Battery tape and battery having battery tape attached thereto

Abstract

To provide: a battery tape having a structure with improved mold release force; and a battery having the battery tape attached thereto.SOLUTION: A battery tape includes: a first adhesive member configured to be attached to at least a portion of a first surface of a battery; and a second adhesive member extending from a side portion of the first adhesive member and configured to be attached to at least another portion of the battery. The first adhesive member has a 1_1th subregion and a 1_2th subregion having a lower adhesive force than the 1_1th subregion, and the 1_2th subregion is positioned in a region in contact with the second adhesive member.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a battery tape and a battery to which the battery tape is adhered, and more particularly to a battery tape and a battery to which the battery tape is adhered that have a structure with improved release force. [Background technology]

[0002] Unlike primary batteries, which are not rechargeable, secondary batteries are batteries that can be charged and discharged. Low-capacity secondary batteries are used in small portable electronic devices such as smartphones, feature phones, laptop computers, digital cameras, and camcorders, while high-capacity secondary batteries are widely used as motor drive power sources and power storage batteries in hybrid vehicles, electric vehicles, and the like. Such secondary batteries include an electrode assembly consisting of a positive electrode and a negative electrode, a case that houses the electrode assembly, and electrode terminals connected to the electrode assembly.

[0003] In particular, when batteries are installed in small portable electronic devices, battery tapes are attached to the devices. The battery tape must prevent the battery from shifting position within the electronic device and also prevent the battery from separating if the electronic device is dropped. Furthermore, battery tapes that can be easily removed from electronic devices are required.

[0004] The foregoing information disclosed in this Background of the Invention section is intended solely to enhance understanding of the background of the present invention and may therefore include information that does not constitute prior art. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 2017-134887 Summary of the Invention [Problem to be solved by the invention]

[0006] The present disclosure provides a battery tape and a battery to which the battery tape is attached to solve the above problems.

[0007] However, the technical problems that the present invention aims to solve are not limited to the above-mentioned problems, and other problems that are not mentioned will be clearly understood by those skilled in the art from the description of the invention provided below. [Means for solving the problem]

[0008] According to one embodiment of the present disclosure to solve the above technical problem, a battery tape includes a first adhesive member adhering to at least a portion of a first surface of a battery, and a second adhesive member extending from a side of the first adhesive member and adhering to at least a portion of the battery, wherein the first adhesive member includes a 1_1 sub-region and a 1_2 sub-region having weaker adhesive strength than the 1_1 sub-region, and the 1_2 sub-region may be located in an area in contact with the second adhesive member.

[0009] According to one embodiment of the present disclosure, the first and second sub-regions may be free of adhesive force.

[0010] According to one embodiment of the present disclosure, the second adhesive member includes a 2_1 sub-region, which is located in an area contacting the first adhesive member and can extend in a first direction.

[0011] According to an embodiment of the present disclosure, the length of the 2_1 sub-region can be shorter than the length of the first adhesive member based on the first direction.

[0012] According to an embodiment of the present disclosure, the length of the 1_2 sub-region can be shorter than the length of the 2_1 sub-region based on the first direction.

[0013] According to one embodiment of the present disclosure, the center of the 1_2 sub-region may coincide with the center of the 2_1 sub-region based on the first direction.

[0014] According to one embodiment of the present disclosure, the 2_1 subregion has a width in a second direction perpendicular to the first direction, and the width of the 1_2 subregion can be shorter than the width of the 2_1 subregion.

[0015] According to one embodiment of the present disclosure, the 2_1 sub-region can have a stronger adhesive force than the 1_1 sub-region.

[0016] According to an embodiment of the present disclosure, the first adhesive member may include first to third sub-regions located at the edge of the first adhesive member and from which adhesive force is removed.

[0017] According to an embodiment of the present disclosure, the first adhesive member may have a plurality of edges, and first to third sub-regions may be located on each of the plurality of edges.

[0018] According to one embodiment of the present disclosure, the first to third sub-regions may be formed in an "L" shape.

[0019] According to one embodiment of the present disclosure, the second adhesive member further includes a 2_2 sub-region, and the 2_2 sub-region can be adhered to at least one of a second surface of the battery opposite to the first surface of the battery or a side surface of the battery.

[0020] According to an embodiment of the present disclosure, the second adhesive member may include a tension portion in which a portion of the second adhesive member is extended in the second direction.

[0021] According to one embodiment of the present disclosure, at least a portion of the tensioning portion has adhesive properties, and the tensioning portion can be adhered to at least one of a second surface of the battery opposite to the first surface of the battery or a side surface of the battery.

[0022] According to an embodiment of the present disclosure, the tensioning portion may include second and third sub-regions in which adhesive force is removed from a portion of the tensioning portion.

[0023] According to one embodiment of the present disclosure, a battery with a battery tape attached thereto is coupled to a battery housing, and the battery can be separated from the battery housing by a tension member.

[0024] According to one embodiment of the present disclosure, the second adhesive member includes a folding portion extending in a first direction (the first direction is perpendicular to the second direction), and the tension portion is folded against the side of the battery by the folding portion.

[0025] According to one embodiment of the present disclosure, the release force between the first adhesive member and the battery may be reduced in proportion to the size of the first_2 sub-region.

[0026] According to an embodiment of the present disclosure, the first adhesive member may have an area larger than the area of ​​the first surface of the battery.

[0027] A battery to which a battery tape according to an embodiment of the present disclosure is adhered can be provided. [Effects of the Invention]

[0028] According to various embodiments of the present disclosure, the pull portion allows the battery, to which the battery tape is attached, to be separated from the battery housing portion.

[0029] According to various embodiments of the present disclosure, the magnitude of the release force may be equal to or greater than a predetermined magnitude, thereby improving the increase in the release force between the first adhesive member and the battery.

[0030] According to various embodiments of the present disclosure, the release force between the first adhesive member and the battery can be appropriately strong by adjusting the length of the first and second sub-regions.

[0031] However, the effects obtained by the present invention are not limited to the effects described above, and other technical effects not mentioned herein should be clearly understood by those skilled in the art from the description of the invention set forth below. [Brief explanation of the drawings]

[0032] The following drawings and the like attached to this specification illustrate preferred embodiments of the present invention and, together with the detailed description of the invention described below, serve to further understand the technical concept of the present invention. Therefore, the present invention should not be interpreted as being limited to only the matters depicted in such drawings. [Figure 1] FIG. 1 is a plan view of a battery tape according to an embodiment of the present invention. [Figure 2] 1 is a plan view of a battery with a portion of a battery tape adhered in accordance with an embodiment of the present invention; [Figure 3] FIG. 1 is a perspective view showing a battery to which a battery tape according to an embodiment of the present disclosure is attached. [Figure 4] FIG. 1 is a side view illustrating a battery coupled to a battery housing according to one embodiment of the present disclosure. [Figure 5] FIG. 10 is a plan view showing a comparative example of the battery tape of the present disclosure. [Figure 6] 10 is a graph showing the results of a release force experiment for a comparative example of a battery tape of the present disclosure. [Figure 7] FIG. 1 is a plan view showing a battery tape according to a first embodiment of the present disclosure. [Figure 8] FIG. 10 is a plan view showing a battery tape according to a second embodiment of the present disclosure. [Figure 9] FIG. 10 is a plan view showing a battery tape according to a third embodiment of the present disclosure. [Figure 10] 10 is a graph illustrating release force according to several examples of battery tapes of the present disclosure. [Figure 11] 1 is a flowchart illustrating an example of a battery tape adhesion method according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0033] Preferred embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. First, the terms and phrases used in this specification and claims should not be construed as being limited to their ordinary and dictionary meanings, but should be construed in a way that is consistent with the technical concept of the present invention, based on the principle that the inventor can appropriately define the concepts of terms in order to best describe his or her invention. Therefore, it should be understood that the embodiments described in this specification and the configurations shown in the drawings are merely some preferred embodiments of the present invention and do not represent the entire technical concept of the present invention, and that various equivalents and modifications may exist as of the time of filing this application.

[0034] Furthermore, as used herein, "comprise," "comprising," "include," and "including" specify the presence of a stated shape, number, step, operation, member, element, and / or group, but do not exclude the presence or addition of one or more other shapes, numbers, operations, members, elements, and / or groups. Furthermore, when describing an embodiment of the present invention, "may" and "may be" can include "one or more embodiments of the present invention."

[0035] In order to facilitate understanding of the invention, the accompanying drawings may not be drawn to scale, and the dimensions of some components may be exaggerated. In addition, the same reference numerals are used to refer to the same components in different embodiments.

[0036] A statement that two comparison objects are "identical" means that they are "substantially identical." Therefore, being substantially identical can include cases where there is a deviation that is considered low in the art, for example, a deviation of 5% or less. Furthermore, a statement that a certain parameter is uniform in a given region can mean that the parameters are uniform on average.

[0037] Although terms such as "first" and "second" are used to describe various components, it is understood that these components are not limited by these terms. These terms are merely used to distinguish one component from another, and unless otherwise specified, a first component can also be a second component.

[0038] Throughout the specification, unless specifically stated to the contrary, each element may be singular or plural.

[0039] The phrase "above (or below)" a component or "above (or below)" a component means that the component is not only placed in contact with the upper surface (or lower surface) of the component, but also means that other components may be interposed between the component and the component placed above (or below) the component.

[0040] Furthermore, when a component is described as being "coupled," "coupled," or "connected" to another component, it should be understood that the components may be directly coupled or connected to each other, but that other components may be "intervening" between the components, or that each component may be "coupled," "coupled," or "connected" via other components.

[0041] Furthermore, when a part is said to be electrically coupled to another part, this includes not only the case where they are directly coupled, but also the case where they are coupled via another element in between.

[0042] Throughout the specification, when we say "A and / or B," this means A only, B only, or A and B, unless specifically stated to the contrary. That is, "and / or" includes all or any combination of the listed items. When we say "C through D," this means at least C and at most D, unless specifically stated to the contrary.

[0043] FIG. 1 is a plan view of a battery tape 100 according to an embodiment of the present invention. FIG. 2 is a plan view of a battery 200 to which a portion of the battery tape 100 according to an embodiment of the present invention is adhered. The battery 200 can supply power to at least one component of an electronic device. For example, the battery 200 can include a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell. In one embodiment, the battery 200 can be integrated into an electronic device. Additionally or alternatively, the battery 200 can be detachably mounted in the electronic device for replacement. An electronic device including the battery 200 can include a battery receiving portion for accommodating the battery 200. The battery tape 100 can include a first adhesive member 110 and a second adhesive member 120. The first adhesive member 110 can be adhered to at least a portion of a first surface of the battery. In this case, the first surface of the battery 200 can be, but is not limited to, the bottom surface of the battery 200. The battery 200 and the battery accommodating part may be coupled together with the bottom surface of the battery 200 facing the battery accommodating part. The coupling relationship between the battery 200 and the battery accommodating part will be described in detail with reference to FIG.

[0044] The second adhesive member 120 may extend from a side of the first adhesive member 110 and adhere to at least a portion of the battery 200. For example, the second adhesive member 120 may adhere to at least one of a second surface of the battery 200 opposite the first surface of the battery 200 or a side surface of the battery 200. When the second adhesive member 120 adheres to at least a portion of the battery 200, the bond between the battery tape 100 and the battery 200 may be stronger.

[0045] The first adhesive member 110 may include a first sub-region 112. The first sub-region 112 may be adhered to at least a portion of the first surface of the battery. The first sub-region 112 may have adhesive strength.

[0046] Referring to FIG. 1, the first sub-region 112 may have the same adhesive strength per unit area. To impart adhesive strength to the first sub-region 112, an adhesive may be applied to the first sub-region 112. The adhesive may be applied in the form of dots spaced at regular intervals on the first sub-region 112. The larger the size of the dots, the greater the adhesive strength per unit area of ​​the sub-region. Furthermore, the closer the spacing between the dots, the greater the adhesive strength per unit area of ​​the sub-region. However, the adhesive strength per unit area is not determined solely by the size and spacing of the dots. For example, the adhesive strength per unit area may also be determined by the material and thickness of the adhesive.

[0047] The first adhesive member 110 may include a first_second sub-region 114. The first_second sub-region 114 may be located in a region in contact with the second adhesive member 120.

[0048] The first_2 sub-region 114 may have a weaker adhesive strength than the first_1 sub-region 112. Here, a region without adhesive strength may be expressed as having a weaker adhesive strength than a region with adhesive strength. For example, the first_2 sub-region 114 may have no adhesive strength and therefore may have a weaker adhesive strength than the first_1 sub-region 112. As a result, when the first adhesive member 110 is adhered to the battery 200, the bond between the region of the battery 200 corresponding to the first_2 sub-region 114 and the first adhesive member 110 may be relatively weak.

[0049] In one embodiment, the first adhesive member 110 may include a 1_3 sub-region 116. The 1_3 sub-region 116 may be located on an edge of the first adhesive member 110. The 1_3 sub-region 116 may be a region lacking adhesive strength. As a result, when the first adhesive member 110 is adhered to the battery 200, the bond between the region of the battery 200 corresponding to the 1_3 sub-region 116 and the first adhesive member 110 may be relatively weak. The weakened bond in this region may improve the joint structure between the battery and the battery tape.

[0050] The first_3 sub-region 116 may have various shapes. For example, the first_3 sub-region 116 may be "L" shaped. In this case, an edge of the "L" shape of the first_3 sub-region 116 may correspond to an edge of the first adhesive member 110. As another example, the first_3 sub-region 116 may be square shaped. As another example, the first_3 sub-region 116 may be triangular shaped. For example, the first_3 sub-region 116 may be a right-angled triangle shaped. The first_3 sub-region 116 may be positioned such that the right angle of the right-angled triangle corresponds to the edge of the first adhesive member 110. 1, in the first adhesive member 110, the 1_3 sub-regions 116 are shown symmetrical about the X-axis and / or Y-axis based on the center of the first adhesive member 110, but are not limited thereto and may be asymmetrical in the first adhesive member 110. Also, when the 1_3 sub-regions 116 exist as regions separated from each other, the shapes of the separated regions may be different from each other. The shape of the 1_3 sub-region 116 is not limited to the above description and may have various shapes.

[0051] In one embodiment, the first adhesive member 110 may have a plurality of edges. The first adhesive member 110 may also include a plurality of first-third sub-regions 116. Each of the plurality of first-third sub-regions 116 may be located on each of the plurality of edges of the first adhesive member 110.

[0052] In one embodiment, the second adhesive member 120 may include a 2_1 sub-region 122. The 2_1 sub-region 122 may be located in a region that contacts the first adhesive member 110. The 2_1 sub-region 122 may extend in a first direction. That is, the 2_1 sub-region 122 may have a length in the first direction and a width in the second direction.

[0053] In one embodiment, the first direction may be the horizontal or vertical direction of the battery tape 100. The second direction may be a direction perpendicular to the first direction. For example, if the battery tape 100 has a rectangular shape, the first direction may be the vertical direction of the battery tape 100, and the second direction may be the horizontal direction of the battery tape 100. Referring to FIG. 1 , the first direction may be the X-axis direction, and the second direction may be the Y-axis direction.

[0054] In one embodiment, the length of the 2_1 sub-region 122 can be shorter than the length of the first adhesive member 110 based on the first direction.

[0055] In one embodiment, the 1_2 sub-region 114 may be located in a region that contacts the 2_1 sub-region 122. This may facilitate the removal of the first adhesive member 110 when the battery tape 100 is removed from the battery 200 after the 2_1 sub-region 122 and the battery 200 are separated.

[0056] In one embodiment, the center of the 1_2 subregion 114 may coincide with the center of the 2_1 subregion 122 based on the first direction. In one embodiment, the width of the 1_2 subregion 114 may be shorter than the width of the 2_1 subregion based on the second direction. In one embodiment, the length of the 1_2 subregion 114 may be shorter than the length of the 2_1 subregion 122 based on the first direction.

[0057] In one embodiment, the 2_1 sub-region 122 may have a stronger adhesive strength than the 1_1 sub-region 112. Also, the 2_1 sub-region 122 may have a stronger adhesive strength per unit area than other regions in the second adhesive member 120. As a result, the degree to which the 2_1 sub-region 122 is bonded to at least one of the side surface or the second surface of the battery 200 may be stronger than the degree to which the first adhesive member 110 is bonded to at least a portion of the first surface of the battery 200. Referring to FIG. 1 , the black background region is a region where adhesive is continuously applied, and the black background region may have a stronger adhesive strength per unit area than the dot-shaped region.

[0058] In one embodiment, the second adhesive member 120 may include a plurality of 2_2 sub-regions 126. The 2_2 sub-regions 126 may have the same or similar adhesive strength to the 2_1 sub-regions 122.

[0059] In one embodiment, the second_2 subregion 126 may be adhered to at least one of the second surface or side surfaces of the battery 200. For example, the side surface of the battery 200 may be connected to the first surface and the second surface of the battery 200. The first surface of the battery 200 may correspond to the bottom surface of the battery 200, and the second surface of the battery 200 may correspond to the top surface of the battery 200. If the battery 200 is a hexahedron, the side surfaces of the battery 200 may include a third surface, a fourth surface, a fifth surface, and a sixth surface that are connected to the first surface and the second surface. The third surface may face the fifth surface, and the fourth surface may face the sixth surface. One of the plurality of second_2 subregions 126 may be adhered to at least one of the second surface or the third surface. Another of the plurality of 2_2 sub-regions 126 may be adhered to at least one of the second surface or the fifth surface opposite the third surface, and another of the plurality of 2_2 sub-regions 126 may be adhered to at least one of the fourth surface, the sixth surface, or the top surface.

[0060] In one embodiment, the second adhesive member 120 may include a tension portion 124 extending in the second direction from a portion of the second adhesive member 120. At least a portion of the tension portion 124 may have adhesive force. At least a portion of the tension portion 124 having adhesive force may be attached to at least one of the second surface of the battery 200 or a side surface of the battery.

[0061] In one embodiment, the tensioning portion 124 may include a second sub-region 126. For example, the second sub-region 126 may be formed on the frame of the tensioning portion 124. The second sub-region 126 may be formed on one or both sides of the tensioning portion 124 based on a first direction, or on one side based on a second direction. The second sub-region 126 may be adhered to at least one of the second surface of the battery 200 or a side surface of the battery, thereby allowing the tensioning portion 124 to be adhered to the battery 200. A portion of the tensioning portion 124, excluding the second sub-region 126, may also have adhesive strength. The adhesive strength of the portion of the tensioning portion 124, excluding the second sub-region 126, may be the same as or weaker than the adhesive strength of the first sub-region 112.

[0062] In one embodiment, the pull portion 124 may include a second-third sub-region 128 that is free of adhesive force in a portion of the pull portion 124. For example, the second-third sub-region 128 may be located on an edge of the pull portion 124. The second-third sub-region 128 that is free of adhesive force can be used to detach the pull portion 124 from the battery 200.

[0063] In one embodiment, the second adhesive member 120 may include a tear line. For example, the tear line may be formed around the periphery of the 2_1 subregion 122. Because the adhesive strength of the 2_1 subregion 122 is greater than that of the 1_1 subregion 112, the battery tape 100 may be more firmly bonded to the 2_1 subregion 122 than to the 1_1 subregion 112. When the battery tape 100 is pulled using the tension member 124, the battery tape 100 is divided along the tear line into a portion including the 1_1 subregion 112 and a portion including the 2_1 subregion 122.

[0064] In one embodiment, the second adhesive member 120 may include a folded portion extending in the first direction. The second adhesive member 120 is folded by the folded portion toward an edge portion of the battery 200. This allows the second adhesive member 120 including the tension portion 124 and the second sub-region 126 to be adhered to at least one of the side surface or the second face of the battery.

[0065] 2, when adhering the battery tape 100 to the battery 200, the battery 200 can be positioned on the battery tape so that the first surface of the battery 200 faces the first adhesive member 110. The first adhesive member 110 can be wider than the area of ​​the first surface of the battery 200. Then, the second adhesive member 120 is folded onto the side of the battery 200 using the folding portion 129. An adhesive region included in the second adhesive member 120 (e.g., the 2_1 sub-region 122, the 2_2 sub-region 126, at least a portion of the tension portion 124, etc.) can be adhered to at least one of the side or second surface of the battery 200. The structure in which the battery tape 100 is attached to the battery 200 will be described in detail with reference to FIG. 3.

[0066] The first to third sub-regions 116 can reduce noise generated from adhesion and / or detachment of the battery 200 and the first adhesive member 110. The joint between the battery 200 and the first adhesive member 110 can be improved. In addition, the first to third sub-regions 116 can supplement the bond between the battery 200 and the first adhesive member 110 with the second adhesive member 120 when the bond between the battery 200 and the first adhesive member 110 weakens.

[0067] 3 is a perspective view showing a battery 310 to which a battery tape 320 according to an embodiment of the present disclosure is adhered. As shown in FIGS. 1 and 2, the first surface of the battery 310 may be adhered to the first adhesive member of the battery tape 320. Then, the second adhesive member 322 may be folded onto the side surface of the battery 310 using the folding portion 129, and the adhesive region included in the second adhesive member 322 may adhere the second adhesive member 322 to at least one of the side surface or the second surface of the battery 310. Although FIG. 3 omits some components of the second adhesive member 322, the present disclosure is not limited thereto.

[0068] 3, the battery 310 is shown with the battery tape 320 attached to its surface, but the present invention is not limited thereto. For example, the battery 310 may have an insulating member, insulating tape, a protective film, markings indicating information about the battery 310, or the like attached / coupled to at least a portion of its surface. The battery tape 320 may be attached to a battery 310 that has other components attached / coupled to its surface.

[0069] With the battery tape 320 attached to the battery 310, the battery 310 can be attached to the battery receiving part. The first surface of the battery 310, to which the first adhesive member is attached, can be attached so as to face the battery receiving part. The structure for attaching the battery 310, to which the battery tape 320 is attached, to the battery receiving part will be described in detail with reference to FIG. 4.

[0070] 4 is a side view showing a battery 410 coupled to a battery receiving portion 430 according to an embodiment of the present disclosure. Referring to FIG. 4, the battery receiving portion 430 may include a space for receiving the battery 410 to which the battery tape 420 is attached. For example, the battery receiving portion 430 may be a space for receiving the battery 410 that supplies power to an electronic device.

[0071] The first adhesive member 422 of the battery tape 420 may be adhered to a first surface of the battery 410. The folding portion 424 allows the second adhesive member 426 to be folded against the side surface of the battery 410. This allows the second adhesive member 426 to be adhered to at least a portion of the side surface or second surface of the battery 410. Similarly, the tensioning portion 428 may be adhered to at least a portion of the side surface or second surface of the battery 410. While FIG. 4 illustrates the tensioning portion 428 adhering to the second surface of the battery, the present disclosure is not limited thereto.

[0072] The battery tape 420 may include a first surface on which the first adhesive member 422 is formed and a second surface facing the first surface of the battery 410. The first surface of the battery tape 420 may be adhered to face the battery 410. The battery 410 with the battery tape 420 adhered thereto may be placed so that the second surface of the battery tape 420 faces the bottom surface of the battery receiving portion 430, and the battery 410 may be accommodated in the battery receiving portion 430.

[0073] 4, an adhesive tape may be provided between the second surface of the battery tape 420 and the bottom surface of the battery receiving portion 430. The adhesive tape has adhesive strength on both sides, which can support the connection between the battery 410 and the battery receiving portion 430 to which the battery tape 420 is attached.

[0074] The battery 410 coupled to the battery receiving portion 430 can be released from the battery receiving portion 430 using the battery tape 420. Specifically, the pulling portion 428 of the battery tape 420 can be detached from the battery 410. For example, a second sub-region (not shown) included in the pulling portion 428 may not be attached to the battery 410. The pulling portion 428 can be detached from the battery 410 by the second sub-region. The pulling portion 428 is pulled in a third direction or a direction between the second and third directions. The third direction may be perpendicular to the first and second directions. In FIG. 4 , the third direction refers to the Z direction. The third direction may also be the direction in which the open area of ​​the battery receiving portion 430 is formed. Pulling the pulling portion 428 lifts the battery tape 420 attached to the battery 410. The battery 410 coupled to the battery tape 420 is also lifted up, thereby releasing the coupling between the battery receiving portion 430 and the battery 410. The battery 410 to which the battery tape 420 is attached can be separated from the battery receiving portion 430 by the pull portion 428.

[0075] FIG. 5 is a plan view showing a comparative example of a battery tape according to the present disclosure. FIG. 6 is a graph showing the results of a release force experiment for the comparative example of a battery tape according to the present disclosure. Referring to FIG. 5, the comparative example of the battery tape is similar to the battery tape 100 of FIG. 1 except that the adhesive strength of the first_2 subregion 114 and the first_3 subregion 116 is the same as that of the first_1 subregion 112. In the comparative example of the battery tape 100 of FIG. 1, the first_2 subregion 114 may also have adhesive strength. In the descriptions of FIGS. 5 and 6, for convenience of explanation, the battery tape 510 may refer to the comparative example of the battery tape. A battery 522 may be positioned on the first adhesive member 512 of the battery tape 510, and the first adhesive member 512 and the battery 522 may be adhered to each other.

[0076] In the battery 522 to which the first adhesive member is adhered, the battery tape 510 can be removed from the battery 522 by pulling the tension portion 514. Pulling the tension portion 514 of the battery tape 510 can separate the battery tape 510 and the battery 522. In the process of separating the battery, the size of the adhesive area of ​​the first adhesive member 512 and the battery 522 can gradually decrease along the second direction (A).

[0077] The release force refers to the force required when pulling the pulling unit 514 to detach the first adhesive member 512 from the battery 522. The magnitude of the release force generated can be measured as the size of the adhesive area between the first adhesive member 512 and the battery 522 decreases in the second direction (A) during the process of pulling the pulling unit 514. A release force experiment can be performed by measuring the release force between the first adhesive member 512 and the battery 522. Referring to FIG. 6, a release force experiment graph 600 can be used to confirm the magnitude of the release force according to the movement distance of the pulling unit 514.

[0078] The release force experimental graph 600 shows that a strong force is required in the initial portion of pulling the tensioning portion 514. When the first adhesive member 512 is removed from the battery 522, a portion of the first adhesive member 512 may detach from the battery 522, while a remaining portion of the first adhesive member 512 may adhere to the battery 522. At this time, a boundary may be formed between the detached portion of the first adhesive member 512 and the remaining portion of the first adhesive member 512 that remains attached to the battery 522. The boundary of the first adhesive member 512 that contacts the tensioning portion 514 is defined as the first boundary, and the boundary of the first adhesive member 512 is defined as the second boundary. The distance between the first boundary and the second boundary can be measured. The release force experimental graph 600 shows the magnitude of the release force depending on the distance between the first boundary and the second boundary. However, due to the characteristics of the battery tape 510, the battery tape 510 may stretch when the tensioning portion 514 is pulled. This may result in a difference in the length of the battery tape 510 in the demolding force experimental graph 600 from the length where the distance between the first boundary and the second boundary does not increase.

[0079] In the release force experimental graph 600, the reference distance 610 may be the distance between the first boundary and the second boundary at which the magnitude of the release force is greatest. Referring to FIG. 6, it can be seen that the magnitude of the release force is greatest at the reference distance 610 in the release force experimental graph 600. The smaller the adhesive area between the first adhesive member 512 and the battery 522, the smaller the magnitude of the release force. Here, the reference distance 610 may correspond to the area of ​​the first adhesive member 512 that contacts the 2_1 sub-region. The reference section 524 corresponds to the area of ​​the first adhesive member 512 that contacts the 2_1 sub-region. Weakening the adhesive strength of the reference section 524 of the first adhesive member 512 can reduce the maximum value of the release force. For example, in the battery tape 100 of FIG. 1, the 1_2 sub-region 114 can be configured in the area corresponding to the reference section 524 to reduce the maximum value of the release force.

[0080] FIG. 7 is a plan view of a battery tape according to a first example 710 of the present disclosure. FIG. 8 is a plan view of a battery tape according to a second example 720 of the present disclosure. FIG. 9 is a plan view of a battery tape according to a third example 730 of the present disclosure. FIG. 10 is a graph showing the release force for battery tapes according to multiple examples 710 to 730 of the present disclosure. Each of the first example 710 to the third example 730 is similar to the battery tape 100 of FIG. 1 except that the size of the first_2 subregion is different from the size of the first_2 subregion 114 of the battery tape 100 shown in FIG. 1. Alternatively, one of the first example 710 to the third example 730 may be similar to the battery tape 100 of FIG. 1.

[0081] In one embodiment, the center of the 1_2 sub-region in each of the first embodiment 710 to the third embodiment 730 may coincide with the center of the 2_1 sub-region based on the first direction, and the center of the 1_2 sub-region may coincide with the center of the 1_1 sub-region based on the first direction.

[0082] 7 to 9, in each of the first to third examples 710 to 730, a maximum of 35 adhesive dot shapes can be formed along the first direction on the first adhesive member. For example, in each of the first to third examples 710 to 730, in a region of the first adhesive member where the 1_2 sub-region and the 1_3 sub-region do not exist based on the first direction, 35 adhesive dot shapes can be formed along the first direction in that region. As another example, in each of the first to third examples 710 to 730, in a region of the first adhesive member where the 1_2 sub-region or the 1_3 sub-region exists based on the first direction, fewer than 35 dot shapes can be formed along the first direction in that region.

[0083] In the first embodiment 710, the 1_2 subregion 714 can be formed by removing three dots of adhesive from the region of the first adhesive member 712 that contacts the 2_1 subregion. In the second embodiment 720, the 1_2 subregion 724 can be formed by removing 13 dots of adhesive from the region of the first adhesive member 722 that contacts the 2_1 subregion. In the third embodiment 730, the 1_2 subregion 734 can be formed by removing 23 dots of adhesive from the region of the first adhesive member 732 that contacts the 2_1 subregion.

[0084] The first embodiment 710 to the third embodiment 730 can be subjected to the demolding force experiment described with reference to Figures 5 and 6. The results of the demolding force experiment are shown in Table 1 below.

[0085] [Table 1]

[0086] The demolding force experiment was performed three times for each of the comparative example, first example 710, second example 720, and third example 730. The average, maximum, and minimum values ​​for the three demolding force experiments were then calculated. The values ​​measured in Table 1 are the magnitude of the demolding force measured from the reference length and indicate the maximum value of the demolding force. The demolding force is measured in kgf.

[0087] 10, the magnitude of the release force according to the number of removed adhesive dots can be confirmed using the experimental results for each of a comparative example (e.g., battery tape comparative example 510 of FIG. 5), first example 710, second example 720, and third example 730. In the graph shown in FIG. 10, the average value of three release force experiments for first example 710, second example 720, and third example 730 was used. A release force of approximately 14.7 kgf was measured for the comparative example, where no adhesive dots were removed. A release force of approximately 12.9 kgf was measured for first example 710, where three adhesive dots were removed. A release force of approximately 11.9 kgf was measured for second example 720, where 13 adhesive dots were removed. A release force of approximately 10.9 kgf was measured for third example 730, where 23 adhesive dots were removed. 10, a graph is displayed linking the data for the comparative example, the first example 710, the second example 720, and the third example 730. This shows that as the number of removed dots of adhesive increases, the size of the 1_2 sub-region without adhesive increases, and as the size of the 1_2 sub-region increases, the magnitude of the release force decreases.

[0088] If the release force is weak, the bond between the first adhesive member and the battery will be weak and they will be easily separated. Therefore, the magnitude of the release force needs to be equal to or greater than a predetermined magnitude. In one embodiment, the length of the first_2 sub-region can be made smaller than the length of the second_1 sub-region based on the first direction. For example, the number of removed dots of adhesive can be equal to or less than a certain number, and the length of the first_2 sub-region can be made smaller than the length of the second_1 sub-region. With this configuration, the magnitude of the release force can be equal to or greater than a predetermined magnitude.

[0089] The above-described configuration can improve the release force between the first adhesive member and the battery. Also, by adjusting the length of the first and second sub-regions, the release force between the first adhesive member and the battery can have an appropriate strength.

[0090] 11 is a flowchart illustrating an example of a battery tape adhesion method S1100 according to an embodiment of the present disclosure. In one embodiment, the battery tape adhesion method S1100 may begin by adhering a first adhesive member included in the battery tape to a first surface of the battery (S1110). The first adhesive member may be larger than the area of ​​the first surface of the battery. The first adhesive member may include a sub-region 1_1 and a sub-region 1_2 having a weaker adhesive strength than the sub-region 1_1, and the sub-region 1_2 may be located in an area in contact with the second adhesive member. The adhesive strength of the sub-region 1_2 may be removed.

[0091] In one embodiment, the length of the first_2 subregion may be shorter than the length of the second_1 subregion based on the first direction. The center of the first_2 subregion may coincide with the center of the second_1 subregion based on the first direction. Additionally, the second_1 subregion may have a width in a second direction perpendicular to the first direction, and the width of the first_2 subregion may be shorter than the width of the second_1 subregion. The release force between the first adhesive member and the battery may be reduced in proportion to the size of the first_2 subregion.

[0092] In one embodiment, the first adhesive member may include a first-third sub-region located at an edge of the first adhesive member and having removed adhesive force. A plurality of first-third sub-regions may be located at each of a plurality of edges of the first adhesive member. The first-third sub-regions may be formed in an "L" shape.

[0093] In one embodiment, a second adhesive member included in the battery tape and extending from a side of the first adhesive member may be adhered to at least one of a second surface or side surface of the battery opposite the first surface of the battery (S1120).

[0094] In one embodiment, the second adhesive member includes a second sub-region, which is located in a region adjacent to the first adhesive member and extends in a first direction. The length of the second sub-region can be shorter than the length of the first adhesive member based on the first direction. The second sub-region can have a stronger adhesive strength than the first sub-region.

[0095] In one embodiment, the second adhesive member further includes a 2_2 sub-region, and the 2_2 sub-region can be adhered to at least one of a second surface of the battery opposite to the first surface or a side surface of the battery.

[0096] In one embodiment, the second adhesive member may include a tension portion in which a portion of the second adhesive member extends in a second direction. At least a portion of the tension portion has adhesive force, and the tension portion may adhere to at least one of a second surface of the battery opposite the first surface or a side surface of the battery. The tension portion may also include second and third sub-regions in which adhesive force is removed.

[0097] In one embodiment, the second adhesive member includes a folded portion extending in a first direction, and the tension portion is folded against a side surface of the battery by the folded portion. The first direction can be perpendicular to the second direction.

[0098] In one embodiment, the battery can be coupled to the battery housing so that a first surface of the battery faces the battery housing (S1130). The battery can be separated from the battery housing by pulling the pull member.

[0099] 11 and the above description are merely examples, and the scope of the present disclosure is not limited to the flowchart shown in Fig. 11 and the above description. For example, one or more steps in the flowchart and the above description may be added / modified / deleted, the order of one or more steps may be changed, or one or more steps may be performed simultaneously.

[0100] Although the present invention has been described above using limited examples and drawings, it is not limited thereto, and it is of course possible for a person having ordinary skill in the art to which the present invention pertains to make various modifications and variations within the technical spirit of the present invention and the equivalent scope of the claims. [Explanation of symbols]

[0101] 100, 320, 420, 510 Battery Tape 110, 422, 512, 712, 722, 732 First adhesive member 112 Sub-area 1_1 114, 714, 724, 734 1st_2nd sub-area 116 Sub-areas 1-3 120, 322, 426 Second adhesive member 122 Sub-area 2_1 124, 428, 514 Tensile section 126 Sub-area 2_2 128 2nd_3rd sub-area 129, 424 Folding section 200, 310, 410, 522 battery 430 Battery compartment 524 Reference Section 600 Demolding force experiment graph 610 Reference Distance 710 First Example 720 Second Example 730 Third Example

Claims

1. a first adhesive member adhered to at least a portion of the first surface of the battery; a second adhesive member extending from a side of the first adhesive member and adhering to at least a portion of the battery; the first adhesive member includes a first_1 sub-region and a first_2 sub-region having a weaker adhesive strength than the first_1 sub-region, The first_2 sub-region is located in an area that contacts the second adhesive member.

2. The battery tape of claim 1 , wherein the first sub-region is non-adhesive.

3. the second adhesive member includes a second_1 sub-region, The battery tape of claim 1 , wherein the second_1 sub-region is located in a region contacting the first adhesive member and extends in a first direction.

4. The battery tape according to claim 3 , wherein a length of the second_1 sub-region is shorter than a length of the first adhesive member based on the first direction.

5. The battery tape of claim 3 , wherein a length of the first_2 sub-region is shorter than a length of the second_1 sub-region based on the first direction.

6. The battery tape of claim 3 , wherein a center of the first_2 sub-region coincides with a center of the second_1 sub-region based on the first orientation.

7. The second_1 sub-region has a width in a second direction perpendicular to the first direction, The battery tape of claim 3 , wherein a width of the first_2 sub-region is less than a width of the second_1 sub-region.

8. The battery tape of claim 3 , wherein the second sub-region has a higher adhesive strength than the first sub-region.

9. The battery tape according to claim 1 , wherein the first adhesive member includes a first_3 sub-region located at an edge of the first adhesive member and lacking adhesive strength.

10. the first adhesive member has a plurality of edges; The battery tape of claim 9 , wherein the first_third sub-region is located on each of the plurality of edges.

11. The battery tape of claim 9 , wherein the first_3 sub-region is formed in an “L” shape.

12. the second adhesive member further includes a second_2 sub-region; The battery tape of claim 1 , wherein the second_2 sub-region is adhered to at least one of a second surface of the battery opposite the first surface of the battery or a side surface of the battery.

13. The battery tape according to claim 1 , wherein the second adhesive member includes a tension portion in which a portion of the second adhesive member is extended in a second direction.

14. At least a portion of the tensioning portion has adhesive strength, The battery tape according to claim 13 , wherein the tensioning portion is adhered to at least one of a second surface of the battery opposite the first surface of the battery or a side surface of the battery.

15. The battery tape of claim 13 , wherein the tension portion includes a second sub-region where adhesive force is removed from a portion of the tension portion.

16. A battery to which the battery tape according to claim 13 is adhered.

17. The battery with the battery tape attached thereto is coupled to the battery receiving part, 17. The battery of claim 16, wherein the puller separates the battery from the battery housing.

18. 20. An electronic device comprising the battery of claim 17.

19. the second adhesive member includes a folded portion extending in a first direction; The battery tape of claim 13 , wherein the tension portion is folded against a side surface of the battery by the folding portion.

20. The battery tape of claim 1 , wherein a release force between the first adhesive member and the battery decreases in proportion to a size of the first_2 sub-region.

21. The battery tape according to claim 1 , wherein the first adhesive member has an area larger than an area of ​​the first surface of the battery.

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