CN219419180U - Battery monomer and battery module - Google Patents
Battery monomer and battery module Download PDFInfo
- Publication number
- CN219419180U CN219419180U CN202320439262.2U CN202320439262U CN219419180U CN 219419180 U CN219419180 U CN 219419180U CN 202320439262 U CN202320439262 U CN 202320439262U CN 219419180 U CN219419180 U CN 219419180U
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- CN
- China
- Prior art keywords
- shell
- battery
- wall
- heat dissipation
- installation part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000178 monomer Substances 0.000 title claims abstract description 18
- 230000017525 heat dissipation Effects 0.000 claims abstract description 33
- 238000009434 installation Methods 0.000 claims abstract description 30
- 238000009833 condensation Methods 0.000 claims description 11
- 230000005494 condensation Effects 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 238000010521 absorption reaction Methods 0.000 claims description 10
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 239000012530 fluid Substances 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000011149 active material Substances 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Secondary Cells (AREA)
Abstract
The utility model relates to a battery monomer and a battery module, wherein the battery monomer comprises a shell, at least one electric core, a top cover and a heat dissipation assembly, and the shell is at least provided with an opening; at least one battery cell is accommodated in the shell; the top cover is arranged at the opening of the shell to encapsulate the shell; the heat dissipation assembly is arranged on the outer wall of the shell, a first installation part is arranged on the outer wall of the shell, and the heat dissipation assembly is arranged on the first installation part; the battery cell is provided with a tab, and along the height direction of the shell, the position of the first installation part on the outer wall of the shell and the position of the tab are positioned on the same horizontal plane. According to the utility model, the heat radiating component is arranged at the port of the shell close to the lug, so that heat generated at the lug can be effectively radiated in time, the service life of the battery is remarkably prolonged, and the potential safety hazard is reduced.
Description
Technical Field
The utility model relates to the technical field of lithium batteries, in particular to a battery monomer and a battery module.
Background
The lithium ion battery has the advantages of no pollution, long cycle life, no memory effect and the like, and is widely used for portable electronic products such as notebooks, smart phones, electric tools and the like. With the development of electric vehicles, lithium ion batteries have been widely used as power batteries for vehicles, and consumers have higher demands for the endurance mileage of the electric vehicles, so that power lithium ion batteries with higher energy density are urgently needed.
When the battery pack is charged and discharged at a high rate, the battery cell generates larger heat, and the heat is not easy to dissipate. The conventional common heat dissipation mode is that after a battery is assembled into a battery pack, a water cooling, air cooling, natural convection and other heat dissipation structures are arranged at the bottom of a battery pack box body, however, the heat generated by the battery monomer is more at the position of a pole lug, and the heat dissipation structure arranged at the bottom of the battery pack box body is far away from the position of the pole lug, so that the heat dissipation effect of the heat dissipation structure on the pole lug is general, heat generated by the pole lug can not be dissipated timely and effectively, and if the heat can not be timely dissipated, the service life of the battery can be greatly shortened, and serious potential safety hazards are even easily caused.
Therefore, how to improve the problem that the tab of the battery is not easy to dissipate heat has become a technical problem to be solved.
Disclosure of Invention
Therefore, the utility model aims to solve the technical problem that the position of the battery pack tab in the prior art is not easy to dissipate heat.
In order to solve the above technical problems, the present utility model provides a battery cell, including:
a shell provided with at least one opening;
at least one battery cell accommodated in the shell;
a top cover disposed at an opening of the housing to encapsulate the housing;
the heat dissipation assembly is arranged on the outer wall of the shell, a first installation part is arranged on the outer wall of the shell, and the heat dissipation assembly is arranged on the first installation part;
the battery cell is provided with a tab, and along the height direction of the shell, the position of the first installation part on the outer wall of the shell and the position of the tab are positioned on the same horizontal plane.
In one embodiment of the utility model, the shell comprises a bottom wall and a side wall, wherein the side wall surrounds the bottom wall to form a shell with at least one opening at one end, a first mounting part is arranged on the outer wall of the side wall of the shell, and the heat dissipation components are arranged in the first mounting parts.
In one embodiment of the utility model, the first mounting portion is a groove provided on the outer wall of the housing.
In one embodiment of the utility model, the heat dissipating component is at least partially disposed in the recess.
In one embodiment of the utility model, the distance of the groove from the open end of the housing is 5-10mm and the depth of the groove is 10-20mm.
In one embodiment of the present utility model, the heat dissipating assembly includes at least one heat dissipating tube, the heat dissipating tube includes a heat absorbing tube section and a condensing tube section, the heat absorbing tube section is disposed on the first mounting portion, and the heat absorbing tube section is communicated with the condensing tube section.
In one embodiment of the utility model, the pipe wall of the radiating pipe is provided with a wire-shaped metal net.
The utility model also provides a battery module, which comprises a battery monomer, a side plate and an end plate, wherein the side plate and the end plate form a containing cavity for containing the battery monomer, a plurality of battery monomers are arranged in the containing cavity in parallel, the battery monomer comprises a shell, at least one electric core and a heat dissipation assembly, the at least one electric core is contained in the shell, the heat dissipation assembly is enclosed on the outer wall of the shell of the plurality of battery monomers which are arranged in parallel, a first installation part is arranged on the outer wall of the shell, and the heat dissipation assembly is arranged on the first installation part; the battery cell is provided with a tab, and along the height direction of the shell, the position of the first installation part on the outer wall of the shell and the position of the tab are positioned on the same horizontal plane.
In one embodiment of the present utility model, the heat dissipating assembly includes at least one heat dissipating tube, the heat dissipating tube includes a heat absorbing tube section and a condensing tube section, the heat absorbing tube section is disposed on the first mounting portion, and the heat absorbing tube section is communicated with the condensing tube section.
In one embodiment of the utility model, a second mounting part is provided on the inner wall of the side plate and/or the end plate, and the condensation pipe section is provided on the second mounting part.
Compared with the prior art, the technical scheme of the utility model has the following advantages:
according to the battery monomer and the battery module, the heat radiating component is arranged at the port, close to the lug, of the shell, so that heat generated at the lug can be timely and effectively radiated, the service life of the battery is remarkably prolonged, and potential safety hazards are reduced.
Drawings
In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings.
Fig. 1 is a schematic structural diagram of a battery cell according to an embodiment of the present utility model.
Fig. 2 is a schematic diagram illustrating a relative position between the first mounting portion and the tab according to an embodiment of the utility model.
Fig. 3 is a schematic flow diagram of a working fluid according to a first embodiment of the present utility model.
Fig. 4 is an enlarged partial schematic view of the upper portion a of fig. 2.
Fig. 5 is a schematic structural diagram of a battery module according to a fourth embodiment of the present utility model.
Fig. 6 is a schematic diagram illustrating an assembled structure of an end plate and a condensation pipe according to a fourth embodiment of the present utility model.
Description of the specification reference numerals: 1. a housing; 11. a first mounting portion; 2. a top cover; 31. a heat absorbing pipe section; 32. a condensing tube section; 33. a wire-shaped metal net; 4. a side plate; 5. an end plate; 6. and a tab.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.
Example 1
For convenience of description, the following examples will take a battery cell provided in the first embodiment of the present utility model as an example.
Referring to fig. 1, an embodiment of the present utility model provides a battery cell, including a housing 1, at least one electric core, and a top cover, where the housing 1 is provided with at least one opening; at least one battery cell is accommodated in the shell 1; the top cover is arranged at the opening of the shell 1 to encapsulate the shell 1; the top cover is used to cooperate with the housing 1 to form an assembly of the internal environment of the battery, where the internal environment formed may be used to house the cells, electrolyte and other components. The case 1 and the top cover may be separate members, and an opening may be provided in the case 1, and the opening may be closed by the top cover 2 at the opening to form the internal environment of the battery.
The housing 1 according to the embodiment of the present utility model may be a hollow structure with one side open, or may be a hollow structure with two sides open. The housing 1 may be of various shapes, such as a cylinder, a rectangular parallelepiped, etc.
The electric core of the embodiment of the utility model is a component for generating electrochemical reaction in a battery. One or more electrical cells may be contained within the housing 1. The battery cell is mainly formed by winding or laminating a positive electrode plate layer, an isolating film layer and a negative electrode plate layer. The portions of the positive electrode sheet layer and the negative electrode sheet layer having the active material constitute the main body portion of the battery cell, and the portions of the positive electrode sheet layer and the negative electrode sheet layer having no active material constitute the tab 6, respectively. The positive electrode tab and the negative electrode tab may be located at one end of the main body portion together or located at two ends of the main body portion respectively.
The problems that more heat is generated at the positions of the battery lugs 6 and the heat is not easy to dissipate are considered. The utility model also comprises a heat radiation component which is arranged on the outer wall of the shell 1, wherein the outer wall of the shell 1 is provided with a first installation part 11, and the heat radiation component is arranged on the first installation part 11; along the direction of the height of the shell, the position of the first installation part 11 on the outer wall of the shell 1 and the position of the tab 6 are on the same horizontal plane, as shown in fig. 2, the direction of the arrow in the figure is the direction of the height of the shell 1, and the direction of the dotted line is the horizontal direction, so that, as a preferred mode, the central position of the first installation part 11 and the position of the tab 6 are on the same horizontal plane, namely, the position of the tab 6, which is infinitely close to the battery, of the heat dissipation assembly, so that heat generated at the position of the tab 6 can be timely and effectively dissipated, the service life of the battery is remarkably prolonged, and the potential safety hazard is reduced.
Wherein, above-mentioned casing 1 includes diapire and lateral wall, and the lateral wall encloses and closes around the diapire and form the casing 1 that has at least one end open-ended, is provided with first installation department 11 on the outer wall of the lateral wall of casing 1, all is provided with radiator unit in the first installation department 11, and radiator unit encloses promptly and closes in the lateral wall setting of casing 1. The radiating component comprises at least one radiating pipe, and preferably, the radiating pipe is L-shaped, the two L-shaped radiating pipes are assembled into the 'square-shaped' radiating component to be matched with a battery for use, namely, the two L-shaped radiating pipes are enclosed in the side wall of the shell 1, so that the radiating area can be remarkably increased, heat generated at the lug 6 can be timely and effectively radiated, the service life of the battery is remarkably prolonged, and potential safety hazards are reduced.
Preferably, the first mounting portion 11 is a groove provided on the outer wall of the housing 1, and the heat dissipation assembly is provided in the groove. Preferably, the recess is located at a distance of 5-10mm from the open end of the housing 1. As an example, the distance between the groove and the opening end of the housing 1 is 5mm, that is, the groove is close to the position of the tab, so that heat generated at the tab 6 can be effectively dissipated in time, and the problem that the position of the tab is not easy to dissipate heat is solved.
Further, the depth of the groove is 10-20mm, and the depth of the groove is mainly determined by the diameter of the radiating pipe. The purpose of the grooves is to enable the outer surface of the radiating pipe to be flush with the surface of the shell 1, so that the space of the shell 1 is not occupied, and the energy density of the battery can be remarkably improved.
Wherein, above-mentioned cooling tube includes heat absorption pipe section 31 and condenser pipe section 32, and heat absorption pipe section 31 sets up in first installation department 11, and condenser pipe section 32 is located the side of battery, and condenser pipe section 32 is the S type and distributes, and condenser pipe section 32 and heat absorption pipe section 31 intercommunication, and the cooling tube is whole sealed promptly, and the lumen intussuseption of cooling tube has the working fluid. Preferably, the working liquid is injected into the tube cavity of the radiating tube in a negative pressure pumping mode, and the working liquid is one of ammonia, water, acetone and methanol.
Further, the outer shell of the radiating pipe is made of copper metal, and the pipe wall of the radiating pipe is provided with a wire-shaped metal net 33. Preferably, the wire-like metal net 33 is a copper wire-like metal net 33, and when the working liquid is in contact with the micro-gaps in the copper wire-like metal net 33 of the pipe wall, the working liquid moves along the gaps under the infiltration condition, the micro-gaps in the copper wire-like metal net 33 are similar to a capillary pipe, the whole liquid surface in the capillary pipe becomes curved, the acting direction of the capillary force always points to the concave surface of the curved liquid surface, and the liquid surface of the infiltrated working liquid in the micro-gaps (i.e. the capillary pipe) is concave, and suction force is applied to the working liquid below, so that the working liquid rises along the pipe wall, and the working liquid moves along the gaps under the infiltration condition.
In actual operation, the flow of the working fluid is schematically shown in fig. 3 and 4. The heat generated inside the battery is absorbed by the working fluid in the heat absorbing pipe section 31, and the temperature of the working fluid, which absorbs the heat, is rapidly increased, resulting in rapid vaporization of the working fluid into a gas. With the increase of air pressure, the air moves to the condensation pipe section 32 with low temperature, when the air reaches the condensation pipe section 32, the air rapidly liquefies and condenses into working liquid due to the rapid decrease of temperature, at this time, the micro-gaps in the copper wire-shaped metal net are similar to a capillary pipe, the whole liquid surface in the capillary pipe is curved, the acting direction of the capillary force always points to the concave surface of the curved liquid surface, the immersed working liquid in the micro-gaps (i.e. the capillary pipe) has concave liquid surface, suction force is applied to the working liquid below the micro-gaps, so that the working liquid rises along the pipe wall, the working liquid moves along the gaps under the immersion condition, namely, the working liquid flows to the heat absorption pipe section 31 under the action of the capillary force through the copper wire-shaped metal net of the pipe wall, so that a closed heat dissipation loop is formed, and the circulating motion of the working liquid is realized, so that the heat generated at the lug can be effectively dissipated in time, and the problem that the lug position is not easy to dissipate heat is solved.
The utility model provides a battery monomer, which is characterized in that a radiating component is arranged at a port of a shell 1, which is close to a lug 6, so that heat generated at the lug can be timely and effectively radiated, the service life of the battery is remarkably prolonged, and potential safety hazards are reduced.
Example two
The second embodiment of the present utility model further provides a battery module, as shown in fig. 5 and 6, where the battery module includes a battery unit, the battery module further includes a side plate 4 and an end plate 5, the side plate 4 and the end plate 5 form a receiving cavity for receiving the battery unit, and a plurality of battery units are arranged in parallel in the receiving cavity, where the battery unit includes a housing 1, at least one electric core and a heat dissipation assembly, the at least one electric core is received in the housing 1, the heat dissipation assembly is enclosed on an outer wall of the housing 1 of the plurality of battery units arranged in parallel, a first mounting portion 11 is provided on an outer wall of the housing 1, and the heat dissipation assembly is provided on the first mounting portion 11; the battery cell is provided with the utmost point ear, along casing 1 direction of height, and the position of first installation department 11 on casing 1 outer wall is in same horizontal plane with utmost point ear position.
The structure and the working principle of the first mounting portion and the heat dissipating assembly may refer to the content of the first embodiment, which is not described herein.
Further, a second mounting portion is provided on the inner wall of the side plate 4 and/or the end plate 5 contacting the battery cell, and the condensation pipe section 32 is provided on the second mounting portion. As an example, the second mounting part is a groove provided on the side wall of the side plate 4 and/or the end plate 5, and after the battery cells are assembled into the battery module, the side wall of the side plate 4 and/or the end plate 5 of the battery module is grooved to embed the condensation pipe section 32 in the groove, so that the space of the side plate and/or the end plate is not occupied.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present utility model will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present utility model.
Claims (10)
1. A battery cell, characterized in that: comprising the following steps:
a shell provided with at least one opening;
at least one battery cell accommodated in the shell;
a top cover disposed at an opening of the housing to encapsulate the housing;
the heat dissipation assembly is arranged on the outer wall of the shell, a first installation part is arranged on the outer wall of the shell, and the heat dissipation assembly is arranged on the first installation part;
the battery cell is provided with a tab, and along the height direction of the shell, the position of the first installation part on the outer wall of the shell and the position of the tab are positioned on the same horizontal plane.
2. A battery cell as defined in claim 1, wherein: the shell comprises a bottom wall and side walls, wherein the side walls are enclosed around the bottom wall to form a shell with at least one end opening, a first installation part is arranged on the outer wall of the side walls of the shell, and the heat dissipation components are arranged in the first installation parts.
3. A battery cell according to claim 1 or 2, wherein: the first installation part is a groove arranged on the outer wall of the shell.
4. A battery cell according to claim 3, wherein: the heat dissipation assembly is at least partially arranged in the groove.
5. A battery cell according to claim 3, wherein: the distance between the groove and the opening end of the shell is 5-10mm, and the depth of the groove is 10-20mm.
6. A battery cell according to claim 1 or 2, wherein: the heat dissipation assembly comprises at least one heat dissipation tube, the heat dissipation tube comprises a heat absorption tube section and a condensation tube section, the heat absorption tube section is arranged on the first installation part, and the heat absorption tube section is communicated with the condensation tube section.
7. A battery cell as defined in claim 6, wherein: the pipe wall of the radiating pipe is provided with a wire-shaped metal net.
8. A battery module, characterized in that: the battery comprises a battery monomer, a side plate and an end plate, wherein the side plate and the end plate form a containing cavity for containing the battery monomer, a plurality of battery monomers are arranged in the containing cavity in parallel, the battery monomer comprises a shell, at least one electric core and a heat dissipation assembly, the at least one electric core is contained in the shell, the heat dissipation assembly is enclosed on the outer wall of the shell of the plurality of battery monomers which are arranged in parallel, a first installation part is arranged on the outer wall of the shell, and the heat dissipation assembly is arranged on the first installation part; the battery cell is provided with a tab, and along the height direction of the shell, the position of the first installation part on the outer wall of the shell and the position of the tab are positioned on the same horizontal plane.
9. The battery module according to claim 8, wherein: the heat dissipation assembly comprises at least one heat dissipation tube, the heat dissipation tube comprises a heat absorption tube section and a condensation tube section, the heat absorption tube section is arranged on the first installation part, and the heat absorption tube section is communicated with the condensation tube section.
10. The battery module according to claim 9, wherein: the side plate and/or the inner wall of the end plate is provided with a second installation part, and the condensation pipe section is arranged on the second installation part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320439262.2U CN219419180U (en) | 2023-03-09 | 2023-03-09 | Battery monomer and battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320439262.2U CN219419180U (en) | 2023-03-09 | 2023-03-09 | Battery monomer and battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219419180U true CN219419180U (en) | 2023-07-25 |
Family
ID=87244071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320439262.2U Active CN219419180U (en) | 2023-03-09 | 2023-03-09 | Battery monomer and battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219419180U (en) |
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2023
- 2023-03-09 CN CN202320439262.2U patent/CN219419180U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |