CN104009256B - The open formation technique of lithium-ion-power cell - Google Patents
The open formation technique of lithium-ion-power cell Download PDFInfo
- Publication number
- CN104009256B CN104009256B CN201310061832.XA CN201310061832A CN104009256B CN 104009256 B CN104009256 B CN 104009256B CN 201310061832 A CN201310061832 A CN 201310061832A CN 104009256 B CN104009256 B CN 104009256B
- Authority
- CN
- China
- Prior art keywords
- battery
- conduction pipe
- block
- chemical conversion
- 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.)
- Expired - Fee Related
Links
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000006243 chemical reaction Methods 0.000 claims abstract description 21
- 239000000126 substance Substances 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 239000012530 fluid Substances 0.000 claims abstract description 4
- 238000002347 injection Methods 0.000 claims abstract description 4
- 239000007924 injection Substances 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims description 7
- 239000004568 cement Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 230000008602 contraction Effects 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims 1
- 239000012528 membrane Substances 0.000 claims 1
- 238000003780 insertion Methods 0.000 abstract description 3
- 230000037431 insertion Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 11
- 238000002788 crimping Methods 0.000 description 7
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 6
- 229910001416 lithium ion Inorganic materials 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Primary Cells (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses a kind of open formation technique of lithium-ion-power cell, it comprises the following steps：1）Battery core is packaged in battery container；2）Fluid injection sealing is carried out to battery；3）The pole piece drawn from battery core is soldered in block, then block is installed on housing；4）By the battery transfer of foregoing assembling to formation workshop；5）Conduction pipe is inserted in block；6）Battery is melted into, now, battery is discharged in gas caused by chemical conversion from conduction pipe；7）Extract conduction pipe out, then passage of the conduction pipe formed in insertion block is sealed with seal.Compared with prior art, by installing a flexible etch-proof rubbery sealed body additional on battery cap, it can be sealed before chemical conversion, in chemical conversion, a conduction pipe is inserted on rubbery sealed body, gas caused by chemical conversion will discharge from conduction pipe, after chemical conversion terminates, be sealed up the top of rubbery sealed body with steel ball.
Description
【Technical field】
The present invention relates to the open formation work of technical field of lithium ion, more particularly to a kind of lithium-ion-power cell
Skill.
【Background technology】
Lithium-ion-power cell has high-energy-density and various excellent properties, and therefore, its application is increasingly popularized.Cylinder
Shape lithium ion battery has the size of standardization because of it, ripe manufacturing process and manufacturing equipment, can be produced in batches, therefore,
Occupy important share in lithium ion battery market.
But, existing lithium ion battery there is also it is following notable the shortcomings that, it is mainly manifested in：Because lithium ion is to water
Sensitivity, thus in battery manufacture, if there is micro moisture in pole piece or electrolyte, then, in Battery formation
Also substantial amounts of gas can be produced during technique.These gases can not excrete in the battery case of closing, when battery at work,
Battery can also produce heat, and with the continuous aggregation of heat, air pressure inside constantly increases, and excessive air pressure is likely to result in block
Safety device is opened, and so as to cause battery to be scrapped, even more serious is likely to result in battery explosion.
In view of this, it is necessory to provide a kind of open formation technique of lithium-ion-power cell to solve the above problems.
【The content of the invention】
It is an object of the invention to provide a kind of open formation technique of lithium-ion-power cell, so as to which battery is existed
Caused gas is discharged in time during chemical conversion, it is ensured that the safe handling of battery.
To achieve these goals, the invention provides a kind of open formation technique of lithium-ion-power cell, it includes
Following steps：1）Battery core is packaged in battery container；2）Fluid injection sealing is carried out to battery；3）The pole piece that will be drawn from battery core
It is soldered in block, then block is installed on housing；4）By the battery transfer of foregoing assembling to formation workshop；5）In block
Insert conduction pipe；6）Battery is melted into, now, battery is discharged in gas caused by chemical conversion from conduction pipe；7）Extract out
Conduction pipe, then seal conduction pipe with seal and inserting the passage that is formed during block.
The a kind of of open formation technique as lithium-ion-power cell of the present invention improves, the step 3）In block bag
Cover plate, burst disk and sealed outer ring are included, block is provided with one through cover plate and the through hole of burst disk, laid in through hole
Plastic cement seal overcoat, the plastic cement seal are arranged with host cavity outside, rubbery sealed body are installed in host cavity.
The a kind of of open formation technique as lithium-ion-power cell of the present invention improves, the step 5）In conduction pipe
The cup to be linked together including syringe needle and with syringe needle.
The a kind of of open formation technique as lithium-ion-power cell of the present invention improves, in addition to step 8）, in rubber
Welded together again with metal steel ball with cap sealed on seal.
Compared with prior art, the present invention is by installing a flexible etch-proof rubber additional on battery cap
It seal, can be sealed before chemical conversion, in chemical conversion, a conduction pipe, gas caused by chemical conversion are inserted on rubbery sealed body
It will discharge from conduction pipe, after chemical conversion terminates, be sealed up the top of rubbery sealed body with steel ball.Its main benefit exists
In：It will be discharged in gas caused by Battery formation from needle tubing, the possibility of potential safety hazard is caused so as to reduce it to battery.
【Brief description of the drawings】
Fig. 1 is lithium-ion-power cell front view involved in the present invention；
Fig. 2 is the sectional view of lithium-ion-power cell part shown in Fig. 1.
【Embodiment】
In order that the purpose of the present invention, technical scheme and advantageous effects become apparent from understanding, below in conjunction with accompanying drawing and
Embodiment, the present invention will be described in further detail.It should be appreciated that the specific implementation described in this specification
Mode is not intended to limit the present invention just for the sake of explaining the present invention.
Fig. 1-2 is referred to, a kind of lithium-ion-power cell, it includes housing 10 and for being fastened on lithium-ion battery shell
On, primarily serve sealed cell housing and protect the block of battery effect safe to use.
Block includes cover plate 80, burst disk 30 and sealed outer ring 20, between the cover plate 80 and burst disk 30 successively
Together, the sealed outer ring 20 is coated on the edge of carrier board 80 and burst disk 30 palette.
Cover plate is step disk, and it is provided with an annular base portion, and the annular inboard edge of base portion, which raises up to be formed, to incline
Inclined portion and top, two cover board holes are symmetrically provided with by rake.
The shape of burst disk is approximate with cover plate, and the burst disk is made of relatively thin metal aluminium flake, and its center is set
There is the diaphragm of projection, the raised diaphragm is also made of metallic aluminium.Being surrounded by for the raised diaphragm is double
To indentation, when battery assembles, by the tab welding of battery core to diaphragm, because metal aluminium material is soft, therefore work as electricity
When pond is broken down, when its internal air pressure for producing gas reaches certain numerical value, gas can break through diaphragm and discharge, that is, protect
Film will be disconnected along at two-way indentation, and the lug being so connected on diaphragm will be torn with diaphragm, so as to cut off electricity
The loop in pond.
Sealed outer ring is step hollow cylindrical, wherein be relatively large in diameter for blind end, it is directly less to keep end.
Blind end slightly forms contraction flow region close to the outer wall kept at end to contract.The inside of sealed outer ring offers step through hole,
Through-hole diameter at blind end is adapted with the external diameter of cover plate.Side wall around through hole is provided with the inside bulge loop of a circle.It is described
Sealed outer ring is made of poly- second propylene material, thus has preferable heat-resisting quantity and insulating properties.Due to poly- second propylene material
For prior art, therefore it is not elaborated in this manual.
The block of lithium-ion-power cell of the present invention also includes abacus and inner seal ring, and the orifice plate is round sheet,
Which is provided with three air-vents, orifice plate is assembled on the battery core of battery, and lug through orifice plate air-vent be then passed through in
Sealing ring is soldered on the diaphragm of burst disk.The inner seal ring is installed between orifice plate and burst disk, plays sealing orifice plate
With the effect of burst disk.Foregoing inner seal ring is made of Teflon material, can not deformed upon under 350 DEG C of high temperature, because
And preferable sealing effectiveness can be played.Because the Teflon material (English full name is Polytetrafluoroetylene) is
Prior art, therefore it is not elaborated in this manual.
The edge of the cover plate is provided with cover plate burr, and the burst disk is surrounded by burst disk crimping, the burst disk
Crimping wraps up the edge of cover plate, will be welded together using ultrasonic welding process at burst disk crimping with cover plate, the cover plate
Just reach preferably sealing and conductive effect with burst disk.Specifically, the edge of the cover plate is provided with cover plate burr, at this
In embodiment, the cover plate burr height is about 0.1 millimeter, described when the burst disk crimping is coated on the edge of cover plate
In cover plate burr insertion burst disk crimping, the burst disk crimping is connected more close with cover plate, not only effectively enhances anti-
The quick-fried electric conductivity between cover plate, it can more prevent burst disk from being come off from cover plate, significantly enhance burst disk and cover plate
Between sealing effectiveness.Meanwhile using ultrasonic welding process welding crimping can be made to reach relatively good welding effect with cover plate.
Because ultrasonic welding process is prior art, therefore it is not elaborated in this manual.
The maximum feature of block employed in a kind of open formation technique of lithium-ion-power cell of the present invention is：Institute
Block 80 is stated provided with one through cover plate and the through hole of burst disk, plastic cement seal overcoat 40, institute are laid in through hole
State plastic cement seal overcoat 40 and be provided with host cavity, rubbery sealed body 50 is installed in host cavity.
The invention provides a kind of open formation technique of lithium-ion-power cell, it comprises the following steps：1）By battery core
It is packaged in battery container；2）Fluid injection sealing is carried out to battery；3）The pole piece drawn from battery core is soldered in block, then will
Block is installed on housing；4）By the battery transfer of foregoing assembling to formation workshop；5）Conduction pipe is inserted in block；6）By electricity
Pond is melted into, and now, battery is discharged in gas caused by chemical conversion from conduction pipe；7）Extract conduction pipe out, then use seal
Seal passage of the conduction pipe formed in insertion block；8）Welded again with metal steel ball 60 and cap sealed on rubbery sealed body
It is connected together.
Conduction pipe includes syringe needle and connected with syringe needle used by the open formation technique of lithium-ion-power cell of the present invention
The cup being connected together, its shape and the syringe with syringe needle are more similar.
Compared with prior art, the present invention is by installing a flexible etch-proof rubber additional on battery cap
It seal, can be sealed before chemical conversion, in chemical conversion, a conduction pipe, gas caused by chemical conversion are inserted on rubbery sealed body
It will discharge from conduction pipe, after chemical conversion terminates, be sealed up the top of rubbery sealed body with steel ball.Its main benefit exists
In：It will be discharged in gas caused by Battery formation from needle tubing, the possibility of potential safety hazard is caused so as to reduce it to battery.
The open formation technique of lithium-ion-power cell of the present invention, it is not restricted to be retouched in specification and embodiment
State, therefore additional advantage and modification are easily achieved for the personnel of familiar field, therefore without departing substantially from claim
And in the case of the spirit and scope of universal that are limited of equivalency range, the present invention is not limited to specific details, representative
The equipment of property and shown here as the examples shown with description.
Claims (4)
1. the open formation technique of a kind of lithium-ion-power cell, it is characterised in that comprise the following steps：1) battery core is packaged in
In battery container；2) fluid injection sealing is carried out to battery；3) pole piece drawn from battery core is soldered in block, then block is pacified
Loaded on housing；4) by the battery transfer of foregoing assembling to formation workshop；5) conduction pipe is inserted in block；6) battery is carried out
Chemical conversion, now, battery is discharged in gas caused by chemical conversion from conduction pipe；7) extract conduction pipe out, seal conduction pipe and inserting
The passage formed during block；The block includes cover plate, burst disk and through the cover plate and the through hole of the burst disk,
The conduction pipe includes syringe needle and the cup connected with the syringe needle, and plastic cement seal overcoat, institute are provided with the through hole
State and be arranged with host cavity outside plastic cement seal, the rubbery sealed body for sealing the host cavity is provided with the host cavity,
During chemical conversion, the syringe needle runs through the rubbery sealed body, by gas caused by chemical conversion from the syringe needle and the cup
Discharge；After chemical conversion terminates, the syringe needle is extracted out from the rubbery sealed body, and metal is set on the rubbery sealed body
Steel ball, and the metal steel ball is welded together with the cap sealed, to seal the syringe needle from the rubbery sealed body
The hole formed during middle extraction on the rubbery sealed body；The tab welding of the battery core on the diaphragm of the burst disk,
During so that gas breaking through the diaphragm, the lug and the protection UF membrane, so as to cut off the loop of battery.
2. the open formation technique of lithium-ion-power cell as claimed in claim 1, it is characterised in that：The block also includes
The sealed outer ring being coated on the cover plate and the burst disk edge, the sealed outer ring are step hollow cylinder, its
In be relatively large in diameter for blind end, diameter is less to keep end, and blind end is close to the outer wall kept at end slightly to contract shape
Into contraction flow region, the inside of sealed outer ring offers step through hole, the external diameter phase of through-hole diameter and the cover plate at blind end
It is adapted to, the side wall around the through hole is provided with the inside bulge loop of a circle.
3. the open formation technique of lithium-ion-power cell as claimed in claim 1, it is characterised in that：The block also includes
Plate hole and inner seal ring, the plate hole are arranged on the battery core of battery and are arranged on institute including air-vent, the inner seal ring
State between orifice plate and the burst disk, the inner seal ring is used to seal the orifice plate and the burst disk, the pole of the battery core
Ear passes through the air-vent of the orifice plate and is soldered to through the inner seal ring on the diaphragm of the burst disk.
4. the open formation technique of lithium-ion-power cell as claimed in claim 1, it is characterised in that：The cover plate is step
Disk, the cover plate are provided with an annular base portion, and the annular inboard edge of the base portion raises up to form rake and top
Portion, two cover board holes are symmetrically provided with by the rake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310061832.XA CN104009256B (en) | 2013-02-27 | 2013-02-27 | The open formation technique of lithium-ion-power cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310061832.XA CN104009256B (en) | 2013-02-27 | 2013-02-27 | The open formation technique of lithium-ion-power cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104009256A CN104009256A (en) | 2014-08-27 |
| CN104009256B true CN104009256B (en) | 2017-12-15 |
Family
ID=51369823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310061832.XA Expired - Fee Related CN104009256B (en) | 2013-02-27 | 2013-02-27 | The open formation technique of lithium-ion-power cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104009256B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10734668B2 (en) | 2016-09-12 | 2020-08-04 | Johnson & Johnson Vision Care, Inc. | Tubular form biomedical device batteries |
| US20180076465A1 (en) * | 2016-09-12 | 2018-03-15 | Johnson & Johnson Vision Care, Inc. | Tubular form biomedical device batteries with electroless sealing |
| CN110707367A (en) * | 2019-09-30 | 2020-01-17 | 深圳爱商精密电子有限公司 | Opening formation method for soft package lithium ion battery production |
| KR20210100492A (en) * | 2020-02-06 | 2021-08-17 | 주식회사 엘지에너지솔루션 | Manufacturing method of secondary battery and manufacturing method of battery pack comprising the same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2569352Y (en) * | 2001-07-04 | 2003-08-27 | 深圳市比亚迪锂电池有限公司 | Cylindrical type lithium ion cell |
| CN201904383U (en) * | 2010-12-27 | 2011-07-20 | 深圳市沃特玛电池有限公司 | Battery cap |
| CN102195079A (en) * | 2010-03-12 | 2011-09-21 | 江苏海四达电源股份有限公司 | High-capacity high-power ferrous phosphate lithium power battery and manufacturing method thereof |
| CN102593401A (en) * | 2012-02-27 | 2012-07-18 | 江苏锋驰绿色电源有限公司 | Flexible package lithium ion battery with air guide device and method for preparing flexible package lithium ion battery |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201340885Y (en) * | 2008-12-25 | 2009-11-04 | 赵京伟 | Soft package lithium battery |
-
2013
- 2013-02-27 CN CN201310061832.XA patent/CN104009256B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2569352Y (en) * | 2001-07-04 | 2003-08-27 | 深圳市比亚迪锂电池有限公司 | Cylindrical type lithium ion cell |
| CN102195079A (en) * | 2010-03-12 | 2011-09-21 | 江苏海四达电源股份有限公司 | High-capacity high-power ferrous phosphate lithium power battery and manufacturing method thereof |
| CN201904383U (en) * | 2010-12-27 | 2011-07-20 | 深圳市沃特玛电池有限公司 | Battery cap |
| CN102593401A (en) * | 2012-02-27 | 2012-07-18 | 江苏锋驰绿色电源有限公司 | Flexible package lithium ion battery with air guide device and method for preparing flexible package lithium ion battery |
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| CN104009256A (en) | 2014-08-27 |
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