CN204348763U - A kind of lithium ion battery aluminum plastic film packaging system - Google Patents
A kind of lithium ion battery aluminum plastic film packaging system Download PDFInfo
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- CN204348763U CN204348763U CN201420735804.1U CN201420735804U CN204348763U CN 204348763 U CN204348763 U CN 204348763U CN 201420735804 U CN201420735804 U CN 201420735804U CN 204348763 U CN204348763 U CN 204348763U
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- China
- Prior art keywords
- bottom head
- upper cover
- plastic film
- aluminum plastic
- lithium ion
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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
Abstract
The utility model discloses a kind of lithium ion battery aluminum plastic film packaging system, comprise upper cover element and bottom head element, bottom head heating element is also provided with below described bottom head element, described bottom head heating element comprises lower heating external member and is arranged at the lower heating tube of heating external member inside, lithium ion battery aluminum plastic film packaging system of the present utility model, by heating element, described bottom head is heated, thus ensure in the melting packaging technology of film, the temperature of two panels aluminum plastic film melted by heating is homogeneous, fusion performance is homogeneous, ensure the stable performance of fusion film, guarantee the stability of packaging effect.
Description
Technical field
The utility model relates to a kind of cell package device, is specifically related to a kind of lithium ion battery aluminum plastic film packaging system, belongs to lithium ion battery preparing technical field.
Background technology
Lithium ion battery is generally that use lithium alloy metals oxide is positive electrode, graphite is negative material, uses the battery of nonaqueous electrolyte, a kind of secondary cell (rechargeable battery), because of the advantage of its high-energy-density, high voltage, high-energy-density, be widely used in, in the portable electronic products such as mobile communication, notebook computer, utilizing Li
+come and go between two electrodes and embed and deintercalation, to realize charge and discharge process.
Because lithium ion battery is according to Li
+in nonaqueous electrolyte, reciprocal running realizes discharge and recharge, and therefore dust, metal fillings, moisture are the killers that lithium ion battery is the most fatal.Such as, lithium ion battery, when carrying out discharge and recharge, has certain requirement to temperature and environment, and the RH value of its internal relative humidity will below 2%, and the relative humidity of air is at least all more than 50%.So when lithium ion battery encapsulation imprecision, the moisture content in the middle of air is just gone in lithium battery interior and is gone, and causes cell damage or security incident.For these reasons, in order to farthest avoid dust, metal fillings, moisture to the destruction of lithium ion battery, the tight encapsulation realizing lithium ion battery is one of effective way avoiding lithium ion battery destroyed by above-mentioned substance.
The shell of current lithium ion battery has cylinder box hat, square aluminum hull, laminated aluminum film three major types, and laminated aluminum film battery is called for short soft-package battery again.After it utilizes a slice aluminum plastic film to strike out the shape of needs, again with high temperature by aluminum plastic film heat-sealing get up, the aluminum plastic film material that general soft-package battery uses forms by three layers, ground floor (extexine) material is nylon, the second layer (intermediate layer) material is that aluminium is thin, and third layer (endosexine) material is PP/PE.Aluminum plastic film encapsulation is exactly the mode by physical heating, is fused together by the PP/PE of two panels aluminum plastic film third layer.In present soft-package battery aluminum plastic film packaging technology, main method and the frock adopting soft encapsulation, soft envelope frock is made up of the lower cushion block of a upper cover and a high temperature resistant silica gel material.In encapsulation process, first soft envelope frock is installed on dress envelope equipment, after upper cover is heated to 185 DEG C, soft-package battery to be packaged is put on silica gel lower cushion block, finally start encapsulation switch, upper cover encapsulates 3S clock time on soft-package battery aluminum plastic film, and encapsulation completes.Because only have one to add heat-sealing head in above-mentioned technique, and lower cushion block is soft silica gel, so when encapsulating, aluminum plastic film has heating uneven, the shortcoming of discontinuity, thus causes packaging effect unstable, and product yield is low.
For this reason, Chinese patent literature CN203323179U discloses a kind of encapsulation end socket being applicable to the aluminum plastic film encapsulation of lithium ion battery, the reeded bottom head of tool is adopted in this patent documentation, make the seal edge thickness after film hot melt consistent, thus ensure packed aluminum plastic film encapsulation pressure everywhere, improve package quality.But above-mentioned packaged type solve only the problem of discontinuity in packaging technology, cannot ensure the uniformity of temperature after film hot melt, and the temperature of film hot melt differing, there is notable difference in two-layer membrane-bound fastness, thus make its adhesion produce difference, and then make packaging effect still unstable.
Summary of the invention
For solving the problem that existing packaging technology is uneven to aluminum plastic film heating, cause packaging effect still unstable, and then provide a kind of lithium ion battery aluminum plastic film packaging system.
For this reason, the technical scheme that the application takes is,
A kind of lithium ion battery aluminum plastic film packaging system, comprises upper cover element and bottom head element, is also provided with bottom head heating element below described bottom head element.
In above-mentioned lithium ion battery aluminum plastic film packaging system, described bottom head heating element comprises lower heating external member and is arranged at the lower heating tube of heating external member inside.
In above-mentioned lithium ion battery aluminum plastic film packaging system, described lower heating external member is provided with the through hole being parallel to described bottom head element, the through hole that described lower heating tube is arranged at described bottom head element is inner.
In above-mentioned lithium ion battery aluminum plastic film packaging system, described bottom head element comprises bottom head body and perpendicular to described bottom head body and the lower gusset plate be wholely set with it, thus making the cross section of described bottom head element be inverted T-shaped, described bottom head element is copper bottom head element.
In above-mentioned lithium ion battery aluminum plastic film packaging system, below described bottom head heating element, be provided with bottom head fixed head, in order to be fixed on sealed in unit by described bottom head element.
In above-mentioned lithium ion battery aluminum plastic film packaging system, described upper cover element comprises upper cover body and perpendicular to described upper cover body and the upper gusset plate be wholely set with it, thus making the cross section of described upper cover element be T-shaped, described upper cover element is copper upper cover element.
In above-mentioned lithium ion battery aluminum plastic film packaging system, the top of described upper cover element is provided with upper cover heating element, it comprises the upper heating external member being provided with the through hole being parallel to described upper cover element, and is arranged at the upper heating tube of through hole inside of described upper cover element.
In above-mentioned lithium ion battery aluminum plastic film packaging system, above described upper cover heating element, be also disposed with the upper mounted plate be bolted, upper thermal insulation board and upper junction plate;
Described upper heating external member and described upper gusset plate are bolted, and described upper cover fixed head and described upper heating external member are bolted;
Described lower heating external member and described lower gusset plate are bolted, and described bottom head fixed head and described heating external member are bolted.
In above-mentioned lithium ion battery aluminum plastic film packaging system, the side away from described lower gusset plate is provided with the first groove to described bottom head body, is also provided with the second groove in described first groove.The depth calculation formula of described first groove is,
Thickness (unit, the mm) × 2-0.05mm of the aluminum plastic film of the degree of depth (unit, mm) of described first groove=pre-packaged, that is, the few 0.05mm of the twice of the thickness of the aluminum plastic film that the depth ratio of described first groove is pre-packaged.
According to the thickness of the aluminum plastic film adopted normal on market, the degree of depth of described first groove is 0.18-0.25mm.
In above-mentioned lithium ion battery aluminum plastic film packaging system, the depth of parallelism of described upper cover element and bottom head element is not more than 0.04mm.
Compared with prior art, the utility model tool has the following advantages,
(1) lithium ion battery aluminum plastic film packaging system of the present utility model, comprise upper cover element and bottom head element, bottom head heating element is also provided with below described bottom head element, by heating element, described bottom head is heated, thus ensureing that, in the melting packaging technology of film, the temperature of two panels aluminum plastic film melted by heating is homogeneous, fusion performance is homogeneous, ensure the stable performance of fusion film, guarantee the stability of packaging effect.
(2) lithium ion battery aluminum plastic film packaging system of the present utility model, bottom head structure and bottom head structure are made up of Various Components, make when end socket surface occurs that loss is changed, only change bottom head element or upper cover element, replace without the need to entirety, this split set-up mode provides cost savings.
(3) lithium ion battery aluminum plastic film packaging system of the present utility model, is also provided with thermal insulation board, avoids the thermal loss of heating tube, save energy consumption.
(4) lithium ion battery aluminum plastic film packaging system of the present utility model, thickness (unit, the mm) × 2-0.05mm of the aluminum plastic film of the degree of depth (unit, mm) of described first groove=pre-packaged.According to the degree of depth of the first groove described in above-mentioned formulae discovery, when encapsulating in this size range, aluminum plastic film hot melt is even, there will not be superfusion phenomenon, ensure that packaging effect.
(5) lithium ion battery aluminum plastic film packaging system of the present utility model, preferably uses copper bottom head element, compared to silica gel matter bottom head element, heat conduction and stressed uniformity good, packaging effect is stablized, improves the yield of product, be convenient to the maintenance in later stage simultaneously.
Accompanying drawing explanation
In order to make content of the present utility model be more likely to be clearly understood, below according to this specific embodiment of the utility model also by reference to the accompanying drawings, this utility model is described in further detail, wherein
Fig. 1 is a kind of structural representation of lithium ion battery aluminum plastic film packaging system;
Fig. 2 is the structural representation of lithium ion battery aluminum plastic film packaging system bottom head part;
Fig. 3 is the structural representation of lithium ion battery aluminum plastic film packaging system upper cover part.
Wherein, Reference numeral is expressed as,
1-upper cover element, 11-upper cover body, the upper gusset plate of 12-, 2-heats external member, 21-upper heating external member through hole, the upper heating tube of 3-, 4-upper mounted plate, the upper thermal insulation board of 5-, 6-upper junction plate, 7,8,9,14,15-bolt, 10-bottom head element, gusset plate, 103-first groove under 101-bottom head body, 102-, 104-second groove, heats external member under 11-, external member through hole is heated, heating tube under 12-, 13-bottom plate under 111-.
Embodiment
As Figure 1-3, a kind of lithium ion battery aluminum plastic film packaging system of the present utility model, comprise upper cover element 1 and bottom head element 10, the below of described bottom head element 10 is also provided with bottom head heating element.
On the basis of above-mentioned execution mode, described bottom head heating element comprises lower heating external member 11 and is arranged at the lower heating tube 12 of heating external member inside.
On the basis of above-mentioned execution mode, described lower heating external member 11 is provided with the through hole being parallel to described bottom head element 10, i.e. lower heating external member through hole 111, the through hole that described lower heating tube 12 is arranged at described bottom head element is inner.
On the basis of above-mentioned execution mode, described bottom head element 10 comprises bottom head body 101 and perpendicular to described bottom head body 101 and the lower gusset plate 102 be wholely set with it, thus make the cross section of described bottom head element be inverted T-shaped, preferred described bottom head element is copper bottom head element, to guarantee the uniformity of heat conduction, guarantee packaging effect, and be convenient to later period maintenance.
On the basis of above-mentioned execution mode, below described bottom head heating element 11, be provided with bottom head fixed head 13, in order to be fixed on sealed in unit by described bottom head element 10.
On the basis of above-mentioned execution mode, described upper cover element 1 comprises upper cover body 11 and perpendicular to described upper cover body 11 and the upper gusset plate 12 be wholely set with it, thus make the cross section of described upper cover element be T-shaped, preferred described upper cover element is copper upper cover element, thus cooperatively interact with copper bottom head element, guarantee in encapsulation process, the uniformity that aluminum plastic film is stressed, guarantee packaging effect.
On the basis of above-mentioned execution mode, the top of described upper cover element 1 is provided with upper cover heating element, and it comprises the upper heating external member 2 being provided with the through hole being parallel to described upper cover element, and is arranged at the upper heating tube 3 of upper cover element through-holes 21 inside.
On the basis of above-mentioned execution mode, above described upper cover heating element 2, be also disposed with the upper mounted plate 4, upper thermal insulation board 5 and the upper junction plate 6 that are connected by bolt 7;
Described upper heating external member 2 is connected by bolt 9 with described upper gusset plate 12, and described upper cover fixed head 4 is connected by bolt 8 with described upper heating external member 2;
Described lower heating external member 11 is connected by bolt 15 with described lower gusset plate 102, and described bottom head fixed head 13 is connected by bolt 14 with described heating external member 11.
On the basis of above-mentioned execution mode, the depth of parallelism that described upper cover element 1 and bottom head element 10 carry out encapsulation process is 0.04mm.
On the basis of above-mentioned execution mode, the side away from described lower gusset plate 102 is provided with the first groove 103 to described bottom head body 101, is also provided with the second groove 104 in described first groove 103.
The operation principle of this lithium ion battery aluminum plastic film packaging system is, shown in Fig. 2 and 3, by upper cover part and bottom head sections fit good, be arranged in sealed in unit epicoele by upper cover part during use, epicoele can move up and down; Bottom head part is arranged in the cavity of resorption of sealed in unit, and cavity of resorption maintains static.Upper heating tube and lower heating tube are connected with power line respectively, setting package temperature is 185 ± 5 DEG C, and encapsulation pressure is 0.4-0.6MP, starts sealed in unit switch after upper heating tube and lower heating tube reach design temperature, can carry out aluminum plastic film encapsulation.Be placed between upper cover element and bottom head element by needing the aluminum plastic film carrying out encapsulating, start encapsulation switch, upper cover part can together with equipment epicoele under automatic pressing, after 3S, upper cover part rises automatically, aluminum plastic film is merged closely by the PP/PE layer of its third layer after above-mentioned condition processing, and encapsulation completes.The surperficial depth of parallelism of upper cover element and bottom head element reaches 0.04mm in above process.The degree of depth of described first groove sets according to the thickness of aluminum plastic film in the market, fixing size need not be sticked to, the depth calculation formula of described first groove is, the degree of depth (the unit of described first groove, thickness (unit, the mm) × 2-0.05mm of mm)=pre-packaged aluminum plastic film.The thickness correspondence of such as 115 microns uses the end socket that the degree of depth of the first groove is 0.18mm, and the thickness correspondence of 150 microns uses the degree of depth of the first groove to be 0.25mm end socket.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And thus the apparent change of extending out or variation be still among the protection range of the invention.
Claims (7)
1. a lithium ion battery aluminum plastic film packaging system, comprises upper cover element and bottom head element, it is characterized in that, is also provided with bottom head heating element below described bottom head element; Described bottom head heating element comprises lower heating external member and is arranged at the lower heating tube of heating external member inside; Described lower heating external member is provided with the through hole being parallel to described bottom head element, and the through hole that described lower heating tube is arranged at described bottom head element is inner; Described bottom head element comprises bottom head body and perpendicular to described bottom head body and the lower gusset plate be wholely set with it, thus makes the cross section of described bottom head element be inverted T-shaped, and described bottom head element is copper bottom head element.
2. lithium ion battery aluminum plastic film packaging system according to claim 1, is characterized in that, is provided with bottom head fixed head below described bottom head heating element, in order to be fixed on sealed in unit by described bottom head element.
3. lithium ion battery aluminum plastic film packaging system according to claim 2, is characterized in that,
Described upper cover element comprises upper cover body and perpendicular to described upper cover body and the upper gusset plate be wholely set with it, thus makes the cross section of described upper cover element be T-shaped, and described upper cover element is copper upper cover element.
4. lithium ion battery aluminum plastic film packaging system according to claim 3, it is characterized in that, the top of described upper cover element is provided with upper cover heating element, it comprises the upper heating external member being provided with the through hole being parallel to described upper cover element, and is arranged at the upper heating tube of through hole inside of described upper cover element.
5. lithium ion battery aluminum plastic film packaging system according to claim 4, is characterized in that,
The upper mounted plate be bolted, upper thermal insulation board and upper junction plate is also disposed with above described upper cover heating element;
Described upper heating external member and described upper gusset plate are bolted, and fixed plate and described upper heating external member are bolted;
Described lower heating external member and described lower gusset plate are bolted, and described bottom head fixed head and described heating external member are bolted.
6. the lithium ion battery aluminum plastic film packaging system according to claim 4 or 5, is characterized in that,
Side away from described lower gusset plate is provided with the first groove to described bottom head body, is also provided with the second groove in described first groove;
The degree of depth of described first groove calculates according to following formula, the thickness × 2-0.05mm of the aluminum plastic film of the degree of depth of described first groove=pre-packaged.
7. lithium ion battery aluminum plastic film packaging system according to claim 6, is characterized in that, the depth of parallelism of described upper cover element and bottom head element is not more than 0.04mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420735804.1U CN204348763U (en) | 2014-11-27 | 2014-11-27 | A kind of lithium ion battery aluminum plastic film packaging system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420735804.1U CN204348763U (en) | 2014-11-27 | 2014-11-27 | A kind of lithium ion battery aluminum plastic film packaging system |
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| CN204348763U true CN204348763U (en) | 2015-05-20 |
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| CN201420735804.1U Expired - Fee Related CN204348763U (en) | 2014-11-27 | 2014-11-27 | A kind of lithium ion battery aluminum plastic film packaging system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106992315A (en) * | 2016-01-21 | 2017-07-28 | 郑州比克电池有限公司 | Cell package device and its detection method with Parallel testing function |
| CN107749496A (en) * | 2016-09-29 | 2018-03-02 | 万向二三股份公司 | A kind of heat insulation structural of cell aluminum-plastic membrane heat sealing mechanism |
| CN109004282A (en) * | 2018-07-25 | 2018-12-14 | 柔电（武汉）科技有限公司 | Ultra-thin soft package lithium battery end socket, closing end component, packaging system and packaging method |
-
2014
- 2014-11-27 CN CN201420735804.1U patent/CN204348763U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106992315A (en) * | 2016-01-21 | 2017-07-28 | 郑州比克电池有限公司 | Cell package device and its detection method with Parallel testing function |
| CN106992315B (en) * | 2016-01-21 | 2019-06-28 | 郑州比克电池有限公司 | Battery packaging device and its detection method with parallelism detection function |
| CN107749496A (en) * | 2016-09-29 | 2018-03-02 | 万向二三股份公司 | A kind of heat insulation structural of cell aluminum-plastic membrane heat sealing mechanism |
| CN107749496B (en) * | 2016-09-29 | 2020-05-19 | 万向一二三股份公司 | Heat insulation structure of battery aluminum plastic film heat sealing mechanism |
| CN109004282A (en) * | 2018-07-25 | 2018-12-14 | 柔电（武汉）科技有限公司 | Ultra-thin soft package lithium battery end socket, closing end component, packaging system and packaging method |
| CN109004282B (en) * | 2018-07-25 | 2023-11-03 | 柔电（武汉）科技有限公司 | Sealing head for ultrathin soft-package lithium battery, sealing head assembly, packaging device and packaging method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180508 Address after: No. 188, Miyun District, Miyun District, Beijing, Beijing Patentee after: Beijing treasure Car Co.,Ltd. Address before: 102206, Beijing, Shahe Town, Changping District Road, sand Yang Patentee before: BEIQI FOTON MOTOR Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20211127 |