CN117855774B - Sealing structure and battery - Google Patents
Sealing structure and battery Download PDFInfo
- Publication number
- CN117855774B CN117855774B CN202410259358.XA CN202410259358A CN117855774B CN 117855774 B CN117855774 B CN 117855774B CN 202410259358 A CN202410259358 A CN 202410259358A CN 117855774 B CN117855774 B CN 117855774B
- Authority
- CN
- China
- Prior art keywords
- sealing
- injection hole
- cover
- liquid injection
- sealing ring
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 148
- 238000002347 injection Methods 0.000 claims abstract description 49
- 239000007924 injection Substances 0.000 claims abstract description 49
- 239000007788 liquid Substances 0.000 claims abstract description 44
- 230000006835 compression Effects 0.000 claims abstract description 17
- 238000007906 compression Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 abstract description 19
- 238000003466 welding Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 description 16
- 229910052782 aluminium Inorganic materials 0.000 description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 10
- 230000009286 beneficial effect Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 239000003792 electrolyte Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
- H01M50/609—Arrangements or processes for filling with liquid, e.g. electrolytes
- H01M50/627—Filling ports
- H01M50/636—Closing or sealing filling ports, e.g. using lids
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Filling, Topping-Up Batteries (AREA)
Abstract
本发明涉及电池密封技术领域，公开了密封结构及电池，包括：盖板，沿盖板的厚度方向贯通设置有注液孔，位于注液孔的孔口下侧的孔壁朝向注液孔的中心方向凸出以形成台阶结构；密封圈，对应注液孔的孔口设置且设置于台阶结构上；密封盖，盖设于注液孔的孔口且设置于密封圈上；翻边凸台，凸出设置于盖板的上表面并围绕注液孔的孔口设置，翻边凸台远离盖板的一侧向内翻折并铆压于密封盖上，以使密封盖按压密封圈。本发明利用密封圈在密封盖和注液孔之间进行密封，并采用翻边铆压工艺代替现有技术中的激光焊接工艺，实现密封盖的限位固定以及密封圈的压缩，简化了密封工序，密封工艺简单且可靠，降低失效风险。
The present invention relates to the technical field of battery sealing, and discloses a sealing structure and a battery, including: a cover plate, a liquid injection hole is provided through the cover plate along the thickness direction, and the hole wall located at the lower side of the hole opening of the liquid injection hole protrudes toward the center direction of the liquid injection hole to form a step structure; a sealing ring, which is provided corresponding to the hole opening of the liquid injection hole and is provided on the step structure; a sealing cover, which is provided to cover the hole opening of the liquid injection hole and is provided on the sealing ring; a flanged boss, which is provided protrudingly on the upper surface of the cover plate and is provided around the hole opening of the liquid injection hole, and the side of the flanged boss away from the cover plate is folded inward and riveted on the sealing cover, so that the sealing cover presses the sealing ring. The present invention uses a sealing ring to seal between the sealing cover and the liquid injection hole, and adopts a flanged riveting process instead of the laser welding process in the prior art to achieve the limiting fixation of the sealing cover and the compression of the sealing ring, which simplifies the sealing process, and the sealing process is simple and reliable, reducing the risk of failure.
Description
Technical Field
The invention relates to the technical field of battery sealing, in particular to a sealing structure and a battery.
Background
After the battery is filled with the liquid, the liquid filling hole needs to be sealed. In the prior art, glue nails are generally plugged into the liquid injection holes, then the aluminum cover is used for covering the liquid injection holes, and the aluminum cover and the aluminum plate are welded to achieve the sealing effect on the liquid injection holes. However, the sealing mode has complex procedures, the quality and the welding uniformity of the welding part of the aluminum cover and the aluminum plate are difficult to control, the sealing reliability is poor, and the failure risk is high.
Disclosure of Invention
In view of the above, the invention provides a sealing structure and a battery to solve the problems that the existing liquid injection hole sealing mode has complex working procedures, the quality and the welding uniformity of the welding position of an aluminum cover and an aluminum plate are difficult to control, the sealing reliability is poor, and the failure risk is high.
In a first aspect, the present invention provides a sealing structure comprising: the cover plate is provided with a liquid injection hole in a penetrating manner along the thickness direction of the cover plate, and the hole wall at the lower side of the hole opening of the liquid injection hole protrudes towards the center direction of the liquid injection hole to form a step structure; the sealing ring is arranged corresponding to the orifice of the liquid injection hole and is arranged on the step structure; the sealing cover is covered on the orifice of the liquid injection hole and arranged on the sealing ring; the flange boss is arranged on the upper surface of the cover plate in a protruding mode and surrounds the orifice of the liquid injection hole, and one side, away from the cover plate, of the flange boss is turned inwards and is riveted on the sealing cover, so that the sealing cover presses the sealing ring; the turnover length h of the flanging boss is more than or equal to 1.5mm; the thickness of the flanging boss is g, and g is more than or equal to 0.3mm and less than or equal to 5mm.
The beneficial effects are that: the sealing ring is used for sealing between the sealing cover and the liquid injection hole, and a flanging riveting process is used for replacing a laser welding process in the prior art, so that the limiting fixation of the sealing cover and the compression of the sealing ring are realized, the sealing process is simplified, the sealing process is simple and reliable, and the failure risk is reduced; the fixed strength of the flanging boss after riveting the sealing cover is ensured, and the compression effect of the sealing ring is ensured; the flange boss is convenient to turn over, and meanwhile, the fixing strength of the flange boss after riveting the sealing cover is guaranteed.
In an alternative embodiment, the diameter of the sealing ring is phia, and phia is more than or equal to 2mm.
The beneficial effects are that: the sealing ring is ensured to be capable of realizing effective sealing.
In an alternative embodiment, the sealing ring is compressed by d under the pressing of the sealing cover, and the compression amount of the sealing ring is less than or equal to 20% and less than or equal to 50% d/phia.
The beneficial effects are that: the transitional compression failure of the sealing ring is avoided while the sealing ring is ensured to have enough sealing effect.
In an alternative embodiment, the distance between the inner ring of the sealing ring and the edge of the step structure is k, satisfying k > d+1mm.
The beneficial effects are that: the sealing ring is completely positioned on the step structure, and the sealing ring is prevented from extending into the liquid injection hole after compression deformation, so that the sealing effect is prevented from being influenced.
In an alternative embodiment, the diameter of the sealing cover is phi e, the orifice diameter of the liquid injection hole is phi f, and 0 < phi f-phi e is less than or equal to 0.5mm.
The beneficial effects are that: the sealing effect of the sealing ring is ensured while the sealing cover can be smoothly arranged in the liquid injection hole.
In an alternative embodiment, the diameter of the liquid injection hole at the edge of the step structure is phi c, and 1mm less than or equal to phi c less than or equal to 10mm is satisfied.
The beneficial effects are that: the arrangement of other parts on the cover plate is avoided while the electrolyte injection speed is ensured.
In an alternative embodiment, the thickness of the sealing cover is b, and b is 0.3 mm.ltoreq.b.ltoreq.2 mm.
The beneficial effects are that: and the sealing cover is ensured to have enough structural strength, and meanwhile, the waste of materials is avoided.
In a second aspect, the invention also provides a battery, comprising the sealing structure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a top view of a seal structure according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along the direction A-A in FIG. 1;
FIG. 3 is an enlarged partial schematic view of B in FIG. 2;
fig. 4 is an exploded view of the sealing structure of fig. 1.
Reference numerals illustrate:
1. A cover plate; 101. a liquid injection hole; 102. a step structure; 2. a seal ring; 3. sealing cover; 4. and (5) flanging the boss.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiments of the present invention are described below with reference to fig. 1 to 4.
According to an embodiment of the present invention, in one aspect, there is provided a sealing structure including: cover plate 1, sealing washer 2, sealed lid 3 and turn-ups boss 4. A liquid injection hole 101 is provided penetrating in the thickness direction of the cover plate 1, and a hole wall located at the lower side of the orifice of the liquid injection hole 101 protrudes toward the center direction of the liquid injection hole 101 to form a step structure 102. The sealing ring 2 is arranged corresponding to the orifice of the liquid injection hole 101 and on the step structure 102, and the sealing cover 3 is covered on the orifice of the liquid injection hole 101 and on the sealing ring 2. The flanging boss 4 is arranged on the upper surface of the cover plate 1 in a protruding manner and surrounds the orifice of the liquid injection hole 101, and one side, away from the cover plate 1, of the flanging boss 4 is turned inwards and riveted on the sealing cover 3 so that the sealing cover 3 presses the sealing ring 2.
The sealing ring 2 is utilized to seal between the sealing cover 3 and the liquid injection hole 101, and a flanging riveting process is adopted to replace a laser welding process in the prior art, so that the limiting fixation of the sealing cover 3 and the compression of the sealing ring 2 are realized, the sealing process is simplified, the sealing process is simple and reliable, and the failure risk is reduced.
It is worth to say that, in the related art, the structure of the traditional sealant nail is complex, the cost is high, and the sealing effect is poor, and the sealing effect is achieved mainly through the welding of the aluminum cover and the aluminum plate, however, the welding procedure is complex, and the welding effect is difficult to guarantee. Therefore, in the embodiment, the sealant nail is omitted, the standard sealing ring 2 commonly used in the market is adopted, the structure is simple, the cost is low, the flanging riveting process is adopted to replace the welding process, the processing process is simplified, the production cost is reduced, and the production efficiency is improved.
The sealing ring 2 is made of electrolyte-resistant material such as fluororubber, so that corrosion of the sealing ring 2 by the electrolyte is reduced.
The seal cover 3 is made of a pressure-resistant, electrolyte-resistant, hard material, and is preferably made of a metal material such as copper, aluminum, or stainless steel, or a plastic material such as PI or PPS.
In one embodiment, as shown in FIG. 3, the turnup length h of the turnup boss 4 is greater than or equal to 1.5mm. Thereby guaranteeing the fixing strength of the flanging boss 4 after riveting the sealing cover 3 and guaranteeing the compression effect of the sealing ring 2.
It is worth to say that, if the folding length h is too short, the fixing strength of the flanging boss 4 to the sealing cover 3 and the sealing ring 2 after flanging riveting is insufficient, the sealing ring 2 cannot be effectively compressed, the sealing cover 3 cannot be effectively fixed, and the sealing effect and the installation stability of the sealing cover 3 are affected.
In one embodiment, as shown in FIG. 3, the thickness of the flanging boss 4 is g, satisfying 0.3 mm.ltoreq.g.ltoreq.5 mm. The flanging boss 4 is convenient to fold, and the fixation strength of the flanging boss 4 after riveting the sealing cover 3 is guaranteed.
It is worth to say that, if the thickness g of the flanging boss 4 is too large, that is, the flanging boss 4 is too thick, the operation of the flanging riveting process is inconvenient, and the production efficiency is affected; if the thickness g of the flanging boss 4 is too small, that is, the flanging boss 4 is too thin, the structural strength of the flanging boss 4 is too low, and effective fixation of the sealing cover 3 and effective compression of the sealing ring 2 cannot be ensured.
It should be noted that the cover plate 1 and the flanging boss 4 may be integrally formed.
In one embodiment, as shown in FIG. 3, the diameter of the sealing ring 2 is phia, and phia is more than or equal to 2mm. Thereby, it is ensured that the sealing ring 2 can achieve an effective seal. That is, the sealing ring 2 is too small, the sealing effect is poor, and the sealing effect is affected.
Of course, it will be appreciated that the sealing ring 2 need not be oversized, and only an effective seal is achieved. If the sealing ring 2 is too large, not only is the material wasted and the cost increased, but also the whole weight of the battery is increased, which is not beneficial to the realization of the lightweight of the battery.
In one embodiment, as shown in FIG. 3, the compression amount of the seal ring 2 is d, satisfying 20% d/Φa 50% at the pressing of the seal cover 3. The transitional compression failure of the sealing ring 2 is avoided while the sealing ring 2 is ensured to have enough sealing effect.
It should be noted that d/Φa is the compression ratio of the seal ring 2. If the compression ratio of the seal ring 2 is too small, the sealing effect is poor; if the compression ratio of the seal ring 2 is too large, plastic deformation of the seal ring 2 is likely to occur, and the seal ring 2 fails.
In one embodiment, as shown in fig. 3, the distance between the inner ring of the sealing ring 2 and the edge of the step structure 102 is k, satisfying k > d+1mm. The sealing ring 2 is completely positioned on the step structure 102, so that the sealing ring 2 is prevented from extending into the liquid injection hole 101 after compression deformation, and the sealing effect is prevented from being influenced.
It should be noted that, if the step structure 102 cannot completely support the compressed sealing ring 2, the mounting stability of the sealing ring 2 is easily poor, effective sealing cannot be ensured, and the sealing ring 2 is easily contacted with the electrolyte, which is easy to cause the failure of the sealing ring 2.
In one embodiment, as shown in FIG. 3, the diameter of the sealing cover 3 is phi e, the diameter of the orifice of the liquid injection hole 101 is phi f, and 0 < phi f-phi e is less than or equal to 0.5mm. The sealing effect of the sealing ring 2 is ensured while the sealing cover 3 can be smoothly arranged in the liquid injection hole 101.
It is worth to say that the sealing cover 3 is in clearance fit with the liquid injection hole 101, so that the sealing cover 3 is convenient to install; however, if the gap between the seal cap 3 and the pouring hole 101 is too large, the seal ring 2 is compressed and deformed to be squeezed out into the gap, and the seal ring 2 cannot seal the gap effectively.
In one embodiment, as shown in FIG. 3, the diameter of the liquid injection hole 101 at the edge of the step structure 102 is Φc, satisfying 1 mm. Ltoreq.Φc.ltoreq.10 mm. The arrangement of the rest parts on the cover plate 1 is prevented from being influenced while the electrolyte injection speed is ensured.
It should be noted that if the aperture of the liquid injection hole 101 is too small, the inflow of the electrolyte is not facilitated, so that the liquid injection speed is reduced, and the production efficiency is affected; if the aperture of the liquid injection hole 101 is too large, the space occupied by the liquid injection hole 101 on the cover plate 1 is too large, and the residual space of the cover plate 1 is reduced, so that the layout of other components is not facilitated.
In one embodiment, as shown in FIG. 3, the thickness of the sealing cover 3 is b, satisfying 0.3 mm.ltoreq.b.ltoreq.2 mm. While ensuring sufficient structural strength of the sealing cover 3, waste of material is avoided.
It should be noted that if the thickness b of the sealing cover 3 is too small, that is, the sealing cover 3 is too thin, the structural strength of the sealing cover 3 is insufficient, deformation and even cracking are easy to occur, and the reliability is low; if the thickness b of the sealing cover 3 is too large, that is, the sealing cover 3 is too thick, the material required for manufacturing the sealing cover 3 is increased, so that the material is wasted, the production cost is increased, the occupied space is increased, and the space is wasted.
According to an embodiment of the present invention, in another aspect, there is also provided a battery including the above-described sealing structure.
Although embodiments of the present invention have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope of the invention as defined by the appended claims.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410259358.XA CN117855774B (en) | 2024-03-07 | 2024-03-07 | Sealing structure and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410259358.XA CN117855774B (en) | 2024-03-07 | 2024-03-07 | Sealing structure and battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117855774A CN117855774A (en) | 2024-04-09 |
| CN117855774B true CN117855774B (en) | 2024-05-24 |
Family
ID=90543755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410259358.XA Active CN117855774B (en) | 2024-03-07 | 2024-03-07 | Sealing structure and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117855774B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0930662A2 (en) * | 1998-01-15 | 1999-07-21 | Texas Instruments Incorporated | Current interrupt apparatus for electrochemical cells |
| JP2002324541A (en) * | 2001-04-25 | 2002-11-08 | Matsushita Electric Ind Co Ltd | Sealed battery |
| JP2003132876A (en) * | 2001-10-24 | 2003-05-09 | Matsushita Electric Ind Co Ltd | Sealed battery and liquid pouring hole sealing method the battery |
| JP2003223876A (en) * | 2002-01-30 | 2003-08-08 | Sanyo Electric Co Ltd | Battery pack |
| CN1479389A (en) * | 1997-11-07 | 2004-03-03 | 三洋电机株式会社 | Manufacturing method of closed cell and closed cell |
| KR20050033432A (en) * | 2003-10-03 | 2005-04-12 | 히다치 막셀 가부시키가이샤 | Sealed battery |
| JP2007018915A (en) * | 2005-07-08 | 2007-01-25 | Nec Tokin Corp | Sealed battery |
| CN101064364A (en) * | 2006-04-29 | 2007-10-31 | 深圳市比克电池有限公司 | Lithium ionic cell cover, battery shell and battery |
| JP2013089322A (en) * | 2011-10-13 | 2013-05-13 | Toyota Motor Corp | Sealed battery and method of manufacturing the same |
| JP2014049253A (en) * | 2012-08-30 | 2014-03-17 | Hitachi Vehicle Energy Ltd | Square secondary battery and method of manufacturing the same |
| CN115411470A (en) * | 2022-09-29 | 2022-11-29 | 宾科精密部件(中国)有限公司 | Battery liquid injection port sealing structure, sealing assembly and battery cell |
| CN218101650U (en) * | 2022-09-02 | 2022-12-20 | 厦门海辰储能科技股份有限公司 | Cover plate assembly and battery |
| CN218351694U (en) * | 2022-07-18 | 2023-01-20 | 天津市捷威动力工业有限公司 | Annotate liquid hole seal structure, battery module and electric actuator |
| CN218456108U (en) * | 2022-09-21 | 2023-02-07 | 湖北亿纬动力有限公司 | Battery cover plate assembly and battery |
| CN220066070U (en) * | 2023-05-22 | 2023-11-21 | 蜂巢能源科技股份有限公司 | Cover assembly and battery with same |
-
2024
- 2024-03-07 CN CN202410259358.XA patent/CN117855774B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1479389A (en) * | 1997-11-07 | 2004-03-03 | 三洋电机株式会社 | Manufacturing method of closed cell and closed cell |
| EP0930662A2 (en) * | 1998-01-15 | 1999-07-21 | Texas Instruments Incorporated | Current interrupt apparatus for electrochemical cells |
| JP2002324541A (en) * | 2001-04-25 | 2002-11-08 | Matsushita Electric Ind Co Ltd | Sealed battery |
| JP2003132876A (en) * | 2001-10-24 | 2003-05-09 | Matsushita Electric Ind Co Ltd | Sealed battery and liquid pouring hole sealing method the battery |
| JP2003223876A (en) * | 2002-01-30 | 2003-08-08 | Sanyo Electric Co Ltd | Battery pack |
| KR20050033432A (en) * | 2003-10-03 | 2005-04-12 | 히다치 막셀 가부시키가이샤 | Sealed battery |
| JP2007018915A (en) * | 2005-07-08 | 2007-01-25 | Nec Tokin Corp | Sealed battery |
| CN101064364A (en) * | 2006-04-29 | 2007-10-31 | 深圳市比克电池有限公司 | Lithium ionic cell cover, battery shell and battery |
| JP2013089322A (en) * | 2011-10-13 | 2013-05-13 | Toyota Motor Corp | Sealed battery and method of manufacturing the same |
| JP2014049253A (en) * | 2012-08-30 | 2014-03-17 | Hitachi Vehicle Energy Ltd | Square secondary battery and method of manufacturing the same |
| CN218351694U (en) * | 2022-07-18 | 2023-01-20 | 天津市捷威动力工业有限公司 | Annotate liquid hole seal structure, battery module and electric actuator |
| CN218101650U (en) * | 2022-09-02 | 2022-12-20 | 厦门海辰储能科技股份有限公司 | Cover plate assembly and battery |
| CN218456108U (en) * | 2022-09-21 | 2023-02-07 | 湖北亿纬动力有限公司 | Battery cover plate assembly and battery |
| CN115411470A (en) * | 2022-09-29 | 2022-11-29 | 宾科精密部件(中国)有限公司 | Battery liquid injection port sealing structure, sealing assembly and battery cell |
| CN220066070U (en) * | 2023-05-22 | 2023-11-21 | 蜂巢能源科技股份有限公司 | Cover assembly and battery with same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117855774A (en) | 2024-04-09 |
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