CN114551966A - Battery packaging method and system and battery - Google Patents
Battery packaging method and system and battery Download PDFInfo
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- CN114551966A CN114551966A CN202210149700.1A CN202210149700A CN114551966A CN 114551966 A CN114551966 A CN 114551966A CN 202210149700 A CN202210149700 A CN 202210149700A CN 114551966 A CN114551966 A CN 114551966A
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- cover plate
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- box body
- colloidal layer
- battery
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- 238000004806 packaging method and process Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000003466 welding Methods 0.000 claims abstract description 97
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 19
- 238000009826 distribution Methods 0.000 claims description 4
- 239000000084 colloidal system Substances 0.000 claims description 3
- IHQKEDIOMGYHEB-UHFFFAOYSA-M sodium dimethylarsinate Chemical class [Na+].C[As](C)([O-])=O IHQKEDIOMGYHEB-UHFFFAOYSA-M 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 9
- 239000003292 glue Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Images
Classifications
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- 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
- H01M50/183—Sealing members
- H01M50/186—Sealing members characterised by the disposition of the sealing members
-
- 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
- H01M10/04—Construction or manufacture in general
-
- 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
-
- 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
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
- H01M50/169—Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
-
- 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
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
- H01M50/171—Lids or covers characterised by the methods of assembling casings with lids using adhesives or sealing agents
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses a battery packaging method and system and a battery, and relates to the technical field of batteries. The battery packaging method is applied to a battery shell, the battery shell comprises a cover plate and a box body, and the battery packaging method comprises the following steps: gluing one side of the cover plate to form a colloidal layer; covering the side of the cover plate where the colloidal layer is located on the box body so as to enable the colloidal layer to be in contact with the box body; and performing laser welding at intervals on the contact track of the cover plate and the box body so as to fill the gap between the cover plate and the box body after the colloidal layer is heated and melted. The battery packaging method provided by the invention is convenient and rapid to operate, time-saving and labor-saving, and has a better sealing effect.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a battery packaging method, a battery packaging system and a battery.
Background
At present, when the battery is packaged through the shell in the market, the mode that the cover plate is directly welded on the box body is generally adopted. The method mainly comprises two welding modes, wherein one welding mode is comprehensive welding along a contact track, and the mode is complex in operation, time-consuming and labor-consuming; the other is spaced spot welding along the contact locus, which has the problem of poor sealing of the shell and the risk of leakage.
Disclosure of Invention
The invention aims to provide a battery packaging method which has the characteristics of convenience and rapidness in operation and better sealing property.
Another object of the present invention is to provide a battery packaging system, which has the advantages of convenient and fast operation and better sealing performance.
It is another object of the present invention to provide a battery pack having better sealing performance.
The invention provides a technical scheme that:
a battery packaging method is applied to a battery shell, the battery shell comprises a cover plate and a box body, and the battery packaging method comprises the following steps:
gluing one side of the cover plate to form a colloidal layer;
covering one side of the cover plate where the colloidal layer is located on the box body so as to enable the colloidal layer to be in contact with the box body;
and performing laser welding at intervals on the contact track of the cover plate and the box body, so that the colloid layer is heated and melted to fill the gap between the cover plate and the box body.
Further, the step of gluing one side of the cover plate to form a colloidal layer includes:
and continuously gluing on one side of the cover plate along an annular track to form an annular colloidal layer corresponding to the opening of the box body.
Further, the step of gluing one side of the cover plate to form a colloidal layer includes:
dispensing is carried out on one side of the cover plate at intervals along an annular track to form an annular colloidal layer with a distribution track corresponding to the opening of the box body.
Further, before the step of performing laser welding at intervals on the contact track of the cover plate and the box body so as to fill the gap between the cover plate and the box body after the colloidal layer is melted by heat, the method further includes:
and positioning and clamping the cover plate and the box body which are covered together.
Further, the apron with the box all is the rectangle, the apron with the contact orbit of box includes first broadside and the second broadside that is parallel to each other to and first long limit and the second long limit that is parallel to each other, carry out interval laser welding on the apron with the contact orbit of box, so that the colloidal layer is heated and melts the back and fills the apron with the step of the clearance between the box includes:
the first wide edge and the second wide edge are welded at intervals in a crossed mode, so that the part, corresponding to the first wide edge and the second wide edge, of the colloidal layer is heated and melted, and then a gap corresponding to the first wide edge and the second wide edge is filled;
and performing cross interval welding on the first long edge and the second long edge so as to fill a gap corresponding to the first long edge and the second long edge after the parts of the colloidal layer corresponding to the first long edge and the second long edge are heated and melted.
Further, the step of welding the first broadside and the second broadside at intervals comprises:
a plurality of first welding point positions are uniformly distributed on the first wide side at intervals;
a plurality of second welding point positions are uniformly distributed on the second wide side at intervals;
and performing cross welding on a plurality of first welding point positions and a plurality of second welding point positions, sequentially performing welding on the plurality of first welding point positions along a first direction, sequentially performing welding on the plurality of second welding point positions along a second direction, and reversing the first direction and the second direction.
Further, the step of welding the first long edge and the second long edge at intervals comprises:
a plurality of third welding point positions are uniformly distributed on the first long edge at intervals;
a plurality of fourth welding point positions are uniformly distributed on the second long edge at intervals;
and performing cross welding on a plurality of third welding point positions and a plurality of fourth welding point positions, sequentially performing welding on the plurality of third welding point positions along a third direction, sequentially performing welding on the plurality of fourth welding point positions along a fourth direction, and enabling the third direction and the fourth direction to be opposite.
The invention also provides a battery packaging system, which is applied to a battery shell, wherein the battery shell comprises a cover plate and a box body, and the battery packaging system comprises:
the gluing device is used for gluing one side of the cover plate to form a colloidal layer;
the covering device is used for covering one side of the cover plate where the colloidal layer is located on the box body so as to enable the colloidal layer to be in contact with the box body;
and the welding device is used for performing laser welding at intervals on the contact track of the cover plate and the box body so as to fill the gap between the cover plate and the box body after the colloidal layer is heated and melted.
Further, the battery packaging system further includes:
and the positioning device is used for positioning and clamping the cover plate and the box body which are covered together.
The invention also provides a battery which is obtained by the battery packaging method, and the battery packaging method comprises the following steps: gluing one side of the cover plate to form a colloidal layer; covering one side of the cover plate where the colloidal layer is located on the box body so as to enable the colloidal layer to be in contact with the box body; and performing laser welding at intervals on the contact track of the cover plate and the box body, so that the colloid layer is heated and melted to fill the gap between the cover plate and the box body.
Compared with the prior art, the battery packaging method provided by the invention has the advantages that before the cover plate and the box body are welded, the glue is coated on the cover plate to form the colloidal layer, and the cover plate and the box body are spot-welded at intervals in a laser welding mode, so that the colloidal layer is heated and melted to be in a liquid state in the welding process and flows along the gap between the cover plate and the box body to fill the gap between the cover plate and the box body. Therefore, the cover plate and the box body are spot-welded, the welding process is convenient and fast, and the glue layer can seal the gap between the cover plate and the box body after being cooled and solidified again. Therefore, the battery packaging method provided by the invention has the beneficial effects that: convenient operation is swift, labour saving and time saving, and sealed effect is better.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the embodiments will be briefly described below. It is appreciated that the following drawings depict only certain embodiments of the invention and are therefore not to be considered limiting of its scope. For a person skilled in the art, it is possible to derive other relevant figures from these figures without inventive effort.
Fig. 1 is a block flow diagram of a battery packaging method according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a battery case;
FIG. 3 is a schematic view of the cover plate of FIG. 2;
FIG. 4 is a block diagram of a sub-step of step S104 in FIG. 1;
FIG. 5 is a block flow diagram of a sub-step of sub-step S1041 in FIG. 4;
FIG. 6 is a block diagram of a sub-step flow of sub-step S1042 in FIG. 4;
fig. 7 is a block diagram of a battery packaging system according to an embodiment of the present invention.
Icon: 10-a battery housing; 11-a cover plate; 12-a box body; 13-a colloidal layer; 100-a battery packaging system; 110-a gluing device; 120-a closing device; 130-a positioning device; 140-welding means.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "inside", "outside", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships that the products of the present invention are conventionally placed in use, or the orientations or positional relationships that are conventionally understood by those skilled in the art, and are used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed" and "connected" and the like are to be broadly construed, for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
The following detailed description of embodiments of the invention refers to the accompanying drawings.
Examples
Referring to fig. 1, fig. 1 is a flow chart illustrating a battery packaging method according to the present embodiment, which is applied to a battery case 10 having a cover plate 11 and a case 12 as shown in fig. 2, and has the characteristics of convenient and fast operation and better sealing property, and specifically includes the following steps:
step S101, one side of the cover plate 11 is glued to form a colloidal layer 13.
The structure of the cover plate 11 to form the colloidal layer 13 is shown in fig. 3, in this embodiment, the colloidal layer 13 is annular and has a shape corresponding to the opening of the box 12, so as to ensure that the colloidal layer 13 can contact with the opening periphery of the box 12 when the cover plate 11 is covered on the box 12.
In the actual gluing process, glue can be continuously applied to one side of the cover plate 11 along the annular track to form the annular colloidal layer 13, and glue can also be dispensed to one side of the cover plate 11 at intervals along the annular track to form the colloidal layer 13 with an annular distribution track, i.e., the colloidal layer 13 can be continuous or discontinuous.
The glue coating material is a sealant, the thickness of the glue layer 13 is between 0.1mm and 1mm, and the preferred value of the embodiment is 0.3 mm.
Further, the battery packaging method may further include:
step S102, the side of the cover plate 11 where the colloidal layer 13 is located is covered on the box 12, so that the colloidal layer 13 contacts the box 12.
In fact, after the step S102 is completed, after the colloidal layer 13 is cured, the cover plate 11 is covered on the box body 12, and in the covered state, the inner edge of the colloidal layer 13 contacts the outer edge of the opening of the box body 12, that is, the colloidal layer 13 is distributed along the outer edge of the box body 12 in the circumferential direction.
In other embodiments, the cover plate 11 and the box body 12 may be closed when the colloidal layer 13 is not cured, so that the box body 12 and the cover plate 11 press the horny layer, that is, the colloidal layer 13 is at least partially located between the opening end surface of the box body 12 and the cover plate 11.
Further, the battery packaging method may further include:
step S103, positioning and clamping the cover plate 11 and the case 12 which are covered together.
After the step S102 is completed, the cover plate 11 and the box body 12 are in a covering state, and in this case, the cover plate 11 and the box body 12 are positioned and fixed by a clamping tool or a wire harness binding manner, so as to prevent the cover plate 11 from displacing relative to the box body 12 in a subsequent welding process and affecting the welding precision.
Further, the battery packaging method may further include:
step S104, performing laser welding at intervals on the contact track between the cover plate 11 and the box body 12, so that the colloidal layer 13 is melted by heat and fills the gap between the cover plate 11 and the box body 12.
In this embodiment, the cover plate 11 and the box 12 are both rectangular, and the contact trajectory of the cover plate 11 and the box 12 refers to the distribution trajectory of the end surface of the opening of the box 12 on the cover plate 11, and includes a first wide side and a second wide side that are parallel to each other, and a first long side and a second long side that are parallel to each other.
Referring to fig. 4, fig. 4 is a block diagram illustrating a sub-step flow of step S104, where step S104 may include:
in the substep S1041, the first broad edge and the second broad edge are welded at intervals, so that the portion of the colloidal layer 13 corresponding to the first broad edge and the second broad edge is heated to melt and then fills the gap corresponding to the first broad edge and the second broad edge.
In this embodiment, during welding, the two wide sides corresponding to the cover plate 11 and the case 12 are first cross-welded, and then the two long sides are cross-welded, so as to gradually release the welding stress and reduce the deformation degree of the cover plate 11 and the case 12.
Referring to fig. 5, fig. 5 is a block flow diagram of a sub-step of the sub-step S1041, and the sub-step S1041 may include:
in sub-step S1041a, a plurality of first solder joint locations are evenly spaced on the first broadside.
And a sub-step S1041b of equally spacing a plurality of second weld locations on the second broadside.
In the sub-step S1041c, the first welding point positions and the second welding point positions are welded in a crossing manner, and the welding for the first welding point positions is performed in a first direction, and the welding for the second welding point positions is performed in a second direction, where the first direction is opposite to the second direction.
For example, if a plurality of first welding point positions on the first wide side are welded from left to right in sequence, a plurality of second welding point positions on the second wide side are welded from right to left in sequence, but the plurality of first welding point positions and the plurality of second welding point positions are welded in a crossed manner.
With continuing reference to fig. 4, step S104 may further include:
and a substep S1042 of performing cross interval welding on the first long side and the second long side, so that the portion of the colloidal layer 13 corresponding to the first long side and the second long side is heated to melt and then fills the gap corresponding to the first long side and the second long side.
In fact, after sub-step S1041 is completed, the gap between the first wide side and the second wide side is already filled with the liquid colloidal layer 13, and when sub-step S1042 is performed, the part of the colloidal layer 13 corresponding to the first long side and the second long side is melted and then flows to join with the colloidal layer 13 corresponding to the first wide side and the second wide side, so as to ensure the sealing property.
Referring to fig. 6, fig. 6 is a block flow diagram of a sub-step of the sub-step S1042, and the sub-step S1042 may include:
and sub-step S1042a, equally spacing a plurality of third weld locations on the first long side.
And sub-step S1042b, equally spacing a plurality of fourth solder joint locations on the second long side.
And a substep S1042c of performing cross welding on the third welding point positions and the fourth welding point positions, sequentially performing welding on the third welding point positions along a third direction, and sequentially performing welding on the fourth welding point positions along a fourth direction, wherein the third direction is opposite to the fourth direction.
In summary, according to the battery packaging method provided by this embodiment, the cover plate 11 is coated with the glue to form the colloidal layer 13, and the cover plate 11 and the case 12 are positioned and clamped before welding, so as to prevent displacement and ensure welding accuracy. And adopt laser welding to carry out interval spot welding when welding apron 11 and box 12, reduce the welding degree of difficulty, welding process labour saving and time saving to make colloidal layer 13 melt and fill apron 11 and box 12 clearance in the welding process, form sealedly after the solidification, have splendid sealing performance.
Therefore, the battery packaging method provided by the embodiment is convenient and rapid to operate, time-saving and labor-saving, and has a better sealing effect.
Referring to fig. 7, fig. 7 is a block diagram illustrating a structure of the battery packaging system 100. The battery packaging system 100 provided in this embodiment is applied to the battery case 10 shown in fig. 2, the battery case 10 includes a cover plate 11 and a case 12, and the battery packaging system 100 includes a glue applying device 110, a covering device 120, a positioning device 130 and a welding device 140.
The gluing device 110 is used for gluing one side of the cover plate 11 to form the colloidal layer 13, and in fact, the gluing device 110 is used for executing the step S101 of the aforementioned battery packaging method.
The covering device 120 is used for covering the side of the cover plate 11 where the colloidal layer 13 is located on the box body 12, so that the colloidal layer 13 is in contact with the box body 12. In practice, the covering device 120 is used to execute the step S102 of the battery packaging method.
The positioning device 130 is used for positioning and clamping the cover plate 11 and the box body 12 which are covered together. In practice, the positioning device 130 is used to execute the step S103 of the battery packaging method.
The welding device 140 is used for performing laser welding at intervals on a contact track of the cover plate 11 and the box body 12, so that the colloidal layer 13 is heated and melted to fill a gap between the cover plate 11 and the box body 12. In practice, the welding device 140 is used to perform step S104 of the battery packaging method and its related sub-steps.
Therefore, the battery packaging system 100 provided by the embodiment has the advantages of convenient and fast operation, time and labor saving, and better sealing effect.
The embodiment also provides a battery, and the battery is obtained by packaging the battery packaging method. The battery has the characteristics of better sealing performance and convenient and fast packaging process.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A battery packaging method is characterized in that the method is applied to a battery shell, the battery shell comprises a cover plate and a box body, and the battery packaging method comprises the following steps:
gluing one side of the cover plate to form a colloidal layer;
covering one side of the cover plate where the colloidal layer is located on the box body so as to enable the colloidal layer to be in contact with the box body;
and performing laser welding at intervals on the contact track of the cover plate and the box body, so that the colloid layer is heated and melted to fill the gap between the cover plate and the box body.
2. The method for encapsulating a battery according to claim 1, wherein the step of gluing one side of the cover plate to form a colloidal layer comprises:
and continuously gluing on one side of the cover plate along an annular track to form an annular colloidal layer corresponding to the opening of the box body.
3. The method for encapsulating a battery according to claim 1, wherein the step of gluing one side of the cover plate to form a colloidal layer comprises:
dispensing is carried out on one side of the cover plate at intervals along an annular track to form a colloidal layer with an annular distribution track corresponding to the opening of the box body.
4. The battery packaging method according to claim 1, wherein before the step of performing laser welding at intervals on the contact tracks of the cover plate and the case body to fill the gap between the cover plate and the case body after the colloidal layer is melted by heat, the method further comprises:
and positioning and clamping the cover plate and the box body which are covered together.
5. The battery packaging method according to claim 1, wherein the cover plate and the case are rectangular, the contact track of the cover plate and the case comprises a first wide side and a second wide side which are parallel to each other, and a first long side and a second long side which are parallel to each other, and the step of performing laser welding at intervals on the contact track of the cover plate and the case so that the colloidal layer is melted by heat and then fills the gap between the cover plate and the case comprises:
the first wide edge and the second wide edge are welded at intervals in a crossed mode, so that the part, corresponding to the first wide edge and the second wide edge, of the colloidal layer is heated and melted, and then a gap corresponding to the first wide edge and the second wide edge is filled;
and performing cross interval welding on the first long edge and the second long edge so as to fill a gap corresponding to the first long edge and the second long edge after the parts of the colloidal layer corresponding to the first long edge and the second long edge are heated and melted.
6. The battery packaging method of claim 5, wherein the step of cross-space welding the first and second broadsides comprises:
a plurality of first welding point positions are uniformly distributed on the first wide side at intervals;
a plurality of second welding point positions are uniformly distributed on the second wide edge at intervals;
and performing cross welding on a plurality of first welding point positions and a plurality of second welding point positions, sequentially performing welding on the plurality of first welding point positions along a first direction, sequentially performing welding on the plurality of second welding point positions along a second direction, and reversing the first direction and the second direction.
7. The battery packaging method according to claim 5, wherein the step of performing cross space welding on the first long side and the second long side comprises:
a plurality of third welding point positions are uniformly distributed on the first long edge at intervals;
a plurality of fourth welding point positions are uniformly distributed on the second long edge at intervals;
and performing cross welding on a plurality of third welding point positions and a plurality of fourth welding point positions, sequentially performing welding on the plurality of third welding point positions along a third direction, sequentially performing welding on the plurality of fourth welding point positions along a fourth direction, and enabling the third direction and the fourth direction to be opposite.
8. A battery packaging system is applied to a battery shell, the battery shell comprises a cover plate and a box body, and the battery packaging system comprises:
the gluing device is used for gluing one side of the cover plate to form a colloidal layer;
the covering device is used for covering one side of the cover plate where the colloidal layer is located on the box body so as to enable the colloidal layer to be in contact with the box body;
and the welding device is used for performing laser welding at intervals on the contact track of the cover plate and the box body so as to fill the gap between the cover plate and the box body after the colloidal layer is heated and melted.
9. The battery packaging system of claim 8, further comprising:
and the positioning device is used for positioning and clamping the cover plate and the box body which are covered together.
10. A battery obtained by the battery packaging method according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210149700.1A CN114551966A (en) | 2022-02-18 | 2022-02-18 | Battery packaging method and system and battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210149700.1A CN114551966A (en) | 2022-02-18 | 2022-02-18 | Battery packaging method and system and battery |
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| CN114551966A true CN114551966A (en) | 2022-05-27 |
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| CN202210149700.1A Pending CN114551966A (en) | 2022-02-18 | 2022-02-18 | Battery packaging method and system and battery |
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| JPH09181440A (en) * | 1995-12-26 | 1997-07-11 | Matsushita Electric Ind Co Ltd | Soldered component removing method and apparatus |
| DE102011109591A1 (en) * | 2011-08-05 | 2013-02-07 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Joining two workpieces e.g. steel sheets by laser beam welding, comprises forming gap between two workpieces for escape of welding emissions, and applying viscous additive material to one of the two workpieces for formation of gaps |
| CN208873772U (en) * | 2018-09-05 | 2019-05-17 | 浙江衡远新能源科技有限公司 | A kind of secondary battery construction |
| CN111604594A (en) * | 2020-05-27 | 2020-09-01 | 湖北亿纬动力有限公司 | Welding process of battery cover plate and battery |
| CN212034607U (en) * | 2020-01-22 | 2020-11-27 | 潍坊佩特来电器有限公司 | Box body with cooling water channel structure and motor controller applying same |
-
2022
- 2022-02-18 CN CN202210149700.1A patent/CN114551966A/en active Pending
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| US4841706A (en) * | 1987-11-18 | 1989-06-27 | Carlisle Corporation | Non-penetrating fastener for affixing elastomeric sheeting to a roof |
| JPH09181440A (en) * | 1995-12-26 | 1997-07-11 | Matsushita Electric Ind Co Ltd | Soldered component removing method and apparatus |
| DE102011109591A1 (en) * | 2011-08-05 | 2013-02-07 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Joining two workpieces e.g. steel sheets by laser beam welding, comprises forming gap between two workpieces for escape of welding emissions, and applying viscous additive material to one of the two workpieces for formation of gaps |
| CN208873772U (en) * | 2018-09-05 | 2019-05-17 | 浙江衡远新能源科技有限公司 | A kind of secondary battery construction |
| CN212034607U (en) * | 2020-01-22 | 2020-11-27 | 潍坊佩特来电器有限公司 | Box body with cooling water channel structure and motor controller applying same |
| CN111604594A (en) * | 2020-05-27 | 2020-09-01 | 湖北亿纬动力有限公司 | Welding process of battery cover plate and battery |
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