CN107946496A - A kind of new type lithium ion battery lid - Google Patents
A kind of new type lithium ion battery lid Download PDFInfo
- Publication number
- CN107946496A CN107946496A CN201711333647.6A CN201711333647A CN107946496A CN 107946496 A CN107946496 A CN 107946496A CN 201711333647 A CN201711333647 A CN 201711333647A CN 107946496 A CN107946496 A CN 107946496A
- Authority
- CN
- China
- Prior art keywords
- lithium ion
- ion battery
- head cover
- new type
- type lithium
- 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.)
- Withdrawn
Links
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 43
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 238000007373 indentation Methods 0.000 claims description 29
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 239000000126 substance Substances 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 12
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
- H01M50/152—Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
-
- 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)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses the sealing ring (3) of a kind of new type lithium ion battery lid, including circular ring shape, the inner side of the sealing ring (3) has indent, annular spread head cover embedded groove；The head cover embedded groove has been embedded in a head cover (1)；The left side of the head cover (1) is provided with an exhaust outlet (5).A kind of new type lithium ion battery lid disclosed by the invention, its can in real time, be effectively discharged out lithium ion battery gas for producing after sealing is melted into, avoid the air pressure of inside battery excessive, ensure the security performance of lithium ion battery, be conducive to improve the market application foreground of cell production companies product, be of great practical significance.
Description
Technical field
The present invention relates to battery technology field, more particularly to a kind of new type lithium ion battery lid.
Background technology
At present, lithium ion battery have the advantages that it is higher than energy, recycle often, storage time it is long, not only just
Take such as mobile phone, DV and laptop computer on formula electronic equipment to be used widely, and be widely used in electricity
In terms of the large and medium-sized electrical equipment such as electrical automobile, electric bicycle and electric tool, therefore to the performance requirement of lithium ion battery
It is higher and higher.
For the lithium ion battery having, such as 21700 type column lithium ion batteries, need to be sealed in preparation process
Mouth formation process, sealing chemical conversion are to carry out the process of first discharge and recharge afterwards in sealing (sealing head cover) to the battery of new production.
In formation process is sealed, since inside battery can chemically react, inside battery has carbon dioxide, oxygen etc.
Multiple gases produce, so that air pressure from inside to outside is formed, if the air pressure of inside battery is excessive so that battery, which expands, asks
Topic, seriously affects the working performance of battery, or even can cause the security risk of battery explosion, the serious general safety for reducing battery
Performance.
It should be noted that 21700 type lithium ion batteries are one kind of cylinder type lithium battery.Wherein " 21 " refer to cell diameter
For 21mm, it is 70mm that " 70 ", which refer to height, and " 0 " represents the battery of cylinder type.
Therefore, at present there is an urgent need to develop a kind of technology is gone out, it can timely and effectively discharge lithium ion battery and seal
The gas produced after chemical conversion, avoids the air pressure of inside battery excessive, ensures the security performance of lithium ion battery.
The content of the invention
In view of this, the object of the present invention is to provide a kind of new type lithium ion battery lid, it can timely and effectively be discharged
The gas that lithium ion battery produces after sealing is melted into, avoids the air pressure of inside battery excessive, ensures the safety of lithium ion battery
Performance, is conducive to improve the market application foreground of cell production companies product, is of great practical significance.
For this reason, the present invention provides a kind of new type lithium ion battery lid, include the sealing ring of circular ring shape, the sealing ring
Inner side has indent, annular spread head cover embedded groove；
The head cover embedded groove has been embedded in a head cover；
The left side of the head cover is provided with an exhaust outlet.
Wherein, after the chemical conversion operation of complete battery pair, a sealing bolt is also sealedly connected with the exhaust outlet.
Wherein, the exhaust outlet is laser welded with the sealing bolt.
Wherein, recessed explosion-proof indentation is distributed with the right of the head cover.
Wherein, the plan view shape of the explosion-proof indentation is semi-circular shape.
Wherein, the explosion-proof indentation is triangle along the cross sectional shape of the head cover radial direction
Wherein, the bore on the explosion-proof indentation top is more than the bore of the explosion-proof indentation lower part.
The technical solution provided by the invention more than is as it can be seen that compared with prior art, the present invention provides a kind of new
Lithium-ion battery, its can in real time, be effectively discharged out lithium ion battery gas for producing after sealing is melted into, avoid in battery
The air pressure in portion is excessive, ensures the security performance of lithium ion battery, before the market application for being conducive to raising cell production companies product
Scape, is of great practical significance.
In addition, for the present invention, it can allow column lithium ion battery to realize open formation by setting exhaust outlet,
The gas produced in time in discharge formation process, and exist after chemical conversion exhaust is finished, then by sealing bolt with exhaust outlet sealing welding
Together, realize that battery seal operates.
In addition, for the present invention, it on head cover by setting explosion-proof indentation, so that after battery completes sealing operation,
If the air pressure of inside battery occurs more than the situation by power restriction of the explosion-proof indentation, can split explosion-proof indentation in time, real
Now to the quick pressure releasing of inside battery.Therefore, the security performance of lithium ion battery is further improved.
Brief description of the drawings
Fig. 1 is a kind of sectional view of new type lithium ion battery lid provided by the invention；
Fig. 2 covers the top view when removing sealing bolt for a kind of new type lithium ion battery provided by the invention；
In figure：1 is head cover, and 2 be sealing bolt, and 3 be sealing ring, and 4 be explosion-proof indentation, and 5 be exhaust outlet.
Embodiment
In order to make those skilled in the art more fully understand the present invention program, below in conjunction with the accompanying drawings with embodiment to this
Invention is described in further detail.
It is described the present invention provides the sealing ring 3 of a kind of new type lithium ion battery lid, including circular ring shape referring to Fig. 1, Fig. 2
The inner side of sealing ring 3 has indent, annular spread head cover embedded groove；
The head cover embedded groove has been embedded in a head cover 1；
The left side of the head cover 1 is provided with an exhaust outlet 5, and the exhaust outlet 5 is connected with the inner space of lithium ion battery
It is logical.
In the present invention, in specific implementation, after the chemical conversion operation of complete battery pair, it is tightly connected in the exhaust outlet 5
There is a sealing bolt 2.It should be noted that complete battery pair chemical conversion operation after, battery in gas caused by chemical conversion
Through being fully drained by exhaust outlet 5.
In specific implementation, the exhaust outlet 5 is laser welded with the sealing bolt 2.
In the present invention, in specific implementation, the material of the head cover 1 and sealing bolt 2 is steel material.
In the present invention, in specific implementation, the plan view shape of the head cover 1 is circle.
In the present invention, in specific implementation, recessed explosion-proof indentation 4 is distributed with the right of the head cover 1.
In specific implementation, the plan view shape of the explosion-proof indentation 4 can be semi-circular shape, certainly, according to battery producer with
And the needs of user, it can also be other shapes or pattern.
It should be noted that after being operated in the chemical conversion of complete battery pair, due to being sealed by sealing bolt 2 to battery
Mouthful, then, if inside battery causes inside battery there occurs a problem that short circuit in battery in actual use
Air pressure rise suddenly and it is excessive when, explosion-proof indentation 4 will rupture, so as to fulfill the purpose to inside battery pressure release.
It should also be noted that, the explosion-proof indentation 4 can be triangle along the cross sectional shape of 4 radial direction of head cover
Shape, certainly, according to battery producer and the needs of user, can also be other shapes or pattern.The explosion-proof indentation 4 has
There is default maximum weighted value (size for bearing inside battery air pressure), under the default maximum weighted value and explosion-proof indentation 4
Recessed depth is inversely.The explosion-proof indentation 4 recessed depth and size, can be according to the needs and battery of user
Actual conditions accordingly set.
In specific implementation, for recessed explosion-proof indentation 4, the bore on explosion-proof 4 top of indentation is more than the explosion-proof quarter
The bore of 4 lower part of trace.
Compared with prior art, new type lithium ion battery lid provided by the invention has the advantages that：
1st, battery cover provided by the invention can in real time, be effectively discharged out the gas that battery produces after chemical conversion, avoid electricity
Battery performance declines and cell safety risk caused by air pressure inside pond is excessive；
2nd, explosion-proof indentation is provided with battery cover provided by the invention, can be in the actual use after battery is sealed
Cheng Zhong, if inside battery there occurs a problem that short circuit, and causes inside battery air pressure to exceed the maximum at explosion-proof indentation 4
During stress value, explosion-proof indentation 4 will rupture, and realize the purpose to inside battery pressure release；
3rd, structure of battery corer provided by the invention is simplified, thickness ultrathin (the specifically only thickness of a head cover), Ke Yizeng
The inner space of big battery, and then lift the whole volume of battery.
It should be noted that during battery cover using the present invention carries out the assembling manufacturing of battery, preliminary dress is completed
The exhaust outlet for the battery matched somebody with somebody first without closing, the battery of this state be melted into and be melted into advance, waits all chemical conversion stream
After journey, then by the way of laser welding, the exhaust ports that sealing bolt is welded to head cover are sealed.Therefore it is easy to grasp
Make, and cost is relatively low, there can be preferable pressure release effect on the premise of no security risk, improves the service life of battery
And security.
Therefore, in summary technical solution is understood, the present invention can be caused by providing a kind of new type lithium ion battery lid
The gas that battery produces after chemical conversion can have passage (be specially exhaust outlet 5) to be discharged, so as to keep the gas of inside battery
Body pressure balance, avoids the danger such as battery runs down, leakage and quick-fried spray caused by inside battery is there are excessive gas pressure
Dangerous situation condition occurs.
For new type lithium ion battery lid provided by the invention, column lithium ion battery can be advantageously applied to, it is right
The security performance of column lithium ion battery plays an important role.
In conclusion compared with prior art, a kind of new type lithium ion battery lid provided by the invention, it can be real
When, be effectively discharged out lithium ion battery gas for producing after sealing is melted into, avoid the air pressure of inside battery excessive, ensure lithium from
The security performance of sub- battery, is conducive to improve the market application foreground of cell production companies product, has great production practices
Meaning.
In addition, for the present invention, it can allow column lithium ion battery to realize open formation by setting exhaust outlet,
The gas produced in time in discharge formation process, and exist after chemical conversion exhaust is finished, then by sealing bolt with exhaust outlet sealing welding
Together, realize that battery seal operates.
In addition, for the present invention, it on head cover by setting explosion-proof indentation, so that after battery completes sealing operation,
If the air pressure of inside battery occurs more than the situation by power restriction of the explosion-proof indentation, can split explosion-proof indentation in time, real
Now to the quick pressure releasing of inside battery.Therefore, the security performance of lithium ion battery is further improved.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (7)
- A kind of 1. new type lithium ion battery lid, it is characterised in that the sealing ring (3) including circular ring shape, the sealing ring (3) it is interior Side has indent, annular spread head cover embedded groove；The head cover embedded groove has been embedded in a head cover (1)；The left side of the head cover (1) is provided with an exhaust outlet (5).
- 2. new type lithium ion battery lid as claimed in claim 1, it is characterised in that after the chemical conversion operation of complete battery pair, A sealing bolt (2) is also sealedly connected with the exhaust outlet (5).
- 3. new type lithium ion battery lid as claimed in claim 2, it is characterised in that the exhaust outlet (5) and the sealing bolt (2) it is laser welded.
- 4. new type lithium ion battery lid as claimed any one in claims 1 to 3, it is characterised in that the right side of the head cover (1) While recessed explosion-proof indentation (4) is distributed with.
- 5. new type lithium ion battery lid as claimed in claim 4, it is characterised in that the plan view shape of the explosion-proof indentation (4) For semi-circular shape.
- 6. new type lithium ion battery lid as claimed in claim 4, it is characterised in that the explosion-proof indentation (4) is along the head cover (4) cross sectional shape of radial direction is triangle.
- 7. new type lithium ion battery lid as claimed in claim 4, it is characterised in that the bore on explosion-proof indentation (4) top More than the bore of explosion-proof indentation (4) lower part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711333647.6A CN107946496A (en) | 2017-12-14 | 2017-12-14 | A kind of new type lithium ion battery lid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711333647.6A CN107946496A (en) | 2017-12-14 | 2017-12-14 | A kind of new type lithium ion battery lid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107946496A true CN107946496A (en) | 2018-04-20 |
Family
ID=61943025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711333647.6A Withdrawn CN107946496A (en) | 2017-12-14 | 2017-12-14 | A kind of new type lithium ion battery lid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107946496A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022117098A1 (en) * | 2020-12-04 | 2022-06-09 | 珠海冠宇电池股份有限公司 | Button cell and electronic device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2569352Y (en) * | 2001-07-04 | 2003-08-27 | 深圳市比亚迪锂电池有限公司 | Cylindrical type lithium ion cell |
| CN2824317Y (en) * | 2005-06-27 | 2006-10-04 | 东莞新能源电子科技有限公司 | Aluminium shell cylinder shaped lithium ion cell |
| CN202839772U (en) * | 2012-08-21 | 2013-03-27 | 江苏恒迅中锂新能源科技有限公司 | Modified structure of upper shell cover of high capacity battery |
| CN203071164U (en) * | 2013-01-09 | 2013-07-17 | 深圳市沃特玛电池有限公司 | Battery structure suitable for opening formation |
| CN104393334A (en) * | 2014-12-10 | 2015-03-04 | 天津力神电池股份有限公司 | Lithium ion battery |
| CN204348795U (en) * | 2014-11-07 | 2015-05-20 | 丁振荣 | Box hat battery core block and box hat battery core |
| CN207558842U (en) * | 2017-12-14 | 2018-06-29 | 力神电池（苏州）有限公司 | A kind of new type lithium ion battery lid |
-
2017
- 2017-12-14 CN CN201711333647.6A patent/CN107946496A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2569352Y (en) * | 2001-07-04 | 2003-08-27 | 深圳市比亚迪锂电池有限公司 | Cylindrical type lithium ion cell |
| CN2824317Y (en) * | 2005-06-27 | 2006-10-04 | 东莞新能源电子科技有限公司 | Aluminium shell cylinder shaped lithium ion cell |
| CN202839772U (en) * | 2012-08-21 | 2013-03-27 | 江苏恒迅中锂新能源科技有限公司 | Modified structure of upper shell cover of high capacity battery |
| CN203071164U (en) * | 2013-01-09 | 2013-07-17 | 深圳市沃特玛电池有限公司 | Battery structure suitable for opening formation |
| CN204348795U (en) * | 2014-11-07 | 2015-05-20 | 丁振荣 | Box hat battery core block and box hat battery core |
| CN104393334A (en) * | 2014-12-10 | 2015-03-04 | 天津力神电池股份有限公司 | Lithium ion battery |
| CN207558842U (en) * | 2017-12-14 | 2018-06-29 | 力神电池（苏州）有限公司 | A kind of new type lithium ion battery lid |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022117098A1 (en) * | 2020-12-04 | 2022-06-09 | 珠海冠宇电池股份有限公司 | Button cell and electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180420 |
|
| WW01 | Invention patent application withdrawn after publication |