CN104112862B - A kind of secondary cell current-collecting device and preparation method thereof - Google Patents
A kind of secondary cell current-collecting device and preparation method thereof Download PDFInfo
- Publication number
- CN104112862B CN104112862B CN201410280143.2A CN201410280143A CN104112862B CN 104112862 B CN104112862 B CN 104112862B CN 201410280143 A CN201410280143 A CN 201410280143A CN 104112862 B CN104112862 B CN 104112862B
- Authority
- CN
- China
- Prior art keywords
- sheet
- confluxes
- sheet metal
- collecting device
- secondary cell
- Prior art date
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Links
- 238000002360 preparation method Methods 0.000 title description 2
- 239000002184 metal Substances 0.000 claims abstract description 29
- 229910052751 metal Inorganic materials 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 230000008569 process Effects 0.000 claims abstract description 7
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/70—Carriers or collectors characterised by shape or form
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
-
- 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
Abstract
The invention discloses a kind of secondary cell current-collecting device, including confluxing sheet and be arranged on the sheet metal on the group end face of electrode pole, the lower end of described sheet metal has circular hole, flanging bore is offered on the described sheet that confluxes, this flanging bore has the flange protruding out a pipe box shape from the outer wall of the sheet that confluxes to sheet metal direction, described in the conflux circle hole sleeve of sheet be located on described flange and linked into an integrated entity with sheet metal by riveting method.The present invention is located on described flange by the circle hole sleeve of the sheet that confluxes and linked into an integrated entity with sheet metal by riveting method, it is to avoid the sheet that confluxes directly with electrode pole bond pads, not only manufacture method is simple, and promote sheet metal process with the sheet that confluxes together with efficiency；Riveting method also strengthens the intensity that both connect, and promotes reliability.The present invention also provides for the manufacture method of a kind of secondary cell current-collecting device.
Description
Technical field
The present invention relates to battery manufacturing field, specifically refer to a kind of secondary cell current-collecting device and making side thereof
Method.
Background technology
In recent years, along with the development people of hybrid vehicle etc., the high power performance of battery is required increasingly
High.Therefore, the high power performance promoting secondary cell becomes the Main way of research.
At present, affect in the factors of secondary cell high power performance, battery structure, particularly internal collection
Flow structure, is one of the emphasis of research all the time.As a example by cylindrical battery, the inner current collector structure master of battery
Experienced by two stages.The first, on electrode plates, weld or directly lead out one or several lug, then
By tab welding or be riveted on battery cover, this mode is called for short lug mode；The second, first in electrode pole group
Welding the sheet that confluxes on face, then the sheet that will conflux is welded on battery cover, this mode is called for short face welding structure.
The current-collecting device that the sheet that confluxes connects, portion when on the one hand producing in enormous quantities are welded in above-mentioned employing soldering polar ear or face
Divide the good place of welding not yet in effect can produce high internal resistance, affect battery with two side terminals；On the other hand, owing to increasing
The resistance of lug own, and it is with pole piece and positive and negative extreme welding kesistance, thus considerably increases battery
Internal resistance, meanwhile, reduce the heat-transfer rate of inside battery heat, during the biggest electric current charge and discharge.
And, the processing mode of the sheet that confluxes is welded in employing face, and the material of the sheet that typically confluxes is copper, group face, electrode pole
For the sheet metal of metal material, due to the reason such as welding machine, soldering tip, the sheet that confluxes, group face, electrode pole quality, deposit
At rosin joint, tension intensity is inadequate, connect the hidden danger such as resistance is the biggest, and working (machining) efficiency is low；And cause inside battery
It is slower that heat derives speed.
Summary of the invention
It is an object of the invention to overcome weak point of the prior art, it is provided that a kind of bonding strength is reliable and stable,
The secondary cell current-collecting device that working (machining) efficiency is high.
It is an object of the invention to be achieved through the following technical solutions:
A kind of secondary cell current-collecting device, including confluxing sheet and be arranged on the metal on the group end face of electrode pole
Sheet, it is characterised in that: the lower end of described sheet metal has circular hole, described in conflux and offer flanging bore on sheet,
This flanging bore has the flange protruding out a pipe box shape from the outer wall of the sheet that confluxes to sheet metal direction, described gold
The circle hole sleeve belonging to sheet is located on the flange of the sheet that confluxes and is linked into an integrated entity with the sheet that confluxes by riveting method.
As a modification of the present invention, the round edge of described circular hole is zigzag.
Concrete, the height of described flange is 1～3mm.
Concrete, described in the conflux thickness of sheet be 0.3-1.2mm.
Concrete, a diameter of 2-5mm of described circular hole.
Based on same design, the present invention also provides for the manufacture method of a kind of secondary cell current-collecting device, including
Following steps:
Step 1, the middle part of sheet metal on the group end face of electrode pole process circular hole；
Step 2, pressing equipment is utilized to process the flanging bore corresponding with circular hole at the sheet that confluxes；
Step 3, the circle hole sleeve of sheet metal is located on the flange of the sheet that confluxes, by riveting method will conflux sheet with
The junction of sheet metal is riveted into one.
The present invention has the following advantages and beneficial effect compared to existing technology:
1, the present invention is located on the flange of the sheet that confluxes by the circle hole sleeve of sheet metal and passes through riveting method and conflux
Sheet links into an integrated entity, it is to avoid the sheet that confluxes directly with electrode pole bond pads, not only manufacture method is simply, and
Promote sheet metal efficiency together with sheet processing of confluxing；Riveting method also strengthens the intensity that both connect, and carries
Rise reliability.
2, use riveting method, and control the height of flange, the thickness of the sheet that confluxes and the diameter of circular hole, both kept away
Exempt from existing generation heat when welding in group face, pole, it is ensured that high capacity cell high power discharge ability, again
Guarantee the intact of barrier film near the group end face of pole, improve the yield rate that battery makes.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of the present invention.
Fig. 2 is the main apparent direction structural representation of the sheet metal of the present invention.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but the embodiment party of the present invention
Formula is not limited to this.
Embodiment
As shown in Figures 1 and 2, the present embodiment provides a kind of secondary cell current-collecting device, including the sheet 1 that confluxes
And it being arranged on the sheet metal 2 on the group end face of electrode pole, the lower end of described sheet metal 2 has circular hole 201, institute
Stating and offer flanging bore on the sheet that confluxes, the outer wall that this flanging bore has from the sheet that confluxes protrudes out to sheet metal direction
The flange 101 of one pipe box shape, the circle hole sleeve of described sheet metal 2 is located on the flange 101 of the sheet 1 that confluxes and leads to
Cross riveting method and the sheet 1 that confluxes links into an integrated entity.
The round edge 202 of described circular hole 201 is zigzag.The round edge of circular hole is processed into zigzag, can be effective
Increase the adhesion of round edge and flange junction, it is ensured that the quality of riveting and the intensity being connected.
For improving the sheet 1 riveting quality with sheet metal 2 that confluxes of current-collecting device further, prevent defective product
Product, the height of described flange is 1～3mm, described in the conflux thickness of sheet be 0.3-1.2mm, described circular hole
A diameter of 2-5mm.
After using above technical scheme, both can guarantee that the reliability that flange is connected with circular hole, turn avoid existing
Generation heat when welding in group face, pole, it is ensured that high capacity cell high power discharge ability.
Based on same design, the present invention also provides for the manufacture method of a kind of secondary cell current-collecting device, including
Following steps:
Step 1, the middle part of sheet metal on the group end face of electrode pole process circular hole；
Step 2, pressing equipment is utilized to process the flanging bore corresponding with circular hole at the sheet that confluxes；
Step 3, the circle hole sleeve of sheet metal is located on the flange of the sheet that confluxes, by riveting method will conflux sheet with
The junction of sheet metal is riveted into one.
Above-described embodiment is the present invention preferably embodiment, but embodiments of the present invention are not by above-mentioned reality
Execute the restriction of example, the change made under other any spirit without departing from the present invention and principle, modification,
Substitute, combine, simplify, all should be the substitute mode of equivalence, within being included in protection scope of the present invention.
Claims (6)
1. a secondary cell current-collecting device, including confluxing sheet and be arranged on the gold on the group end face of electrode pole
Belong to sheet, it is characterised in that: the lower end of described sheet metal has circular hole, described in conflux and offer flanging bore on sheet,
This flanging bore has the flange protruding out a pipe box shape from the outer wall of the sheet that confluxes to sheet metal direction, described gold
The circle hole sleeve belonging to sheet is located on the flange of the sheet that confluxes and is linked into an integrated entity with the sheet that confluxes by riveting method.
Secondary cell current-collecting device the most according to claim 1, it is characterised in that: the circle of described circular hole
While be zigzag.
Secondary cell current-collecting device the most according to claim 1 or claim 2, it is characterised in that: described flange
Height be 1～3mm.
Secondary cell current-collecting device the most according to claim 3, it is characterised in that conflux described in: sheet
Thickness is 0.3-1.2mm.
Secondary cell current-collecting device the most according to claim 4, it is characterised in that: described circular hole straight
Footpath is 2～5mm.
6. the manufacture method of a secondary cell current-collecting device, it is characterised in that: comprise the steps:
Step 1, the middle part of sheet metal on the group end face of electrode pole process circular hole；
Step 2, pressing equipment is utilized to process the flanging bore corresponding with circular hole at the sheet that confluxes；
Step 3, the circle hole sleeve of sheet metal is located on the flange of the sheet that confluxes, by riveting method will conflux sheet with
The junction of sheet metal is riveted into one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410280143.2A CN104112862B (en) | 2014-06-20 | 2014-06-20 | A kind of secondary cell current-collecting device and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410280143.2A CN104112862B (en) | 2014-06-20 | 2014-06-20 | A kind of secondary cell current-collecting device and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104112862A CN104112862A (en) | 2014-10-22 |
| CN104112862B true CN104112862B (en) | 2016-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410280143.2A Active CN104112862B (en) | 2014-06-20 | 2014-06-20 | A kind of secondary cell current-collecting device and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104112862B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106410102B (en) * | 2016-11-09 | 2023-06-27 | 浙江兴海能源科技有限公司 | Circular positive electrode confluence disc with four-section semicircular lugs and connecting method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201623203U (en) * | 2009-09-08 | 2010-11-03 | 沈亚群 | Circular battery of super-power flexible current-collecting disc |
| CN103069613A (en) * | 2010-12-28 | 2013-04-24 | 株式会社新王材料 | Connection plate for battery terminal and method of manufacturing connection plate for battery terminal |
| CN103283057A (en) * | 2011-08-31 | 2013-09-04 | 丰田自动车株式会社 | Bus bar module, vehicle power supply device, and vehicle |
| CN203553260U (en) * | 2013-11-26 | 2014-04-16 | 中国电子科技集团公司第十八研究所 | Current-collecting device for high-rate charge-discharge high-capacity batteries |
| CN204029921U (en) * | 2014-06-20 | 2014-12-17 | 广东亿纬赛恩斯新能源系统有限公司 | A kind of secondary cell current-collecting device |
-
2014
- 2014-06-20 CN CN201410280143.2A patent/CN104112862B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201623203U (en) * | 2009-09-08 | 2010-11-03 | 沈亚群 | Circular battery of super-power flexible current-collecting disc |
| CN103069613A (en) * | 2010-12-28 | 2013-04-24 | 株式会社新王材料 | Connection plate for battery terminal and method of manufacturing connection plate for battery terminal |
| CN103283057A (en) * | 2011-08-31 | 2013-09-04 | 丰田自动车株式会社 | Bus bar module, vehicle power supply device, and vehicle |
| CN203553260U (en) * | 2013-11-26 | 2014-04-16 | 中国电子科技集团公司第十八研究所 | Current-collecting device for high-rate charge-discharge high-capacity batteries |
| CN204029921U (en) * | 2014-06-20 | 2014-12-17 | 广东亿纬赛恩斯新能源系统有限公司 | A kind of secondary cell current-collecting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104112862A (en) | 2014-10-22 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20200427 Address after: 448000 No. 68 Jingnan Avenue, Gongdao District, Jingmen High-tech Zone, Jingmen City, Hubei Province Patentee after: Hubei EVE Power Co.,Ltd. Address before: Seven road 516006 in Guangdong province Huizhou City Zhongkai high tech Zone Huifeng No. 36 Patentee before: GUANGZHOU EVE CENS NEW ENERGY SYSTEM Co.,Ltd. |