CN220564519U - Double-sided adhesive tape for testing composite current collector - Google Patents
Double-sided adhesive tape for testing composite current collector Download PDFInfo
- Publication number
- 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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- CN
- China
- Prior art keywords
- double
- flexible metal
- sided adhesive
- layer
- metal substrate
- Prior art date
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- 238000012360 testing method Methods 0.000 title claims abstract description 39
- 239000002131 composite material Substances 0.000 title claims abstract description 35
- 239000002390 adhesive tape Substances 0.000 title claims abstract description 24
- 239000010410 layer Substances 0.000 claims abstract description 65
- 229910052751 metal Inorganic materials 0.000 claims abstract description 56
- 239000002184 metal Substances 0.000 claims abstract description 56
- 239000000758 substrate Substances 0.000 claims abstract description 37
- 239000012790 adhesive layer Substances 0.000 claims abstract description 34
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000010949 copper Substances 0.000 claims abstract description 8
- 229910052802 copper Inorganic materials 0.000 claims abstract description 8
- 230000003746 surface roughness Effects 0.000 claims description 6
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 2
- 230000005489 elastic deformation Effects 0.000 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000007747 plating Methods 0.000 description 6
- 229920006254 polymer film Polymers 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000007719 peel strength test Methods 0.000 description 3
- 239000013543 active substance Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000012812 general test Methods 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000010998 test method 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
-
- 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
The utility model aims to disclose a double-sided adhesive tape for testing a composite current collector, which comprises a flexible metal substrate layer and a double-sided adhesive layer adhered to the surface of the flexible metal substrate layer; the double-sided adhesive layer comprises a first bonding surface and a second bonding surface, wherein the first bonding surface is used for bonding the flexible metal substrate layer, the second bonding surface is a peeling strength test surface, and the thickness of the flexible metal substrate layer is 10-200 mu m, and the technical effects of the utility model are as follows: the flexible metal substrate layer is made of a stainless soft steel layer, a copper strip or an aluminum strip, the flexible metal substrate layer and the double-sided adhesive layer are bonded into a whole, the flexible metal substrate layer has flexibility equivalent to that of the double-sided adhesive layer, meanwhile, the double-sided adhesive layer can be prevented from being stretched due to small or negligible elastic deformation of the flexible metal substrate layer during stretching, when the double-sided adhesive tape is used for peeling strength test, the double-sided adhesive tape cannot be deformed elastically due to stretching, and the peeling strength test result is more accurate.
Description
Technical Field
The utility model relates to the technical field of composite current collector testing, in particular to a double-sided adhesive tape for composite current collector testing.
Background
The composite current collector is an AB or ABA type metallized polymer film, and a metal layer is deposited on one side or both sides of the polymer film, and is mainly used for conducting and collecting current generated by active substances of a battery, and the current collector is required for the positive electrode and the negative electrode of the battery.
At present, the composite current collector mainly adopts an aluminum plating composite film or a copper plating composite film, the substrate is a high polymer film material, and the plating layer is a metal material such as copper, aluminum and the like. In practical application, the composite current collector is usually deposited with copper or aluminum layers of about 1 μm on a polymer film by vacuum evaporation, magnetron sputtering, water plating and other square processes.
The test method of the composite current collector peel strength is urgent to be unified, and the current general test method adopts adhesive tape to carry out bonding test to check whether the coating is peeled or not, but no quantitative peel strength data is used for characterization. When the peeling strength is tested by using a peeling strength tester, the existing double-sided adhesive tape has the problem of elastic deformation, and the accuracy of the peeling strength test result is affected.
In view of this, there is a need to develop a double-sided tape for testing composite current collectors to normalize the current collector peel strength detection method.
Disclosure of Invention
In order to solve the technical problems, the utility model aims to disclose a double-sided adhesive tape for testing a composite current collector, which is tightly adhered to a flexible metal substrate layer through a first adhesive surface of a double-sided adhesive layer, so that the flexible metal substrate layer and the double-sided adhesive layer are adhered into a whole, thereby reducing the elastic deformation of the double-sided adhesive layer and ensuring the accuracy of peel strength test data.
In order to achieve the above-mentioned purpose, the utility model provides a double-sided tape for testing a composite current collector, which comprises a flexible metal substrate layer and a double-sided adhesive layer adhered to the surface of the flexible metal substrate layer;
the double-sided adhesive layer comprises a first bonding surface and a second bonding surface, wherein the first bonding surface is used for bonding the flexible metal substrate layer, and the second bonding surface is a peeling strength testing surface.
Preferably, the flexible metal base layer has a thickness of 10 μm to 200 μm.
Preferably, the flexible metal base layer has a thickness of 50 μm to 100 μm.
Preferably, the flexible metal base layer is a stainless mild steel layer, a copper strip or an aluminum strip.
Preferably, the size of the double-sided adhesive layer is (1 cm-4 cm) ×6cm-8 cm.
Preferably, the size of the double-sided adhesive layer is 1cm x 7cm.
Preferably, the width of the flexible metal substrate layer is equal to that of the double-sided adhesive layer, and the length of the flexible metal substrate layer is at least 1cm greater than that of the double-sided adhesive layer.
Preferably, the flexible metal base layer is 1cm x 8cm in size.
Preferably, the flexible metal base layer has a surface roughness of 1 μm to 2 μm.
Preferably, the flexible metal base layer has a surface roughness of 1.5 μm.
Compared with the prior art, the utility model has the following technical effects:
the flexible metal substrate layer is made of a stainless soft steel layer, a copper strip or an aluminum strip, the flexible metal substrate layer and the double-sided adhesive layer are bonded into a whole, the flexible metal substrate layer has flexibility equivalent to that of the double-sided adhesive layer, meanwhile, the double-sided adhesive layer can be prevented from being stretched due to small or negligible elastic deformation of the flexible metal substrate layer during stretching, when the double-sided adhesive tape is used for peeling strength test, the double-sided adhesive tape cannot be deformed elastically due to stretching, and the peeling strength test result is more accurate.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of a double-sided tape of the present utility model.
FIG. 2 is a perspective view of a 90 peel tester according to the present utility model.
Wherein, 1, a flexible metal basal layer; 2. a double-sided adhesive layer; 21. a first bonding surface; 22. a second bonding surface; 3. a driving section; 4. a test bench; 41. a first fixing plate; 42. a second fixing plate; 5. 45-degree screw rod assembly; 51. a screw rod; 52. a first guide bar; 53. a second guide bar; 6. a connecting block; 7. a force sensor; 8. a vertical fixing rod; 9. a chuck.
Detailed Description
The present utility model will be described in detail below with reference to the embodiments shown in the drawings, but it should be understood that the embodiments are not limited to the present utility model, and functional, method, or structural equivalents and alternatives according to the embodiments are within the scope of protection of the present utility model by those skilled in the art.
In the description of the present utility model, 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", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Example 1
Referring to fig. 1, this example discloses one embodiment of a double-sided tape for testing a composite current collector.
The double-sided adhesive tape for testing the composite current collector comprises a flexible metal substrate layer 1 and a double-sided adhesive layer 2 bonded on the surface of the flexible metal substrate layer 1, as shown in FIG. 1; the double-sided adhesive layer 2 comprises a first bonding surface 21 and a second bonding surface 22, wherein the first bonding surface 21 is bonded with the flexible metal base layer 1, and the second bonding surface 22 is a peeling strength test surface.
Specifically, when the peeling strength of the composite current collector is tested by adopting a 90-degree peeling tester, firstly, the composite current collector with a preset size is fixed on a test bench, the strip-shaped composite current collector with the size of (1 cm-4 cm) and the size of (6 cm-8 cm) is exposed, the plating layer is exposed, the second bonding surface of the double-sided adhesive tape of the embodiment is bonded on the surface of the exposed strip-shaped composite current collector by force, one end of the double-sided adhesive tape is clamped by a chuck of the 90-degree peeling tester, the double-sided adhesive tape is peeled at a certain speed after the 90-degree peeling tester is started, and the minimum load force for peeling the double-sided adhesive tape is recorded, so that the peeling strength is calculated, and if the peeling strength is more than or equal to 8N/cm, the peeling strength performance of the composite current collector reaches the standard when the double-sided adhesive tape still cannot peel the plating layer on the surface of the composite current collector.
The principle of the 90-degree peeling testing machine is shown in CN 204008421U, and particularly shown in FIG. 2, the 90-degree peeling testing machine comprises a driving part 3, a test bench 4, a 45-degree screw rod assembly 5, a connecting block 6, a force sensor 7, a vertical fixing rod 8 and a chuck 9; the driving part 3 is a power output part of the 45-degree screw rod assembly 5, the 45-degree screw rod assembly 5 is provided with a screw rod 51, a first guide rod 52 and a second guide rod 53 which are arranged on two sides of the screw rod 51, the connecting block 6 moves along the 45-degree screw rod assembly 5, namely, the connecting block 6 moves along the screw rod 51, the first guide rod 52 and the second guide rod 53, and rotation of the screw rod 51 drives the connecting block 6 to move obliquely upwards by 45 degrees. The force sensor 7 set up in connecting block 6, force sensor 7 connect vertical dead lever 8, chuck 9 set up in the bottom of vertical dead lever 8, chuck 9 centre gripping flexible metal substrate layer 1's tip, when lead screw 51 rotates, drive connecting block 6 oblique top 45 removal, and then drive vertical dead lever 8 and chuck 9 oblique top 45 removal that keeps vertical state, realize peeling off the double-sided tape with 90 gesture, react the peeling force and demonstrate through the display screen through force sensor 7, obtain peel strength through the calculation.
During testing, the test bench 4 is provided with a first fixing plate 41 and a second fixing plate 42, and the first fixing plate 41 and the second fixing plate 42 respectively compress two sides of the composite current collector 1 on the test bench 4 to expose the composite current collector with a certain width, wherein the exposed surface is a surface to be tested. The flexible metal substrate layer 1 of this embodiment selects stainless soft steel layer, copper strips or aluminum strip, and flexible metal substrate layer 1 and double faced adhesive tape 2 bond as a whole, and in view of flexible metal substrate layer 1 has the flexibility that is equivalent with double faced adhesive tape 2, simultaneously because of flexible metal substrate layer 1 elastic deformation is very little or neglect when tensile, can prevent that double faced adhesive tape from being stretched, when adopting the double faced adhesive tape of this embodiment to carry out peel strength test, the double faced adhesive tape can not take place elastic deformation because of stretching, and peel strength test result is more accurate.
In order to ensure the softness of the flexible metal substrate layer 1 and easy bending during peeling, the thickness of the flexible metal substrate layer 1 is 10-200 mu m, and the thickness of the flexible metal substrate layer 1 is preferably 50-100 mu m; in order to ensure the adhesion between the flexible metal base layer 1 and the double-sided adhesive layer 2, the surface roughness of the flexible metal base layer 1 is 1 μm to 2 μm, and the surface roughness of the flexible metal base layer is preferably 1.5 μm.
To accommodate a 90 ° peel tester, the size of the double-sided adhesive layer 2 is (1 cm-4 cm) (6 cm-8 cm), and the size of the double-sided adhesive layer is preferably 1cm by 7cm. Under the condition that the size of the double-sided adhesive layer is 1cm x 7cm, the size of the exposed composite current collector is also 1cm x 7cm, when the clamping head of the 90-degree peeling test machine clamps one end of the double-sided adhesive tape, in order to prevent the clamping head from clamping the double-sided adhesive layer 2, the width of the flexible metal substrate layer 1 is equal to that of the double-sided adhesive layer 2, and the length of the flexible metal substrate layer 1 is at least 1cm larger than that of the double-sided adhesive layer 2, for example, the size of the flexible metal substrate layer is 1cm x 8cm, so that the clamping head only clamps the flexible metal substrate layer 1 and can not clamp the double-sided adhesive layer 2.
Claims (10)
1. The double-sided adhesive tape for testing the composite current collector is characterized by comprising a flexible metal substrate layer and a double-sided adhesive layer adhered to the surface of the flexible metal substrate layer;
the double-sided adhesive layer comprises a first bonding surface and a second bonding surface, wherein the first bonding surface is used for bonding the flexible metal substrate layer, and the second bonding surface is a peeling strength testing surface.
2. The double-sided tape for composite current collector testing according to claim 1, wherein the flexible metal base layer has a thickness of 10 μm to 200 μm.
3. The double-sided tape for composite current collector testing according to claim 1, wherein the flexible metal base layer has a thickness of 50 μm to 100 μm.
4. A double sided tape for composite current collector testing according to any of claims 1-3, wherein the flexible metal base layer is a stainless mild steel layer, a copper strip or an aluminum strip.
5. The double-sided tape for composite current collector testing according to claim 4, wherein the double-sided adhesive layer has a size of (1 cm-4 cm) (6 cm-8 cm).
6. The double-sided tape for composite current collector testing according to claim 4, wherein the double-sided adhesive layer has a size of 1cm x 7cm.
7. The double-sided tape for composite current collector testing according to claim 5 or 6, wherein the flexible metal base layer is equal to the double-sided adhesive layer in width, and wherein the flexible metal base layer is at least 1cm longer than the double-sided adhesive layer.
8. The composite current collector test double-sided tape of claim 7, wherein the flexible metal base layer has a dimension of 1cm x 8cm.
9. The double-sided tape for composite current collector testing according to claim 4, wherein the flexible metal base layer has a surface roughness of 1 μm to 2 μm.
10. The double-sided tape for composite current collector testing according to claim 4, wherein the flexible metal base layer has a surface roughness of 1.5 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322165759.2U CN220564519U (en) | 2023-08-14 | 2023-08-14 | Double-sided adhesive tape for testing composite current collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322165759.2U CN220564519U (en) | 2023-08-14 | 2023-08-14 | Double-sided adhesive tape for testing composite current collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220564519U true CN220564519U (en) | 2024-03-08 |
Family
ID=90101509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322165759.2U Active CN220564519U (en) | 2023-08-14 | 2023-08-14 | Double-sided adhesive tape for testing composite current collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220564519U (en) |
-
2023
- 2023-08-14 CN CN202322165759.2U patent/CN220564519U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |