CN205376589U - Sealing device and secondary cell - Google Patents
Sealing device and secondary cell Download PDFInfo
- Publication number
- CN205376589U CN205376589U CN201620140844.0U CN201620140844U CN205376589U CN 205376589 U CN205376589 U CN 205376589U CN 201620140844 U CN201620140844 U CN 201620140844U CN 205376589 U CN205376589 U CN 205376589U
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- China
- Prior art keywords
- secondary cell
- sealed
- sealing device
- nail
- hole
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- 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
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model provides a sealing device and secondary cell. Sealing device is used for notes liquid hole sealed on secondary cell's the top cap, includes: sealed nail is clogged in secondary cell's notes liquid downtheholely, the seal piece welds in the top cap sealedly in order will annotate the liquid hole, and hot melting column. Sealed nail is equipped with the through -hole, hot melting column is sealed to be set up in the through -hole of sealed nail, and melts when being heated. Sealed nail can be tentatively sealed with annotating the liquid hole with the hot melting column combination, then it is thoroughly sealed in order will annotate the liquid hole in the top cap with the seal chip bonding, annotating the liquid hole, the welded in -process produce local high temperature near, can melt hot melting column, the inside gas of secondary cell then can pass sealed nail via the through -hole, then, the sealed effect of seal piece can be monitored through monitoring air leakage's degree, reduce sealed welding seam detection effect's to the seal piece the influence in advance of sealed nail, guarantee the leakproofness of seal piece to secondary cell's notes liquid hole.
Description
Technical field
This utility model relates to field of batteries, particularly relates to a kind of sealing device and secondary cell.
Background technology
The Sealing Technology of existing secondary cell is realized by two steps, and first, battery container passes into appropriate helium after vacuum chamber in housing, inserts plastic stud pre-sealed；Then, battery proceeding to erection welding diaphragm seal under conventional air pressure environment, and welded seal sheet and top cover is combined by laser weld mode, welding diaphragm seal weld is carried out air-leakage test, air-tightness is qualified can realize permanent positive sealing.
But, existing plastic stud is single entity structure, and the ageing failure cycle is short, and when being used for battery core is done short-term sealing, sealing effectiveness is reliable.Welded seal sheet does air-leakage test after welding with top cover, and on special equipment, detection passes into the leakage rate of the helium in housing before inserting plastic stud, then judges that lower than standard value welded seal sheet air-tightness is qualified.Because there being pre-sealed plastic stud to exist, and plastic stud short-term sealing effectiveness is reliable, so when plastic stud air-tightness is qualified, helium cannot pass plastic stud and arrive the region before welded seal sheet and plastic stud, external equipment detects naturally less than helium, can judge that welded seal sheet welding airtightness is qualified, but actually and connect the testing goal of diaphragm seal weld seam not up to butt welding.
Utility model content
In view of Problems existing in background technology, the purpose of this utility model is in that to provide a kind of sealing device and secondary cell, it can reduce the impact of the pre-sealed weld seam detection effect on welding diaphragm seal sealing nail, it is ensured that the welded seal sheet sealing to the liquid injection hole of secondary cell.
To achieve these goals, in first aspect, this utility model provides a kind of sealing device, the sealing of its liquid injection hole for the top cover of secondary cell on, including: seal and follow closely, clog in the liquid injection hole of secondary cell；Welded seal sheet, is welded in top cover to be sealed by liquid injection hole；And hot molten column.Wherein, seal nail and be provided with through hole；Hot molten column seals and is arranged in the through hole sealing nail, and fuses when heated.
To achieve these goals, in second aspect, this utility model provides a kind of secondary cell, and it includes the sealing device described in this utility model first aspect.
The beneficial effects of the utility model are as follows:
According in sealing device of the present utility model and secondary cell, seal nail to be combined can tentatively be sealed by liquid injection hole with hot molten column, then welded seal sheet is welded in top cover thoroughly to be sealed by liquid injection hole, the process of welding produces localized hyperthermia near liquid injection hole, hot molten column can be melted, gas within secondary cell then can via through hole through sealing nail, now, the sealing effectiveness of welded seal sheet can be monitored by monitoring the degree of gas leakage, reduce the impact of the pre-sealed weld seam detection effect on welding diaphragm seal sealing nail, ensure the welded seal sheet sealing to the liquid injection hole of secondary cell.
Accompanying drawing explanation
Fig. 1 is the exploded view according to secondary cell of the present utility model；
Fig. 2 is the exploded view according to sealing device of the present utility model, and wherein welded seal sheet omits；
Fig. 3 is the sectional view sealing nail according to sealing device of the present utility model, is wherein provided with hot molten column in through hole；And
Fig. 4 is the sectional view sealing nail according to sealing device of the present utility model.
Wherein, description of reference numerals is as follows:
1 seals nail B secondary cell
11 through hole B1 top covers
2 welded seal sheet B11 liquid injection holes
3 hot molten columns
Detailed description of the invention
Describe sealing device of the present utility model and secondary cell with reference to the accompanying drawings in detail.
First sealing device according to this utility model first aspect is described.
Referring to figs. 1 through Fig. 4, the sealing according to the sealing device of the present utility model liquid injection hole B11 on the top cover B1 of secondary cell B, including: seal nail 1, clog in the liquid injection hole B11 of secondary cell B；Welded seal sheet 2, is welded in top cover B1 to be sealed by liquid injection hole B11；And hot molten column 3.Wherein, seal nail 1 and be provided with through hole 11；Hot molten column 3 seals and is arranged in the through hole 11 sealing nail 1, and fuses when heated.
According in sealing device of the present utility model, seal nail 1 to be combined can tentatively be sealed by liquid injection hole B11 with hot molten column 3, then welded seal sheet 2 is welded in top cover B1 thoroughly to be sealed by liquid injection hole B11, the process of welding produces localized hyperthermia near liquid injection hole B11, hot molten column 3 can be melted, gas within secondary cell B then can via through hole 11 through sealing nail 1, now, the sealing effectiveness of welded seal sheet 2 can be monitored by monitoring the degree of gas leakage, reduce the impact of the pre-sealed weld seam detection effect on welding diaphragm seal 2 sealing nail 1, ensure the welded seal sheet 2 sealing to the liquid injection hole B11 of secondary cell B.
According to, in sealing device of the present utility model, in one embodiment, sealing nail 1 and be made up of plastic cement or rubber.Usual plastic cement or rubber have elasticity such that it is able to improve and seal nail 1 sealing function to liquid injection hole B11.
According in sealing device of the present utility model, in one embodiment, welded seal sheet 2 is sheet metal.
According in sealing device of the present utility model, in one embodiment, sheet metal is fine aluminium sheet or aluminum alloy sheet.Being certainly not limited to this, sheet metal can be any suitable concrete metal material.
According to, in sealing device of the present utility model, in one embodiment, being welded as laser weld.
According in sealing device of the present utility model, in one embodiment, hot molten column 3 is paraffin post.Can also adopt other fusing point 40～80 DEG C and with the electrolyte material without significant reaction.
According in sealing device of the present utility model, in one embodiment, hot molten column 3, by being injected in the through hole 11 sealing nail 1 by melted paraffin, makes paraffin post after cooling.
According in sealing device of the present utility model, in one embodiment, described secondary cell B is duricrust battery.
Secondly secondary cell according to this utility model second aspect is described.
Referring to figs. 1 through Fig. 4, include the sealing device described in this utility model first aspect according to secondary cell of the present utility model.
Can be lithium rechargeable battery, sodium ion secondary battery or zinc ion secondary cell according to secondary cell of the present utility model.
Claims (10)
1. a sealing device, for the sealing of the liquid injection hole (B11) on the top cover (B1) of secondary cell (B), including:
Seal nail (1), clog in the liquid injection hole (B11) in secondary cell (B)；And
Welded seal sheet (2), is welded in top cover (B1) to be sealed by liquid injection hole (B11)；
It is characterized in that,
Seal nail (1) and be provided with through hole (11)；
Described sealing device also includes:
Hot molten column (3), seals and is arranged in the through hole (11) sealing nail (1), and fuses when heated.
2. sealing device according to claim 1, it is characterised in that seal nail (1) and be made up of plastic cement or rubber.
3. sealing device according to claim 1, it is characterised in that welded seal sheet (2) is sheet metal.
4. sealing device according to claim 3, it is characterised in that sheet metal is fine aluminium sheet or aluminum alloy sheet.
5. sealing device according to claim 1, it is characterised in that be welded as laser weld.
6. sealing device according to claim 1, it is characterised in that hot molten column (3) is paraffin post.
7. sealing device according to claim 6, it is characterised in that hot molten column (3), by being injected in the through hole (11) sealing nail (1) by melted paraffin, makes paraffin post after cooling.
8. sealing device according to claim 1, it is characterised in that described secondary cell (B) is duricrust battery.
9. a secondary cell, it is characterised in that include the sealing device described in any one of claim 1-8.
10. secondary cell according to claim 9, it is characterised in that described secondary cell is lithium rechargeable battery, sodium ion secondary battery or zinc ion secondary cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620140844.0U CN205376589U (en) | 2016-02-25 | 2016-02-25 | Sealing device and secondary cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620140844.0U CN205376589U (en) | 2016-02-25 | 2016-02-25 | Sealing device and secondary cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205376589U true CN205376589U (en) | 2016-07-06 |
Family
ID=56271192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620140844.0U Active CN205376589U (en) | 2016-02-25 | 2016-02-25 | Sealing device and secondary cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205376589U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107335914A (en) * | 2017-05-19 | 2017-11-10 | 大族激光科技产业集团股份有限公司 | The welding method of electrokinetic cell and its sealing nail |
| CN110534692A (en) * | 2019-09-30 | 2019-12-03 | 珠海泰坦新动力电子有限公司 | A kind of sequentially chemical conversion glue nail separating mechanism |
| CN112310496A (en) * | 2020-04-09 | 2021-02-02 | 宁德时代新能源科技股份有限公司 | End cover assembly, battery monomer, battery pack and device |
| CN112542664A (en) * | 2019-09-23 | 2021-03-23 | 湖南弘毅科技有限公司 | Square lithium battery and air tightness detection method thereof |
| 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 |
-
2016
- 2016-02-25 CN CN201620140844.0U patent/CN205376589U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107335914A (en) * | 2017-05-19 | 2017-11-10 | 大族激光科技产业集团股份有限公司 | The welding method of electrokinetic cell and its sealing nail |
| CN107335914B (en) * | 2017-05-19 | 2019-05-10 | 大族激光科技产业集团股份有限公司 | The welding method of power battery and its sealing nail |
| CN112542664A (en) * | 2019-09-23 | 2021-03-23 | 湖南弘毅科技有限公司 | Square lithium battery and air tightness detection method thereof |
| CN110534692A (en) * | 2019-09-30 | 2019-12-03 | 珠海泰坦新动力电子有限公司 | A kind of sequentially chemical conversion glue nail separating mechanism |
| CN112310496A (en) * | 2020-04-09 | 2021-02-02 | 宁德时代新能源科技股份有限公司 | End cover assembly, battery monomer, battery pack and device |
| CN114072958A (en) * | 2020-04-09 | 2022-02-18 | 宁德时代新能源科技股份有限公司 | End cover assembly, battery monomer, battery pack and device |
| CN114072958B (en) * | 2020-04-09 | 2023-08-04 | 宁德时代新能源科技股份有限公司 | End cover assembly, battery cell, battery pack and device |
| 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 |
| CN114039175B (en) * | 2021-10-18 | 2024-06-04 | 宁德新能源科技有限公司 | Battery cell and power utilization device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |