CN218299964U - Single battery and battery pack - Google Patents
Single battery and battery pack Download PDFInfo
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- CN218299964U CN218299964U CN202222859367.1U CN202222859367U CN218299964U CN 218299964 U CN218299964 U CN 218299964U CN 202222859367 U CN202222859367 U CN 202222859367U CN 218299964 U CN218299964 U CN 218299964U
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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 application discloses battery cell and battery package. The single battery comprises a shell and a pole terminal. The shape of the shell is a quadrangular prism, and the shell is provided with four side surfaces: the display panel comprises two first surfaces which are oppositely arranged and two second surfaces which are oppositely arranged, wherein the area of each first surface is larger than that of each second surface; the pole terminal comprises a positive pole and a negative pole which are respectively arranged on the two second surfaces. Therefore, when the unit batteries are connected in series, the poles of the adjacent unit batteries with different polarities can be directly connected without welding a bus bar, so that the assembly efficiency is higher, and the cost is lower. In addition, the post terminal is located the second face, and the thermal expansion of second face is less, can avoid the post terminal between adjacent battery cell to take place great extrusion, prevents that battery cell from damaging, improves battery cell's quality, and the post terminal setting can reduce the hindrance of post terminal to battery cell thermal expansion at the second face, improves battery cell's security.
Description
Technical Field
The application relates to the technical field of batteries, in particular to a single battery and a battery pack.
Background
The single battery generally includes a casing, a battery cell and a terminal post, the battery cell is accommodated in the casing, and the terminal post is disposed on the top of the casing and electrically connected to a positive electrode tab or a negative electrode tab of the battery cell. In the related art, since the post terminal is disposed at the top of the housing, when the unit cells are connected in series, the post terminals of different polarities of the adjacent unit cells need to be connected through the bus bar, and especially in a large-capacity battery pack, a large number of bus bars need to be welded, so that the assembly time is prolonged, and the manufacturing cost is increased.
SUMMERY OF THE UTILITY MODEL
The present application is directed to solving at least one of the problems in the prior art. For this reason, this application provides a single cell, when carrying out a plurality of single cells and establish ties each other, adjacent single cell's utmost point post of different polarities can the lug connection, need not to weld the busbar, and packaging efficiency is higher, and the cost is lower.
The application also provides another single battery.
The application also provides a battery pack comprising the single battery.
A single battery according to an embodiment of the first aspect of the present application includes:
a housing, the housing being quadrangular in shape, the housing having four sides: the two first surfaces are alternately connected with the two second surfaces, and the area of the first surfaces is larger than that of the second surfaces;
and the pole terminal comprises a positive pole and a negative pole, and the positive pole and the negative pole are respectively arranged on the two second surfaces.
According to the single battery of the embodiment of the application, at least the following beneficial effects are achieved:
the post terminal is located the second face, and when establishing ties, the not polarity's of adjacent battery cell utmost point post can the lug connection, need not to weld the busbar, and the packaging efficiency is higher, and the cost is lower. In addition, the utmost point post terminal is located the second face, and the thermal expansion of second face is less, can avoid the utmost point post terminal between adjacent battery cell to take place great extrusion, prevents that battery cell from damaging, improves battery cell's quality, and the facial area of second is less than the area of first face, consequently, utmost point post terminal sets up and can reduce the hindrance of utmost point post terminal to battery cell thermal expansion at the second face, improves battery cell's security.
According to some embodiments of the application, a minimum distance of the edge of the post terminal from an edge of the second face is not less than 5mm.
According to some embodiments of the present application, a minimum distance between the post terminal and an upper edge of the second face is X1, a minimum distance between the post terminal and a lower edge of the second face is X2, and X1 is smaller than X2.
According to some embodiments of the present application, one of the positive electrode post and the negative electrode post of the single battery has an insertion portion, and the other has an insertion groove, and the insertion portion of the one single battery can be inserted into the insertion groove of the other single battery.
According to some embodiments of the present application, the unit cell further includes an explosion-proof valve provided at a top surface or a bottom surface of the case.
According to a second aspect embodiment of the present application, a battery cell includes:
a housing, the housing being quadrangular in shape, the housing having four sides: the two first surfaces are alternately connected with the two second surfaces, and the area of the first surfaces is larger than that of the second surfaces;
the pole terminal comprises a positive pole and a negative pole, wherein the positive pole and the negative pole are respectively arranged on two first surfaces, the geometric center of each first surface is a point A, the geometric center of the coplanar cross section of each first surface of the pole terminal is a point B, and the point A and the point B are arranged at intervals.
According to the single battery of the embodiment of the application, at least the following beneficial effects are achieved:
the post terminal is located the second face, and when establishing ties, the utmost point post of adjacent battery cell's different polarity can the lug connection, need not to weld the busbar, and packaging efficiency is higher, and the cost is lower. In addition, the thermal expansion of the geometric centre point of the first face of general battery cell is the biggest, therefore in this application utmost point post terminal with the geometric centre B point of the coplanar cross-section of first face, set up with the geometric centre A point interval of first face, utmost point post terminal is located the position of the geometric centre A point of skew first face promptly, can avoid the utmost point post terminal between adjacent battery cell to take place great extrusion, prevents that battery cell from damaging, improves battery cell's quality. And the position of the pole terminal deviated from the geometric center of the first surface can reduce the obstruction of the pole terminal to the thermal expansion of the single battery, and the safety of the single battery is improved.
According to some embodiments of the application, a minimum distance of an edge of the post terminal from an edge of the first face is not less than 5mm.
According to some embodiments of the present application, the minimum distance of the pole terminal from the upper edge of the first face is Y1, the minimum distance of the lower edge of the first face is Y2, and Y1 is smaller than Y2.
According to some embodiments of the present application, one of the positive electrode post and the negative electrode post of the single battery has a plug part, the other has a plug groove, and the plug part of the single battery can be plugged into the plug groove of the other single battery.
A battery pack according to an embodiment of a third aspect of the present application includes:
the plurality of single batteries are sequentially arranged in the box body along a set direction, and any two adjacent single batteries are arranged, wherein a positive pole column of one single battery is connected with a negative pole column of the other single battery.
According to the battery package of this application embodiment, have at least following beneficial effect:
by adopting the single battery in the embodiment of the first aspect or the embodiment of the second aspect, the positive pole column and the negative pole column are respectively positioned on two opposite side surfaces of the shell, and the poles with different polarities of the adjacent single batteries can be directly connected without welding a bus bar, so that the assembly efficiency is higher, and the cost is lower.
Additional aspects and advantages of the present application 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 present application.
Drawings
The present application is further described with reference to the following figures and examples, in which:
fig. 1 is a schematic view of a single cell according to an embodiment of the first aspect of the present application;
fig. 2 is another schematic view of the unit cell of fig. 1;
FIG. 3 is a schematic view of a cell according to an embodiment of the second aspect of the present application;
FIG. 4 is a schematic view of the cell of FIG. 3 from another perspective;
FIG. 5 is a schematic view of a battery pack according to an embodiment of the third aspect of the present application;
fig. 6 is a schematic view of a battery pack according to another embodiment of the third aspect of the present application.
Reference numerals are as follows:
the battery cell 100, the housing 110, the first surface 111, the second surface 112, the pole terminal 120, and the explosion-proof valve 130.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it is to be understood that the positional descriptions, such as the directions of up, down, front, rear, left, right, etc., referred to herein are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present application.
In the description of the present application, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and the above, below, exceeding, etc. are understood as excluding the present number, and the above, below, within, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present application, unless otherwise expressly limited, terms such as set, mounted, connected and the like should be construed broadly, and those skilled in the art can reasonably determine the specific meaning of the terms in the present application by combining the detailed contents of the technical solutions.
In the description of the present application, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., means 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 present application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The single battery generally includes a casing, a battery cell and a terminal post, the battery cell is accommodated in the casing, and the terminal post is disposed on the top of the casing and electrically connected to a positive electrode tab or a negative electrode tab of the battery cell. In the related art, since the post terminal is disposed at the top of the housing, when the unit cells are connected in series, posts of different polarities of adjacent unit cells need to be connected through a bus bar, and especially in a large-capacity battery pack, a large number of bus bars need to be welded, so that the assembly time is prolonged, and the manufacturing cost is increased.
In view of the above problems, the present application provides a single battery 100, and referring to fig. 1 and fig. 2, fig. 1 is a schematic view of a single battery according to an embodiment of the present application, and fig. 2 is a schematic view of another perspective view of the single battery in fig. 1, where the single battery 100 of the present embodiment includes: a housing 110 and a post terminal 120.
The housing 110 is quadrangular, the housing 110 has four side surfaces, which are two first surfaces 111 disposed opposite to each other and two second surfaces 112 disposed opposite to each other, the two first surfaces 111 and the two second surfaces 112 are alternately connected, and the area of the first surface 111 is larger than that of the second surface 112. The post terminal 120 includes a positive post connected to the positive tab of the electric core inside the casing 110 and a negative post connected to the negative tab of the electric core, which are respectively disposed on the two second surfaces 112.
Because the post terminals 120 are located on the two oppositely-disposed second surfaces 112 of the housing 110, when the single batteries 100 of the present embodiment are applied to a battery pack and the adjacent single batteries 100 are connected in series, posts of different polarities of the adjacent single batteries 100 can be directly connected, that is, a positive post of one single battery 100 is connected to a negative post of another single battery 100, or a negative post of one single battery 100 is connected to a positive post of another single battery 100, so that the electrical connection between the adjacent single batteries 100 is realized, and the connection through a busbar is not required. Therefore, compared with the conventional technology, the welding process of the bus bar can be reduced when the single batteries 100 of the embodiment are connected in series, so as to improve the assembly efficiency. And the cost of the battery pack can be saved because the bus bar does not need to be welded.
In addition, the area of the second surface 112 is smaller than that of the first surface 111. Therefore, the thermal expansion of the second surface 112 is small in the working process, so that the post terminal 120 is arranged on the second surface 112 in the embodiment, and the post terminal 120 between the adjacent single batteries 100 can be prevented from being extruded greatly, so that the single batteries 100 are prevented from being damaged, and the quality of the single batteries 100 is improved. Meanwhile, the pole terminal 120 is disposed on the second surface 112, so that the resistance of the pole terminal 120 to the thermal expansion of the single battery 100 can be reduced, and the safety of the single battery 100 can be improved.
On the basis of the above embodiment, the second surface 112 of the housing 110 is provided with a mounting hole, one end of the post terminal 120 is fixed in the mounting hole, and the minimum distance between the edge of the post terminal 120 and the edge of the second surface 112 is not less than 5mm. That is, the minimum distance from the hole wall of the mounting hole to the edge of the second surface 112 is greater than 5mm, which prevents the case 110 from being too small to be easily broken, thereby improving the connection strength between the post terminal 120 and the case 110 to improve the reliability of the single battery 100 of the present embodiment.
Referring to fig. 2, in some embodiments, the minimum distance between the post terminal 120 and the upper edge of the second surface 112 is X1, the minimum distance between the lower edge of the second surface 112 of the post terminal 120 is X2, and X1 is smaller than X2, i.e., the post terminal 120 is located above the second surface 112. When the battery cell 100 of this embodiment is applied to a battery pack, a signal acquisition assembly can be disposed on the top of the battery cell 100, the signal acquisition assembly has an extension portion for inserting into a gap between adjacent battery cells 100 and is connected to the post terminal 120 for acquiring the voltage of the battery cell 100, and the post terminal 120 of this embodiment is disposed at a position above the second surface 112, so that the length of the extension portion can be reduced, and the manufacturing cost can be saved.
In some embodiments, one of the positive and negative posts of the single battery 100 has a plug portion, the other has a plug groove, and the plug portion of one single battery 100 can be plugged into the plug groove of the other single battery 100. For example, the positive post of the battery cell 100 has a mating portion at an end of the positive post facing away from the second face 112, the negative post has a mating groove, and an opening of the mating groove is at an end of the negative post facing away from the second face 112. When a plurality of battery cells 100 establish ties, the grafting portion of the positive post of a battery cell 100 can be inserted and stretch into the inserting groove from the opening to make two adjacent battery cell 100's positive posts and negative pole post pass through grafting portion and inserting groove and connect, with the area of contact of increase positive post and negative pole post, reduce bad contact's risk, and can reduce the contact resistance value between positive post and the negative pole post.
In addition, because the insertion part is located at the end of the positive pole column away from the second face 112, the insertion groove is located at the end of the negative pole column away from the second face 112, one end of the insertion part can extend into the insertion groove from the open end, and a certain gap is formed between the insertion part and the side wall of the insertion groove away from the opening. The second surface 112 has a certain deformation space, so that the post terminal 120 is prevented from abutting against each other along the normal direction of the second surface 112 to hinder the thermal expansion of the single battery 100, and the safety of the single battery 100 is improved.
In addition, in the use or transportation process, even keep away from certain distance each other because of reasons such as vibration between the adjacent battery cell 100, the grafting portion of two adjacent battery cell 100 still partially pegs graft in the spliced eye for electric core between the battery cell is connected, and the reliability is higher.
Referring to fig. 1, in some embodiments, the unit batteries 100 further include an explosion-proof valve 130, and the explosion-proof valve 130 is disposed on the top surface or the bottom surface of the housing 110, so that the unit batteries 100 can be exhausted from above or below when thermal runaway occurs, and mutual interference between the unit batteries 100 is reduced. While avoiding the damage of the adjacent unit cells 100 caused by the thermal runaway of the unit cells 100.
In addition, since the post terminal 120 is provided on the second surface 112 of the housing 110, the top surface or the bottom surface of the housing 110 has a larger space for providing the explosion-proof valve 130. Therefore, the explosion-proof valve 130 can be directly arranged on the top surface or the bottom surface of the housing 110, the process assembly of the explosion-proof valve 130 is simple, or the explosion-proof valve 130 and the housing 110 are integrally formed, the process flow is shortened, and the processing efficiency is improved.
Referring to fig. 3 and 4, fig. 3 is a schematic diagram of a single cell according to an embodiment of a second aspect of the present application, fig. 4 is a schematic diagram of another perspective view of the single cell in fig. 3, and a single cell 100 according to an embodiment of the second aspect includes: a housing 110 and a post terminal 120.
Wherein, the shape of casing 110 is the quadrangular, and casing 110 has four sides: two first faces 111 arranged oppositely and two second faces 112 arranged oppositely, the two first faces 111 and the two second faces 112 are alternately connected, and the area of the first face 111 is larger than that of the second face 112. The terminal post 120 includes a positive post and a negative post, the positive post is connected to a positive tab of an electric core inside the casing 110, the negative post is connected to a negative tab of the electric core, the positive post and the negative post are respectively disposed on two first surfaces 111, a geometric center of the first surfaces 111 is a point a, a geometric center of a cross section of the terminal post 120 coplanar with the first surfaces 111 is a point B, and the point a and the point B are spaced.
Because the post terminals 120 are located on the two first surfaces 111 of the housing 110, the single battery 100 of the present embodiment is applied to a battery pack, when the adjacent single batteries 100 are connected in series, the posts of different polarities of the adjacent single batteries 100 can be directly connected, that is, the positive post of one single battery 100 is connected to the negative post of another single battery 100, or the negative post of one single battery 100 is connected to the positive post of another single battery 100, thereby achieving the electrical connection between the adjacent single batteries 100, and without connecting through a busbar, therefore, compared with the conventional art, when the single batteries 100 of the present embodiment are connected in series, the welding process of the busbar can be reduced, and the assembly efficiency can be improved. And because the bus bar does not need to be welded, the cost of the battery pack can be saved, and the cost of the battery pack is lower.
In addition, the central position of the first surface 111 has the largest thermal expansion in the working process, so that the pole terminal 120 is arranged at the position deviated from the geometric center point a of the first surface 111 in the embodiment, the pole terminal 120 between the adjacent single batteries 100 can be prevented from being greatly extruded, the single batteries 100 are prevented from being damaged, and the quality of the single batteries 100 is improved. Meanwhile, the resistance of the pole terminals 120 to the thermal expansion of the single battery 100 due to mutual abutting is reduced, and the safety of the single battery 100 is improved.
Referring to fig. 4, in some embodiments, the first face 111 of the upper case 110 is provided with a mounting hole in which one end of the post terminal 120 is fixed, and a minimum distance between an edge of the post terminal 120 and an edge of the first face 111 is not less than 5mm. That is, the minimum distance from the hole wall of the mounting hole to the edge of the first face 111 is not less than 5mm, which prevents the housing 110 from being too small to be easily broken, thereby improving the connection strength between the post terminal 120 and the housing 110 to improve the reliability of the unit battery 100 of the present embodiment.
Referring to fig. 4, in some embodiments, the minimum distance of pole terminal 120 from the upper edge of first face 111 is Y1, the minimum distance of the lower edge of first face 111 of pole terminal 120 is Y2, and Y1 is less than Y2. That is, the post terminal 120 is located on the upper side of the first surface 111, when the battery cell 100 of the present embodiment is applied to a battery pack, a signal collecting assembly can be disposed on the top of the battery cell 100, the signal collecting assembly has an extending portion for inserting into a gap between adjacent battery cells 100, and is connected to the post terminal 120 for collecting the voltage of the battery cell 100, and since the post terminal 120 of the present embodiment is disposed on the upper side of the first surface 111, the length of the extending portion can be reduced, thereby saving the manufacturing cost.
In some embodiments, one of the positive and negative posts of the single battery 100 has a plug portion, the other has a plug groove, and the plug portion of one single battery 100 can be plugged into the plug groove of the other single battery 100. For example, the positive post of the single battery 100 has a plug part located at an end of the positive post facing away from the first face 111, the negative post has a plug groove, and an opening of the plug groove is located at an end of the negative post facing away from the first face 111. When a plurality of battery cells 100 establish ties, the grafting portion of the positive post of a battery cell 100 can be inserted and stretch into the inserting groove from the opening to make two adjacent battery cells 100's positive post and negative pole post pass through grafting portion and inserting groove and connect, with the area of contact of increase positive post and negative pole post, reduce the risk of contact failure, and can reduce the contact resistance value between positive post and the negative pole post.
In addition, the inserting part is located at one end, away from the first face 111, of the positive pole, the inserting groove is located at one end, away from the first face 111, of the negative pole, one end of the inserting part can stretch into the inserting groove from one end of the opening, and a certain gap is formed between the inserting part and the side wall, away from the opening, of the inserting groove. The first surface 111 has a certain deformation space, so that the pole terminal 120 is prevented from abutting against each other along the normal direction of the first surface 111 to hinder the thermal expansion of the single battery 100, and the safety of the single battery 100 is improved.
In addition, in the use or transportation process, even if the adjacent single batteries 100 are away from each other for reasons such as vibration, the inserting parts of the two adjacent single batteries 100 are still partially inserted into the inserting holes, so that the electric cores of the single batteries 100 are connected, and the reliability is higher.
On the basis of the above embodiment, the single battery 100 further includes the explosion-proof valve 130, and the explosion-proof valve 130 is disposed on the top surface or the bottom surface of the housing 110, so that the single battery 100 can be exhausted from above or below when thermal runaway occurs, and mutual obstruction between the single batteries 100 is reduced. While avoiding the unit cell 100 from causing the adjacent unit cell 100 to be damaged when the unit cell 100 is thermally out of control.
Further, since the pole terminal 120 is provided on the first surface 111 of the housing 110, the top surface or the bottom surface of the housing 110 has a larger space for providing the explosion-proof valve 130. Therefore, the explosion-proof valve 130 can be directly arranged on the top surface or the bottom surface of the housing 110, the process assembly of the explosion-proof valve 130 is simple, or the explosion-proof valve 130 and the housing 110 are integrally formed, so that the process flow is shortened, and the processing efficiency is improved.
Referring to fig. 5 and 6, fig. 5 is a schematic view of a battery pack according to an embodiment of the third aspect of the present application, and fig. 6 is a schematic view of a battery pack according to another embodiment of the third aspect of the present application. Wherein the case in fig. 5 and 6 is not shown in order to clearly see the arrangement of the unit cells. The battery pack of the embodiment of the third aspect comprises: the plurality of single batteries 100 are sequentially arranged in the box body along a set direction (the direction from the positive pole to the negative pole, or the direction from the negative pole to the positive pole), and two single batteries 100 which are adjacent to each other are arranged along the set direction, wherein the positive pole of one single battery 100 is connected with the negative pole of the other single battery 100. Since the present embodiment employs the single battery 100 (as shown in fig. 5) of the first aspect embodiment or the single battery 100 (as shown in fig. 6) of the second aspect embodiment, the post terminal 120 is disposed on the side surface of the housing 110, posts of different polarities of adjacent single batteries 100 can be directly connected, a bus bar does not need to be welded, the assembly efficiency is higher, and the cost is lower.
In addition, it should be noted that, since the single cell 100 of the embodiment of the first aspect or the single cell 100 of the embodiment of the second aspect is adopted in the embodiment, the embodiment has all the beneficial effects of the single cell 100 of the embodiment of the first aspect or the single cell 100 of the embodiment of the second aspect, and details are not repeated here.
The embodiments of the present application have been described in detail with reference to the drawings, but the present application is not limited to the embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present application. Furthermore, the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
Claims (10)
1. A battery cell, comprising:
a housing, the housing being quadrangular in shape, the housing having four sides: the two first surfaces are alternately connected with the two second surfaces, and the area of the first surfaces is larger than that of the second surfaces;
and the pole terminal comprises a positive pole and a negative pole, and the positive pole and the negative pole are respectively arranged on the two second surfaces.
2. The unit cell according to claim 1, characterized in that a minimum distance of an edge of the post terminal from an edge of the second face is not less than 5mm.
3. The single-cell battery according to claim 1, wherein the minimum distance between the post terminal and the upper edge of the second surface is X1, the minimum distance between the lower edge of the second surface of the post terminal is X2, and X1 is smaller than X2.
4. The battery cell according to claim 1, wherein one of the positive electrode tab and the negative electrode tab of the battery cell has an insertion portion, the other has an insertion groove, and the insertion portion of the one battery cell is insertable into the insertion groove of the other battery cell.
5. The battery cell according to claim 1, further comprising an explosion-proof valve disposed on a top or bottom surface of the housing.
6. A battery cell, comprising:
a housing, the housing being quadrangular in shape, the housing having four sides: the two first surfaces are alternately connected with the two second surfaces, and the area of the first surfaces is larger than that of the second surfaces;
the pole terminal comprises a positive pole and a negative pole, wherein the positive pole and the negative pole are respectively arranged on two first surfaces, the geometric center of each first surface is a point A, the geometric center of the coplanar cross section of each first surface of the pole terminal is a point B, and the point A and the point B are arranged at intervals.
7. The battery cell according to claim 6, wherein the minimum distance between the edge of the post terminal and the edge of the first face is not less than 5mm.
8. The battery cell according to claim 6, wherein the minimum distance between the post terminal and the upper edge of the first surface is Y1, the minimum distance between the lower edge of the first surface of the post terminal is Y2, and Y1 is smaller than Y2.
9. The battery cell as claimed in claim 6, wherein one of the positive electrode tab and the negative electrode tab of the battery cell has a plug portion, the other has a plug groove, and the plug portion of one of the battery cells is capable of being plugged into the plug groove of the other of the battery cells.
10. Battery package, its characterized in that includes:
a box body;
the battery cell according to any one of claims 1 to 9, wherein a plurality of the battery cells are sequentially arranged in a predetermined direction inside the case, and two of the battery cells that are arbitrarily adjacent to each other in the predetermined direction have the positive electrode tab of one of the battery cells connected to the negative electrode tab of the other of the battery cells.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222859367.1U CN218299964U (en) | 2022-10-28 | 2022-10-28 | Single battery and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222859367.1U CN218299964U (en) | 2022-10-28 | 2022-10-28 | Single battery and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218299964U true CN218299964U (en) | 2023-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222859367.1U Active CN218299964U (en) | 2022-10-28 | 2022-10-28 | Single battery and battery pack |
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| Country | Link |
|---|---|
| CN (1) | CN218299964U (en) |
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- 2022-10-28 CN CN202222859367.1U patent/CN218299964U/en active Active
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Address after: 518000 1-2 Floor, Building A, Xinwangda Industrial Park, No. 18 Tangjianan Road, Gongming Street, Guangming New District, Shenzhen City, Guangdong Province Patentee after: Xinwangda Power Technology Co.,Ltd. Address before: 518000 Xinwangda Industrial Park, No.18, Tangjia south, Gongming street, Guangming New District, Shenzhen City, Guangdong Province Patentee before: SUNWODA ELECTRIC VEHICLE BATTERY Co.,Ltd. |
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