CN220564519U - Double-sided adhesive tape for testing composite current collector - Google Patents
Double-sided adhesive tape for testing composite current collector Download PDFInfo
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- CN220564519U CN220564519U CN202322165759.2U CN202322165759U CN220564519U CN 220564519 U CN220564519 U CN 220564519U CN 202322165759 U CN202322165759 U CN 202322165759U CN 220564519 U CN220564519 U CN 220564519U
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- 238000012360 testing method Methods 0.000 title claims abstract description 37
- 239000002131 composite material Substances 0.000 title claims abstract description 36
- 239000002390 adhesive tape Substances 0.000 title claims abstract description 12
- 239000010410 layer Substances 0.000 claims abstract description 63
- 229910052751 metal Inorganic materials 0.000 claims abstract description 55
- 239000002184 metal Substances 0.000 claims abstract description 55
- 239000012790 adhesive layer Substances 0.000 claims abstract description 35
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000010949 copper Substances 0.000 claims abstract description 7
- 229910052802 copper Inorganic materials 0.000 claims abstract description 7
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims abstract description 5
- 230000003746 surface roughness Effects 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims 3
- 238000007719 peel strength test Methods 0.000 abstract description 10
- 230000005489 elastic deformation Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 description 10
- 230000001070 adhesive effect Effects 0.000 description 10
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 229920006254 polymer film Polymers 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 239000011149 active material Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000007655 standard test method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Adhesive Tapes (AREA)
Abstract
本实用新型的目的在于揭示一种复合集流体测试用双面胶带，包括柔性金属基底层及粘结于所述柔性金属基底层表面的双面胶层；所述双面胶层包括第一粘结面和第二粘结面，所述第一粘结面粘结所述柔性金属基底层，所述第二粘结面为剥离强度测试面，所述柔性金属基底层厚度为10μm‑200μm，本实用新型技术效果如下：柔性金属基底层选用不锈软钢层、铜带或铝带，柔性金属基底层和双面胶层粘结为一个整体，鉴于柔性金属基底层具有与双面胶层相当的柔性，同时因柔性金属基底层在拉伸时弹性形变很小或可忽略，能够防止双面胶层被拉伸，采用本实用新型的双面胶带进行剥离强度测试时，双面胶带不会因拉伸而发生弹性形变，剥离强度测试结果更加准确。
The purpose of this utility model is to disclose a double-sided adhesive tape for composite current collector testing, which includes a flexible metal base layer and a double-sided adhesive layer bonded to the surface of the flexible metal base layer; the double-sided adhesive layer includes a first adhesive layer. A bonding surface and a second bonding surface, the first bonding surface is bonded to the flexible metal base layer, the second bonding surface is a peel strength test surface, and the thickness of the flexible metal base layer is 10 μm-200 μm, The technical effects of this utility model are as follows: the flexible metal base layer is made of stainless mild steel, copper strips or aluminum strips, and the flexible metal base layer and the double-sided adhesive layer are bonded as a whole. It is quite flexible. At the same time, because the elastic deformation of the flexible metal base layer is very small or negligible when stretched, it can prevent the double-sided adhesive layer from being stretched. When the double-sided adhesive tape of the present invention is used for peeling strength testing, the double-sided adhesive tape does not Elastic deformation will occur due to stretching, and the peel strength test results will be more accurate.
Description
技术领域Technical field
本实用新型涉及复合集流体测试技术领域，特别是一种复合集流体测试用双面胶带。The utility model relates to the technical field of composite current collector testing, in particular to a double-sided tape for composite current collector testing.
背景技术Background technique
复合集流体是一种“AB或ABA型”金属化高分子薄膜、高分子膜单面或双面沉积金属层，主要作用是导电、汇集电池活性物质产生的电流，电池正负极都需要集流体。The composite current collector is an "AB or ABA type" metallized polymer film, with a metal layer deposited on one or both sides of the polymer film. Its main function is to conduct electricity and collect the current generated by the active material of the battery. Both the positive and negative electrodes of the battery need to be collected. fluid.
目前，复合集流体主要采用镀铝复合膜或者镀铜复合膜，基底为高分子薄膜材料，镀层为铜、铝等金属材料。在实际应用中，复合集流体通常采用真空蒸发、磁控溅射、水镀等方工艺，在高分子膜上沉积1μm左右铜或铝层。At present, composite current collectors mainly use aluminum-plated composite films or copper-plated composite films. The base is a polymer film material, and the coating is made of metal materials such as copper and aluminum. In practical applications, composite current collectors usually use vacuum evaporation, magnetron sputtering, water plating and other processes to deposit a copper or aluminum layer of about 1 μm on the polymer film.
复合集流体的镀层剥离强度尚无标准的测试方法，复合集流体剥离强度的测试检验方法亟待规范统一，目前通用的检测方法采用胶带进行粘结测试，查看镀层是否被剥离，但无量化的剥离强度数据予以表征。在用剥离强度试验仪器测试剥离强度时，目前的双面胶带存在弹性变形问题，影响了剥离强度测试结果的准确性。There is no standard test method for the peel strength of the coating of composite current collectors. The testing and inspection methods for the peel strength of composite current collectors need to be standardized and unified. The current common detection method uses tape for bonding testing to check whether the coating is peeled off, but there is no quantitative peeling. Intensity data are represented. When testing the peel strength with a peel strength test instrument, the current double-sided tape has elastic deformation problems, which affects the accuracy of the peel strength test results.
鉴于此，亟需开发一种复合集流体测试用双面胶带，以规范集流体剥离强度检测方法。In view of this, there is an urgent need to develop a double-sided tape for composite current collector testing to standardize the current collector peel strength detection method.
发明内容Contents of the invention
为解决上述技术问题，本实用新型的目的在于揭示一种复合集流体测试用双面胶带，通过双面胶层的第一粘结面紧紧地粘结于柔性金属基底层，使柔性金属基底层和双面胶层粘结为一体，从而减少双面胶层的弹性变形，保障剥离强度测试数据的准确性。In order to solve the above technical problems, the purpose of this utility model is to disclose a double-sided adhesive tape for composite current collector testing, which is tightly bonded to the flexible metal base layer through the first bonding surface of the double-sided adhesive layer, so that the flexible metal base layer The bottom layer and the double-sided adhesive layer are bonded together to reduce the elastic deformation of the double-sided adhesive layer and ensure the accuracy of the peel strength test data.
为实现上述发明目的，本实用新型提供了一种复合集流体测试用双面胶带，包括柔性金属基底层及粘结于所述柔性金属基底层表面的双面胶层；In order to achieve the above-mentioned object of the invention, the present invention provides a double-sided adhesive tape for composite current collector testing, which includes a flexible metal base layer and a double-sided adhesive layer bonded to the surface of the flexible metal base layer;
所述双面胶层包括第一粘结面和第二粘结面，所述第一粘结面粘结所述柔性金属基底层，所述第二粘结面为剥离强度测试面。The double-sided adhesive layer includes a first adhesive surface and a second adhesive surface, the first adhesive surface bonds to the flexible metal base layer, and the second adhesive surface is a peel strength test surface.
优选地，所述柔性金属基底层厚度为10μm-200μm。Preferably, the thickness of the flexible metal base layer is 10 μm-200 μm.
优选地，所述柔性金属基底层厚度为50μm-100μm。Preferably, the thickness of the flexible metal base layer is 50 μm-100 μm.
优选地，所述柔性金属基底层为不锈软钢层、铜带或铝带。Preferably, the flexible metal base layer is a stainless mild steel layer, copper strip or aluminum strip.
优选地，所述双面胶层尺寸为(1cm-4cm)*(6cm-8cm)。Preferably, the size of the double-sided adhesive layer is (1cm-4cm)*(6cm-8cm).
优选地，所述双面胶层尺寸为1cm*7cm。Preferably, the size of the double-sided adhesive layer is 1cm*7cm.
优选地，所述柔性金属基底层与所述双面胶层的宽度相等，所述柔性金属基底层长度至少比双面胶层长度大1cm。Preferably, the width of the flexible metal base layer is equal to that of the double-sided adhesive layer, and the length of the flexible metal base layer is at least 1 cm greater than the length of the double-sided adhesive layer.
优选地，所述柔性金属基底层尺寸为1cm*8cm。Preferably, the size of the flexible metal base layer is 1cm*8cm.
优选地，所述柔性金属基底层表面粗糙度为1μm-2μm。Preferably, the surface roughness of the flexible metal base layer is 1 μm-2 μm.
优选地，所述柔性金属基底层表面粗糙度为1.5μm。Preferably, the surface roughness of the flexible metal base layer is 1.5 μm.
与现有技术相比，本实用新型技术效果如下：Compared with the existing technology, the technical effects of this utility model are as follows:
柔性金属基底层选用不锈软钢层、铜带或铝带，柔性金属基底层和双面胶层粘结为一个整体，鉴于柔性金属基底层具有与双面胶层相当的柔性，同时因柔性金属基底层在拉伸时弹性形变很小或可忽略，能够防止双面胶层被拉伸，采用本实用新型的双面胶带进行剥离强度测试时，双面胶带不会因拉伸而发生弹性形变，剥离强度测试结果更加准确。The flexible metal base layer is made of stainless mild steel layer, copper strip or aluminum strip. The flexible metal base layer and the double-sided adhesive layer are bonded as a whole. In view of the fact that the flexible metal base layer has the same flexibility as the double-sided adhesive layer, and because of its flexibility The elastic deformation of the metal base layer is very small or negligible when stretched, which can prevent the double-sided adhesive layer from being stretched. When the double-sided adhesive tape of the present invention is used for peeling strength testing, the double-sided adhesive tape will not become elastic due to stretching. Deformation and peel strength test results are more accurate.
附图说明Description of drawings
为了更清楚地说明本实用新型具体实施方式或现有技术中的技术方案，下面将对具体实施方式或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本实用新型的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly explain the specific embodiments of the present invention or the technical solutions in the prior art, the drawings that need to be used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description The accompanying drawings illustrate some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.
图1是本实用新型双面胶带剖视示意图。Figure 1 is a schematic cross-sectional view of the double-sided tape of the present invention.
图2是本实用新型90°剥离试验机立体结构图。Figure 2 is a three-dimensional structural view of the 90° peel testing machine of the present utility model.
其中，1、柔性金属基底层；2、双面胶层；21、第一粘结面；22、第二粘结面；3、驱动部；4、测试台；41、第一固定板；42、第二固定板；5、45°丝杆组件；51、丝杆；52、第一导杆；53、第二导杆；6、连接块；7、力传感器；8、竖直固定杆；9、夹头。Among them, 1. Flexible metal base layer; 2. Double-sided adhesive layer; 21. First bonding surface; 22. Second bonding surface; 3. Driving part; 4. Test bench; 41. First fixed plate; 42 , second fixed plate; 5. 45° screw assembly; 51. screw; 52. first guide rod; 53. second guide rod; 6. connecting block; 7. force sensor; 8. vertical fixed rod; 9. Chuck.
具体实施方式Detailed ways
下面结合附图所示的各实施方式对本实用新型进行详细说明，但应当说明的是，这些实施方式并非对本实用新型的限制，本领域普通技术人员根据这些实施方式所作的功能、方法、或者结构上的等效变换或替代，均属于本实用新型的保护范围之内。The present utility model will be described in detail below with reference to the various embodiments shown in the accompanying drawings. However, it should be noted that these embodiments do not limit the present utility model. Those of ordinary skill in the art can make functions, methods, or structures based on these embodiments. Equivalent transformations or substitutions on the above are all within the protection scope of the present utility model.
在本实用新型的描述中，需要理解的是，术语"中心"、"纵向"、"横向"、"长度"、"宽度"、"厚度"、"上"、"下"、"前"、"后"、"左"、"右"、"竖直"、"水平"、"顶"、"底"、"内"、"外"、"顺时针"、"逆时针"等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本实用新型和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本实用新型的限制。In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", The directions indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" etc. Or the positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and operation, therefore it cannot be construed as a limitation of the present invention.
实施例1Example 1
参图1所示，本实施例揭示了一种复合集流体测试用双面胶带的一种具体实施方式。Referring to Figure 1, this embodiment discloses a specific implementation of a double-sided tape for composite current collector testing.
复合集流体测试用双面胶带，参图1所示，包括柔性金属基底层1及粘结于所述柔性金属基底层1表面的双面胶层2；所述双面胶层2包括第一粘结面21和第二粘结面22，所述第一粘结面21粘结所述柔性金属基底层1，所述第二粘结面22为剥离强度测试面。Double-sided tape for composite current collector testing, as shown in Figure 1, includes a flexible metal base layer 1 and a double-sided adhesive layer 2 bonded to the surface of the flexible metal base layer 1; the double-sided adhesive layer 2 includes a first Adhesive surface 21 and second adhesive surface 22, the first adhesive surface 21 adheres to the flexible metal base layer 1, and the second adhesive surface 22 is a peel strength test surface.
具体地，复合集流体包括高分子薄膜层和镀层，在采用90°剥离试验机测试复合集流体的剥离强度时，首先将预定尺寸的复合集流体固定于测试台并暴露出(1cm-4cm)*(6cm-8cm)尺寸的条形复合集流体，使镀层外露，将本实施例的双面胶带的第二粘结面用力粘结于暴露的条形复合集流体表面，再通过90°剥离试验机的夹头夹住双面胶带的一端，启动90°剥离试验机后，以一定的速度剥离双面胶带，并记录剥离双面胶带的最小载荷力，从而计算出剥离强度，如当剥离强度≥8N/cm时，双面胶带仍然无法剥离复合集流体表面的镀层时，则复合集流体的剥离强度性能达标。Specifically, the composite current collector includes a polymer film layer and a coating. When testing the peel strength of the composite current collector using a 90° peel tester, first fix the composite current collector of a predetermined size on the test bench and expose it (1cm-4cm) * (6cm-8cm) size strip-shaped composite current collector, so that the coating is exposed, the second adhesive surface of the double-sided tape of this embodiment is strongly bonded to the exposed strip-shaped composite current collector surface, and then peeled off at 90° The chuck of the testing machine clamps one end of the double-sided tape. After starting the 90° peeling tester, peel off the double-sided tape at a certain speed and record the minimum load force for peeling off the double-sided tape to calculate the peeling strength. For example, when peeling off When the strength is ≥8N/cm, and the double-sided tape still cannot peel off the coating on the surface of the composite current collector, the peel strength performance of the composite current collector reaches the standard.
90°剥离试验机的原理参见CN204008421 U，具体参见图2，90°剥离试验机，包括驱动部3、测试台4、45°丝杆组件5、连接块6、力传感器7、竖直固定杆8及夹头9；其中驱动部3是45°丝杆组件5的动力输出部，45°丝杆组件5设置丝杆51及设置于丝杆51两侧的第一导杆52和第二导杆53，连接块6沿所述45°丝杆组件5移动，即连接块6沿丝杆51、第一导杆52和第二导杆53移动，丝杆51的转动驱动连接块6斜上方45°移动。所述力传感器7设置于所述连接块6，所述力传感器7连接所述竖直固定杆8，所述夹头9设置于所述竖直固定杆8的底部，夹头9夹持柔性金属基底层1的端部，当丝杆51转动时，驱动连接块6斜上方45°移动，进而带动保持垂直状态的竖直固定杆8和夹头9斜上方45°移动，实现以90°姿态剥离双面胶带，通过力传感器7反应剥离力并通过显示屏展示出来，通过计算得出剥离强度。The principle of the 90° peeling test machine can be found in CN204008421 U. For details, see Figure 2. The 90° peeling testing machine includes a driving part 3, a test bench 4, a 45° screw assembly 5, a connecting block 6, a force sensor 7, and a vertical fixed rod. 8 and chuck 9; the driving part 3 is the power output part of the 45° screw assembly 5. The 45° screw assembly 5 is provided with a screw 51 and a first guide rod 52 and a second guide rod disposed on both sides of the screw 51. Rod 53, the connecting block 6 moves along the 45° screw assembly 5, that is, the connecting block 6 moves along the screw 51, the first guide rod 52 and the second guide rod 53, and the rotation of the screw 51 drives the connecting block 6 obliquely upward. 45° movement. The force sensor 7 is arranged on the connecting block 6, and the force sensor 7 is connected to the vertical fixing rod 8. The clamp 9 is arranged on the bottom of the vertical fixing rod 8. The clamp 9 clamps the flexible At the end of the metal base layer 1, when the screw rod 51 rotates, the connecting block 6 is driven to move obliquely upward at 45°, which in turn drives the vertical fixed rod 8 and the chuck 9 that remain vertical to move obliquely upward at 45°, achieving a 90° angle. The double-sided tape is peeled off with a gesture, and the peeling force is reflected by the force sensor 7 and displayed on the display screen, and the peeling strength is calculated.
在测试时，所述测试台4设置第一固定板41和第二固定板42，第一固定板41和第二固定板42分别将复合集流体1的两侧压紧于测试台4，使一定宽度的复合集流体暴露，暴露面为待测试面。本实施例的柔性金属基底层1选用不锈软钢层、铜带或铝带，柔性金属基底层1和双面胶层2粘结为一个整体，鉴于柔性金属基底层1具有与双面胶层2相当的柔性，同时因柔性金属基底层1在拉伸时弹性形变很小或可忽略，能够防止双面胶层被拉伸，采用本实施例的双面胶带进行剥离强度测试时，双面胶带不会因拉伸而发生弹性形变，剥离强度测试结果更加准确。During testing, the test bench 4 is provided with a first fixing plate 41 and a second fixing plate 42. The first fixing plate 41 and the second fixing plate 42 respectively press both sides of the composite current collector 1 against the test bench 4 so that A certain width of the composite current collector is exposed, and the exposed surface is the surface to be tested. The flexible metal base layer 1 of this embodiment is made of stainless mild steel layer, copper strip or aluminum strip. The flexible metal base layer 1 and the double-sided adhesive layer 2 are bonded as a whole. In view of the flexible metal base layer 1 and the double-sided adhesive tape Layer 2 is quite flexible. At the same time, because the elastic deformation of the flexible metal base layer 1 is very small or negligible when stretched, it can prevent the double-sided adhesive layer from being stretched. When the double-sided adhesive tape of this embodiment is used for a peel strength test, the double-sided adhesive tape has The masking tape will not undergo elastic deformation due to stretching, and the peel strength test results are more accurate.
为保障柔性金属基底层1的柔软度及剥离时容易弯曲，所述柔性金属基底层1厚度为10μm-200μm，柔性金属基底层1厚度优选50μm-100μm；为保障柔性金属基底层1和双面胶层2之间的粘合力，所述柔性金属基底层1表面粗糙度为1μm-2μm，所述柔性金属基底层表面粗糙度优选1.5μm。In order to ensure the softness of the flexible metal base layer 1 and easy bending when peeled off, the thickness of the flexible metal base layer 1 is 10 μm-200 μm, and the thickness of the flexible metal base layer 1 is preferably 50 μm-100 μm; in order to ensure the flexibility of the flexible metal base layer 1 and the double-sided The adhesive force between the adhesive layers 2, the surface roughness of the flexible metal base layer 1 is 1 μm-2 μm, and the surface roughness of the flexible metal base layer is preferably 1.5 μm.
为了适应90°剥离试验机，所述双面胶层2尺寸为(1cm-4cm)*(6cm-8cm)，所述双面胶层优选尺寸为1cm*7cm。双面胶层尺寸为1cm*7cm情况下，暴露的复合集流体的尺寸同样为1cm*7cm，在90°剥离试验机的夹头夹持双面胶带的一端时，为防止夹头夹持双面胶层2，所述柔性金属基底层1与所述双面胶层2的宽度相等，所述柔性金属基底层1长度至少比双面胶层2长度大1cm，如柔性金属基底层尺寸为1cm*8cm，实现夹头仅夹持柔性金属基底层1，而不会夹持双面胶层2。In order to adapt to the 90° peel tester, the size of the double-sided adhesive layer 2 is (1cm-4cm)*(6cm-8cm), and the preferred size of the double-sided adhesive layer is 1cm*7cm. When the size of the double-sided tape is 1cm*7cm, the size of the exposed composite current collector is also 1cm*7cm. When the chuck of the 90° peel testing machine clamps one end of the double-sided tape, in order to prevent the chuck from clamping the double-sided tape, Surface adhesive layer 2, the width of the flexible metal base layer 1 and the double-sided adhesive layer 2 are equal, and the length of the flexible metal base layer 1 is at least 1 cm longer than the length of the double-sided adhesive layer 2. For example, the size of the flexible metal base layer is 1cm*8cm, the chuck only clamps the flexible metal base layer 1 and does not clamp the double-sided adhesive layer 2.
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