CN216213802U - Single battery, battery module and battery pack - Google Patents
Single battery, battery module and battery pack Download PDFInfo
- Publication number
- CN216213802U CN216213802U CN202122153072.8U CN202122153072U CN216213802U CN 216213802 U CN216213802 U CN 216213802U CN 202122153072 U CN202122153072 U CN 202122153072U CN 216213802 U CN216213802 U CN 216213802U
- Authority
- CN
- China
- Prior art keywords
- pole
- battery
- battery cell
- utmost point
- tab
- 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.)
- Active
Links
Images
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
- Connection Of Batteries Or Terminals (AREA)
Abstract
The application discloses a single battery, a battery module and a battery pack, wherein the single battery comprises a shell, a top cover, a battery core and a pole connecting sheet, and the top cover comprises a positive pole, a negative pole and a cover body; the battery cell comprises a plurality of positive lugs, a plurality of negative lugs and a body; the pole connecting sheet comprises a pole connecting part and a plurality of pole lug connecting parts, and the pole lug connecting parts are connected to the pole connecting part and are respectively arranged on two sides of the pole connecting part; the utmost point post connection piece is provided with two, and the utmost point post connecting portion of one of them utmost point post connection piece are connected in anodal post and utmost point ear connecting portion and are connected in anodal ear, and the utmost point post connecting portion of another utmost point post connection piece are connected in negative pole post and utmost point ear connecting portion and are connected in negative pole ear. The electric current can follow the both sides flow direction utmost point post of utmost point post connecting portion, and the area of overflowing of utmost point post connecting portion can be followed two sides and calculated, can increase the area of overflowing to improve the ability of overflowing of utmost point post connecting portion, be favorable to improving battery cell's charge-discharge multiplying power, satisfy quick charge-discharge demand.
Description
Technical Field
The application relates to the technical field of power batteries, in particular to a single battery, a battery module and a battery pack.
Background
With the development of the times, people have higher and higher requirements on the charge and discharge multiplying power of the battery, and the battery with the high charge and discharge multiplying power can save the charge time and meet the requirements of modern people. Therefore, a single battery capable of satisfying rapid charge and discharge is required.
SUMMERY OF THE UTILITY MODEL
The present application is directed to solving at least one of the problems in the prior art. Therefore, the application provides a single battery, which can improve the charge and discharge multiplying power.
The application also provides a battery module comprising the single battery.
The application also provides a battery pack comprising the battery module.
The single battery provided in the embodiment of the first aspect of the present application includes a housing, a top cap, a battery cell and a terminal post connecting sheet, where the top cap includes a positive terminal, a negative terminal and a cap body, the positive terminal and the negative terminal are both disposed through the cap body, and the cap body is fastened to the housing to seal the housing; the battery cell comprises a plurality of positive lugs, a plurality of negative lugs and a body, wherein the positive lugs are connected with the body, the negative lugs are connected with the body, and the battery cell is accommodated in the shell; the pole connecting sheet comprises a pole connecting part and a plurality of pole lug connecting parts, the pole lug connecting parts are all connected to the pole connecting part, and the pole lug connecting parts are arranged on two sides of the pole connecting part; the pole connecting piece is at least provided with two, one of the two pole connecting pieces is connected with the positive pole and the pole connecting piece is connected with the positive pole and the pole lug connecting piece is connected with the positive pole lug and the other pole connecting piece is connected with the negative pole and the pole lug connecting piece is connected with the negative pole lug.
The single battery provided by the embodiment of the first aspect of the application has at least the following beneficial effects: the both sides of utmost point post connecting portion are located to a plurality of utmost point ear connecting portion, and the electric current can follow the both sides flow direction utmost point post of utmost point post connecting portion or follow the both sides of utmost point post flow direction utmost point post connecting portion, and the area of overflowing of utmost point post connecting portion can be calculated from two sides, compares in utmost point ear connecting portion only locate one side of utmost point post connecting portion, and the area of overflowing of utmost point post connecting portion of this application scheme is bigger, consequently can improve the ability of overflowing of utmost point post connecting portion, is favorable to improving battery cell's charge-discharge rate, satisfies quick charge-discharge demand.
In some embodiments of the present application, the plurality of tab connection parts are symmetrically disposed at both sides of the pole connection part.
In some embodiments of the present application, the post connecting sheet further includes a plurality of protection portions, a plurality of the protection portions are disposed on both sides of the post connecting portion, the protection portions are located between the post connecting portion and the tab connecting portion, and the protection portions are provided with through holes.
In some embodiments of the present application, the protective portion further includes an insulating member covering the protective portion.
In some embodiments of the present application, the battery comprises a plurality of the battery cells, a plurality of the battery cells are electrically connected to each other, at least one of the positive electrode tabs of the battery cells is connected to the electrode tab connection portion of one of the electrode tab connection pieces, and at least one of the negative electrode tabs of the battery cells is connected to the electrode tab connection portion of another one of the electrode tab connection pieces.
In some embodiments of the present application, the battery further comprises an internal connection sheet, and the different battery cells are electrically connected through the internal connection sheet.
In some embodiments of the present application, the casing includes a casing and a partition housed inside the casing and connected to the casing, the partition being configured to partition the plurality of battery cells.
In some embodiments of the present application, the casing includes a plurality of the partition boards, a plurality of accommodating spaces are defined inside the casing by the plurality of the partition boards, the number of the accommodating spaces is equal to the number of the battery cells, and the plurality of battery cells are accommodated in the plurality of accommodating spaces in a one-to-one correspondence manner.
The battery module provided by the embodiment of the second aspect of the present application comprises a plurality of single batteries provided by the separator and any one of the above embodiments, wherein the plurality of single batteries are electrically connected; the separator is provided with a plurality ofly, the separator sets up in adjacent between the battery cell.
The battery module that this application second aspect embodiment provided has following beneficial effect at least: the single battery with high charging and discharging multiplying power is adopted, so that the charging and discharging multiplying power of the battery module can be improved, and the requirement of quick charging and discharging is met.
The battery pack provided by the embodiment of the third aspect of the present application includes a case and the battery module provided by any one of the above embodiments, where the battery module is accommodated in the case.
The battery pack provided by the embodiment of the third aspect of the application has at least the following beneficial effects: the battery module with higher charging and discharging multiplying power is adopted, so that the charging and discharging multiplying power of the battery pack can be improved, and the requirement of quick charging and discharging is met.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The present application is further described with reference to the following figures and examples, in which:
fig. 1 is an exploded schematic view of a cell provided in some embodiments of a first aspect of the present application;
fig. 2 is a schematic diagram of the cell, the terminal connecting sheet, the insulating member, and the top cap of the battery cell shown in fig. 1;
FIG. 3 is a schematic view of a terminal tab of the cell shown in FIG. 2;
FIG. 4 is a schematic view of the mating of the post connecting tab and the insulator shown in FIG. 3;
fig. 5 is an exploded schematic view of a single cell provided in other embodiments of the first aspect of the present application;
fig. 6 is a schematic diagram illustrating the cell, the terminal connecting sheet and the top cap of the battery cell shown in fig. 5;
fig. 7 is an exploded view of a cell provided in accordance with further embodiments of the first aspect of the present application;
fig. 8 is an exploded view of a cell provided in accordance with further embodiments of the first aspect of the present application;
fig. 9 is an exploded view of a single battery provided in other embodiments of the first aspect of the present application.
Reference numerals:
the battery comprises a shell 100, a shell 110, a separator 120, a top cover 200, a positive pole 210, a negative pole 220, a cover 230, a battery cell 300, a positive pole lug 310, a negative pole lug 320, a body 330, a pole connecting sheet 400, a pole connecting portion 410, a pole lug connecting portion 420, a protection portion 430, a through hole 431, an insulating piece 500, an internal connecting sheet 600, an insulating film 700 and a bottom supporting plate 800.
Detailed Description
Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it is to be understood that the positional descriptions referred to, for example, the directions or positional relationships indicated above, below, left, right, etc., are based on the directions or positional relationships shown in the drawings, and are only for convenience of describing the present application and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present application.
In the description of the present application, unless otherwise expressly limited, terms such as set, mounted, connected and the like should be construed broadly, and those skilled in the art can reasonably determine the specific meaning of the terms in the present application by combining the detailed contents of the technical solutions.
Reference throughout this specification to the description of "one embodiment," "some embodiments," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The single battery provided in the embodiment of the first aspect of the present application includes a housing 100, a top cover 200, a battery cell 300, and a terminal connecting sheet 400, where the top cover 200 includes a positive terminal 210, a negative terminal 220, and a cover 230, the positive terminal 210 and the negative terminal 220 both penetrate through the cover 230, and the cover 230 is fastened to the housing 100 to seal the housing 100; the battery cell 300 includes a plurality of positive electrode tabs 310, a plurality of negative electrode tabs 320, and a body 330, the positive electrode tabs 310 are connected to the body 330, the negative electrode tabs 320 are connected to the body 330, and the battery cell 300 is accommodated in the casing 100; the pole connecting sheet 400 includes a pole connecting portion 410 and a plurality of pole tab connecting portions 420, the plurality of pole tab connecting portions 420 are all connected to the pole connecting portion 410, and the plurality of pole tab connecting portions 420 are respectively disposed at both sides of the pole connecting portion 410; at least two pole connecting pieces 400 are provided, wherein the pole connecting portion 410 of one pole connecting piece 400 is connected to the positive pole 210 and the pole connecting portion 420 is connected to the positive pole tab 310, and the pole connecting portion 410 of the other pole connecting piece 400 is connected to the negative pole 220 and the pole connecting portion 420 is connected to the negative pole tab 320.
For example, as shown in fig. 1 to 9, the single battery includes a housing 100, a top cap 200, a battery cell 300 and a terminal tab 400, wherein the terminal tab 400 includes a terminal connecting portion 410 and a plurality of terminal connecting portions 420, the plurality of terminal connecting portions 420 are all connected to the terminal connecting portion 410, the plurality of terminal connecting portions 420 are respectively disposed on two sides of the terminal connecting portion 410, the terminal tab 400 is provided with two terminal tabs 400, the terminal connecting portion 410 of one terminal tab 400 is connected to the positive terminal 210, and the terminal tab 420 is connected to the positive terminal 310, the terminal connecting portion 410 of the other terminal tab 400 is connected to the negative terminal 220, and the terminal tab 420 is connected to the negative terminal 320. Referring to fig. 2 and 6, the tab connection portions 420 are respectively disposed on two sides of the post connection portion 410, the current can flow from two sides of the post connection portion 410 to the positive post 210 or the negative post 220 along the arrow indication direction, the flow area of the post connection portion 410 can be calculated to be 2 times of the sectional area of the post connection portion 410, the overcurrent capacity of the post connection portion 410 can be improved, and therefore the charge and discharge rate of the single battery is improved, and the rapid charge and discharge requirement is met.
It can be understood that the number of the positive electrode tabs 310 and the number of the negative electrode tabs 320 of the battery cell 300 are not limited, and the number of the tab connection portions 420 on the terminal connection sheet 400 is not limited, and can be set according to actual requirements, and it should be noted that the number of the tab connection portions 420 should be the same as the number of the positive electrode tabs 310 or the negative electrode tabs 320 to be connected, for example, if one terminal connection sheet 400 needs to be connected to one battery cell 300, and the battery cell 300 has two positive electrode tabs 310, two tab connection portions 420 need to be arranged on the terminal connection sheet 400; if one pole connecting sheet 400 needs to be connected to one battery cell 300 and the battery cell 300 has four positive pole lugs 310, four pole lug connecting portions 420 need to be arranged on the pole connecting sheet 400; if one pole connecting sheet 400 needs to be connected to two battery cells 300, and each battery cell 300 has two positive pole lugs 310, four pole lug connecting portions 420 need to be disposed on the pole connecting sheet 400. The pole connection portion 410 and the positive pole 210 or the negative pole 220, and the tab connection portion 420 and the positive tab 310 or the negative tab 320 can be connected to each other in a welding manner, and the specific welding manner is not limited, and ultrasonic welding, laser welding and the like can be selected according to actual conditions.
The plurality of tab connection portions 420 are symmetrically disposed on both sides of the pole connection portion 410.
For example, as shown in fig. 2 and 6, the plurality of tab connection portions 420 are symmetrically disposed on both sides of the pole connection portion 410, and can balance the current flowing from both sides of the pole connection portion 410 to the positive pole 210 or the negative pole 220, thereby preventing a fault caused by an excessive current on one side; in addition, the plurality of tab connection parts 420 are symmetrically arranged at both sides of the tab connection part 410, so that the positioning of equipment can be facilitated in the production process of the single battery, and the production efficiency is improved.
It is understood that the number of the tab connection parts 420 should be provided in an even number.
It should be noted that the pole connecting sheet 400 further includes a plurality of protection portions 430, the protection portions 430 are respectively disposed on two sides of the pole connecting portion 410, the protection portions 430 are located between the pole connecting portion 410 and the tab connecting portion 420, and the protection portions 430 are provided with through holes 431.
For example, as shown in fig. 3, the pole connecting sheet 400 further includes two protection portions 430, the two protection portions 430 are respectively disposed on two sides of the pole connecting portion 410, the protection portions 430 are located between the pole connecting portion 410 and the pole connecting portion 420, the current flows from the pole connecting portion 420 to the pole connecting portion 410 and needs to pass through the protection portions 430, the protection portions 430 are provided with through holes 431, the current can only pass through two sides of the through holes 431, the cross-sectional area of the overcurrent portion is small, when the current is too large, the temperature of the protection portions 430 on two sides of the through holes 431 can be rapidly increased to the melting point of the pole connecting sheet 400 and fused, so that the circuit connection is disconnected, the single battery is protected from being damaged, and the safety performance of the single battery in the using process is ensured.
It can be understood that only the positive electrode terminal connecting piece 400 may be provided with the protection portion 430, only the negative electrode terminal connecting piece 400 may be provided with the protection portion 430, and each terminal connecting piece 400 may be provided with the protection portion 430, so that the circuit can be disconnected when the current is too large.
The unit cell further includes an insulating member 500, and the protective portion 430 is covered with the insulating member 500.
For example, as shown in fig. 4, the unit cell further includes an insulating member 500, and the insulating member 500 covers the protection part 430. Referring to fig. 3, the protection part 430 is provided with a through hole 431, when the current is too large, the parts of the protection part 430 at the two sides of the through hole 431 can be fused, the insulation member 500 can fix the protection part 430, and the two sides of the fused part are prevented from being overlapped again to cause ignition after the parts of the protection part 430 at the two sides of the through hole 431 are fused; in addition, the strength of the protection part 430 is reduced after the through hole 431 is formed, and the insulation member 500 can support the protection part 430, so that the protection part 430 is prevented from being bent in the production process, and the product is prevented from being poor.
It is understood that the insulating member 500 may be formed by injecting an insulating material into the position of the protection portion 430 through an injection molding process, and the material of the insulating member 500 is not limited and may be selected according to actual requirements, for example, a polypropylene material may be used, and the polypropylene material has chemical resistance, heat resistance and high-strength mechanical properties, and can ensure the strength and safety of the pole connecting plate 400 during use.
It should be noted that the battery cell includes a plurality of battery cells 300, the battery cells 300 are electrically connected to each other, the positive tab 310 of at least one battery cell 300 is connected to the tab connection portion 420 of one terminal connection plate 400, and the negative tab 320 of at least one battery cell 300 is connected to the tab connection portion 420 of another terminal connection plate 400.
For example, as shown in fig. 1 and fig. 7 to 9, a single battery includes a plurality of battery cells 300, the plurality of battery cells 300 are electrically connected to each other, and the following is described in three specific embodiments with reference to fig. 7 to 9, it is to be understood that the following embodiments are not to be taken as a limitation to the present solution:
referring to fig. 1, two battery cells 300 are arranged in a row, the positive electrode tabs 310 of the two battery cells 300 are both connected to the tab connection portion 420 of one terminal tab 400, the negative electrode tabs 320 of the two battery cells 300 are both connected to the tab connection portion 420 of the other terminal tab 400, and the two battery cells 300 are connected in parallel.
Referring to fig. 7, four battery cells 300 are sequentially arranged in a direction from the positive pole 210 to the negative pole 220, the positive pole tab 310 of one battery cell 300 located at the end where the positive pole 210 is located is connected to the tab connection portion 420 of one pole connection piece 400, the negative pole tab 320 of one battery cell 300 located at the end where the negative pole 220 is located is connected to the tab connection portion 420 of the other pole connection piece 400, and the four battery cells 300 are connected in series.
Referring to fig. 8 and 9, eight battery cells 300 are arranged in an array of two rows and four columns, four battery cells 300 in each row are sequentially arranged along a direction from the positive pole 210 to the negative pole 220, the positive pole tabs 310 of two battery cells 300 located at one end where the positive pole 210 is located are connected to the tab connection portion 420 of one pole connection piece 400, the negative pole tabs 320 of two battery cells 300 located at one end where the negative pole 220 is located are connected to the tab connection portion 420 of another pole connection piece 400, four battery cells 300 in each row in fig. 8 are connected in series, and two rows of battery cells 300 are connected in parallel with each other through two pole connection pieces 400; in fig. 9, two cells 300 in each column are connected in parallel with each other, and four columns of cells 300 are connected in series with each other.
The arrangement of the plurality of electrically interconnected cells 300 in the same cell is actually equivalent to the electrical interconnection of a plurality of cells having only one cell 300, which can improve the energy density of a single cell, reduce the number of parts, and reduce the cost.
It can be understood that the number and the arrangement form of the battery cells 300 are not limited to the schemes shown in fig. 1, fig. 7 to fig. 9, and may be set according to actual requirements.
It should be noted that the single battery further includes an internal connection sheet 600, and the different battery cells 300 are electrically connected through the internal connection sheet 600.
For example, as shown in fig. 7 to 9, the unit cell further includes an internal connection tab 600, and the different battery cells 300 are electrically connected by the internal connection tab 600. Internal connection piece 600 is convenient for install, can improve the installation effectiveness.
It is understood that the connection mode of the internal connection sheet 600 and each battery cell 300 can be set according to the connection mode required by the battery cell 300, and the following description is provided in three specific embodiments with reference to fig. 7 to 9, and it should be understood that the following embodiments are not intended to limit the present solution:
referring to fig. 7, four battery cells 300 are sequentially arranged in a direction from the positive post 210 to the negative post 220, one end of the internal connection tab 600 is connected to the negative tab 320 of one battery cell 300, the other end is connected to the positive tab 310 of the adjacent battery cell 300, and the four battery cells 300 are connected in series with each other through the internal connection tab 600.
Referring to fig. 8, eight battery cells 300 are arranged in an array of two rows and four columns, four battery cells 300 in each row are all arranged in sequence along the direction from the positive post 210 to the negative post 220, two ends of the internal connection sheet 600 are connected to two adjacent battery cells 300 in the same row respectively, one end of each internal connection sheet is connected to the negative tab 320 of one battery cell 300, the other end of each internal connection sheet is connected to the positive tab 310 of the adjacent battery cell 300, the four battery cells 300 in each row are all connected in series with each other through the internal connection sheet 600, and the two rows of battery cells 300 are connected in parallel with each other through the two post connection sheets 400.
Referring to fig. 9, eight electric cores 300 are arranged in an array of two rows and four columns, four electric cores 300 in each row are all arranged in sequence along the direction from positive pole 210 to negative pole 220, internal connection piece 600 can be connected and arranged into two rows and two columns of four electric cores 300, one end of internal connection piece 600 is connected to two negative pole ears 320 of electric cores 300 in the same column, the other end is connected to two positive pole ears 310 of electric cores 300 in the other column, two electric cores 300 in each column are all through two internal connection pieces 600, or, one internal connection piece 600 and one pole connection piece 400 are connected in parallel, four columns of electric cores 300 are connected in series through internal connection piece 600.
It can be understood that the internal connection tab 600 and the positive tab 310 or the negative tab 320 can be connected to each other by welding, and the specific welding manner is not limited, and ultrasonic welding, laser welding, etc. can be selected according to actual situations.
It should be noted that the casing 100 includes a casing 110 and a partition 120, the partition 120 is accommodated inside the casing 110 and connected to the casing 110, and the partition 120 is used for partitioning the plurality of battery cells 300.
For example, as shown in fig. 1, 7 to 9, the casing 100 includes a casing 110 and a separator 120, the separator 120 is accommodated inside the casing 110 and connected to the casing 110, and the separator 120 is used for separating a plurality of battery cells 300. The separator 120 can restrict the expansion deformation of the battery cell 300, and improve the reliability and safety of the battery cell 300.
It is understood that the number of the separators 120 is not limited, and may be set according to actual requirements, for example, only one separator 120 may be provided to separate a part of the battery cells 300 from another part of the battery cells 300, a plurality of separators 120 may also be provided to separate a plurality of battery cells 300 into a plurality of groups, or a plurality of separators 120 may also be provided to separate each of the battery cells 300.
It should be noted that the casing 100 includes a plurality of partition boards 120, the plurality of partition boards 120 define a plurality of accommodating spaces a inside the casing 110, the number of the accommodating spaces a is equal to the number of the battery cells 300, and the plurality of battery cells 300 are accommodated in the plurality of accommodating spaces a in a one-to-one correspondence manner.
For example, as shown in fig. 7 to 9, the casing 100 includes a plurality of partition boards 120, the plurality of partition boards 120 define a plurality of accommodating spaces a inside the casing 110, the number of the accommodating spaces a is equal to the number of the battery cells 300, the plurality of battery cells 300 are accommodated in the plurality of accommodating spaces a in a one-to-one correspondence manner, expansion and deformation of each battery cell 300 in each direction can be limited by the casing 110 and the partition boards 120, an effect of limiting expansion and deformation of the battery cells 300 can be further improved, and reliability and safety of the battery cells 300 can be further improved.
It can be understood that, for a single battery with only two battery cells 300, referring to fig. 1, the casing 100 is provided with only one partition 120, two accommodating spaces a are defined inside the casing 110, and the two battery cells 300 are respectively provided in the two accommodating spaces a; for a single battery having more than two battery cells 300, referring to fig. 7 to 9, a plurality of partition boards 120 should be disposed, an accommodating space a with the same number as that of the battery cells 300 is defined inside the casing 110, and the battery cells 300 are disposed in the accommodating spaces a in a one-to-one correspondence manner.
The single battery further includes an insulating film 700, and the insulating film 700 covers the body 330.
For example, as shown in fig. 1, 5, and 7 to 9, the single battery further includes an insulating film 700, and the insulating film 700 covers the body 330 to prevent the short circuit caused by the contact between the different battery cells 300.
It should be noted that the single battery further includes a bottom bracket plate 800, and the bottom bracket plate 800 is connected to one end of the body 330 far from the top cover 200.
For example, as shown in fig. 1, 5, and 7 to 9, the battery cell further includes a bottom plate 800, the bottom plate 800 is connected to one end of the body 330 away from the top cover 200, and the bottom plate 800 is used to isolate the battery cell 300 from the casing 100, so as to prevent the battery cell 300 from contacting the metal casing 100 and causing a short circuit.
The battery module provided by the embodiment of the second aspect of the present application includes a plurality of single batteries provided in the embodiments, and the plurality of single batteries are electrically connected; the baffle is provided with a plurality ofly, and the baffle sets up between adjacent battery cell.
The single battery with high charging and discharging multiplying power is adopted, so that the charging and discharging multiplying power of the battery module can be improved, and the requirement of quick charging and discharging is met.
It can be understood that the battery module may further include a fixing member such as a ribbon or a fixing frame for fixing the plurality of unit batteries in a group, and may further include a heat dissipating member such as an air cooling assembly or a water cooling assembly, which may be set by one of ordinary skill in the art according to actual requirements.
The battery pack provided by the third aspect of the present application includes a case and the battery module provided by any of the above embodiments, where the battery module is accommodated in the case.
The battery module with higher charging and discharging multiplying power is adopted, so that the charging and discharging multiplying power of the battery pack can be improved, and the requirement of quick charging and discharging is met.
It can be understood that the battery pack may include a plurality of battery modules electrically connected to each other, and may further include components such as a control module, a connector, and a bus bar, which may be set by one of ordinary skill in the art according to actual needs.
The embodiments of the present application have been described in detail with reference to the drawings, but the present application is not limited to the embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present application. Furthermore, the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
Claims (10)
1. A battery cell, comprising:
a housing;
the top cover comprises a positive pole, a negative pole and a cover body, the positive pole and the negative pole are arranged on the cover body in a penetrating mode, and the cover body is buckled on the shell to seal the shell;
the battery cell comprises a plurality of positive lugs, a plurality of negative lugs and a body, wherein the positive lugs are connected with the body, the negative lugs are connected with the body, and the battery cell is accommodated in the shell;
the pole connecting sheet comprises a pole connecting part and a plurality of pole lug connecting parts, the pole lug connecting parts are all connected to the pole connecting part, and the pole lug connecting parts are arranged on two sides of the pole connecting part;
the pole connecting piece is at least provided with two, one of the two pole connecting pieces is connected with the positive pole and the pole connecting piece is connected with the positive pole and the pole lug connecting piece is connected with the positive pole lug and the other pole connecting piece is connected with the negative pole and the pole lug connecting piece is connected with the negative pole lug.
2. The battery cell according to claim 1, wherein a plurality of the tab connection parts are symmetrically disposed at both sides of the pole connection part.
3. The single battery according to claim 1, wherein the post connecting sheet further comprises a plurality of protection parts, the protection parts are arranged on two sides of the post connecting part, the protection parts are arranged between the post connecting part and the tab connecting part, and the protection parts are provided with through holes.
4. The battery cell according to claim 3, further comprising an insulating member covering the protective portion.
5. The battery cell of claim 1, comprising a plurality of the cells electrically connected to each other, wherein the positive tab of at least one of the cells is connected to the tab connection portion of one of the terminal connection pieces, and the negative tab of at least one of the cells is connected to the tab connection portion of another one of the terminal connection pieces.
6. The battery cell of claim 5, further comprising internal connection tabs by which different cells are electrically connected.
7. The battery cell as claimed in claim 5, wherein the housing comprises a casing and a separator housed inside and connected to the casing, the separator being configured to separate the plurality of cells.
8. The battery cell according to claim 7, wherein the housing includes a plurality of the partition plates, the plurality of the partition plates define a plurality of accommodating spaces in the casing, the number of the accommodating spaces is equal to the number of the battery cells, and the plurality of the battery cells are accommodated in the plurality of accommodating spaces in a one-to-one correspondence manner.
9. Battery module, its characterized in that includes:
the unit cell of any one of claims 1 to 8, which is provided in plurality, a plurality of the unit cells being electrically connected;
the separator, the separator is provided with a plurality ofly, the separator sets up in adjacent between the battery cell.
10. A battery pack, comprising:
a box body;
the battery module according to claim 9, wherein the battery module is accommodated in the case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122153072.8U CN216213802U (en) | 2021-09-07 | 2021-09-07 | Single battery, battery module and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122153072.8U CN216213802U (en) | 2021-09-07 | 2021-09-07 | Single battery, battery module and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216213802U true CN216213802U (en) | 2022-04-05 |
Family
ID=80917951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122153072.8U Active CN216213802U (en) | 2021-09-07 | 2021-09-07 | Single battery, battery module and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216213802U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115312989A (en) * | 2022-09-09 | 2022-11-08 | 厦门海辰储能科技股份有限公司 | Battery connecting sheet and assembly method thereof, battery pack and electric equipment |
-
2021
- 2021-09-07 CN CN202122153072.8U patent/CN216213802U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115312989A (en) * | 2022-09-09 | 2022-11-08 | 厦门海辰储能科技股份有限公司 | Battery connecting sheet and assembly method thereof, battery pack and electric equipment |
| CN115312989B (en) * | 2022-09-09 | 2023-09-08 | 厦门海辰储能科技股份有限公司 | Battery connecting sheet, assembling method thereof, battery pack and electric equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11462799B2 (en) | Battery module having gas discharge structure | |
| CN113764799A (en) | Single battery, battery module and battery pack | |
| JP5259599B2 (en) | Battery module interface | |
| KR101041153B1 (en) | Rechargeable battery and module thereof | |
| KR101371212B1 (en) | Battery module and cell-cartridge for battery module | |
| JP7048838B2 (en) | Battery module and battery pack with busbar | |
| KR20190096674A (en) | Bus Bar Having Current Interruption Part and Battery Module Having the Same | |
| CN111883731A (en) | Battery structure and battery module | |
| KR20210000260A (en) | Battery Pack Having Cover Structure and Electronic Device and Vehicle | |
| US20220285755A1 (en) | Top Cooling Type Battery Pack | |
| EP3694016B1 (en) | Secondary battery pack including cell frame with coating prevention part | |
| CN102763241A (en) | Cell module | |
| CN216213802U (en) | Single battery, battery module and battery pack | |
| US10930908B2 (en) | Battery module housing, battery module, battery pack, battery and vehicle, and also method for producing a battery module, a battery pack and a battery | |
| WO2023216324A1 (en) | Battery cell group, battery module and assembly method | |
| JP7491939B2 (en) | Battery, electrical device, and battery manufacturing method and device | |
| CN115425353A (en) | Battery, battery module and have its vehicle | |
| CN111668435A (en) | Vehicle-mounted battery and vehicle with same | |
| CN215451610U (en) | Battery module and battery pack | |
| CN115968515A (en) | Battery, electric equipment, method and equipment for preparing battery | |
| CN217468696U (en) | Battery pack and vehicle with same | |
| CN114094285B (en) | Single-side pole long battery and electric energy storage device | |
| KR20210003599A (en) | Battery Pack Having Connection Plate and Electronic Device and Vehicle | |
| CN212587687U (en) | Battery structure and battery module | |
| CN218996881U (en) | Soft package battery and battery package |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 518000 1-2 Floor, Building A, Xinwangda Industrial Park, No. 18 Tangjianan Road, Gongming Street, Guangming New District, Shenzhen City, Guangdong Province Patentee after: Xinwangda Power Technology Co.,Ltd. Address before: 518000 Xinwangda Industrial Park, No.18, Tangjia south, Gongming street, Guangming New District, Shenzhen City, Guangdong Province Patentee before: SUNWODA ELECTRIC VEHICLE BATTERY Co.,Ltd. |