CN211980796U - Laminate polymer battery and vehicle - Google Patents
Laminate polymer battery and vehicle Download PDFInfo
- Publication number
- CN211980796U CN211980796U CN202020716529.4U CN202020716529U CN211980796U CN 211980796 U CN211980796 U CN 211980796U CN 202020716529 U CN202020716529 U CN 202020716529U CN 211980796 U CN211980796 U CN 211980796U
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- battery
- direct connection
- liquid cooling
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- cooling plate
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The utility model discloses a laminate polymer battery and vehicle. The soft package battery comprises a battery module and a cooling device, wherein the battery module comprises at least one layer of battery direct connection group layer, each layer of battery direct connection group layer comprises at least two battery direct connection groups which are arranged side by side, each battery direct connection group comprises one or more battery cell stacking bodies which are connected in series, and every two adjacent battery direct connection groups which are arranged side by side are connected through first tab supports at two ends of each battery direct connection group; the cooling device comprises a heat conducting adhesive and a liquid cooling plate, the liquid cooling plate is a wave-shaped bent plate or a Z-shaped bent plate, the liquid cooling plate is uniformly arranged between any two adjacent batteries which are arranged side by side in each layer of battery direct connection group layer, and the heat conducting adhesive is filled between the battery direct connection group and the liquid cooling plate. This laminate polymer battery improves heat conduction efficiency simultaneously from the arrangement mode and the liquid cooling plate structure of liquid cooling plate, and not only the cooling effect is good but also battery inner structure is more simple.
Description
Technical Field
The utility model belongs to the power battery field particularly, relates to laminate polymer battery and vehicle.
Background
At present, the liquid cooling battery module is widely applied, and a plurality of environmental protection industries including new energy automobiles adopt the liquid cooling battery module to provide power. Therefore, the performance of the liquid-cooled battery module directly determines the performance of the equipment using the liquid-cooled battery module as a power source. The design degree of difficulty of laminate polymer battery liquid cooling system is big, often adopts heat-conducting plate contact laminate polymer battery, and a heat-conducting plate of electric core or two electric cores of a heat-conducting plate contact shares, and the heat-conducting plate is derived the heat of electric core from electric core thickness direction, and this kind of mode not only heat conduction efficiency is low, still can increase battery weight, and electric core quantity is more, and heat-conducting plate quantity is more, and the equipment is also complicated more. In addition, the height of a battery pack is expected to be reduced continuously in the industry at present, but the traditional soft-package battery is often assembled in a standing mode, so that the height of the module is often higher, and the height cannot be reduced due to various requirements of the manufacturing process, the cost and the like of the soft-package battery, and the requirement of reducing the height of a battery system is difficult to adapt.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the related art to a certain extent. To this end, an object of the utility model is to propose laminate polymer battery and vehicle. This laminate polymer battery improves heat conduction efficiency simultaneously from the arrangement mode and the liquid cooling plate structure of liquid cooling plate, and not only the cooling effect is good, and battery inner structure is more simple and the equipment degree of difficulty is little moreover, the demand that highly reduces of adaptation battery system that can be better.
According to the utility model discloses a first aspect, the utility model provides a laminate polymer battery. According to the utility model discloses an embodiment, this laminate polymer battery includes:
the battery module comprises at least one layer of battery direct connection group layer, each layer of battery direct connection group layer comprises at least two battery direct connection groups arranged side by side, each battery direct connection group comprises one battery cell stack body or a plurality of battery cell stack bodies connected in series, two ends of each battery direct connection group are respectively and independently provided with a first tab support, and two adjacent battery direct connection groups arranged side by side are connected through the first tab supports;
cooling device, cooling device include heat-conducting glue and with the liquid cooling board, the liquid cooling board is wave bent board or zigzag bent board, every layer arbitrary two adjacent and arrange side by side in the group layer is directly connected to the battery equal fixed arrangement between the group have the liquid cooling board, heat-conducting glue is filled the battery directly link the group with between the liquid cooling board, the liquid cooling board is at the perpendicular to the distance on the group length direction is directly connected to the battery and adjacent two arrange side by side the battery directly links the distance ratio between the group and is (0.1 ~ 0.8): 1.
the utility model discloses above-mentioned embodiment's laminate polymer battery has following advantage at least: 1) the battery cells are in a flat-lying mode, each battery cell stacking body can respectively and independently comprise a plurality of parallel battery cells stacked along the height direction of the soft-package battery, and therefore the height requirement of the battery pack can be met by adjusting the stacking thickness of the plurality of layers of flat-lying battery cells in the battery cell stacking body and the number of layers of the direct battery pack; 2) the cooling adopts a mode that the heat-conducting glue is directly filled in the gap between the liquid cooling plate and the battery cell stacking body to directly contact the battery cell, so that the cooling efficiency is higher; 3) when two adjacent battery direct-connecting groups arranged side by side are connected, the liquid cooling plate can be pressed between the two battery direct-connecting groups, the heat-conducting glue, the liquid cooling plate and the battery core are uniformly and tightly attached, a gap between the battery core and the liquid cooling plate is eliminated, and parts for supporting and fixing the liquid cooling plate are reduced or avoided, so that the cost of the battery can be reduced and the internal structure of the battery can be simplified; 4) by controlling the position relationship between the liquid cooling plate and the two adjacent battery direct-connection groups, the full contact and heat transfer effect between the liquid cooling plate and the battery core can be prevented from being influenced due to too little heat-conducting glue, and the heat transfer quantity in unit time can be prevented from being influenced due to too thin liquid cooling plate, so that the cooling efficiency and the cooling effect of the cooling device on the battery core can be further improved; 5) only one liquid cooling plate is arranged in two adjacent battery direct-connection groups arranged in parallel, so that the heat of the multilayer battery core can be quickly led out, the internal structure of the battery is simpler, and the overall weight is lighter; 6) the liquid cooling plate adopts a wavy or zigzag bent plate, so that the contact area of the liquid cooling plate and the heat conducting glue and the flowing interval of cooling liquid in the liquid cooling plate can be further increased, the heat conducting efficiency can be further increased, and the cooling effect can be improved. Compared with the prior art, the soft package battery simultaneously improves the heat conduction efficiency from the arrangement mode of the liquid cooling plate and the liquid cooling plate structure, not only has good cooling effect, but also has simpler internal structure of the battery and small assembly difficulty, and can better meet the requirement of highly reducing the battery system.
In addition, according to the utility model discloses pouch battery of above-mentioned embodiment can also have following additional technical characterstic:
optionally, a first connecting hole is formed in the first tab support, a through hole corresponding to the first connecting hole is formed in the liquid cooling plate, and the liquid cooling plate is connected with the battery direct connection set through the through hole and the first connecting hole.
Optionally, a second tab support is arranged between two adjacent battery cell stacking bodies connected in series in the battery direct connection group, and two adjacent battery direct connection group layers are connected through the first tab support and/or the second tab support.
Optionally, a second connecting hole is formed in the second pole ear support, and at least one first protrusion connected with the second connecting hole in a matched mode is arranged on the liquid cooling plate.
Optionally, the arrangement modes and the number of the battery direct connection groups in each layer of the battery direct connection group layer are the same, and two adjacent rows of the battery direct connection groups arranged side by side in the plurality of layers of the battery direct connection group layer share one liquid cooling plate.
Optionally, the liquid-cooled plate has a plurality of coolant channels disposed therein, the plurality of coolant channels sharing one of the coolant inlets and one of the coolant outlets.
Optionally, in the height direction of the battery module, heat insulation foam is independently arranged between two adjacent battery cell stacked bodies.
Optionally, the pouch battery further comprises: two guard plates, establish respectively two guard plates the lower surface of battery module with the upper surface of battery module, with every of guard plate contact electric core pile body with be equipped with thermal-insulated bubble cotton respectively independently between the guard plate.
Optionally, a third connecting hole is formed in the first tab support, a fourth connecting hole is formed in the second tab support, and a fifth connecting hole or a second protrusion corresponding to the third connecting hole and/or the fourth connecting hole is independently formed in each protection plate.
According to a second aspect of the present invention, the utility model provides a vehicle. According to the utility model discloses an embodiment, this vehicle includes foretell laminate polymer battery. Power battery's radiating effect is good and light in weight in this vehicle, and the duration is more stable.
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 pouch battery having one layer of battery direct connection stack according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a single layer direct battery stack layer according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a battery direct connection set, a conductive adhesive and a liquid cooling plate according to an embodiment of the present invention.
Fig. 4 is a schematic structural view of a liquid-cooled panel according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a position where the thermal insulation foam is disposed according to an embodiment of the present invention.
Fig. 6 is a side view of a pouch battery having one direct battery pack layer according to an embodiment of the present invention.
Fig. 7 is a cross-sectional view along a-a according to fig. 6.
Fig. 8 is a schematic structural diagram of a guard plate according to an embodiment of the present invention.
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 and intended to be used for 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", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship 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. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
According to the utility model discloses a first aspect, the utility model provides a laminate polymer battery. According to the utility model discloses an embodiment, it is shown with reference to fig. 1 ~ 4, this laminate polymer battery includes: a battery module and a cooling device 200. The battery module comprises at least one layer of battery direct connection group layer 100, each layer of battery direct connection group layer 100 comprises at least two battery direct connection groups 110 arranged side by side, each battery direct connection group 110 comprises one battery cell stack body 111 or comprises a plurality of battery cell stack bodies 111 connected in series, two ends of each battery direct connection group 110 are respectively and independently provided with a first tab support 112, and two adjacent battery direct connection groups 110 arranged side by side are connected through the first tab supports 112; the cooling device 200 comprises heat conducting glue 210 and a liquid cooling plate 220, the liquid cooling plate 220 is a wave-shaped bent plate or a zigzag bent plate, the liquid cooling plate 220 is uniformly arranged between any two adjacent batteries arranged side by side in each layer of battery direct connection group layer 100 and the battery direct connection group 110, the heat conducting glue 210 is filled between the battery direct connection group 110 and the liquid cooling plate 220, and the distance ratio of the liquid cooling plate 220 in the length direction perpendicular to the battery direct connection group 110 to the distance between the two adjacent batteries arranged side by side and the battery direct connection group 110 is (0.1-0.8): 1. this laminate polymer battery improves heat conduction efficiency simultaneously from the arrangement mode and the liquid cooling plate structure of liquid cooling plate, and not only the cooling effect is good, and battery inner structure is more simple and the equipment degree of difficulty is little moreover, the demand that highly reduces of adaptation battery system that can be better.
The pouch battery according to the above embodiment of the present invention will be described in detail with reference to fig. 1 to 8.
According to a specific embodiment of the present invention, as shown in fig. 4 and 5, the first tab holder 112 may be provided with a first connection hole 113, the liquid cooling plate 220 may be provided with a through hole 223 corresponding to the first connection hole 113 at a position adjacent to the end of the battery direct connection group 110, and the liquid cooling plate 220 is connected to the battery direct connection group 110 through the through hole 223 and the first connection hole 113. Therefore, the liquid cooling plate can be further positioned by utilizing the first tab support, so that the liquid cooling plate is fixed between two adjacent battery direct connection groups arranged side by side, and the stability between the liquid cooling plate and the battery direct connection groups is further improved on the basis of not increasing additional fixing accessories; the gap distance between the liquid cooling plate and the battery direct connection group and the tight fit degree between the liquid cooling plate, the conductive adhesive and the battery core can also be adjusted by adjusting the tightness degree of the first tab support in connection, so that the heat conduction efficiency is further improved.
According to the utility model discloses a still another embodiment, the battery directly links to be equipped with second utmost point ear support 114 between two adjacent series connection's electric core stack 111 in group 110, and adjacent two-layer battery directly links to each other group layer 100 through first utmost point ear support 112 and/or second utmost point ear support 114. In addition, the first tab holder 112 and the second tab holder 114 may be respectively and independently an insulating plastic holder, which may not only further contribute to the improvement of the safety and reliability of the battery, but also reduce the overall weight of the battery.
According to the utility model discloses a still another embodiment, as shown in fig. 4 and 5, can be equipped with second connecting hole 115 on the second utmost point ear support 114, be equipped with at least one on the liquid cooling board 220 and match the first arch 224 that links to each other with second connecting hole 115, can further utilize second utmost point ear support to carry out assistance-localization real-time at the battery directly even the intermediate position of group to the liquid cooling board from this to further improve the stability between liquid cooling board and the battery directly even group on the basis that does not increase extra fixed annex. Preferably, the first protrusion 224 is provided in plural, and is preferably provided at one side of the liquid cooling plate 220, thereby facilitating the installation of the liquid cooling plate.
According to the utility model discloses a still another concrete embodiment, the battery directly links group's 110 arrangement mode and number homogeneous phase the same in every layer of battery directly links group layer 100, and the multilayer battery directly links group 110 directly to the battery that adjacent two were arranged side by side in the group layer 110 and can share a liquid cooling board. Therefore, the number of the liquid cooling plates in the battery can be greatly reduced, and parts for supporting and fixing the liquid cooling plates are reduced or avoided, so that the heat dissipation efficiency of the battery can be improved, the internal structure of the battery can be simplified, and the cost of the battery can be reduced.
According to another embodiment of the present invention, a plurality of cooling liquid channels (not shown) may be built in the liquid cooling plate 220, and the plurality of cooling liquid channels share one cooling liquid inlet 221 and one cooling liquid outlet 222. Therefore, the circulation flow of the cooling liquid in the liquid cooling plate can be accelerated, the heat of the battery cell stacking body is taken away through the cooling liquid quickly, the heat of the battery cell stacking body is reduced, the cooling effect is further improved, and the structure of the cooling device can be further simplified.
According to the utility model discloses a still another embodiment, as shown in fig. 5 ~ 7, in the battery module direction of height, can be equipped with respectively independently between two adjacent electric core stacks 111 thermal-insulated bubble cotton 300, thermal-insulated bubble cotton 300 ends in first utmost point ear support 112 and/or second utmost point ear support 114, can separate the heat conduction route between each layer battery straight connection group layer from this, and the difference in temperature is too big between the electric core when avoiding the cooling. More preferably, the pouch battery may further include two protection plates 400, the two protection plates 400 being respectively provided at the lower surface and the upper surface of the battery module, namely the lower surface of the lowermost direct battery layer 100 and the upper surface of the uppermost direct battery layer, the thermal insulation foam 300 is independently arranged between each cell stack body 111 in contact with the protection plate and the protection plate 400, the thermal insulation foam 300 is stopped against the first lug support 112 and/or the second lug support 114, so that the thermal insulation foam can be arranged on the upper surface and the lower surface of each cell stack body, thereby can separate the electric core heat conduction route between each electric core stack body, the difference in temperature is too big between the electric core when further avoiding heat conduction, can also directly link the electric core in the group to the battery and effectively protect, damage electric core when avoiding transportation or equipment, can also avoid simultaneously leading hot glue because of the battery module vibrates the spilling over that leads to in the operation process. It should be noted that the material of the protection plate 400 is not particularly limited, and those skilled in the art can select the material according to actual needs, for example, the protection plate is made of metal and/or non-metal.
According to another embodiment of the present invention, referring to fig. 2 and 8, a third connection hole 116 is formed on the first tab support 112, a fourth connection hole 117 is formed on the second tab support 114, and a fifth connection hole or a second protrusion 410 corresponding to the third connection hole 116 and/or the fourth connection hole 117 is independently formed on each protection plate 400. Therefore, the protection plate can be connected with the third connecting hole and/or the fourth connecting hole through the fifth connecting hole to realize the connection of the protection plate and the battery direct connection group, wherein the connection can be welding or riveting, such as laser welding, ultrasonic welding, or screw and rivet connection; or the second protrusion can be clamped with the third connecting hole and/or the fourth connecting hole to realize the buckling connection of the protection plate and the battery direct connection group.
According to the utility model discloses a still another embodiment, can be equipped with on at least one guard plate 400 and match the recess (not shown) that links to each other with liquid cooling board 220, can further utilize the guard plate to fix liquid cooling board and heat conduction glue from this, avoid the heat conduction glue because of the battery module spills over that the vibration leads to in the operation process.
It should be noted that the present invention discloses a first tab support 112 and a second tab support 114, which can be used for supporting the tabs independently, and can be connected to any adjacent battery directly (layer), the liquid cooling plate and the protection plate, wherein the connection can be welding or riveting, such as laser welding, ultrasonic welding, or screw and rivet connection.
According to the utility model discloses a still another concrete embodiment, can be with the battery that is fixed with liquid cold board 220 directly even group 110 and with liquid cold board 220 directly even group 110 fixes on laminate polymer battery through the battery of the laminating of heat conduction glue 210, can further improve the stability of whole battery from this.
According to the utility model discloses a still another embodiment, the utility model discloses a number of piles of group layer is directly connected to battery among the laminate polymer battery and every layer of battery directly links the number of group in the group layer and does not receive special restriction, and the skilled person in the art can select according to the actual demand. For example, laminate polymer battery can include 1 ~ 6 layers of battery directly to organize the layer, and every layer of battery directly links the group layer and can include 2 ~ 6 batteries and directly link the group, can more adapt to the demand of current new energy automobile to power battery package height and capacity from this.
According to the utility model discloses a still another embodiment, a plurality of soft packet of electricity core can bond through the structure glue and stack in every electric core stack body 111, and the polarity that piles up electric core both ends is the same, forms the electric core stack body that has a plurality of parallelly connected electric cores, and the battery directly links group's layer 111 series welding or rivets formation battery and directly links group 110. All stretch out anodal ear and negative pole ear in every laminate polymer core, wherein anodal ear can be aluminium and/or aluminum alloy, and a plurality of anodal ears connect in parallel as anodal, and the negative pole ear can be copper and/or copper alloy, and a plurality of negative pole ears connect in parallel as the negative pole, and laminate polymer core shell can be the plastic-aluminum membrane.
According to the utility model discloses a still another embodiment, heat-conducting glue 210 can be heat-conducting gel, as shown in fig. 6 and 7, heat-conducting gel fills the side that distributes parallelly connected electric core in the group layer is directly connected to the battery, even the group layer upset 180 degrees and the bottom of directly connecting the battery after heat-conducting glue is filled does not have the support, the phenomenon of sagging can not appear yet. Further, before the parts of the two adjacent battery direct connection groups 110 with the heat conduction glue are attached to each other, the liquid cooling plate 220 is installed between the two battery direct connection groups 110, and the heat conduction glue on the side surfaces of the battery direct connection groups 110 is ensured to be in good contact with the liquid cooling plate through extrusion.
To sum up, the utility model discloses laminate polymer battery of above-mentioned embodiment has following advantage at least: 1) the battery cells are in a flat-lying mode, each battery cell stacking body can respectively and independently comprise a plurality of parallel battery cells stacked along the height direction of the soft-package battery, and therefore the height requirement of the battery pack can be met by adjusting the stacking thickness of the plurality of layers of flat-lying battery cells in the battery cell stacking body and the number of layers of the direct battery pack; 2) the cooling adopts a mode that the liquid cooling plate is directly filled with heat-conducting glue and the gap between the battery direct connection assembly layers is directly contacted with the battery core, so that the cooling efficiency is higher; 3) when two adjacent battery direct-connecting groups arranged side by side are connected, the liquid cooling plate can be pressed between the two battery direct-connecting groups, the heat-conducting glue, the liquid cooling plate and the battery core are uniformly and tightly attached, a gap between the battery core and the liquid cooling plate is eliminated, and parts for supporting and fixing the liquid cooling plate are reduced or avoided, so that the cost of the battery can be reduced and the internal structure of the battery can be simplified; 4) By controlling the position relationship between the liquid cooling plate and the two adjacent battery direct-connection groups, the full contact and heat transfer effect between the liquid cooling plate and the battery core can be prevented from being influenced due to too little heat-conducting glue, and the heat transfer quantity in unit time can be prevented from being influenced due to too thin liquid cooling plate, so that the cooling efficiency and the cooling effect of the cooling device on the battery core can be further improved; 5) only one liquid cooling plate is arranged in two adjacent battery direct-connection groups arranged in parallel, so that the heat of the multilayer battery core can be quickly led out, the internal structure of the battery is simpler, and the overall weight is lighter; 6) the liquid cooling plate adopts a wavy or zigzag bent plate, so that the contact area of the liquid cooling plate and the heat conducting glue and the flowing interval of cooling liquid in the liquid cooling plate can be further increased, the heat conducting efficiency can be further increased, and the cooling effect can be improved. Compared with the prior art, the soft package battery simultaneously improves the heat conduction efficiency from the arrangement mode of the liquid cooling plate and the liquid cooling plate structure, not only has good cooling effect, but also has simpler internal structure of the battery and small assembly difficulty, and can better meet the requirement of highly reducing the battery system.
According to a second aspect of the present invention, the utility model provides a vehicle. According to the utility model discloses an embodiment, this vehicle includes foretell laminate polymer battery. Power battery's radiating effect is good and light in weight in this vehicle, and the duration is more stable. It should be noted that the type of the vehicle is not particularly limited, and those skilled in the art can select the vehicle according to actual needs, for example, the vehicle may be a new energy vehicle or the like. In addition, it should be noted that the features and effects described for the pouch battery are also applicable to the vehicle, and are not described in detail here.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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 invention. In this specification, the schematic representations of the terms used above are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (12)
1. A pouch cell, comprising:
the battery module comprises at least one layer of battery direct connection group layer, each layer of battery direct connection group layer comprises at least two battery direct connection groups arranged side by side, each battery direct connection group comprises one battery cell stack body or a plurality of battery cell stack bodies connected in series, two ends of each battery direct connection group are respectively and independently provided with a first tab support, and two adjacent battery direct connection groups arranged side by side are connected through the first tab supports;
cooling device, cooling device include heat-conducting glue and with the liquid cooling board, the liquid cooling board is wave bent board or zigzag bent board, every layer arbitrary two adjacent and arrange side by side in the group layer is directly connected to the battery the equipartition has been put between the group the liquid cooling board, heat-conducting glue is filled the battery directly connect the group with between the liquid cooling board, the liquid cooling board is perpendicular to the distance on the group length direction is directly connected to the battery and adjacent two arrange side by side the distance ratio between the group is directly connected to the battery is (0.1 ~ 0.8): 1.
2. the laminate polymer battery as claimed in claim 1, wherein a first connection hole is formed in the first tab holder, a through hole corresponding to the first connection hole is formed in the liquid cooling plate, and the liquid cooling plate is connected with the battery direct connection unit through the through hole and the first connection hole.
3. The laminate battery according to claim 1 or 2, wherein a second tab support is disposed between two adjacent series-connected cell stacks in the battery direct connection group, and two adjacent battery direct connection group layers are connected through the first tab support and/or the second tab support.
4. The laminate battery according to claim 3, wherein the second tab holder has a second connecting hole, and the liquid cooling plate has at least one first protrusion connected to the second connecting hole in a mating manner.
5. The laminate polymer battery according to claim 1, wherein the arrangement and the number of the battery direct connection groups in each layer of the battery direct connection group layer are the same, and two adjacent rows of the battery direct connection groups arranged side by side in the multilayer battery direct connection group layer share one liquid cooling plate.
6. The laminate polymer battery according to claim 4, wherein the arrangement and the number of the battery direct connection groups in each layer of the battery direct connection group layer are the same, and two adjacent rows of the battery direct connection groups arranged side by side in the multilayer battery direct connection group layer share one liquid cooling plate.
7. The pouch cell defined in claim 6 wherein the liquid-cooled plate houses a plurality of coolant channels, the plurality of coolant channels sharing one of the coolant inlets and one of the coolant outlets.
8. The laminate battery according to claim 1, wherein thermal insulation foam is independently provided between two adjacent cell stacks in the height direction of the battery module.
9. The laminate battery according to claim 7, wherein thermal insulation foam is independently provided between two adjacent cell stacks in the height direction of the battery module.
10. The pouch cell defined in claim 9, further comprising:
two guard plates, establish respectively two guard plates the lower surface of battery module with the upper surface of battery module, with every of guard plate contact electric core pile body with be equipped with thermal-insulated bubble cotton respectively independently between the guard plate.
11. The laminate polymer battery according to claim 10, wherein the first tab holder is provided with a third connecting hole, the second tab holder is provided with a fourth connecting hole, and each of the protection plates is independently provided with a fifth connecting hole or a second protrusion corresponding to the third connecting hole and/or the fourth connecting hole.
12. A vehicle characterized by comprising the pouch battery according to any one of claims 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020716529.4U CN211980796U (en) | 2020-04-30 | 2020-04-30 | Laminate polymer battery and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020716529.4U CN211980796U (en) | 2020-04-30 | 2020-04-30 | Laminate polymer battery and vehicle |
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| CN211980796U true CN211980796U (en) | 2020-11-20 |
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| CN202020716529.4U Expired - Fee Related CN211980796U (en) | 2020-04-30 | 2020-04-30 | Laminate polymer battery and vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113113694A (en) * | 2021-02-26 | 2021-07-13 | 合肥国轩高科动力能源有限公司 | Lithium battery module integrated with liquid cooling function |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113113694A (en) * | 2021-02-26 | 2021-07-13 | 合肥国轩高科动力能源有限公司 | Lithium battery module integrated with liquid cooling function |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20201120 Termination date: 20210430 |