CN218788489U - Single battery, battery pack and electric automobile - Google Patents
Single battery, battery pack and electric automobile Download PDFInfo
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- CN218788489U CN218788489U CN202222732473.3U CN202222732473U CN218788489U CN 218788489 U CN218788489 U CN 218788489U CN 202222732473 U CN202222732473 U CN 202222732473U CN 218788489 U CN218788489 U CN 218788489U
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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, battery package and electric automobile, battery cell include top cap, casing and insulating part, and the casing includes diapire, two relative settings first wall and two relative second walls that set up, insulating part include first insulation main part and second insulation main part, and first insulation main part and second insulation main part cover respectively in relative first wall to expose at least of casing second wall and/or at least diapire and/or part the top cap, battery package and electric automobile all include battery cell. In this application, form through first insulating main part and second insulating main part between the first wall of adjacent battery cell and insulate to beat when the exposed second wall of casing or diapire can supply the battery cell installation to glue fixedly, because the colloid does not contact with the insulating part, the bonding strength of colloid and casing is high, can prevent that the colloid from droing, and can avoid the insulating part aversion or peel off, has improved battery cell's assembly strength.
Description
Technical Field
The application relates to the technical field of power batteries, in particular to a single battery, a battery pack and an electric automobile.
Background
Based on the consideration of energy density of a battery pack, CTP, CTC and the like have become the main development trend of power battery packaging, generally, the single batteries are arranged in a box body and fixed by gluing on the small surface and the bottom surface, and the adjacent single batteries and the single batteries and other electrical elements are required to be in an insulation state, so that an insulation part needs to be arranged outside the single batteries, and in the related art, the insulation part is easy to shift or peel when gluing and fixing, and the insulation performance and the assembly strength of the single batteries are affected.
SUMMERY OF THE UTILITY MODEL
The present application is directed to solving at least one of the problems in the prior art. Therefore, the application provides a single battery, which can improve the insulating property and the assembling strength of the single battery.
The application also provides a battery pack with the single battery.
The application also provides an electric automobile with the single battery.
A single battery according to an embodiment of the first aspect of the present application includes:
a top cover;
the shell comprises the bottom wall, two oppositely arranged first walls and two oppositely arranged second walls, the area of the first walls is larger than that of the second walls, the two first walls and the two second walls are alternately connected, the bottom wall is respectively connected with the edges of the two first walls and the edges of the two second walls, and the top cover is respectively connected with the edges of one opposite sides of the two first walls and the two second walls;
the insulating part comprises a first insulating main body and a second insulating main body, wherein the first insulating main body and the second insulating main body cover the first wall opposite to the shell respectively and expose at least part of the second wall and/or at least part of the bottom wall and/or at least part of the top cover of the shell.
According to the single battery of the embodiment of the application, at least the following beneficial effects are achieved:
in this application, form through first insulating main part and second insulating main part between the first wall of adjacent battery cell and insulate to beat when the exposed second wall of casing or diapire can supply the battery cell installation to glue fixedly, because the colloid does not contact with the insulating part, the bonding strength of colloid and casing is high, can prevent that the colloid from droing, and can avoid the insulating part aversion or peel off, has improved battery cell's assembly strength.
According to some embodiments of the present application, the first insulating body and the second insulating body are separated from each other in a width direction of the case.
According to some embodiments of the present application, the first insulating body includes a first main body portion and a first edge portion, the first edge portion is connected to an outer periphery of the first main body portion and protrudes toward the second insulating body, the first main body portion is attached to one of the first walls of the housing, and the first edge portion is attached to the second wall and/or the bottom wall and/or the top cover;
the second insulating main body comprises a second main body part and a second edge part, the second edge part is connected to the periphery of the second main body part and protrudes towards the first insulating main body, the second main body part is attached to the other first wall of the shell, and the second wall and/or the bottom wall and/or the top cover is attached with the second edge part.
According to some embodiments of the application, the insulating part still includes connecting portion, the both ends of connecting portion respectively with first insulating main part the insulating main part of second is connected, connecting portion attached in second wall and exposed part the second wall and/or attached in diapire and exposed part diapire and/or attached in top cap and exposed part the top cap.
According to some embodiments of the application, the cell further includes a top cover patch attached to a side of the top cover facing away from the housing.
According to some embodiments of the present application, the first insulating body includes a first body portion and a plurality of first edge portions sequentially connected to and circumferentially disposed on an outer periphery of the first body portion, the first edge portions are protrudingly disposed toward the second insulating body, and the first edge portions are attached to the second wall, the bottom wall, and the top cover patch;
the second insulation main body comprises a second main body part and a plurality of second edge parts, the second edge parts are sequentially connected and annularly arranged on the periphery of the second main body part, the second edge parts face the first insulation main body in a protruding mode, and the second wall, the bottom wall and the top cover patch are attached with the second edge parts.
According to some embodiments of the present application, the first insulating main body includes a first main body portion and a first edge portion connected to each other, the second insulating main body includes a second main body portion and a second edge portion connected to each other, the first main body portion and the second main body portion are respectively attached to the first wall opposite to the housing, the first edge portion and the second edge portion are both connected to a portion of the top cover patch, the first edge portion and the top cover patch are stacked, and the second edge portion and the top cover patch are stacked.
According to some embodiments of the application, the insulating member further comprises a spacer connected to both a side of the first insulating body facing away from the first wall and a side of the second insulating body facing away from the first wall, the spacer being located at an edge of the first wall.
According to some embodiments of the application, the insulating part further comprises a plurality of spacing parts, wherein the spacing parts are connected to one side of the first insulating main body, which faces away from the first wall, and one side of the second insulating main body, which faces away from the first wall, and are distributed at intervals and extend towards the second wall, and an air outlet channel is defined between the spacing parts.
A battery pack according to an embodiment of the second aspect of the present application includes:
the box body comprises a first bottom wall and a plurality of first side walls which are connected with the first bottom wall and are arranged at intervals;
the single batteries in the first aspect embodiment are accommodated in the box body, the single batteries are arranged in at least one row along a direction perpendicular to the first walls and are located between the adjacent first side walls, the bottom walls of the single batteries are bonded to the first bottom walls, and the second walls of the single batteries are bonded to the first side walls.
According to the electric automobile of the embodiment of the second aspect of the present application, including:
the pallet comprises a second bottom wall and a plurality of second side walls which are connected with the second bottom wall and are arranged at intervals;
a plurality of single batteries in the first aspect embodiment, the single batteries are placed in a tray, the single batteries are arranged in at least one row along a direction perpendicular to the first walls and are located between the adjacent second side walls, the bottom walls of the single batteries are adhered to the second bottom walls, and the second walls of the single batteries are adhered to the second side walls.
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 structural diagram of an embodiment of a single battery of the present application;
FIG. 2 is a schematic view of the housing of FIG. 1;
FIG. 3 is an exploded view of the cell of FIG. 1;
FIG. 4 is a schematic view of one embodiment of the first insulating body or the second insulating body of FIG. 3;
FIG. 5 is a schematic view of another embodiment of the first insulating body or the second insulating body of FIG. 3;
FIG. 6 is a schematic view of another embodiment of the first insulating body or the second insulating body of FIG. 3;
fig. 7 is a schematic structural diagram of another embodiment of a single cell of the present application;
FIG. 8 is a schematic view of the cap patch mating with the cap;
FIG. 9 is a schematic view of one embodiment of a spacer;
FIG. 10 is a schematic view of another embodiment of a spacer;
fig. 11 is a schematic view of an embodiment of a battery pack of the present application;
FIG. 12 is a schematic view of an embodiment of an electric vehicle according to the present application.
Reference numerals are as follows:
a housing 100, a bottom wall 110, a first wall 120, a second wall 130; the insulation member 200, the first insulation main body 210, the first main body 211, the first edge 212, the second insulation main body 220, the second main body 221, the second edge 222, the connecting portion 230, the spacing portion 240, and the air duct 250; a top cover 300; a cap patch 400; a case 500, a first bottom wall 510, a first side wall 520; a vehicle frame 600, a tray 610, a second bottom wall 611 and a second side wall 612.
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 accompanying drawings are illustrative and are 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 should be understood that the positional descriptions referred to, for example, the directions or positional relationships indicated by upper, lower, front, rear, left, right, etc., are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to 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 larger, smaller, larger, etc. are understood as excluding the present numbers, and larger, smaller, inner, etc. are understood as including the present numbers. 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 specifically limited, terms such as set, installed, connected and the like should be understood broadly, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present application in combination with the specific 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.
In an embodiment of the present application, referring to fig. 1, the battery cell includes a casing 100, an insulating member 200, and a top cover 300, wherein a cavity for placing a battery cell is generally disposed inside the casing 100, an opening communicated with the cavity is disposed on one side of the casing, the battery cell is placed inside the casing 100 at the opening, and the top cover 300 covers the opening, so that the cavity is sealed and the battery cell is sealed inside the casing 100. In order to meet the insulation requirement between adjacent single batteries, the insulating member 200 is disposed outside the housing 100, and the insulating member 200 is attached to the surface of the housing 100 to insulate the adjacent single batteries.
Specifically, as shown in fig. 2, the housing 100 includes a bottom wall 110, two oppositely disposed first walls 120 and two oppositely disposed second walls 130, the area of the first walls 120 is larger than that of the second walls 130, the two first walls 120 and the two second walls 130 are alternately connected, the first walls 120 are connected between the two second walls 130, and the second walls 130 are connected between the two first walls 120; the bottom wall 110 connects the edges of the two first walls 120 and the two second walls 130, respectively, and the top cover 300 connects the edges of the opposite sides of the two first walls 120 and the two second walls 130, respectively, so that the top cover 300 is disposed opposite to the bottom wall 110, and the first walls 120 and the second walls 130 are disposed around the outer circumference of the bottom wall 110 and the outer circumference of the top cover 300. Thus, the two first walls 120, the two second walls 130, the bottom wall 110 and the top cover 300 combine to form the square housing 100 having a cavity inside.
As shown in fig. 1 and fig. 3, the insulating member 200 includes a first insulating main body 210 and a second insulating main body 220, and the first insulating main body 210 and the second insulating main body 220 respectively cover two first walls 120 of the housing 100, and expose at least a portion of the second wall 130 and/or at least a portion of the bottom wall 110 and/or at least a portion of the top cover 300 of the housing 100.
From this, a plurality of battery cells can be arranged along the extending direction of second wall 130, form through first insulating main part 210 and second insulating main part 220 between the first wall 120 of adjacent battery cell and insulate, and it is fixed to beat to glue when the naked second wall 130 of casing 100 or diapire 110 can supply the battery cell installation, because the colloid does not contact with insulator 200, the colloid is high with casing 100's bonding strength, can prevent that the colloid from droing, and can avoid battery cell to beat when gluing fixedly, insulator 200 shifts or peels off, thereby on the basis of realizing adjacent battery cell mutual insulation, the assembly strength of battery cell has been improved.
It should be noted that, in the above embodiment, when the unit batteries are arranged along the extending direction of the second wall 130, the first walls 120 of the adjacent unit batteries are arranged oppositely, and the insulating member 200 completely covers the first wall 120 of the housing 100, so that the first walls 120 of the unit batteries can be well insulated and protected, and absolute insulation of the adjacent unit batteries is realized; besides, the insulating member 200 is positioned between adjacent single batteries and insulates the adjacent single batteries, and also covers the second wall 130, the bottom wall 110 or the top cover 300 of the housing 100, so that the second wall 130, the bottom wall 110 or the top cover 300 of the single batteries can be insulated from other electrical elements, and the insulating effect after the single batteries are assembled is optimized.
In addition, the insulating member 200 can be integrally formed on the outer wall of the housing 100 by spraying, nano film forming and the like, the forming process of the insulating member 200 is simple, and the thickness of the insulating member 200 is set to be 0.001-0.5mm; or, the insulating member 200 is molded in advance and fixed to the outer wall of the housing 100 by means of gluing, hot melting, clamping, etc., the insulating member 200 is highly convenient to assemble with the housing 100, and the thickness of the insulating member 200 is set to be 0.01-2mm.
As shown in fig. 3, as an embodiment of the insulating member 200, the first insulating main body 210 and the second insulating main body 220 are separated from each other along the width direction of the housing 100, that is, the first insulating main body 210 and the second insulating main body 220 are independent from each other and do not affect each other when being mounted on the housing 100. Specifically, for example, when the insulating member 200 is clamped to the outer wall of the casing 100, when the insulating member 200 is installed on the casing 100, the first insulating main body 210 and the second insulating main body 220 are respectively buckled to the two opposite first walls 120 of the casing 100 from two opposite directions, so that the first insulating main body 210 and the second insulating main body 220 are respectively covered on the two opposite first walls 120 of the casing 100, and the edges of the first insulating main body 210 and the second insulating main body 220 are clamped to the bottom wall 110, the second wall 130 or the top cover 300.
Further, as shown in fig. 4 to 6, the first insulating main body 210 includes a first main body 211 and a first edge 212, the first edge 212 is connected to an outer periphery of the first main body 211 and protrudes toward the second insulating main body 220, the first main body 211 is attached to one of the first walls 120 of the housing 100, and the second wall 130 and/or the bottom wall 110 and/or the top cover 300 is attached with the first edge 212; similarly, the second insulating main body 220 includes a second main body 221 and a second edge 222, the second edge 222 is connected to the outer periphery of the second main body 221 and protrudes toward the first insulating main body 210, the second main body 221 is attached to the other first wall 120 of the housing 100, and the second edge 222 is attached to the second wall 130 and/or the bottom wall 110 and/or the top cover 300.
Thus, the first body portion 211 and the second body portion 221 respectively cover the two opposite first walls 120 of the housing 100, and the first edge portion 212 and the second edge portion 222 are spaced apart in the width direction of the housing 100 and jointly cover the second wall 130 and/or the bottom wall 110 and/or the top cover 300 of the housing 100. Because the first insulating main body 210 and the second insulating main body 220 are arranged at intervals, the second wall 130 and/or the bottom wall 110 of the housing 100 can be exposed to the maximum, a larger bonding area is provided for fixing the single battery, and the improvement of the installation strength of the single battery is facilitated.
Fig. 4 shows the case where the second wall 130, the bottom wall 110 and the top cover 300 of the housing 100 are attached with the first edge portion 212 and the second edge portion 222; fig. 5 shows the case where the first edge portion 212 and the second edge portion 222 are attached to the two opposite second walls 130 of the housing 100; fig. 6 shows a state where the top cover 300 and the bottom wall 110 of the housing 100 are attached with the first edge portion 212 and the second edge portion 222. As shown in fig. 3 and fig. 4, in an embodiment of the present application, the first main body portion 211 and the second main body portion 221 respectively cover two opposite first walls 120 of the casing 100, and the first edge portion 212 and the second edge portion 222 are attached to the second wall 130, the bottom wall 110 and the top cover 300 of the casing 100, so as to ensure that the first walls 120 are completely covered by the first main body portion 211 or the second main body portion 221, and form a good insulation protection for adjacent single batteries.
As shown in fig. 7, as another embodiment of the insulating member 200, the insulating member 200 further includes a connecting portion 230, the connecting portion 230 is disposed along the width direction of the casing 100, two ends of the connecting portion 230 are respectively connected to the first insulating main body 210 and the second insulating main body 220, the connecting portion 230 is attached to the second wall 130 and exposes a portion of the second wall 130, and/or the connecting portion 230 is attached to the bottom wall 110 and exposes a portion of the bottom wall 110, and/or the connecting portion 230 is attached to the top cover 300 and exposes a portion of the top cover 300. In this embodiment, the first insulating main body 210 is connected to the second insulating main body 220 through the connecting portion 230, and when the insulating member 200 is assembled to the housing 100 in a clamping manner, the housing 100 is inserted between the first insulating main body 210 and the second insulating main body 220 to complete the installation of the insulating member 200, thereby improving the coating strength of the insulating member 200 on the housing 100 and the assembly convenience of the two.
In the embodiment of the present application, the connecting portion 230 is attached to the two opposite second walls 130 of the casing 100, the insulating member 200 forms a box-shaped structure with openings at two ends, and the insulating member 200 is sleeved on the casing 100 from top to bottom, so that the insulating member 200 is mounted on the casing 100.
It should be noted that the connecting portion 230 does not completely cover the second wall 130, the bottom wall 110 or the top cover 300, so that a portion of the second wall 130 or the bottom wall 110 is exposed for gluing and fixing the single battery. In addition, the widths of the first edge portion 212 and the second edge portion 222 are less than 50% of the width of the casing 100, so that a gap is formed between the first edge portion 212 and the second edge portion 222, and the second wall 130, the bottom wall 110 or the top cover 300 of the casing 100 is exposed.
As shown in fig. 8, the battery cell further includes a top cover patch 400, and the top cover patch 400 is attached to a side of the top cover 300 opposite to the casing 100 to form a good insulation protection on the top of the battery cell. In addition, a plurality of gaps are formed in the top cover patch 400, and the gaps are used for avoiding parts such as a pole column and an explosion-proof valve of a single battery, so that the flatness of the top cover patch 400 attached to the top cover 300 is guaranteed.
Further, the first edge portion 212 of the first insulating main body 210 and the second edge portion 222 of the second insulating main body 220 are connected to a portion of the top cap patch 400, and the first edge portion 212 and the second edge portion 222 are stacked on the top cap patch 400. Thus, since the first edge portion 212 and the second edge portion 222 are both connected to the top cover patch 400, the insulating member 200 and the top cover patch 400 are combined with each other and jointly perform insulation protection on the housing 100, and the transition region between the first wall 120 of the single battery and the top cover 300 is covered by the first edge portion 212, the second edge portion 222 and the top cover patch 400, so as to achieve a good insulation effect.
The first edge portion 212 and the second edge portion 222 are connected to the edge of the top cover sheet 400, so that the first edge portion 212 and the second edge portion 222 are connected to the top cover sheet 400 in a fitting manner, and the structures such as the electrode post in the single cell, the explosion-proof valve, and the liquid injection hole are avoided. The first edge portion 212 and the top cover patch 400 are stacked, and the first edge portion 212 may be attached to the upper surface of the top cover patch 400, or the top cover patch 400 may be attached to the upper surface of the first edge portion 212; similarly, the second edge portion 222 may be attached to the top surface of the header patch 400, or the header patch 400 may be attached to the top surface of the second edge portion 222.
In one embodiment, the first edge portions 212 are provided in two and connected to the top and bottom of the first main body portion 211, respectively, and the second edge portions 222 are provided in two and connected to the top and bottom of the first main body portion 211, respectively, the first edge portions 212 and the second edge portions 222 being disposed opposite to each other; thus, the first edge portion 212 and the second edge portion 222 are attached to the surface of the top cover patch 400, and are combined with the top cover patch 400 to perform insulation protection on the housing 100. In another embodiment, a plurality of first edge portions 212 and a plurality of second edge portions 222 are disposed, the plurality of first edge portions 212 are sequentially connected and circumferentially disposed on the outer periphery of the first body portion 211, the plurality of second edge portions 222 are sequentially connected and circumferentially disposed on the outer periphery of the second body portion 221, and the first edge portions 212 and the second edge portions 222 are attached to the second wall 130, the bottom wall 110 and the top cover sheet 400. Accordingly, the first and second edge portions 212 and 222 insulate the housing 100 in the entire circumferential direction of the first body portion 211, and are combined with the top cover patch 400 to enhance the insulation effect.
As shown in fig. 9, the insulating member 200 further includes a spacer 240, the spacer 240 is connected to both a side of the first insulating body 210 facing away from the first wall 120 and a side of the second insulating body 220 facing away from the first wall 120, and the spacer 240 is located at an edge of the first wall 120. When the single batteries are arranged along the width direction, the spacing part 240 is positioned between the adjacent single batteries, so that a gap exists between the adjacent single batteries, the gap provides an expansion space for the single batteries, and the working performance of the single batteries is ensured; in addition, in the present invention, the spacers 240 are disposed at the edges of the first wall 120, so that the gaps are formed between the adjacent unit cells, while the spacers 240 located at the edges have the largest degree of expansion in the central region of the first wall 120, and thus the spacers 240 located at the edges are located away from the central region of the first wall 120, thereby having a small influence on the expansion of the unit cells.
The spacing part 240 and the first insulation body 210, and the spacing part 240 and the second insulation body 220 may be integrally formed, or the spacing part 240 is fixed to the surface of the first insulation body 210 or the second insulation body 220 by means of adhesion.
In addition, as shown in fig. 10, the insulating member 200 further includes a plurality of spacers 240, the spacers 240 are connected to both a side of the first insulating main body 210 facing away from the first wall 120 and a side of the second insulating main body 220 facing away from the first wall 120, the plurality of spacers 240 are distributed at intervals and extend toward the second wall 130, and an air channel 250 is defined between adjacent spacers 240. Therefore, the partition 240 can provide an expansion space for the unit cells, and can circulate air between adjacent unit cells through the air duct 250, thereby dissipating heat from the unit cells.
As shown in fig. 11, the present application further provides a battery Pack, such as a CTP (Cell To Pack) battery, including a case 500 and a plurality of the above-mentioned single batteries, where the case 500 includes a first bottom wall 510 and a plurality of first sidewalls 520 connected To the first wall 120 and arranged at intervals, and a space for placing the single batteries is formed between adjacent first sidewalls 520; the single batteries are accommodated in the box body 500, the single batteries are arranged in at least one row along a direction perpendicular to the first walls 120 and are located between the adjacent first walls 120, because part of the bottom wall 110 of the casing 100 and the second wall 130 are exposed, the bottom wall 110 of the single battery can be adhered to the first bottom wall 510 of the box body 500, and the second wall 130 of the single battery can be adhered to the first side wall 520 of the box body 500, so that the single batteries are stably installed in the box body 500, and the adjacent single batteries are ensured to be insulated from each other.
As shown in fig. 12, the present application further provides an electric vehicle, which is suitable for a CTC (Cell To sessions) battery, the electric vehicle includes a frame 600 and a plurality of cells, the frame 600 has a tray 610, the tray 610 includes a second bottom wall 611 and a plurality of second side walls 612 connected To the second bottom wall 611 and arranged at intervals, and a space for placing the cells is formed between adjacent second side walls 612; the single batteries are placed in the tray 610, the single batteries are arranged in at least one row along a direction perpendicular to the first wall 120 and are located between the adjacent second side walls 612, because part of the bottom wall 110 of the casing 100 and the second wall 130 are exposed, the bottom wall 110 of the single battery can be adhered to the second bottom wall 611 of the tray 610, and the second wall 130 of the single battery can be adhered to the second side wall 612 of the tray 610, so that the single batteries are stably installed in the frame 600, and the adjacent single batteries are ensured to be insulated from each other.
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 (11)
1. A battery cell, comprising:
a top cover;
the shell comprises a bottom wall, two oppositely arranged first walls and two oppositely arranged second walls, the area of the first walls is larger than that of the second walls, the two first walls and the two second walls are alternately connected, the bottom wall is respectively connected with the edges of the two first walls and the edges of the two second walls, and the top cover is respectively connected with the edges of one opposite sides of the two first walls and the two second walls;
the insulating part comprises a first insulating main body and a second insulating main body, wherein the first insulating main body and the second insulating main body are respectively covered on the first wall opposite to the shell and expose at least part of the second wall and/or at least part of the bottom wall and/or at least part of the top cover of the shell.
2. The unit cell according to claim 1, wherein the first insulating body and the second insulating body are separated from each other in a width direction of the case.
3. The battery cell as claimed in claim 1, wherein the first insulating body includes a first main portion and a first edge portion, the first edge portion is connected to an outer circumference of the first main portion and protrudes toward the second insulating body, the first main portion is attached to one of the first walls of the housing, and the first edge portion is attached to the second wall and/or the bottom wall and/or the top cover;
the second insulating main body comprises a second main body part and a second edge part, the second edge part is connected to the periphery of the second main body part and protrudes towards the first insulating main body, the second main body part is attached to the other first wall of the shell, and the second wall and/or the bottom wall and/or the top cover is attached with the second edge part.
4. The battery cell as claimed in claim 1, wherein the insulator further comprises a connecting part, two ends of the connecting part are respectively connected with the first insulating body and the second insulating body, and the connecting part is attached to the second wall and exposes a portion of the second wall and/or attached to the bottom wall and exposes a portion of the bottom wall and/or attached to the top cover and exposes a portion of the top cover.
5. The battery cell of claim 1, further comprising a top cover patch attached to a side of the top cover facing away from the housing.
6. The battery cell as claimed in claim 5, wherein the first insulating body includes a first main body portion and a plurality of first edge portions, the first edge portions are sequentially connected to and circumferentially disposed on an outer circumference of the first main body portion, the first edge portions protrude toward the second insulating body, and the first edge portions are attached to the second wall, the bottom wall, and the top cover sheet;
the second insulation main body comprises a second main body part and a plurality of second edge parts, the second edge parts are sequentially connected and annularly arranged on the periphery of the second main body part, the second edge parts face the first insulation main body in a protruding mode, and the second wall, the bottom wall and the top cover patch are attached with the second edge parts.
7. The battery cell as claimed in claim 5, wherein the first insulating body includes a first main body portion and a first edge portion connected to each other, the second insulating body includes a second main body portion and a second edge portion connected to each other, the first main body portion and the second main body portion are respectively attached to the first wall opposite to the housing, the first edge portion and the second edge portion are both connected to a portion of the top cover patch, the first edge portion and the top cover patch are stacked, and the second edge portion and the top cover patch are stacked.
8. The cell defined in claim 1, wherein the insulator further comprises a spacer connected to both a side of the first insulator body facing away from the first wall and a side of the second insulator body facing away from the first wall, the spacer being located at an edge of the first wall.
9. The battery cell as claimed in claim 1, wherein the insulator further comprises a plurality of spacers, the spacers are connected to a side of the first insulating body facing away from the first wall and a side of the second insulating body facing away from the first wall, the spacers are spaced apart and extend toward the second wall, and air vents are defined between adjacent spacers.
10. A battery pack, comprising:
the box body comprises a first bottom wall and a plurality of first side walls which are connected with the first bottom wall and are arranged at intervals;
the single batteries according to any one of claims 1 to 9, wherein the single batteries are accommodated in the box body, the single batteries are arranged in at least one row along a direction perpendicular to the first walls and are positioned between the adjacent first side walls, the bottom walls of the single batteries are adhered to the first bottom walls, and the second walls of the single batteries are adhered to the first side walls.
11. An electric vehicle, characterized by comprising:
the pallet comprises a second bottom wall and a plurality of second side walls which are connected with the second bottom wall and are arranged at intervals;
a plurality of single batteries according to any one of claims 1 to 9, the single batteries being placed in a tray, the single batteries being arranged in at least one row in a direction perpendicular to the first walls and being located between adjacent second side walls, the bottom walls of the single batteries being adhered to the second bottom walls, and the second walls of the single batteries being adhered to the second side walls.
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| CN202222732473.3U CN218788489U (en) | 2022-10-17 | 2022-10-17 | Single battery, battery pack and electric automobile |
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| CN202222732473.3U CN218788489U (en) | 2022-10-17 | 2022-10-17 | Single battery, battery pack and electric automobile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024098898A1 (en) * | 2022-11-08 | 2024-05-16 | 欣旺达动力科技股份有限公司 | Battery cell and electric device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024098898A1 (en) * | 2022-11-08 | 2024-05-16 | 欣旺达动力科技股份有限公司 | Battery cell and electric device |
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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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