CN210723105U - A casing, battery monomer and battery package for battery monomer - Google Patents
A casing, battery monomer and battery package for battery monomer Download PDFInfo
- Publication number
- CN210723105U CN210723105U CN201922074028.0U CN201922074028U CN210723105U CN 210723105 U CN210723105 U CN 210723105U CN 201922074028 U CN201922074028 U CN 201922074028U CN 210723105 U CN210723105 U CN 210723105U
- Authority
- CN
- China
- Prior art keywords
- connecting portion
- sub
- battery
- upper cover
- battery cell
- 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
- Battery Mounting, Suspending (AREA)
Abstract
The utility model provides a be used for free casing of battery, battery monomer and battery package for the free casing of battery includes: the battery shell comprises a shell body, wherein one end of the shell body is provided with a cover plate mounting opening, one end of the shell body is provided with a mounting step, the mounting step is constructed with a weakening structure, and the mounting step is suitable for being fixed with an upper cover of a battery monomer. From this, through setting up the installation step, can be convenient for the assembly of upper cover and casing body, can promote the assembly rate of upper cover and casing body.
Description
Cross Reference to Related Applications
The present application claims priority from the chinese patent application No. 201920808191.2, filed by the cellular energy technology ltd on 30/05/2019 under the title "housing for battery cell, battery cell and battery pack".
Technical Field
The utility model relates to a battery technology field, in particular to be used for free casing of battery, battery monomer and battery package.
Background
In the related art, in the production process of the lithium ion battery, the upper cover and the shell are generally welded together by laser, the laser welding mode has high requirements on materials, and if the surface brightness of the welding material is too high or the roughness is low, the high reflection phenomenon is easily generated, so that the defects are caused, and the optical fiber can be burnt in serious conditions. If a galvanometer welding mode is adopted, the high-reflection phenomenon can be avoided, but the consistency of the welding penetration and the melting width is poor, and the welding precision is low. In addition, during the welding process, the welding track is easy to deviate, and the welding rate is low. Meanwhile, photoelectric conversion efficiency of the mainstream laser welding machine in the market is lower than 40%, energy utilization rate is lower, more metal dust is generated in the welding process, the product quality is influenced, and the dust removal device increases equipment cost. In addition, a large amount of heat is generated in the welding process, and the structural part is damaged by a heat affected zone, so that great potential safety hazards are caused. In the process of assembling the lithium ion battery, the butt joint precision of the upper cover and the shell is not high, so that the assembling efficiency is reduced.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention is directed to a housing for a battery cell, so as to solve the problem of low assembly efficiency of the battery cell.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a housing for a battery cell comprising: the battery shell comprises a shell body, wherein one end of the shell body is provided with a cover plate mounting opening, one end of the shell body is provided with a mounting step, the mounting step is constructed with a weakening structure, and the mounting step is suitable for being fixed with an upper cover of a battery monomer.
In some examples of the invention, the mounting step comprises: the first connecting portion is connected between the housing body and the second connecting portion, and the weakening structure is formed on the first connecting portion.
In some examples of the invention, a thickness of at least a portion of the first connection portion is reduced to form the weakened structure.
In some examples of the invention, the first connection portion comprises: the shell comprises a shell body, a first sub-connecting portion, a second sub-connecting portion and a third sub-connecting portion, wherein the first sub-connecting portion is connected between the shell body and the second sub-connecting portion, the second sub-connecting portion is connected between the first sub-connecting portion and the third sub-connecting portion, the third sub-connecting portion is connected between the second sub-connecting portion and the second connecting portion, and the thickness of the second sub-connecting portion is smaller than that of the first sub-connecting portion and that of the third sub-connecting portion.
In some examples of the present invention, the first connection portion is formed by skiving and stretching.
In some examples of the invention, the first connecting portion extends toward a direction away from a center of the case body such that the second connecting portion protrudes out of an outer surface of the case body.
Compared with the prior art, a casing for battery monomer have following advantage:
according to the utility model discloses a be used for free casing of battery, through setting up the installation step, the upper cover of can being convenient for and the assembly of casing body can promote the assembly speed of upper cover and casing body.
Another object of the present invention is to provide a battery cell.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a battery monomer comprises the shell and an upper cover for the battery monomer, wherein the upper cover is arranged on the cover plate mounting opening.
In some examples of the invention, the upper cover is welded to the mounting step.
In some examples of the present invention, the upper cover is welded to the mounting step, and the outer surface of the second connecting portion is flush with the outer surface of the housing body.
The advantages of the battery cell and the housing for the battery cell are the same as those of the prior art, and are not described herein again.
Another object of the present invention is to provide a battery pack.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a battery pack comprises the battery cell.
The advantages of the battery pack and the housing for the battery cell are the same as those of the prior art, and are not described herein again.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a front view of a battery cell according to an embodiment of the present invention;
fig. 2 is a side view of a battery cell according to an embodiment of the present invention;
fig. 3 is a schematic view of a housing of a battery cell according to an embodiment of the present invention;
fig. 4 is a sectional view of a mounting step of a housing of a battery cell according to an embodiment of the present invention;
fig. 5 is a schematic view of an upper cover of a battery cell according to an embodiment of the present invention.
Description of reference numerals:
a housing 10;
a housing body 1;
a cover plate mounting port 11;
mounting a step 12; a first connection portion 121; a second connecting portion 122; the first sub-connection portion 123; the second sub-connection portion 124; the third sub-connection portion 125;
an upper cover 3;
the battery cell 20.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 to 5, a case 10 for a battery cell 20 according to an embodiment of the present invention includes: the battery pack comprises a housing body 1, wherein one end of the housing body 1 is provided with a cover plate mounting opening 11, one end of the housing body 1 is provided with a mounting step 12, namely, the end part of the cover plate mounting opening 11 is provided with the cover plate mounting opening 11, the mounting step 12 is provided with a weakening structure, and the mounting step 12 is suitable for being fixed with an upper cover 3 of a battery cell 20.
Wherein, when assembling casing body 1 and the upper cover 3 of battery monomer 20, upper cover 3 is placed in apron installing port 11 department, through setting up installation step 12, can reduce casing body 1 and the alignment precision of upper cover 3, can be convenient for the assembly of upper cover 3 and casing body 1 to can promote the assembly rate of upper cover 3 and casing body 1. Moreover, after the assembly of the housing body 1 and the upper cover 3 is completed, the housing 10 can be prevented from generating an abnormal shape by providing the weakening structure on the mounting step 12, so that the flatness of the housing 10 can be ensured.
From this, through setting up installation step 12, can be convenient for the assembly of upper cover 3 and casing body 1, can promote the assembly rate of upper cover 3 and casing body 1.
In some embodiments of the present invention, as shown in fig. 4, the mounting step 12 may include: a first connection part 121 and a second connection part 122, the first connection part 121 is connected between the housing body 1 and the second connection part 122, and a weakening structure is formed on the first connection part 121, wherein, due to the fixed connection of the second connection part 122 of the upper cover 3, after the assembly of the upper cover 3 and the second connection part 122 is completed, the surface of the housing 10 can be made more flat by changing the shape and position of the first connection part 121.
In some embodiments of the present invention, the thickness of at least a part of the first connecting portion 121 is reduced, so that the weakening structure can be formed on the first connecting portion 121, thereby achieving the purpose of the work of setting the weakening structure, and the structure of the weakening structure can be made simpler, thereby facilitating the setting of the weakening structure.
In some embodiments of the present invention, as shown in fig. 4, the first connection portion 121 may include: the first sub-connection portion 123 is connected between the housing body 1 and the second sub-connection portion 124, the second sub-connection portion 124 is connected between the first sub-connection portion 123 and the third sub-connection portion 125, the third sub-connection portion 125 is connected between the second sub-connection portion 124 and the second connection portion 122, and the thickness of the second sub-connection portion 124 is smaller than the thickness of the first sub-connection portion 123 and the third sub-connection portion 125.
The first sub-connection portion 123, the second sub-connection portion 124, and the third sub-connection portion 125 may all be configured in an arc structure, an average thickness of the first sub-connection portion 123 may be set to 55.6% of a thickness of the housing body 1, an average thickness of the second sub-connection portion 124 may be set to 39.9% of the thickness of the housing body 1, and an average thickness of the third sub-connection portion 125 may be set to 95.5% of the thickness of the housing body 1, so that the thicknesses of the first sub-connection portion 123, the second sub-connection portion 124, and the third sub-connection portion 125 can be more reasonable, the structural strength of the first sub-connection portion 123, the second sub-connection portion 124, and the third sub-connection portion 125 can be ensured, and thus the first sub-connection portion 123, the second sub-connection portion 124, and the third.
In some embodiments of the present invention, the first connecting portion 121 may be formed by thinning and stretching, so that the manufacturing process of the first connecting portion 121 is simpler, and the manufacturing process can be simplified, thereby facilitating the production and manufacture of the first connecting portion 121.
In some embodiments of the present invention, the first connecting portion 121 is extended toward the direction away from the center of the housing body 1, so that the second connecting portion 122 protrudes out of the outer surface of the housing body 1, and the upper cover 3 can be conveniently placed at the cover plate mounting opening 11, thereby further improving the assembly efficiency of the upper cover 3 and the housing body 1.
As shown in fig. 1 to 5, a battery cell 20 according to an embodiment of the present invention includes: the upper cover 3 and the housing 10 of the above embodiment, the upper cover 3 is disposed at the cover mounting opening 11, the width of the joint between the upper cover 3 and the cover mounting opening 11 is 0.5-3mm, and the material of the joint between the upper cover 3 and the cover mounting opening 11 may be the same as the material of the housing body 1, for example: may be aluminum. Wherein, when assembling casing body 1 and the upper cover 3 of battery monomer 20, upper cover 3 is placed in apron installing port 11 department, through setting up installation step 12, can reduce casing body 1 and the alignment precision of upper cover 3, can be convenient for the assembly of upper cover 3 and casing body 1 to can promote the assembly rate of upper cover 3 and casing body 1. Moreover, after the assembly of the housing body 1 and the upper cover 3 is completed, the housing 10 can be prevented from generating an abnormal shape by providing the weakening structure on the mounting step 12, so that the flatness of the housing 10 can be ensured.
The utility model discloses an in some embodiments, upper cover 3 and installation step 12 welding, wherein, upper cover 3 and installation step 12 can adopt the mode welding of electromagnetic pulse welding together, and weld gap can be for 0.1-3mm, and electromagnetic pulse welding is low to welding material's requirement, can avoid taking place of high anti-phenomenon, can prevent to cause the welding bad to can promote welding quality. In addition, the electromagnetic pulse welding has low requirement on welding preparation precision, and can ensure the welding precision of the upper cover 3 and the mounting step 12. Meanwhile, the electromagnetic pulse welding has no heat input, and has no heat influence area on parts in the battery monomer 20, so that the safety in the production process can be improved. In addition, the welding time of electromagnetic pulse welding is short, the welding process is completed within 3-5 seconds, the production efficiency can be effectively improved, the energy utilization rate can be improved, the energy waste can be avoided, and the purpose of zero pollution and zero emission can be realized.
The utility model discloses an in some embodiments, installation step 12 can be through milling machine-shaping, and so set up the shaping that can make installation step 12 simpler, can further promote the production efficiency of installation step 12.
In some embodiments of the present invention, after the upper cover 3 is welded to the mounting step 12, the outer surface of the second connecting portion 122 is flush with the outer surface of the housing body 1, so as to better prevent the housing 10 from generating abnormal shape, and further improve the flatness of the housing 10.
According to the utility model discloses battery pack, including the battery monomer 20 of above-mentioned embodiment, battery monomer 20 sets up and installs on battery pack, and this battery monomer 20 can be convenient for the assembly of upper cover 3 and casing body 1, can promote the assembly speed of upper cover 3 and casing body 1.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A housing for a battery cell, comprising:
the battery shell comprises a shell body, wherein one end of the shell body is provided with a cover plate mounting opening, one end of the shell body is provided with a mounting step, the mounting step is constructed with a weakening structure, and the mounting step is suitable for being fixed with an upper cover of a battery monomer.
2. The housing for a battery cell as in claim 1, wherein the mounting step comprises: the first connecting portion is connected between the housing body and the second connecting portion, and the weakening structure is formed on the first connecting portion.
3. The case for battery cells as claimed in claim 2, wherein at least a portion of the first connection portion is thinned to form the weakening structure.
4. The housing for a battery cell as recited in claim 2, wherein the first connection portion comprises: the shell comprises a shell body, a first sub-connecting portion, a second sub-connecting portion and a third sub-connecting portion, wherein the first sub-connecting portion is connected between the shell body and the second sub-connecting portion, the second sub-connecting portion is connected between the first sub-connecting portion and the third sub-connecting portion, the third sub-connecting portion is connected between the second sub-connecting portion and the second connecting portion, and the thickness of the second sub-connecting portion is smaller than that of the first sub-connecting portion and that of the third sub-connecting portion.
5. The case for battery cells as claimed in claim 2, wherein the first connection part is formed by skiving and stretching.
6. The case for battery cells as claimed in claim 2, wherein the first connection part extends in a direction away from the center of the case body such that the second connection part protrudes out of the outer surface of the case body.
7. A battery cell, comprising:
the housing for a battery cell of any one of claims 2-6;
and the upper cover is arranged at the cover plate mounting opening.
8. The battery cell as recited in claim 7 wherein the upper cover is welded to the mounting step.
9. The battery cell as recited in claim 8, wherein after the upper cover is welded to the mounting step, an outer surface of the second connecting portion is flush with an outer surface of the case body.
10. A battery pack comprising the battery cell according to any one of claims 7 to 9.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019208081912 | 2019-05-30 | ||
| CN201920808191 | 2019-05-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210723105U true CN210723105U (en) | 2020-06-09 |
Family
ID=70937925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922074028.0U Active CN210723105U (en) | 2019-05-30 | 2019-11-26 | A casing, battery monomer and battery package for battery monomer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210723105U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023133673A1 (en) * | 2022-01-11 | 2023-07-20 | 宁德时代新能源科技股份有限公司 | Battery casing structure and manufacturing method therefor, battery, and electric device |
| WO2023133806A1 (en) * | 2022-01-14 | 2023-07-20 | 宁德时代新能源科技股份有限公司 | Battery cell and manufacturing method and system therefor, battery and electric device |
-
2019
- 2019-11-26 CN CN201922074028.0U patent/CN210723105U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023133673A1 (en) * | 2022-01-11 | 2023-07-20 | 宁德时代新能源科技股份有限公司 | Battery casing structure and manufacturing method therefor, battery, and electric device |
| WO2023133806A1 (en) * | 2022-01-14 | 2023-07-20 | 宁德时代新能源科技股份有限公司 | Battery cell and manufacturing method and system therefor, battery and electric device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7867644B2 (en) | Secondary battery and secondary battery manufacturing method | |
| CN210723105U (en) | A casing, battery monomer and battery package for battery monomer | |
| CN215731935U (en) | Battery case and battery | |
| CN115663362B (en) | Battery cover plate and battery | |
| KR20210072823A (en) | Electrode Assemblies and Batteries | |
| US11335982B2 (en) | Battery module | |
| JP4743985B2 (en) | Battery manufacturing method | |
| CN117638336B (en) | Battery case and power battery | |
| JP6213784B2 (en) | Sealed battery | |
| CN108649176A (en) | A kind of cell cathode ear pole of high-energy density and preparation method thereof | |
| CN218311729U (en) | Square battery welding jig | |
| CN109148938B (en) | Battery welding method and battery | |
| CN218182384U (en) | Battery device | |
| EP3694013A1 (en) | Secondary battery and battery module | |
| CN212991193U (en) | End plate for battery module and battery module | |
| KR20010008566A (en) | Cap assembly used in Secondary battery and method for making the same | |
| CN219575768U (en) | Secondary lithium battery and electronic product | |
| CN218101637U (en) | Pole and battery | |
| CN217182378U (en) | Copper-aluminum composite adapter sheet, top cover assembly and battery | |
| KR20210034963A (en) | Method for manufacturing cylindrical secondary battery | |
| CN216288744U (en) | Metal battery shell and battery | |
| CN217281052U (en) | Module frame and battery module | |
| CN216720124U (en) | Battery module | |
| CN218586265U (en) | Battery pack | |
| CN217035905U (en) | Lithium battery connecting sheet structure and lithium battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |