CN106903422A - A kind of lithium ion aluminum-shell battery mouth-sealing method - Google Patents
A kind of lithium ion aluminum-shell battery mouth-sealing method Download PDFInfo
- Publication number
- CN106903422A CN106903422A CN201710298151.3A CN201710298151A CN106903422A CN 106903422 A CN106903422 A CN 106903422A CN 201710298151 A CN201710298151 A CN 201710298151A CN 106903422 A CN106903422 A CN 106903422A
- Authority
- CN
- China
- Prior art keywords
- aluminum
- shell battery
- sheet metal
- soldering tip
- sealing
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
- B23K20/1225—Particular aspects of welding with a non-consumable tool
Abstract
The present invention relates to a kind of lithium ion aluminum-shell battery mouth-sealing method, the method is comprised the following steps：Treat that sealing part places a sheet metal in aluminum-shell battery；The lateral wall and aluminum-shell battery of sheet metal treat that the gap between the madial wall of sealing part is weld seam；Sealing part is treated by what sheet metal was welded on aluminum-shell battery using the soldering appliance with stirring soldering tip：Stirring soldering tip rotation, is vertically pressed into from the surface of weld seam；Make stirring soldering tip along weld movement, by sheet metal together with aluminum-shell battery case weld, by after one week, returning to start position；Stirring soldering tip slows down, and lifts stirring soldering tip, and mixing needle is extracted out from welding region, and keyhole is left on withdrawn position surface, completes aluminum-shell battery sealing.From above technical scheme, the present invention can solve the problem that the deficiencies in the prior art, greatly improve the sealing and yields of aluminum-shell battery sealing.
Description
Technical field
The present invention relates to cell art, and in particular to a kind of lithium ion aluminum-shell battery mouth-sealing method.
Background technology
With flourishing for new-energy automobile industry so that the growth very fast for the demand of electrokinetic cell, future is dynamic
Power battery fabrication tends to extensive, intellectuality.Therefore, in order to meet the market demand, it is necessary to assure each of battery making
Technique has reliability high.
At present, most of electrokinetic cells using aluminum hull as battery case, aluminum-shell battery after fluid injection to fluid injection
Mouth is sealed.Existing sealing process has Laser Welding to put two kinds of adhesive curing sealing, both the above mode after sealing and beating steel ball
There is a problem of that sealing reliability is low.When sealing is automated, often yields is not high.As Laser Welding is sealed, if two pieces
Welding position is equipped with deviation, or there is dust spot on its surface, then can produce small weld seam.
The content of the invention
It is an object of the invention to provide a kind of lithium ion aluminum-shell battery mouth-sealing method, the method can solve the problem that prior art
Present in it is not enough, greatly improve the sealing and yields of aluminum-shell battery sealing.
To achieve the above object, present invention employs following technical scheme：
A kind of lithium ion aluminum-shell battery mouth-sealing method, the method include following order the step of：
（1）Treat that sealing part places a sheet metal in aluminum-shell battery, and make the upper surface of sheet metal and aluminum-shell battery housing
Upper surface is concordant；The lateral wall and aluminum-shell battery of the sheet metal treat that the gap between the madial wall of sealing part is weld seam, described
The width of weld seam is not more than 0.2mm；
（2）Sealing part is treated by what sheet metal was welded on aluminum-shell battery using the soldering appliance with stirring soldering tip：
（21）Stirring soldering tip rotation, with rotating speed v1Vertically it is pressed into from the surface of weld seam, until the shaft shoulder is less than aluminum-shell battery housing
0.05 ~ 0.2mm of upper surface；Now mixing needle is located at the centre of weld seam；
（22）The rotating speed for stirring soldering tip is ramped up to v2, and make stirring soldering tip along weld movement, now to keep the shaft shoulder
All the time the aluminum-shell battery housing and sheet metal of weld seam both sides are pressed, by sheet metal together with aluminum-shell battery case weld, warp
After after one week, start position is returned to；
（23）Stirring soldering tip slows down, and lifts stirring soldering tip, and mixing needle is extracted out from welding region, and spoon is left on withdrawn position surface
Hole, completes aluminum-shell battery sealing.
Further, the sheet metal be aluminium, magnesium, copper, lead, titanium, zinc in any one or be aluminium, magnesium, copper, titanium close
Gold.
Further, the width of the weld seam is less than 0.05mm.
Further, the stirring soldering tip is round table-like.
Further, the v2Span be 200 ~ 8000r/min.
Further, the depth of the keyhole is 0.01 ~ 0.5mm.
From above technical scheme, the present invention can solve the problem that the deficiencies in the prior art, greatly improve aluminum hull electricity
The sealing and yields of pond sealing.
Brief description of the drawings
Fig. 1 is lithium ion aluminum-shell battery capping processes schematic diagram；
Fig. 2 is lithium ion aluminum-shell battery capping processes generalized section；
Fig. 3 is lithium ion aluminum-shell battery sealing effect schematic diagram.
Wherein：
1st, soldering tip is stirred, 2, sheet metal, 3, battery container, 4, the welding region after welding, 1-1, the shaft shoulder, 1-2, mixing needle.
Specific embodiment
The present invention will be further described below in conjunction with the accompanying drawings：
A kind of lithium ion aluminum-shell battery mouth-sealing method as shown in Figure 1-Figure 3, the method include following order the step of：
（1）Treat that sealing part places a sheet metal adaptable with the shape of sealing part is treated in aluminum-shell battery.In the present embodiment
In, sheet metal is using circular aluminium flake.Sheet metal insertion is arranged on aluminum-shell battery shell in the groove for treating sealing part.The gold
The upper surface for belonging to piece is concordant with the upper surface of aluminum-shell battery housing.The lateral wall of the sheet metal treats sealing part with aluminum-shell battery
Gap between madial wall is weld seam, and the width of the weld seam is not more than 0.2mm.By making the upper surface of sheet metal and aluminum hull electricity
The upper surface of pond housing is concordant, can make gold when the shaft shoulder presses down on the sheet metal and aluminum-shell battery housing of weld seam both sides
Category piece and aluminum-shell battery stressed shell it is uniform, it is ensured that sheet metal be integrated with aluminum-shell battery case weld after welding region it is steady
It is qualitative.Additionally, being designed by the width to weld seam, can farthest ensure weld strength.
（2）Using clamping plate by whole aluminum-shell battery fixation, then using has the soldering appliance for stirring soldering tip by gold
What category piece was welded on aluminum-shell battery treats sealing part：
（21）Stirring soldering tip rotation, is vertically pressed into rotating speed 1000r/min from the surface of weld seam, until the shaft shoulder is less than aluminum hull electricity
0.05 ~ 0.2mm of pond housing upper surface；Now, as shown in Fig. 2 mixing needle is located at the centre of weld seam.Preferably, the shaft shoulder is less than aluminium
Housing battery housing upper surface 0.2mm.The shaft shoulder is subdued and is conducive to welding effect, while so that smooth welded seam.
（22）The rotating speed for stirring soldering tip is ramped up to 2000r/min, and stirring soldering tip is welded along weld seam and moved.
The shaft shoulder is now kept to press the aluminum-shell battery housing and sheet metal of weld seam both sides all the time, by sheet metal and aluminum-shell battery housing
Weld together, by after one week, returning to start position.
（23）Stirring soldering tip slows down, and slowly lifts stirring soldering tip, mixing needle is extracted out from welding region, in withdrawn position table
Face leaves keyhole, completes welding, that is, complete aluminum-shell battery sealing.The welding region is that sheet metal is waited to seal with aluminum-shell battery housing
Region between mouthful.
Further, the sheet metal be aluminium, magnesium, copper, lead, titanium, zinc in any one or be aluminium, magnesium, copper, titanium close
Gold.Sheet metal is shaped as regular shape.
Further, the width of the weld seam is less than 0.05mm.Preferably, the width of weld seam is less than 0.05mm.By right
The width of weld seam is designed, and can farthest ensure weld strength.
Further, the stirring soldering tip is round table-like.
Further, the v2Span be 200 ~ 8000r/min.Stirring the rotating speed of soldering tip can influence the effect of welding
Rate and weld penetration, the span can improve welding efficiency on the basis of weld penetration is ensured.
Further, the depth of the keyhole is 0.01 ~ 0.5mm.
The design sketch completed after aluminum-shell battery sealing is as shown in Figure 3.Metallographic Analysis is carried out by welding region, gold
Category fusion penetration in 1.5 ~ 1.6mm, the upper plane low 0.2mm of the upper surface than aluminum-shell battery housing of welding region, the depth of keyhole is
0.6mm, all indexs are capable of achieving the sealing to battery in processing range.The present invention is using agitating friction weldering to lithium ion aluminium
Housing battery is sealed, and carries out rigid support using sheet metal, can either so ensure weld strength and reliability, again can
By sheet metal avoid because welding when pressure caused by deform.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to model of the invention
Enclose and be defined, on the premise of design spirit of the present invention is not departed from, those of ordinary skill in the art are to technical side of the invention
Various modifications and improvement that case is made, all should fall into the protection domain of claims of the present invention determination.
Claims (6)
1. a kind of lithium ion aluminum-shell battery mouth-sealing method, it is characterised in that：The step of the method includes following order：
（1）Treat that sealing part places a sheet metal in aluminum-shell battery, and make the upper surface of sheet metal and aluminum-shell battery housing
Upper surface is concordant；The lateral wall and aluminum-shell battery of the sheet metal treat that the gap between the madial wall of sealing part is weld seam, described
The width of weld seam is not more than 0.2mm；
（2）Sealing part is treated by what sheet metal was welded on aluminum-shell battery using the soldering appliance with stirring soldering tip：
（21）Stirring soldering tip rotation, with rotating speed v1Vertically it is pressed into from the surface of weld seam, until the shaft shoulder is less than on aluminum-shell battery housing
0.05 ~ 0.2mm of surface；Now mixing needle is located at the centre of weld seam；
（22）The rotating speed for stirring soldering tip is ramped up to v2, and make stirring soldering tip along weld movement, now to keep the shaft shoulder to begin
The aluminum-shell battery housing and sheet metal of weld seam both sides are pressed eventually, by sheet metal together with aluminum-shell battery case weld, are passed through
After one week, start position is returned to；
（23）Stirring soldering tip slows down, and lifts stirring soldering tip, and mixing needle is extracted out from welding region, and spoon is left on withdrawn position surface
Hole, completes aluminum-shell battery sealing.
2. a kind of lithium ion aluminum-shell battery mouth-sealing method according to claim 1, it is characterised in that：The sheet metal is
In aluminium, magnesium, copper, lead, titanium, zinc any one or be aluminium, magnesium, copper, titanium alloy.
3. a kind of lithium ion aluminum-shell battery mouth-sealing method according to claim 1, it is characterised in that：The width of the weld seam
Less than 0.05mm.
4. a kind of lithium ion aluminum-shell battery mouth-sealing method according to claim 1, it is characterised in that：It is described stirring soldering tip be
It is round table-like.
5. a kind of lithium ion aluminum-shell battery mouth-sealing method according to claim 1, it is characterised in that：The v2Value model
It is 200 ~ 8000r/min to enclose.
6. a kind of lithium ion aluminum-shell battery mouth-sealing method according to claim 1, it is characterised in that：The depth of the keyhole
It is 0.01 ~ 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710298151.3A CN106903422A (en) | 2017-04-30 | 2017-04-30 | A kind of lithium ion aluminum-shell battery mouth-sealing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710298151.3A CN106903422A (en) | 2017-04-30 | 2017-04-30 | A kind of lithium ion aluminum-shell battery mouth-sealing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106903422A true CN106903422A (en) | 2017-06-30 |
Family
ID=59210277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710298151.3A Pending CN106903422A (en) | 2017-04-30 | 2017-04-30 | A kind of lithium ion aluminum-shell battery mouth-sealing method |
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| CN (1) | CN106903422A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057995A (en) * | 2019-03-30 | 2019-07-26 | 苏州宇量电池有限公司 | A kind of welding penetration detection method of lithium ion battery aluminum hull |
| CN114932305A (en) * | 2022-04-28 | 2022-08-23 | 国营四达机械制造公司 | Friction stir welding repair method for crack defects of side wall of part hole |
Citations (5)
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| JP2003019575A (en) * | 2001-07-05 | 2003-01-21 | Hitachi Ltd | Manufacturing method of hermetically sealed container and that of enclosed cell |
| JP2014102895A (en) * | 2012-11-16 | 2014-06-05 | Toyota Industries Corp | Closed container manufacturing method |
| CN104209648A (en) * | 2014-09-04 | 2014-12-17 | 江苏科技大学 | Device and method for double-shaft shoulder FSW (Friction Stir Welding) based on temperature feedback of leader region |
| CN105118943A (en) * | 2015-08-31 | 2015-12-02 | 昆山斯格威电子科技有限公司 | Laminated type lithium battery and shell packaging method thereof |
| CN105234550A (en) * | 2015-08-31 | 2016-01-13 | 昆山斯格威电子科技有限公司 | Shell and shell cover packaging method for laminated lithium battery on basis of stirring friction welding |
-
2017
- 2017-04-30 CN CN201710298151.3A patent/CN106903422A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003019575A (en) * | 2001-07-05 | 2003-01-21 | Hitachi Ltd | Manufacturing method of hermetically sealed container and that of enclosed cell |
| JP2014102895A (en) * | 2012-11-16 | 2014-06-05 | Toyota Industries Corp | Closed container manufacturing method |
| CN104209648A (en) * | 2014-09-04 | 2014-12-17 | 江苏科技大学 | Device and method for double-shaft shoulder FSW (Friction Stir Welding) based on temperature feedback of leader region |
| CN105118943A (en) * | 2015-08-31 | 2015-12-02 | 昆山斯格威电子科技有限公司 | Laminated type lithium battery and shell packaging method thereof |
| CN105234550A (en) * | 2015-08-31 | 2016-01-13 | 昆山斯格威电子科技有限公司 | Shell and shell cover packaging method for laminated lithium battery on basis of stirring friction welding |
Non-Patent Citations (1)
| Title |
|---|
| 王炎金: "《铝合金车体焊接工艺》", 31 July 2011, 机械工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057995A (en) * | 2019-03-30 | 2019-07-26 | 苏州宇量电池有限公司 | A kind of welding penetration detection method of lithium ion battery aluminum hull |
| CN114932305A (en) * | 2022-04-28 | 2022-08-23 | 国营四达机械制造公司 | Friction stir welding repair method for crack defects of side wall of part hole |
| CN114932305B (en) * | 2022-04-28 | 2023-05-12 | 国营四达机械制造公司 | Friction stir welding repair method for crack defect of side wall of part hole |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170630 |