CN208781893U - A kind of flexible packing lithium ion battery - Google Patents
A kind of flexible packing lithium ion battery Download PDFInfo
- Publication number
- CN208781893U CN208781893U CN201820913170.2U CN201820913170U CN208781893U CN 208781893 U CN208781893 U CN 208781893U CN 201820913170 U CN201820913170 U CN 201820913170U CN 208781893 U CN208781893 U CN 208781893U
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- CN
- China
- Prior art keywords
- battery body
- battery
- lithium ion
- encapsulating film
- protection board
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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
-
- 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)
Abstract
The utility model belongs to battery technology field, discloses a kind of flexible packing lithium ion battery.The flexible packing lithium ion battery includes the battery body, encapsulating film and protection board for being connected with anode ear and negative electrode lug; encapsulating film is for encapsulating battery body; and encapsulating film is folded at the top of battery body along side at the top of battery body and forms enclosed slot; protection board is set in enclosed slot, is electrically connected respectively with positive and negative tab.The utility model forms enclosed slot by encapsulating film at the top of battery body, the circumferential size of finished battery can be reduced, leave space for battery body, the capacity of battery body is improved will pass through appropriate increase battery body circumferential size, and in the identical situation of battery body capacity, the size of entire finished battery can be reduced, realize the lightening of the electronic equipment for applying the battery.Meanwhile protection board being set in enclosed slot, it can preferably prevent protection board impaired by the collision of external foreign matter, protection protection board works normally.
Description
Technical field
The utility model relates to battery technology field more particularly to a kind of flexible packing lithium ion batteries.
Background technique
Flexible package fills lithium ion battery because with energy density is big, self discharge is small, operating temperature range is wide and does not have environment
The advantages that pollution, is widely used in various digital products and mobile device.
Consumer is higher and higher to the standby requirement using time and portability of product at present, as shown in Figure 1, existing
After the encapsulation of encapsulating film 2 ', the encapsulating film 2 ' of redundance circumferentially, increases lithium ion battery around lithium ion battery
The circumferential size of finished battery is added.In addition, installing protection board at the top of lithium ion battery after the completion of lithium ion battery encapsulation, protect
Backplate is exposed outside encapsulating film, is easy the collision by external foreign matter and is damaged.
Utility model content
The purpose of this utility model is to provide a kind of flexible packing lithium ion batteries, to solve redundance in the prior art
Encapsulating film around lithium ion battery circumferentially, increase finished battery circumferential size and protection board be exposed is encapsulating
Outside film, it is easy the collision by external foreign matter and impaired problem.
For this purpose, the utility model uses following technical scheme:
A kind of flexible packing lithium ion battery, including battery body are connected with anode ear and negative on the battery body
Tab, further includes:
Encapsulating film is used to encapsulate the battery body, and encapsulating film side at the top of the battery body turns down
Enclosed slot is formed at the top of to the battery body；
Protection board is set in the enclosed slot, and the protection board respectively with the anode ear and the negative electrode lug
Electrical connection.
Preferably, the encapsulating film forms folded edges at the top of the battery body.
Preferably, the encapsulating film is run through in the free end of the anode ear, the negative electrode lug, and it is located at the sealing
In slot.
Preferably, positive terminal pad and negative terminal pad are provided on the protection board, the positive terminal pad and the anode
Ear is fixedly connected, and the negative terminal pad is fixedly connected with the negative electrode lug.
Preferably, the battery body is disc-shaped structure.
Preferably, the enclosed slot is circular configuration.
Preferably, the encapsulating film is aluminum plastic film.
The utility model has the beneficial effects that
The utility model forms enclosed slot by encapsulating film at the top of battery body, can reduce the circumferential ruler of finished battery
It is very little, it leaves space for battery body, improves the capacity of battery body will pass through appropriate increase battery body circumferential size, and
And in the identical situation of battery body capacity, the size of entire finished battery can be reduced, realize the electronics for applying the battery
Equipment it is lightening.Meanwhile protection board being set in enclosed slot, preferably it can prevent protection board from being touched by external foreign matter
Hit impaired, protection protection board normal work.
Detailed description of the invention
Fig. 1 is the schematic diagram circumferentially that encapsulating film surround lithium ion battery in the prior art.
Fig. 2 is the top view of battery body provided by the utility model；
Fig. 3 is the structural schematic diagram of flexible packing lithium ion battery provided by the utility model (not with protection board)；
Fig. 4 is the structural schematic diagram of flexible packing lithium ion battery provided by the utility model.
In figure:
1, battery body；11, anode ear；12, negative electrode lug；
2, encapsulating film；21, folded edges；22, enclosed slot；
3, protection board；
2 ', encapsulating film.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
As shown in Figures 2 to 4, a kind of flexible packing lithium ion battery, including battery body 1, encapsulation are present embodiments provided
Film 2 and protection board 3.Anode ear 11 and negative electrode lug 12 are connected on battery body 1, in the present embodiment, battery body 1 is
Disc-shaped structure.Encapsulating film 2 is for encapsulating battery body 1, and encapsulating film 2 is folded to battery sheet along 1 top side of battery body
Enclosed slot 22 is formed at the top of body 1, that is, encapsulating film 2 is packaged in the circumferential part of battery body 1 and turns over along the axial direction of battery body 1
Folding, forms enclosed slot at the top of battery body 1.Encapsulating film 2 is run through in the free end of anode ear 11 and negative electrode lug 12, and is located at envelope
In mouth slot 22, in addition encapsulating film 2, which is located at the top of battery body 1, is partially folded to form folded edges 21, that is, enclosed slot 22
Folded edges 21 are formed on top.Protection board 3 is set in enclosed slot 22, and protection board 3 is electric with anode ear 11, negative electrode lug 12 respectively
Connection.
By the way that encapsulating film 2 is formed enclosed slot 22 at the top of battery body 1, the circumferential size of finished battery can be reduced,
It leaves space for battery body 1, improves the capacity of battery body 1 will pass through the appropriate circumferential size for increasing battery body 1,
And in the identical situation of 1 capacity of battery body, the size of entire finished battery can be reduced, realize the electricity for applying the battery
Sub- equipment it is lightening.In addition, protection board 3 is set in enclosed slot 22, it can preferably prevent protection board 3 by extraneous different
The collision of object is impaired, and protection protection board 3 works normally.By the way that the folding of encapsulating film 2 for being located at 1 top of battery body is formed flanging
Structure 21 can not only enhance package strength, so that 2 uniform force of partial encapsulation film at 1 top of battery body, efficiently solves
Phenomena such as encapsulating film 2 is easy corrugation after packaging, gas rises or leakage, improves the stability of battery appearance and size, also makes
Obtaining battery, contour structures are more beautiful after packaging.
Specifically, in the present embodiment, encapsulating film 2 is aluminum plastic film, can also select other types according to actual needs certainly
Encapsulating film 2.There are two the settings of encapsulating film 2, and pit is provided on one of encapsulating film 2, and the depth of pit is equal to battery sheet
The axial height of body 1, battery body 1 are packed into pit, another encapsulating film 2 lid is then located to the upper surface of battery body 1,
The free end of anode ear 11 and negative electrode lug 12 encapsulating film 2 therethrough, and to turning down at the top of battery body 1.Two are sealed
Film 2 is filled after the alignment of the edge of pit, heat-seal is carried out along the edge of pit, two encapsulating films 2 is located at electricity after the completion of encapsulation
The circumferential part of pond ontology 1 forms enclosed slot 22, then by this portion along the axial direction fold of battery body 1 at the top of battery body 1
The folding of encapsulating film 2 is divided to form folded edges 21.Certainly, in other embodiments, the quantity of encapsulating film 2 can be one, thereon
It is provided with a pit.
As shown in figure 4, being provided with positive terminal pad and negative terminal pad on protection board 3, wherein positive terminal pad and anode ear 11 are logical
It crosses laser welding to be fixedly connected, negative terminal pad is fixedly connected with negative electrode lug 12 by laser welding.
The process of the flexible packing lithium ion battery will be described in detail below.
S1: manufacture has the battery body 1 of anode ear 11 and negative electrode lug 12 according to the production process.
In the production process of battery body 1, first, in accordance with the production technology of battery pole piece, production is with anode ear 11
Positive plate and negative electrode tab with negative electrode lug 12 form battery body 1 then by positive and negative plate and diaphragm together winding shaping,
As shown in Figure 1.In the structure of lithium ion battery, diaphragm is crucial one of interior layer assembly, and the performance of diaphragm determines battery
Interfacial structure, internal resistance etc., directly affect the characteristics such as capacity, circulation and the security performance of battery, its main function is will be electric
The positive and negative electrode in pond is separated, prevent the two poles of the earth contact and it is short-circuit, additionally have the function of electrolyte ion capable of being made to pass through.
S2: pit corresponding with battery body 1 is stamped and formed out on encapsulating film 2 according to the outer dimension of battery body 1.
In the present embodiment, battery body 1 be disc-shaped structure, corresponding outer dimension be battery body 1 diameter and
Thickness.According to the outer dimension of battery body 1, needs to issue and rush box mold accordingly to make the molding of encapsulating film 2, molding procedure
It is called " rushing box ", refers to box mold is rushed in case of heating, one is gone out on encapsulating film 2 can loads battery body 1
Pit gone out on a piece of encapsulating film 2 and the matched pit of 1 diameter and thickness of battery body according to actual needs.
S3: battery body 1 being packed on encapsulating film 2 and is packaged in corresponding pit to battery body 1, and by encapsulating film
2 are packaged in axial direction fold of the circumferential part of battery body 1 along battery body 1, and enclosed slot 22 is formed at the top of battery body 1.
Battery body 1 is put on encapsulating film 2 in corresponding pit, is dried, an edge sealing, is infused electrolyte, is secondary
Edge sealing, chemical conversion and partial volume operation.Specifically, in the present embodiment, encapsulating film 2 is using aluminum plastic film, aluminum plastic film by nylon layer,
Aluminium layer and PP glue-line are constituted, when being packaged to battery body 1, the PP glue of the bilevel aluminum plastic film outside battery body 1
Layer is in contact, by applying pressure to bilevel aluminum plastic film and transmitting heat, so that the PP glue-line fusion of two layers of aluminum plastic film
And it is bonded together, and then realize the edge sealing to the battery body 1 for being coated with aluminum plastic film.During an edge sealing, reserve
Liquid injection port out is filled with electrolyte between battery body 1 and aluminum plastic film by liquid injection port, by secondary after carrying out degasification process
Liquid injection port position is carried out edge sealing by edge sealing.
After the completion of encapsulation, encapsulating film 2 is packaged in the circumferential part of battery body 1 and is turned down along the axial direction of battery body 1,
Enclosed slot 22 is formed at the top of battery body 1.It is folded to formation enclosed slot 22 at the top of battery body 1 by encapsulating film 2, guarantees encapsulation
Finished battery afterwards has stable apparent size.
S4: the folding of encapsulating film 2 for being located at 1 top of battery body is formed into folded edges 21, and protection board 3 is placed in sealing
In slot 22, and it is electrically connected respectively with anode ear 11, negative electrode lug 12.
In order to enhance the intensity and aesthetics of 1 top encapsulation film 2 of battery body, the encapsulation at 1 top of battery body will be located at
Film 2, that is, the encapsulating film 2 of formation enclosed slot 22 are folded into folded edges 21, can make the encapsulating film 2 at 1 top of battery body
Carry out stress release so that 2 uniform force of encapsulating film at the top of battery body 1, can solution encapsulating film 2 effectively encapsulating
It is easy corrugation afterwards, gas rises or phenomena such as leakage, the stability of lithium ion battery appearance and size after improving encapsulation also makes
Obtaining lithium ion battery, contour structures are more beautiful after packaging.
Then, protection board 3 is set in enclosed slot 22, and the positive terminal pad on anode ear 11 and protection board 3 is passed through
Laser welding is fixedly connected, and negative electrode lug 12 is fixedly connected with the negative terminal pad on protection board 3 by laser welding, realizes protection
The connection of plate 3 and tab can protect lithium ion battery not over-discharge, not overcharge, not overcurrent, and there are also the function such as output short circuit protection
Energy.
Protection board 3 is arranged in enclosed slot 22, the overall dimensions of finished battery can be reduced, and can preferably prevent
Only protection board 3 is impaired by the collision of external foreign matter, and protection protection board 3 works normally.
Obviously, the above embodiments of the present invention is used for the purpose of clearly illustrating examples for clearly illustrating the present invention, and
It is not to limit the embodiments of the present invention.For those of ordinary skill in the art, above explained
On the basis of can also make other variations or changes in different ways.There is no need and unable to give thoroughly all embodiments
It lifts.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc. should be included in this
Within the protection scope of utility model claims.
Claims (7)
1. a kind of flexible packing lithium ion battery, including battery body (1), anode ear is connected on the battery body (1)
(11) and negative electrode lug (12), which is characterized in that further include:
Encapsulating film (2) is used to encapsulate the battery body (1), and the encapsulating film (2) is at the top of the battery body (1)
Side is folded at the top of the battery body (1) and forms enclosed slot (22)；
Protection board (3) is set in the enclosed slot (22), and the protection board (3) respectively with the anode ear (11) and
Negative electrode lug (12) electrical connection.
2. flexible packing lithium ion battery according to claim 1, which is characterized in that the top of the enclosed slot (22) is formed
Folded edges (21).
3. flexible packing lithium ion battery according to claim 1, which is characterized in that the anode ear (11), the cathode
The free end of ear (12) is run through the encapsulating film (2), and is located in the enclosed slot (22).
4. flexible packing lithium ion battery according to claim 1, which is characterized in that be provided with just on the protection board (3)
Pole pad and negative terminal pad, the positive terminal pad are fixedly connected with the anode ear (11), the negative terminal pad and the cathode
Ear (12) is fixedly connected.
5. flexible packing lithium ion battery according to claim 1, which is characterized in that the battery body (1) is disc
Structure.
6. flexible packing lithium ion battery according to claim 1, which is characterized in that the enclosed slot (22) is round knot
Structure.
7. flexible packing lithium ion battery according to claim 1, which is characterized in that the encapsulating film (2) is aluminum plastic film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820913170.2U CN208781893U (en) | 2018-06-13 | 2018-06-13 | A kind of flexible packing lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820913170.2U CN208781893U (en) | 2018-06-13 | 2018-06-13 | A kind of flexible packing lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208781893U true CN208781893U (en) | 2019-04-23 |
Family
ID=66149173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820913170.2U Active CN208781893U (en) | 2018-06-13 | 2018-06-13 | A kind of flexible packing lithium ion battery |
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| Country | Link |
|---|---|
| CN (1) | CN208781893U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108630838A (en) * | 2018-06-13 | 2018-10-09 | 广东国光电子有限公司 | A kind of flexible packing lithium ion battery and preparation method thereof |
-
2018
- 2018-06-13 CN CN201820913170.2U patent/CN208781893U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108630838A (en) * | 2018-06-13 | 2018-10-09 | 广东国光电子有限公司 | A kind of flexible packing lithium ion battery and preparation method thereof |
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