CN103872267A - Flexible packaging lithium ion battery and stamping die for aluminum-plastic film housing of same - Google Patents
Flexible packaging lithium ion battery and stamping die for aluminum-plastic film housing of same Download PDFInfo
- Publication number
- CN103872267A CN103872267A CN201210547965.3A CN201210547965A CN103872267A CN 103872267 A CN103872267 A CN 103872267A CN 201210547965 A CN201210547965 A CN 201210547965A CN 103872267 A CN103872267 A CN 103872267A
- Authority
- CN
- China
- Prior art keywords
- plastic film
- aluminum plastic
- punching press
- stamping head
- battery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002985 plastic film Substances 0.000 title claims abstract description 66
- 229920006255 plastic film Polymers 0.000 title claims abstract description 66
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 20
- 238000009459 flexible packaging Methods 0.000 title abstract 2
- 238000004080 punching Methods 0.000 claims description 64
- 229910052782 aluminium Inorganic materials 0.000 claims description 63
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 62
- 238000012856 packing Methods 0.000 claims description 10
- 230000007704 transition Effects 0.000 claims description 8
- 238000005538 encapsulation Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000009966 trimming Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 241000209202 Bromus secalinus Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000012785 packaging film Substances 0.000 description 1
- 229920006280 packaging film Polymers 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses a flexible packaging lithium ion battery, and a stamping die for an aluminum-plastic film housing of the lithium ion battery, and particularly relates to the stamping die for the aluminum-plastic film housing of the lithium ion battery with a beveled punch. By adopting the die, stretching of an aluminum-plastic film in a stamping process can be reduced; the ratio of fracture of the aluminum-plastic film caused by overstretching is reduced; the qualified rate of production is greatly improved; the cost is reduced; and meanwhile, the stamping die is simple and convenient to operate, and easy to produce and implement in batches.
Description
Technical field
The diel of the aluminum plastic film shell of a kind of flexible packing lithium ion battery of the present invention and this lithium ion battery concretely, is a kind of diel of aluminum plastic film shell of the lithium ion battery with inclined-plane drift.
Background technology
In recent years, flexible packing lithium ion battery fast development, its shell mainly adopts aluminum plastic film external packing.Current aluminum plastic film mainly forms by three layers, comprises nylon layer, metal aluminium lamination and polypropylene (PP) layer composition, and thickness is in 0.05-0.50mm left and right.By the method for hot pressing, polypropylene layer heat is merged, reach the object of sealing battery core.
Because aluminum plastic film is planar film, in the course of processing, need to strike out corresponding size and dimension according to the size and shape of battery core.What existing process for stamping was conventional is single hole punching press and two hole punching press, and single hole punching press is once on aluminum plastic film, to go out a battery case, is conventionally applicable to the situation that cell thickness is thinner; The punching press of two holes is once on battery, to go out two battery cases, is conventionally applicable to thicker battery.But, no matter be single hole punching press or the punching press of two holes, the punching press plane of the die head of the diel adopting is all and the structure of mould bed punching press plane parallel, this structure stretches to aluminum plastic film equivalent in die head surrounding in the time of punching press, in the easy drawing crack in the place of mould corner, particularly in the time that press depth is darker or while adopting the punching press of two holes, substantially all can there is the damaged situation of aluminum plastic film, this situation not only reduces production efficiency, increase product cost, and do not find in time, also can cause battery leakage, cause the corrosion of battery outward appearance, or even the problem of catching fire.
Therefore, in prior art, there is so a kind of demand, reduce the stretching to aluminum plastic film in punching course, reduce the breakage of aluminum plastic film in punching press.
Summary of the invention
In order to solve aforementioned technical problem, the present invention proposes the diel of the aluminum plastic film shell of a kind of flexible packing lithium ion battery and this lithium ion battery, concretely, it is a kind of diel of aluminum plastic film shell of the lithium ion battery with inclined-plane drift, can reduce the stretching in aluminum plastic film punching course, increase aluminum plastic film press depth, reduce the aluminum plastic film breakage that punching press causes, reduce production costs.
A kind of aluminum plastic film diel of the present invention, this aluminum plastic film diel comprises punching press patrix and punching press counterdie, on punching press counterdie, stamping head is installed, on punching press patrix, contain the mould hole corresponding with stamping head on punching press counterdie, wherein: described stamping head punching press plane is rectangle, the described mould hole corresponding with stamping head is rectangle.
Described aluminum plastic film diel, wherein: described stamping head punching press plane and the transition portion of side elevation are the arc-shaped transition of rounding, and the radius of rounding is at 2-15mm.
Described aluminum plastic film diel, wherein: described diel on aluminum plastic film press depth at 6.5-15mm.
Described aluminum plastic film diel, wherein: the punching press plane of described stamping head and bottom punch flatten face angulation at 2-20 degree.
Described aluminum plastic film diel, wherein: described stamping head comprises the stamping head of the battery case for holding battery core and for holding the stamping head of gasbag of gas, described mould hole comprises the mould hole of the battery case for holding battery core and for holding the mould hole of gasbag of gas.
Described aluminum plastic film diel, wherein: described stamping head and mould hole for the battery case that holds battery core comprises two holes of only having the list of a battery case to cheat and have two battery cases.
Described aluminum plastic film diel, wherein: the distance in the mould hole in the described two holes that are provided with two battery core grooves on punching press patrix is 2-30mm.
A kind of flexible packing lithium ion battery, comprise battery core and aluminum plastic film shell, battery core is wrapped in the inside by aluminum plastic film shell, after aluminum plastic film is sealed, through overbaking, fluid injection, changes into, secondary encapsulation, trimming, flanging, obtains finished product battery after partial volume, wherein: described aluminum plastic film adopts the stamping die punching press described in above-mentioned middle any one.
The diel of the aluminum plastic film shell of a kind of flexible packing lithium ion battery provided by the present invention and this lithium ion battery, concretely, it is a kind of diel of aluminum plastic film shell of the lithium ion battery with inclined-plane drift, because diel has adopted the structure of inclined-plane die head, the stretching to aluminum plastic film can reduce punching press time, reduces the ratio that causes aluminum plastic film to break because of stretching transition, improve production qualification rate, reduce costs, this Mould operation is easy simultaneously, is easy to carry out.
Accompanying drawing explanation
Fig. 1 is single hole punching press patrix vertical view of the present invention;
Fig. 2 a is single hole punching press counterdie front view of the present invention;
Fig. 2 b is single hole punching press counterdie vertical view of the present invention;
Fig. 2 c is single hole punching press counterdie end view of the present invention;
Fig. 3 a is two hole punching press counterdie front view of the present invention;
Fig. 3 b is two hole punching press counterdie vertical view of the present invention;
Fig. 3 c is two hole punching press counterdie end view of the present invention;
Fig. 4 a is aluminum plastic film front view of the present invention;
Fig. 4 b is aluminum plastic film vertical view of the present invention;
Fig. 4 c is the structural representation of aluminum plastic film packaging electric core of the present invention;
Embodiment
Below with reference to accompanying drawings specific embodiment of the present invention is described in detail.Should be appreciated that following these describe in detail only for setting forth concept of the present invention and detail, thereby be convenient to understand, within it is not intended to that the protection range of this patent is limited to described embodiment.The modifications and variations that persons skilled in the art have been done the technical scheme in the application according to following description content, as long as no departing from inventive concept of the present invention, within being all interpreted as having dropped on protection scope of the present invention.
Fig. 1 is the vertical view of aluminum plastic film list hole punching press patrix 100 of the present invention, the mould hole 102 that it comprises a battery core groove that can hold a battery core, the mould hole 101 that holds the air bag of the gas producing in battery core formation process.
Fig. 2 a is the front view of aluminum plastic film list hole punching press counterdie 200 of the present invention, and in this figure, the stamping surface that has indicated stamping head 202 is the inclined-plane angled with the punching press plane of punching press counterdie 200, and angulation should be at 2-20 degree, preferably 5-15 degree; Fig. 2 b is the vertical view of single hole punching press counterdie 200, and from scheming, it comprises the die head 201 of cheating the die head 202 of the battery core the gone out groove matching and going out air bag with mould; Fig. 2 c is the end view of single hole punching press counterdie 200, and as shown, the coupling part of stamping head 202 punching press planes and side elevation is the arc-shaped transition of rounding, and the radius of fillet is at 2-13mm, preferably 4-10mm.
The front view of the two hole punching press of Fig. 3 a aluminum plastic film of the present invention counterdie 200, in this figure, the stamping surface that has indicated two stamping heads 202 is the inclined-plane angled with the punching press plane of punching press counterdie 200, and angulation should be at 2-20 degree, preferably 5-15 degree; Fig. 3 b is the vertical views of two hole punching press counterdies 200, from scheming, it comprise match with mould hole go out two battery core grooves to rush hole die head 202 and go out the distance that the mould of 201, two battery core grooves of die head of air bag cheats be 2-30mm, preferably 6-18mm; Fig. 3 c is the end views of two hole punching press counterdies 200, and as shown, the coupling part of stamping head 202 punching press planes and side elevation is the arc-shaped transition of rounding, and the radius of fillet is at 2-15mm, preferably 4-10mm.
In punching course, aluminum plastic film is placed between punching press patrix and punching press counterdie, and after punching press patrix and punching press counterdie matched moulds, punching press drift stretches aluminum plastic film under external force along the direction in mould hole, after reaching the degree of depth of restriction, die head exits, and can obtain the aluminum plastic film that punching press is good.
As shown in Fig. 4 a, on the aluminum plastic film 300 of finished product, comprise air bag 301 and battery case 302, battery case 302 has the encapsulating face of the inclination consistent with stamping head, and angle should be at 2-20 degree, preferably 5-15 degree; The press depth of battery case is at 6.5-15mm, preferably 7-10mm; As shown in Figure 4 b, the distance in two holes of two battery core grooves is 2-30mm, preferably 6-18mm.
As shown in Fig. 4 c, battery core 400 is put into plastic-aluminum packaging film 300, battery core is wrapped in the inside by aluminum plastic film, and after aluminum plastic film is sealed, through overbaking, fluid injection, changes into, secondary encapsulation, trimming, obtains finished product battery after flanging.
By adopting the diel of aluminum plastic film shell of a kind of flexible packing lithium ion battery provided by the present invention and this lithium ion battery, because diel has adopted the structure of inclined-plane die head, stretching to aluminum plastic film can reduce punching press time, reduce the ratio that causes aluminum plastic film to break because of stretching transition, improve production qualification rate, reduce costs, this Mould operation is easy simultaneously, is easy to carry out in batches.
Claims (8)
1. an aluminum plastic film diel, it is characterized in that: this aluminum plastic film diel comprises punching press patrix and punching press counterdie, on punching press counterdie, stamping head is installed, on punching press patrix, contain the mould hole corresponding with stamping head on punching press counterdie, it is characterized in that: described stamping head punching press plane is rectangle, the described mould hole corresponding with stamping head is rectangle.
2. aluminum plastic film diel according to claim 1, is characterized in that: described stamping head punching press plane and the transition portion of side elevation are the arc-shaped transition of rounding, and the radius of rounding is at 2-15mm.
3. aluminum plastic film diel according to claim 1, is characterized in that: described diel on aluminum plastic film press depth at 6.5-15mm.
4. aluminum plastic film diel according to claim 1, is characterized in that: the punching press plane of described stamping head and punching press bottom punch flatten face angulation at 2-20 degree.
5. aluminum plastic film diel according to claim 1, it is characterized in that: described stamping head comprises the stamping head of the battery case for holding battery core and for holding the stamping head of gasbag of gas, described mould hole comprises the mould hole of the battery case for holding battery core and for holding the mould hole of gasbag of gas.
6. aluminum plastic film diel according to claim 5, is characterized in that: described stamping head and mould hole for the battery case that holds battery core comprises two holes of only having the list of a battery case to cheat and have two battery cases.
7. aluminum plastic film diel according to claim 6, is characterized in that: the distance in the mould hole in the described two holes that are provided with two battery core grooves on punching press patrix is 2-30mm.
8. a flexible packing lithium ion battery, comprise battery core and aluminum plastic film shell, battery core is wrapped in the inside by aluminum plastic film shell, after aluminum plastic film is sealed, through overbaking, fluid injection, changes into, secondary encapsulation, trimming, flanging, obtains finished product battery after partial volume, it is characterized in that: the aluminum plastic film shell of described flexible packing lithium ion battery adopts the stamping die punching press as described in any one in right 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210547965.3A CN103872267A (en) | 2012-12-14 | 2012-12-14 | Flexible packaging lithium ion battery and stamping die for aluminum-plastic film housing of same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210547965.3A CN103872267A (en) | 2012-12-14 | 2012-12-14 | Flexible packaging lithium ion battery and stamping die for aluminum-plastic film housing of same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103872267A true CN103872267A (en) | 2014-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210547965.3A Pending CN103872267A (en) | 2012-12-14 | 2012-12-14 | Flexible packaging lithium ion battery and stamping die for aluminum-plastic film housing of same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103872267A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107394279A (en) * | 2017-07-28 | 2017-11-24 | 深圳市博澳能源技术开发有限公司 | The method for packing of monomer high capacity polymer lithium ion battery |
| CN107994138A (en) * | 2017-11-30 | 2018-05-04 | 西安瑟福能源科技有限公司 | A kind of soft bag lithium ionic cell aluminum plastic film rushes shell structure and method |
| CN110870090A (en) * | 2018-03-06 | 2020-03-06 | 株式会社Lg化学 | Apparatus and method for manufacturing pouch and method for manufacturing secondary battery |
| CN117252866A (en) * | 2023-11-14 | 2023-12-19 | 山东迪格重工机械有限公司 | Numerical control stamping forming self-adjustment operation detection method based on image recognition |
-
2012
- 2012-12-14 CN CN201210547965.3A patent/CN103872267A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107394279A (en) * | 2017-07-28 | 2017-11-24 | 深圳市博澳能源技术开发有限公司 | The method for packing of monomer high capacity polymer lithium ion battery |
| CN107994138A (en) * | 2017-11-30 | 2018-05-04 | 西安瑟福能源科技有限公司 | A kind of soft bag lithium ionic cell aluminum plastic film rushes shell structure and method |
| CN110870090A (en) * | 2018-03-06 | 2020-03-06 | 株式会社Lg化学 | Apparatus and method for manufacturing pouch and method for manufacturing secondary battery |
| CN110870090B (en) * | 2018-03-06 | 2022-05-24 | 株式会社Lg化学 | Apparatus and method for manufacturing pouch and method for manufacturing secondary battery |
| US11673311B2 (en) | 2018-03-06 | 2023-06-13 | Lg Energy Solution, Ltd. | Apparatus for manufacturing pouch |
| CN117252866A (en) * | 2023-11-14 | 2023-12-19 | 山东迪格重工机械有限公司 | Numerical control stamping forming self-adjustment operation detection method based on image recognition |
| CN117252866B (en) * | 2023-11-14 | 2024-02-13 | 山东迪格重工机械有限公司 | Numerical control stamping forming self-adjustment operation detection method based on image recognition |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140618 |