CN110444701A - Lithium battery anti-package combined hat - Google Patents
Lithium battery anti-package combined hat Download PDFInfo
- Publication number
- CN110444701A CN110444701A CN201910737442.7A CN201910737442A CN110444701A CN 110444701 A CN110444701 A CN 110444701A CN 201910737442 A CN201910737442 A CN 201910737442A CN 110444701 A CN110444701 A CN 110444701A
- Authority
- CN
- China
- Prior art keywords
- aluminium flake
- explosion
- proof
- lithium battery
- proof aluminium
- 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.)
- Pending
Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 23
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 102
- 230000008602 contraction Effects 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 238000005452 bending Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000000747 cardiac effect Effects 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 238000004880 explosion Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
- H01M50/183—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
- H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
-
- 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)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The present invention relates to a kind of lithium battery anti-package combined hats, including sealing ring, explosion-proof aluminium flake is arranged between sealing ring inner ring, connection aluminium flake is equipped with below explosion-proof aluminium flake, connection aluminium flake central protuberance is bonded with explosion-proof aluminium flake bottom surface, it connects aluminium flake central protuberance two sides and forms pressure-releasing chamber, cage ring is connected between connection aluminium flake outer ledge and explosion-proof aluminium flake inner wall, cage ring periphery has the ring fin that is plugged in explosion-proof aluminium flake, and the explosion-proof aluminium flake inner wall in the pressure-releasing chamber has to contract and the contraction section that keeps inner wall thinning.The present invention is by being arranged to contraction section for the explosion-proof aluminium flake inner wall being located in pressure-releasing chamber, so that the explosion-proof aluminium flake inner wall of the part is thinning, to reduce the cut-out resistance between connection aluminium flake and explosion-proof aluminium flake, when lithium battery drop-in short circuit causes internal pressure to increase, explosion-proof aluminium flake can be quickly set to be deformed and be broken, release lithium battery interior pressure in time prevents the danger that lithium battery fail in compression is even exploded.
Description
Technical field
The present invention relates to technical field of lithium ion, especially a kind of lithium battery anti-package combined hat.
Background technique
In capping structure used in lithium ion battery, it is equipped with explosion-proof aluminium flake and connection aluminium flake, and in explosion-proof aluminium flake and connection
If opening up dry and cracked slot on aluminium flake, cell internal pressure is caused to increase once short circuit occurs for battery, then can rush breaking groove keeps internal pressure fast
Quick-release is put and protects the battery from influence.But for the explosion-proof aluminium flake of existing structure, wall thickness is consistent substantially, thus
Also when cell internal pressure increases, slot effect is split though having, the cut-out resistance connected between aluminium flake and explosion-proof aluminium flake is still gone back
Be it is not small, cause cell internal pressure to be difficult to quick release.
Summary of the invention
The technical problem to be solved by the present invention is in order to overcome the deficiencies in the existing technology, the present invention provide it is a kind of can be more
Quick release puts the lithium battery anti-package combined hat of cell internal pressure.
The technical solution adopted by the present invention to solve the technical problems is: a kind of lithium battery anti-package combined hat, including clamps
Sealing ring between lithium battery steel shell upper end opening is arranged with explosion-proof aluminium flake between sealing ring inner ring, sets below explosion-proof aluminium flake
There is connection aluminium flake, connection aluminium flake central protuberance is bonded with explosion-proof aluminium flake bottom surface, and connection aluminium flake central protuberance two sides form pressure-releasing chamber,
Cage ring is connected between connection aluminium flake outer ledge and explosion-proof aluminium flake inner wall, connection aluminium flake central protuberance part, which has, opens
Mouth upward on split slot, offered on explosion-proof aluminium flake inner wall corresponding with cage ring upper surface it is downward opening under split slot, it is described
Cage ring periphery there is the ring fin that is plugged in explosion-proof aluminium flake outer periphery, in the explosion-proof aluminium flake in the pressure-releasing chamber
Wall has to contract and the contraction section that keeps inner wall thinning.
Specifically, the contraction section is in skewed obliquely upward, contraction section lower end with to connect aluminium flake central protuberance face neat
Flat, planes align on contraction section upper end and cage ring, the contraction section has from the lower end inclined-plane that the heart extends thereto, described oblique
The top in face terminates in plane extension line in cage ring.
Further, the through-hole of connection pressure-releasing chamber is offered on the connection aluminium flake.
The explosion-proof aluminium flake periphery has the inside edge of downward and inside bending, the inside edge and explosion-proof aluminium flake inner wall
Between form the card slot for being inserted into the ring fin.
The beneficial effects of the present invention are: the present invention is by the way that the explosion-proof aluminium flake inner wall being located in pressure-releasing chamber to be arranged to shrink
Shape, so that the explosion-proof aluminium flake inner wall of the part is thinning, to reduce the cut-out resistance between connection aluminium flake and explosion-proof aluminium flake, in lithium electricity
When pond drop-in short circuit causes internal pressure to increase, cooperation splits slot above and below, is quickly deformed explosion-proof aluminium flake, works as electricity
After the internal pressure increase to a certain extent of pond, there is deformation fracture in explosion-proof aluminium flake, so as to discharge lithium battery interior pressure in time, prevents
There is the danger that lithium battery fail in compression even generates explosion.
Detailed description of the invention
The present invention is further described with embodiment with reference to the accompanying drawing.
Fig. 1 is structural schematic diagram of the invention.
In figure: 1. sealing rings, 2. explosion-proof aluminium flakes, 2-1. inside edge, 3. connection aluminium flakes, 4. pressure-releasing chamber, 5. cage ring, 5-1.
Ring fin, 6. contraction sections, the inclined-plane 6-1., 7. through-holes, 8. card slots.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant to the invention.
A kind of lithium battery anti-package combined hat as shown in Figure 1, it is close between lithium battery steel shell upper end opening including being installed on
Seal 1 is arranged with explosion-proof aluminium flake 2 between 1 inner ring of sealing ring, and explosion-proof 2 bottom surface of aluminium flake is placed on the fin of 1 inner bottom surface of sealing ring；
Connection aluminium flake 3 is equipped with below explosion-proof aluminium flake 2, connection 3 central protuberance of aluminium flake is bonded with explosion-proof 2 bottom surface of aluminium flake, is located at connection
Cage ring 5 is connected between 2 inner wall of 3 outer ledge of aluminium flake and explosion-proof aluminium flake, connection 3 central protuberance part of aluminium flake has opening court
On on split slot, offered on explosion-proof 2 inner wall of aluminium flake corresponding with 5 upper surface of cage ring it is downward opening under split slot.Sealing ring 1
Inside bending is covered in explosion-proof 2 surface of aluminium flake after mounting for periphery.
The 3 central protuberance two sides of connection aluminium flake form pressure-releasing chamber 4, and the pressure-releasing chamber 4 is by explosion-proof aluminium flake 2, connection aluminium flake 3
And cage ring 5 surrounds, and the through-hole 7 of connection pressure-releasing chamber 4 is offered on the connection aluminium flake 3.
5 periphery of cage ring has the ring fin 5-1 being plugged in explosion-proof aluminium flake 2, and specifically, described is explosion-proof
There is 2 periphery of aluminium flake formation between inside edge 2 inner wall of 2-1, the inside edge 2-1 and explosion-proof aluminium flake of downward and inside bending to insert
Enter the card slot 8 of the ring fin 5-1.
2 inner wall of explosion-proof aluminium flake in the pressure-releasing chamber 4 has to contract and the contraction section 6 that keeps inner wall thinning, institute
The contraction section 6 stated is in skewed obliquely upward, and 6 lower end of contraction section is flushed with 3 central protuberance face of aluminium flake is connect, 6 upper end of contraction section
With planes align in cage ring 5, the contraction section 6 has from the lower end inclined-plane 6-1 that the heart extends thereto, the inclined-plane 6-1's
Top terminates in plane extension line in cage ring 5.
The present invention is by being arranged to contraction section 6 for 2 inner wall of explosion-proof aluminium flake being located in pressure-releasing chamber 4, so that the part is anti-
Quick-fried 2 inner wall of aluminium flake is thinning, to reduce the cut-out resistance between connection aluminium flake 3 and explosion-proof aluminium flake 2, in lithium battery drop-in short circuit
When internal pressure being caused to increase, cooperation splits slot above and below, is quickly deformed explosion-proof aluminium flake 2, battery runs down prevents battery
Explosion.When inner pressure of battery increase to a certain extent after, explosion-proof aluminium flake 2 is broken, thus in time discharge lithium battery interior pressure,
Prevent the danger that lithium battery fail in compression even generates explosion.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (4)
1. a kind of lithium battery anti-package combined hat, including the sealing ring (1) being installed between lithium battery steel shell upper end opening, sealing ring
(1) it is arranged between inner ring explosion-proof aluminium flake (2), connection aluminium flake (3), cardiac prominence in connection aluminium flake (3) is equipped with below explosion-proof aluminium flake (2)
It rises and is bonded with explosion-proof aluminium flake (2) bottom surface, connection aluminium flake (3) central protuberance two sides form pressure-releasing chamber (4), are located at connection aluminium flake (3)
It is connected with cage ring (5) between outer ledge and explosion-proof aluminium flake (2) inner wall, connection aluminium flake (3) central protuberance part has opening
Slot is split on upward, offered on explosion-proof aluminium flake (2) inner wall corresponding with cage ring (5) upper surface it is downward opening under split slot,
It is characterized in that: cage ring (5) periphery has the ring fin (5-1) being plugged in explosion-proof aluminium flake (2) outer periphery, it is located at
Explosion-proof aluminium flake (2) inner wall in the pressure-releasing chamber (4) has to contract and the contraction section (6) that keeps inner wall thinning.
2. lithium battery anti-package combined hat as described in claim 1, it is characterized in that: the contraction section (6) is in incline obliquely upward
Ramp-like, contraction section (6) lower end is flushed with aluminium flake (3) central protuberance face is connect, plane on contraction section (6) upper end and cage ring (5)
Flush, the contraction section (6) have from lower end thereto the heart extend inclined-plane (6-1), the top of the inclined-plane (6-1) terminate in every
From plane extension line on circle (5).
3. lithium battery anti-package combined hat as claimed in claim 2, it is characterized in that: the company of offering on the connection aluminium flake (3)
The through-hole (7) of logical pressure-releasing chamber (4).
4. lithium battery anti-package combined hat as described in claim 1, it is characterized in that: explosion-proof aluminium flake (2) periphery have to
Lower and inwardly bending inside edge (2-1), forms described in insertion between the inside edge (2-1) and explosion-proof aluminium flake (2) inner wall
The card slot (8) of ring fin (5-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910737442.7A CN110444701A (en) | 2019-08-09 | 2019-08-09 | Lithium battery anti-package combined hat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910737442.7A CN110444701A (en) | 2019-08-09 | 2019-08-09 | Lithium battery anti-package combined hat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110444701A true CN110444701A (en) | 2019-11-12 |
Family
ID=68434449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910737442.7A Pending CN110444701A (en) | 2019-08-09 | 2019-08-09 | Lithium battery anti-package combined hat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110444701A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113394462A (en) * | 2020-03-11 | 2021-09-14 | Oppo（重庆）智能科技有限公司 | Press fitting equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104716281A (en) * | 2015-04-09 | 2015-06-17 | 常州市武进中瑞电子有限公司 | Thin type anti-explosion cylinder lithium battery combined cap |
| CN204464333U (en) * | 2015-04-09 | 2015-07-08 | 常州市武进中瑞电子有限公司 | Can ultrasonic bonding simple explosion-proof combined hat |
| CN204792935U (en) * | 2015-07-08 | 2015-11-18 | 常州市武进中瑞电子有限公司 | All -round, ne -leakage lithium cell |
| CN207517742U (en) * | 2017-09-21 | 2018-06-19 | 深圳市沃特玛电池有限公司 | A kind of lithium ion battery cover |
| CN210325874U (en) * | 2019-08-09 | 2020-04-14 | 常州武进中瑞电子科技股份有限公司 | Lithium battery reverse-wrapping combined cap |
-
2019
- 2019-08-09 CN CN201910737442.7A patent/CN110444701A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104716281A (en) * | 2015-04-09 | 2015-06-17 | 常州市武进中瑞电子有限公司 | Thin type anti-explosion cylinder lithium battery combined cap |
| CN204464333U (en) * | 2015-04-09 | 2015-07-08 | 常州市武进中瑞电子有限公司 | Can ultrasonic bonding simple explosion-proof combined hat |
| CN204792935U (en) * | 2015-07-08 | 2015-11-18 | 常州市武进中瑞电子有限公司 | All -round, ne -leakage lithium cell |
| CN207517742U (en) * | 2017-09-21 | 2018-06-19 | 深圳市沃特玛电池有限公司 | A kind of lithium ion battery cover |
| CN210325874U (en) * | 2019-08-09 | 2020-04-14 | 常州武进中瑞电子科技股份有限公司 | Lithium battery reverse-wrapping combined cap |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113394462A (en) * | 2020-03-11 | 2021-09-14 | Oppo（重庆）智能科技有限公司 | Press fitting equipment |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |