CN217387399U - Battery module, power battery and vehicle - Google Patents
Battery module, power battery and vehicle Download PDFInfo
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- CN217387399U CN217387399U CN202123092202.8U CN202123092202U CN217387399U CN 217387399 U CN217387399 U CN 217387399U CN 202123092202 U CN202123092202 U CN 202123092202U CN 217387399 U CN217387399 U CN 217387399U
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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 module, power battery and vehicle, the battery module includes: the battery comprises a plurality of battery cells, a plurality of battery cells and a plurality of battery modules, wherein the battery cells are connected into a power supply unit with a positive electrode lead-out piece and a negative electrode lead-out piece; and one part of the plurality of electric cores is arranged on one side of the thickness direction of the middle plate, the other part of the plurality of electric cores is arranged on the other side of the thickness direction of the middle plate, and the positive electrode lead-out piece and the negative electrode lead-out piece are both led out from the middle plate. According to the utility model discloses a battery module has can improve energy density, reduce cost and weight, advantage such as volume is less.
Description
Technical Field
The utility model belongs to the technical field of the vehicle battery technique and specifically relates to a battery module, power battery and vehicle are related to.
Background
Power battery among the correlation technique has a plurality of battery module, and the both ends of power supply unit are arranged in more to the end of drawing forth of battery module, need set up an end plate respectively at power supply unit's both ends and just can connect positive pole and draw forth the piece with the negative pole and draw forth the piece to connect different battery module, nevertheless battery module's both ends all set up the end plate and can occupy great space, and set up two end plates and still can increase the cost and make power battery's weight heavier, lead to energy density lower.
SUMMERY OF THE UTILITY MODEL
Among the prior art, battery module has energy density lower, and weight is heavier, the big problem of space that occupies, the utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a battery module, this battery module have can improve energy density, reduce cost and weight, advantage such as volume is less.
The utility model also provides a power battery of having above-mentioned battery module.
The utility model also provides a vehicle of having above-mentioned power battery.
In order to achieve the above object, according to the utility model provides a battery module, include: the battery comprises a plurality of battery cells, a plurality of battery cells and a plurality of battery cells, wherein the battery cells are connected into a power supply unit with a positive electrode lead-out piece and a negative electrode lead-out piece; and one part of the plurality of electric cores is arranged on one side of the thickness direction of the middle plate, the other part of the plurality of electric cores is arranged on the other side of the thickness direction of the middle plate, and the positive electrode lead-out piece and the negative electrode lead-out piece are both led out from the middle plate.
According to the utility model discloses a battery module has can improve energy density, reduce cost and weight, advantage such as volume is less.
Further, the intermediate plate is configured with a lead space, and the intermediate plate is provided with a positive electrode lead-in port, a positive electrode lead-out port, a negative electrode lead-in port and a negative electrode lead-out port which are respectively communicated with the lead space; the positive electrode lead-out piece is led into the lead space from the positive electrode lead-in opening and led out of the lead space from the positive electrode lead-out opening, and the negative electrode lead-out piece is led into the lead space from the negative electrode lead-in opening and led out of the lead space from the negative electrode lead-out opening.
Further, the positive electrode lead-out opening and the negative electrode lead-out opening are respectively positioned at two opposite sides of the middle plate, and the positive electrode lead-in opening and the negative electrode lead-in opening are positioned at the same side of the middle plate adjacent to the positive electrode lead-out opening and the negative electrode lead-out opening; the positive electrode lead-out piece and the negative electrode lead-out piece are connected to the surface of the power supply unit on the same side as the positive electrode lead-in opening and the negative electrode lead-in opening.
Furthermore, a separation rib for separating the positive electrode lead-out piece and the negative electrode lead-out piece is arranged in the lead space.
Further, the plurality of cells comprises: a plurality of first cells stacked on the one side in the thickness direction of the intermediate plate in the thickness direction of the first cells; a plurality of second battery cells stacked on the other side in the thickness direction of the intermediate plate along the thickness direction of the second battery cells; the positive electrode lead-out piece is electrically connected to at least one of the first battery cells, and the negative electrode lead-out piece is electrically connected to at least one of the second battery cells.
Further, the plurality of battery cells are connected in series, the positive electrode lead-out piece is electrically connected to one of the plurality of first battery cells which is farthest from the middle plate, and the negative electrode lead-out piece is electrically connected to one of the plurality of second battery cells which is farthest from the middle plate.
Furthermore, the adjacent battery cells are electrically connected through connecting sheets; each of the plurality of battery cells except for the battery cells connected with the positive electrode lead-out piece and the negative electrode lead-out piece is electrically connected with the battery cell on one adjacent side through one connecting piece at one end in the length direction, and is electrically connected with the battery cell on the other adjacent side through the other connecting piece at the other end in the length direction; one end of the battery cell in the length direction is electrically connected with the adjacent battery cell through one connecting sheet, and the other end of the battery cell in the length direction is electrically connected with the positive electrode lead-out sheet; and one end of the battery cell in the length direction is electrically connected with the adjacent battery cell through one connecting sheet, and the other end of the battery cell in the length direction is electrically connected with the negative electrode leading-out sheet.
Further, the positive lead-out piece sequentially comprises a positive connection section, a positive extension section, a positive lead-in section and a positive lead-out section along the length direction of the positive lead-out piece, the positive connection section extends along the length direction of the first electric core and is electrically connected with the first electric core, the positive extension section extends along the thickness direction of the first electric core, the positive lead-in section extends along the width direction of the first electric core and extends into the middle plate, the positive lead-out section extends along the length direction of the first electric core, one part of the positive lead-out section is located in the middle plate, and the other part of the positive lead-out section is led out of the middle plate; the negative pole lead-out piece sequentially comprises a negative pole connecting section, a negative pole extending section, a negative pole leading-in section and a negative pole leading-out section along the length direction of the negative pole lead-out piece, the negative pole connecting section extends along the length direction of the second electric core and is electrically connected with the second electric core, the negative pole extending section extends along the thickness direction of the second electric core, the negative pole leading-in section extends along the width direction of the second electric core and extends into the middle plate, the negative pole leading-out section extends along the length direction of the second electric core, one part of the negative pole leading-out section is located in the middle plate, and the other part of the negative pole leading-out section leads out the middle plate.
According to the utility model discloses a power battery includes: a tray; according to the utility model discloses an it is foretell battery module, battery module locates in the tray.
According to the utility model discloses a power battery, through utilizing according to the utility model discloses an foretell battery module has can improve energy density, reduce cost and weight, advantage such as volume is less.
Furthermore, the battery modules are multiple, the positive electrode lead-out piece and the negative electrode lead-out piece of each battery module are respectively led out from two opposite sides of the battery module where the positive electrode lead-out piece and the negative electrode lead-out piece are located, and in the leading-out direction of the positive electrode lead-out piece and the negative electrode lead-out piece, the positive electrode lead-out piece of one of the two adjacent battery modules is electrically connected with the negative electrode lead-out piece of the other battery module.
Furthermore, at least one vertical plate is arranged in the tray, and each battery module is clamped between two vertical plates or between the vertical plate and the side wall of the tray.
According to the utility model discloses a vehicle includes: according to the utility model discloses foretell power battery.
According to the utility model discloses a vehicle, through utilizing according to the utility model discloses foretell power battery has improvement energy density, reduce cost and weight, reduces advantages such as volume.
Additional aspects and advantages of the invention 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 invention.
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 structural diagram of a power battery according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a tray and a battery module according to an embodiment of the present invention;
fig. 3 is a schematic arrangement diagram of a battery module according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a battery module according to an embodiment of the present invention.
Reference numerals:
A positive electrode tab 112, a negative electrode tab 113,
A positive electrode inlet 121, a positive electrode outlet 122, a negative electrode inlet 123, a negative electrode outlet 124,
A power supply unit 110, a spacer bar 125,
A first electric core 114, a second electric core 115, a connecting sheet 116, a positive electrode connecting section 1121, a positive electrode extending section 1122, a positive electrode leading-in section 1123, a positive electrode leading-out section 1124, a negative electrode connecting section 1131, a negative electrode extending section 1132,
A negative lead-in section 1133, and a negative lead-out section 1134.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like 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 invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.
In the description of the present invention, "a plurality" means two or more.
The following describes a battery module 100 according to an embodiment of the present invention with reference to the drawings.
As shown in fig. 1 to 4, a battery module 100 according to an embodiment of the present invention includes a plurality of battery cells 111 and a middle plate 120.
A plurality of cells 111 are connected to form a power supply unit 110 having a positive electrode tab 112 and a negative electrode tab 113.
A part of the plurality of battery cells 111 is provided on one side of the intermediate plate 120 in the thickness direction, another part of the plurality of battery cells 111 is provided on the other side of the intermediate plate 120 in the thickness direction, and the positive electrode tab 112 and the negative electrode tab 113 are both led out from the intermediate plate 120.
For example, the plurality of battery cells 111 are stacked in the thickness direction thereof, and the middle plate 120 is flush with the edges of the plurality of battery cells 111 in the length and width directions. For example, each battery module 100 has 12 cells 111, the middle plate 120 separates the cell 111 having the positive electrode tab 112 from the cell 111 having the negative electrode tab 113, and the positive electrode tab 112 and the negative electrode tab 113 are led out from the middle of the power supply unit 110, the positive electrode tab 112 and the negative electrode tab 113 may be copper bars, and the plurality of cells 111 are connected in series with each other and electrically connected to the positive electrode tabs 112 and the negative electrode tabs 113 of other battery modules 100 through the positive electrode tabs 112 and the negative electrode tabs 113 to supply power to the vehicle.
According to the utility model discloses battery module 100 through only adopting a intermediate lamella 120 to set up between electric core 111 that has positive pole to draw piece 112 and electric core 111 that has negative pole to draw piece 113, the positive pole of power supply unit 110 is drawn piece 112 and negative pole and is drawn piece 113 from intermediate lamella 120 to realize being connected with other battery module 100. Compare traditional battery module, shift the end of drawing forth of battery module 100 to between a plurality of electric cores 111 by both sides, optimized battery module 100 and drawn forth arranging of end, battery module 100 draws forth the positive pole of end and draws forth piece 112 and negative pole and draw forth the position of piece 113 and concentrate more. And the number of end plates is reduced by reducing the two end plates to one middle plate 120, thereby reducing the cost of the battery module 100. And the size of the battery module 100 in the thickness direction of the single battery cell 111 is reduced, thereby increasing the energy density of the battery module 100.
Therefore, according to the present invention, the battery module 100 has the advantages of improving the energy density, reducing the cost and weight, reducing the volume, etc.
The intermediate plate 120 may be made of AL6061 aluminum alloy, and has a light weight and a sufficiently high structural strength. The thickness of the middle plate 120 may be selected from 5mm to 50mm, and the thickness of the middle plate 120 is determined according to different battery modules 100. Of course, the middle plate 120 may also be made of high-strength steel, plastic, or the like, and may be selected according to actual use requirements.
In some embodiments of the present invention, as shown in fig. 4, the middle plate 120 is configured with a lead space, and the middle plate 120 is provided with a positive electrode introduction port 121, a positive electrode lead-out port 122, a negative electrode introduction port 123 and a negative electrode lead-out port 124 which are respectively communicated with the lead space.
The positive electrode tab 112 is drawn into the lead space from the positive electrode lead-in opening 121 and drawn out from the positive electrode lead-out opening 122, and the negative electrode tab 113 is drawn into the lead space from the negative electrode lead-in opening 123 and drawn out from the negative electrode lead-out opening 124.
Wherein, the lead space, the positive lead-in opening 121, the positive lead-out opening 122, the negative lead-out opening 124 and the negative lead-out opening 124 can be formed by numerical control processing, the positive lead-in opening 121, the positive lead-out opening 122, the negative lead-out opening 123 and the negative lead-out opening 124 can be configured to be rectangular, the positive lead-in opening 121 and the positive lead-out opening 122 are suitable for the positive lead-out piece 112 to pass through, and the negative lead-out opening 123 and the negative lead-out opening 124 are suitable for the negative lead-out piece 113 to pass through. By configuring the middle plate 120 to form a lead-out space, channels through which the positive electrode lead-out piece 112 and the negative electrode lead-out piece 113 are led in and out at the middle plate 120 are formed. The positive electrode lead-out sheet 112 and the negative electrode lead-out sheet 113 are more neatly arranged.
Further, as shown in fig. 4, the positive electrode lead-out opening 122 and the negative electrode lead-out opening 124 are respectively located on opposite sides of the middle plate 120, and the positive electrode lead-in opening 121 and the negative electrode lead-in opening 123 are located on the same side of the middle plate 120 adjacent to the positive electrode lead-out opening 122 and the negative electrode lead-out opening 124.
The positive electrode lead-out piece 112 and the negative electrode lead-out piece 113 are connected to the surface of the power supply unit 110 on the same side as the positive electrode lead-in opening 121 and the negative electrode lead-in opening 123.
The positive electrode lead-in opening 121 and the negative electrode lead-out opening 124 are positioned on the same side of the middle plate 120, so that the positive electrode lead-out piece 112 and the negative electrode lead-out piece 113 can be conveniently led into the positive electrode lead-in opening 121 and the negative electrode lead-in opening 123 from the same side. And the positive electrode lead-out opening 122 and the negative electrode lead-out opening 124 are positioned at opposite sides of the middle plate 120, so that the positive electrode lead-out piece 112 and the negative electrode lead-out piece 113 can extend out of the middle plate 120 in opposite directions, so that the positive electrode lead-out piece 112 extending from the positive electrode lead-out opening 122 can be electrically connected with the negative electrode lead-out piece 113 of the adjacent battery module 100, and the negative electrode lead-out piece 113 extending from the negative electrode lead-out opening 124 can be electrically connected with the positive electrode lead-out piece 112 of the adjacent battery module 100.
In some embodiments of the present invention, as shown in fig. 4, a spacer 125 for separating the positive electrode tab 112 and the negative electrode tab 113 is disposed in the lead space.
The separator 125 separates the positive electrode tab 112 from the negative electrode tab 113, thereby preventing the positive electrode tab 112 and the negative electrode tab 113 of the same battery module from contacting each other and causing short circuit. And the partition rib 125 can separate the positive lead-in port 121 and the negative lead-in port 123, and can respectively define accurate lead-out paths for the positive lead-out piece 112 and the negative lead-out piece 113, so as to avoid the positive lead-out piece 112 and the negative lead-out piece 113 from being staggered and contacted, and further ensure the regular arrangement of the positive lead-out piece 112 and the negative lead-out piece 113.
In some embodiments of the present invention, as shown in fig. 4, the plurality of battery cells 111 includes a plurality of first battery cells 114 and a plurality of second battery cells 115.
The plurality of first cells 114 are stacked on one side of the intermediate plate 120 in the thickness direction of the first cells 114. The plurality of second cells 115 are stacked on the other side in the thickness direction of the intermediate plate 120 in the thickness direction of the second cells 115.
The positive electrode tab 112 is electrically connected to at least one of the first cells 114, and the negative electrode tab 113 is electrically connected to at least one of the second cells 115.
Further, as shown in fig. 4, the plurality of battery cells 111 are connected in series, the positive electrode tab 112 is electrically connected to one of the plurality of first battery cells 114 that is farthest from the middle plate 120, and the negative electrode tab 113 is electrically connected to one of the plurality of second battery cells 115 that is farthest from the middle plate 120.
In some embodiments of the present invention, the adjacent cells 111 are electrically connected through the connecting sheet 116. Each of the plurality of cells 111 except for the cells 111 connected to the positive electrode lead-out piece 112 and the negative electrode lead-out piece 113 has one end in the longitudinal direction electrically connected to the cell 111 on the adjacent side via one connection piece 116, and has the other end in the longitudinal direction electrically connected to the cell 111 on the adjacent other side via another connection piece 116.
One end of the cell 111 connected to the positive electrode lead-out piece 112 in the longitudinal direction is electrically connected to the adjacent cell 111 by a connecting piece 116, and the other end in the longitudinal direction is electrically connected to the positive electrode lead-out piece 112. One end of the cell 111 connected to the negative electrode lead-out piece 113 in the longitudinal direction is electrically connected to the adjacent cell 111 by a connecting piece 116, and the other end in the longitudinal direction is electrically connected to the negative electrode lead-out piece 113.
The first battery cell 114 and the second battery cell 115 adjacent to each other are also electrically connected by the connecting sheet 116, the electrical connecting sheet 116 connecting the first battery cell 114 and the second battery cell 115 crosses the middle plate 120, and the width of the electrical connecting sheet 116 connecting the first battery cell 114 and the second battery cell 115 is wider than the other connecting sheets 116. Each adjacent battery cell 111 is electrically connected through the connecting sheet 116, and after the positive electrode lead-out sheet 112 and the negative electrode lead-out sheet 113 are electrified, each battery cell 111 is connected in series through the connecting sheet 116, so that power supply of the battery module 100 is realized. And the connecting pieces 116 are staggered at two ends of the battery cell 111 in the length direction, so that interference of the connecting pieces 116 can be avoided, and the arrangement of the connecting pieces 116 is more compact.
In some specific embodiments of the present invention, as shown in fig. 4, the positive electrode lead-out piece 112 sequentially includes a positive electrode connection section 1121, a positive electrode extension section 1122, a positive electrode lead-in section 1123 and a positive electrode lead-out section 1124 along the length direction thereof, the positive electrode connection section 1121 extends along the length of the first electric core 114 and is electrically connected to the first electric core 114, the positive electrode extension section 1122 extends along the thickness direction of the first electric core 114, the positive electrode lead-in section 1123 extends along the width direction of the first electric core 114 and extends into the middle plate 120, the positive electrode lead-out section 1124 extends along the length direction of the first electric core 114, a part of the positive electrode lead-out section 1124 is located in the middle plate 120, and another part of the positive electrode lead-out section 1124 leads out the middle plate 120.
The negative lead-out piece 113 sequentially comprises a negative connection section 1131, a negative extension section 1132, a negative lead-in section 1133 and a negative lead-out section 1134 along the length direction of the negative lead-out piece, the negative connection section 1131 extends along the length direction of the second battery cell 115 and is electrically connected with the second battery cell 115, the negative extension section 1132 extends along the thickness direction of the second battery cell 115, the negative lead-in section 1133 extends along the width direction of the second battery cell 115 and extends into the middle plate 120, the negative lead-out section 1134 extends along the length direction of the second battery cell 115, one part of the negative lead-out section 1134 is located in the middle plate 120, and the other part of the negative lead-out section 1134 is led out of the middle plate 120.
For example, the positive electrode tab 112 and the negative electrode tab 113 are folded or bent to form a turning direction, and the bent portion is made of soft copper bars, so that the thickness is small and the bending is easy. Specifically, the positive electrode connecting section 1121 and the positive electrode extending section 1122 are completely folded by the positive electrode tab 112 to turn 90 °, the negative electrode connecting section 1131 and the negative electrode extending section 1132 are completely folded by the negative electrode tab 113 to turn 90 °, the positive electrode connecting section 1121 and the positive electrode extending section 1122 are both attached to the surface of the first battery cell 114, and the negative electrode connecting section 1131 and the negative electrode extending section 1132 are both attached to the surface of the second battery cell 115. The extending direction of the positive electrode connecting section 1121 is perpendicular to the extending direction of the positive electrode extending section 1122, and the extending direction of the negative electrode connecting section 1131 is perpendicular to the extending direction of the negative electrode extending section 1132, so that the positive electrode lead-out piece 112 is led to the positive electrode lead-in opening 121, and the negative electrode lead-out piece 113 is led to the negative electrode lead-in opening 123.
The positive electrode extension 1122 and the positive electrode lead-in section 1123 are bent by the bent portion of the positive electrode lead-out piece 112 to turn toward one side in the thickness direction of the positive electrode lead-out piece 112, and the negative electrode extension 1132 and the negative electrode lead-in section 1133 are bent by the bent portion of the negative electrode lead-out piece 113 to turn toward one side in the thickness direction of the negative electrode lead-out piece 113. The positive electrode lead-in section 1123 and the negative electrode lead-in section 1133 are accommodated in the lead space and are separated by the spacer ribs 125, and the arrangement of the positive electrode lead-in section 1123 and the negative electrode lead-in section 1133 is more orderly.
The positive electrode lead-in section 1123 and the positive electrode lead-out section 1124 are turned to 90 ° by the positive electrode lead-out piece 112 being completely folded, and the negative electrode lead-in section 1133 and the negative electrode lead-out section 1134 are turned to 90 ° by the negative electrode lead-out piece 113 being completely folded. The positive lead-out section 1123 and the negative lead-out section 1124 may lead out of the middle plate 120 toward opposite directions.
The power battery 1 according to an embodiment of the present invention is described below.
As shown in fig. 1 and fig. 2, according to the power battery 1 of the embodiment of the present invention, including the tray 200 and the battery module 100 according to the embodiment of the present invention, the battery module 100 is disposed in the tray 200.
For example, the battery module 100 is fixed to the tray 200 by applying a thermal conductive adhesive on the bottom surface of the battery cell 111. According to the utility model discloses power battery 1, through adopting according to the utility model discloses above-mentioned embodiment's battery module 100 has the advantage such as improve energy density, reduce cost and weight, reduce volume.
As shown in fig. 3, in some embodiments of the present invention, the number of the battery modules 100 is plural, the positive lead-out piece 112 and the negative lead-out piece 113 of each battery module 100 are respectively led out from two opposite sides of the battery module 100, and in the leading-out direction of the positive lead-out piece 112 and the negative lead-out piece 113, the positive lead-out piece 112 of one of the two adjacent battery modules 100 is electrically connected to the negative lead-out piece 113 of the other.
For example, the positive electrode tab 112 of two adjacent battery modules 100 and the negative electrode tab 113 of the other are configured as a hard copper bar, and are integrally mounted by welding or fastening members, so that the connection firmness is ensured.
So, every battery module 100 can establish ties in proper order, and neatly arranges in tray 200, and every battery module 100 sets up only a intermediate lamella 120 along electric core 111's thickness direction, and the volume of battery module 100 has obtained reducing to power battery 1's structure is compacter, and then has promoted power battery 1's energy density.
In some embodiments of the present invention, at least one vertical plate 210 is disposed in the tray 200, and each battery module 100 is clamped between two vertical plates 210 or between the vertical plate 210 and the sidewall of the tray 200.
For example, the intermediate plate 120 may not be fixed to the tray 200, and may be held by the power supply unit 110 having the positive electrode tab 112, thereby eliminating a need for a structure for mounting the intermediate plate 120 and reducing costs. Of course, the vertical plate 210 may be mounted to the tray 200 by a fastener, thereby ensuring sufficient structural strength of the battery module 100 and the tray 200.
A vehicle according to an embodiment of the present invention is described below.
According to the utility model discloses the vehicle, include according to the utility model discloses power battery 1 of above-mentioned embodiment.
According to the utility model discloses vehicle, through adopting according to the utility model discloses power battery 1 of above-mentioned embodiment has can improve energy density, reduce cost and weight, advantage such as volume is less.
Other configurations and operations of the battery module 100, the power battery 1, and the vehicle 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 present invention. 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 present invention 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 invention, the scope of which is defined by the claims and their equivalents.
Claims (12)
1. A battery module, comprising:
the battery comprises a plurality of battery cells, a plurality of battery cells and a plurality of battery cells, wherein the battery cells are connected into a power supply unit with a positive electrode lead-out piece and a negative electrode lead-out piece;
and one part of the plurality of battery cells is arranged on one side of the thickness direction of the middle plate, the other part of the plurality of battery cells is arranged on the other side of the thickness direction of the middle plate, and the positive electrode lead-out piece and the negative electrode lead-out piece are both led out from the middle plate.
2. The battery module according to claim 1, wherein the intermediate plate is configured with a lead space, and the intermediate plate is provided with a positive electrode introduction port, a positive electrode lead-out port, a negative electrode introduction port, and a negative electrode lead-out port, which are respectively communicated with the lead space;
the positive electrode lead-out piece is led into the lead space from the positive electrode lead-in opening and led out of the lead space from the positive electrode lead-out opening, and the negative electrode lead-out piece is led into the lead space from the negative electrode lead-in opening and led out of the lead space from the negative electrode lead-out opening.
3. The battery module according to claim 2, wherein the positive electrode lead-out opening and the negative electrode lead-out opening are respectively located at opposite sides of the middle plate, and the positive electrode lead-in opening and the negative electrode lead-in opening are located at the same side of the middle plate adjacent to the positive electrode lead-out opening and the negative electrode lead-out opening;
the positive electrode lead-out piece and the negative electrode lead-out piece are connected to the surface of the power supply unit on the same side as the positive electrode lead-in opening and the negative electrode lead-in opening.
4. The battery module according to claim 2, wherein a spacer rib is provided in the lead space to separate the positive electrode tab and the negative electrode tab.
5. The battery module of claim 1, wherein the plurality of cells comprises:
a plurality of first cells stacked on the one side in the thickness direction of the intermediate plate in the thickness direction of the first cells;
a plurality of second battery cells stacked on the other side in the thickness direction of the intermediate plate along the thickness direction of the second battery cells;
the positive electrode lead-out piece is electrically connected to at least one of the first battery cells, and the negative electrode lead-out piece is electrically connected to at least one of the second battery cells.
6. The battery module of claim 5, wherein the plurality of cells are connected in series, the positive lead tab is electrically connected to the first cell with the farthest distance from the middle plate, and the negative lead tab is electrically connected to the second cell with the farthest distance from the middle plate.
7. The battery module according to claim 6, wherein adjacent cells are electrically connected through connecting sheets;
each of the plurality of battery cells except for the battery cells connected with the positive electrode lead-out piece and the negative electrode lead-out piece is electrically connected with the battery cell on one adjacent side through one connecting piece at one end in the length direction, and is electrically connected with the battery cell on the other adjacent side through the other connecting piece at the other end in the length direction;
one end of the battery cell in the length direction is electrically connected with the adjacent battery cell through one connecting sheet, and the other end of the battery cell in the length direction is electrically connected with the positive electrode lead-out sheet;
and one end of the battery cell in the length direction is electrically connected with the adjacent battery cell through one connecting sheet, and the other end of the battery cell in the length direction is electrically connected with the negative electrode leading-out sheet.
8. The battery module of claim 6, wherein the positive electrode lead-out piece sequentially comprises a positive electrode connecting section, a positive electrode extending section, a positive electrode lead-in section and a positive electrode lead-out section along a length direction of the positive electrode lead-out piece, the positive electrode connecting section extends along the length direction of the first battery cell and is electrically connected with the first battery cell, the positive electrode extending section extends along a thickness direction of the first battery cell, the positive electrode lead-in section extends along a width direction of the first battery cell and extends into the middle plate, the positive electrode lead-out section extends along the length direction of the first battery cell, a part of the positive electrode lead-out section is located in the middle plate, and another part of the positive electrode lead-out section leads out of the middle plate;
the negative pole leading-out piece sequentially comprises a negative pole connecting section, a negative pole extending section, a negative pole leading-in section and a negative pole leading-out section along the length direction of the negative pole leading-out piece, the negative pole connecting section extends along the length direction of the second electric core and is electrically connected with the second electric core, the negative pole extending section extends along the thickness direction of the second electric core, the negative pole leading-in section extends along the width direction of the second electric core and extends into the middle plate, the negative pole leading-out section extends along the length direction of the second electric core, one part of the negative pole leading-out section is located in the middle plate, and the other part of the negative pole leading-out section leads out the middle plate.
9. A power cell, comprising:
a tray;
the battery module according to any one of claims 1 to 8, which is provided in the tray.
10. The power battery according to claim 9, wherein the number of the battery modules is multiple, the positive electrode tab and the negative electrode tab of each battery module are respectively led out from two opposite sides of the battery module, and in the leading-out direction of the positive electrode tab and the negative electrode tab, the positive electrode tab of one of the two adjacent battery modules is electrically connected with the negative electrode tab of the other battery module.
11. The power battery as claimed in claim 10, wherein at least one vertical plate is arranged in the tray, and each battery module is clamped between two vertical plates or between a vertical plate and a side wall of the tray.
12. A vehicle, characterized by comprising: the power cell of any of claims 9-11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123092202.8U CN217387399U (en) | 2021-12-09 | 2021-12-09 | Battery module, power battery and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123092202.8U CN217387399U (en) | 2021-12-09 | 2021-12-09 | Battery module, power battery and vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN217387399U true CN217387399U (en) | 2022-09-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123092202.8U Active CN217387399U (en) | 2021-12-09 | 2021-12-09 | Battery module, power battery and vehicle |
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| Country | Link |
|---|---|
| CN (1) | CN217387399U (en) |
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2021
- 2021-12-09 CN CN202123092202.8U patent/CN217387399U/en active Active
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| TR01 | Transfer of patent right |
Effective date of registration: 20230110 Address after: No. 3009, BYD Road, Pingshan District, Shenzhen, Guangdong 518118 Patentee after: BYD Co.,Ltd. Patentee after: Shaoxing Fudi Battery Co.,Ltd. Address before: No. 3009, BYD Road, Pingshan District, Shenzhen, Guangdong 518118 Patentee before: BYD Co.,Ltd. |