CN206619617U - Soft-package battery - Google Patents
Soft-package battery Download PDFInfo
- Publication number
- CN206619617U CN206619617U CN201720214838.XU CN201720214838U CN206619617U CN 206619617 U CN206619617 U CN 206619617U CN 201720214838 U CN201720214838 U CN 201720214838U CN 206619617 U CN206619617 U CN 206619617U
- Authority
- CN
- China
- Prior art keywords
- soft
- seal portion
- side seal
- package battery
- packaging film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model provides a kind of soft-package battery, its battery core for including two layers of packaging film and being encapsulated between two layers of packaging film.Each layer packaging film includes external protection, interior fused layer and the metal level between external protection and interior fused layer.Two layers of packaging film forms the main part for housing battery core at middle part, is tightly connected around main part and forms closedtop portion and side seal portion, wherein, side seal portion is folded on the side of main part.Soft-package battery also includes：The end face of metal level is exposed in insulating cement, cladding side seal portion, and extends between side seal portion and the side of main part, and side seal portion is adhered on the side of main part.Because side seal portion is also adhered on the side of main part by insulating cement while the end face of metal level is exposed in cladding side seal portion, so as to simplify edge sealing process and save material；Side seal portion bends and is adhered to behind the side of main part, increase only the thickness of one layer of insulating cement, reduces the overall dimensions of soft-package battery, improves the energy density of soft-package battery.
Description
Technical field
The utility model is related to field of batteries, more particularly to a kind of soft-package battery.
Background technology
Soft bag lithium ionic cell mainly carries out battery core encapsulation using aluminum-plastic composite membrane at present, and aluminum plastic film is broadly divided into protection
Layer, metal level and fused layer three-decker.After encapsulated during packaging, trimming, the metal level in the edge on encapsulation side can not be by
Wrap up and exposed, the problems such as being easily caused short circuit.
Current battery edge edge sealing structure mainly has two kinds of structures of encapsulated single folded edges and double-fold.Encapsulated single flanging knot
Structure is to stick insulating tape at the edge on cell package side, then uses mechanical means to encapsulate side and turns up and be pasted onto battery core master
Side side；Double-fold structure is folded to encapsulation at the edge for exposing metal level when encapsulating on body, then will encapsulate side sheet
Body is turned up and is adhered to battery core main body, the edge for exposing metal level is clamped in encapsulation side body and battery core master by turning down twice
Between body.
Two kinds of edge sealing structures can solve the problems, such as the dew aluminium of current conventional batteries, but can all increase the overall chi of battery core
It is very little, reduce the energy density of battery core.For example, after encapsulated single folded edges stick insulating tape at the edge on encapsulation side, in addition it is also necessary to
The encapsulation side turned up is pasted onto in battery core main body by another insulating tape, and two insulating tapes can take larger space, together
When paste insulating tape twice and can also reduce production efficiency；The encapsulation side of double-fold structure is folded into two layers, can also increase encapsulation
The space that side takes, is easily caused the dimension ultra-specification of battery core.
Utility model content
In view of problem present in background technology, the purpose of this utility model is to provide a kind of soft-package battery, it can letter
Change edge sealing process, improve energy density.
To achieve these goals, the utility model provides a kind of soft-package battery, and it includes two layers of packaging film and envelope
Battery core between two layers of packaging film.Each layer packaging film include external protection, interior fused layer and positioned at external protection with it is interior
Metal level between fused layer.Two layers of packaging film forms the main part for housing battery core at middle part, the company of sealing around main part
Connect and form closedtop portion and side seal portion, wherein, side seal portion is folded on the side of main part.Wherein, the soft-package battery is also wrapped
Include：The end face of metal level is exposed in insulating cement, cladding side seal portion, and extends between side seal portion and the side of main part, by side
Envelope portion is adhered on the side of main part.
The beneficial effects of the utility model are as follows：
According in soft-package battery of the present utility model, because insulating cement exposes the end face of metal level in cladding side seal portion
Also side seal portion is adhered on the side of main part simultaneously, therefore is realized respectively without using two single insulating cements and exposes gold
Cladding and the side seal portion for belonging to the end face of layer are bonding with main part, so as to simplify edge sealing process and save material；Meanwhile, side seal portion
Bend and be adhered to behind the side of main part, increase only the thickness of one layer of insulating cement, compared with prior art, reduce Soft Roll
The overall dimensions of battery, improve the energy density of soft-package battery.
Brief description of the drawings
Fig. 1 is the schematic diagram of the embodiment according to soft-package battery of the present utility model；
Fig. 2 is the sectional view that A-A makes along Fig. 1；
Fig. 3 is the schematic diagram of another embodiment according to soft-package battery of the present utility model；
Fig. 4 is the sectional view that B-B makes along Fig. 3；
Fig. 5 is the exploded view according to soft-package battery of the present utility model；
Fig. 6 is another exploded view according to soft-package battery of the present utility model.
Wherein, description of reference numerals is as follows：
The insulating cement of 1 packaging film 3
11 external protection M main parts
Fused layer M1 sides in 12
13 metal level S1 closedtops portions
2 battery core S2 side seals portions
21 lug T thickness directions
Embodiment
Describe soft-package battery of the present utility model in detail with reference to the accompanying drawings.
Referring to figs. 1 to Fig. 6, two layers of packaging film 1 is included according to soft-package battery of the present utility model and two layers of bag is encapsulated in
Fill the battery core 2 between film 1.Each layer packaging film 1 includes external protection 11, interior fused layer 12 and melted positioned at external protection 11 with interior
Close the metal level 13 between layer 12.Two layers of packaging film 1 forms the main part M for housing battery core 2 at middle part, around main part M
It is tightly connected and forms closedtop portion S1 and side seal portion S2, wherein, side seal portion S2 is folded on main part M side M1.Wherein, institute
Stating soft-package battery also includes：Insulating cement 3, cladding side seal portion S2 exposes the end face of metal level 13, and extends to side seal portion S2 and master
Between body portion M side M1, side seal portion S2 is adhered on main part M side M1.
According in soft-package battery of the present utility model, because insulating cement 3 in cladding side seal portion S2 exposes metal level 13
Also side seal portion S2 is adhered on main part M side M1 while end face (i.e. " edge sealing "), therefore without using two individually
Insulating cement realize that the cladding and side seal portion S2 of the end face for exposing metal level 13 are bonding with main part M respectively so that simplify envelope
Side technique simultaneously saves material；Meanwhile, side seal portion S2 bends and is adhered to after main part M side M1, increase only one layer of insulation
The thickness of glue 3 (part extended between side seal portion S2 and main part M side M1), compared with prior art, is reduced
The overall dimensions of soft-package battery, improve the energy density of soft-package battery.
According in soft-package battery of the present utility model, interior fused layer 12 is polypropylene, and external protection 11 is nylon, metal
Layer 13 is aluminium foil or steel foil.
According in soft-package battery of the present utility model, referring to figs. 1 to Fig. 4, side seal portion S2 through-thickness T height is small
In side M1 height.Avoid side seal portion S2 from taking the space of soft-package battery in the thickness directiont, prevent side seal portion S2 is too high from leading
Cause the energy density reduction of soft-package battery.
According in soft-package battery of the present utility model, reference picture 6, two layers of packaging film 1 is two independent packagings
Film.Wherein, pit, another packaging film and packaging film company of sealing around pit are stamped out on a packaging film
Connect and form closedtop portion S1 and side seal portion S2.
According in soft-package battery of the present utility model, reference picture 5, two layers of packaging film 1 is a packaging film, described
Two layers of connected packaging film 1 is formed after one packaging film doubling.Stamp out pit on a packaging film, then doubling with
Pit is sealed, while forming two layers connected of packaging film P.
According in soft-package battery of the present utility model, reference picture 2 and Fig. 4, on side seal portion S2, two layers packaging film 1
Interior fused layer 12 is merged.Because interior fused layer 12 is generally hot melt plastic material (polypropylene), it is possible to pass through
Interior fused layer 12 of two layers of packaging film 1 on side seal portion S2 is merged by hot pressing.
According in soft-package battery of the present utility model, insulating cement 3 is PUR or UV glue.
According in soft-package battery of the present utility model, insulating cement 3 is two-sided tape.
According in soft-package battery of the present utility model, reference picture 1 and Fig. 3, the lug 21 of battery core 2 are stretched from closedtop portion S1
Go out.
According in soft-package battery of the present utility model, reference picture 3 and Fig. 4, insulating cement 3 also extend into the outer of side seal portion S2
Surface.The bond area of insulating cement 3 and side seal portion S2 can be so improved, insulating cement 3 and side seal portion S2 bonding strength is improved.
Claims (10)
1. a kind of soft-package battery, including two layers of packaging film (1) and the battery core (2) that is encapsulated between two layers of packaging film (1)；
Each layer packaging film (1) includes external protection (11), interior fused layer (12) and positioned at external protection (11) and interior fused layer
(12) metal level (13) between；
Two layers of packaging film (1) forms the main part (M) for housing battery core (2) at middle part, is tightly connected simultaneously around main part (M)
Formed closedtop portion (S1) and side seal portion (S2), wherein, side seal portion (S2) is folded on main part (M) side (M1)；
Characterized in that,
The soft-package battery also includes：
Insulating cement (3), cladding side seal portion (S2) exposes the end face of metal level (13), and extends to side seal portion (S2) and main part
(M) between side (M1), side seal portion (S2) is adhered on main part (M) side (M1).
2. soft-package battery according to claim 1, it is characterised in that interior fused layer (12) is polypropylene, external protection
(11) it is nylon, metal level (13) is aluminium foil or steel foil.
3. soft-package battery according to claim 1, it is characterised in that the height of side seal portion (S2) through-thickness (T) is small
Height in side (M1).
4. soft-package battery according to claim 1, it is characterised in that two layers of packaging film (1) is independent Liang Zhangbao
Fill film.
5. soft-package battery according to claim 1, it is characterised in that two layers of packaging film (1) is a packaging film, institute
State and two layers of connected packaging film (1) is formed after a packaging film doubling.
6. soft-package battery according to claim 1, it is characterised in that on side seal portion (S2), two layers packaging film (1) it is interior
Fused layer (12) is merged.
7. soft-package battery according to claim 1, it is characterised in that insulating cement (3) is PUR or UV glue.
8. soft-package battery according to claim 1, it is characterised in that insulating cement (3) is two-sided tape.
9. soft-package battery according to claim 1, it is characterised in that the lug (21) of battery core (2) is stretched from closedtop portion (S1)
Go out.
10. soft-package battery according to claim 1, it is characterised in that insulating cement (3) also extends into the outer of side seal portion (S2)
Surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720214838.XU CN206619617U (en) | 2017-03-07 | 2017-03-07 | Soft-package battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720214838.XU CN206619617U (en) | 2017-03-07 | 2017-03-07 | Soft-package battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206619617U true CN206619617U (en) | 2017-11-07 |
Family
ID=60231885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720214838.XU Active CN206619617U (en) | 2017-03-07 | 2017-03-07 | Soft-package battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206619617U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301106A (en) * | 2018-11-21 | 2019-02-01 | 新余赣锋电子有限公司 | A kind of battery containing soft pack cell |
| CN109411642A (en) * | 2018-12-06 | 2019-03-01 | 新余赣锋电子有限公司 | A kind of battery containing soft pack cell |
| CN109546017A (en) * | 2018-11-21 | 2019-03-29 | 新余赣锋电子有限公司 | A kind of battery containing soft pack cell |
| CN109659452A (en) * | 2018-12-06 | 2019-04-19 | 新余赣锋电子有限公司 | A kind of battery containing soft pack cell |
| WO2019196073A1 (en) * | 2018-04-12 | 2019-10-17 | 宁德新能源科技有限公司 | Battery |
| CN110556587A (en) * | 2019-09-02 | 2019-12-10 | 北京旭江科技有限公司 | Flexible battery and preparation method thereof |
| CN112448070A (en) * | 2019-08-29 | 2021-03-05 | 东莞新能德科技有限公司 | Battery cell structure and battery with same |
| CN113904044A (en) * | 2021-09-30 | 2022-01-07 | 珠海冠宇电池股份有限公司 | Battery and electronic device |
-
2017
- 2017-03-07 CN CN201720214838.XU patent/CN206619617U/en active Active
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111684617A (en) * | 2018-04-12 | 2020-09-18 | 宁德新能源科技有限公司 | Battery with a battery cell |
| CN111684617B (en) * | 2018-04-12 | 2023-08-18 | 宁德新能源科技有限公司 | Battery cell |
| WO2019196073A1 (en) * | 2018-04-12 | 2019-10-17 | 宁德新能源科技有限公司 | Battery |
| JP2021518037A (en) * | 2018-04-12 | 2021-07-29 | 寧徳新能源科技有限公司Ｎｉｎｇｄｅ Ａｍｐｅｒｅｘ Ｔｅｃｈｎｏｌｏｇｙ Ｌｉｍｉｔｅｄ | battery |
| CN109546017A (en) * | 2018-11-21 | 2019-03-29 | 新余赣锋电子有限公司 | A kind of battery containing soft pack cell |
| CN109301106A (en) * | 2018-11-21 | 2019-02-01 | 新余赣锋电子有限公司 | A kind of battery containing soft pack cell |
| CN109659452A (en) * | 2018-12-06 | 2019-04-19 | 新余赣锋电子有限公司 | A kind of battery containing soft pack cell |
| WO2020114524A1 (en) * | 2018-12-06 | 2020-06-11 | 新余赣锋电子有限公司 | Battery comprising soft packaged cell |
| CN109411642A (en) * | 2018-12-06 | 2019-03-01 | 新余赣锋电子有限公司 | A kind of battery containing soft pack cell |
| CN112448070A (en) * | 2019-08-29 | 2021-03-05 | 东莞新能德科技有限公司 | Battery cell structure and battery with same |
| CN110556587A (en) * | 2019-09-02 | 2019-12-10 | 北京旭江科技有限公司 | Flexible battery and preparation method thereof |
| CN113904044A (en) * | 2021-09-30 | 2022-01-07 | 珠海冠宇电池股份有限公司 | Battery and electronic device |
| WO2023051558A1 (en) * | 2021-09-30 | 2023-04-06 | 珠海冠宇电池股份有限公司 | Battery and electronic apparatus |
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| GR01 | Patent grant |