CN101677137A - Soft packing lithium ion battery and method of producing same - Google Patents
Soft packing lithium ion battery and method of producing same Download PDFInfo
- Publication number
- CN101677137A CN101677137A CN200810216150A CN200810216150A CN101677137A CN 101677137 A CN101677137 A CN 101677137A CN 200810216150 A CN200810216150 A CN 200810216150A CN 200810216150 A CN200810216150 A CN 200810216150A CN 101677137 A CN101677137 A CN 101677137A
- Authority
- CN
- China
- Prior art keywords
- lithium ion
- ion battery
- lug
- negative electrode
- packing lithium
- 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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Links
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 62
- 238000012856 packing Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 32
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 52
- 238000004519 manufacturing process Methods 0.000 claims description 36
- 229910052759 nickel Inorganic materials 0.000 claims description 26
- 230000005611 electricity Effects 0.000 claims description 23
- 239000004411 aluminium Substances 0.000 claims description 16
- 229910052782 aluminium Inorganic materials 0.000 claims description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 12
- 238000005520 cutting process Methods 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 150000001398 aluminium Chemical class 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000012797 qualification Methods 0.000 abstract description 6
- 238000003466 welding Methods 0.000 description 8
- 210000005069 ears Anatomy 0.000 description 5
- 238000005070 sampling Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000012536 packaging technology Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- 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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- Connection Of Batteries Or Terminals (AREA)
- Secondary Cells (AREA)
Abstract
The invention provides a soft packing lithium ion battery and a method of producing the same. The electrical core of the lithium ion battery is provided with two electrode lugs, and the parts of the electrode lugs, which are exposed outside the electrical core of the lithium ion battery, meet the connection requirements. An adjusting belt with matchable shape and size is electrically connected with the parts of the electrode lugs, which are exposed outside the electrical core of the lithium ion battery, to form a new electrode lug. The soft packing lithium ion battery can better meet the requirement of the center distance between the electrode lugs, and the method of producing the soft packing lithium ion battery is easy and feasible and can be operated on the existing equipment of the battery manufacturer. The method of producing the soft packing lithium ion battery can be also used for modifying the structure of the prior soft packing lithium ion battery so as to ensure that the center distance between a positive electrode lug and a negative electrode lug of the manufactured or modified soft packing lithium ion battery is in a specified fluctuation range, thus the qualification rate of the electrical core of the lithium ion battery is improved, the materials in stock are reduced and the cost is lowered.
Description
[technical field]
The present invention relates to a kind of manufacture method of flexible packing lithium ion battery, particularly a kind of manufacture method that guarantees the accurate flexible packing lithium ion battery of lug centre-to-centre spacing.
The present invention relates to a kind of flexible packing lithium ion battery, particularly a kind of flexible packing lithium ion battery with accurate lug centre-to-centre spacing.
[background technology]
Along with lithium ion battery applications in numerous consumption electronic products, for example mobile phone, notebook computer, PDA product, sound shadow player or the like, the security performance of lithium ion battery is more and more paid close attention to by industry and consumer.Therefore, industry has proposed to install baffle additional on the electric core of lithium ion battery, and the protection of realization includes but not limited to additives for overcharge protection, over, short-circuit protection etc., thereby improves lithium ion battery and use device '.
On the electric core of lithium ion battery, install baffle additional, must control, the centre-to-centre spacing of the pad of the centre-to-centre spacing of lug and PCM (protecting circuit module, protective circuit module) is complementary the centre-to-centre spacing of the lug of electric core.
The following manufacture method of the many employings of existing flexible packing lithium ion battery: preparation adds the anode ear that nickel strap combines by aluminium pole ears, because aluminium pole ears mechanical strength under predetermined size is limited, therefore the aluminium pole ears of positive pole ear just need be electrically connected nickel strap in advance before being connected to positive plate; Negative electrode lug then adopts the nickel lug; Positive and negative lug is welded on the positive and negative plate, through making the electric core of lithium ion battery behind coiling, soldering and sealing, fluid injection, flexible package encapsulation, preliminary filling, the partial volume.The flexible package packaging technology is difficult to align, negative electrode lug is accurately located, the feasible centre-to-centre spacing that is difficult to control positive and negative lug.But; after the centre-to-centre spacing of the pad of baffle is fixing; the centre-to-centre spacing of the positive and negative lug of electricity core only allows to fluctuate in fixing scope, and the precision of flexible package packaging technology has determined the centre-to-centre spacing of the positive and negative lug of electric core to be difficult to the centre-to-centre spacing of the pad of coupling baffle.
In sum, there is the disappearance part in the manufacturing of existing flexible packing lithium ion battery, is necessary to be improved.
[summary of the invention]
The object of the present invention is to provide a kind of manufacture method that guarantees the flexible packing lithium ion battery of high-precision positive and negative lug centre-to-centre spacing.
Another object of the present invention is to provide a kind of flexible packing lithium ion battery with high-precision positive and negative lug centre-to-centre spacing.
To achieve the above object, technical scheme of the present invention is as follows:
The invention provides a kind of manufacture method of flexible packing lithium ion battery, comprise the steps: to provide the electric core of a flexible packing lithium ion battery, be equiped with two lugs on this electricity core, this lug is exposed to the outer exposed part of this electricity core and satisfies connection request; The adjustment band of one geomery coupling is provided; The charged exposed part that is connected in this lug of this adjustment is constituted new lug.
In preferred version of the present invention, the manufacture method of described flexible packing lithium ion battery wherein, before band is adjusted in welding, is exposed to the outer part of this electricity core with this lug and cuts into suitable geomery, and remaining exposed part satisfies connection request.
The manufacture method of described flexible packing lithium ion battery, wherein, this adjustment band is to be welded in the exposed part of this lug and to form electrical connection.
The manufacture method of described flexible packing lithium ion battery, wherein, these two lugs comprise anode ear and negative electrode lug, this anode ear comprises the nickel strap on aluminium strip that stretches into this electricity core and partly expose this electricity core and the exposed portions serve that is connected electrically in this aluminium strip; This negative electrode lug adopts nickel matter lug and enforcement cutting and is electrically connected adjusts the new negative electrode lug of band formation.
The manufacture method of described flexible packing lithium ion battery, wherein, this is adjusted band and adopts nickel matter metal tape.
The manufacture method of described flexible packing lithium ion battery, wherein, the geomery of the negative electrode lug that this is new is matched with this anode ear.
The present invention also provides a kind of flexible packing lithium ion battery, comprises the electric core that is equiped with two lugs, and this lug comprises: stretch into the base band that this electricity core and part are exposed this electricity core; And be connected electrically in adjustment band on the exposed portions serve of this base band.
In preferred version of the present invention, described flexible packing lithium ion battery, wherein, these two lugs comprise anode ear and negative electrode lug, this negative electrode lug is to cut into suitable geomery by this negative electrode lug base band being exposed to the outer part of this electricity core, will adjust the charged new negative electrode lug of exposed part formation that is left on this base band that is connected in again and obtain.
Described flexible packing lithium ion battery, wherein, the adjustment band of this negative electrode lug is to be welded on the base band of this negative electrode lug.
Described flexible packing lithium ion battery, wherein, the base band of this negative electrode lug and adjustment band all adopt nickel matter metal tape.
Described flexible packing lithium ion battery, wherein, these two lugs comprise anode ear and negative electrode lug, this anode ear comprises the nickel strap on aluminium strip that stretches into this electricity core and partly expose this electricity core and the exposed portions serve that is connected electrically in this aluminium strip.
Because adopt above-mentioned technical scheme, beneficial effect of the present invention comprises:
Manufacture method of the present invention is applied in the production and assembling of flexible packing lithium ion battery; can guarantee that the adjustment of positive and negative lug centre-to-centre spacing is controlled to be in specified scope fluctuates; be matched with the centre-to-centre spacing of the pad of baffle, realize the connection between electric core and the baffle.Data in the following table are the sampling observation data to the 10 composition electric cores of product (10 every group):
Requiring centre-to-centre spacing is between 26.0 to 28.0mm, and from the sampling observation data as can be seen, the centre-to-centre spacing qualification rate is 100%, the process capability CPK=1.64 of centre-to-centre spacing, as shown in Figure 6.
The flexible packing lithium ion battery that manufacture method of the present invention and manufacturing are come out has improved the qualification rate of electric core centre-to-centre spacing, and make electric core can with the PCM adapted of more specifications, satisfied requirement better to lug centre-to-centre spacing, and simple possible, can under battery manufacturing firm existing equipment condition, operate.
The present invention not only can be applied to the manufacturing of flexible packing lithium ion battery, can also be applied to the structure of existing flexible packing lithium ion battery is transformed, make the centre-to-centre spacing of positive and negative lug of improved lithium ion battery can be controlled in the fluctuation range of appointment, improve electric core qualification rate, reduce the stock, reduce cost.
[description of drawings]
For further understanding feature of the present invention and technology contents, see also following relevant accompanying drawing of the present invention, yet appended graphic reference and the explanation usefulness of only providing not is to be used for the present invention is limited.
In the accompanying drawing,
Fig. 1 is the structural representation of the electric core of existing flexible packing lithium ion battery;
Fig. 2 is for using the structural representation that manufacture method of the present invention is in the electric core in the production process, and the exposed part of the negative electrode lug of the electric core among the figure is cut into suitable geomery;
Fig. 3 is for using the structural representation that manufacture method of the present invention is in the electric core in the production process, and the remaining exposed part of the negative electrode lug of the electric core among the figure is welded with nickel strap;
Fig. 3 A is the A portion enlarged drawing of Fig. 3;
Fig. 4 is for using the structural representation that manufacture method of the present invention is in the negative electrode lug in the production process, and the exposed part of the negative electrode lug among the figure is cut into suitable geomery;
Fig. 5 is for using the structural representation that manufacture method of the present invention is in the negative electrode lug in the production process, and the remaining exposed part of the negative electrode lug among the figure is welded with nickel strap;
Fig. 6 is applied to the centre-to-centre spacing process capability figure of the sampling observation product of the finished product electricity core that lithium ion battery produces for manufacture method of the present invention.
Each label is in the accompanying drawing:
1 electric core
The nickel strap of aluminium strip 3 anode ears of 2 anode ears
6 solder joints are with in the adjustment of base band 5 negative electrode lugs of 4 negative electrode lugs
7 sealing rings
[embodiment]
Below in conjunction with accompanying drawing,, will make technical scheme of the present invention and other beneficial effects apparent by detailed description to the specific embodiment of the present invention.
Embodiment one: the manufacture method of flexible packing lithium ion battery
Referring to Fig. 1, show the structure of the electric core 1 after the moulding; Anode ear is to be made of welding one nickel strap 3 on the aluminium strip 2, and anode ear is welded on the positive plate; Negative electrode lug is a nickel strap 4, and negative electrode lug is welded on the negative plate; Positive plate and negative plate are reeled or stacked moulding, constitute electric core 1, and the aluminium strip 2 of the fraction of anode ear and nickel strap 3 expose in the outside of electric core 1, and the nickel strap 4 of negative electrode lug also partly exposes the outside at electric core 1.
Referring to Fig. 2, the nickel strap 4 of negative electrode lug is as base band, base band 4 is exposed to electric core 1 outer part cuts into suitable geomery, so-called suitable geomery is meant that remaining exposed part is matched with and adjusts with 5 and satisfy and be electrically connected the requirement of adjusting with 5, just, the geomery of Sheng Xia exposed part is designed to and can be welded on the remaining exposed part with 5 for adjusting.Fig. 4 is the structural representation after nickel matter base band 4 cutting of negative electrode lug, and the observed bearing of Fig. 4 is with respect to the observed bearing of Fig. 1 90 degree that turned clockwise; The cutting mode of base band 4 can adopt the whole bag of tricks such as shearing, die-cut or laser cutting; Fig. 4 example of passing the imperial examinations at the provincial level shows the shape and size of the cutting of base band, section symbols among the figure is the signal of electric core pole piece, the right side of section symbols is the exposed part of base band 4, base band 4 is through the remaining basic quadrate of exposed part in cutting back, promptly illustrate as Fig. 4 example of passing the imperial examinations at the provincial level, the width of base band 4 is 4.0mm, and then the length of Sheng Xia exposed part also is 4.0mm, and design has the tolerance of 0.5mm aborning.
Referring to Fig. 3 and Fig. 3 A, adjustment is electrically connected on base band 4 remaining exposed parts with 5 modes with welding constitutes new negative electrode lug.Adjustment is with 5 to adopt nickel matter metal tape, and the geomery of adjusting with 5 requires design according to negative electrode lug, and generally speaking, new negative electrode lug is with reference to the geomery of anode ear, and it is identical with anode ear promptly to have welded the geomery of adjusting the new negative electrode lug that constitutes with 5 backs.Fig. 5 illustrates the step of welding for example on the basis of Fig. 4, adjusting with 5 length that are welded in the new negative electrode lug that base band 4 remaining exposed parts constitute is 20mm, and design has the tolerance of 1mm aborning.Adjustment with 5 and base band 4 between welding adopt Laser Welding or other welding manner to finish, adopt to be arranged in foursquare four solder joints 6 substantially the parameter of following table suggestion during for welding:
Manufacture method of the present invention, both can directly apply to the manufacturing of flexible packing lithium ion battery, also can be applied to the transformation of existing flexible packing lithium ion battery structure, aborning, the centre-to-centre spacing that can control positive and negative lug improves electric core qualification rate in the fluctuation range of appointment, with the PCM adapted of more specifications, reduce the stock, reduce cost.
Embodiment two: flexible packing lithium ion battery
As known by the technical knowledge, the present invention can realize by other the embodiment that does not break away from its spirit or essential feature.Therefore, above-mentioned disclosed embodiment with regard to each side, all just illustrates, and is not only.All within the scope of the present invention or the change in being equal to scope of the present invention all be included in the invention.
Claims (11)
1, a kind of manufacture method of flexible packing lithium ion battery comprises the steps:
The electric core of one flexible packing lithium ion battery is provided, has been equiped with two lugs on this electricity core, this lug is exposed to the outer exposed part of this electricity core and satisfies connection request;
The adjustment band of one geomery coupling is provided;
The charged exposed part that is connected in this lug of this adjustment is constituted new lug.
2, the manufacture method of flexible packing lithium ion battery according to claim 1 is characterized in that, before being electrically connected the adjustment band, this lug being exposed to the outer part of this electricity core cutting into suitable geomery, and remaining exposed part satisfies connection request.
3, the manufacture method of flexible packing lithium ion battery according to claim 1 and 2 is characterized in that, this adjustment band is to be welded in the exposed part of this lug and to form electrical connection.
4, the manufacture method of flexible packing lithium ion battery according to claim 3, it is characterized in that, these two lugs comprise anode ear and negative electrode lug, and this anode ear comprises the nickel strap on aluminium strip that stretches into this electricity core and partly expose this electricity core and the exposed portions serve that is connected electrically in this aluminium strip; This negative electrode lug adopts nickel matter lug and enforcement cutting and is electrically connected adjusts the new negative electrode lug of band formation.
5, the manufacture method of flexible packing lithium ion battery according to claim 4 is characterized in that, this is adjusted band and adopts nickel matter metal tape.
6, the manufacture method of flexible packing lithium ion battery according to claim 4 is characterized in that, the geomery of the negative electrode lug that this is new is matched with this anode ear.
7, a kind of flexible packing lithium ion battery comprises the electric core that is equiped with two lugs, it is characterized in that this lug comprises:
Stretch into this electricity core and part and expose the base band of this electricity core; And
Be connected electrically in the adjustment band on the exposed portions serve of this base band.
8, flexible packing lithium ion battery according to claim 7, it is characterized in that, these two lugs comprise anode ear and negative electrode lug, this negative electrode lug is to cut into suitable geomery by this negative electrode lug base band being exposed to the outer part of this electricity core, will adjust the charged new negative electrode lug of exposed part formation that is left on this base band that is connected in again and obtain.
9,8 described flexible packing lithium ion batteries as requested is characterized in that, the adjustment band of this negative electrode lug is to be welded on the base band of this negative electrode lug.
10, according to Claim 8 or 9 described flexible packing lithium ion batteries, it is characterized in that the base band of this negative electrode lug and adjust band and all adopt nickel matter metal tape.
11, flexible packing lithium ion battery according to claim 8, it is characterized in that, these two lugs comprise anode ear and negative electrode lug, and this anode ear comprises the nickel strap on aluminium strip that stretches into this electricity core and partly expose this electricity core and the exposed portions serve that is connected electrically in this aluminium strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102161500A CN101677137B (en) | 2008-09-17 | 2008-09-17 | Soft packing lithium ion battery and method of producing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102161500A CN101677137B (en) | 2008-09-17 | 2008-09-17 | Soft packing lithium ion battery and method of producing same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101677137A true CN101677137A (en) | 2010-03-24 |
| CN101677137B CN101677137B (en) | 2013-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102161500A Active CN101677137B (en) | 2008-09-17 | 2008-09-17 | Soft packing lithium ion battery and method of producing same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101677137B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610779A (en) * | 2012-02-07 | 2012-07-25 | 范能文 | Anode tab, soft packing lithium ion battery and method for manufacturing anode tab |
| CN103490031A (en) * | 2013-08-09 | 2014-01-01 | 范能文 | Positive tab, soft package lithium ion battery and method for manufacturing positive tab |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002260630A (en) * | 2001-03-01 | 2002-09-13 | Seiwa Seisakusho:Kk | Connection structure and connection method of electrochemical cell |
| US6641027B2 (en) * | 2001-12-18 | 2003-11-04 | Ngk Spark Plug Co., Ltd. | Method of connecting electric leads to battery tabs |
| CN1983677A (en) * | 2005-12-13 | 2007-06-20 | 中国电子科技集团公司第十八研究所 | Extreme ear structure of flexible-packed battery |
-
2008
- 2008-09-17 CN CN2008102161500A patent/CN101677137B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610779A (en) * | 2012-02-07 | 2012-07-25 | 范能文 | Anode tab, soft packing lithium ion battery and method for manufacturing anode tab |
| CN103490031A (en) * | 2013-08-09 | 2014-01-01 | 范能文 | Positive tab, soft package lithium ion battery and method for manufacturing positive tab |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101677137B (en) | 2013-10-23 |
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Effective date of registration: 20161011 Address after: An Zhen Zhongmu County 451470 Henan city of Zhengzhou Province Liu Zheng Qiao Village Patentee after: ZHENGZHOU BAK BATTERY Co.,Ltd. Address before: Kwai Chung street Beek Industrial Park in Longgang District of Shenzhen City, Guangdong province 518119 Patentee before: SHENZHEN BAK BATTERY Co.,Ltd. |
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