CN101651186A - Method for assembling lugs and cover plate of battery - Google Patents
Method for assembling lugs and cover plate of battery Download PDFInfo
- Publication number
- CN101651186A CN101651186A CN200810142440A CN200810142440A CN101651186A CN 101651186 A CN101651186 A CN 101651186A CN 200810142440 A CN200810142440 A CN 200810142440A CN 200810142440 A CN200810142440 A CN 200810142440A CN 101651186 A CN101651186 A CN 101651186A
- Authority
- CN
- China
- Prior art keywords
- lug
- battery
- cover plate
- ejector
- lugs
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 238000005452 bending Methods 0.000 claims abstract description 3
- 230000004888 barrier function Effects 0.000 claims description 9
- 238000005096 rolling process Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 abstract description 10
- 238000004146 energy storage Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 description 10
- 125000006850 spacer group Chemical group 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 230000005405 multipole Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 208000032953 Device battery issue Diseases 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009459 flexible packaging Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920006280 packaging film Polymers 0.000 description 1
- 239000012785 packaging film Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 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
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a method for assembling lugs and a cover plate of a battery, which comprises the following steps: a) placing a lug lead-out device at the end of a battery coil core; b) electrically contacting a plurality of lugs extending out of the end of the coil core and a conductive layer of the lug lead-out device; c) compressing the lugs on the lug lead-out device through a second gasket; and d) placing the cover plate of the battery on the upper surface of the second gasket, and sealing the periphery of the cover plate of the battery and a shell of the battery. Step b) also comprises the following subsequent step: b1) bending the lugs and then welding the lugs on the conductive layer of the lug lead-out device. The lugs are welded to the lug lead-out device and mechanicallycompressed through the second gasket so as to ensure reliable connection of the lugs and posts of a battery cell, reduce the inner resistance of the battery and ensure firm fixation of the coil core.The method is simple in assembly process, is suitable for line production, is suitable for assembling the batteries of hybrid electric automobiles with multiple lugs and large volume and pure electricautomobiles and can also be used for assembling large energy-storage batteries.
Description
Technical field
The present invention relates to battery and make the field, specifically relate to the assembly method of a kind of battery pole ear and cover plate.
Background technology
Lithium rechargeable battery is by negative plate, positive plate, electrolyte and prevent that between positive/negative plate the barrier film of short circuit from forming.Positive plate and negative plate are done makes thin plate or paper tinsel shape, then battery lead plate and intervenient barrier film is stacked in order or helical form is twined and form electric core, again electric core is packed in iron, aluminum metal case or the lamination flexible packaging film battery case of stainless steel, nickel plating, inject electrolyte, battery is made in sealing.Wherein, electric core and extraneous conducting are that lug by being connected with pole plate was realized with being connected of pole or cover plate.
The present battery pole ear and the assembly technology of cover plate, generally lug is welded on the pole of cover plate, when heavy-current discharge, such as using when hybrid-electric car (HEV) or pure electric automobile (EV) are gone up, if locating to be connected bad or connect, lug and pole etc. lost efficacy, to cause heating serious, cause battery temperature too high, cause battery failure when serious, influence the fail safe and the cycle life of battery, especially when being provided with a plurality of lugs and being connected with pole, the welding position can not accurately be controlled, and is unfavorable for technology, quality control.
Summary of the invention
The technical problem to be solved in the present invention overcomes above defective exactly, proposes the assembly method of a kind of battery pole ear and cover plate, improves being connected between a plurality of lugs and pole on the electric core, reduces the internal resistance of cell, reduces the battery caloric value.
Technical problem of the present invention is achieved through the following technical solutions.
The characteristics of the assembly method of this battery pole ear and cover plate are, may further comprise the steps: the end that a) the lug ejector is placed on battery roll core, wherein the insulating barrier of lug ejector contacts with volume core end, and the conductive layer of lug ejector is away from volume core end; B) will roll up a plurality of lugs that stretch out the core end and the conductive layer of lug ejector electrically contacts; C) with second pad lug is pressed on the lug ejector; D) battery cover board is placed on the upper surface of second pad, and with battery cover board periphery and battery case sealing.
In the described step b), the conductive layer that a plurality of lugs are passed behind the hole on the lug ejector with the lug ejector electrically contacts.
Further comprising the steps of after the described step b): as b1) will to be welded on the conductive layer of lug ejector after the lug press-bending.
Described step b1) in, adopt the lf weldering to be connected between the conductive layer of lug and lug ejector.
May further comprise the steps after the described step c): c1) hole from second pad is welded on lug on the conductive layer of lug ejector.
Described step c1) in, adopt the lf weldering to be connected between the conductive layer of lug and lug ejector.
Described step c) realizes in the following manner: the cooperation by screw bolt and nut is locked at second pad on the lug ejector, and lug is pressed between second pad and the lug ejector.
In the described step d), the pole on bolt one end and the battery cover board is connected and fixed.
In the described step d), the centre bore of offering on bolt one end and the pole is cooperated, and adopt the lf weldering to realize being connected and fixed of bolt end and pole.
In the described step b), the conductive layer that a plurality of lugs are respectively extended back and lug ejector along the outer rim place of lug ejector electrically contacts.
The beneficial effect that the present invention is compared with the prior art is:
1. a plurality of lugs fixedly are connected electrically on the conductive layer of lug ejector, the lug ejector can provide the link position of a plurality of lugs simultaneously, make the lug tie point reliably firm, and compress by the second pad Mechanical Contact, the lug that has guaranteed electric core is connected with the reliable of pole, has increased effective contact area of lug and pole.
2. lug is passed from the space that the lug ejector is fixed, guaranteed that the lug link position is accurate, the accurate unanimity of position during welding, and convenient welding help enhancing productivity.Especially for electric core, can guarantee that the welding position of each lug is accurate to multipole ear.
3. use the lf welding between lug and lug ejector, further improved conductive effect, guarantee the performance of battery when discharge, reduced the internal resistance of cell, reduce caloric value, improve battery cycle life.
4. lug ejector, second pad closely contact with cover plate, have guaranteed and volume the fixedly securing of core.Assembling simply, is conveniently made economy between the lug of battery and cover plate, is easy to continuous productive process, makes things convenient for suitability for industrialized production.
The present invention is highly suitable for the cylindrical battery of multipole ear, large volume, owing to can fix anti-vibration, the impact capacity of electric core, raising battery effectively, and then improve battery safety, and be applicable to the battery of assembling hybrid battery automobile and pure electric automobile, also can be used for large-scale energy-storage battery.
Description of drawings
Fig. 1 is the structural representation of embodiment 1;
Fig. 2 be among Fig. 1 the structure chart of insulation spacer;
Fig. 3 is the structure chart of first pad among Fig. 1;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is the structure chart of second pad among Fig. 1;
Fig. 6 is the structure of cover plate figure among Fig. 1;
Fig. 7 is the structure chart of the lug ejector among the embodiment 2;
Fig. 8 is the structure chart of the lug ejector among the embodiment 3.
Embodiment
A kind of secondary cell as shown in Figure 1, comprises cover plate 1, connector, lug ejector, second pad 3, volume core 7.The lug ejector comprises the insulation spacer 6 and first pad 5, and wherein insulation spacer 6 constitutes insulating barrier, and first pad 5 constitutes conductive layer.Connector comprises nut 2 and the screw rod 502 that is fixed on first pad.Battery pole plates is wound in the volume core 7 of cylindrical shape, and two ends all have a plurality of lugs 4 to stretch out outside the volume core 7, and wherein the lug of an end is an anode ear, and the other end is negative electrode lug entirely, and the two ends lug is identical with the syndeton of cover plate.
Insulation spacer 6 is circular, is placed on the end face of volume core 7, and the structure of insulation spacer 6 offers hole 601 as shown in Figure 2 on it, and hole 601 is fan-shaped for what be interrupted.Above insulation spacer 6, be stacked with first pad 5, the structure of first pad 5 as shown in Figure 3, Figure 4, also offer hole 501 on it, hole 501 is fan-shaped for what be interrupted, the center of first pad 5 also is provided with screw rod 502, and screw rod 502 is provided with screw thread, and its lower end penetrates the centre bore on the insulation spacer 6, the holding position is stable, and the centre bore of second pad 3 is passed in its upper end.Second pad 3 is fastening by the nut 2 and first pad, and the structure of second pad 3 offers space 301 as shown in Figure 5 on it.Cover plate 1 is placed on second pad 3, and its structure is provided with pole 104 as shown in Figure 6, and pole 104 centers offer centre bore 101.Also have liquid injection hole 102 and explosionproof hole 103 on the cover plate 1.First pad 5, second pad 6, lug 4, cover plate 1, pole 104 are made 104 insulation of its cover plate 1 and pole for conductive metal material.
During assembling, lug 4 passes hole 601 on the insulation spacer 6 and the hole 501 on first pad is stretched above insulation spacer 6, afterwards lug 4 is flattened above first pad 5, adopt laser spot welding or sequential welding that lug 4 is welded on first pad 5 again.Placement second pad 3 on first pad 5 then, the centre bore that is about to second pad 3 passes the screw rod 502 of first pad, and upper and lower like this two metallic gaskets are clipped in the middle lug 4, tighten with nut 2, thereby clamp the lug 4 of centre.Cover cover plate 1 at last, the polished rod of screw rod 502 upper ends of the centre bore 101 on the cover plate 1 and first pad 5 is partly combined closely, and the outside welds together the two with the mode of lf weldering.The upper end form fit of centre bore 101 and screw rod 502 can be circle, the square different shape that waits.At last with the periphery and the battery case welded seal of cover plate 1.
The step that lug 4 is welded on first pad 5 also can be carried out after having placed second pad 3, and the hole 301 that can see through second pad this moment is welded on first pad 5 to lug 4 usefulness laser spot weldings or sequential welding.
Also can select to roll up on the cover plate 1 of core 7 one ends and be not provided with pole 104, anode ear or negative electrode lug are directly electrically connected on the cover plate 1 of conduction.
In another embodiment, anode ear and negative electrode lug all are placed on the same end of volume core 7, and two poles on the cover board are set, and at this moment need the electric connection structure of two poles on positive and negative lug and the cover plate is isolated with insulating element.
A kind of secondary cell comprises cover plate, connector, lug ejector, second pad, volume core, and its difference from Example 2 is: described lug ejector is the structure of insulating barrier and the compound one of conductive layer.As shown in Figure 7, the lug ejector is divided into upper and lower two-layer, and the upper strata is a conductive layer, and lower floor is an insulating barrier, is welded on the top of conductive layer after lug passes hole on the lug ejector from the below of insulating barrier.
A kind of secondary cell, comprise cover plate, connector, lug ejector, second pad, volume core, its difference from Example 2 is, do not establish hole on the lug ejector, as shown in Figure 8, be welded on the top of conductive layer after lug is stretched out by the edge of lug ejector from the below of insulating barrier.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. the assembly method of battery pole ear and cover plate is characterized in that, may further comprise the steps:
A) the lug ejector is placed on the end of battery roll core, wherein the insulating barrier of lug ejector contact with volume core end, and the conductive layer of lug ejector is away from rolling up the core end;
B) will roll up a plurality of lugs that stretch out the core end and the conductive layer of lug ejector electrically contacts;
C) with second pad lug is pressed on the lug ejector;
D) battery cover board is placed on the upper surface of second pad, and with battery cover board periphery and battery case sealing.
2. the assembly method of battery pole ear as claimed in claim 1 and cover plate is characterized in that: in the described step b), the conductive layer that a plurality of lugs are passed behind the hole on the lug ejector with the lug ejector electrically contacts.
3. the assembly method of battery pole ear as claimed in claim 2 and cover plate is characterized in that: further comprising the steps of after the described step b):
B1) will be welded on the conductive layer of lug ejector after the lug press-bending.
4. the assembly method of battery pole ear as claimed in claim 3 and cover plate is characterized in that: described step b1), adopt the lf weldering to be connected between the conductive layer of lug and lug ejector.
5. the assembly method of battery pole ear as claimed in claim 2 and cover plate is characterized in that: may further comprise the steps after the described step c):
C1) hole from second pad is welded on lug on the conductive layer of lug ejector.
6. the assembly method of battery pole ear as claimed in claim 5 and cover plate is characterized in that: described step c1), adopt the lf weldering to be connected between the conductive layer of lug and lug ejector.
7. the assembly method of battery pole ear as claimed in claim 2 and cover plate, it is characterized in that: described step c) realizes in the following manner: the cooperation by screw bolt and nut is locked at second pad on the lug ejector, and lug is pressed between second pad and the lug ejector.
8. the assembly method of battery pole ear as claimed in claim 7 and cover plate is characterized in that: in the described step d), the pole on bolt one end and the battery cover board is connected and fixed.
9. the assembly method of battery pole ear as claimed in claim 8 and cover plate is characterized in that: in the described step d), the centre bore of offering on bolt one end and the pole is cooperated, and adopt the lf weldering to realize being connected and fixed of bolt end and pole.
10. the assembly method of battery pole ear as claimed in claim 1 and cover plate is characterized in that: in the described step b), the conductive layer that a plurality of lugs is extended back and lug ejector respectively along the outer rim place of lug ejector electrically contacts.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810142440A CN101651186A (en) | 2008-08-15 | 2008-08-15 | Method for assembling lugs and cover plate of battery |
| PCT/CN2009/073282 WO2010017782A1 (en) | 2008-08-15 | 2009-08-17 | Connection structure and assembly method between battery lug and cover plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810142440A CN101651186A (en) | 2008-08-15 | 2008-08-15 | Method for assembling lugs and cover plate of battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101651186A true CN101651186A (en) | 2010-02-17 |
Family
ID=41673361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810142440A Pending CN101651186A (en) | 2008-08-15 | 2008-08-15 | Method for assembling lugs and cover plate of battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101651186A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306733A (en) * | 2011-08-22 | 2012-01-04 | 力神迈尔斯动力电池系统有限公司 | Connection array and battery cover of lithium ion battery and method for connecting connection array with battery cover |
| CN102842695A (en) * | 2011-06-23 | 2012-12-26 | 三星Sdi株式会社 | Battery pack |
| CN103219486A (en) * | 2013-03-26 | 2013-07-24 | 深圳市力可兴电池有限公司 | Non-welded secondary battery |
| CN106129318A (en) * | 2016-08-25 | 2016-11-16 | 合肥国轩高科动力能源有限公司 | Connecting assembly for battery tab and cover plate |
| CN108032037A (en) * | 2017-11-29 | 2018-05-15 | 华工法利莱切焊系统工程有限公司 | The fully automatic working method of battery pole ear is processed on battery cover board |
| CN111052453A (en) * | 2017-08-30 | 2020-04-21 | 三洋电机株式会社 | Sealed battery and method of making the same |
| CN113346189A (en) * | 2021-06-15 | 2021-09-03 | 安徽捷创科技有限公司 | Lithium battery cap structure convenient to dismantle |
| CN113363633A (en) * | 2019-05-15 | 2021-09-07 | 广东微电新能源有限公司 | Button-type battery and method for manufacturing the same |
| CN114284644A (en) * | 2021-12-22 | 2022-04-05 | 远景动力技术(江苏)有限公司 | Switching structure and contain its full utmost point ear book core, full utmost point ear battery |
| CN115548415A (en) * | 2022-11-29 | 2022-12-30 | 中自环保科技股份有限公司 | Combination method of soft-packaged large cylindrical battery based on full tabs |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003086165A (en) * | 2001-09-11 | 2003-03-20 | Sanyo Electric Co Ltd | Cylindrical battery |
-
2008
- 2008-08-15 CN CN200810142440A patent/CN101651186A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003086165A (en) * | 2001-09-11 | 2003-03-20 | Sanyo Electric Co Ltd | Cylindrical battery |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102842695A (en) * | 2011-06-23 | 2012-12-26 | 三星Sdi株式会社 | Battery pack |
| CN102842695B (en) * | 2011-06-23 | 2016-03-16 | 三星Sdi株式会社 | Power brick |
| CN102306733A (en) * | 2011-08-22 | 2012-01-04 | 力神迈尔斯动力电池系统有限公司 | Connection array and battery cover of lithium ion battery and method for connecting connection array with battery cover |
| CN103219486A (en) * | 2013-03-26 | 2013-07-24 | 深圳市力可兴电池有限公司 | Non-welded secondary battery |
| CN103219486B (en) * | 2013-03-26 | 2015-08-19 | 深圳市力可兴电池有限公司 | Non-solder secondary cell |
| CN106129318A (en) * | 2016-08-25 | 2016-11-16 | 合肥国轩高科动力能源有限公司 | Connecting assembly for battery tab and cover plate |
| CN106129318B (en) * | 2016-08-25 | 2018-11-02 | 合肥国轩高科动力能源有限公司 | Connecting assembly for battery tab and cover plate |
| CN111052453A (en) * | 2017-08-30 | 2020-04-21 | 三洋电机株式会社 | Sealed battery and method of making the same |
| CN111052453B (en) * | 2017-08-30 | 2022-08-30 | 三洋电机株式会社 | Sealed battery and method for manufacturing same |
| CN108032037B (en) * | 2017-11-29 | 2019-06-21 | 华工法利莱切焊系统工程有限公司 | The fully automatic working method of battery pole ear is processed on battery cover board |
| CN108032037A (en) * | 2017-11-29 | 2018-05-15 | 华工法利莱切焊系统工程有限公司 | The fully automatic working method of battery pole ear is processed on battery cover board |
| CN113363633A (en) * | 2019-05-15 | 2021-09-07 | 广东微电新能源有限公司 | Button-type battery and method for manufacturing the same |
| CN113363633B (en) * | 2019-05-15 | 2023-06-06 | 广东微电新能源有限公司 | Button-type battery and manufacturing method thereof |
| CN113346189A (en) * | 2021-06-15 | 2021-09-03 | 安徽捷创科技有限公司 | Lithium battery cap structure convenient to dismantle |
| CN114284644A (en) * | 2021-12-22 | 2022-04-05 | 远景动力技术(江苏)有限公司 | Switching structure and contain its full utmost point ear book core, full utmost point ear battery |
| CN114284644B (en) * | 2021-12-22 | 2024-02-20 | 远景动力技术(江苏)有限公司 | Switching structure and full-tab winding core and full-tab battery comprising same |
| CN115548415A (en) * | 2022-11-29 | 2022-12-30 | 中自环保科技股份有限公司 | Combination method of soft-packaged large cylindrical battery based on full tabs |
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Application publication date: 20100217 |