300 or by weakly providing the adhesive force. When the damage to the antenna unit 300 was remarkably solved. In the case of applying such a structure, it is expected that the defect rate generated when the label unit 200 is reattached to near zero.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

100: battery cell
120: upper case
122: terminal groove
124: external terminal
130: lower case
200: label portion
210: insulating sheet
220: adhesive part
222: first adhesive region
224: second adhesive region
300: antenna unit
310: antenna pattern
312: insulation film

Claims (15)

Battery cells;
An antenna unit disposed on one surface of the battery cell;
A first surface and a second surface opposite to the first surface, surrounding the outer circumferential surface of the battery cell such that the first surface faces outward, wherein the second surface surrounds the first region and the first region; An insulating sheet comprising two regions and a third region other than the above, wherein the first region and the second region correspond to the antenna portion; And
An adhesive part disposed in the first region of the insulating sheet and including a first adhesive region having a first adhesive force and a second adhesive region disposed in the third region and having a second adhesive force greater than the first adhesive force;
A battery pack having a. The method of claim 1,
The antenna part includes an antenna pattern disposed to correspond to the second area, and the adhesive part is disposed except the second area. The method of claim 2,
And the antenna pattern has a loop shape. The method of claim 1,
The antenna unit is a battery pack, an antenna for NFC (Near Field Communication) function. The method of claim 1,
Wherein the first adhesive region comprises a first adhesive material, the second adhesive region comprises a second adhesive material, and wherein the first adhesive material and the second adhesive material are different from each other. The method of claim 5,
And the first adhesive material has a weaker adhesive force than the second adhesive material. The method of claim 1,
And the first adhesive region is patterned to be repeatedly spaced apart. The method of claim 1,
The antenna pack includes an antenna terminal disposed to correspond to the second area. Battery cells;
A metal pattern disposed on one surface of the battery cell and having a loop shape; And
An adhesive sheet including an insulating sheet disposed to surround an outer circumferential surface of the battery cell and a first adhesive region and a second adhesive region disposed on one surface of the insulating sheet and spaced apart from each other so that the insulating sheet is attached to the battery cell. Including, a label portion;
A battery pack having a. The method of claim 9,
The metal pattern is a NFC (Near Field Communication) antenna, the battery pack. The method of claim 9,
And the insulating sheet has a separation region between the first adhesive region and the second adhesive region, and the separation region is disposed to correspond to the metal pattern. The method of claim 9,
The adhesive part may include a first adhesive region located inside the loop based on the metal pattern and including a first adhesive material and a second adhesive region located outside the loop and including a second adhesive material. And the second adhesive material is different from each other. The method of claim 12,
And the first adhesive material has a weaker adhesive force than the second adhesive material. The method of claim 9,
The adhesive part may include a first adhesive region positioned inside the loop based on the metal pattern and having a first adhesive force, and a second adhesive region positioned outside the loop and having a second adhesive force, wherein the first adhesive force may correspond to the second adhesive region. Battery pack weaker than adhesion. The method of claim 9,
The battery cell includes an external terminal on one side,
A portion of the first adhesive region is located in correspondence with the metal pattern, and another portion of the first adhesive region is located in correspondence with the external terminal.
And the first adhesive region has a weaker adhesive force than the second adhesive region.

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