CN215451562U - Battery cell packaging structure and battery with same - Google Patents
Battery cell packaging structure and battery with same Download PDFInfo
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- CN215451562U CN215451562U CN202121465964.5U CN202121465964U CN215451562U CN 215451562 U CN215451562 U CN 215451562U CN 202121465964 U CN202121465964 U CN 202121465964U CN 215451562 U CN215451562 U CN 215451562U
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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
- 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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Abstract
The utility model discloses a battery cell packaging structure and a battery with the same, and the battery cell packaging structure comprises: a main body portion; the first folding edge and the second folding edge are connected to two opposite sides of the main body part and are bent relative to the main body part; the third folding edge is connected with the main body part and is bent relative to the main body part, and the third folding edge is connected between the first folding edge and the second folding edge; the first folding lug is connected with the first folding edge and the third folding edge, the second folding lug is connected with the second folding edge and the third folding edge, and the first folding lug and the second folding lug are positioned on one side of the third folding edge, which is back to the main body part; the main body part, the first folding edge, the second folding edge, the third folding edge, the first folding ear and the second folding ear are integrated. The battery cell packaging structure provided by the embodiment of the utility model has the advantages of sufficient installation space, tight fit with the battery cell, no damage to the battery cell and the like.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a battery cell packaging structure and a battery with the same.
Background
The battery in the related art generally comprises a battery cell and a battery cell packaging structure, the battery cell packaging structure is attached to the partial surface of the battery cell by setting a folding edge, so that the sealing effect of the battery cell is improved, the resistance effect of the battery cell to collision and falling is improved, the damage condition of leakage and the like of the battery cell is avoided, however, a partial non-folding edge area can appear when the battery cell packaging structure packages the battery cell, the non-folding edge area is arranged between the folding edge and the battery cell, the battery cell can be damaged due to the fact that the top end of the non-folding edge area is sharp, and the non-folding edge area occupies the space of the battery cell packaging structure for arranging the battery cell and the volume of the influenced battery cell. In addition, the non-flanging area can apply force far away from the battery cell to the flanging, so that the protection effect of the flanging on the battery cell is influenced.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a cell packaging structure, which has the advantages of sufficient installation space, tight adhesion with a cell, and no damage to the cell.
The utility model also provides a battery with the battery cell packaging structure.
In order to achieve the above object, an embodiment according to a first aspect of the present invention provides a cell packaging structure, including: a main body portion; the first folded edge and the second folded edge are connected to two opposite sides of the main body part, and the first folded edge and the second folded edge are bent towards one side of the main body part in the thickness direction relative to the main body part; a third folded edge that is connected to the main body portion and is folded toward the one side of the main body portion in the thickness direction with respect to the main body portion, the third folded edge being connected between the first folded edge and the second folded edge; a first folding lug and a second folding lug, wherein the first folding lug is connected between the first folding edge and the third folding edge, the second folding lug is connected between the second folding edge and the third folding edge, and the first folding lug and the second folding lug are positioned on one side of the third folding edge, which is opposite to the first folding edge and the second folding edge; the main body part, the first folded edge, the second folded edge, the third folded edge, the first folded lug and the second folded lug are integrated.
The battery cell packaging structure provided by the embodiment of the utility model has the advantages of sufficient installation space, tight fit with the battery cell, no damage to the battery cell and the like.
According to some embodiments of the utility model, the first and second flaps are parallel and arranged perpendicular to the main body portion; the third folded edge is perpendicular to the main body portion, the first folded edge, and the second folded edge.
According to some embodiments of the utility model, the first folding lug is bent towards the second folding edge relative to the first folding edge and attached to a side of the third folding edge facing away from the first folding edge and the second folding edge, and the second folding lug is bent towards the first folding edge relative to the second folding edge and attached to a side of the third folding edge facing away from the first folding edge and the second folding edge.
According to some embodiments of the utility model, the first and second folding ears are located in the same plane, and the first and second folding ears are both parallel to the third folding edge.
According to some embodiments of the utility model, the first folding lug is arranged parallel to the first folding edge, and the second folding lug is arranged parallel to the second folding edge.
According to some embodiments of the utility model, the first folding lug comprises a first connecting section, a second connecting section and a first transition section, the first connecting section and the second connecting section are arranged in parallel, the first connecting section is connected to the first folding edge, the second connecting section is connected to the third folding edge, and the first transition section is respectively connected with the first connecting section and the second connecting section; the second folded lug comprises a third connecting section, a fourth connecting section and a second transition section, the third connecting section and the fourth connecting section are arranged in parallel, the third connecting section is connected to the second folded edge, the fourth connecting section is connected to the third folded edge, and the second transition section is respectively connected with the third connecting section and the fourth connecting section; the first connecting section, the second connecting section, the third connecting section and the fourth connecting section are all triangular.
According to a second aspect of the present invention, there is provided a battery, including: an electric core; according to the battery cell packaging structure in the embodiment of the first aspect of the present invention, the main body portion, the first folded edge, the second folded edge, and the third folded edge are all attached to the battery cell, and the first folded lug and the second folded lug are located on a side of the third folded edge, which faces away from the battery cell.
According to the battery of the second aspect of the utility model, by using the cell packaging structure of the first aspect of the utility model, the advantages of high capacity density, long service life, close fitting and the like are achieved.
According to some embodiments of the utility model, the battery further comprises: the circuit board is arranged on one side, back to the battery cell, of the third folded edge and located between the first folded lug and the second folded lug, and the thickness of the circuit board is larger than the height of the first folded lug and the height of the second folded lug.
According to some embodiments of the utility model, a connection glue is arranged between the circuit board and the third folding edge, and the connection glue wraps the first folding lug and the second folding lug.
According to some embodiments of the utility model, a tab is connected to the battery cell, and the tab extends from the battery cell to a side of the battery cell opposite to the main body portion and protrudes out of the battery cell packaging structure.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic diagram of a cell packaging structure and a cell assembly according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of assembling of a cell packaging structure and another view angle of a cell according to an embodiment of the present invention.
Fig. 3 is a further view-angle assembly diagram of a cell packaging structure and a cell according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of the cell packaging structure and the assembly of the battery cell according to another embodiment of the present invention.
Reference numerals:
a cell packaging structure 1, a cell 2, a tab 3,
A main body part 100, a first edge 110, a third edge 130,
A first flap 200, a second flap 300, a third flap 400, a first tab 500, a first connecting segment 510, a second connecting segment 520, a first transition segment 530, a second tab 600, a third connecting segment 610, a fourth connecting segment 620, and a second transition segment 630.
Detailed Description
Embodiments of the present invention will be described in detail below, the embodiments described with reference to the drawings being illustrative, and the embodiments of the present invention will be described in detail below.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.
In the description of the present invention, "a plurality" means two or more.
A battery according to an embodiment of the present invention, which includes a cell 2 and a cell encapsulation structure 1 of the following embodiment of the present invention, is described first with reference to the drawings.
As shown in fig. 1 to 4, the main body 100, the first folded edge 200, the second folded edge 300, and the third folded edge 400 are all attached to the battery cell 2, and the first folded lug 500 and the second folded lug 600 are located on a side of the third folded edge 400, which faces away from the battery cell 2.
A cell encapsulation structure 1 according to an embodiment of the present invention is described below with reference to the drawings.
As shown in fig. 1 to 4, the cell packaging structure 1 includes a main body portion 100, a first folding edge 200, a second folding edge 300, a third folding edge 400, a first folding ear 500, and a second folding ear 600.
The first folding edge 200 and the second folding edge 300 are connected to two opposite sides of the main body portion 100, the first folding edge 200 and the second folding edge 300 are bent towards one side of the main body portion 100 in the thickness direction relative to the main body portion 100, the third folding edge 400 is connected to the main body portion 100 and is bent towards one side of the main body portion 100 in the thickness direction relative to the main body portion 100, the third folding edge 400 is connected between the first folding edge 200 and the second folding edge 300, the first folding lug 500 is connected between the first folding edge 200 and the third folding edge 400, the second folding lug 600 is connected between the second folding edge 300 and the third folding edge 400, and the first folding lug 500 and the second folding lug 600 are located on one side of the third folding edge 400, which is back to the first folding edge 200 and the second folding edge 300. The main body 100, the first flange 200, the second flange 300, the third flange 400, the first tab 500, and the second tab 600 are integrated.
For example, the main body 100 has a first edge 110, a second edge (not shown, refer to the first edge 110), and a third edge 130, the first edge 110 and the second edge are disposed opposite to each other, the third edge 130 is connected between the first edge 110 and the second edge, the first flap 200 is connected to the first edge 110, the second flap 300 is connected to the second edge, and the third flap 400 is connected to the third edge 130. The main body 100 may be rectangular, and the first edge 110, the second edge, and the third edge 130 are three edges of the rectangle. The body portion 100, the first flap 200, the second flap 300, the third flap 400, the first tab 500, and the second tab 600 collectively form a portion of a foldable rectangular structure.
The packaging process of the battery cell 2 is described by way of example with reference to the accompanying drawings;
firstly, placing a battery cell 2 in a battery cell packaging structure 1;
then, the first flange 200 and the second flange 300 are folded toward the battery cell 2 with respect to the main body portion 100, so that the first flange 200 and the second flange 300 are attached to opposite side surfaces of the battery cell 2 in the first direction (the direction indicated by the arrow a in fig. 1 to 4);
next, the third folded edge 400 is folded with respect to the body portion 100 in the direction of the battery cell 2, so that the third folded edge 400 is attached to the surface of the battery cell 2 having the tab 3 in the second direction (the direction indicated by the arrow B in fig. 1-4), at this time, due to the folding of the first folded edge 200, the second folded edge 300, and the third folded edge 400, the cell packaging structure 1 forms the first folded edge 500 in the region between the first folded edge 200 and the third folded edge 400, and the second folded edge 600 is formed in the region between the second folded edge 300 and the third folded edge 400.
The first and second directions may be perpendicular to each other.
According to the cell packaging structure 1 of the embodiment of the utility model, the first folded edge 200 and the second folded edge 300 are bent towards one side of the main body part 100 in the thickness direction relative to the main body part 100, the third folded edge 400 is connected to the main body part 100 and is bent towards one side of the main body part 100 in the thickness direction relative to the main body part 100, and the main body part 100, the first folded edge 200, the second folded edge 300 and the third folded edge 400 are all attached to the cell 2, so that the cell packaging structure 1 can protect the cell 2, improve the sealing effect of the cell 2, and reduce the liquid leakage probability of the cell 2 and prolong the service life of the cell 2 when the cell 2 is collided and falls.
In addition, the main body portion 100, the first folded edge 200, the second folded edge 300, the third folded edge 400, the first folded lug 500 and the second folded lug 600 are an integral piece, so that the structural strength of the battery cell packaging structure 1 is higher, and the sealing effect and the collision resistance of the battery cell 2 can be further improved without arranging other connecting structures.
In addition, the first tab 500 and the second tab 600 are disposed on a side of the third fold 400 facing away from the first fold 200 and the second fold 300. Thus, on one hand, compared with a battery in which a tab is placed between the battery cell and the third folded edge in the related art, the battery cell 2 in the embodiment of the present invention may extend to the third folded edge 400 to provide a larger installation space for the battery cell 2, so that the energy density of the battery cell 2 may be improved; on the other hand, the end of the first tab 200 and the end of the second tab 600 are both relatively sharp, and the third tab 400 can separate the end of the first tab 200 and the end of the second tab 600 from the battery cell 2, so as to prevent the end of the first tab 200 and the end of the second tab 600 from contacting the battery cell 2 and piercing the film (e.g., the aluminum plastic film of the battery cell body) outside the battery cell 2, so that the structure of the battery cell 2 is more complete, which is beneficial to the long-term use of the battery cell 2, and the battery cell 2 and the third tab 400 can be attached more tightly.
Thus, the cell packaging structure 1 according to the embodiment of the utility model has the advantages of sufficient installation space, close fit with the cell 2, no damage to the cell 2, and the like.
According to the battery provided by the embodiment of the utility model, the battery cell packaging structure 1 provided by the embodiment of the utility model has the advantages of high capacity density, long service life, close adhesion and the like.
According to some embodiments of the present invention, as shown in fig. 1-4, the first flap 200 and the second flap 300 are disposed parallel and perpendicular to the body 100, and the third flap 400 is disposed perpendicular to the body 100, the first flap 200, and the second flap 300, respectively. It is understood that, in this case, the battery cell 2 may be a rectangular parallelepiped. Like this, not only simple structure and symmetrical structure are just taken as to electric core packaging structure 1, and electric core packaging structure 1's structure setting is more laminated with electric core 2's structure moreover, and main part 100, first hem 200, second hem 300 and third hem 400 are more inseparable with each surface laminating of electric core 2 promptly.
In some embodiments of the present invention, as shown in fig. 1-3, the first tab 500 is folded toward the second flap 300 with respect to the first flap 200 and attached to a side of the third flap 400 opposite to the first flap 200 and the second flap 300, and the second tab 600 is folded toward the first flap 200 with respect to the second flap 300 and attached to a side of the third flap 400 opposite to the first flap 200 and the second flap 300.
Thus, the first tab 500 and the second tab 600 can apply a certain acting force to the third tab 400 in the direction of the battery cell 2, so that the relative position between the third tab 400 and the battery cell 2 is more fixed, and the rebound phenomenon after the third tab 400 is bent relative to the main body 100 is reduced.
Specifically, the first tab 500 and the second tab 600 are located on the same plane, and both the first tab 500 and the second tab 600 are parallel to the third folding edge 400. Therefore, the dimension of the cell packaging structure 1 in the extending direction of the first flange 200 (i.e., the extending direction of the second flange 300) is smaller, so that the occupied space of the cell packaging structure 1 can be reduced, and the occupied space of the battery can be reduced.
In other embodiments of the present invention, as shown in fig. 4, the first tab 500 is disposed parallel to the first flap 200, and the second tab 600 is disposed parallel to the second flap 300. Like this first tab 500 and second tab 600 need not relative first hem 200 and second hem 300, can reduce the encapsulation step of electric core packaging structure 1 to electric core 2, shorten the encapsulation time, improve the production efficiency of battery.
According to some embodiments of the present invention, as shown in fig. 1-4, the first tab 500 includes a first connecting section 510, a second connecting section 520, and a first transition section 530, the first connecting section 510 and the second connecting section 520 are disposed in parallel, the first connecting section 510 is connected to the first flap 200, the second connecting section 520 is connected to the third flap 400, and the first transition section 530 is connected to the first connecting section 510 and the second connecting section 520, respectively.
The second tab 600 comprises a third attachment section 610, a fourth attachment section 620 and a second transition section 630, the third attachment section 610 and the fourth attachment section 620 being arranged in parallel, the third attachment section 610 being attached to the second flap 300, the fourth attachment section 620 being attached to the third flap 400, the second transition section 630 being attached to the third attachment section 610 and the fourth attachment section 620, respectively.
The first connecting segment 510, the second connecting segment 520, the third connecting segment 610 and the fourth connecting segment 620 are all triangular.
According to some embodiments of the present invention, the battery further includes a circuit board (not shown), the circuit board is disposed on a side of the third folding edge 400 facing away from the battery cell 2 and located between the first folding lug 500 and the second folding lug 600, and a thickness of the circuit board is greater than a height of the first folding lug 500 and a height of the second folding lug 600.
When the first tab 500 is not bent relative to the first flap 200, the height of the first tab 500 is the size from the tip of the first tab 500 (i.e. the end of the first tab 500 away from the first flap 200) to the first flap 200; when the first tab 500 is bent with respect to the first flap 200, the height of the first tab 500 is the sum of the thickness of the first connecting section 510, the thickness of the second connecting section 520, and the distance between the first connecting section 510 and the second connecting section 520.
When the second tab 600 is not bent with respect to the second flap 300, the height of the second tab 600 is the size from the tip of the second tab 600 (i.e. the end of the second tab 600 away from the second flap 300) to the second flap 300; when the second tab 600 is bent with respect to the second flap 300, the height of the second tab 600 is the sum of the thickness of the third connecting section 610, the thickness of the fourth connecting section 620, and the distance between the third connecting section 610 and the fourth connecting section 620.
Therefore, the first folding lug 500 is not bent relative to the first folding edge 200, and the second folding lug 600 is not bent relative to the second folding edge 300, so that the sum of the sizes of the battery, the third folding edge 400 and the battery cell 2 is not influenced, namely, the length of the battery can be always unchanged, so that the batteries in various embodiments can be replaced with one another, and the replaceability of the battery is greatly improved.
According to some embodiments of the present invention, a connection glue (not shown) is disposed between the circuit board and the third folding edge 400, and the connection glue wraps the first folding tab 500 and the second folding tab 600.
Like this, the joint compound can improve the joint strength between circuit board and the third hem 400, and circuit board and joint compound can be to first hem 500 and second hem 600 play the guard action, in order to delay the wearing and tearing speed of first hem 500 and second hem 600, especially, not bending at first hem 200 relatively in first hem 500, and when second hem 300 is not bent relatively in second hem 600, circuit board and joint compound are more important to the guard action of first hem 500 and second hem 600, thereby can improve electric core packaging structure 1's life, and then extend the life of battery.
According to some embodiments of the present invention, as shown in fig. 1 to fig. 4, a tab 3 is connected to the battery cell 2, the tab 3 extends from the battery cell 2 to a side of the battery cell 2 facing away from the main body 100, and the tab 3 may be located between the battery cell 2 and the third folded edge 400, so that the tab 3 does not interfere with the third folded edge 400, which is beneficial to ensuring the integrity of the third folded edge 400. And, be connected between utmost point ear 3 and the circuit board, for example the welding, utmost point ear 3 stretches out electric core packaging structure 1, is convenient for like this to be connected between utmost point ear 3 and the circuit board.
Other constructions and operations of the cell packaging structure 1 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A cell encapsulation structure, comprising:
a main body portion;
the first folded edge and the second folded edge are connected to two opposite sides of the main body part, and the first folded edge and the second folded edge are bent towards one side of the main body part in the thickness direction relative to the main body part;
a third folded edge that is connected to the main body portion and is folded toward the one side of the main body portion in the thickness direction with respect to the main body portion, the third folded edge being connected between the first folded edge and the second folded edge;
a first folding lug and a second folding lug, wherein the first folding lug is connected between the first folding edge and the third folding edge, the second folding lug is connected between the second folding edge and the third folding edge, and the first folding lug and the second folding lug are positioned on one side of the third folding edge, which is opposite to the first folding edge and the second folding edge;
the main body part, the first folded edge, the second folded edge, the third folded edge, the first folded lug and the second folded lug are integrated.
2. The cell packaging structure of claim 1, wherein the first folded edge and the second folded edge are parallel and perpendicular to the main body portion;
the third folded edge is perpendicular to the main body portion, the first folded edge, and the second folded edge.
3. The cell packaging structure of claim 1, wherein the first tab is bent relative to the first tab in a direction toward the second tab and attached to a side of the third tab opposite to the first tab and the second tab, and the second tab is bent relative to the second tab in a direction toward the first tab and attached to a side of the third tab opposite to the first tab and the second tab.
4. The cell packaging structure of claim 3, wherein the first folded lug and the second folded lug are located on the same plane, and the first folded lug and the second folded lug are both parallel to the third folded edge.
5. The cell packaging structure of claim 1, wherein the first folded lug is parallel to the first folded edge, and the second folded lug is parallel to the second folded edge.
6. The cell packaging structure of claim 1, wherein the first tab comprises a first connecting section, a second connecting section and a first transition section, the first connecting section and the second connecting section are arranged in parallel, the first connecting section is connected to the first folded edge, the second connecting section is connected to the third folded edge, and the first transition section is connected with the first connecting section and the second connecting section respectively;
the second folded lug comprises a third connecting section, a fourth connecting section and a second transition section, the third connecting section and the fourth connecting section are arranged in parallel, the third connecting section is connected to the second folded edge, the fourth connecting section is connected to the third folded edge, and the second transition section is respectively connected with the third connecting section and the fourth connecting section;
the first connecting section, the second connecting section, the third connecting section and the fourth connecting section are all triangular.
7. A battery, comprising:
an electric core;
the cell packaging structure of any of claims 1 to 6, wherein the main body portion, the first flange, the second flange, and the third flange are attached to the cell, and the first flange and the second flange are located on a side of the third flange facing away from the cell.
8. The battery of claim 7, further comprising:
the circuit board is arranged on one side, back to the battery cell, of the third folded edge and located between the first folded lug and the second folded lug, and the thickness of the circuit board is larger than the height of the first folded lug and the height of the second folded lug.
9. The battery of claim 8, wherein a connection adhesive is disposed between the circuit board and the third folded edge, and the connection adhesive wraps the first folded tab and the second folded tab.
10. The battery of claim 7, wherein a tab is connected to the cell, the tab extending from the cell to a side of the cell opposite the body portion and protruding out of the cell encapsulation structure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121465964.5U CN215451562U (en) | 2021-06-29 | 2021-06-29 | Battery cell packaging structure and battery with same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121465964.5U CN215451562U (en) | 2021-06-29 | 2021-06-29 | Battery cell packaging structure and battery with same |
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| CN215451562U true CN215451562U (en) | 2022-01-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023151699A1 (en) * | 2022-02-10 | 2023-08-17 | 珠海冠宇电源有限公司 | Battery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023151699A1 (en) * | 2022-02-10 | 2023-08-17 | 珠海冠宇电源有限公司 | Battery |
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