CN203481284U - Aluminum plastic film for battery - Google Patents
Aluminum plastic film for battery Download PDFInfo
- Publication number
- CN203481284U CN203481284U CN201320590559.5U CN201320590559U CN203481284U CN 203481284 U CN203481284 U CN 203481284U CN 201320590559 U CN201320590559 U CN 201320590559U CN 203481284 U CN203481284 U CN 203481284U
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- battery
- plastic film
- aluminum plastic
- aluminium foil
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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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Abstract
The utility model discloses an aluminum plastic film for a battery. The aluminum plastic film comprises a protection layer, an aluminum foil layer and a heat sealing layer which are adhered to one another in sequence as well as an electrolyte adsorption layer arranged on the heat sealing layer, wherein a groove filled with the electrolyte adsorption layer is formed in the side surface, which is back on to the aluminum foil layer, of the heat sealing layer. According to the aluminum plastic film for the battery, the electrolyte adsorption layer is arranged on the heat sealing layer and can adsorb the electrolyte of the battery, so that the electrolyte retaining amount of the battery can be increased, and the performance of the battery is improved; furthermore, gas in the battery can be completely extracted during second-sealing gas extraction of the battery, and the electrolyte of the battery cannot be extracted, so that the hardness of the battery subjected to secondary sealing is improved.
Description
Technical field
The utility model relates to a kind of battery package film, relates in particular to a kind of battery aluminum plastic film.
Background technology
The packaging film that flexible-packed battery is used at present, is mainly aluminum plastic film.The structure sheaf of existing aluminum plastic film has nylon layer, aluminium foil layer and PP(polypropylene successively) layer, when coated, aluminum plastic film is positioned at inner side with PP layer.Yet in existing this kind of aluminum plastic film, PP layer is poor to the adsorptivity of the electrolyte of battery, this makes battery when two envelopes are bled, and the too quickly words of bleeding can be extracted electrolyte out more, affect battery performance; And it is not enough to bleed, cause battery two to be honored as a queen partially soft, difference of hardness.
Utility model content
The technical problems to be solved in the utility model is, a kind of electrolyte that can adsorb battery is provided, and improves the battery aluminum plastic film of inside battery electrolyte recoverable amount.
The utility model solves the technical scheme that its technical problem adopts: a kind of battery aluminum plastic film is provided; comprise bonding successively protective layer, aluminium foil layer and hot sealing layer and be arranged on the electrolyte adsorption layer on described hot sealing layer, described hot sealing layer offers groove to fill described electrolyte adsorption layer on the side of described aluminium foil layer dorsad.
At battery of the present utility model, with in aluminum plastic film, the degree of depth of described groove is less than the thickness of described hot sealing layer, and leaves interval between the edge, described side of described groove surrounding and described hot sealing layer.
At battery of the present utility model, use in aluminum plastic film; this battery also comprises at the first adhesive layer between described protective layer and described aluminium foil layer and the second adhesive layer between described aluminium foil layer and described hot sealing layer with aluminum plastic film; described protective layer is bonding by described the first adhesive layer and described aluminium foil layer, and described hot sealing layer is bonding by described the second adhesive layer and described aluminium foil layer.
At battery of the present utility model, use in aluminum plastic film, the relative two sides of described aluminium foil layer are respectively arranged with the first corrosion-resistant coating and the second corrosion-resistant coating, described the first corrosion-resistant coating is between described aluminium foil layer and described the first adhesive layer, and described the second corrosion-resistant coating is between described aluminium foil layer and described the second adhesive layer.
At battery of the present utility model, with in aluminum plastic film, described protective layer is polyamide laminate film or laminated polyester film.
At battery of the present utility model, with in aluminum plastic film, described hot sealing layer is layer of polypropylene foil or film layer.
Battery aluminum plastic film of the present utility model, by electrolyte adsorption layer is set on hot sealing layer, the electrolyte of adsorbable battery, improves guarantor's liquid measure of battery, and then improves battery performance; And, be beneficial to and when battery two envelopes are bled, inside battery gas taken out to the greatest extent, and can guarantee that the electrolyte of battery is not drawn out of, and improves the hardness that battery two is honored as a queen.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the cross-sectional view of aluminum plastic film for the battery of the utility model one embodiment;
Fig. 2 is the structural representation of hot sealing layer in aluminum plastic film for the battery of the utility model one embodiment.
Embodiment
For technical characterictic of the present utility model, object and effect being had more clearly, understand, now contrast accompanying drawing and describe embodiment of the present utility model in detail.
As shown in Figure 1, 2; the battery aluminum plastic film of the utility model one embodiment; comprise protective layer 1, aluminium foil layer 2, hot sealing layer 3 and electrolyte adsorption layer 4; protective layer 1, aluminium foil layer 2 and hot sealing layer 3 are bonding successively; electrolyte adsorption layer 4 is arranged on hot sealing layer 2; thereby form this battery aluminum plastic film, and by the setting of electrolyte adsorption layer 4 on hot sealing layer 3, improve the ability of the electrolyte of hot sealing layer 3 absorption batteries.
Protective layer 1 can be polyamide laminate film (polyamide film layer) or laminated polyester film, has superior heat resistance, resistance to wear and pliability, as the outer protective layer of aluminum plastic film.Aluminium foil layer 2 is positioned at the inner side of this protective layer 1, as the intermediate layer of aluminum plastic film, has high steam, oxygen obstruction rate and pliability good.And hot sealing layer 3 is as the internal layer of aluminum plastic film, can be layer of polypropylene foil or film layer, have that thermal fluidity is good, envelope and a characteristic such as property is good.
Wherein, hot sealing layer 3 offers groove (not indicating) with filling electrolyte adsorption layer 4 on the side of aluminium foil layer 2 dorsad.The degree of depth of groove is less than the thickness of hot sealing layer 3, makes the groove can penetration heat sealing 3; The thickness of electrolyte adsorption layer 4 is corresponding with the degree of depth of groove.The degree of depth of this groove can be according to electrolyte adsorbance is determined, and when requiring to adsorb more electrolyte, depth of groove setting is larger, and vice versa.And, between groove surrounding and its place hot sealing layer 3 edges, side, leave interval, not affect the packaging effect of battery.Concrete width, the length of groove can be determined according to battery size, and the width of electrolyte adsorption layer 4, length are determined by width, the length of groove.
This battery also comprises the first adhesive layer 5 and the second adhesive layer 6 with aluminum plastic film; Wherein, the first adhesive layer 5 is between protective layer 1 and aluminium foil layer 2, and protective layer 1 is bonding with aluminium foil layer 2 by this first adhesive layer 5; The second adhesive layer 6 is between aluminium foil layer 2 and hot sealing layer 3, and hot sealing layer 3 is bonding with aluminium foil layer 2 by this second adhesive layer 6.The first adhesive layer 5 and the second adhesive layer 6 all adopt corrosion resistance, pliability heat-resistant polymer material to form, for example the linear polymer of hot setting adhesive or thermoplasticity and hot setting adhesive.The material that the first adhesive layer 5 and the second adhesive layer 6 adopt can be identical or different.
Further, the relative two sides of aluminium foil layer 2 are also respectively arranged with the first corrosion-resistant coating 7 and the second corrosion-resistant coating 8, the first corrosion-resistant coatings 7 between aluminium foil layer 2 and the first adhesive layer 5, and the second corrosion-resistant coating 8 is between aluminium foil layer 2 and the second adhesive layer 6.The first corrosion-resistant coating 7 and the second corrosion-resistant coating 8 are formed on the two sides of aluminium foil layer 2 by the material of tool decay resistance, for example adopt the polymer of tool decay resistance to be dissolved in ethyl acetate or acetone equal solvent and make solution, then by methods such as printing, dip-coating, transfer coated, blade coating or extrusion coated, on the two sides of aluminium foil layer 2, apply, to form corrosion-resistant coating.The first corrosion-resistant coating 7 and the second corrosion-resistant coating 8 have iris action, improve the resistance to corrosion of aluminium foil layer 2, prevent the corrosion of electrolyte permeability to aluminium foil layer 2.
When this aluminum plastic film applies on battery; protective layer 1 conduct of this aluminum plastic film is outer away from electrolyte; hot sealing layer 3 can contact with the electrolyte of battery as internal layer; and there is suction-operated by 4 pairs of electrolyte of electrolyte adsorption layer; improve the recoverable amount of inside battery electrolyte, and then can improve battery performance.Use the battery of this aluminum plastic film when two envelopes are bled, can fully to inside battery gas, aspirate, to take out most inside battery gas, because hot sealing layer 3 is provided with the adsorbable electrolyte of electrolyte adsorption layer 4, therefore in pumping process, electrolyte can not extracted out, guarantee the recoverable amount of inside battery electrolyte, improve the hardness that battery two is honored as a queen.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model specification and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (6)
1. a battery aluminum plastic film; it is characterized in that; comprise bonding successively protective layer (1), aluminium foil layer (2) and hot sealing layer (3) and be arranged on the electrolyte adsorption layer (4) on described hot sealing layer (3), described hot sealing layer (3) offers groove to fill described electrolyte adsorption layer (4) on the side of described aluminium foil layer (2) dorsad.
2. battery aluminum plastic film according to claim 1, is characterized in that, the degree of depth of described groove is less than the thickness of described hot sealing layer (3), and leaves interval between described groove surrounding and the edge, described side of described hot sealing layer (3).
3. battery aluminum plastic film according to claim 1; it is characterized in that; this battery with aluminum plastic film also comprise be positioned at the first adhesive layer (5) between described protective layer (1) and described aluminium foil layer (2) and be positioned at described aluminium foil layer (2) and described hot sealing layer (3) between the second adhesive layer (6); described protective layer (1) is bonding by described the first adhesive layer (5) and described aluminium foil layer (2), and described hot sealing layer (3) is bonding by described the second adhesive layer (6) and described aluminium foil layer (2).
4. battery aluminum plastic film according to claim 3, it is characterized in that, the relative two sides of described aluminium foil layer (2) are respectively arranged with the first corrosion-resistant coating (7) and the second corrosion-resistant coating (8), described the first corrosion-resistant coating (7) is positioned between described aluminium foil layer (2) and described the first adhesive layer (5), and described the second corrosion-resistant coating (8) is positioned between described aluminium foil layer (2) and described the second adhesive layer (6).
5. according to the battery aluminum plastic film described in claim 1-4 any one, it is characterized in that, described protective layer (1) is polyamide laminate film or laminated polyester film.
6. according to the battery aluminum plastic film described in claim 1-4 any one, it is characterized in that, described hot sealing layer (3) is layer of polypropylene foil or film layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320590559.5U CN203481284U (en) | 2013-09-22 | 2013-09-22 | Aluminum plastic film for battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320590559.5U CN203481284U (en) | 2013-09-22 | 2013-09-22 | Aluminum plastic film for battery |
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| Publication Number | Publication Date |
|---|---|
| CN203481284U true CN203481284U (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320590559.5U Expired - Lifetime CN203481284U (en) | 2013-09-22 | 2013-09-22 | Aluminum plastic film for battery |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109318550A (en) * | 2018-09-05 | 2019-02-12 | 上海恩捷新材料科技有限公司 | A kind of plastic-aluminum membrane structure |
| CN109585703A (en) * | 2017-09-28 | 2019-04-05 | 苏州柯莱美高分子材料科技有限公司 | A kind of lithium battery magnesium lithium alloy composite plastic film and preparation method thereof |
| CN111640883A (en) * | 2020-05-27 | 2020-09-08 | 广东博力威科技股份有限公司 | Aluminum plastic film and flexible package battery |
| CN114497704A (en) * | 2022-02-17 | 2022-05-13 | 宁德新能源科技有限公司 | Electrochemical device and electronic device |
-
2013
- 2013-09-22 CN CN201320590559.5U patent/CN203481284U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109585703A (en) * | 2017-09-28 | 2019-04-05 | 苏州柯莱美高分子材料科技有限公司 | A kind of lithium battery magnesium lithium alloy composite plastic film and preparation method thereof |
| CN109318550A (en) * | 2018-09-05 | 2019-02-12 | 上海恩捷新材料科技有限公司 | A kind of plastic-aluminum membrane structure |
| CN111640883A (en) * | 2020-05-27 | 2020-09-08 | 广东博力威科技股份有限公司 | Aluminum plastic film and flexible package battery |
| CN114497704A (en) * | 2022-02-17 | 2022-05-13 | 宁德新能源科技有限公司 | Electrochemical device and electronic device |
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