WO2014185605A1 - 이차전지용 알루미늄 파우치 필름, 이를 포함하는 포장재, 이를 포함하는 이차전지 및 이의 제조방법 - Google Patents
이차전지용 알루미늄 파우치 필름, 이를 포함하는 포장재, 이를 포함하는 이차전지 및 이의 제조방법 Download PDFInfo
- Publication number
- WO2014185605A1 WO2014185605A1 PCT/KR2013/009962 KR2013009962W WO2014185605A1 WO 2014185605 A1 WO2014185605 A1 WO 2014185605A1 KR 2013009962 W KR2013009962 W KR 2013009962W WO 2014185605 A1 WO2014185605 A1 WO 2014185605A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- aluminum
- layer
- pouch film
- resin layer
- secondary battery
- Prior art date
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- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present invention relates to an aluminum pouch film for a secondary battery and a method for manufacturing the same, and more particularly, compared to the conventional technology, in spite of omitting an aluminum surface treatment step with respect to a conventional secondary battery pouch film.
- the present invention relates to the production of an aluminum pouch film for secondary batteries in which electrolyte resistance and insulation are maintained.
- Secondary batteries generally refer to lithium secondary batteries, and are used in electric vehicles including portable terminal devices such as laptops, smartphones, tablet PCs, video cameras, and hybrid vehicles, and smart grids for energy storage. At the same time, research is being conducted to overcome various environmental factors such as harsh thermal environment and mechanical impact.
- a packaging material used for such a lithium battery unlike a can-type packaging material used from a conventional packaging material, a multi-layer structure (for example, an inner resin layer, an aluminum layer, and an exterior) can be obtained from the advantage that the shape of the battery can be freely modified.
- a secondary battery pouch is used as the packaging material consisting of a resin layer).
- Commonly used pouch films for secondary batteries have a thermal adhesiveness sequentially, such as polyethylene (PE), unstretched polypropylene (cPP), or polypropylene (poly propylene, PP), which act as a sealing agent.
- An internal resin layer composed of an adhesive layer made of polyolefin or a copolymer thereof, a base material for maintaining mechanical strength, and an aluminum layer which is a metal foil layer serving as a barrier layer of moisture and oxygen, and a polyethylene for protecting the battery cell from external impact.
- Multi-layered film in which functional polymer films such as terephthalate (PET) resin, polyethylene naphthalate (PEN), nylon (Nylon) resin, or liquid crystal polymer (LCP) form an outer resin layer It is composed of a structure.
- Pouch-type secondary battery may have flexibility in form, there is an advantage that can implement a secondary battery of the same capacity with a smaller volume and mass.
- the pouch type uses a soft pouch as a container, and may be damaged for various reasons in various processes. For example, in the process of accommodating the electrode assembly in the pouch, protrusions such as electrode tabs and electrode leads may damage the PP and CPP layers inside the pouch, such as cracks. The layer is exposed, in which case a side reaction occurs due to the reactivity with the electrolyte.
- the aluminum layer exposed to the electrolyte may be corroded by causing a chemical reaction with the electrolyte or oxygen or moisture infiltrated or diffused into the battery, and a swelling phenomenon in which the corrosive gas is generated to expand the inside of the battery is generated.
- LiPF 6 may react with water and oxygen to produce hydrofluoric acid (HF), which is a corrosive gas.
- HF hydrofluoric acid
- Such hydrofluoric acid may cause rapid exothermic reaction by reacting with aluminum, and adsorbed onto the surface of aluminum as a secondary reaction and penetrating into the tissue.
- lithium may react with the atmosphere to cause ignition. Therefore, in order to prevent contact with aluminum even when corrosive hydrofluoric acid is produced as described above, various aluminum surface modification techniques have been studied.
- a method of carrying out a chemical conversion treatment on aluminum foil is known as in Korean Laid-Open Publication No. 10-2001-7010231, and a chromate treatment is mentioned as an example of the chemical conversion treatment.
- chromate treatment methods such as a chromate treatment by an application type chromate treatment or an immersion method.
- the material using hexavalent chromium as a main component has a good function, but as an environmental aspect, it is treated for environmental preservation with Cd, Pb, Hg, etc., which is a toxic environmental pollutant harmful to humans and living organisms.
- Cd, Pb, Hg, etc. is a toxic environmental pollutant harmful to humans and living organisms.
- a step of performing an immersion treatment with an acid or an alkali and performing degreasing and etching should be provided during the manufacturing process. Since it is the slowest stage, it is necessary to find a way to maintain the performance as a secondary battery packaging material while omitting the aluminum surface treatment process.
- the present invention is to solve the above problems, in the aluminum pouch manufacturing process, by eliminating the aluminum surface treatment process, while promoting eco-friendly and economical benefits, while the battery is exposed to physical, chemical, shock or electrical stress Even if the crack of the adhesive layer inside the pouch is suppressed, the object of the present invention is to provide a method for producing a secondary battery aluminum pouch film excellent in moldability, insulation and electrolyte resistance.
- the present invention is an aluminum layer; An outer resin layer formed on the first surface of the aluminum layer; A first adhesive layer bonding the aluminum and the outer resin layer to each other; An inner resin layer formed on the second surface of the aluminum layer; And it provides a secondary battery aluminum pouch film comprising a second adhesive layer for bonding the aluminum layer and the internal resin layer.
- the present invention comprises the steps of a) preparing an aluminum layer; b) forming an outer resin layer on the first surface of the aluminum layer; c) preparing an inner resin layer; And d) adhering the inner resin layer to the second surface of the aluminum layer, wherein the adhering the inner resin layer comprises a monomer having one side modified with silicate or phosphate to form the end of the chain. It provides a method for producing a secondary battery aluminum pouch film, characterized in that using an adhesive containing.
- the present invention comprises the steps of a) preparing an aluminum layer; b) forming an outer resin layer on the first surface of the aluminum layer; c) forming a copolymer layer on the second surface of the aluminum layer; And d) provides a method for producing a secondary battery aluminum pouch film comprising the step of forming an inner resin layer on the copolymer layer.
- the present invention provides a packaging material comprising an aluminum pouch film for secondary batteries.
- the present invention provides a secondary battery comprising an aluminum pouch film for secondary batteries.
- the aluminum layer is a chemical reaction with the electrolyte Since the gas can be prevented from occurring, it is possible to reduce the risk of gas generated inside the battery, causing the battery to expand, or exploding by a high temperature.
- the aluminum surface treatment process is the most time-consuming process of aluminum pouch production process because it is coated with the film by applying an adhesive containing a part of a special monomer whose monomer component is modified without going through chemical surface treatment of aluminum foil. Since it can be omitted, it may be preferable in terms of environment-friendly, economical.
- FIG. 1 is a view showing the structure of an aluminum pouch film for secondary batteries according to an embodiment of the present invention.
- FIG. 2 is a view showing the structure of an aluminum pouch film for secondary batteries according to another embodiment of the present invention.
- FIG. 3 is a schematic diagram showing a mechanism according to a preferred embodiment of the present invention.
- an aluminum pouch film for a secondary battery includes an aluminum layer 3, an outer resin layer 1 formed on a first surface of the aluminum layer, the aluminum layer, and the outer resin layer as shown in FIG. 1. It consists of a first adhesive layer (2) for adhering the resin, an inner resin layer (5) formed on the second surface of the aluminum layer, and a second adhesive layer (4) for adhering the aluminum layer and the inner resin layer. There is a strong bond between the aluminum layer and the second adhesive layer 4 by the SiO 2 group or the phosphate group of the adhesive layer.
- an aluminum pouch film for a secondary battery includes an aluminum layer (3), an outer resin layer (1) formed on a first surface of the aluminum layer, and the aluminum layer and the outer layer as shown in FIG.
- the aluminum layer (3) is preferably a soft aluminum foil, more preferably, in order to further impart the moldability of the aluminum foil, aluminum containing iron Use a gourd.
- the aluminum foil containing iron preferably 0.1 to 9.0% by mass, and more preferably 0.5 to 2.0% by mass, with respect to 100 mass of the entire aluminum foil.
- the aluminum foil used for the aluminum layer can be etched or degreased on the surface in order to improve adhesion to the inner resin layer, but may be omitted to reduce the process speed.
- the thickness of the aluminum layer is preferably 10 to 100 ⁇ m, more preferably 30 to 50 ⁇ m in consideration of workability, oxygen, and moisture barrier properties. If the above range is not satisfied, it is easily torn when less than 10 ⁇ m, so that the electrolytic resistance and insulation are inferior, and when it exceeds 100 ⁇ m, moldability is inferior.
- the outer resin layer 1 corresponds to a portion in direct contact with hardware
- the outer resin layer 1 is preferably a resin having insulation. Therefore, as the resin used as the outer resin layer, polyester resins such as polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polybutylene naphthalate, copolymerized polyester, polycarbonate, or nylon films are used. It is preferable to use a nylon film, in particular. In the case of the nylon film is not only excellent in burst strength, pinhole resistance, gas barrier property, etc., but also excellent in heat resistance, cold resistance, and mechanical strength, and thus is mainly used as a packaging film.
- the nylon film include polyamide resins, that is, nylon 6, nylon 66, copolymers of nylon 6 and nylon 66, nylon 610, polymethacylylene amidamide (MXD6), and the like.
- the thickness of the laminated outer resin layer is preferably 10 to 30 ⁇ m or more, and particularly preferably 12 to 25 ⁇ m. If the above range is not satisfied, the physical property is less than 10 ⁇ m, so that the physical property is easily torn off, and if it exceeds 30 ⁇ m, the moldability is poor.
- a polyurethane-based adhesive containing a polyol component as a main component and further including an isocyanate compound or a derivative thereof as a curing agent component can be used. It is preferable that it is 2-10 micrometers, and, as for the said 1st contact bonding layer in consideration of adhesiveness with an outer resin layer, thickness after shaping
- a polyolefin such as polyethylene (PE) or polypropylene (poly propylene, PP) or a copolymer thereof may be used as the inner resin layer.
- the polymer layer is preferable because it has not only physical properties required as a packaging material for secondary batteries such as good heat sealability, moisture resistance and heat resistance, but also good workability such as lamination. Do.
- the thickness of the polymer layer of the inner resin layer is preferably 20 to 60 ⁇ m, more preferably 30 to 50 ⁇ m in consideration of moldability, insulation, electrolyte resistance, and the like. If the above range is not satisfied, problems may arise in that moldability, insulation property, and electrolyte resistance become poor.
- the second adhesive layer includes a monomer component on one side of which is modified with a silicate or phosphate group to form the end of the chain, in addition to polyester, polyether, Adhesives including any one or more of polyurethane-based, polyester-urethane-based, polyolefin-based, polyethyleneimine-based, cyanoacrylate-based, isocyanate-based, imide-based, silicone-based resins or modified substances thereof and mixtures thereof can be used.
- the second adhesive layer of the present invention comprises a monomer component which is modified on one side with a silicate or phosphate group to form the end of the chain, when the aluminum adhesive layer comes into contact with the aluminum thin layer, SiO 2 of the aluminum thin layer and the silicate is copolymerized. Or PO 4 2- of the phosphate group forms a strong bond.
- the adhesion is further improved, and since the silicate or phosphate adhesive layer performs the chemical surface treatment of the aluminum surface, penetration from the electrolyte solution is suppressed, and thus the electrolyte resistance can be improved. Therefore, the aluminum pouch film for secondary batteries of the present invention omits the surface treatment of aluminum, unlike the prior art, since the one side includes an adhesive containing a monomer that forms the end of the chain by modifying the silicate or phosphate group. Even if it does, the performance of electrolytic resistance and adhesiveness does not fall.
- the second adhesive layer is preferably 2 to 30 ⁇ m, more preferably 3 to 15 ⁇ m in consideration of adhesion to the internal resin layer, thickness after molding, and the like.
- laminating the inner resin layer and the aluminum layer on the second adhesive layer there is no particular limitation, but preferably, it may be laminated by lamination using a dry lamination method or an extrusion lamination method.
- the copolymer layer may be a copolymer comprising a monomer composed of a hydroxy group on one side and a phosphate, and preferably VPA (Vinyl Phosphonic Acid). And one or more copolymers of AA (Acrulic Acid) can be used.
- VPA Vinyl Phosphonic Acid
- AA Aclic Acid
- the aluminum pouch film for secondary batteries of this invention contains the said copolymer layer, although the aluminum chromate surface treatment which is a prior art is omitted, the performance of electrolytic resistance and adhesiveness does not fall.
- the copolymer layer is preferably 2 to 30 ⁇ m, more preferably 3 to 10 ⁇ m in consideration of adhesion to the internal resin layer, thickness after molding, and the like. If the above range is not satisfied, the adhesiveness and the electrolyte resistance are inferior in the case of less than 2 ⁇ m, and the flexibility of the film may be in the case of exceeding 30 ⁇ m.
- the present invention comprises the steps of a) preparing an aluminum layer; b) forming an outer resin layer on the first surface of the aluminum layer; c) preparing an inner resin layer including a crosslinked polymer layer; And d) adhering the inner resin layer to the second surface of the aluminum layer, wherein the adhering the inner resin layer comprises monomers having one side modified with silicate to form the end of the chain. It can be prepared using an adhesive.
- the present invention can provide a packaging material comprising the aluminum pouch film for secondary batteries.
- the present invention can provide a secondary battery comprising the aluminum pouch film for secondary batteries.
- the aluminum pouch film for secondary batteries of this invention is demonstrated further more concretely by an Example.
- An aluminum foil manufactured by Equal Aluminum Co., Ltd. having a thickness of 40 ⁇ m was slitted to have an area of 30 cm ⁇ 20 cm, and then washed with water to remove dust from the surface.
- a 4 ⁇ m-thick polyurethane adhesive resin manufactured by Hichem Co., Ltd.
- nylon 6 manufactured by Hyosung Co., Ltd.
- the nylon layer was laminated on the aluminum layer, and then aged at 40 ° C. for 7 days.
- a monomer (manufactured by Rhodia) on which a single chain of the polyol was modified with a SiO 2 group on a polyurethane base (manufactured by Mitsui) was 70: After applying the adhesive mixed at 30 to 4 ⁇ m thickness, polypropylene (manufactured by Okamoto Co., Ltd.) of 40 ⁇ m thickness was laminated by laminating polypropylene on aluminum, and then aged at 40 °C for 5 days.
- An aluminum foil manufactured by Equal Aluminum Co., Ltd. having a thickness of 40 ⁇ m was slitted to have an area of 30 cm ⁇ 20 cm, and then washed with water to remove dust from the surface.
- a 5: 1 mixture of VPA (Vinyl Phosphonic Acid) (Rhodia) and AA (Acrylic Acid) was applied to a thickness of 5 ⁇ m, and then 3 at 120 ° C. Daily heat treatment was performed.
- a 4 ⁇ m-thick polyurethane adhesive resin manufactured by Hichem Co., Ltd.
- a 4 ⁇ m-thick polyurethane adhesive resin manufactured by Hichem Co., Ltd.
- the nylon 6 manufactured by Hyosung Co., Ltd.
- the nylon was laminated on the aluminum layer, and then aged at 40 ° C. for 7 days.
- a polyurethane adhesive manufactured by Mitsui
- a polyurethane adhesive manufactured by Mitsui
- 40 ⁇ m thick polypropylene manufactured by Okamoto Dry lamination was performed to laminate polypropylene on aluminum and then aged at 40 ° C. for 5 days.
- An aluminum foil manufactured by Equal Aluminum Co., Ltd. having a thickness of 40 ⁇ m was slitted to have an area of 30 cm ⁇ 20 cm, and then washed with water to remove dust from the surface.
- a monomer (manufactured by Rhodia) on one side of the polyol was modified with a phosphate group on a polyurethane base (manufactured by Mitsui) to laminate the inner resin layer on the second surface of the aluminum foil.
- polypropylene (manufactured by Okamoto Co., Ltd.) of 40 ⁇ m thickness was laminated by laminating polypropylene on aluminum, and then aged at 40 °C for 5 days.
- An aluminum foil manufactured by Equal Aluminum Co., Ltd. having a thickness of 40 ⁇ m was slitted to have an area of 30 cm ⁇ 20 cm, and then washed with water to remove dust from the surface.
- a 4 ⁇ m-thick polyurethane adhesive resin manufactured by Hichem Co., Ltd.
- nylon 6 manufactured by Hyosung Co., Ltd.
- the nylon layer was laminated on the aluminum layer, and then aged at 40 ° C. for 7 days.
- An aluminum foil (manufactured by Equal Aluminum Co., Ltd.) having a thickness of 40 ⁇ m was slitted to have an area of 30 cm ⁇ 20 cm, and then washed with water to remove dust from the surface. Subsequently, the washed aluminum foil was immersed in 5% sulfuric acid solution and then degreased, and then the surface was activated by immersion in 5% sodium hydroxide solution. Then, aluminum foil was immersed in an immersion liquid containing aluminum trivalent chromium coating agent (manufactured by ATOTECH Co., Ltd.) and subjected to chemical treatment for 5 minutes.
- a 4 ⁇ m-thick polyurethane adhesive resin manufactured by Hichem Co., Ltd.
- nylon 6 manufactured by Hyosung Co., Ltd.
- the nylon layer was laminated on the aluminum layer, and then aged at 40 ° C. for 7 days.
- An aluminum foil manufactured by Equal Aluminum Co., Ltd. having a thickness of 40 ⁇ m was slitted to have an area of 30 cm ⁇ 20 cm, and then washed with water to remove dust from the surface.
- a 4 ⁇ m-thick polyurethane adhesive resin manufactured by Hichem Co., Ltd.
- nylon 6 manufactured by Hyosung Co., Ltd.
- the nylon layer was laminated on the aluminum layer, and then aged at 40 ° C. for 7 days.
- a polyurethane adhesive manufactured by Mitsui
- a polyurethane adhesive manufactured by Mitsui
- a thickness of 4 ⁇ m was applied at a thickness of 4 ⁇ m, followed by dry laminating of polypropylene having a thickness of 40 ⁇ m (manufactured by Okamoto).
- Polypropylene was laminated on aluminum and then aged at 40 ° C. for 5 days.
- An aluminum foil (manufactured by Equal Aluminum Co., Ltd.) having a thickness of 40 ⁇ m was slitted to have an area of 30 cm ⁇ 20 cm, and then washed with water to remove dust from the surface. Subsequently, the washed aluminum foil was immersed in 5% sulfuric acid solution and then degreased, and then the surface was activated by immersion in 5% sodium hydroxide solution. Thereafter, aluminum foil was immersed in an immersion liquid containing aluminum trivalent chromium coating agent (manufactured by ATOTECH Co., Ltd.) and subjected to chemical treatment for 5 minutes.
- aluminum trivalent chromium coating agent manufactured by ATOTECH Co., Ltd.
- a 4 ⁇ m-thick polyurethane adhesive resin manufactured by Hichem Co., Ltd.
- nylon 6 manufactured by Hyosung Co., Ltd.
- the nylon layer was laminated on the aluminum layer, and then aged at 40 ° C. for 7 days.
- An aluminum foil manufactured by Equal Aluminum Co., Ltd. having a thickness of 40 ⁇ m was slitted to have an area of 30 cm ⁇ 20 cm, and then washed with water to remove dust from the surface.
- a 4 ⁇ m-thick polyurethane adhesive resin manufactured by Hichem Co., Ltd.
- nylon 6 manufactured by Hyosung Co., Ltd.
- the nylon layer was laminated on the aluminum layer, and then aged at 40 ° C. for 7 days.
- An aluminum foil (manufactured by Equal Aluminum Co., Ltd.) having a thickness of 40 ⁇ m was slitted to have an area of 30 cm ⁇ 20 cm, and then washed with water to remove dust from the surface. Subsequently, the washed aluminum foil was immersed in 5% sulfuric acid solution and then degreased, and then the surface was activated by immersion in 5% sodium hydroxide solution. Thereafter, aluminum foil was immersed in an immersion liquid containing aluminum trivalent chromium coating agent (manufactured by ATOTECH Co., Ltd.) and subjected to chemical treatment for 5 minutes.
- aluminum trivalent chromium coating agent manufactured by ATOTECH Co., Ltd.
- a 4 ⁇ m-thick polyurethane adhesive resin manufactured by Hichem Co., Ltd.
- nylon 6 manufactured by Hyosung Co., Ltd.
- the nylon layer was laminated on the aluminum layer, and then aged at 40 ° C. for 7 days.
- the aluminum pouch films for secondary batteries according to Examples 1 and 3, Comparative Examples 1 to 2, and Comparative Examples 5 to 6 were each molded into 3 cm ⁇ 5 cm ⁇ 0.62 cm (width ⁇ length ⁇ thickness) to form an electrode assembly of a positive electrode, a separator, and a negative electrode. After filling with LiPF6 electrolyte (manufactured by Leechem Co., Ltd.) and sealing and storing at 85 ° C. for 24 hours, it was measured whether the electrode and the aluminum layer of the upper surface were artificially exposed and electrically insulated (1 M ⁇ or more).
- LiPF6 electrolyte manufactured by Leechem Co., Ltd.
- the aluminum pouch films for secondary batteries according to Example 2 and Comparative Examples 3 and 4 were molded into 20 cm x 1.5 cm (width x length), respectively, and the adhesion strength between the inner resin layer and the aluminum layer was measured by a texture analyzer of Stable Micro Systems. It was.
- Example 2 has a higher adhesion than Comparative Example 3, which does not include a copolymer layer, it can be seen that it has an excellent adhesion than Comparative Example 4 subjected to a separate chemical conversion treatment.
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Abstract
Description
4시간 | 8시간 | 12시간 | 16시간 | 20시간 | 24시간 | |
실시예 1 | ○ | ○ | ○ | ○ | ○ | ○ |
실시예 2 | ○ | ○ | ○ | ○ | ○ | ○ |
실시예 3 | ○ | ○ | ○ | ○ | ○ | ○ |
비교예 1 | ○ | △ | △ | × | × | × |
비교예 2 | ○ | ○ | ○ | ○ | ○ | ○ |
비교예 3 | ○ | △ | △ | × | × | × |
비교예 4 | ○ | ○ | ○ | ○ | ○ | ○ |
비교예 5 | ○ | △ | △ | × | × | × |
비교예 6 | ○ | ○ | ○ | ○ | ○ | ○ |
절연성 평가 | |
실시예 1 | ≥1㏁ |
실시예 3 | ≥1㏁ |
비교예 1 | <1㏁ |
비교예 2 | ≥1㏁ |
비교예 5 | <1㏁ |
비교예 6 | ≥1㏁ |
접착성 평가 | |
실시예 2 | ◎ |
비교예 3 | △ |
비교예 4 | ○ |
Claims (20)
- 알루미늄층;상기 알루미늄층의 제 1표면에 형성되는 외부수지층;상기 알루미늄과 상기 외부수지층을 접착시키는 제 1접착층;상기 알루미늄 층의 제 2표면에 형성되는 내부수지층; 및상기 알루미늄층과 상기 내부 수지층을 접착시키는 제 2접착층을 포함하는 이차전지용 알루미늄 파우치 필름.
- 청구항 1에 있어서,상기 알루미늄층과 상기 제 2접착층 사이에 형성되는 공중합체층을 더 포함하는 것을 특징으로 하는 이차전지용 알루미늄 파우치 필름.
- 청구항 1에 있어서,상기 제 2접착층은 한쪽이 규산염으로 개질되어 사슬의 마지막을 구성하고 있는 모노머를 포함하는 것을 특징으로 하는 이차전지용 알루미늄 파우치 필름.
- 청구항 1에 있어서,상기 제 2접착층은 한쪽이 인산염그룹으로 개질되어 사슬의 마지막을 구성하고 있는 모노머를 포함하는 것을 특징으로 하는 이차전지용 알루미늄 파우치 필름.
- 청구항 2에 있어서,상기 공중합체층은 한쪽이 인산염 그룹으로 개질된 모노머를 포함하는 것을 특징으로 하는 이차전지용 알루미늄 파우치 필름.
- 청구항 5에 있어서,상기 모노머는 다른 한쪽이 하이드록시기로 개질된 모노머를 포함하는 것을 특징으로 하는 이차전지용 알루미늄 파우치 필름.
- 청구항 5에 있어서,상기 모노머는 VPA(Vinyl Phosphonic Acid) 및 AA(Acrulic Acid) 중 어느 하나 이상을 사용하는 것을 특징으로 하는 이차전지용 알루미늄 파우치 필름.
- 청구항 3 또는 청구항 4에 있어서,상기 모노머는 상기 제 2접착층 전체에 대하여 10 내지 30 질량%로 포함되는 것을 특징으로 하는 이차전지용 알루미늄 파우치 필름.
- 청구항 1에 있어서,상기 제 2접착제층은 폴리에스테르계, 폴리에테르계, 폴리우레탄계, 폴리에스테르우레탄계, 폴리올레핀계, 폴리에틸렌이민계, 시아노아크릴레이트계, 이소시아네이트계, 이미드계, 실리콘계 수지 또는 이들의 변성물 및 이들의 혼합물 중 어느 하나 이상을 포함하는 것을 특징으로 하는 이차전지용 알루미늄 파우치 필름.
- 청구항 1에 있어서,상기 외부수지층은 폴리에틸렌테레프탈레이트, 폴리부틸렌테레프타레이트, 폴리에틸렌나프탈레이트, 폴리부틸렌나프탈레이트, 공중합 폴리에스테르, 폴리카보네이트 및 나일론필름으로 이루어진 군으로부터 선택되는 어느 하나 이상인 것을 특징으로 하는 이차전지용 알루미늄 파우치 필름.
- 청구항 10에 있어서,상기 나일론 필름은 나일론6, 나일론66, 나일론6과 나일론66과의 공중합체, 나일론610, 폴리메타키실린렌 아미파미드(MXD6)으로 이루어진 군으로부터 선택되는 어느 하나 이상인 것을 특징으로 하는 이차전지용 알루미늄 파우치 필름.
- 청구항 1에 있어서,상기 제 1접착제 층은 폴리올 성분을 포함하고, 이소시아네이트화합물 또는 그 유도체를 경화제 성분으로 더 포함하는 폴리우레탄계 접착제로 구성되는 것을 특징으로 하는 이차전지용 알루미늄 파우치 필름.
- 청구항 1에 있어서,상기 내부수지층은 폴리올레핀 또는 폴리올레핀의 공중합체를 사용하는 것을 특징으로 하는 이차전지용 알루미늄 파우치 필름.
- 청구항 13에 있어서,상기 폴리올레핀은 폴리에틸렌(poly ethylene, PE) 또는 폴리프로필렌(poly propylene, PP)인 것을특징으로 하는 이차전지용 알루미늄 파우치 필름.
- a) 알루미늄 층을 준비하는 단계;b) 상기 알루미늄층의 제1 표면에 외부수지층을 형성시키는 단계;c) 내부수지층을 준비하는 단계; 및d) 상기 알루미늄층의 제2 표면에 상기 내부수지층을 접착하는 단계를 포함하고,상기 내부수지층을 접착하는 단계는 한쪽면이 규산염 또는 인산염으로 개질되어 사슬의 마지막을 구성하고 있는 모노머를 포함하는 접착제를 사용하는 것을 특징으로 하는 이차전지용 알루미늄 파우치 필름의 제조방법.
- a) 알루미늄 층을 준비하는 단계;b) 상기 알루미늄 층의 제 1표면에 외부수지층을 형성시키는 단계;c) 상기 알루미늄 층의 제 2표면에 공중합체층을 형성하는 단계; 및d) 상기 공중합체층 상에 내부수지층을 형성하는 단계를 포함하는 이차전지용 알루미늄 파우치 필름의 제조방법.
- 청구항 16에 있어서,상기 공중합체층은 한쪽면이 인산염 그룹으로 개질된 모노머를 포함하는 것을 특징으로 하는 이차전지용 알루미늄 파우치 필름의 제조방법.
- 청구항 17에 있어서,상기 모노머는 다른 한쪽면이 하이드록시기로 개질된 모노머를 포함하는 것을 특징으로 하는 이차전지용 알루미늄 파우치 필름의 제조방법.
- 청구항 1의 이차전지용 알루미늄 파우치 필름을 포함하는 포장재.
- 청구항 1의 이차전지용 알루미늄 파우치 필름을 포함하는 이차전지.
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CN201380076556.2A CN105229817A (zh) | 2013-05-13 | 2013-11-05 | 二次电池的铝软包膜,包括其的包装材料、二次电池,及其制法 |
EP13884788.4A EP2999022A4 (en) | 2013-05-13 | 2013-11-05 | ALUMINUM ENVELOPE FILM FOR SECONDARY BATTERY, PACKING MATERIAL COMPRISING SAME, SECONDARY BATTERY COMPRISING SAME, AND MANUFACTURING METHOD THEREOF |
US14/890,794 US20160087250A1 (en) | 2013-05-13 | 2013-11-05 | Aluminium pouch film for secondary battery, packaging material comprising same, secondary battery comprising same, and manufacturing method therefor |
JP2016513854A JP2016522968A (ja) | 2013-05-13 | 2013-11-05 | 二次電池用アルミニウムパウチフィルム、これを含む包装材、これを含む二次電池およびその製造方法 |
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KR10-2013-0054016 | 2013-05-13 | ||
KR20130054015A KR101485523B1 (ko) | 2013-05-13 | 2013-05-13 | 이차전지용 알루미늄 파우치 필름, 이를 포함하는 포장재, 이를 포함하는 이차전지 및 이의 제조방법 |
KR10-2013-0054017 | 2013-05-13 | ||
KR1020130054016A KR101381598B1 (ko) | 2013-05-13 | 2013-05-13 | 이차전지용 알루미늄 파우치 필름, 이를 포함하는 포장재, 이를 포함하는 이차전지 및 이의 제조방법 |
KR10-2013-0054015 | 2013-05-13 | ||
KR1020130054017A KR101454417B1 (ko) | 2013-05-13 | 2013-05-13 | 이차전지용 알루미늄 파우치 필름, 이를 포함하는 포장재, 이를 포함하는 이차전지 및 이의 제조방법 |
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US (1) | US20160087250A1 (ko) |
EP (1) | EP2999022A4 (ko) |
JP (1) | JP2016522968A (ko) |
CN (1) | CN105229817A (ko) |
WO (1) | WO2014185605A1 (ko) |
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Also Published As
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CN105229817A (zh) | 2016-01-06 |
EP2999022A1 (en) | 2016-03-23 |
US20160087250A1 (en) | 2016-03-24 |
EP2999022A4 (en) | 2016-05-18 |
JP2016522968A (ja) | 2016-08-04 |
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