CN211843507U - High corrosion-resistant multi-coating-fluorine-layer type soft-coating aluminum-plastic film for aluminum-ion battery - Google Patents
High corrosion-resistant multi-coating-fluorine-layer type soft-coating aluminum-plastic film for aluminum-ion battery Download PDFInfo
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- CN211843507U CN211843507U CN201922487239.7U CN201922487239U CN211843507U CN 211843507 U CN211843507 U CN 211843507U CN 201922487239 U CN201922487239 U CN 201922487239U CN 211843507 U CN211843507 U CN 211843507U
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- Prior art keywords
- aluminum
- fluorine
- layer
- corrosion
- ion battery
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- 238000005260 corrosion Methods 0.000 title claims abstract description 35
- 230000007797 corrosion Effects 0.000 title claims abstract description 35
- 239000011248 coating agent Substances 0.000 title claims abstract description 24
- 238000000576 coating method Methods 0.000 title claims abstract description 24
- 239000002985 plastic film Substances 0.000 title claims abstract description 23
- 229920006255 plastic film Polymers 0.000 title claims abstract description 23
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 39
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 38
- 239000011737 fluorine Substances 0.000 claims abstract description 38
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 37
- -1 polypropylene Polymers 0.000 claims abstract description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000004743 Polypropylene Substances 0.000 claims abstract description 10
- 239000011888 foil Substances 0.000 claims abstract description 10
- 229920001155 polypropylene Polymers 0.000 claims abstract description 10
- 239000010410 layer Substances 0.000 claims description 43
- 239000011247 coating layer Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 abstract description 12
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical compound [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 5
- 239000005030 aluminium foil Substances 0.000 abstract description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 3
- 238000005538 encapsulation Methods 0.000 abstract description 3
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 2
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 238000004806 packaging method and process Methods 0.000 description 8
- 238000007789 sealing Methods 0.000 description 5
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 4
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical group FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 4
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 4
- 229920001567 vinyl ester resin Polymers 0.000 description 4
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical group [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000989 Alclad Inorganic materials 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 239000002131 composite 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
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model relates to a high corrosion-resistant many coating fluorine layer type soft package aluminum-ion battery plastic-aluminum membrane. The aluminum-plastic film sequentially comprises a polypropylene layer, a first fluorine-coated corrosion-resistant layer, an aluminum foil layer, a second fluorine-coated corrosion-resistant layer and a fluorine-coated layer from inside to outside; the utility model discloses utilize the stability characteristic of fluorine material, adopt and scribble fluorine corrosion resistant layer and the long-term corrosion resistance problem of solution plastic-aluminum membrane for the aluminium ion battery that fluorine coating can be fine, utilize the heat sealability of inlayer polypropylene and the separation and the ductility of aluminium foil simultaneously, make the plastic-aluminum membrane possess excellent corrosion resistance through scribbling fluorine and multilayer complex, the separation performance, the heat sealability, ductility and puncture resistance, can satisfy soft packet of aluminium ion battery quick charge, stronger corrosion resistance, higher cycle number, more reliable safe plastic-aluminum membrane encapsulation demand, but the plastic-aluminum membrane that this technology made uses furthest at aluminium ion battery for a long time and guarantees that the aluminium foil is bright full, the oxidation corrosion phenomenon can not appear, can be applied to soft packet of lithium ion battery encapsulation simultaneously.
Description
Technical Field
The utility model relates to a soft packet of aluminum ion battery, soft packet of lithium ion battery packaging material field, in particular to high corrosion-resistant many fluorine coating type soft packet of aluminum ion battery plastic-aluminum membrane.
Background
The soft package aluminum battery is the main development direction of the battery in the future, and how to realize the reliable packaging of the soft package aluminum ion battery and ensure, stabilize and improve the performance of the soft package aluminum ion battery are important concerns of relevant 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 soft package aluminum-ion battery. The current soft package aluminum plastic film is mainly applied to packaging of soft package lithium ion batteries, the aluminum ion batteries can be charged for 1min at the fastest time, the cycle frequency reaches more than 7500 times, the corrosion-resistant environment requirement is more severe and complex, and the current aluminum plastic film is difficult to meet the packaging requirement.
The soft-package aluminum 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, if phenomena such as aluminum foil corrosion, perforation and the like occur in the battery, the capacity of the soft-package aluminum ion battery is reduced, the voltage drop is increased, the battery charge-discharge and cycle life are rapidly reduced, and even if the battery is seriously failed, the battery is rapidly, so that the packaging aluminum-plastic film material of the soft-package aluminum ion battery generally requires extremely high corrosion resistance, and how to develop the packaging aluminum-plastic film of the aluminum ion battery with high corrosion resistance and better heat sealing performance, barrier performance and various indexes has very important significance on the long-term stable operation of the battery.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a soft packet of aluminium ion battery plastic-aluminum membrane of high corrosion-resistant many fluorine coating types, this plastic-aluminum membrane have high corrosion resisting property and excellent heat sealability and separation performance, and consumer battery and power battery product can be made to the aluminium ion battery with this plastic-aluminum membrane encapsulation.
The technical scheme of the utility model is that: the utility model provides a high corrosion-resistant many coating fluorine layer type soft alclad ion battery plastic-aluminum membrane, this plastic-aluminum membrane includes polypropylene layer, first coating fluorine corrosion resistant layer, aluminium foil layer, second coating fluorine corrosion resistant layer and coating fluorine layer.
As a preferable proposal of the utility model, the thickness of the polypropylene layer is 30-120 μm.
As a preferred scheme of the utility model, the first fluorine-coated corrosion-resistant layer and the second fluorine-coated corrosion-resistant layer are one or more of tetrafluoroethylene, chlorotrifluoroethylene, vinyl ether and vinyl ester, contain the multi-paw silane structure, and the fluorine layer thickness is 1-5 μm.
As a preferred scheme of the utility model, the thickness of the aluminum foil layer is 30-100 μm.
As a preferred scheme of the utility model, the fluorine coating is one or more of tetrafluoroethylene, chlorotrifluoroethylene, vinyl ether and vinyl ester, and the thickness is 10-40 μm.
After the technical scheme is adopted, the beneficial effects of the utility model are that: firstly, the aluminum-plastic film can effectively prevent the electrolyte in the battery from corroding the aluminum foil in the aluminum-plastic film by coating a fluorine bonding layer; and secondly, the outer layer of the fluorine coating layer can prevent the problem of corrosion caused by overflow in battery filling liquid, and meanwhile, the stability of the fluorine material can prevent the corrosion effect of oxygen and water on the inner layer of aluminum foil, 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.
Wherein, the polypropylene layer 1, the first fluorine-coated corrosion-resistant layer 2, the aluminum foil layer 3, the second fluorine-coated corrosion-resistant layer 4 and the fluorine-coated layer 5.
Detailed Description
The invention will be further elucidated with reference to the embodiments described hereinafter.
Examples
As shown in figure 1, the utility model provides a high corrosion-resistant many coating fluorine layer type soft package aluminum-ion battery plastic-aluminum membrane, including polypropylene layer 1, first coating fluorine corrosion-resistant layer 2, aluminium foil layer 3, second coating fluorine corrosion-resistant layer 4, coating fluorine layer 5.
The aluminum-plastic film sequentially comprises a polypropylene layer 1, a first fluorine-coated corrosion-resistant layer 2, an aluminum foil layer 3, a second fluorine-coated corrosion-resistant layer 4 and a fluorine-coated layer 5 from inside to outside.
The thickness of the polypropylene layer is 30-120 mu m.
The fluorine-coated corrosion-resistant layer is formed by copolymerizing one or more of tetrafluoroethylene, chlorotrifluoroethylene, vinyl ether and vinyl ester, and contains a multi-paw silane structure, and the thickness of the fluorine layer is 1-5 mu m.
The thickness of the aluminum foil layer is 30-100 μm.
The fluorine coating is formed by copolymerizing tetrafluoroethylene, chlorotrifluoroethylene, vinyl ether and/or vinyl ester, and the thickness of the fluorine coating is 10-40 mu m.
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 the electrolyte at the temperature of 85 ℃ 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 the temperature of 60 ℃ and the RH of 90 percent, and the interlayer peeling strength is more than 10N/15 mm;
2. and (3) measuring the deep drawing performance of the material: according to the determination standard of Q/320507LD001-2016 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 sealing strength of plastic film packing bag, the heat sealing strength reaches over 80N/15mm at the heat sealing 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 high-corrosion-resistance multi-fluorine-coating-layer aluminum-plastic film for the soft-coated aluminum ion battery is characterized by sequentially comprising a polypropylene layer (1), a first fluorine-coating corrosion-resistance layer (2), an aluminum foil layer (3), a second fluorine-coating corrosion-resistance layer (4) and a fluorine-coating layer (5) from inside to outside.
2. The aluminum-plastic film for the high corrosion-resistant multi-coated fluorine layer type soft aluminum-coated ion battery as claimed in claim 1, wherein the thickness of the polypropylene layer is 30 to 120 μm.
3. The aluminum-plastic film for the high-corrosion-resistance multi-coating type soft aluminum-coated ion battery according to claim 1, wherein: the first and second fluorine-coated corrosion resistant layers have a thickness of 1-5 μm.
4. The aluminum-plastic film for the high-corrosion-resistance multi-coating type soft aluminum-coated ion battery according to claim 1, wherein: the thickness of the aluminum foil layer is 30-100 μm.
5. The aluminum-plastic film for the high-corrosion-resistance multi-coating type soft aluminum-coated ion battery according to claim 1, wherein: the thickness of the fluorine coating is 10-40 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922487239.7U CN211843507U (en) | 2019-12-31 | 2019-12-31 | High corrosion-resistant multi-coating-fluorine-layer type soft-coating aluminum-plastic film for aluminum-ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922487239.7U CN211843507U (en) | 2019-12-31 | 2019-12-31 | High corrosion-resistant multi-coating-fluorine-layer type soft-coating aluminum-plastic film for aluminum-ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211843507U true CN211843507U (en) | 2020-11-03 |
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|---|---|---|---|
| CN201922487239.7U Active CN211843507U (en) | 2019-12-31 | 2019-12-31 | High corrosion-resistant multi-coating-fluorine-layer type soft-coating aluminum-plastic film for aluminum-ion battery |
Country Status (1)
| Country | Link |
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| CN (1) | CN211843507U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114520367A (en) * | 2022-01-20 | 2022-05-20 | 上海紫江新材料科技股份有限公司 | Preparation method of electrolyte corrosion resistant aluminum-plastic film with fluorine-containing inner surface |
-
2019
- 2019-12-31 CN CN201922487239.7U patent/CN211843507U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114520367A (en) * | 2022-01-20 | 2022-05-20 | 上海紫江新材料科技股份有限公司 | Preparation method of electrolyte corrosion resistant aluminum-plastic film with fluorine-containing inner surface |
| CN114520367B (en) * | 2022-01-20 | 2023-07-18 | 上海紫江新材料科技股份有限公司 | Preparation method of electrolyte corrosion resistant aluminum-plastic film with fluorine-containing inner surface |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: Building A, 1st Floor, Yongchun Industrial Building 1, No. 8 Chunwang Road, Huangdai Town, Xiangcheng District, Suzhou City, Jiangsu Province, 215000 Patentee before: SUZHOU LIDUN ENERGY STORAGE MATERIAL TECHNOLOGY Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |