CN104009256A - Open formation process of lithium ion power battery - Google Patents
Open formation process of lithium ion power battery Download PDFInfo
- Publication number
- CN104009256A CN104009256A CN201310061832.XA CN201310061832A CN104009256A CN 104009256 A CN104009256 A CN 104009256A CN 201310061832 A CN201310061832 A CN 201310061832A CN 104009256 A CN104009256 A CN 104009256A
- Authority
- CN
- China
- Prior art keywords
- battery
- block
- lithium
- ion
- conduction pipe
- 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.)
- Granted
Links
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 26
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title abstract description 8
- 229910001416 lithium ion Inorganic materials 0.000 title abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 239000010959 steel Substances 0.000 claims abstract description 6
- 239000004568 cement Substances 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 13
- 238000003466 welding Methods 0.000 abstract description 8
- 239000004589 rubber sealant Substances 0.000 abstract 3
- 239000000565 sealant Substances 0.000 abstract 1
- 238000002788 crimping Methods 0.000 description 7
- 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
- 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
- 238000005516 engineering process Methods 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
- 230000008602 contraction Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 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)
- Sealing Battery Cases Or Jackets (AREA)
- Primary Cells (AREA)
Abstract
The invention discloses an open formation process of a lithium ion power battery. The open formation process comprises the following steps of 1) encapsulating a cell in a battery shell; 2) infusing and sealing the battery; 3) welding an electrode led from the cell to a cap and installing the cap on the shell; 4) transferring the assembled battery into a formation workshop; 5) inserting a conduction tube in the cap; 6) forming the battery, gases formed during the formation of the cell being discharged from the conduction tube; and 7) drawing out the conduction tube and sealing a channel formed in the process of inserting the conduction tube into the cap by using a sealant. Compared with a conventional forming process, the open formation process can seal the battery before the formation by adding an elastic anti-corrosive rubber sealant, can discharge the gases produced in the formation from the conduction tube by inserting the conduction tube in the rubber sealant during the formation, and can seal the upper part of the rubber sealant by using steel balls after the formation.
Description
[technical field]
The present invention relates to technical field of lithium ion, relate in particular to a kind of open formation technique of lithium-ion-power cell.
[background technology]
Lithium-ion-power cell has high-energy-density and various excellent properties, and therefore, its application is more and more universal.Column lithium ion battery has standardized size because of it, and ripe manufacturing process and manufacturing equipment, can produce in batches, therefore, in lithium ion battery market, occupy important share.
But, also there is following significant shortcoming in existing lithium ion battery, and it is mainly manifested in: because lithium ion is to water sensitive, so in battery manufacture, if exist micro-moisture in pole piece or electrolyte, so, when battery chemical synthesis technology, also can produce a large amount of gas.These gases cannot excrete in the battery case of sealing, when battery is when working, battery also can produce heat, continuous gathering along with heat, air pressure inside constantly increases, excessive air pressure may cause block safety device to open, thereby causes battery to be scrapped, and even more serious may cause battery explosion.
In view of this, necessary a kind of open formation technique of lithium-ion-power cell that provides is to address the above problem.
[summary of the invention]
The object of the present invention is to provide a kind of open formation technique of lithium-ion-power cell, so that the gas that battery is produced when changing into is discharged in time, guarantee the safe handling of battery.
To achieve these goals, the invention provides a kind of open formation technique of lithium-ion-power cell, it comprises the steps: 1) battery core is packaged in battery container; 2) battery is carried out to fluid injection sealing; 3) pole piece of drawing from battery core is soldered to block above, then block is installed on housing; 4) battery of aforementioned assembling is transferred to formation workshop; 5) in block, insert conduction pipe; 6) battery is changed into, now, the gas that battery produces when changing into is discharged from conduction pipe; 7) extract conduction pipe out, then seal conduction pipe formed passage when inserting block with seal.
A kind of improvement as the open formation technique of lithium-ion-power cell of the present invention, block in described step 3) comprises cover plate, burst disk and sealed outer ring, block is provided with a through hole that runs through cover plate and burst disk, in through hole, lay plastic cement seal overcoat, described plastic cement seal is arranged with host cavity outward, installs rubbery sealed body in host cavity.
As a kind of improvement of the open formation technique of lithium-ion-power cell of the present invention, the conduction pipe in described step 5) comprises syringe needle and the cup linking together with syringe needle.
A kind of improvement as the open formation technique of lithium-ion-power cell of the present invention, also comprises step 8), on rubbery sealed body, welds together with metal steel ball and cap sealed again.
Compared with prior art, the present invention has flexible etch-proof rubbery sealed body by install one additional on battery cap, before changing into, can seal, when changing into, on rubbery sealed body, insert a conduction pipe, the gas producing while changing into will be discharged from conduction pipe, changes into after end, with steel ball, the top of rubbery sealed body is sealed up.Its main benefit is: the gas producing when battery changes into is discharged from needle tubing, thereby reduce it, battery is caused to the possibility of potential safety hazard.
[accompanying drawing explanation]
Fig. 1 is lithium-ion-power cell front view involved in the present invention;
Fig. 2 is the cutaway view of the part of lithium-ion-power cell shown in Fig. 1.
[embodiment]
In order to make, object of the present invention, technical scheme and useful technique effect are more clear to be understood, below in conjunction with the drawings and specific embodiments, the present invention is further elaborated.Should be understood that, the embodiment of describing in this specification is only used to explain the present invention, is not in order to limit the present invention.
Refer to Fig. 1-2, a kind of lithium-ion-power cell, it comprises housing 10 and for being fastened on lithium-ion battery shell, mainly plays the block that sealed cell housing and protection battery are used safety effect.
Block comprises cover plate 80, burst disk 30 and sealed outer ring 20, and between described cover plate 80 and burst disk 30, sealing paste is combined successively, and described sealed outer ring 20 is coated on the edge of aforementioned cover plate 80 and burst disk 30.
Cover plate is step disk, and it is provided with an annular base portion, and the annular inboard edge of base portion raises up and forms rake and top, and rake side is provided with two cover board holes symmetrically.
The shape of burst disk and cover plate are approximate, and described burst disk adopts thinner metal aluminium flake to make, and its center is provided with protruding diaphragm, and the diaphragm of described projection also adopts metallic aluminium to make.The surrounding of the diaphragm of described projection is provided with two-way indentation; when battery is assembled; by the tab welding of battery core to diaphragm; because metallic aluminium material is soft, therefore when battery breaks down, when its inner air pressure that produces gas reaches certain numerical value; gas can break through diaphragm and discharge; be that diaphragm just can disconnect along two-way indentation place, the lug being connected to like this on diaphragm just can be torn with diaphragm, thereby cuts off the loop of battery.
Sealed outer ring is step hollow cylindrical, and what wherein diameter was larger is blind end, and directly less is maintenance end.Blind end slightly inwardly shrinks and forms contraction flow region near the outer wall that keeps end place.The inside of sealed outer ring offers step through hole, and the through-hole diameter at blind end place and the external diameter of cover plate are suitable.Through hole sidewall is around provided with the inside bulge loop of a circle.Described sealed outer ring adopts poly-second propylene material to make, thereby has good heat-resisting quantity and insulating properties.Because poly-second propylene material is prior art, therefore in this manual it is not elaborated.
The block of lithium-ion-power cell of the present invention also includes orifice plate and inner seal ring; described orifice plate is round sheet; which is provided with three air-vents, orifice plate is assembled on the battery core of battery, and lug is soldered on the diaphragm of burst disk through inner seal ring through the air-vent of orifice plate again.Described inner seal ring is installed between orifice plate and burst disk, plays the effect of sealing orifice plate and burst disk.Aforesaid inner seal ring adopts Teflon material to make, and can under 350 ℃ of high temperature, deformation not occur, thereby can play good sealing effectiveness.Because described Teflon material (English full name is Polytetrafluoroetylene) is prior art, therefore in this manual it is not elaborated.
The edge of described cover plate is provided with cover plate burr, the surrounding of described burst disk is provided with burst disk crimping, the edge of described burst disk crimping parcel cover plate, adopt ultrasonic welding process that burst disk crimping place and bridge welding are connected together, described cover plate and burst disk just reach good sealing and conductive effect.Specifically, the edge of described cover plate is provided with cover plate burr, in the present embodiment, described cover plate burr height is about 0.1 millimeter, and when described burst disk crimping is coated on the edge of cover plate, described cover plate burr embeds in burst disk crimping, described burst disk crimping is connected more tight with cover plate, not only effectively strengthen the electric conductivity between burst disk and cover plate, more can prevent that burst disk from coming off from cover plate, greatly strengthened the sealing effectiveness between burst disk and cover plate.Meanwhile, use ultrasonic welding process welding can make crimping and cover plate reach reasonable welding effect.Because ultrasonic welding process is prior art, therefore in this manual it is not elaborated.
The maximum feature of the block adopting in the open formation technique of a kind of lithium-ion-power cell of the present invention is: described block 80 is provided with a through hole that runs through cover plate and burst disk, in through hole, lay plastic cement seal overcoat 40, described plastic cement seal overcoat 40 is provided with host cavity, installs rubbery sealed body 50 in host cavity.
The open formation technique that the invention provides a kind of lithium-ion-power cell, it comprises the steps: 1) battery core is packaged in battery container; 2) battery is carried out to fluid injection sealing; 3) pole piece of drawing from battery core is soldered to block above, then block is installed on housing; 4) battery of aforementioned assembling is transferred to formation workshop; 5) in block, insert conduction pipe; 6) battery is changed into, now, the gas that battery produces when changing into is discharged from conduction pipe; 7) extract conduction pipe out, then seal conduction pipe formed passage in inserting block with seal; 8) on rubbery sealed body, by metal steel ball 60 and cap sealed, weld together again.
The conduction pipe that the open formation technique of lithium-ion-power cell of the present invention adopts comprises syringe needle and the cup linking together with syringe needle, and its shape is comparatively similar to the syringe with syringe needle.
Compared with prior art, the present invention has flexible etch-proof rubbery sealed body by install one additional on battery cap, before changing into, can seal, when changing into, on rubbery sealed body, insert a conduction pipe, the gas producing while changing into will be discharged from conduction pipe, changes into after end, with steel ball, the top of rubbery sealed body is sealed up.Its main benefit is: the gas producing when battery changes into is discharged from needle tubing, thereby reduce it, battery is caused to the possibility of potential safety hazard.
The open formation technique of lithium-ion-power cell of the present invention, be not restricted to described in specification and execution mode, therefore for the personnel of familiar field, can easily realize additional advantage and modification, therefore in the situation that do not deviate from the spirit and scope of the universal that claim and equivalency range limit, the present invention is not limited to specific details, representational equipment and illustrates here and the examples shown of describing.
Claims (4)
1. an open formation technique for lithium-ion-power cell, is characterized in that, comprises the steps: 1) battery core is packaged in battery container; 2) battery is carried out to fluid injection sealing; 3) pole piece of drawing from battery core is soldered to block above, then block is installed on housing; 4) battery of aforementioned assembling is transferred to formation workshop; 5) in block, insert conduction pipe; 6) battery is changed into, now, the gas that battery produces when changing into is discharged from conduction pipe; 7) extract conduction pipe out, then seal conduction pipe formed passage when inserting block with seal.
2. the open formation technique of lithium-ion-power cell as claimed in claim 1, it is characterized in that: the block in described step 3) comprises cover plate, burst disk and sealed outer ring, block is provided with a through hole that runs through cover plate and burst disk, in through hole, lay plastic cement seal overcoat, described plastic cement seal is arranged with host cavity outward, installs rubbery sealed body in host cavity.
3. the open formation technique of lithium-ion-power cell as claimed in claim 2, is characterized in that: the conduction pipe in described step 5) comprises syringe needle and the cup linking together with syringe needle.
4. the open formation technique of lithium-ion-power cell as claimed in claim 2, is characterized in that: also comprise step 8), on rubbery sealed body, weld together with metal steel ball and cap sealed again.
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 true CN104009256A (en) | 2014-08-27 |
| CN104009256B 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) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2672572C1 (en) * | 2016-09-12 | 2018-11-16 | Джонсон Энд Джонсон Вижн Кэа, Инк. | Batteries of tubular biomedical devices with chemically deposited seal |
| 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 |
| US10734668B2 (en) | 2016-09-12 | 2020-08-04 | Johnson & Johnson Vision Care, Inc. | Tubular form biomedical device batteries |
| CN113875056A (en) * | 2020-02-06 | 2021-12-31 | 株式会社Lg新能源 | Method for manufacturing secondary battery and method for manufacturing battery pack including the same |
Citations (5)
| 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 |
| CN201340885Y (en) * | 2008-12-25 | 2009-11-04 | 赵京伟 | Soft package lithium battery |
| 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 |
-
2013
- 2013-02-27 CN CN201310061832.XA patent/CN104009256B/en not_active Expired - Fee Related
Patent Citations (5)
| 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 |
| CN201340885Y (en) * | 2008-12-25 | 2009-11-04 | 赵京伟 | Soft package lithium battery |
| 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 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2672572C1 (en) * | 2016-09-12 | 2018-11-16 | Джонсон Энд Джонсон Вижн Кэа, Инк. | Batteries of tubular biomedical devices with chemically deposited seal |
| US10734668B2 (en) | 2016-09-12 | 2020-08-04 | Johnson & Johnson Vision Care, Inc. | Tubular form biomedical device batteries |
| 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 |
| CN113875056A (en) * | 2020-02-06 | 2021-12-31 | 株式会社Lg新能源 | Method for manufacturing secondary battery and method for manufacturing battery pack including the same |
| CN113875056B (en) * | 2020-02-06 | 2024-05-17 | 株式会社Lg新能源 | Method for manufacturing secondary battery and method for manufacturing battery pack |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104009256B (en) | 2017-12-15 |
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