CN208706763U - Sealing nail and battery for battery liquid-filling hole - Google Patents
Sealing nail and battery for battery liquid-filling hole Download PDFInfo
- Publication number
- CN208706763U CN208706763U CN201821305681.2U CN201821305681U CN208706763U CN 208706763 U CN208706763 U CN 208706763U CN 201821305681 U CN201821305681 U CN 201821305681U CN 208706763 U CN208706763 U CN 208706763U
- Authority
- CN
- China
- Prior art keywords
- battery
- sealing
- hole
- filling hole
- waterproof
- 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
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
Abstract
The utility model belongs to battery liquid-filling hole technical field of sealing technology, is related to a kind of sealing nail and battery for battery liquid-filling hole.The sealing nail for being used for battery liquid-filling hole includes sealing nail ontology and waterproof and breathable column, the sealing nail ontology is equipped with along its length through the through-hole of the sealing nail ontology, the waterproof and breathable column is fixed in the through-hole, and the waterproof and breathable column allows gas to pass through and liquid is blocked to pass through.The sealing nail for being used for battery liquid-filling hole can prevent electrolyte because except special circumstances outflow battery case, extra gas can be also discharged into except battery case by waterproof and breathable column in subsequent use process, balancing battery external and internal pressure, prevent battery swell, slow down degradation of cell performance, extends battery.
Description
Technical field
The utility model belongs to battery liquid-filling hole technical field of sealing technology, more particularly to a kind of for the close of battery liquid-filling hole
Feng Ding and battery.
Background technique
After general battery is recycled or is stored at room temperature or elevated temperatures, inside battery can big volume production gas, there is swell phenomenon.For
It prevents battery electrolyte from flowing out from inside battery, while the gas evolution to generate inside battery, exists in the prior art one
Kind is located at the anti-overflow component above battery liquid-filling hole, which includes anti-overflow flow tube, set on anti-overflow flow tube top
Anti-explosion acid-filtering plate, the ventilation tegillum above anti-explosion acid-filtering plate, the gasket positioned at anti-overflow flow tube lower part, ventilation tegillum middle part
Equipped with gas vent, anti-overflow tube cavity constitutes fluid chamber, and anti-overflow flow tube lower part sets interconnecting piece, the liquid injection port phase of interconnecting piece and upper cover
Even.
But anti-overflow component accessory complexity and bulky, it is placed outside the outside of battery body, is unfavorable for cell body
The promotion of product utilization rate and the assembling of battery modules.And battery is in use, if occur transport, it is mobile, fall or
Situations such as shock, deformation occurs vulnerable to external force for anti-overflow component, so that anti-explosion acid-filtering plate and upper cover is deviated or is slided, causes battery
Liquid injection hole it is poorly sealed, seriously affect actual use.
Utility model content
The technical problem to be solved by the utility model is to and bulky complicated for existing anti-overflow component accessory
The technical issues of, a kind of sealing nail and battery for battery liquid-filling hole is provided.
In order to solve the above technical problems, on the one hand, the utility model embodiment provides a kind of for battery liquid-filling hole
Sealing nail, including sealing nail ontology and waterproof and breathable column, the sealing nail ontology are equipped with the length along the sealing nail ontology
Direction is spent through the through-hole of the sealing nail ontology, and the waterproof and breathable column is fixed in the through-hole, the waterproof and breathable column
Gas is allowed to pass through and liquid is blocked to pass through.
It is followed closely according to the sealing for battery liquid-filling hole of the utility model embodiment, sealing nail ontology is equipped with along its length
The through-hole of ontology is followed closely in direction through sealing, and waterproof and breathable column is fixed in through-hole, and waterproof and breathable column allows gas to pass through and block
Liquid passes through, and prevents electrolyte because except special circumstances outflow battery case, can also will be extra in subsequent use process
Gas is discharged into except battery case by waterproof and breathable column, and balancing battery external and internal pressure prevents battery swell, is slowed down cell performance
It can deteriorate, extend battery.In addition, waterproof and breathable column does not influence sealing nail to the leakproofness of inside battery electrolyte
Can, and combine closely with sealing nail ontology, not by electrolytic corrosion and a certain range of pressure influence.
Optionally, the sealing nail ontology includes plug division and head, and one end along the length direction of the plug division is solid
Surely there is the head, frontal projected area of the plug division on the head is less than the main surface area on the head；The through-hole
Through the plug division and head, the shape of the plug division and the shape adaptation in battery liquid-filling hole.
Optionally, the plug division is cylindrical, and the outer diameter of the plug division is 4mm~8mm.
Optionally, the through-hole is cylindrical, and the diameter of the through-hole is 1mm~3mm.
Optionally, the waterproof and breathable column is made of waterproof ventilative material.
Optionally, the sealing nail ontology is rubber bodies.
Optionally, the axis line overlap of the central axes of the sealing nail ontology and the waterproof and breathable column.
On the other hand, the utility model embodiment provides a kind of battery comprising battery cover board and above-mentioned is used for
The sealing in battery liquid-filling hole is followed closely, and the battery cover board is equipped with battery liquid-filling hole, and peace is followed closely in the sealing for battery liquid-filling hole
In the battery liquid-filling hole.
Optionally, the battery further includes fluid injection escutcheon, and the fluid injection escutcheon is fixedly connected on the battery cover board simultaneously
The outside of the sealing nail ontology is covered on, the fluid injection escutcheon is equipped with gas vent, and the gas vent is used for will be by the waterproof
Ventilative column escaping gas discharge.
Optionally, gap is equipped between the fluid injection escutcheon and sealing nail ontology.
Detailed description of the invention
Fig. 1 is the schematic diagram for the sealing nail for battery liquid-filling hole that an embodiment of the present invention provides；
Fig. 2 is the top view for the sealing nail for battery liquid-filling hole that an embodiment of the present invention provides；
Fig. 3 is that the sealing for battery liquid-filling hole that an embodiment of the present invention provides is followed closely and the assembly of battery cover board is shown
It is intended to；
Fig. 4 is the enlarged drawing in Fig. 3 at A.
Appended drawing reference in specification is as follows:
1, the sealing nail in battery liquid-filling hole；11, sealing nail ontology；111, through-hole；112, plug division；113, head；12, prevent
Water is breathed freely column；
2, battery cover board；21, battery liquid-filling hole；
3, fluid injection escutcheon.
Specific embodiment
The technical issues of in order to keep the utility model solved, technical solution and beneficial effect are more clearly understood, below
In conjunction with accompanying drawings and embodiments, the utility model is described in further detail.It should be appreciated that specific reality described herein
It applies example to be only used to explain the utility model, is not used to limit the utility model.
As depicted in figs. 1 and 2,1, including sealing are followed closely in the sealing provided by the embodiment of the utility model for battery liquid-filling hole
Ontology 11 and waterproof and breathable column 12 are followed closely, the sealing nail ontology 11 is equipped with to be passed through along the length direction for sealing nail ontology 11
The through-hole 111 of the sealing nail ontology 11 is worn, the waterproof and breathable column 12 is fixed in the through-hole 111, the waterproof and breathable
Column 12 allows gas to pass through and liquid is blocked to pass through.
Sealing provided by the embodiment of the utility model for battery liquid-filling hole follows closely 1, and the sealing nail ontology 11 is equipped with
Along its length through the through-hole 111 of the sealing nail ontology 11, the waterproof and breathable column 12 is fixed on the through-hole 111
Interior, the waterproof and breathable column 12 allows gas to pass through and liquid is blocked to pass through, and prevents electrolyte because special circumstances flow out battery
Except shell, extra gas can be also discharged into except battery case by waterproof and breathable column 12 in subsequent use process,
Balancing battery external and internal pressure prevents battery swell, slows down degradation of cell performance, extends battery.In addition, the waterproof
Ventilative column 12 does not influence sealing nail to the sealing performance of inside battery electrolyte, and combines closely with sealing nail ontology 11, not by
Electrolytic corrosion and a certain range of pressure influence.
In one embodiment, when the waterproof and breathable column 12 is fixed in the through-hole 111, one first can be applied in its outer surface
Layer glue, then be fixed in the through-hole 111, so that the waterproof and breathable column 12 is preferably bonded in sealing nail ontology 11
On.
As shown in Figure 1, in one embodiment, the sealing nail ontology 11 includes plug division 112 and head 113, along described
One end of the length direction of plug division 112 is fixed with the head 113, orthographic projection of the plug division 112 on the head 113
Area is less than the main surface area on the head 113；The through-hole 111 runs through the plug division 112 and head 113, the grafting
The shape in portion 112 and the shape adaptation of battery liquid-filling hole 21 (as shown in Figure 4).
The main surface area on the head 113 is the surface area perpendicular to the surface of the central axes of the plug division 112.
The shape of the plug division 112 and the shape adaptation in battery liquid-filling hole 21 are more steady by sealing nail ontology 11
Admittedly be fixed in the battery liquid-filling hole 21.The edge on the head 113 protrudes from the periphery of the plug division 112, to keep away
Exempt from when the sealing nail 1 for being used for battery liquid-filling hole to be mounted in the battery liquid-filling hole 21, it is described to be used for battery liquid-filling
The sealing nail 1 in hole is completely forced into the battery liquid-filling hole 21 or indentation inside battery.
In one embodiment, the plug division 112 is cylindrical, and the outer diameter of the plug division 112 is 4mm~8mm.This
When, the through-hole 111 is circular hole.
The through-hole 111 is cylindrical, and the diameter of the through-hole 111 is 1mm~3mm.Accordingly, the waterproof and breathable column
12 is also cylindrical, to be fixed in the through-hole 111.The diameter of through-hole is greater than 3mm, and poor sealing effect can reduce sealing nail
Intensity and resistance to pressure；The diameter of through-hole is less than 1mm, and capacity is few, is unfavorable for adjusting pressure.
In one embodiment, the waterproof and breathable column 12 is made of waterproof ventilative material.
The waterproof and breathable column 12 is made of waterproof ventilative material, can be after battery injects electrolyte immediately by described
Sealing nail 1 for battery liquid-filling hole is sealed, and then phases out into the chemical conversion stage.Because the waterproof and breathable column 12 is deposited
Battery belongs to silent chemical conversion, avoids electrolyte ontology caused by open formation and scatters and disappears, while having prevented the dust in air
Impurity enters the possibility of inside battery by battery liquid-filling hole 21.
The waterproof ventilative material can be polytetrafluoroethylene (PTFE) (PTFE) material or polyester (PU) material.
In one embodiment, sealing nail ontology 11 is rubber bodies, so as to by the sealing for being used for battery liquid-filling hole
The press fitting of nail 1.
As depicted in figs. 1 and 2, in implementing one, the central axes of the sealing nail ontology 11 and the waterproof and breathable column 12
Axis line overlap, that is, the axis line overlap of the central axes of the through-hole 111 and the sealing nail ontology 11, the waterproof is saturating
Air column 12 is arranged in the center of the sealing nail ontology 11 and follows closely ontology 11 through the sealing.
As shown in figure 3, battery provided by the embodiment of the utility model, including battery cover board 2 and the battery that is used for are infused
The sealing nail 1 of fluid apertures, the battery cover board 2 are equipped with battery liquid-filling hole 21,1 installation of sealing nail for battery liquid-filling hole
In the battery liquid-filling hole 21, to prevent the electrolyte of inside battery from flowing out, while the gas ease that inside battery can be made to generate
Out.
As shown in Figure 3 and Figure 4, in one embodiment, the battery further includes fluid injection escutcheon 3, and the fluid injection escutcheon 3 is fixed
It is connected on the battery cover board 2 and covers on the outside of the sealing nail ontology 11, the fluid injection escutcheon 3 is equipped with gas vent,
The gas vent by 12 escaping gas of waterproof and breathable column for that will be discharged.
The fluid injection escutcheon 3 is located at the outside in the battery liquid-filling hole 21, covers on the outside of the sealing nail ontology 11
Meanwhile the fluid injection escutcheon 3 will also play the role of preventing the sealing nail 1 for being used for battery liquid-filling hole from falling off.
As shown in figure 3, in one embodiment, being equipped with gap between the fluid injection escutcheon 3 and sealing nail ontology 11, arranging at this time
Stomata is located at the side of fluid injection escutcheon 3, if it is very close to each other between fluid apertures cover 3 and sealing nail ontology 11, it is unfavorable for gas discharge；
When gas vent is located at interarea (i.e. gas vent and sealing nail is face-to-face) of fluid injection escutcheon 3, fluid injection escutcheon 3 and sealing nail ontology 11
Between do not have gap.
12 escaping gas of the waterproof and breathable column discharge will be through the row of exhausting-gas hole on the gap and the fluid injection escutcheon 3
Out to extraneous.
Embodiment one
The present embodiment one provides a kind of battery comprising battery cover board and the sealing for battery liquid-filling hole are followed closely, and are used for
The sealing nail in battery liquid-filling hole is fitted in the battery liquid-filling hole of battery cover board, and the sealing nail for battery liquid-filling hole includes sealing
Ontology and waterproof and breathable column are followed closely, sealing nail ontology is equipped with along its length through the through-hole of sealing nail ontology, and through-hole is in
The diameter of cylinder, through-hole is 1mm, and waterproof and breathable column is fixed in through-hole, and waterproof and breathable column is cylindrical, waterproof and breathable column
Diameter is 1mm.
Sealing nail ontology includes plug division and head, and head is fixed on one end of plug division, the shape and battery of plug division
The edge of the shape adaptation of liquid injection hole, head protrudes from the periphery of plug division.
Waterproof and breathable column is made of waterproof ventilative material, and sealing nail ontology is rubber bodies.
The central axes of sealing nail ontology and the axis line overlap of waterproof and breathable column.
The original depth of battery is 39.85mm.
Embodiment two
What is different from the first embodiment is that the diameter of through-hole is 1.5mm, the diameter of waterproof and breathable column is 1.5mm.At the beginning of battery
Begin with a thickness of 39.86mm.
Comparative example one
What is different from the first embodiment is that sealing nails on not set through-hole, and seals and unlocked in nail waterproof and breathable is installed
Column.The original depth of battery is 39.87mm.
Comparative example two
Unlike comparative example one, the original depth of battery is 39.91mm.
Conventional side is respectively adopted by battery prepared by above-described embodiment one, embodiment two, comparative example one and comparative example two
Method carries out normal temperature circulation 500 times and high temperature circulation 500 times tests, and test result is as shown in table 1.
Table 1
As shown in table 1, the battery that comparative example one and comparative example two provide, after loop test, with the generation of side reaction,
Inside battery generates bulk gas, and cell thickness is caused to obviously increase.And the battery of embodiment one and embodiment two, due to being used for
The sealing nail ontology of the sealing nail in battery liquid-filling hole is equipped with through-hole, and waterproof and breathable column is fixed in through-hole, so that being used for battery
The sealing nail of liquid injection hole can effectively block the outflow of inside battery electrolyte while allowing inside battery gas to escape, with
Keep cell thickness variation smaller.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (10)
1. a kind of sealing for battery liquid-filling hole is followed closely, which is characterized in that described including sealing nail ontology and waterproof and breathable column
Sealing nail ontology is equipped with through-hole of the length direction through the sealing nail ontology that ontology is followed closely along the sealing, and the waterproof is saturating
Air column is fixed in the through-hole, and the waterproof and breathable column allows gas to pass through and liquid is blocked to pass through.
2. the sealing according to claim 1 for battery liquid-filling hole is followed closely, which is characterized in that the sealing follows closely ontology and includes
Plug division and head are fixed with the head along one end of the length direction of the plug division, and the plug division is on the head
Frontal projected area be less than the head main surface area；The through-hole runs through the plug division and head, the plug division
The shape adaptation of shape and battery liquid-filling hole.
3. the sealing according to claim 2 for battery liquid-filling hole is followed closely, which is characterized in that the plug division is in cylinder
Shape, the outer diameter of the plug division are 4mm~8mm.
4. the sealing according to claim 3 for battery liquid-filling hole is followed closely, which is characterized in that the through-hole is cylindrical,
The diameter of the through-hole is 1mm~3mm.
5. the sealing according to claim 1 for battery liquid-filling hole is followed closely, which is characterized in that the waterproof and breathable column is by preventing
Water gas permeable material is made.
6. the sealing according to claim 1 for battery liquid-filling hole is followed closely, which is characterized in that the sealing nail ontology is rubber
Colloid.
7. the sealing according to claim 1-6 for battery liquid-filling hole is followed closely, which is characterized in that the sealing nail
The axis line overlap of the central axes of ontology and the waterproof and breathable column.
8. a kind of battery, which is characterized in that described in any item for battery liquid-filling including battery cover board and claim 1-7
The sealing in hole is followed closely, and the battery cover board is equipped with battery liquid-filling hole, and the sealing nail for battery liquid-filling hole is mounted on described
In battery liquid-filling hole.
9. battery according to claim 8, which is characterized in that the battery further includes fluid injection escutcheon, the fluid injection escutcheon
It is fixedly connected on the battery cover board and covers on the outside of the sealing nail ontology, the fluid injection escutcheon is equipped with gas vent,
The gas vent by the waterproof and breathable column escaping gas for that will be discharged.
10. battery according to claim 9, which is characterized in that between being equipped between the fluid injection escutcheon and sealing nail ontology
Gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821305681.2U CN208706763U (en) | 2018-08-13 | 2018-08-13 | Sealing nail and battery for battery liquid-filling hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821305681.2U CN208706763U (en) | 2018-08-13 | 2018-08-13 | Sealing nail and battery for battery liquid-filling hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208706763U true CN208706763U (en) | 2019-04-05 |
Family
ID=65942155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821305681.2U Active CN208706763U (en) | 2018-08-13 | 2018-08-13 | Sealing nail and battery for battery liquid-filling hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208706763U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114039175A (en) * | 2021-10-18 | 2022-02-11 | 宁德新能源科技有限公司 | Electricity core and power consumption device |
| CN114762181A (en) * | 2019-12-09 | 2022-07-15 | 松下控股株式会社 | Nonaqueous electrolyte secondary battery and method for manufacturing nonaqueous electrolyte secondary battery |
| CN114798454A (en) * | 2022-05-23 | 2022-07-29 | 合肥工业大学智能制造技术研究院 | Sealed nail detection screening machine towards lithium electricity is made |
-
2018
- 2018-08-13 CN CN201821305681.2U patent/CN208706763U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114762181A (en) * | 2019-12-09 | 2022-07-15 | 松下控股株式会社 | Nonaqueous electrolyte secondary battery and method for manufacturing nonaqueous electrolyte secondary battery |
| CN114762181B (en) * | 2019-12-09 | 2024-02-27 | 松下控股株式会社 | Nonaqueous electrolyte secondary battery and method for manufacturing nonaqueous electrolyte secondary battery |
| CN114039175A (en) * | 2021-10-18 | 2022-02-11 | 宁德新能源科技有限公司 | Electricity core and power consumption device |
| WO2023066024A1 (en) * | 2021-10-18 | 2023-04-27 | 宁德新能源科技有限公司 | Cell and electrical apparatus |
| CN114798454A (en) * | 2022-05-23 | 2022-07-29 | 合肥工业大学智能制造技术研究院 | Sealed nail detection screening machine towards lithium electricity is made |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208706763U (en) | Sealing nail and battery for battery liquid-filling hole | |
| EP4109018A1 (en) | Oxygen removal module, fresh-keeping device and refrigerator | |
| CN207009526U (en) | A kind of lithium ion battery that can discharge internal gas | |
| CN209199993U (en) | Cover plate of power battery structure with gas storage function | |
| CN206754509U (en) | A kind of explosion-proof vent valve of screw-type | |
| CN101132084A (en) | Zinc-air battery | |
| CN114278772A (en) | Electrochemical energy storage device safety valve | |
| CN201629363U (en) | Power battery explosion-proof valve and power battery thereof | |
| CN217130951U (en) | Sealing structure of pressure container | |
| CN111244582B (en) | Zinc-air battery positive electrode structure, assembly method and zinc-air battery | |
| CN106058120B (en) | Battery current collector and alkaline battery | |
| CN211719626U (en) | Battery cover plate and lithium ion battery | |
| CN214278064U (en) | Waterproof dustproof gas sensor | |
| CN209329011U (en) | A kind of battery pressure relief valve body | |
| CN208022147U (en) | A kind of daily chemical product holding vessel | |
| CN205882039U (en) | Battery collector body and alkaline battery | |
| CN214898752U (en) | Ventilation explosion-proof valve for pressure relief of battery PACK box closed space | |
| CN206976413U (en) | A kind of battery seal ring | |
| CN2556794Y (en) | Hydrogen-removing safety valve for valve control type sealed lead acid battery | |
| CN206022491U (en) | Lithium battery pressure relief device and lithium battery | |
| CN219317730U (en) | Water heating exhaust valve | |
| CN218000544U (en) | Device for controlling positive and negative pressure gas liquid to enter and exit | |
| CN214124047U (en) | New energy battery explosion-proof valve with pressure beads | |
| CN204755940U (en) | Marine air pipe head | |
| CN214299519U (en) | Aeration hole shunting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |