CN207381438U - Corrosion resistant copper plastic film - Google Patents
Corrosion resistant copper plastic film Download PDFInfo
- Publication number
- CN207381438U CN207381438U CN201721429662.6U CN201721429662U CN207381438U CN 207381438 U CN207381438 U CN 207381438U CN 201721429662 U CN201721429662 U CN 201721429662U CN 207381438 U CN207381438 U CN 207381438U
- Authority
- CN
- China
- Prior art keywords
- layer
- plastic film
- copper foil
- corrosion resistant
- chromate coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 239000002985 plastic film Substances 0.000 title claims abstract description 25
- 229920006255 plastic film Polymers 0.000 title claims abstract description 25
- 239000010949 copper Substances 0.000 title claims abstract description 24
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 24
- 230000007797 corrosion Effects 0.000 title claims abstract description 23
- 238000005260 corrosion Methods 0.000 title claims abstract description 23
- 239000010410 layer Substances 0.000 claims abstract description 60
- 239000011889 copper foil Substances 0.000 claims abstract description 23
- 238000000576 coating method Methods 0.000 claims abstract description 22
- 239000011248 coating agent Substances 0.000 claims abstract description 20
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 239000011241 protective layer Substances 0.000 claims abstract description 15
- 239000000853 adhesive Substances 0.000 claims abstract description 7
- 230000001070 adhesive effect Effects 0.000 claims abstract description 7
- PXLIDIMHPNPGMH-UHFFFAOYSA-N sodium chromate Chemical compound [Na+].[Na+].[O-][Cr]([O-])(=O)=O PXLIDIMHPNPGMH-UHFFFAOYSA-N 0.000 claims description 5
- 229920005749 polyurethane resin Polymers 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 4
- 239000004411 aluminium Substances 0.000 abstract description 4
- 150000001879 copper Chemical class 0.000 abstract description 4
- 229910052744 lithium Inorganic materials 0.000 abstract description 4
- 239000011229 interlayer Substances 0.000 abstract description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 206010016766 flatulence Diseases 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
- Secondary Cells (AREA)
Abstract
The utility model provides a kind of corrosion resistant copper plastic film; the hot sealing layer of protective layer including outer layer, intermediate copper foil layer and internal layer; the coated on both sides of the copper foil layer has chromate coating, and the chromate coating of the copper foil layer both sides is combined by adhesive with protective layer and hot sealing layer respectively.The interlayer of the utility model is copper foil layer, and the coated on both sides of the copper foil layer has chromate coating, and the setting of chromate coating makes copper foil layer have corrosion resistance, is not easy by electrolytic corrosion, it is ensured that the security performance for the lithium battery produced；And metallic copper compares metallic aluminium and wants cheap, it can thus be appreciated that low manufacture cost of the cost of manufacture of this copper plastic film than aluminum plastic film, so as to reduce the production cost of manufacturer.
Description
Technical field
The utility model is related to lithium battery production technical field, more particularly to a kind of corrosion resistant copper plastic film.
Background technology
Lithium ion battery has had more than 20 so far as a most widely used rechargeable battery Zi research and development to application
Year history.As other batteries, lithium ion battery is also by anode, cathode, membrane, electrolyte, collector and outer packing
Housing forms.The chemical property of lithium ion battery active ingredient is all very active, is placed in air to be easy to catch fire and even explode,
Thus the packaging shell of lithium ion battery should have certain corrosion resistance and very excellent barrier property, currently used packaging
Mainly there are box hat, aluminum hull and high molecular aluminium plastic film.Battery is packed using aluminum-plastic composite membrane, have many advantages, such as it is light-weight,
The ratio energy of battery can significantly be promoted.And laminated aluminum film film has very big flexibility, can effectively reduce electricity
The internal pressure in pond is not in explosion danger.
The price of metallic aluminium at present, thus the cost of manufacture of aluminum plastic film is higher.In view of the above-mentioned problems, there is part businessman to carry
Go out a kind of copper plastic film, however the surface of the copper foil layer in this copper plastic film is not easily formed passivation layer, causes copper foil layer and protection
It is all be bonded insecure between copper foil layer and hot sealing layer between layer, easily come off, once the easy quilt of copper foil layer and electrolyte contacts
Corrosion a series of problems, such as so as to cause battery short circuit, battery flatulence, but will generate Fire explosion, be easy to cause not when serious
Repairable security incident.
Utility model content
The utility model in view of the existing deficiencies of the prior art, provides a kind of corrosion resistant copper plastic film, can make copper plastic film
In copper foil layer have corrosion resistance, be not easy by electrolytic corrosion, it is ensured that the security performance for the lithium battery produced.
To achieve the above object, the utility model is using following technical solution：
A kind of corrosion resistant copper plastic film, the hot sealing layer of the protective layer including outer layer, intermediate copper foil layer and internal layer, the copper
The coated on both sides of layers of foil has a chromate coating, the chromate coatings of the both sides of the copper foil layer by adhesive respectively with protective layer
It is combined with hot sealing layer.
As a preferred embodiment, the chromate coating is sodium chromate coating.
As a preferred embodiment, the thickness of the chromate coating is 10nm-200nm.
As a preferred embodiment, the protective layer is PA layers or pet layer.
As a preferred embodiment, the thickness of the protective layer is 5-50 μm.
As a preferred embodiment, the hot sealing layer is CPP layers.
As a preferred embodiment, the thickness of the hot sealing layer is 10-100 μm.
As a preferred embodiment, described adhesive is polyurethane resin.
The utility model compared with prior art, has the following advantages and advantage, specifically, the interlayer of this copper plastic film
For copper foil layer, the coated on both sides of the copper foil layer has chromate coating, and the setting of chromate coating makes copper foil layer with corrosion-resistant
Property, it is not easy by electrolytic corrosion, it is ensured that the security performance for the lithium battery produced；And metallic copper compare metallic aluminium will be just
Preferably, it can thus be appreciated that the cost of manufacture of this copper plastic film than aluminum plastic film low manufacture cost, so as to reduce the production of manufacturer
Cost.
More clearly to illustrate the structure feature of the utility model, technological means and its specific purposes and work(reached
Can, the utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings：
Description of the drawings
Fig. 1 is the assembly structure diagram of the embodiment of the utility model.
Attached drawing identifier declaration：
1- protective layers, 2- copper foil layers, 3- hot sealing layers, 4- adhesives, 5- chromate coatings.
Specific embodiment
As shown in Figure 1, a kind of corrosion resistant copper plastic film, the protective layer 1 including outer layer, intermediate copper foil layer 2 and internal layer
Hot sealing layer 3, the coated on both sides of the copper foil layer 2 have chromate coating 5, and the chromate coating 5 of 2 both sides of copper foil layer, which passes through, to be glued
Mixture 4 is combined respectively with protective layer 1 and hot sealing layer 3, the chromate coating 5 be sodium chromate coating, the sodium chromate coating by
Sodium chromate and acrylic resin are made by mixing.The thickness of the chromate coating 5 is 10nm-200nm, preferably 20nm.
The protective layer 1 is PA layers or pet layer.The thickness of the protective layer 1 is 5-50 μm, preferably 15 μm.The hot sealing layer 3 is
CPP layers.The thickness of the hot sealing layer 3 is 10-100 μm, preferably 30 μm.Described adhesive 4 is polyurethane resin.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, therefore every
Technology according to the utility model is actual to above example any modifications, equivalent replacements and improvements are made, still falls within this
In the range of utility model technical solution.
Claims (8)
1. a kind of corrosion resistant copper plastic film, it is characterised in that：The heat-sealing of protective layer including outer layer, intermediate copper foil layer and internal layer
Layer, the coated on both sides of the copper foil layer have chromate coating, and the chromate coating of the copper foil layer both sides is distinguished by adhesive
It is combined with protective layer and hot sealing layer.
2. corrosion resistant copper plastic film according to claim 1, it is characterised in that：The chromate coating applies for sodium chromate
Layer.
3. corrosion resistant copper plastic film according to claim 1 or 2, it is characterised in that：The thickness of the chromate coating is
10nm-200nm。
4. corrosion resistant copper plastic film according to claim 1, it is characterised in that：The protective layer is PA layers or pet layer.
5. corrosion resistant copper plastic film according to claim 4, it is characterised in that：The thickness of the protective layer is 5-50 μm.
6. corrosion resistant copper plastic film according to claim 1, it is characterised in that：The hot sealing layer is CPP layers.
7. corrosion resistant copper plastic film according to claim 6, it is characterised in that：The thickness of the hot sealing layer is 10-100 μ
m。
8. corrosion resistant copper plastic film according to claim 1, it is characterised in that：Described adhesive is polyurethane resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721429662.6U CN207381438U (en) | 2017-10-30 | 2017-10-30 | Corrosion resistant copper plastic film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721429662.6U CN207381438U (en) | 2017-10-30 | 2017-10-30 | Corrosion resistant copper plastic film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207381438U true CN207381438U (en) | 2018-05-18 |
Family
ID=62333754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721429662.6U Active CN207381438U (en) | 2017-10-30 | 2017-10-30 | Corrosion resistant copper plastic film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207381438U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11682809B2 (en) | 2018-08-29 | 2023-06-20 | Lg Energy Solution, Ltd. | Pouch-type secondary battery and pouch for secondary battery |
-
2017
- 2017-10-30 CN CN201721429662.6U patent/CN207381438U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11682809B2 (en) | 2018-08-29 | 2023-06-20 | Lg Energy Solution, Ltd. | Pouch-type secondary battery and pouch for secondary battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240206 Address after: 213000, No. 617, Wharf West Street, Kunlun Street, Liyang City, Changzhou City, Jiangsu Province Patentee after: LIYANG ZHUOYUE NEW MATERIAL TECHNOLOGY CO.,LTD. Country or region after: China Address before: 523000 building F, Dongxing Industrial Park, Kangle Road, Hengli Town, Dongguan City, Guangdong Province Patentee before: DONGGUAN ZHUOYUE NEW MATERIAL TECHNOLOGY Co.,Ltd. Country or region before: China |