CN109554136A - A kind of lithium ion battery special adhesive tape and its application - Google Patents
A kind of lithium ion battery special adhesive tape and its application Download PDFInfo
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- CN109554136A CN109554136A CN201811136908.XA CN201811136908A CN109554136A CN 109554136 A CN109554136 A CN 109554136A CN 201811136908 A CN201811136908 A CN 201811136908A CN 109554136 A CN109554136 A CN 109554136A
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- adhesive tape
- lithium ion
- layer
- ion battery
- special adhesive
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/29—Laminated material
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/35—Heat-activated
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/33—Applications of adhesives in processes or use of adhesives in the form of films or foils for batteries or fuel cells
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/16—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer
- C09J2301/162—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer the carrier being a laminate constituted by plastic layers only
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/302—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/304—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being heat-activatable, i.e. not tacky at temperatures inferior to 30°C
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2423/00—Presence of polyolefin
- C09J2423/10—Presence of homo or copolymers of propene
- C09J2423/106—Presence of homo or copolymers of propene in the substrate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2467/00—Presence of polyester
- C09J2467/006—Presence of polyester in the substrate
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a kind of lithium ion battery special adhesive tape and its applications, lithium ion battery special adhesive tape includes protective layer, substrate layer and adhesive layer, and the protective layer is polyamide film, and the substrate layer is made of the upper and lower, upper layer is PET polyester film, and lower layer is polypropylene film；It is wrapped around lithium ion battery special adhesive tape in battery core outer diaphragm surface entire area, the battery core that adhesive tape coats is entered into shell, injection electrolyte, aging, the obtained lithium battery of two envelopes.By using the lithium ion battery special adhesive tape, lithium ion battery special adhesive tape of the present invention can increase the security performance of battery core, reduce the expansion of deformation and pole piece that battery core generates in charge and discharge use process, so as to improve positive/negative plate interface, the chemical property of the battery core is improved.
Description
Technical field
The invention belongs to lithium ion battery technologies to assemble field, and in particular to a kind of lithium ion battery special adhesive tape and its
Using.
Background technique
Lithium ion battery is as a kind of green energy resource, since the beginning of the nineties in last century, since successfully developing, just with it than energy
The unique advantages such as amount is high, operating voltage is high, the wide self-discharge rate of temperature limit is low, has extended cycle life, is pollution-free and by pass
Note.
Lithium ion battery assembling manufacturing process in, terminal adhesive tape usually as battery core terminated site fixed position, with
Battery core after preventing assembly occurs loosely, playing the role of insulation protection.But existing terminal adhesive tape is by electrolytic corrosion
It in the use process of influence and battery, is squeezed, shakes, the abnormal environment of high temperature, the fixation and protective effect of adhesive tape are held
It is vulnerable, it is destroyed so as to cause battery structure, the security performance of battery reduces.
Chinese patent (CN 108276934A) discloses a kind of PET base material rubber terminal adhesive tape, including PET base material and painting
It covers and terminates glue-line with the rubber on its surface, stopping rubber layer includes natural rubber, butadiene-styrene rubber, Oppanol, butyl rubber
Ingredients, complex process, the thickness such as the dilute resin of glue, nitrile rubber, terpene are higher；And Chinese patent (CN105690894A) discloses one
Kind insulating tape, including substrate, hard particle layer and glue-line, the substrate are multi-cellular structure, the hard particle layer
It is stacked on the surface of the substrate, and the partial size of the particle in the hard particle layer is greater than the microporous of the substrate
Aperture, the glue-line are individually arranged with the hard particle layer, and the glue-line is stacked remote in the hard particle layer
Hard particle layer described in side from the substrate is ceramic particle layer, because substrate is multi-cellular structure, can penetrate into electricity in substrate
Liquid is solved, substrate resistance to low temperature and insulation performance are low, and hard particle layer is ceramic particle layer, lack flexibility and invulnerability.
Summary of the invention
The purpose of the present invention is to provide a kind of lithium ion battery special adhesive tape and its application, solve to propose in above-mentioned background
The problem of.
To achieve the above object, the invention provides the following technical scheme:
A kind of lithium ion battery special adhesive tape, including protective layer, substrate layer and adhesive layer, the protective layer are that polyamide is thin
Film, can greatly increase the obdurability and invulnerability of adhesive tape, while have certain resistant of high or low temperature, and the substrate layer is by upper
Layer and lower layer's composition, upper layer are PET polyester film, and lower layer is polypropylene film, passes through substrate layer PET polyester film and polypropylene
Film laminated can increase the high and low temperature resistance and electrical insulation capability of adhesive tape, while improve the punctured resistance of adhesive tape.
Further, the base the upper and lower are formed using Film laminated technique, to reduce adhesive tape layer thickness.
Further, it is combined between the base the upper and lower using polyurethane gluing, improves the machinery of adhesive tape
Intensity, to control cost.
Further, it is combined, and had good resistance to using polyurethane gluing between the protective layer and substrate layer
Warm nature and corrosion resistance further increase the mechanical strength of adhesive tape.
Further, the protective layer with a thickness of 3-30 μm.
Further, the substrate layer upper layer PET polyester film with a thickness of 5-20 μm, strata third under the substrate layer
Alkene film with a thickness of 3-20 μm.
Further, the adhesive layer be resinae melt pressure sensitive adhesive, the adhesive layer with a thickness of 10-40 μ
M, battery core keep the bonding of gummed paper and battery core outer diaphragm even closer after hot pressing process.
Further, the polyurethane adhesive layer between the protective layer and the substrate layer with a thickness of 5-20 μm.
A kind of application of above-mentioned lithium ion battery special adhesive tape in lithium ion battery, comprising the following steps:
S1 coremaking: the positive and negative electrode slurry being stirred is respectively coated on corresponding collector, and roll-in is cut, tab weldering
It connects, lamination/rolling step completes battery core production；
S2 adhesive tape cladding: it is wrapped around lithium ion battery special adhesive tape in battery core outer diaphragm surface entire area；
S3 assembling: the battery core that adhesive tape coats is entered into shell, injection electrolyte, aging, the obtained lithium battery of two envelopes.
Further, described to be wrapped around to be coated to the region-wide wound form of battery core progress laterally or longitudinally, packet
Clad can product accounts for the battery core outer diaphragm area 70%-100%.
Compared with prior art, the beneficial effects of the present invention are:
1, a kind of lithium ion battery special adhesive tape is polyamide material by protective layer, can greatly increase the strong of adhesive tape
Toughness and invulnerability, while there is certain resistant of high or low temperature；By substrate layer PET polyester film and polypropylene material are compound can
To increase the high and low temperature resistance and electrical insulation capability of adhesive tape, while improving the punctured resistance of adhesive tape；Substrate layer PET film material
The structure setting of material material and polypropylene material can choose Film laminated technique, to reduce gummed paper thickness degree, can also select
It selects and is constituted using polyurethane adhesive bonding, to control cost.By using polyurethane as between protective layer and substrate layer,
Adhesive inside substrate layer can be further improved the mechanical strength of gummed paper, and have good temperature tolerance and corrosion resistance.
By using resin type hot-melt pressure sensitive adhesive as gummed paper adhesive layer, battery core after hot pressing process, can make gummed paper and
The bonding of battery core outer diaphragm is even closer.
2, by using the lithium ion battery special adhesive tape, region-wide winding packet is carried out to battery core outer diaphragm surface
It covers, the needle thorn of the battery core can be increased, vibration is fallen, waits the security performance of abnormal environments, it is possible to reduce battery core is in charge and discharge
The expansion of the deformation and pole piece that generate in use process improves the electricity of the battery core so as to improve positive/negative plate interface
Chemical property.
Detailed description of the invention
Fig. 1 is lithium ion battery special adhesive tape structural schematic diagram in embodiment 1.
Fig. 2 is lithium ion battery special adhesive tape structural schematic diagram in embodiment 2.
Specific embodiment
Embodiment 1
A kind of lithium ion battery special adhesive tape, as shown in Figure 1, including protective layer 1, substrate layer 5 and adhesive layer 6, the base
Material layer is made of upper layer 3 and lower layer 4, is formed between the base upper layer 3 and lower layer 4 using using Film laminated technique；It is described
It is combined between protective layer 1 and substrate layer 5 using polyurethane gluing, adhesive layer 2 is with a thickness of 5 μm；The protective layer 1 is polyamides
Amine film, with a thickness of 15 μm；The substrate layer upper layer 3 is PET polyester film, with a thickness of 15 μm；Lower layer 4 is polypropylene film,
With a thickness of 15 μm；The adhesive layer 6 be resinae melt pressure sensitive adhesive, the adhesive layer 6 with a thickness of 25 μm.
Application of the lithium ion battery adhesive tape in lithium ion battery, comprising the following steps:
S1 coremaking: the positive and negative electrode slurry being stirred is respectively coated on corresponding collector, and roll-in is cut, tab weldering
It connects, lamination process completes battery core production.
S2 adhesive tape cladding: lithium ion battery special adhesive tape of the present invention is coated on battery core outer diaphragm surface.It is described
Cladding mode is that lateral entire area is wrapped around, and cladding area accounts for the battery core outer diaphragm area 90%.
S3 assembling: the battery core that adhesive tape coats is entered into shell, injection electrolyte, aging, cold-hot pressure, the obtained lithium battery of two envelopes.
Embodiment 2
A kind of lithium ion battery special adhesive tape, as shown in Fig. 2, including protective layer 11, substrate layer 15 and adhesive layer 16, it is described
Substrate layer 15 is made of upper layer 13 and lower layer 14, between the base upper layer 13 and lower layer 14 using polyurethane gluing it is compound and
At；It is combined between the protective layer 11 and substrate layer 15 using polyurethane gluing, adhesive layer 12 is with a thickness of 5 μm；It is described anti-
Sheath 11 is polyamide film, with a thickness of 10 μm；The substrate layer upper layer 13 is PET polyester film, with a thickness of 10 μm；Lower layer 14
For polypropylene film, with a thickness of 10 μm, 15 overall thickness of substrate layer is 25 μm；The adhesive layer 16 is resinae melt pressure sensitive
Property adhesive, the adhesive layer 16 with a thickness of 25 μm.
Application of the lithium ion battery adhesive tape in lithium ion battery, comprising the following steps:
S1 coremaking: the positive and negative electrode slurry being stirred is respectively coated on corresponding collector, and roll-in is cut, tab weldering
It connects, lamination process completes battery core production.
S2 adhesive tape cladding: lithium ion battery special adhesive tape of the present invention is coated on battery core outer diaphragm surface.It is described
Cladding mode is that lateral entire area is wrapped around, and cladding area accounts for the battery core outer diaphragm area 95%.
S3 assembling: the battery core that adhesive tape coats is entered into shell, injection electrolyte, aging, cold-hot pressure, the obtained lithium battery of two envelopes.
Embodiment 3
A kind of lithium ion battery special adhesive tape, including protective layer, substrate layer and adhesive layer, the substrate layer is by upper layer under
Layer forms, and is formed between the base the upper and lower using using Film laminated technique；Between the protective layer and substrate layer
It is combined using polyurethane gluing, adhesive layer is with a thickness of 5 μm；The protective layer is polyamide film, with a thickness of 30 μm；It is described
Substrate layer upper layer is PET polyester film, with a thickness of 20 μm；Lower layer is polypropylene film, with a thickness of 5 μm, the substrate layer total thickness
Degree is 25 μm；The adhesive layer be resinae melt pressure sensitive adhesive, the adhesive layer with a thickness of 25 μm.
Application of the lithium ion battery adhesive tape in lithium ion battery, comprising the following steps:
S1 coremaking: the positive and negative electrode slurry being stirred is respectively coated on corresponding collector, and roll-in is cut, tab weldering
It connects, lamination process completes battery core production.
S2 adhesive tape cladding: lithium ion battery special adhesive tape of the present invention is coated on battery core outer diaphragm surface.It is described
Cladding mode is that longitudinal entire area is wrapped around, and cladding area accounts for the battery core outer diaphragm area 98%.
S3 assembling: the battery core that adhesive tape coats is entered into shell, injection electrolyte, aging, cold-hot pressure, the obtained lithium battery of two envelopes.
The preferred embodiment of the patent is described in detail above, but this patent is not limited to above-mentioned embodiment party
Formula within the knowledge of one of ordinary skill in the art can also be under the premise of not departing from this patent objective
It makes a variety of changes.
Claims (10)
1. a kind of lithium ion battery special adhesive tape, which is characterized in that including protective layer, substrate layer and adhesive layer, the protective layer
For polyamide film, the substrate layer is made of the upper and lower, and upper layer is PET polyester film, and lower layer is polypropylene film.
2. lithium ion battery special adhesive tape according to claim 1, which is characterized in that the base the upper and lower use
Film laminated technique is formed.
3. lithium ion battery special adhesive tape according to claim 1, which is characterized in that between the base the upper and lower
It is combined using polyurethane gluing.
4. lithium ion battery special adhesive tape according to claim 1, which is characterized in that between the protective layer and substrate layer
It is combined using polyurethane gluing.
5. lithium ion battery special adhesive tape according to claim 1 to 4, which is characterized in that the thickness of the protective layer
It is 3-30 μm.
6. lithium ion battery special adhesive tape according to claim 1 to 4, which is characterized in that the substrate layer upper layer
PET polyester film with a thickness of 5-20 μm, substrate layer lower layer polypropylene film with a thickness of 3-20 μm.
7. lithium ion battery special adhesive tape according to claim 1, which is characterized in that the adhesive layer is resinae hot melt
Pressure-sensitive adhesive, the adhesive layer with a thickness of 10-40 μm.
8. lithium ion battery special adhesive tape according to claim 4, which is characterized in that the thickness of the polyurethane adhesive layer
It is 5-20 μm.
9. a kind of application of lithium ion battery special adhesive tape as described in claim 1 in lithium ion battery, which is characterized in that
The following steps are included:
S1 coremaking: the positive and negative electrode slurry being stirred is respectively coated on corresponding collector, and roll-in cuts, tab welding, folds
Piece/rolling step completes battery core production；
S2 adhesive tape cladding: it is wrapped around lithium ion battery special adhesive tape in battery core outer diaphragm surface entire area；
S3 assembling: the battery core that adhesive tape coats is entered into shell, injection electrolyte, aging, the obtained lithium battery of two envelopes.
10. application of the lithium ion battery special adhesive tape according to claim 9 in lithium ion battery, which is characterized in that
Described to be wrapped around to coat to the region-wide wound form of battery core progress laterally or longitudinally, cladding area accounts for outside the battery core
Layer diaphragm area 70%-100%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811136908.XA CN109554136A (en) | 2018-09-28 | 2018-09-28 | A kind of lithium ion battery special adhesive tape and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811136908.XA CN109554136A (en) | 2018-09-28 | 2018-09-28 | A kind of lithium ion battery special adhesive tape and its application |
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| Publication Number | Publication Date |
|---|---|
| CN109554136A true CN109554136A (en) | 2019-04-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811136908.XA Pending CN109554136A (en) | 2018-09-28 | 2018-09-28 | A kind of lithium ion battery special adhesive tape and its application |
Country Status (1)
| Country | Link |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112259835A (en) * | 2020-09-25 | 2021-01-22 | 深圳市西盟特电子有限公司 | Laminated battery pole core assembly, laminated battery and preparation process |
| CN112795326A (en) * | 2020-12-30 | 2021-05-14 | 江苏天鹏电源有限公司 | Impact-resistant termination adhesive tape for lithium ion battery and manufacturing method thereof |
| CN114024044A (en) * | 2021-11-05 | 2022-02-08 | 珠海冠宇电池股份有限公司 | Battery cell and battery |
| CN114566745A (en) * | 2022-01-28 | 2022-05-31 | 上海兰钧新能源科技有限公司 | Roll up core and battery |
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| CN112795326A (en) * | 2020-12-30 | 2021-05-14 | 江苏天鹏电源有限公司 | Impact-resistant termination adhesive tape for lithium ion battery and manufacturing method thereof |
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| CN114024044B (en) * | 2021-11-05 | 2023-08-18 | 珠海冠宇电池股份有限公司 | Battery cell and battery |
| CN114566745A (en) * | 2022-01-28 | 2022-05-31 | 上海兰钧新能源科技有限公司 | Roll up core and battery |
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