CN209472063U - A kind of airbag hole support construction - Google Patents
A kind of airbag hole support construction Download PDFInfo
- Publication number
- CN209472063U CN209472063U CN201822257507.1U CN201822257507U CN209472063U CN 209472063 U CN209472063 U CN 209472063U CN 201822257507 U CN201822257507 U CN 201822257507U CN 209472063 U CN209472063 U CN 209472063U
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- Prior art keywords
- hole
- airbag
- support construction
- battery
- ontology
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Sealing Battery Cases Or Jackets (AREA)
- Secondary Cells (AREA)
Abstract
The utility model provides a kind of airbag hole support construction, support construction is used to be supported airbag hole in vacuum encapsulation process in soft-package battery, support construction includes the block-like ontology being made of entity, the outer rim shape of ontology is adapted with the inner wall shape that airbag is cheated, and offers the through-hole that multiple depth directions along airbag hole extend on the body.Support construction and battery formation method in the application can prevent airbag hole from deforming or reducing under pressure and high temperature action, guarantee that the gas storage space in airbag hole will not reduce, and then improve the negative pressure value of inside battery, so that the gas generated when Battery formation is flowed in airbag hole in time.
Description
Technical field
The utility model relates to battery technology fields, and in particular to a kind of airbag hole support construction.
Background technique
Lithium ion battery is widely used in because having the characteristics that energy density is high, small in size, voltage is high, environmentally friendly
The utility models such as Portable movable electronic goods and portable mobile power supply；And the polymer Li-ion battery of flexible package then has
The advantages that higher energy density, miniaturization, slimming, lightweight, high safety, long circulation life, be known as follow-on lithium from
Sub- battery.
Existing soft-packaged polymer lithium ion battery uses laminated aluminum film, and aluminum plastic film first realizes punching through punch die stretching
Structure is cheated, and then naked battery core is packed, (referring to makes electricity using chemistry and electrochemical reaction using top side seal encapsulation, chemical conversion
Pole is converted to the process of the positive and negative electrode with electro-chemical activity), vacuum suction encapsulation, capacity check, final molding and Soft Roll
Fill polymer Li-ion battery.In the production process of existing lithium ion battery, especially with the flexible package ion of aluminum plastic film
Battery, battery during preliminary filling since the oxidation of electrolyte and reduction can generate bulk gas, if these gas positive and negative anodes
In the presence of the chemical property and security performance that will seriously affect battery in the form of bubble between piece, so flexible packing lithium ion
Battery can reserve an airbag hole in process of production and be used to store the gas generated during preliminary filling.But after having infused electrolyte
Vacuum is carried out when sealing in advance, due to the heat diffusion of end socket can make airbag hole plastic-aluminum film inner layer it is partially fused together, lead to gas
Effective gas storage volume in bag hole is reduced.
Utility model content
In view of this, the purpose of this utility model is to provide one kind, and airbag hole gas storage volume can be effectively prevent to reduce,
The airbag hole support construction for improving battery performance simultaneously, improving battery production qualification rate, reducing production cost.
In order to achieve the above objectives, the utility model uses following technical scheme:
A kind of airbag hole support construction, for be supported airbag hole in vacuum encapsulation process in soft-package battery,
The support construction includes the block-like ontology being made of entity, the inner wall shape of the outer rim shape of the ontology and airbag hole
Shape is adapted, and offers the through-hole that multiple depth directions along airbag hole extend on the body.
Preferably, the ontology is made of PP, PE or PET material.
Preferably, multiple through-holes are arranged on the body according to the form that n row m is arranged.
Preferably, the shape of the through-hole is round, oval, rectangular, diamond shape, triangle or other polygons.
Airbag in the application cheats support construction, block-like support construction is placed in airbag hole, in Battery formation
Airbag hole is supported in the process, prevents airbag hole from deforming or reducing under pressure and high temperature action, guarantees the storage in airbag hole
Headroom will not reduce, and then improve the negative pressure value of inside battery, and the gas generated when Battery formation is enable to flow to gas in time
In bag hole.Effectively avoid cell internal pressure is excessive encapsulation side is caused to be softened, electrolyte outflow causes battery packaging film rotten
The case where erosion, occurs.
Detailed description of the invention
By referring to the drawings to the description of the utility model embodiment, the above-mentioned and other mesh of the utility model
, feature and advantage will be apparent from, in the accompanying drawings:
Fig. 1 shows the integral arrangement structure chart in the airbag hole and main hole of specific embodiment of the present invention offer；
Fig. 2 shows the schematic diagrames for the support construction that specific embodiment of the present invention provides；
Fig. 3 shows the structural schematic diagram before the Battery formation of specific embodiment of the present invention offer.
In figure,
1, airbag is cheated；2, main hole；3, support construction；31, ontology；32, through-hole；4, packaging material；5, battery core；6, conductive
Part；7, insulating layer.
Specific embodiment
The utility model is described below based on embodiment, it should be understood by one skilled in the art that mentioning herein
The attached drawing of confession is provided to the purpose of explanation, and attached drawing is not necessarily drawn to scale.
Unless the context clearly requires otherwise, "include", "comprise" otherwise throughout the specification and claims etc. are similar
Word should be construed as the meaning for including rather than exclusive or exhaustive meaning；That is, be " including but not limited to " contains
Justice.
Illustrate: orientation shown in Fig. 1 is subject in the orientation such as upper and lower, left and right for being related to during the application description.
As shown in Figure 1 and Figure 2, this application provides a kind of airbags to cheat support construction, for carrying out vacuum seal in soft-package battery
Airbag hole 1 is supported during dress, prevents airbag hole 1 because pressure or high temperature deform, avoids being used in airbag hole 1
The space of storage gas becomes smaller.Support construction 3 includes the block-like ontology 31 being made of entity, the outer rim shape and gas of ontology 31
The inner wall shape in bag hole 1 is adapted, and the through-hole 32 that multiple depth directions along airbag hole 1 extend is offered on ontology 31.Its
In, through-hole 32 circulates for supplied gas and forms the storage space of gas, and the ontology 31 being made of entity plays main support work
With the outer wall of ontology 31 is in contact with the inner wall in airbag hole 1, is supported in vacuum encapsulation process to airbag hole 1, works as airbag
When hole 1 deforms in encapsulation process, the inner wall in airbag hole 1 can be tightly attached on the outer wall of ontology 31, and ontology 31 can prevent
The deformation of its further occurrence guarantees that airbag hole 1 has enough gas storage spaces.
Further, the distance between outer rim of two through-holes 32 of arbitrary neighborhood is greater than or equal to 20-30mm.It is close
The distance between the outer rim of the through-hole 32 of the inner wall in airbag hole 1 and the inner wall in airbag hole 1 are 10 to 15mm.To guarantee that ontology 31 has
There is enough intensity, and then be supplied to the enough supports of side wall in airbag hole 1, prevents airbag hole 1 from deforming.Further
Ground, multiple through-holes 32 are arranged on ontology 31 according to the form that n row m is arranged, and form is specifically arranged and does not limit, naturally it is also possible to
It arbitrarily arranges, as long as guaranteeing that there is ontology 31 enough intensity to carry out enough supports to airbag hole 1.Through-hole 32
Moderate number, preferably by 32 concentrated setting of through-hole at the middle part of ontology 31, to guarantee that the edge of ontology 31 has enough thickness
Degree avoids deforming in vacuum encapsulation process with the side wall in airbag hole 1.The not excessive limit of the shape of through-hole 32
System, it is preferred that the shape of through-hole 32 is round, oval, rectangular, diamond shape, triangle, polygon or abnormity.It is further preferred that
Ontology 31 is made of PP, PE or PET material.
Further, support construction 3 and the inner wall in airbag hole 1 are fixed together, and prevent from supporting in encapsulation process
Relative displacement is generated between structure 3 and the inner wall in airbag hole 1.For example, support construction 3 can be cheated by way of stickup with airbag
1 inner wall is fixedly connected, to guarantee mounting stability and reliability between the two.
As shown in figure 3, being the structure of inside battery before cell package is melted into, the packaging material 4 of battery is aluminum plastic film, right
Aluminum plastic film carries out punching press, is formed on main hole 2 and airbag hole 1, the side in main hole 2 is arranged in airbag hole 1, specific at one
Embodiment in, main hole 2 and airbag hole 1 are respectively there are two tools, and on a column, two airbags hole 1 is arranged one for two main 2 settings of hole
On column, the right side in main hole 2 is arranged in airbag hole 1, and the main hole 2 of the volume ratio in airbag hole 1 is small.Wherein, main hole 2 is used for placing battery
Battery core 5, gas of the airbag hole 1 for being discharged in storage batteries formation process from main hole 2, support construction 3 is arranged in airbag
In hole 1.The conduct piece 6 being connected with battery core 5 is additionally provided on aluminum plastic film, the outside of conduct piece 6 is coated with insulating layer 7, preferably
Ground, insulating layer 7 is glue-line, to guarantee that aluminum plastic film will not be contacted with conduct piece 6, guarantees the stability of battery forming process and reliable
Property.
It, can be in battery forming process, by gas caused by inside battery electrochemical reaction by the way that support construction 3 is arranged
Physical efficiency effectively detaches, and during solving normal pressure chemical conversion, the gas that inside battery electrochemical reaction generates can not be arranged from inside battery
Out the problem of
Present invention also provides a kind of soft-package battery chemical synthesizing methods, and as shown in connection with fig. 3, battery has packaging material 4, packaging
Material 4 is made of aluminum plastic film, has main hole 2 and airbag hole 1 on packaging material 4, and soft-package battery chemical synthesizing method includes:
Battery core 5 is placed in main hole 2, above-mentioned support construction 3 is fixed in airbag hole 1, after battery liquid-filling, will be supported
Structure 3 is encapsulated in airbag hole 1.After the completion of encapsulation, battery is stood into scheduled duration at a predetermined temperature.Wherein, predetermined temperature
It is 40 DEG C to 50 DEG C, scheduled duration is 40 hours to 60 hours.During cell package, vacuum values be -0.075MPa extremely
Support construction is packaged under the negative pressure state of -0.095MPa.
Battery is melted into using the battery formation method in the application, the safety of lithium ion battery can be effectively improved
Performance and chemical property improve production qualification rate, promote lithium ion cycle life, assist the active material in battery core 5 effective
It plays a role.
Support construction and battery formation method in the application, can be by the air-flow generated in battery forming process in pressure difference
It is drained under effect in airbag hole, avoids the excessive edge for causing encapsulation of cell internal pressure from being softened, outside the electrolyte of battery
Leakage causes to corrode to the packaging of battery.Due to having airbag hole on the packaging material of battery, airbag is provided with support construction in hole,
The negative pressure space of inside battery can effectively be increased, contacted closely between pole piece in battery forming process, reach reduction battery pole
The effect for changing, improving battery electrochemical projection, contributes to form stable SEI film, improves the work of battery plus-negative plate gram specific capacity
With effectively improving battery cycle life, improve battery production rate, qualification rate.
Those skilled in the art will readily recognize that above-mentioned each preferred embodiment can be free under the premise of not conflicting
Ground combination, superposition.
The above is only the preferred embodiments of the utility model, are not intended to limit the utility model, for art technology
For personnel, the utility model can have various modifications and changes.It is all made within the spirit and principle of the utility model
Any modification, equivalent substitution, improvement and etc. should be included within the scope of protection of this utility model.
Claims (4)
1. a kind of airbag cheats support construction, for be supported airbag hole in vacuum encapsulation process in soft-package battery,
It is characterized in that, the support construction includes the block-like ontology being made of entity, the outer rim shape of the ontology and the airbag
The inner wall shape in hole is adapted, and offers the through-hole that multiple depth directions along airbag hole extend on the body.
2. support construction according to claim 1, which is characterized in that the ontology is made of PP, PE or PET material.
3. support construction according to claim 1, which is characterized in that multiple through-holes are arranged according to the form that n row m is arranged
On the body.
4. support construction according to claim 1, which is characterized in that the shape of the through-hole is round, ellipse, side
Shape, diamond shape, triangle or other polygons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822257507.1U CN209472063U (en) | 2018-12-29 | 2018-12-29 | A kind of airbag hole support construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822257507.1U CN209472063U (en) | 2018-12-29 | 2018-12-29 | A kind of airbag hole support construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209472063U true CN209472063U (en) | 2019-10-08 |
Family
ID=68091969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822257507.1U Active CN209472063U (en) | 2018-12-29 | 2018-12-29 | A kind of airbag hole support construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209472063U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112729456A (en) * | 2020-12-16 | 2021-04-30 | 湖北亿纬动力有限公司 | Design method of soft-package battery cell air bag |
-
2018
- 2018-12-29 CN CN201822257507.1U patent/CN209472063U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112729456A (en) * | 2020-12-16 | 2021-04-30 | 湖北亿纬动力有限公司 | Design method of soft-package battery cell air bag |
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