CN211858689U - double-PP-AL combined aluminum-plastic film - Google Patents
double-PP-AL combined aluminum-plastic film Download PDFInfo
- Publication number
- CN211858689U CN211858689U CN202020448975.1U CN202020448975U CN211858689U CN 211858689 U CN211858689 U CN 211858689U CN 202020448975 U CN202020448975 U CN 202020448975U CN 211858689 U CN211858689 U CN 211858689U
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- Prior art keywords
- layer
- aluminum
- plastic
- plastic film
- glue film
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- 239000002985 plastic film Substances 0.000 title claims description 19
- 229920006255 plastic film Polymers 0.000 title claims description 19
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 30
- 239000003292 glue Substances 0.000 claims abstract description 18
- 239000004743 Polypropylene Substances 0.000 claims abstract description 17
- -1 polypropylene Polymers 0.000 claims abstract description 17
- 229920001155 polypropylene Polymers 0.000 claims abstract description 17
- 239000012528 membrane Substances 0.000 claims abstract description 12
- 239000004677 Nylon Substances 0.000 claims abstract description 9
- 229920001778 nylon Polymers 0.000 claims abstract description 9
- 239000005030 aluminium foil Substances 0.000 claims abstract description 8
- 239000010410 layer Substances 0.000 claims description 46
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 18
- 239000011888 foil Substances 0.000 claims description 13
- 239000012790 adhesive layer Substances 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 230000009977 dual effect Effects 0.000 claims 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 10
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 10
- 229920000642 polymer Polymers 0.000 abstract description 9
- 238000005260 corrosion Methods 0.000 abstract description 8
- 230000007797 corrosion Effects 0.000 abstract description 8
- 239000003792 electrolyte Substances 0.000 abstract description 6
- 238000000926 separation method Methods 0.000 abstract description 2
- 238000005538 encapsulation Methods 0.000 abstract 1
- 238000004806 packaging method and process Methods 0.000 description 6
- 239000011229 interlayer Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
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
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- Laminated Bodies (AREA)
Abstract
The utility model relates to a two combined polymer lithium ion battery plastic-aluminum membranes of PP-AL. This plastic-aluminum membrane includes first polypropylene layer, first glue film, first aluminium foil layer, second polypropylene layer, second glue film, second aluminium foil layer, third glue film, nylon layer from inside to outside in proper order, the utility model discloses utilize the characteristic of two PP-AL combinations, solved inner layer PP-AL well and appeared electrolyte and corrode outer PP-AL and can carry out the secondary protection when piercing through, improved the corrosion resistance of plastic-aluminum membrane and the intensity value of separation nature, can satisfy plastic-aluminum membrane encapsulation polymer lithium ion battery.
Description
Technical Field
The utility model relates to a polymer lithium ion battery packaging material field, in particular to combined plastic-aluminum membrane of two PP-AL.
Background
The polymer lithium ion battery is a main direction for the development of the future lithium ion battery, and how to ensure, stabilize and improve the performance of the polymer lithium ion battery is an important concern of related battery manufacturers. The performance of the battery is closely related to the electrolyte, the diaphragm, the anode and cathode materials in the battery and the packaging aluminum plastic film of the polymer lithium ion battery.
The polymer lithium ion battery is finally packaged by an aluminum-plastic film to form a finished battery, the quality of the packaged aluminum-plastic film has important influence on various performances of the finished battery, if the quality of the aluminum-plastic film is not over-critical, the water and oxygen content in the battery reaches a certain degree or aluminum foil corrosion, perforation and other phenomena occur, the capacity of the polymer lithium ion battery is reduced, the voltage drop is increased, the charge and discharge and cycle life of the battery are rapidly reduced, and the battery can even rapidly lose efficacy in severe cases, so that the battery packaging aluminum-plastic film material generally requires extremely high heat sealing performance, barrier performance and corrosion resistance, and therefore how to develop the lithium battery packaging aluminum-plastic film with excellent heat sealing performance, barrier performance and corrosion resistance has very important significance on the stable operation of the battery.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a two combined plastic-aluminum membranes of PP-AL, this plastic-aluminum membrane have high heat sealability, separation performance and corrosion resisting property, can make consumer batteries and power battery product with this plastic-aluminum membrane.
The technical scheme of the utility model is that: the utility model provides a two combined plastic-aluminum membranes of PP-AL, this plastic-aluminum membrane includes first polypropylene layer, first glue film, first aluminium foil layer, second polypropylene layer, second glue film, second aluminium foil layer, third glue film, nylon layer.
As a preferable scheme of the utility model, the thickness of the first polypropylene layer and the second polypropylene layer is 20-80 μm.
As a preferable scheme of the present invention, the thickness of the first glue layer, the second glue layer and the third glue layer is 1-20 μm.
As a preferable aspect of the present invention, the first aluminum foil layer and the second aluminum foil layer have a thickness of 30 to 100 μm.
As a preferred scheme of the utility model, the thickness of the nylon layer is 5-45 μm.
After the technical scheme is adopted, the beneficial effects of the utility model are that: firstly, the aluminum-plastic film can effectively prevent electrolyte in the battery from completely penetrating and corroding multiple layers of aluminum foils in the aluminum-plastic film through the PP-AL double combined layer; and secondly, the multilayer aluminum foil can improve the integral corrosion resistance of the aluminum-plastic film, and meanwhile, the stability of the aluminum foil material can prevent the corrosion effect of oxygen and water on the battery electrolyte, so that the product has excellent comprehensive performance and is suitable for packaging and application of consumer batteries and power battery products.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The adhesive comprises a first polypropylene layer 1, a first adhesive layer 2, a first aluminum foil layer 3, a second polypropylene layer 4, a second adhesive layer 5, a second aluminum foil layer 6, a third adhesive layer 7 and a nylon layer 8.
Detailed Description
The invention will be further elucidated with reference to the embodiments described hereinafter.
Examples
As shown in fig. 1, the utility model provides a many scribble fluorine layer type polymer lithium ion battery plastic-aluminum membrane, including first polypropylene layer 1, first glue film 2, first aluminium foil layer 3, second polypropylene layer 4, second glue film 5, second aluminium foil layer 6, third glue film 7, nylon layer 8.
The aluminum plastic film is sequentially provided with a first polypropylene layer 1, a first glue layer 2, a first aluminum foil layer 3, a second polypropylene layer 4, a second glue layer 5, a second aluminum foil layer 6, a third glue layer 7 and a nylon layer 8 from inside to outside.
The thickness of the polypropylene layer is 20-80 μm.
The thickness of the adhesive layer is 1-20 μm.
The thickness of the aluminum foil layer is 30-100 μm.
The thickness of the nylon layer is 5-45 μm.
The utility model discloses a product reaches following index through the survey:
1. and (3) determining the interlayer peeling strength and the corrosion resistance: according to the determination standard of GB/T8808 and 1988 soft composite plastic material peeling test method, the interlayer peeling strength is greater than 22N/15 mm; after the aluminum-plastic film is soaked in 85 □ electrolyte for 4 hours, the interlayer peeling strength is more than 10N/15 mm; the aluminum-plastic film is subjected to deep drawing forming to prepare a battery core, the battery core is sealed after being injected with electrolyte and is stored for 14 days at 60 □ and 90% RH, and the interlayer peeling strength is greater than 10N/15 mm;
2. and (3) measuring the deep drawing performance of the material: according to the determination standard of Q/320507LD001-2016 lithium battery packaging aluminum-plastic film, the deep punching depth reaches more than 8.5 mm;
3. and (3) heat sealing performance measurement: according to the test standard of QB/T2358-1998 heat-seal strength test method for plastic film packaging bags, the heat-seal strength reaches more than 80N/15mm under the condition of the heat-seal temperature of 180 □ -200 □.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. The utility model provides a two combined plastic-aluminum membranes of PP-AL which characterized in that includes first polypropylene layer (1), first glue film (2), first aluminium foil layer (3), second polypropylene layer (4), second glue film (5), second aluminium foil layer (6), third glue film (7), nylon layer (8) from inside to outside in proper order.
2. The dual PP-AL combined aluminum plastic film according to claim 1, wherein the thickness of the first polypropylene layer and the second polypropylene layer is 20 to 80 μm.
3. The dual PP-AL combined aluminum plastic film according to claim 1, wherein the thickness of the first adhesive layer, the second adhesive layer and the third adhesive layer is 1 to 20 μm.
4. The dual PP-AL combination aluminum plastic film according to claim 1, wherein the first aluminum foil layer and the second aluminum foil layer have a thickness of 30 to 100 μm.
5. The aluminum-plastic composite film with double PP-AL combinations according to claim 1, wherein the thickness of the nylon layer is 5 to 45 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020448975.1U CN211858689U (en) | 2020-03-31 | 2020-03-31 | double-PP-AL combined aluminum-plastic film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020448975.1U CN211858689U (en) | 2020-03-31 | 2020-03-31 | double-PP-AL combined aluminum-plastic film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211858689U true CN211858689U (en) | 2020-11-03 |
Family
ID=73144158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020448975.1U Active CN211858689U (en) | 2020-03-31 | 2020-03-31 | double-PP-AL combined aluminum-plastic film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211858689U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111430580A (en) * | 2020-03-31 | 2020-07-17 | 苏州锂盾储能材料技术有限公司 | Double PP-A L combined aluminum-plastic film and manufacturing method thereof |
| CN114308575A (en) * | 2021-12-27 | 2022-04-12 | 深圳市安博瑞新材料科技有限公司 | CVD nylon layer surface treatment technology process |
-
2020
- 2020-03-31 CN CN202020448975.1U patent/CN211858689U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111430580A (en) * | 2020-03-31 | 2020-07-17 | 苏州锂盾储能材料技术有限公司 | Double PP-A L combined aluminum-plastic film and manufacturing method thereof |
| CN114308575A (en) * | 2021-12-27 | 2022-04-12 | 深圳市安博瑞新材料科技有限公司 | CVD nylon layer surface treatment technology process |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 759, Zhizhou Avenue, Huaxi Street, Changxing County, Huzhou City, Zhejiang Province 313000 Patentee after: Zhejiang Lidun Energy Storage Material Technology Co.,Ltd. Country or region after: China Address before: 215138 1st floor, building a, No.1 Yongchun industrial square, No.8 Chunwang Road, Huangdai Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee before: SUZHOU LIDUN ENERGY STORAGE MATERIAL TECHNOLOGY Co.,Ltd. Country or region before: China |