CN207624741U - A kind of soft pack cell with corrosion proof function - Google Patents
A kind of soft pack cell with corrosion proof function Download PDFInfo
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- CN207624741U CN207624741U CN201721729792.1U CN201721729792U CN207624741U CN 207624741 U CN207624741 U CN 207624741U CN 201721729792 U CN201721729792 U CN 201721729792U CN 207624741 U CN207624741 U CN 207624741U
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- Prior art keywords
- isolation pocket
- plastic film
- aluminum plastic
- electrolyte
- proof function
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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
Abstract
The utility model is related to a kind of soft pack cells with corrosion proof function comprising core body, isolation pocket, packaging aluminum plastic film and electrolyte.In the utility model, packaging aluminum plastic film includes the separation layer of inside and the aluminium layer in outside, and setting isolation pocket coats core body, while electrolyte is stored in isolation pocket, isolation pocket is integrally put into packaging aluminum plastic film and is packaged.Because electrolyte is stored in isolation pocket, electrolyte separates with packaging aluminum plastic film, and isolation pocket will not occur pullling and tearing damage in the processing procedure of packaging aluminum plastic film, or it is impacted small, so can stop the contact of electrolyte and the aluminium layer for packing aluminum plastic film completely, leaking for electrolyte is effectively prevented, the aluminium layer of packaging aluminum plastic film is avoided to be corroded, it prevents battery core situations such as damaged, leakage and flatulence occur, improves the security performance of lithium ion battery.
Description
Technical field
The utility model is related to battery technology field more particularly to a kind of soft pack cells with corrosion proof function.
Background technology
With the continuous development of electronic product, requirement of the people to battery technology is higher and higher, and lithium ion battery is because of its body
Product is small, service life is long, security performance is high and advantages are used widely compared to conventional batteries are more environmentally-friendly etc..
Existing lithium ion battery is that one kind by lithium metal or lithium alloy is negative material, using non-aqueous solution as electrolyte
Battery.It since the chemical property of lithium metal is very active, is easy to happen corrosion and battery structure is caused to damage, to improve lithium-ion electric
The security performance in pond needs to be packaged the core body of lithium ion battery to completely cut off air and water, forms soft pack cell, existing
Soft pack cell generally outer layer covers pack aluminum plastic film, packaging aluminum plastic film in processing procedure, PP layers of internal layer is by a degree of
It pulls extension even to tear, so that the electrolyte being stored in packaging aluminum plastic film is leaked through PP layers of crack, to be in direct contact
The aluminium layer for packing aluminum plastic film, the security risk for causing battery core to corrode, when battery core flatulence leakage, the security performance of product drastically under
Drop.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of soft pack cell with corrosion proof function.
Technical solution is used by the utility model solves above-mentioned technical problem：
A kind of soft pack cell with anticorrosive function, including：Core body, isolation pocket, packaging aluminum plastic film and electrolyte,
The packaging aluminum plastic film includes the separation layer of inside and the aluminium layer in outside, and the isolation pocket coats the core body, the electricity
Solution liquid is stored in the isolation pocket, and the isolation pocket is put into the packaging aluminum plastic film and is packaged.
In a preferred embodiment, the isolation pocket top sets through-hole, and the isolation pocket top sets protrusion, described
Through-hole is opened up among raised, the through-hole is matched with the lug of the core body, passed through for the lug.
In a preferred embodiment, gel is set between the through-hole and the lug.
In a preferred embodiment, the isolation pocket is equipped with convenient for the core body is put into the isolation pocket
First opening.
In a preferred embodiment, the isolation pocket, which is equipped with, is convenient for the electrolyte filling to the isolation
The second opening in bag.
In a preferred embodiment, the isolation pocket is identical as the material of the separation layer.
In a preferred embodiment, the isolation pocket is PP bags, and the separation layer is PP layers.
In a preferred embodiment, the isolation pocket is PE bags, and the separation layer is PE layers.
The utility model has the beneficial effects that：
In the utility model, packaging aluminum plastic film includes the separation layer of inside and the aluminium layer in outside, and setting isolation pocket coats
Core body, while electrolyte is stored in isolation pocket, isolation pocket is integrally put into packaging aluminum plastic film and is packaged.Because of electrolyte
It is stored in isolation pocket, electrolyte separates with packaging aluminum plastic film, and isolation pocket will not be drawn in the processing procedure of packaging aluminum plastic film
Pull extension and tearing damage or impacted small, it is possible to stop isolation pocket electrolyte inside completely and pack aluminum plastic film
Aluminium layer contacts, and effectively prevents leaking for electrolyte, avoids the aluminium layer of packaging aluminum plastic film from being corroded, it is therefore prevented that battery core is broken
Situations such as damage, leakage and flatulence, improve the security performance of lithium ion battery.
Description of the drawings
The utility model is described further with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of one embodiment of the utility model isolation pocket；
Fig. 2 is the schematic diagram of another angle of Fig. 1 embodiments；
Fig. 3 is the structural schematic diagram of one embodiment of the utility model core body；
Fig. 4 is the structural schematic diagram for the isolation pocket that the utility model is packed into core body；
Fig. 5 is the structural schematic diagram of the utility model isolation pocket bottom package；
Fig. 6 is the schematic diagram that the utility model isolation pocket is integrally put into packaging aluminum plastic film；
Fig. 7 is to form a kind of one embodiment of the soft pack cell with corrosion proof function after the utility model trimming edge sealing
Structural schematic diagram.
Specific implementation mode
The technique effect of the design of the utility model, concrete structure and generation is carried out below with reference to embodiment and attached drawing
Clear, complete description, to be completely understood by the purpose of this utility model, scheme and effect.It should be noted that not conflicting
In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.
It should be noted that unless otherwise specified, when a certain feature is referred to as " fixing ", " connection " is in another feature,
It can directly fix, be connected in another feature, can also fix, be connected in another feature indirectly.In addition, this
The descriptions such as the upper and lower, left and right used in utility model are only the phase relative to each component part of the utility model in attached drawing
For mutual position relationship.
In addition, unless otherwise defined, the technology of all of technologies and scientific terms used here by the article and the art
The normally understood meaning of personnel is identical.Term used in the description is intended merely to description specific embodiment herein, without
It is to limit the utility model.Term " and or " used herein includes appointing for one or more relevant Listed Items
The combination of meaning.
Fig. 1 to Fig. 7 is the composed structure schematic diagram of the utility model embodiment, with reference to Figure of description, should have battery core
The soft pack cell of corrosion proof function includes：
Core body 1, isolation pocket 2 pack aluminum plastic film 3 and electrolyte.
In the utility model, packaging aluminum plastic film 3 includes the separation layer 301 of inside and the aluminium layer 302 in outside, isolation pocket 2
Core body 1 is coated, electrolyte is stored in isolation pocket 2, and finally isolation pocket 2 is put into packaging aluminum plastic film 3 and is packaged.
Because electrolyte is stored in isolation pocket 2, electrolyte separates with packaging aluminum plastic film 3, and isolation pocket 2 will not be in packaging aluminium
Occur pullling extension and tearing damage in the processing procedure of plastic film 3, or only by small effect, it is possible to blocking electrolysis completely
The contact of liquid and the aluminium layer 302 of packaging aluminum plastic film 3, effectively prevents leaking for electrolyte, avoids the aluminium layer of packaging aluminum plastic film 3
302 are corroded, it is therefore prevented that situations such as damaged, leakage and flatulence occurs in battery core, improves the security performance of lithium ion battery.
In the present embodiment, it is preferable that as shown in Figure 1, Figure 2, Figure 3 shows, the top of isolation pocket 2 sets protrusion 201, protrusion 201
Through-hole 201a is arranged in centre, and through-hole 201a is matched with the lug 101 of core body 1 and passed through for lug 101, instant rolled core 1
Lug 101 is connect with external circuitry.
In the present embodiment, it is preferable that gel is set between lug 101 and through-hole 201a, gel seals,
Prevent the situation that electrolyte is leaked by through-hole 201a.
In the present embodiment, it is preferable that as shown in Figure 1, isolation pocket 2 is equipped with the first opening 202, the first opening 202 is set
It sets convenient for core body 1 to be put into isolation pocket 2.Preferably, the first opening 202 is arranged in the bottom end of isolation pocket 2, with isolation pocket 2
On through-hole 201a position it is opposite, lug 101 is not interfered across through-hole 201a.As shown in figure 5,2 bottom of isolation pocket
First opening 202 encapsulation.
In the present embodiment, it is preferable that isolation pocket 2 is equipped with the second opening 203, and the setting of the second opening 203, being convenient for will be electric
Solution liquid is filled by the second opening 203 in isolation pocket 2.Later by 203 encapsulation of the second opening.
In the present embodiment, it is preferable that as shown in fig. 6, be put into packaging aluminum plastic film 3 by isolation pocket 2 is whole, and with packaging plastic-aluminum
The inside separation layer 301 of film 3 contacts, and isolation pocket 2 is identical as the material of separation layer 301, and the fusing point of the two is consistent, can use heat
The two is preferably packaged together by envelope method, improves the integraty of battery.For example, the material of the two can be all PP or PE,
When isolation pocket 2 is PP bags, separation layer 301 is PP layers；When isolation pocket 2 is PE bags, separation layer 301 is PE layers.
Certainly, it is not specifically limited herein for the material of isolation pocket and separation layer, such as can also be that other are fusible
Plastic material, as long as insulation and seal isolation can be played the role of.
In the present embodiment, it is preferable that Fig. 7 is above preferred embodiment combination, one kind for being formed after trimming edge sealing have it is anti-
Corrode the structural schematic diagram of the soft pack cell of function.
It is to be illustrated to the preferable implementation of the utility model, but the invention is not limited to the reality above
Example is applied, those skilled in the art can also make various equivalent variations without departing from the spirit of the present invention
Or replace, these equivalent deformations or replacement are all contained in the application claim limited range.
Claims (8)
1. a kind of soft pack cell with corrosion proof function, which is characterized in that including：Core body, isolation pocket, packaging aluminum plastic film with
And electrolyte, the packaging aluminum plastic film includes the separation layer of inside and the aluminium layer in outside, and the isolation pocket coats the core
Body, the electrolyte are stored in the isolation pocket, and the isolation pocket is put into the packaging aluminum plastic film and is packaged.
2. the soft pack cell according to claim 1 with corrosion proof function, it is characterised in that：The isolation pocket top is set
Protrusion, the protrusion is intermediate to open up through-hole, and the through-hole is matched with the lug of the core body, passed through for the lug.
3. the soft pack cell according to claim 2 with corrosion proof function, it is characterised in that：The through-hole with it is described
Gel is set between lug.
4. the soft pack cell according to claim 1 with corrosion proof function, it is characterised in that：The isolation pocket is equipped with
Convenient for the core body to be put into the first opening of the isolation pocket.
5. the soft pack cell according to claim 1 with corrosion proof function, it is characterised in that：The isolation pocket is equipped with
Convenient for the second of the electrolyte filling to the isolation pocket is open.
6. the soft pack cell according to any one of claim 1 to 5 with corrosion proof function, it is characterised in that：It is described
Isolation pocket is identical as the material of the separation layer.
7. the soft pack cell according to claim 6 with corrosion proof function, it is characterised in that：The isolation pocket is PP
Bag, the separation layer are PP layers.
8. the soft pack cell according to claim 6 with corrosion proof function, it is characterised in that：The isolation pocket is PE
Bag, the separation layer are PE layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721729792.1U CN207624741U (en) | 2017-12-13 | 2017-12-13 | A kind of soft pack cell with corrosion proof function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721729792.1U CN207624741U (en) | 2017-12-13 | 2017-12-13 | A kind of soft pack cell with corrosion proof function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207624741U true CN207624741U (en) | 2018-07-17 |
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ID=62823558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721729792.1U Active CN207624741U (en) | 2017-12-13 | 2017-12-13 | A kind of soft pack cell with corrosion proof function |
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| Country | Link |
|---|---|
| CN (1) | CN207624741U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449481A (en) * | 2018-12-12 | 2019-03-08 | 肇庆遨优动力电池有限公司 | A kind of soft-package battery preparation method of anti-internal corrosion |
| CN110429211A (en) * | 2019-08-07 | 2019-11-08 | 珠海格力电器股份有限公司 | Core component and battery |
-
2017
- 2017-12-13 CN CN201721729792.1U patent/CN207624741U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449481A (en) * | 2018-12-12 | 2019-03-08 | 肇庆遨优动力电池有限公司 | A kind of soft-package battery preparation method of anti-internal corrosion |
| CN110429211A (en) * | 2019-08-07 | 2019-11-08 | 珠海格力电器股份有限公司 | Core component and battery |
| CN110429211B (en) * | 2019-08-07 | 2020-11-20 | 珠海格力电器股份有限公司 | Roll up core subassembly and battery |
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