CN115036553B - Battery cell packaging and shaping device and shaping method - Google Patents
Battery cell packaging and shaping device and shaping method Download PDFInfo
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- CN115036553B CN115036553B CN202210966626.2A CN202210966626A CN115036553B CN 115036553 B CN115036553 B CN 115036553B CN 202210966626 A CN202210966626 A CN 202210966626A CN 115036553 B CN115036553 B CN 115036553B
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- 238000007493 shaping process Methods 0.000 title claims abstract description 201
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000004806 packaging method and process Methods 0.000 title abstract description 13
- 238000013459 approach Methods 0.000 claims abstract description 27
- 239000004033 plastic Substances 0.000 claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 8
- 230000005489 elastic deformation Effects 0.000 claims abstract description 6
- 239000012528 membrane Substances 0.000 claims abstract description 5
- 238000003825 pressing Methods 0.000 claims description 42
- 239000002985 plastic film Substances 0.000 claims description 19
- 229920006255 plastic film Polymers 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000005538 encapsulation Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000005012 migration Effects 0.000 claims description 4
- 238000013508 migration Methods 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 238000007731 hot pressing Methods 0.000 abstract description 8
- 238000001125 extrusion Methods 0.000 abstract description 2
- 210000004027 cell Anatomy 0.000 description 56
- 239000006260 foam Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 210000005056 cell body Anatomy 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- 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
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- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention provides a battery cell packaging and shaping device and a shaping method, which comprise a first shaping part and a second shaping part; the first shaping part and the second shaping part have elastic deformation capacity, the parts of the reserved section, which are in contact with the first shaping part and the second shaping part, are respectively a first reserved part and a second reserved part, and the second shaping part can move towards the first shaping part and approach the first shaping part, so that the first shaping part and the second shaping part are elastically deformed at the same time, and the first reserved part and the second reserved part are extruded by the first shaping part and the second shaping part respectively and approach the lug at the same time; carry out hot pressing extrusion to the reservation section of electric core through the hot pressing mode to the upper and lower both sides of reserving the section are buckled to utmost point ear direction and are approached to final mutual butt can not lead to the fact under the condition of damage to electric core and reservation section, and guarantee to reserve out sufficient plastic-aluminum membrane to the diaphragm apart from the basis on, shortened the length that surpasss electric core by a wide margin through the plastic.
Description
Technical Field
The invention relates to the technical field of battery cell encapsulation, in particular to a battery cell encapsulation shaping device and a shaping method.
Background
The soft-packaged battery cell has the advantages of simple structure, high weight energy density, low cost and the like, and is low in packaging process difficulty and suitable for industrial mass production. Patent document CN201810034285.9 discloses a device and a method for packaging a battery cell in a shell at present.
However, the packaging strength of the soft-package battery cell is affected by the packaging strength of the aluminum plastic film. One of the factors having a great influence is that the isolation film at the head of the battery cell enters the seal at the edge of the packaging shell, so that the packaging strength is weakened. In order to avoid such situations during the design of the battery cell, the distance from the aluminum plastic film to the diaphragm can be reserved sufficiently, and the larger the reserved distance of the section is, the larger the energy density loss of the battery cell is.
In view of this, it is actually necessary to shape the battery cell before the battery cell is packaged in the case, so that the length of the aluminum-plastic film exceeding the battery cell is as short as possible while ensuring that a sufficient distance from the aluminum-plastic film to the diaphragm is reserved, thereby meeting the optimal requirement when the battery cell is packaged in the case.
Disclosure of Invention
In view of the above, the invention provides a cell packaging and shaping device and a shaping method, which are used for solving the problem that the energy density loss of a cell is large due to the fact that an aluminum-plastic film reserved in the current cell design is wide, and therefore the cell needs to be packaged in a shell after being shaped.
The technical scheme of the invention is realized as follows: the invention provides a cell packaging and shaping device, which is used for shaping an aluminum-plastic film wrapped outside a cell, wherein one end of the cell is provided with a tab, and a reserved section is formed by the aluminum-plastic film towards the part of the tab, which exceeds the cell, and comprises a first shaping part and a second shaping part; the first shaping part and the second shaping part both have elastic deformation capacity, and the battery core is clamped between the first shaping part and the second shaping part and abuts against the reserved section; the parts of the reserved section, which are in contact with the first reshaping part and the second reshaping part are a first reserved part and a second reserved part respectively, and the tab is positioned between the first reserved part and the second reserved part; the second shaping part can move towards the first shaping part and approach the first shaping part, so that the first shaping part and the second shaping part are elastically deformed at the same time, and the first reserved part and the second reserved part are extruded by the first shaping part and the second shaping part respectively and approach the lug at the same time.
On the basis of the technical scheme, the device preferably further comprises a working face and a movable block; a first shaping part is horizontally arranged on the working face, a battery core is horizontally arranged on the first shaping part, and the first reserved part is in contact with the first shaping part; the movable block is arranged right above the first shaping part, a second shaping part is arranged on the end face, facing the first shaping part, of the movable block, and the movable block can move relative to the working face along the direction of the plumb line and enable the second shaping part to be close to the first shaping part.
More preferably, the movable block comprises a first pressing block and a second pressing block; first briquetting and second briquetting rigid coupling, first briquetting and second briquetting are the hot pressing piece that has self-heating function, and the terminal surface that first briquetting was provided with second plastic portion flushes with the terminal surface that the second briquetting was provided with second plastic portion mutually, and first briquetting and second briquetting can be for the operation face along plumb line direction synchronous motion to make first briquetting press on electric core, and make the second briquetting press on second reservation portion.
Even more preferably, the self-heating temperature of the first compact is less than the self-heating temperature of the second compact.
Still further preferred, still include spacing portion, spacing portion sets up the one end that has the utmost point ear at electric core, and spacing portion can restrict the position of utmost point ear at the operation face to the part that makes the plastic-aluminum membrane parcel live electric core and reserve section and be connected aligns with the rigid coupling position of first briquetting and second briquetting.
Still further preferred, still include location portion, location portion sets up the one end of keeping away from utmost point ear at electric core, and location portion can be for operation face horizontal migration, and location portion can move and support and hold the tip of keeping away from utmost point ear at electric core towards spacing portion direction, and location portion can promote electric core to move on first plastic portion until utmost point ear reaches the limit position of spacing portion.
Further preferably, the length of the first pressing block in the moving direction of the positioning part is the same as the length of the battery cell in the moving direction of the positioning part; when the lug reaches the limiting position of the limiting part, the positioning part is contacted with one end, far away from the second pressing block, of the first pressing block.
On the other hand, the invention also provides a battery cell packaging and shaping method, which adopts the shaping device and comprises the following steps,
step one, arranging the battery cell on the first shaping part, and enabling the lug to be positioned under the second pressing block;
after the first pressing block and the second pressing block self-heat and reach a preset temperature, the movable block drives the second shaping part to approach the first shaping part along the plumb line direction, and the battery cell is clamped between the first shaping part and the second shaping part, and the first shaping part and the second shaping part are correspondingly and closely attached to the first reserved part and the second reserved part one by one;
and step three, driving the movable block to continuously approach the working face, enabling the second shaping part to approach the first shaping part, enabling the first shaping part and the second shaping part to simultaneously generate elastic deformation, enabling the first reserved part and the second reserved part to be extruded by the first shaping part and the second shaping part respectively and simultaneously approach the lug, and finishing the shaping of the battery cell.
On the basis of the above technical scheme, preferably, in step one, after setting up electric core on first plastic portion, drive location portion towards spacing portion horizontal migration, make location portion support and hold and promote electric core and move on first plastic portion, until making utmost point ear reach the limiting position of spacing portion, utmost point ear is located the second briquetting under this moment.
On the basis of the above technical solution, preferably, in the third step, the first reserved portion and the second reserved portion are respectively extruded by the first shaping portion and the second shaping portion to simultaneously approach the tab, and the movable block is driven to continuously approach the working surface until the first reserved portion and the second reserved portion simultaneously abut against the tab and the first reserved portion and the second reserved portion abut against each other, so that the cell shaping is completed.
Compared with the prior art, the battery cell packaging and shaping device and the shaping method have the following beneficial effects:
according to the invention, the reserved section of the battery cell is subjected to hot-pressing extrusion in a hot-pressing manner, the upper side and the lower side of the reserved section are bent towards the pole ear direction and are abutted against each other finally, under the condition that the battery cell and the reserved section cannot be damaged, and on the basis of ensuring that enough distance from the aluminum-plastic film to the diaphragm is reserved, the length of the aluminum-plastic film exceeding the battery cell is greatly shortened through shaping, so that the problem of large energy density loss of the battery cell is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a shaping device in step one of the shaping method of the present invention;
FIG. 2 is a schematic diagram of a shaping apparatus in step two of the shaping method of the present invention;
FIG. 3 is a schematic diagram of a shaping apparatus in a state of partial shaping in place in step three of the shaping method according to the present invention;
FIG. 4 is a schematic diagram of the shaping apparatus in a state of complete shaping in place in the third step of the shaping method according to the present invention;
FIG. 5 is a schematic view of a reforming device of the present invention;
fig. 6 is a schematic diagram of an unshaped state of a cell reserved section according to the present invention;
fig. 7 is a schematic diagram of a state in which the cell reserve segment is completely shaped in place according to the present invention.
In the figure: 1. a first shaping unit; 2. a second shaping unit; 3. a first reserved portion; 4. a second reserved portion; 5. a working surface; 6. a movable block; 61. a first pressing block; 62. a second pressing block; 7. a limiting part; 8. a positioning part.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1, the device for shaping a cell package of the present invention is used for shaping an aluminum-plastic film wrapped outside a cell, and includes a first shaping portion 1 and a second shaping portion 2.
The battery cell is a soft-packaged battery cell, one end of the battery cell is provided with a tab, an aluminum-plastic film is wrapped outside the battery cell, a reserved section is formed by the aluminum-plastic film facing the tab and exceeding the battery cell, and the parts of the reserved section, which are in contact with the first shaping part 1 and the second shaping part 2, are a first reserved part 3 and a second reserved part 4 respectively; at this time, the tab is located between the first reserved portion 3 and the second reserved portion 4. It should be noted that, the two sides of the first shaping part 1 and the second shaping part 2 are also connected with the aluminum-plastic film, and the aluminum-plastic film connected to the two sides of the first shaping part 1 and the second shaping part 2 is deformed along with the shaping of the first shaping part 1 and the second shaping part 2, but this does not affect the purpose of the present disclosure, and therefore, the description thereof is not given.
The first shaping part 1 and the second shaping part 2 are generally foam sponges, so that the first shaping part 1 and the second shaping part 2 both have elastic deformation capacity, and the battery cell is clamped between the first shaping part 1 and the second shaping part 2 and abuts against the reserved section.
The second shaping part 2 can move towards the first shaping part 1 and approach the first shaping part 1, so that the first shaping part 1 and the second shaping part 2 are elastically deformed at the same time, and the first reserved part 3 and the second reserved part 4 are extruded by the first shaping part 1 and the second shaping part 2 respectively and approach the lug at the same time.
In fact, the principle of the present invention, in brief, is to press the reserved sections up and down to bend the first reserved portion 3 and the second reserved portion 4 inwards along the portions where the first reserved portion 3 and the second reserved portion 4 are connected with the portion of the aluminum-plastic film wrapping the electric core, so that the first reserved portion 3 and the second reserved portion 4 abut against the tab and the first reserved portion 3 and the second reserved portion 4 abut against each other, and it can be known from the trigonometric function that when the first reserved portion 3 and the second reserved portion 4 exceed the electric core towards the tab, the length of the portion of the tab that the first reserved portion 3 and the second reserved portion 4 exceed the electric core is fixed, so that the distance between the edge of the tab and the electric core that the two are far away from the electric core is shortened, thereby achieving the length that the aluminum-plastic film exceeds the electric core is shortened.
Specifically, referring to fig. 5, fig. 6 and fig. 7, wherein h is the thickness of the foam of the first shaping portion 1 and the second shaping portion 2, l is the length of the foam exceeding the cell body, d is the thickness of the cell body (the thickness is negligible because the aluminum-plastic film is very thin), and X is SA The length of the reserved section in an unshaped state; the upper and lower foams are consistent, so that the bending angle of the first reserved part 3 and the second reserved part 4 is alpha after the first reserved part 3 and the second reserved part 4 are deformed by default, and the length of a reserved section for finishing shaping is y after the first reserved part 3 and the second reserved part 4 are deformed.
For convenience of calculation, the thickness of the compressed foam at the preset electric core main body is approximately 0, and the volumes of the foam of the first shaping part 1 and the second shaping part 2 at the preset reserved section position are default and unchanged, so that the cross-sectional area of the foam compressed and deformed by the first shaping part 1 or the second shaping part 2 is the same as the cross-sectional area of the rectangular foam when the foam is not compressed and deformed.
By calculation it can be found that:
after the first reserved part 3 and the second reserved part 4 are deformed, in order to calculate the maximum length y of the reserved segment after shaping, the maximum length y can be obtained through a trigonometric function relationship:
the mutual substitution of the two formulas can obtain:
the conventional cell design needs to keep the diaphragm not less than 4mm, so as to prevent the diaphragm at the end part of the cell from entering the seal, and the safe design distance can be reduced by about 2mm by using the shaping method of the invention. For conventional consumer cell designs, the present method can boost the energy density by at least 5%.
The second embodiment:
in the first embodiment, the working surface 5 and the movable block 6 are further included when the concrete implementation is performed.
Wherein, the level sets up first plastic portion 1 on the working face 5, and the tie sets up the electric core and makes first reservation 3 and first plastic portion 1 contact on the first plastic portion 1 of lying on 1.
The movable block 6 is provided directly above the first shaping portion 1, the second shaping portion 2 is provided on an end surface of the movable block 6 facing the first shaping portion 1, and the movable block 6 is movable in the vertical line direction with respect to the working surface 5 to bring the second shaping portion 2 close to the first shaping portion 1. The pressure of the movable block 6 is generally 90-120 kgf, and the dwell time is 1-3s. The movable block 6 is driven to press down by conventional means, which will not be described herein.
Specifically, the movable block 6 includes a first pressing block 61 and a second pressing block 62.
Wherein, first briquetting 61 and second briquetting 62 rigid coupling, first briquetting 61 and second briquetting 62 are the hot pressing piece that has self-heating function, just can make the first reservation portion 3 and the second reservation portion 4 of plastic-aluminum membrane material take place buckling deformation through the hot pressing of hot pressing piece. The first and second compacts 61 and 62 may be self-heated by providing heating wires therein, or may be self-heated by other conventional means, and since the present invention does not relate to an improvement of the self-heating method of the first and second compacts 61 and 62, the structures and self-heating principle thereof will not be described in detail.
The end face of the first pressing block 61 provided with the second shaping part 2 is flush with the end face of the second pressing block 62 provided with the second shaping part 2, the first pressing block 61 and the second pressing block 62 can move synchronously along the plumb line direction relative to the working face 5, the first pressing block 61 is pressed on the battery cell, and the second pressing block 62 is pressed on the second reserved part 4.
It should be noted that the self-heating temperature of first compact 61 is less than the self-heating temperature of second compact 62; wherein, the temperature of the first pressing block 61 is generally 60-90 degrees, and the temperature of the first pressing block 61 is generally 90-120 degrees. In order to avoid the mutual influence of the temperatures of the first pressing block 61 and the second pressing block 62, a heat insulating layer is arranged at the fixed part of the two pressing blocks.
Example three:
on the basis of the second embodiment, in order to align the part where the part of the aluminum-plastic film wrapping the battery core and the reserved section are connected with the fixed connection part of the first pressing block 61 and the second pressing block 62, the embodiment further comprises a limiting part 7 and a positioning part 8.
The limiting part 7 is arranged at one end of the battery cell with the lug, and the limiting part 7 can limit the position of the lug on the operation surface 5. It should be noted that, although in the present application, the tab abuts against the limiting portion 7 to achieve positioning of the battery cell and the tab, in actual implementation, if the above measures are adopted, the tab may be damaged, and therefore in actual implementation, the laser detection unit is arranged at the tab end of the battery cell, and when the tab reaches the preset position, the laser detection unit detects the tab, thereby achieving positioning.
Example four:
on the basis of the third embodiment, as an optional embodiment, the length of the first pressing block 61 in the moving direction of the positioning portion 8 is the same as the length of the battery cell in the moving direction of the positioning portion 8.
Therefore, when the tab reaches the limit position of the limit portion 7, the positioning portion 8 contacts one end of the first pressing piece 61 away from the second pressing piece 62, and accurate positioning can be achieved.
Example five:
a shaping method for packaging a battery cell adopts the shaping device of any one of the first embodiment to the fourth embodiment, and comprises the following steps.
As shown in fig. 1, in the first step, after the battery cell is disposed on the first shaping portion 1, the positioning portion 8 is driven to horizontally move toward the limiting portion 7, so that the positioning portion 8 abuts against and pushes the battery cell to move on the first shaping portion 1 until the tab reaches the limiting position of the limiting portion 7, and at this time, the tab is located right below the second pressing block 62.
As shown in fig. 2, in the second step, after the first pressing block 61 and the second pressing block 62 self-heat and reach the preset temperature, the movable block 6 drives the second shaping portion 2 to approach the first shaping portion 1 along the direction of the plumb line, and the battery cell is sandwiched between the first shaping portion 1 and the second shaping portion 2, and the first shaping portion 1 and the second shaping portion 2 are tightly attached to the first reserved portion 3 and the second reserved portion 4 in a one-to-one correspondence manner.
As shown in fig. 3, in the third step, the movable block 6 is driven to continuously approach the working surface 5, so that the second shaping portion 2 approaches the first shaping portion 1, the first shaping portion 1 and the second shaping portion 2 are elastically deformed at the same time, and the first reserved portion 3 and the second reserved portion 4 are extruded by the first shaping portion 1 and the second shaping portion 2 respectively and approach the tab at the same time, thereby completing the shaping of the battery cell. At this time, the first and second shaping portions 1 and 2 are pressed to form a trapezoidal head.
Example six:
in the fifth embodiment, the first shaping part 1 and the second shaping part 2 are extruded to form a trapezoidal head, and the shaping is not in place actually, so as shown in fig. 4, in the third step, the first reserved part 3 and the second reserved part 4 are extruded by the first shaping part 1 and the second shaping part 2 respectively and simultaneously approach the tab, the movable block 6 is driven to continue to approach the working surface 5 until the first reserved part 3 and the second reserved part 4 simultaneously abut on the tab and the first reserved part 3 and the second reserved part 4 abut on each other, the cell shaping is completed, and the first shaping part 1 and the second shaping part 2 are shaped completely to form a triangular head.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides an electricity core encapsulation shaping device for plastic to the plastic-aluminum membrane of electric core outer parcel, electric core one end has utmost point ear, and the plastic-aluminum membrane surpasses the part formation reservation section of electric core, its characterized in that towards utmost point ear: comprises a first shaping part (1) and a second shaping part (2);
the first shaping part (1) and the second shaping part (2) both have elastic deformation capacity, and the battery cell is clamped between the first shaping part (1) and the second shaping part (2) and abuts against the reserved section;
the parts of the reserved section, which are in contact with the first shaping part (1) and the second shaping part (2), are a first reserved part (3) and a second reserved part (4), respectively, and the lug is positioned between the first reserved part (3) and the second reserved part (4);
the second shaping part (2) can move towards the first shaping part (1) and approach the first shaping part (1), so that the first shaping part (1) and the second shaping part (2) are elastically deformed at the same time, and the first reserved part (3) and the second reserved part (4) are extruded by the first shaping part (1) and the second shaping part (2) respectively and approach the lug at the same time.
2. The cell package shaping device of claim 1, wherein: the device also comprises a working surface (5) and a movable block (6);
a first shaping part (1) is horizontally arranged on the working surface (5), a battery core is horizontally arranged on the first shaping part (1) and the first reserved part (3) is in contact with the first shaping part (1);
the movable block (6) is arranged right above the first shaping part (1), a second shaping part (2) is arranged on the end face, facing the first shaping part (1), of the movable block (6), and the movable block (6) can move relative to the working face (5) along the plumb line direction and enables the second shaping part (2) to approach the first shaping part (1).
3. The cell package shaping device of claim 2, wherein: the movable block (6) comprises a first pressing block (61) and a second pressing block (62); first briquetting (61) and second briquetting (62) rigid coupling, first briquetting (61) and second briquetting (62) are the hot briquetting that has self-heating function, first briquetting (61) are provided with the terminal surface of second plastic portion (2) and the terminal surface that second briquetting (62) are provided with second plastic portion (2) and flush mutually, first briquetting (61) and second briquetting (62) can be for operation face (5) along plumb line direction synchronous motion, and make first briquetting (61) press on electric core, and make second briquetting (62) press on second reservation portion (4).
4. The cell package shaping device of claim 3, wherein: the self-heating temperature of the first pressure block (61) is less than the self-heating temperature of the second pressure block (62).
5. The cell package shaping device of claim 3, wherein: the electric core fixing device is characterized by further comprising a limiting part (7), wherein the limiting part (7) is arranged at one end, provided with a lug, of the electric core, the limiting part (7) can limit the position of the lug on the operation surface (5), and the part, connected with the reserved section, of the electric core wrapped by the aluminum plastic film is aligned with the fixedly connected part of the first pressing block (61) and the second pressing block (62).
6. The cell encapsulation shaping device of claim 5, wherein: still include location portion (8), location portion (8) set up the one end of keeping away from utmost point ear at electric core, location portion (8) can be for operation face (5) horizontal migration, location portion (8) can move and support and hold the tip of keeping away from utmost point ear at electric core towards spacing portion (7) direction, location portion (8) can promote electric core and move on first plastic portion (1) until utmost point ear reaches the limit position of spacing portion (7).
7. The cell encapsulation shaping device of claim 6, wherein: the length of the first pressing block (61) in the moving direction of the positioning part (8) is the same as the length of the battery cell in the moving direction of the positioning part (8); when the tab reaches the limiting position of the limiting part (7), the positioning part (8) contacts one end, away from the second pressing block (62), of the first pressing block (61).
8. A method for shaping a battery package, which uses the shaping device of claim 6 or 7, and is characterized in that: comprises the following steps of (a) carrying out,
step one, arranging a battery cell on a first shaping part (1), and enabling a lug to be positioned under a second pressing block (62);
step two, after the first pressing block (61) and the second pressing block (62) self-heat and reach a preset temperature, the movable block (6) drives the second shaping part (2) to approach the first shaping part (1) along the plumb line direction, and the battery cell is clamped between the first shaping part (1) and the second shaping part (2), and the first shaping part (1) and the second shaping part (2) are correspondingly tightly attached to the first reserved part (3) and the second reserved part (4) one by one;
and step three, driving the movable block (6) to continuously approach the working face (5), enabling the second shaping part (2) to approach the first shaping part (1), enabling the first shaping part (1) and the second shaping part (2) to simultaneously generate elastic deformation, enabling the first reserved part (3) and the second reserved part (4) to respectively be extruded by the first shaping part (1) and the second shaping part (2) and simultaneously approach the lug, and finishing the shaping of the battery cell.
9. The cell package shaping method according to claim 8, wherein: in the first step, after the battery cell is arranged on the first shaping part (1), the positioning part (8) is driven to horizontally move towards the limiting part (7), the positioning part (8) is abutted against and pushes the battery cell to move on the first shaping part (1) until the lug reaches the limiting position of the limiting part (7), and the lug is located under the second pressing block (62).
10. The cell package shaping method according to claim 8, wherein: in the third step, the first reserved part (3) and the second reserved part (4) are extruded by the first shaping part (1) and the second shaping part (2) respectively to simultaneously approach the lug, the movable block (6) is driven to continuously approach the working surface (5) until the first reserved part (3) and the second reserved part (4) simultaneously abut against the lug and the first reserved part (3) and the second reserved part (4) abut against each other, and the cell shaping is completed.
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| JP2012113843A (en) * | 2010-11-19 | 2012-06-14 | Sony Corp | Battery, method for manufacturing the same, battery unit, and battery module |
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| CN209709116U (en) * | 2019-01-29 | 2019-11-29 | 东莞塔菲尔新能源科技有限公司 | A kind of apparatus for shaping of the naked battery core of battery |
| CN212917096U (en) * | 2020-06-17 | 2021-04-09 | 广东拓斯达科技股份有限公司 | Battery cell back step shaping device |
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- 2022-08-12 CN CN202210966626.2A patent/CN115036553B/en active Active
Patent Citations (5)
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| JP2012113843A (en) * | 2010-11-19 | 2012-06-14 | Sony Corp | Battery, method for manufacturing the same, battery unit, and battery module |
| CN207624737U (en) * | 2017-11-20 | 2018-07-17 | 惠州市至元智能装备有限公司 | Apparatus for shaping based on package system of battery core |
| CN209094238U (en) * | 2018-09-30 | 2019-07-12 | 惠州市超聚电池有限公司 | Edge equipment is scalded in a kind of both ends shaping of Soft Roll cylindrical lithium ion battery |
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