CN203225319U - Packaging structure of soft packaged battery - Google Patents
Packaging structure of soft packaged battery Download PDFInfo
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- CN203225319U CN203225319U CN2013202598646U CN201320259864U CN203225319U CN 203225319 U CN203225319 U CN 203225319U CN 2013202598646 U CN2013202598646 U CN 2013202598646U CN 201320259864 U CN201320259864 U CN 201320259864U CN 203225319 U CN203225319 U CN 203225319U
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- sealing
- fixing body
- pneumatophore
- soft
- battery
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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 provides a packaging structure of a soft packaged battery, belonging to the technical field of battery packaging. By using the packaging structure, the problems of safety accidents and low safety caused by combustion explosion generated by combustible gas leakage of the soft packaged battery in an existing packaging structure of the soft packaged battery are solved. The packaging structure of the soft packaged battery comprises a packaging bag formed by hot melting of an aluminum plastic film; the packaging bag is provided with a mounting body for packaging a battery and at least one air sac body which is arranged in a sealing way and internally provided with an active adsorbent; the periphery of the mounting body is sealed by using sealing edges; and a sealing weakening region for enabling the sealing edges arranged between the mounting body and the air sac body to firstly open to communicate the mounting body and the air sac body when the air pressure in the mounting body is increased is arranged between the mounting body and the air sac body. According to the packaging structure of the soft packaged battery, combustible gas generated by the battery can be buffered to the air sac body and adsorbed by the active adsorbent, so that the safety accidents caused by combustion explosion and the like generated by combustible gas leakage and ignition are effectively avoided; and the packaging structure is better in safety.
Description
Technical field
The utility model belongs to the battery packages technical field, relates to the encapsulating structure of a kind of soft-package battery, particularly a kind of soft-package battery.
Background technology
Use along with the lithium battery commercialization, its fail safe more and more is subjected to people's attention.Soft-package battery is that the another kind of call of polymer battery is compared with lithium ion battery, has that volume is little, in light weight, specific energy is high, a multiple advantage such as safe, flexible design, thereby is widely used in each field.
Existing soft-package battery structurally all is to adopt the aluminum plastic film encapsulation.As Chinese patent application (application number: 201220527742.6) disclose a kind of LiMn2O4 soft-package battery, comprise the potassium manganate positive plate, negative plate, electrolyte, lug glue, barrier film, aluminum plastic film, described potassium manganate positive plate is formed by anodal base flow body and potassium manganate coating, described negative plate is formed by negative pole base flow body and negative pole coating, described barrier film separates potassium manganate positive plate and negative plate, between described potassium manganate positive plate and the negative plate electrolyte is arranged, described aluminum plastic film is packed electric core makes aluminum plastic film be enclosed on the lug glue and for example Chinese patent application (application number: 201120559061.3) disclose a kind of soft-package battery encapsulating structure, formed by battery container and aluminum plastic film, aluminum plastic film is divided into two-layer up and down, one side leaves opening, battery container is fixed between the levels aluminum plastic film, and all keeps distance with each edge of aluminum plastic film.The encapsulation of above-mentioned soft-package battery all exists following defective: the electrolyte of soft-package battery inside battery when being subjected to states such as high temperature impact, internal short-circuit, outside heavy-current discharge can decompose the generation fuel gas, the lasting rising of the combustible gas scale of construction can cause soft-package battery to wash the sealing pressure release of aluminum plastic film open, and leaking of fuel gas contacts with airborne oxygen, easy firing blast under the situation that spark or high temperature are arranged, thereby the generation security incident, fail safe is low.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, proposed a kind of encapsulating structure of soft-package battery, its technical problem to be solved is: in the existing encapsulating structure, the fuel gas that soft-package battery produces leaks and can cause combustion explosion, cause security incident, fail safe is low.
The purpose of this utility model can realize by following technical proposal: a kind of encapsulating structure of soft-package battery comprises the encapsulation bag that adopts the aluminum plastic film hot melt to form; It is characterized in that, described encapsulation bag have for the fixing body of packaged battery and at least one sealing arranges and in be provided with the pneumatophore of hypersober; All seal by edge sealing around the described fixing body; Has when the air pressure in the fixing body increases fixing body and edge sealing between the pneumatophore sealing weakened region that opening makes fixing body be connected with pneumatophore that can take the lead between described fixing body and the pneumatophore.
The encapsulating structure of this soft-package battery is by the design of pneumatophore, when the battery generation fuel gas in being encapsulated in fixing body raises the air pressure inside of fixing body, sealing weakened region between fixing body and the pneumatophore is washed open at first, thereby make fixing body and pneumatophore be interconnected, fuel gas is buffered in the pneumatophore, and adsorbed by the hypersober in the pneumatophore, prevented that effectively the fuel gas contact oxygen that leaks from being lighted security incidents such as combustion explosion takes place, the fail safe that has greatly improved soft-package battery by Mars etc.The hypersober that is arranged in the pneumatophore can be in the active material of carbon molecular sieve, silica gel, activated alumina or other high adsorptions one or more.
The storage battery of encapsulation can be single storage battery all in the form of sheets in the fixing body of this encapsulating structure, also can be a plurality of storage battery series, parallel or connection in series-parallel, can also be the batteries of lamination, and versatility is better.
In the encapsulating structure of above-mentioned soft-package battery, described sealing weakened region is the edge sealing between fixing body and the pneumatophore; The width of above-mentioned edge sealing is less than the width of edge sealing between fixing body and each edge of encapsulation bag.When the battery generation fuel gas in being encapsulated in fixing body raises the air pressure inside of fixing body, because the width of the edge sealing between fixing body and the pneumatophore is relative less, can be washed open at first, make fixing body and pneumatophore be interconnected, fuel gas enters in the pneumatophore pneumatophore that is folded with is strutted, fuel gas is buffered in the pneumatophore and by the absorption of the hypersober in the pneumatophore, has prevented that effectively the fuel gas contact oxygen that leaks from being lighted security incidents such as combustion explosion takes place by Mars etc.
In the encapsulating structure of above-mentioned soft-package battery, described sealing weakened region is to have sealing on the edge sealing between fixing body and the pneumatophore to weaken band; Described sealing weakens the sealing intensity of band less than the sealing intensity of edge sealing.When the battery generation fuel gas in being encapsulated in fixing body raises the air pressure inside of fixing body, since the sealing intensity that sealing weakens band relatively a little less than, can be washed open at first, make fixing body and pneumatophore be interconnected, fuel gas is buffered in the pneumatophore, and by the hypersober in pneumatophore absorption, prevented that effectively the fuel gas contact oxygen that leaks from being lighted security incidents such as combustion explosion takes place by Mars etc.
In the encapsulating structure of above-mentioned soft-package battery, described sealing weakened region is that the edge sealing between fixing body and the pneumatophore is provided with the pressure release breach; Described pressure release breach is connected with fixing body.When the battery generation fuel gas in being encapsulated in fixing body raises the air pressure inside of fixing body, because the pressure release indentation, there does not seal, sealing intensity is the most weak, can be washed open at first, make fixing body and pneumatophore be interconnected, fuel gas is buffered in the pneumatophore, and by the hypersober in pneumatophore absorption, has prevented that effectively the fuel gas contact oxygen that leaks from being lighted security incidents such as combustion explosion takes place by Mars etc.The pressure release breach can arrange one, also can arrange a plurality ofly, can set according to the volume of concrete storage battery model and the fuel gas that can produce.
In the encapsulating structure of above-mentioned soft-package battery, described pressure release breach is del.The pressure release breach is the inverted triangle design, and fuel gas can easierly be washed sealing herein open.
In the encapsulating structure of above-mentioned soft-package battery, described pressure release breach is circular arc.The pressure release breach is the circular arc design, and fuel gas can easierly be washed sealing herein open.
In the encapsulating structure of above-mentioned soft-package battery, described pneumatophore is 1～4.The quantity of pneumatophore can be set according to the volume of concrete storage battery model and the fuel gas that can produce.In this encapsulating structure, air bag is distributed in a side of fixing body or is evenly distributed on four sides of fixing body.
Compared with prior art, the encapsulating structure of this soft-package battery has the following advantages:
1, by pneumatophore and the sealing weakened region setting, the fuel gas that battery produces can be buffered in the pneumatophore, and by the hypersober in pneumatophore absorption, having prevented that effectively the fuel gas contact oxygen that leaks from being lighted security incidents such as combustion explosion takes place by Mars etc., fail safe is better.
2, can be used for encapsulating the batteries of various series, parallel or series-parallel storage battery, lamination, versatility is better.
3, simple in structure, easy to make, required cost is low.
Description of drawings
Fig. 1 is the schematic diagram of the encapsulating structure embodiment one of this soft-package battery.
Fig. 2 is the profile of the encapsulating structure of this soft-package battery.
Fig. 3 is the schematic diagram of the encapsulating structure embodiment two of this soft-package battery.
Fig. 4 is the schematic diagram of the encapsulating structure embodiment three of this soft-package battery.
Among the figure, 1, encapsulation bag; 2, fixing body; 3, pneumatophore; 4, edge sealing; 5, pressure release breach; 6, sealing weakens band.
Embodiment
Below be specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
Embodiment one
Shown in Fig. 1-2, the encapsulating structure of this soft-package battery comprises the encapsulation bag 1 that adopts the aluminum plastic film hot melt to form.Encapsulation bag 1 have for the fixing body 2 of packaged battery and at least one sealing arranges and in be provided with the pneumatophore 3 of hypersober.Hypersober can be in the active material of carbon molecular sieve, silica gel, activated alumina or other high adsorptions one or more.All seal by edge sealing 4 around the fixing body 2; Has when the air pressure in the fixing body 2 increases fixing body 2 and edge sealing 4 between the pneumatophore 3 sealing weakened region that opening makes fixing body 2 be connected with pneumatophore 3 that can take the lead between fixing body 2 and the pneumatophore 3.
More particularly, the sealing weakened region is that edge sealing 4 between fixing body 2 and the pneumatophore 3 is provided with pressure release breach 5; Pressure release breach 5 is connected with fixing body 2.Pressure release breach 5 is del.Pressure relief opening can arrange one, also can arrange a plurality ofly, can set according to the volume of concrete storage battery model and the fuel gas that can produce.Another alternative as present embodiment: pressure release breach 5 is circular arc.Pneumatophore 3 is 1～4.The quantity of pneumatophore 3 can be set according to the volume of concrete storage battery model and the fuel gas that can produce.In this encapsulating structure, air bag is distributed in a side of fixing body 2 or is evenly distributed on four sides of fixing body 2.
The encapsulating structure of this soft-package battery is by the design of pneumatophore 3, when the battery generation fuel gas in being encapsulated in fixing body 2 raises the air pressure inside of fixing body 2, because pressure release breach 5 places do not seal, sealing intensity is the most weak, can be washed open at first, make fixing body 2 and pneumatophore 3 be interconnected, fuel gas is buffered in the pneumatophore 3, and by the absorption of the hypersober in the pneumatophore 3, prevented that effectively the fuel gas contact oxygen that leaks from being lighted security incidents such as combustion explosion takes place, the fail safe that has greatly improved soft-package battery by Mars etc.
Embodiment two
As shown in Figure 3, the encapsulating structure of this soft-package battery and embodiment one are basic identical, its difference is: the sealing weakened region is the edge sealing 4 between fixing body 2 and the pneumatophore 3, and the width of above-mentioned edge sealing 4 is less than edge sealing 4 width between fixing body 2 and encapsulation bag 1 each edge.
When the battery generation fuel gas in being encapsulated in fixing body 2 raises the air pressure inside of fixing body 2, because the width of the edge sealing 4 between fixing body 2 and the pneumatophore 3 is relative less, can be washed open at first, make fixing body 2 and pneumatophore 3 be interconnected, fuel gas enters in the pneumatophore 3 pneumatophore 3 that is folded with is strutted, fuel gas is buffered in the pneumatophore 3 and by the absorption of the hypersobers in the pneumatophore 3, has prevented that effectively the fuel gas contact oxygen that leaks from being lighted security incidents such as combustion explosion takes place by Mars etc.
Embodiment three
As shown in Figure 4, the encapsulating structure of this soft-package battery and embodiment one are basic identical, and its difference is: the sealing weakened region is to have on the edge sealing 4 between fixing body 2 and the pneumatophore 3 to seal to weaken to be with 6; Sealing weakens with 6 the sealing intensity sealing intensity less than edge sealing
When the battery generation fuel gas in being encapsulated in fixing body 2 raises the air pressure inside of fixing body 2, since the sealing on the edge sealing 4 between fixing body 2 and the pneumatophore 3 weaken with 6 sealing intensity relative a little less than, can be washed open at first, make fixing body 2 and pneumatophore 3 be interconnected, fuel gas is buffered in the pneumatophore 3, and by the absorption of the hypersobers in the pneumatophore 3, prevented that effectively the fuel gas contact oxygen that leaks from being lighted security incidents such as combustion explosion takes place by Mars etc.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Be with terms such as 6 although this paper has used encapsulation bag 1, fixing body 2, pneumatophore 3, edge sealing 4, pressure release breach 5, sealing to weaken morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (7)
1. the encapsulating structure of a soft-package battery comprises the encapsulation bag (1) that adopts the aluminum plastic film hot melt to form; It is characterized in that, described encapsulation bag (1) have fixing body (2) for packaged battery and at least one sealing setting and in be provided with the pneumatophore (3) of hypersober; Described fixing body (2) all seals by edge sealing (4) all around; Has when the air pressure of (2) in the fixing body increases fixing body (2) and edge sealing (4) between the pneumatophore (3) the sealing weakened region that opening makes fixing body (2) be connected with pneumatophore (3) that can take the lead between described fixing body (2) and the pneumatophore (3).
2. the encapsulating structure of soft-package battery according to claim 1 is characterized in that, described sealing weakened region is the edge sealing (4) between fixing body (2) and the pneumatophore (3); The width of above-mentioned edge sealing (4) is less than the width of edge sealing (4) between fixing body (2) and encapsulation bag (1) each edge.
3. the encapsulating structure of soft-package battery according to claim 1 is characterized in that, described sealing weakened region is to have sealing on the edge sealing (4) between fixing body (2) and the pneumatophore (3) to weaken band (6); Described sealing weakens the sealing intensity of band (6) less than the sealing intensity of edge sealing (4).
4. the encapsulating structure of soft-package battery according to claim 1 is characterized in that, described sealing weakened region is that the edge sealing (4) between fixing body (2) and the pneumatophore (3) is provided with pressure release breach (5); Described pressure release breach (5) is connected with fixing body (2).
5. the encapsulating structure of soft-package battery according to claim 4 is characterized in that, described pressure release breach (5) is del.
6. the encapsulating structure of soft-package battery according to claim 4 is characterized in that, described pressure release breach (5) is circular arc.
7. according to the encapsulating structure of any described soft-package battery among the claim 1-6, it is characterized in that described pneumatophore (3) is 1～4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202598646U CN203225319U (en) | 2013-05-13 | 2013-05-13 | Packaging structure of soft packaged battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202598646U CN203225319U (en) | 2013-05-13 | 2013-05-13 | Packaging structure of soft packaged battery |
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| CN203225319U true CN203225319U (en) | 2013-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013202598646U Expired - Fee Related CN203225319U (en) | 2013-05-13 | 2013-05-13 | Packaging structure of soft packaged battery |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106486629A (en) * | 2016-12-14 | 2017-03-08 | 河北银隆新能源有限公司 | Soft-package battery |
| CN107565078A (en) * | 2017-09-01 | 2018-01-09 | 王武生 | A kind of method for preventing lithium ion battery combustion explosion |
| CN108417757A (en) * | 2017-02-10 | 2018-08-17 | 中信国安盟固利动力科技有限公司 | A kind of safety-type lithium battery and preparation method thereof |
| CN110504392A (en) * | 2018-05-18 | 2019-11-26 | 宁德新能源科技有限公司 | Battery |
| EP3593890A1 (en) * | 2018-07-13 | 2020-01-15 | Ningde Amperex Technology Limited | Adsorption assembly and battery |
| CN112133851A (en) * | 2019-06-25 | 2020-12-25 | 比亚迪股份有限公司 | Battery pack and vehicle with same |
| CN113013545A (en) * | 2021-03-01 | 2021-06-22 | 苏州清陶新能源科技有限公司 | Laminate polymer battery and battery module |
| CN113921983A (en) * | 2021-09-28 | 2022-01-11 | 浙江锋锂新能源科技有限公司 | Battery module with directional pressure relief structure |
-
2013
- 2013-05-13 CN CN2013202598646U patent/CN203225319U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106486629A (en) * | 2016-12-14 | 2017-03-08 | 河北银隆新能源有限公司 | Soft-package battery |
| CN108417757A (en) * | 2017-02-10 | 2018-08-17 | 中信国安盟固利动力科技有限公司 | A kind of safety-type lithium battery and preparation method thereof |
| CN107565078A (en) * | 2017-09-01 | 2018-01-09 | 王武生 | A kind of method for preventing lithium ion battery combustion explosion |
| CN110504392A (en) * | 2018-05-18 | 2019-11-26 | 宁德新能源科技有限公司 | Battery |
| EP3593890A1 (en) * | 2018-07-13 | 2020-01-15 | Ningde Amperex Technology Limited | Adsorption assembly and battery |
| US11121416B2 (en) | 2018-07-13 | 2021-09-14 | Ningde Amperex Technology Limited | Adsorption assembly and battery |
| CN112133851A (en) * | 2019-06-25 | 2020-12-25 | 比亚迪股份有限公司 | Battery pack and vehicle with same |
| CN113013545A (en) * | 2021-03-01 | 2021-06-22 | 苏州清陶新能源科技有限公司 | Laminate polymer battery and battery module |
| CN113013545B (en) * | 2021-03-01 | 2023-10-27 | 苏州清陶新能源科技有限公司 | Soft package battery and battery module |
| CN113921983A (en) * | 2021-09-28 | 2022-01-11 | 浙江锋锂新能源科技有限公司 | Battery module with directional pressure relief structure |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131002 |
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| CF01 | Termination of patent right due to non-payment of annual fee |