Easily-torn sticker, battery and terminal equipment

Abstract

The utility model discloses an easy-to-tear sticker, a battery and terminal equipment, and belongs to the field of easy-to-tear stickers. The easy-to-tear sticker comprises an easy-to-tear film layer, a color developing layer is arranged on the easy-to-tear film layer, and a plurality of color changing pieces are arranged on the color developing layer; wherein under the condition that the easy-to-tear film layer is pressed, at least part of the color changing piece is broken, so that the color of the position, corresponding to the broken color changing piece, of the color developing layer is changed. According to the application, the color developing layer and the color changing part are arranged, so that when the easy-to-tear sticker is adhered to the battery cell, the easy-to-tear sticker is firmly adhered to the battery cell at the color changing position of the color developing layer, and the easy-to-tear sticker is not firmly adhered to the battery cell at the non-color changing position of the color developing layer, so that whether the easy-to-tear sticker is firmly adhered to the battery cell or not can be efficiently identified; therefore, force can be applied to the position where the easy-to-tear tape is not firmly adhered to the battery cell, so that the easy-to-tear tape is completely and firmly adhered to the battery cell, and the safety of the battery cell can be ensured when the battery cell is applied to the electronic equipment.

Description

Technical Field

[0001] This application belongs to the field of easy-tear adhesive tape, specifically relating to an easy-tear adhesive tape, a battery, and a terminal device. Background Technology

[0002] Currently, batteries consist of a battery casing and battery cells housed within the casing via easy-tear adhesive strips. These strips are attached to the cells before they are installed in the casing. However, conventional easy-tear adhesive strips cannot accurately and efficiently identify whether the strip is completely adhered to the cell after it is wrapped. This results in situations during production where some strips are not fully attached to the cell. Consequently, after the battery is assembled into a terminal device, the device may be dropped or impacted, causing cell damage and potentially leading to risks such as cell fires. Utility Model Content

[0003] The purpose of this application is to provide an easy-tear adhesive, a battery, and a terminal device, at least to solve the problem that the easy-tear adhesive cannot accurately and efficiently identify whether it is completely adhered to the battery cell after it has been wrapped.

[0004] In a first aspect, embodiments of this application provide an easy-tear adhesive label, the easy-tear adhesive label comprising:

[0005] An easy-tear film layer, wherein a color-developing layer is provided on the easy-tear film layer, and the color-developing layer is provided with multiple color-changing elements;

[0006] Wherein, when the easy-tear film layer is subjected to pressure, at least part of the color-changing element breaks, so that the color-developing layer changes color at the position corresponding to the broken color-changing element.

[0007] Optionally, a color-developing layer is provided on the surface of the easy-tear film layer, and a plurality of color-changing elements are provided on the surface of the color-developing layer opposite to the easy-tear film layer. Each color-changing element is provided with a first adhesive element, which is used to adhere the battery cell.

[0008] Optionally, a color-developing layer is provided on the easy-tear film layer, and a plurality of color-changing elements are provided between the color-developing layer and the easy-tear film layer. A plurality of first adhesive elements are provided on the surface of the color-developing layer away from the easy-tear film layer, and one first adhesive element is positioned opposite to one of the color-changing elements. The first adhesive elements are used to bond the battery cell.

[0009] Wherein, when the easy-tear film layer is subjected to pressure, at least part of the color-changing element breaks, so that the color-developing layer changes color at the position corresponding to the broken color-changing element.

[0010] Optionally, the easy-tear film layer has a setting surface, the setting surface has an activation area, and the activation area has multiple activation points;

[0011] The color-developing layer is disposed on the activation area and covers the activation area. Among the multiple color-changing elements on the surface of the color-developing layer away from the easy-tear film layer, one color-changing element is positioned opposite to one of the activation points.

[0012] Optionally, the easy-tear film layer has a setting surface, the setting surface has an activation area, and the activation area has multiple activation points;

[0013] One color-changing element is provided in one of the activation points, and the color-developing layer covers the activation area and multiple color-changing elements.

[0014] Optionally, the mounting surface further includes an adhesive area, wherein a second adhesive element is provided in the adhesive area, and the adhesive strength of the second adhesive element is greater than that of the first adhesive element.

[0015] Optionally, the easy-tear adhesive has a first direction along its surface, the activation area includes a first sub-activation area and a second sub-activation area, and the adhesive area includes a first sub-adhesive area and a second sub-adhesive area.

[0016] The first sub-activation area and the second sub-activation area are distributed at intervals along the first direction. The first sub-adhesion area is located between the first sub-activation area and the second sub-activation area. Along the first direction, the second sub-adhesion area is located on the side of the second sub-activation area away from the first sub-activation area.

[0017] Both the first sub-activation area and the second sub-activation area have the activation point, and both the first sub-adhesive area and the second sub-adhesive area are provided with the second adhesive.

[0018] Optionally, the easy-tear adhesive also has a second direction along the surface of the easy-tear adhesive, the second direction being orthogonal to the first direction;

[0019] Multiple first sub-adhesive areas are arranged sequentially along the second direction, and some of the first sub-adhesive areas are misaligned with the remaining first sub-adhesive areas in the first direction. The second sub-adhesive area is provided with multiple second adhesive members, which are arranged sequentially along the second direction, and the multiple second adhesive members cover the second sub-adhesive area.

[0020] Optionally, the color-changing component includes a housing and a color-changing material disposed in the housing, the housing being ruptureable under pressure;

[0021] When the easy-tear film layer is subjected to pressure, the housing breaks, allowing the color-changing material to come into contact with the color-developing layer, causing the color-developing layer to change color.

[0022] Optionally, the easy-tear adhesive has a first direction and a second direction along the surface of the easy-tear adhesive, the first direction and the second direction being orthogonal, and the easy-tear film layer has a first side edge extending along the second direction;

[0023] The first side has a first protrusion that protrudes from the first side along the first direction.

[0024] Optionally, the easy-tear adhesive also has a second side, which is opposite to the first side in the first direction;

[0025] The second side has a second protrusion along the first direction, the second protrusion being on the second side.

[0026] Optionally, the thickness of the easy-tear adhesive is L mm, satisfying: 0.03 ≤ L ≤ 0.3.

[0027] Secondly, embodiments of this application provide a battery, the battery including a battery cell and an easy-tear adhesive as described in any one of the first aspects above;

[0028] The easy-tear film layer is attached to the battery cell via a first adhesive.

[0029] Thirdly, embodiments of this application provide a terminal device, which includes the battery described in the second aspect above.

[0030] In this embodiment, since a color-developing layer is provided on the easy-tear film layer, and multiple color-changing elements are connected to the color-developing layer, when the easy-tear sticker provided in this embodiment is applied to the battery cell, it can be directly applied to the battery cell. After the easy-tear sticker is adhered to the battery cell, during the process of pressing the easy-tear sticker with rollers to ensure that the easy-tear sticker is firmly adhered to the battery cell, the easy-tear film layer will be subjected to force, causing at least some of the color-changing elements to break. The broken color-changing elements can cause the corresponding position of the color-developing layer to change color, thereby determining that the easy-tear sticker is firmly adhered to the battery cell at the position where the color-developing layer changes color, while at the position where the color-developing layer does not change color, the easy-tear sticker is not firmly adhered to the battery cell. In other words, in this embodiment of the application, by setting a color-developing layer and a color-changing component, when the easy-tear sticker is adhered to the battery cell, the easy-tear sticker is firmly adhered to the battery cell at the position where the color-developing layer changes color, and is not firmly adhered to the battery cell at the position where the color-developing layer does not change color. This allows for efficient identification of whether the easy-tear sticker is firmly adhered to the battery cell, and then force can be applied to the position where the easy-tear sticker is not firmly adhered to the battery cell, so that the easy-tear sticker is completely firmly adhered to the battery cell. This ensures the safety of the battery cell when it is used in electronic devices. Attached Figure Description

[0031] Figure 1 This is a cross-sectional view of an easy-tear adhesive provided in an embodiment of this application;

[0032] Figure 2 This is a schematic diagram illustrating an easy-tear film layer provided in an embodiment of this application;

[0033] Figure 3 This is a schematic diagram illustrating a second adhesive element disposed on an easy-tear film layer according to an embodiment of this application;

[0034] Figure 4 This is a schematic diagram illustrating a color-changing component provided in an embodiment of this application.

[0035] Figure label:

[0036] 10: Easy-tear film layer; 11: Activation area; 12: Adhesive area; 103: First side; 104: Second side; 111: First sub-activation area; 112: Second sub-activation area; 121: First sub-adhesive area; 122: Second sub-adhesive area; 1031: First protrusion; 1041: Second protrusion; 20: Color developing layer; 30: Color changing component; 31: Housing; 32: Color changing material; 40: First adhesive component; 50: Second adhesive component; X: First direction; Y: Second direction. Detailed Implementation

[0037] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0038] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0039] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0040] like Figures 1 to 4 As shown, the easy-tear sticker includes: an easy-tear film layer 10, an easy-tear film layer 10, a color-developing layer 20 disposed on the easy-tear film layer 10, and a plurality of color-changing elements 30 connected to the color-developing layer 20; wherein, when the easy-tear film layer 10 is subjected to pressure, at least some of the color-changing elements 30 rupture, so that the color-developing layer 20 changes color at the position corresponding to the ruptured color-changing elements 30.

[0041] In this embodiment, since a color-developing layer 20 is provided on the easy-tear film layer 10, and multiple color-changing elements 30 are connected to the color-developing layer 20, when the easy-tear sticker provided in this embodiment is applied to the battery cell, it can be directly applied to the battery cell. After the easy-tear sticker is adhered to the battery cell, the easy-tear film layer 10 will be subjected to force during the process of pressing the easy-tear sticker with the battery cell by rollers to ensure that the easy-tear sticker is firmly adhered to the battery cell. This causes at least some of the color-changing elements 30 to break. The broken color-changing elements 30 can cause the corresponding position of the color-developing layer 20 to change color. Thus, it can be determined that the easy-tear sticker is firmly adhered to the battery cell at the position where the color-developing layer 20 changes color, while at the position where the color-developing layer 20 does not change color, the easy-tear sticker is not firmly adhered to the battery cell. In other words, in this embodiment of the application, by setting a color-developing layer 20 and a color-changing element 30, when the easy-tear sticker is adhered to the battery cell, the easy-tear sticker is firmly adhered to the battery cell at the color-changing position of the color-developing layer 20, and not firmly adhered to the battery cell at the non-color-changing position of the color-developing layer 20. This allows for efficient identification of whether the easy-tear sticker is firmly adhered to the battery cell, and then force can be applied to the position where the easy-tear sticker is not firmly adhered to the battery cell, so that the easy-tear sticker is completely firmly adhered to the battery cell. This ensures the safety of the battery cell when it is used in electronic devices.

[0042] In addition, in some embodiments, a color-developing layer 20 is provided on the surface of the easy-tear film layer 10, and a plurality of color-changing elements 30 are provided on the surface of the color-developing layer 20 opposite to the easy-tear film layer 10. Each color-changing element 30 is provided with a first adhesive element 40, which is used to bond the battery cell.

[0043] Since the surface of the easy-tear film layer 10 is provided with a color developing layer 20, and a plurality of color-changing elements 30 are provided on the surface of the color developing layer 20 opposite to the easy-tear film layer 10, and a first adhesive element 40 is provided on each color-changing element 30, when the easy-tear sticker provided in this embodiment is applied to the battery cell, the first adhesive element 40 can be directly adhered to the battery cell. After the easy-tear sticker is adhered to the battery cell, during the process of pressing the easy-tear sticker with rollers to ensure that the easy-tear sticker is firmly adhered to the battery cell, the easy-tear film layer 10 will be subjected to force, causing at least some of the color-changing elements 30 to break. The broken color-changing elements 30 can cause the corresponding position of the color developing layer 20 to change color, thereby determining that the easy-tear sticker is firmly adhered to the battery cell at the position where the color developing layer 20 changes color, while at the position where the color developing layer 20 does not change color, the easy-tear sticker is not firmly adhered to the battery cell. By setting the color-developing layer 20, the color-changing component 30, and the first adhesive component 40, it is easy to stick the easy-tear sticker to the battery cell. When the easy-tear sticker is stuck to the battery cell, it is firmly attached to the battery cell at the color-changing position of the color-developing layer 20, and not firmly attached to the battery cell at the non-color-changing position of the color-developing layer 20. This allows for efficient identification of whether the easy-tear sticker is firmly attached to the battery cell, and force can be applied to the position where the easy-tear sticker is not firmly attached to the battery cell to make the easy-tear sticker fully adhere to the battery cell.

[0044] In addition, in some embodiments, a color-developing layer 20 is provided on the easy-tear film layer 10, and a plurality of color-changing elements 30 are provided between the color-developing layer 20 and the easy-tear film layer 10. A plurality of first adhesive elements 40 are provided on the surface of the color-developing layer 20 away from the easy-tear film layer 10, and one first adhesive element 40 is positioned opposite to one color-changing element 30. The first adhesive element 40 is used to bond the battery cell.

[0045] Since multiple color-changing elements 30 are provided between the color-developing layer 20 and the easy-tear film layer 10, and multiple first adhesive elements 40 are provided on the surface of the color-developing layer 20 away from the easy-tear film layer 10, with one first adhesive element 40 and one color-changing element 30 positioned opposite each other, the easy-tear sticker can be directly adhered to the battery cell through the first adhesive elements 40. Furthermore, during the process of adhering the easy-tear sticker to the battery cell, the roller presses the easy-tear sticker to ensure a firm bond between the easy-tear sticker and the battery cell, thus determining whether the easy-tear sticker is completely and firmly adhered to the battery cell. By setting a color-developing layer 20, a color-changing component 30, and a first adhesive component 40, when the easy-tear sticker is adhered to the battery cell, the easy-tear sticker adheres firmly to the battery cell at the color-changing position of the color-developing layer 20, and does not adhere firmly to the battery cell at the non-color-changing position of the color-developing layer 20. This allows for efficient identification of whether the easy-tear sticker is firmly adhered to the battery cell, and then force can be applied to the position where the easy-tear sticker is not firmly adhered to the battery cell, so that the easy-tear sticker is completely firmly adhered to the battery cell.

[0046] It should be noted that, in this embodiment, after the color-changing component 30 breaks, the substances in the color-changing component 30 can react with the color-developing layer 20, causing the color-developing layer 20 to change color. The specific materials of the color-changing component 30 and the color-developing layer 20 can be selected from existing materials according to actual needs, as long as the color-changing component 30 causes a color change in the color-developing layer 20 after breaking. For example, the color-changing component 30 contains ferric chloride, and the color-developing layer 20 contains phenol; once the ferric chloride comes into contact with the phenol, the phenol will change color. As another example, the color-changing component 30 contains iodine, and the color-developing layer 20 contains starch; once the iodine comes into contact with the starch, the starch will turn blue.

[0047] In addition, in this embodiment, the easy-tear film layer 10 can be a PET film. Of course, the easy-tear film layer 10 can also be other types of film, such as a PC film. The specific type of the easy-tear film layer 10 is not limited in this embodiment.

[0048] Additionally, in some embodiments, such as Figure 2 As shown, the easy-tear film layer 10 has a setting surface, an activation area 11 on the setting surface, and multiple activation points in the activation area 11; the color developing layer 20 is disposed on the activation area 11 and covers the activation area 11; among the multiple color-changing elements 30 on the surface of the color developing layer away from the easy-tear film layer 10, one color-changing element 30 is positioned opposite to one activation point.

[0049] Since one of the multiple color-changing elements 30 on the surface of the color-developing layer opposite to the easy-tear film layer 10 is opposite to an activation point, when the easy-tear film is pasted on the battery cell, the color-changing elements 30 correspond one-to-one with the activation points. This allows it to be determined whether the easy-tear film is firmly bonded to the battery cell at each activation point. Once it is determined that the easy-tear film is not firmly bonded to the battery cell at a certain activation point, force can be applied to the easy-tear film layer 10 at that activation point to ensure that the easy-tear film is firmly bonded to the battery cell at that activation point.

[0050] Additionally, in some embodiments, such as Figure 2 As shown, the easy-tear film layer 10 has a setting surface, an activation area 11 on the setting surface, and multiple activation points in the activation area 11; a color-changing element 30 is set in each activation point, and the color-developing layer 20 covers the activation area 11 and the multiple color-changing elements 30.

[0051] Since a color-changing element 30 is set in each activation point, and the color-developing layer 20 covers the activation area 11 and multiple color-changing elements 30, when the easy-tear film is pasted on the battery cell, it can be determined whether the easy-tear film is firmly adhered to the battery cell at each activation point. Once it is determined that the easy-tear film is not firmly adhered to the battery cell at a certain activation point, force can be applied to the easy-tear film layer 10 at that activation point to ensure that the easy-tear film is firmly adhered to the battery cell at that activation point.

[0052] Additionally, in some embodiments, such as Figure 2 As shown, the surface also has an adhesive area 12, and the adhesive area 12 is provided with a second adhesive member 50. The adhesive strength of the second adhesive member 50 is greater than that of the first adhesive member 40. By providing the second adhesive member 50 in the adhesive area 12, when the easy-tear sticker is adhered to the battery cell, the second adhesive member 50 can firmly adhere to the surface of the battery cell, ensuring that the easy-tear sticker does not easily detach from the battery cell.

[0053] It should be noted that both the first adhesive component 40 and the second adhesive component 50 can be adhesives, and of course, they can also be double-sided adhesives. This application embodiment does not limit this, as long as the adhesive strength of the first adhesive component 40 is greater than the adhesive strength of the second adhesive component 50.

[0054] Additionally, in some embodiments, such as Figure 2 As shown, the easy-tear adhesive label has a first direction X along its surface. The activation area 11 includes a first sub-activation area 111 and a second sub-activation area 112, and the adhesive area 12 includes a first sub-adhesive area 121 and a second sub-adhesive area 122. The first sub-activation area 111 and the second sub-activation area 112 are distributed at intervals along the first direction X. The first sub-adhesive area 121 is located between the first sub-activation area 111 and the second sub-activation area 112. Along the first direction X, the second sub-adhesive area 122 is located on the side of the second sub-activation area 112 away from the first sub-activation area 111. Both the first sub-activation area 111 and the second sub-activation area 112 have activation points, and both the first sub-adhesive area 121 and the second sub-adhesive area 122 are provided with second adhesive members 50.

[0055] With this setup, when the easy-tear sticker is attached to the battery cell, the first sub-adhesive area 121 and the second sub-adhesive area 122 can be adhered to different positions on the battery cell by the second adhesive member 50, ensuring that the easy-tear sticker does not easily detach from the battery cell. The first sub-activation area 111 and the second sub-activation area 112 are verification areas, used to verify whether they have been firmly adhered to the battery cell in that area. In other words, this setup effectively ensures that when the easy-tear sticker is attached to the battery cell, it can be clearly determined whether the verification area of ​​the easy-tear sticker is firmly adhered to the battery cell, and that the easy-tear sticker is firmly adhered to the battery cell in areas other than the verification area.

[0056] Additionally, in some embodiments, such as Figure 2 and Figure 3As shown, the easy-tear adhesive also has a second direction Y along the surface of the easy-tear adhesive, the second direction Y being orthogonal to the first direction X; a plurality of first sub-adhesive areas 121 are arranged sequentially along the second direction Y, some of the first sub-adhesive areas 121 are offset from the remaining first sub-adhesive areas 121 in the first direction X, and a plurality of second adhesive members 50 are provided for the second sub-adhesive area 122, the second adhesive members 50 being arranged sequentially along the second direction Y, and the plurality of second adhesive members 50 covering the second sub-adhesive area 122.

[0057] Because multiple first sub-adhesive areas 121 are arranged sequentially along the second direction Y, and some of the first sub-adhesive areas 121 are misaligned with the rest in the first direction X, the easy-tear sticker can be lifted at the first sub-adhesive area 121 after it is adhered to the battery cell, making it easy to separate the easy-tear sticker from the battery cell at the first sub-adhesive area 121. The second sub-adhesive area 122 is provided with multiple second adhesive elements 50, which ensures that the easy-tear sticker is firmly adhered to the battery cell at the position of the second sub-adhesive area 122.

[0058] Additionally, in some embodiments, such as Figure 4 As shown, the color-changing component 30 includes a housing 31 and a color-changing material 32 disposed within the housing 31. The housing 31 is ruptureable under pressure. When the easy-tear film layer 10 is under pressure, the housing 31 ruptures, allowing the color-changing material 32 to come into contact with the color-developing layer 20, causing the color-developing layer 20 to change color. With this configuration, when the color-changing component 30 needs to be installed, the housing 31 of the color-changing component 30 can be directly placed in the corresponding position, ensuring that the color-changing material 32 covered by the housing 31 is also in the corresponding position. Thus, once the easy-tear film layer 10 is subjected to force, the housing 31 will rupture, allowing the color-changing material 32 to come into contact with the color-developing layer 20, thereby reacting with the color-developing layer 20 and causing the color-developing layer 20 to change color. In other words, by providing the housing 31 and the color-changing material 32, the color-changing component 30 can be easily installed at the desired location, ensuring that the color-changing component 30 can cause the color-developing layer 20 to change color.

[0059] It should be noted that, in the embodiments of this application, when the color-changing element 30 is disposed on the color-developing layer 20, the color-changing element 30 can be attached to the color-developing layer 20 by adhesive; when the color-changing element 30 is disposed on the easy-tear film layer 10, the color-changing element 30 can be attached to the easy-tear film layer 10 by adhesive.

[0060] Additionally, in some embodiments, such as Figure 2As shown, the easy-tear adhesive tape has a first direction X and a second direction Y along its surface, the first direction X and the second direction Y being orthogonal. The easy-tear film layer 10 has a first side 103 extending along the second direction Y; the first side 103 has a first protrusion 1031 protruding from the first side 103 along the first direction X. With this configuration, when the easy-tear adhesive tape is adhered to the battery cell, and when it is necessary to separate the easy-tear adhesive tape from the battery cell, the operator can directly grasp the first protrusion 1031, thereby applying force to other parts of the easy-tear adhesive tape through the first protrusion 1031, thus separating the easy-tear adhesive tape from the battery cell. That is, by setting the first protrusion 1031, it is equivalent to setting a lifting part on the easy-tear adhesive tape that is easy to grasp, thereby facilitating the separation of the easy-tear adhesive tape from the battery cell.

[0061] Additionally, in some embodiments, such as Figure 2 As shown, the easy-tear adhesive also has a second side 104, which is opposite to the first side 103 in the first direction X. The second side 104 has a second protrusion 1041, which protrudes from the second side 104 along the first direction X. With this configuration, when the easy-tear adhesive is attached to the battery cell, the operator can directly hold the second protrusion 1041 to apply force to other parts of the easy-tear adhesive, thus separating the easy-tear adhesive from the battery cell. That is, by providing the second protrusion 1041, it is equivalent to providing a lifting part on the easy-tear adhesive that is easy to hold, thereby facilitating the separation of the easy-tear adhesive from the battery cell.

[0062] Additionally, in some embodiments, such as Figure 1 As shown, the thickness of the easy-tear sticker is L mm, satisfying the condition: 0.03 ≤ L ≤ 0.3. This setting ensures that the thickness of the easy-tear sticker is moderate, resulting in a minimal increase in the size of the battery cell after the sticker is adhered to it. This, in turn, ensures that the battery size remains small after the cell is installed in the battery.

[0063] It should be noted that when multiple color-changing elements 30 are provided on the surface of the color-developing layer 20 away from the easy-tear film layer 10, and each color-changing element 30 is provided with a first adhesive element 40, the thickness of the easy-tear sticker is: the distance between the surface of the first adhesive element 40 away from the color-changing element 30 and the surface of the easy-tear film layer 10 away from the color-developing layer 20; when multiple color-changing elements 30 are provided between the color-developing layer 20 and the easy-tear film layer 10, and multiple first adhesive elements 40 are provided on the surface of the color-developing layer 20 away from the easy-tear film layer 10, the thickness of the easy-tear sticker is: the distance between the surface of the first adhesive element 40 away from the color-developing layer 20 and the surface of the easy-tear film layer 10 away from the color-changing element 30.

[0064] Furthermore, in this embodiment, the thickness of the easy-tear adhesive can be any value from 0.03mm to 0.3mm. For example, the thickness of the easy-tear adhesive is 0.03mm, 0.08mm, 0.1mm, or 0.3mm. This embodiment does not limit the thickness in this regard.

[0065] In this embodiment, since a color-developing layer 20 is provided on the easy-tear film layer 10, and multiple color-changing elements 30 are connected to the color-developing layer 20, when the easy-tear sticker provided in this embodiment is applied to the battery cell, it can be directly applied to the battery cell. After the easy-tear sticker is adhered to the battery cell, the easy-tear film layer 10 will be subjected to force during the process of pressing the easy-tear sticker with the battery cell by rollers to ensure that the easy-tear sticker is firmly adhered to the battery cell. This causes at least some of the color-changing elements 30 to break. The broken color-changing elements 30 can cause the corresponding position of the color-developing layer 20 to change color. Thus, it can be determined that the easy-tear sticker is firmly adhered to the battery cell at the position where the color-developing layer 20 changes color, while at the position where the color-developing layer 20 does not change color, the easy-tear sticker is not firmly adhered to the battery cell. In other words, in this embodiment of the application, by setting a color-developing layer 20 and a color-changing element 30, when the easy-tear sticker is adhered to the battery cell, the easy-tear sticker is firmly adhered to the battery cell at the color-changing position of the color-developing layer 20, and not firmly adhered to the battery cell at the non-color-changing position of the color-developing layer 20. This allows for efficient identification of whether the easy-tear sticker is firmly adhered to the battery cell, and then force can be applied to the position where the easy-tear sticker is not firmly adhered to the battery cell, so that the easy-tear sticker is completely firmly adhered to the battery cell. This ensures the safety of the battery cell when it is used in electronic devices.

[0066] This application provides a battery, which includes a battery cell and an easy-tear film as described in any of the above embodiments; the easy-tear film layer is attached to the battery cell by a first adhesive.

[0067] This application provides a terminal device, which includes the battery described in the above embodiments.

[0068] It should be noted that, in the embodiments of this application, the terminal device includes, but is not limited to, controllers, smart devices, terminal products, etc., wherein smart devices include, for example, smartphones, smart TVs, smart speakers, smart robots, VR devices, AR devices, XR devices, etc., and terminal products include personal computers, tablet computers, etc.

[0069] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0070] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An easy-tear adhesive label, characterized in that, The easy-tear adhesive includes: Easy-tear film layer (10), on which a color developing layer (20) is provided, and the color developing layer (20) is provided with a plurality of color-changing elements (30); When the easy-tear film layer (10) is subjected to pressure, at least part of the color-changing element (30) breaks, so that the color-developing layer (20) changes color at the position corresponding to the broken color-changing element (30).

2. The easy-tear adhesive label according to claim 1, characterized in that, The surface of the easy-tear film layer (10) is provided with a color-developing layer (20). The surface of the color-developing layer (20) facing away from the easy-tear film layer (10) is provided with a plurality of color-changing elements (30). Each color-changing element (30) is provided with a first adhesive element (40), which is used to bond the battery cell.

3. The easy-tear adhesive label according to claim 1, characterized in that, A color-developing layer (20) is provided on the easy-tear film layer (10). A plurality of color-changing elements (30) are provided between the color-developing layer (20) and the easy-tear film layer (10). A plurality of first adhesive elements (40) are provided on the surface of the color-developing layer (20) away from the easy-tear film layer (10). One first adhesive element (40) is positioned opposite to one color-changing element (30). The first adhesive element (40) is used to bond the battery cell.

4. The easy-tear adhesive label according to claim 2, characterized in that, The easy-tear film layer (10) has a setting surface, the setting surface has an activation area (11), and the activation area (11) has multiple activation points; The color-developing layer (20) is disposed on the activation area (11) and covers the activation area (11). Among the multiple color-changing elements (30) on the surface of the color-developing layer (20) away from the easy-tear film layer (10), one color-changing element (30) is positioned opposite to one of the activation points.

5. The easy-tear adhesive label according to claim 3, characterized in that, The easy-tear film layer (10) has a setting surface, the setting surface has an activation area (11), and the activation area (11) has multiple activation points; One color-changing element (30) is provided in one of the activation points, and the color-developing layer (20) covers the activation area (11) and multiple color-changing elements (30).

6. The easy-tear adhesive label according to claim 4 or 5, characterized in that, The mounting surface also has an adhesive area (12), and the adhesive area (12) is provided with a second adhesive element (50), the adhesive strength of the second adhesive element (50) being greater than the adhesive strength of the first adhesive element (40).

7. The easy-tear adhesive label according to claim 6, characterized in that, The easy-tear adhesive has a first direction (X) along its surface, the activation area (11) includes a first sub-activation area (111) and a second sub-activation area (112), and the adhesive area (12) includes a first sub-adhesive area (121) and a second sub-adhesive area (122). The first sub-activation region (111) and the second sub-activation region (112) are distributed at intervals along the first direction (X), the first sub-adhesion region (121) is located between the first sub-activation region (111) and the second sub-activation region (112), and along the first direction (X), the second sub-adhesion region (122) is located on the side of the second sub-activation region (112) away from the first sub-activation region (111); Both the first sub-activation area (111) and the second sub-activation area (112) have the activation point, and both the first sub-adhesive area (121) and the second sub-adhesive area (122) are provided with the second adhesive (50).

8. The easy-tear adhesive label according to claim 7, characterized in that, The easy-tear adhesive also has a second direction (Y) along the surface of the easy-tear adhesive, the second direction (Y) being orthogonal to the first direction (X); Multiple first sub-adhesive areas (121) are arranged sequentially along the second direction (Y). Some of the first sub-adhesive areas (121) are misaligned with the remaining first sub-adhesive areas (121) in the first direction (X). The second sub-adhesive area (122) is provided with multiple second adhesive members (50). The second adhesive members (50) are arranged sequentially along the second direction (Y). The multiple second adhesive members (50) cover the second sub-adhesive area (122).

9. The easy-tear adhesive label according to claim 1, characterized in that, The color-changing component (30) includes a housing (31) and a color-changing material (32) disposed in the housing (31), and the housing (31) is ruptureable under pressure; When the easy-tear film layer (10) is subjected to pressure, the housing (31) breaks, so that the color-changing material (32) comes into contact with the color-developing layer (20), causing the color-developing layer (20) to change color.

10. The easy-tear adhesive label according to claim 1, characterized in that, The easy-tear adhesive has a first direction (X) and a second direction (Y) along the surface of the easy-tear adhesive, the first direction (X) and the second direction (Y) are orthogonal, and the easy-tear film layer (10) has a first side (103) that extends along the second direction (Y); The first side (103) has a first protrusion (1031) that protrudes from the first side (103) along the first direction (X).

11. The easy-tear adhesive label according to claim 10, characterized in that, The easy-tear adhesive also has a second side (104), which is opposite to the first side (103) in the first direction (X); The second side (104) has a second protrusion (1041) that protrudes from the second side (104) along the first direction (X).

12. The easy-tear adhesive label according to claim 1, characterized in that, The thickness of the easy-tear adhesive is L mm, satisfying: 0.03 ≤ L ≤ 0.

3.

13. A battery, characterized in that, The battery includes a battery cell and an easy-tear sticker as described in any one of claims 1-12; The easy-tear film layer (10) is attached to the battery cell by the first adhesive (40).

14. A terminal device, characterized in that, The terminal device includes the battery as described in claim 13.

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