CN105047833B - A kind of cover board installation method of rectangular cell - Google Patents
A kind of cover board installation method of rectangular cell Download PDFInfo
- Publication number
- CN105047833B CN105047833B CN201510295012.6A CN201510295012A CN105047833B CN 105047833 B CN105047833 B CN 105047833B CN 201510295012 A CN201510295012 A CN 201510295012A CN 105047833 B CN105047833 B CN 105047833B
- Authority
- CN
- China
- Prior art keywords
- cover board
- rectangular
- rectangular cell
- shell
- installation method
- 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.)
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Links
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000009434 installation Methods 0.000 title claims abstract description 15
- 238000003780 insertion Methods 0.000 claims abstract description 6
- 230000037431 insertion Effects 0.000 claims abstract description 6
- 230000035515 penetration Effects 0.000 claims description 6
- 238000003466 welding Methods 0.000 abstract description 17
- 238000012797 qualification Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
- H01M50/15—Lids or covers characterised by their shape for prismatic or rectangular cells
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses a kind of cover board installation methods of rectangular cell, include the following steps: (a), one piece of cover board is provided first, the cover board lower surface is surrounded by the first rectangular step, the cover board upper surface is surrounded by the second rectangular step, and the distance between step surface and the step surface of the second rectangular step of the first rectangular step are 0.1~0.5mm；(b), the shell of cover board insertion rectangular cell (c), using laser generator is welded, the case weld of cover board and rectangular cell is made to become whole.The present invention in the welding process, avoids the problem of laser can be across the fit clearance of cover board and housing cavity, so that inside battery pole group will not be burnt out, influences the qualification rate of product.
Description
Technical field
The present invention relates to a kind of cover board installation methods of rectangular cell, belong to battery manufacturing field.
Background technique
In the prior art, the cover board welding of rectangular cell especially lithium battery is welded using side substantially, using side Welding
Cover board is directly to be buckled on battery case, and the outer perimeter of cover board and the outer perimeter of battery case are identical, so under the Welding of side
Soldered in battery side, so side weld during, need multiple rotary battery to be welded, at the same every time rotation
When be also required to first close laser, be then turned on after rotation, increase the process time；And after rotating, the position of battery case
It may change, cause welding that may misplace.
For example, the Chinese invention patent application of Publication No. CN103915586A disclose a kind of cover plate of power battery and its
Substrate, is provided with positive post holes and the cathode post holes being respectively used to across positive terminal and negative terminal on substrate, positive post holes it is upper
Surface and the lower surface of cathode post holes are respectively arranged with rectangular step, and the upper surface around cathode post holes is additionally provided with a ring cross-section
Cross-sectional view for the indentation of up-side down triangle, power battery substrate is shown in Figure 1, the side which uses when welding
Weldering, i.e. the weld seam side that appears in shell, it is therefore desirable to which multiple rotary battery and laser beam switching are welded.
Based on the defect of existing side Welding, part of the manufacturer starts to be easier using the Automation of Welding than side Welding real
Existing and automation equipment puts into low overhead welding technique, and the cover board of overhead welding technique is directly embedded into battery case, the upper surface of cover board
Be in same level with the top surface of battery case, thus the soldered under overhead welding technique be on battery top surface, this
Rotation battery case and Q-swith laser Q are not needed in sample welding process.But existing overhead welding has the disadvantage in that in 1, shell
Portion needs to manufacture the step for holding cover board, thus needs to increase the cost of shell；2, cover board and shell need precise match, this
Sample is just very high to the required precision of the outer dimension of cover board and housing cavity size, will increase cost；3, in the welding process,
It may influence to produce to burn out inside battery pole group there is a situation where the fit clearance that laser beam passes through cover board and housing cavity
The qualification rate of product, the product for resulting even in hidden danger of quality come into the market.
Therefore the new cover board installation method of one kind is developed to solve the above problems, it is clear that there is positive realistic meaning.
Summary of the invention
Goal of the invention of the invention is to provide a kind of cover board installation method of rectangular cell, solves laser in the prior art and opens
It closes number and excessively avoids the problem of laser can be across the fit clearance of cover board and housing cavity simultaneously.
To achieve the above object of the invention, the technical solution adopted by the present invention is that: a kind of cover board installation method of rectangular cell,
Include the following steps:
(a), one piece of cover board is provided first, and the cover board lower surface is surrounded by the first rectangular step, on the cover board
Surface is surrounded by the second rectangular step, between the step surface of the first rectangular step and the step surface of the second rectangular step
Distance be 0.1~0.5mm；
(b), the shell of cover board insertion rectangular cell, the first rectangular step and shell are cooperated, so that cover board
The shell of insertion rectangular cell does not move；
(c), using laser generator, laser is allowed to irradiate the second rectangular step from top to bottom, it is rectangular along the second of cover board
The step surface walking progress deep penetration weldering in one week of step, makes the case weld of cover board and rectangular cell become whole.
Preferably, the distance between step surface of the step surface of the described first rectangular step and the second rectangular step is 0.25
~0.35mm.
Preferably, the width of the step surface of the described second rectangular step is 0.3~1.5mm.
Further technical solution, the width of the step surface of the second rectangular step are 0.5~1.2mm.
Due to the above technical solutions, the present invention has the following advantages over the prior art:
1. the present invention holds the step of cover board without manufacturing inside battery case, reduce cost；
2. the present invention is reduced and is wanted to the precision of cover board outer dimension and housing cavity size without accurate insertion shell
It asks；
3. the present invention reduces laser switch number in the welding process, be conducive to extend laser generator uses the longevity
Life；
4. the present invention is in the welding process, the problem of laser can be across the fit clearance of cover board and housing cavity is avoided,
To which inside battery pole group will not be burnt out, the qualification rate of product is influenced.
Detailed description of the invention
Fig. 1 is the cross-sectional view of background technique cover plate；
Fig. 2 is the structural schematic diagram of one cover plate of the embodiment of the present invention；
Fig. 3 is cross-sectional view of the Fig. 2 along the direction A-A；
Fig. 4 is the Local map of B in Fig. 3；
Fig. 5 be in the embodiment of the present invention rectangular cell along the cross-sectional view in the direction A-A.
Wherein: 1, cover board；2, the first rectangular step；3, the second rectangular step.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and embodiments:
Embodiment one: a kind of cover board installation method of rectangular cell, the structure of rectangular cell is shown in Figure 5, including such as
Lower step:
(a), one piece of cover board 1 is provided first, and 1 lower surface of cover board is surrounded by the first rectangular step 2, the cover board
1 upper surface is surrounded by the second rectangular step 3, the step surface of the first rectangular step 2 and the step of the second rectangular step 3
The distance between face is 0.25mm；
(b), cover board 1 is embedded in the shell 4 of rectangular cell, the first rectangular step 2 cooperates with shell, so that lid
The shell that plate 1 is embedded in rectangular cell does not move；
(c), using laser generator, laser is allowed to irradiate the second rectangular step 3 from top to bottom, along the second party of cover board 1
The step surface walking progress deep penetration weldering in one week of shape step 3, makes the case weld of cover board 1 and rectangular cell become whole.
In the present embodiment, the width of the step surface of the second rectangular step 3 is 0.5mm.
Embodiment two: a kind of cover board installation method of rectangular cell includes the following steps:
(a), one piece of cover board 1 is provided first, and 1 lower surface of cover board is surrounded by the first rectangular step 2, the cover board
1 upper surface is surrounded by the second rectangular step 3, the step surface of the first rectangular step 2 and the step of the second rectangular step 3
The distance between face is 0.35mm；
(b), cover board 1 is embedded in the shell 4 of rectangular cell, the first rectangular step 2 cooperates with shell, so that lid
The shell that plate 1 is embedded in rectangular cell does not move；
(c), using laser generator, laser is allowed to irradiate the second rectangular step 3 from top to bottom, along the second party of cover board 1
The step surface walking progress deep penetration weldering in one week of shape step 3, makes the case weld of cover board 1 and rectangular cell become whole.
In the present embodiment, the width of the step surface of the second rectangular step 3 is 0.5mm.
Embodiment three: a kind of cover board installation method of rectangular cell includes the following steps:
(a), one piece of cover board 1 is provided first, and 1 lower surface of cover board is surrounded by the first rectangular step 2, the cover board
1 upper surface is surrounded by the second rectangular step 3, the step surface of the first rectangular step 2 and the step of the second rectangular step 3
The distance between face is 0.25mm；
(b), cover board 1 is embedded in the shell 4 of rectangular cell, the first rectangular step 2 cooperates with shell, so that lid
The shell that plate 1 is embedded in rectangular cell does not move；
(c), using laser generator, laser is allowed to irradiate the second rectangular step 3 from top to bottom, along the second party of cover board 1
The step surface walking progress deep penetration weldering in one week of shape step 3, makes the case weld of cover board 1 and rectangular cell become whole.
In the present embodiment, the width of the step surface of the second rectangular step 3 is 1.2mm.
Example IV: a kind of cover board installation method of rectangular cell includes the following steps:
(a), one piece of cover board 1 is provided first, and 1 lower surface of cover board is surrounded by the first rectangular step 2, the cover board
1 upper surface is surrounded by the second rectangular step 3, the step surface of the first rectangular step 2 and the step of the second rectangular step 3
The distance between face is 0.35mm；
(b), cover board 1 is embedded in the shell 4 of rectangular cell, the first rectangular step 2 cooperates with shell, so that lid
The shell that plate 1 is embedded in rectangular cell does not move；
(c), using laser generator, laser is allowed to irradiate the second rectangular step 3 from top to bottom, along the second party of cover board 1
The step surface walking progress deep penetration weldering in one week of shape step 3, makes the case weld of cover board 1 and rectangular cell become whole.
In the present embodiment, the width of the step surface of the second rectangular step 3 is 1.2mm.
Claims (4)
1. a kind of cover board installation method of rectangular cell, characterized by the following steps:
(a), one piece of cover board (1) is provided first, and cover board (1) lower surface is surrounded by the first rectangular step (2), the lid
Plate (1) upper surface is surrounded by the second rectangular step (3), the step surface and the second square platform of the first rectangular step (2)
The distance between step surface of rank (3) is 0.1~0.5mm；
(b), the shell (4) of cover board (1) insertion rectangular cell, the first rectangular step (2) and shell are cooperated, so that
The shell of cover board (1) insertion rectangular cell does not move；
(c), using laser generator, laser is allowed to irradiate the second rectangular step (3) from top to bottom, along the second party of cover board (1)
The step surface walking progress deep penetration weldering in one week of shape step (3), makes the case weld of cover board (1) and rectangular cell become whole.
2. the cover board installation method of rectangular cell according to claim 1, it is characterised in that: the first rectangular step
(2) the distance between step surface of the rectangular step of step surface and second (3) is 0.25~0.35mm.
3. the cover board installation method of rectangular cell according to claim 1, it is characterised in that: the second rectangular step
(3) width of step surface is 0.3~1.5mm.
4. the cover board installation method of rectangular cell according to claim 3, it is characterised in that: the second rectangular step
(3) width of step surface is 0.5~1.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510295012.6A CN105047833B (en) | 2015-06-02 | 2015-06-02 | A kind of cover board installation method of rectangular cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510295012.6A CN105047833B (en) | 2015-06-02 | 2015-06-02 | A kind of cover board installation method of rectangular cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105047833A CN105047833A (en) | 2015-11-11 |
| CN105047833B true CN105047833B (en) | 2018-12-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510295012.6A Active CN105047833B (en) | 2015-06-02 | 2015-06-02 | A kind of cover board installation method of rectangular cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105047833B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004195490A (en) * | 2002-12-17 | 2004-07-15 | Toyota Motor Corp | Weldments and methods for manufacturing the same |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2859815Y (en) * | 2005-12-29 | 2007-01-17 | 比亚迪股份有限公司 | Battery cover sheet and electric battery |
| KR101004401B1 (en) * | 2008-04-24 | 2010-12-28 | 삼성에스디아이 주식회사 | Battery pack |
| JP6226413B2 (en) * | 2013-02-20 | 2017-11-08 | 株式会社Ｇｓユアサ | Storage element and method for manufacturing lid plate |
| CN203674281U (en) * | 2013-11-29 | 2014-06-25 | 武汉中原长江科技发展有限公司 | Lithium battery cover plate |
-
2015
- 2015-06-02 CN CN201510295012.6A patent/CN105047833B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004195490A (en) * | 2002-12-17 | 2004-07-15 | Toyota Motor Corp | Weldments and methods for manufacturing the same |
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| Publication number | Publication date |
|---|---|
| CN105047833A (en) | 2015-11-11 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 215153 Suzhou high tech Zone, Jiangsu science and Technology City, Jinsha River Road, No. 181 Applicant after: Phylion battery Limited by Share Ltd Address before: 215153 Suzhou high tech Zone, Jiangsu City, science and technology zone, Jinsha River Road, No. 181 Applicant before: Suzhou Phylion Battery Co., Ltd. |
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| GR01 | Patent grant |