CN207282542U - A kind of new type of safe column type lithium cell - Google Patents
A kind of new type of safe column type lithium cell Download PDFInfo
- Publication number
- CN207282542U CN207282542U CN201721384847.XU CN201721384847U CN207282542U CN 207282542 U CN207282542 U CN 207282542U CN 201721384847 U CN201721384847 U CN 201721384847U CN 207282542 U CN207282542 U CN 207282542U
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- CN
- China
- Prior art keywords
- shell
- groove
- lithium cell
- steel cap
- film
- 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.)
- Expired - Fee Related
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Classifications
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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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- Secondary Cells (AREA)
- Gas Exhaust Devices For Batteries (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
It the utility model is related to a kind of new type of safe column type lithium cell, including steel cap, the thermal resistor of organic positive temperature coefficient, burst disk, seal gasket, film, battery core and shell, electrolyte is housed between shell and battery core, the shell is equipped with flange, the steel cap, thermal resistor, burst disk, seal gasket and film are pressed in the flange successively from top to bottom, it is raised that shell is equipped with a circle, it is in contact to form linear sealing with film, multiple through holes are uniformly provided with steel cap, at least provided with a groove on the side wall of outer shell, the groove material is stretched thinning, thickness is less than the 50% of shell wall thickness.Shell forms linear sealing with film, improves the sealing performance of burst disk, prevents battery from leakage occurs.The groove set on side wall of outer shell, can make the intensity local weakness of shell, when inside battery changes expansion, and burst disk surprisingly fails rupture, groove can pressure-rupturable, double insurance, ensures user's safety.
Description
Technical field
It the utility model is related to technical field of lithium batteries, more particularly to a kind of new type of safe column type lithium cell.
Background technology
Column type lithium cell is because having the advantages that storage energy density is high, cruising ability is strong, having extended cycle life, in colliery, doctor
Widely using in treatment, fire-fighting, civilian consumption and digital product, lithium battery, which explodes, in order to prevent is typically provided blast resistance construction, and one
As include steel cap, the thermal resistor of organic positive temperature coefficient, burst disk, seal gasket and film, then successively by shell pressure
Tightly, but contacted between shell and film for face, sealing problem easily occur, electrolyte easily leaks, and influences lithium battery
Normal use.
Utility model content
The purpose of this utility model is to provide a kind of new, safer column type lithium cell.
The utility model is realized in this way：A kind of new type of safe column type lithium cell, including steel cap, organic positive temperature coefficient
Thermal resistor, burst disk, seal gasket, film, battery core and shell, electrolyte is housed between shell and battery core, it is described outer
Shell is equipped with flange, and steel cap, thermal resistor, burst disk, seal gasket and the film are pressed in institute successively from top to bottom
State in flange, the shell is equipped with a circle protrusion, is in contact to form linear sealing with film, is uniformly provided with the steel cap multiple
Through hole, at least provided with a groove on the side wall of outer shell, the groove material is stretched thinning, and thickness is less than shell wall thickness
50%.
Wherein, the groove is vertical groove, and size is 40 mm x2mm.Length direction is 40 mm, groove width 2mm.
Wherein, the groove is horizontal groove, and size is 20 mm x2mm.Length direction is 20 mm, groove width 2mm.
Wherein, the groove is cross recess, and size is 20 mm x40 mm x 2mm.Length direction is 40 mm, width
Direction is 20mm, groove width 2mm.
Wherein, the battery core upper and lower ends are connected with conducting wire, and the conducting wire of upper end is connected with steel cap, the conducting wire and shell of lower end
Inner bottom surface connects, and the steel cap outer surface is additionally provided with stud, and the outer bottom of the shell also is provided with stud.
Wherein, the stud is fixed by welding on outer casing bottom and steel cap.
Wherein, the shell is stainless iron shell.
Wherein, the burst disk is aluminium flake.
The beneficial effects of the utility model are：The new type of safe column type lithium cell includes steel cap, organic positive temperature coefficient
Thermal resistor, burst disk, seal gasket, film, battery core and shell, it is raised that the shell is equipped with a circle, with film phase
Contact forms linear sealing, and after being compressed using above-mentioned technical proposal encapsulation, shell forms linear sealing with film, substantially increases anti-
The sealing performance of quick-fried, prevents battery from leakage occurs, and shell made of stainless iron has stronger physical property, and housing is not easy
It is damaged.In addition, at least provided with a groove on the side wall of outer shell, the groove material is stretched thinning, and thickness is less than outer
The 50% of shell wall thickness.The groove set on side wall of outer shell, can make the intensity local weakness of shell, and wall thickness declines 50%, intensity
1/4 can be generally dropped to, when inside battery changes expansion, burst disk can rupture at first, when burst disk surprisingly fails brokenly
When splitting, groove meeting pressure-rupturable, double insurance, will not explode, and ensure that the safety of user.
Brief description of the drawings
Fig. 1 is the cross-sectional view of new type of safe column type lithium cell embodiment described in the utility model；
Fig. 2 is enlarged drawing at A in Fig. 1.
1st, steel cap；11st, through hole；2nd, thermal resistor；3rd, burst disk；4th, seal gasket；5th, film；6th, battery core；7th, shell；
71st, flange；72nd, it is raised；73rd, groove；8th, stud.
Embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, is further elaborated the utility model.It should be appreciated that specific embodiment described herein is only explaining
The utility model, is not used to limit the utility model.
As the embodiment of new type of safe column type lithium cell described in the utility model, as depicted in figs. 1 and 2, including steel cap
1st, the thermal resistor 2 of organic positive temperature coefficient, burst disk 3, seal gasket 4, film 5, battery core 6 and shell 7, shell 7 and electricity
Electrolyte is housed, the shell 7 is equipped with flange 71, the steel cap 1, thermal resistor 2, burst disk 3, fluid sealant between core 6
Pad 4 and film 5 are pressed in the flange 71 successively from top to bottom, and the shell 7 is equipped with a circle protrusion 72, with film 5
It is in contact to form linear sealing, is uniformly provided with multiple through holes 11 on the steel cap 1, it is recessed at least provided with one on 7 side wall of shell
Groove 73, material is stretched thinning at the groove 73, and thickness is less than the 50% of 7 wall thickness of shell.
In the present embodiment, the shell 7 is stainless iron shell, and the burst disk 3 is aluminium flake.
In the present embodiment, the groove 73 is cross recess, and size is 20 mm x40 mm x 2mm.Certainly, according to
The different demands of product, may be designed in other forms, for example the groove is designed as vertical groove, and size is 40 mm
x2mm；Or the groove is horizontal groove, size is 20 mm x2mm.When the length and width dimensions of groove 73 are smaller, it is not easy to
Rupture, when only size is larger, could form obvious weak spot, above-mentioned size is the preferred size after many experiments.
Lithium battery monomer generally realizes lithium battery monomer when forming battery pack by being welded to connect plate in the prior art
Between electrical connection, but when some monomer damages, have no idea to dismantle and replace substantially.In the present embodiment, the battery core 6
Upper and lower ends are connected with conducting wire, and the conducting wire of upper end is connected with steel cap 1, and the conducting wire of lower end is connected with 7 inner bottom surface of shell, the steel cap
1 outer surface is additionally provided with stud 8, and the outer bottom of the shell 7 also is provided with stud 8, and the stud 8 is fixed by welding in shell 7
On bottom and steel cap 1.Through hole is opened up on cell connector, is then set on stud 8, is then locked by nut,
Battery pack is formed, assembling mode is simply efficient, easily disassembled and replacement.
The new type of safe column type lithium cell include steel cap 1, the thermal resistor 2 of organic positive temperature coefficient, burst disk 3,
Seal gasket 4, film 5, battery core 6 and shell 7, the shell 7 are equipped with a circle protrusion 72, and being in contact with film 5, it is close to form line
Envelope, after being compressed using above-mentioned technical proposal encapsulation, shell 7 forms linear sealing with film 5, substantially increases the close of burst disk 3
Sealing property, prevents battery from leakage occurs, and shell 7 made of stainless iron has a stronger physical property, housing not cracky.Separately
Outside, on 7 side wall of shell at least provided with a groove 73, material is stretched thinning at the groove 73, and thickness is less than shell
The 50% of wall thickness.Groove 73 can make the intensity local weakness of shell 7, and wall thickness declines 50%, and intensity can generally drop to 1/4, when
Inside battery change expansion when, burst disk 3 can rupture at first, can be by when burst disk 3 is unexpected fails rupture, at groove 73
Crush and split, double insurance, will not explode, and ensure that the safety of user.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (8)
- A kind of 1. new type of safe column type lithium cell, it is characterised in that including steel cap, organic positive temperature coefficient thermal resistor, Burst disk, seal gasket, film, battery core and shell, are equipped with electrolyte between shell and battery core, the shell is equipped with flange, Steel cap, thermal resistor, burst disk, seal gasket and the film are pressed in the flange successively from top to bottom, described Shell is equipped with a circle protrusion, is in contact to form linear sealing with film, multiple through holes, the shell are uniformly provided with the steel cap At least provided with a groove on side wall, the groove material be stretched it is thinning, thickness be less than shell wall thickness 50%.
- 2. new type of safe column type lithium cell according to claim 1, it is characterised in that the groove is vertical groove, size For 40 mm x2mm.
- 3. new type of safe column type lithium cell according to claim 1, it is characterised in that the groove is horizontal groove, size For 20 mm x2mm.
- 4. new type of safe column type lithium cell according to claim 1, it is characterised in that the groove is cross recess, size For 20 mm x40 mm x 2mm.
- 5. according to any one of Claims 1-4 new type of safe column type lithium cell, it is characterised in that two above and below the battery core End is connected with conducting wire, and the conducting wire of upper end is connected with steel cap, and the conducting wire of lower end is connected with shell inner bottom surface, and the steel cap outer surface is also Equipped with stud, the outer bottom of the shell also is provided with stud.
- 6. new type of safe column type lithium cell according to claim 5, it is characterised in that the stud is fixed by welding in outer On shell bottom and steel cap.
- 7. new type of safe column type lithium cell according to claim 1, it is characterised in that the shell is stainless iron shell.
- 8. new type of safe column type lithium cell according to claim 1, it is characterised in that the burst disk is aluminium flake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721384847.XU CN207282542U (en) | 2017-10-24 | 2017-10-24 | A kind of new type of safe column type lithium cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721384847.XU CN207282542U (en) | 2017-10-24 | 2017-10-24 | A kind of new type of safe column type lithium cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207282542U true CN207282542U (en) | 2018-04-27 |
Family
ID=61978868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721384847.XU Expired - Fee Related CN207282542U (en) | 2017-10-24 | 2017-10-24 | A kind of new type of safe column type lithium cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207282542U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022095342A1 (en) * | 2020-11-09 | 2022-05-12 | 深圳市合壹新能技术有限公司 | Battery housing structure and button battery |
-
2017
- 2017-10-24 CN CN201721384847.XU patent/CN207282542U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022095342A1 (en) * | 2020-11-09 | 2022-05-12 | 深圳市合壹新能技术有限公司 | Battery housing structure and button battery |
| JP7554514B2 (en) | 2020-11-09 | 2024-09-20 | 深▲セン▼市合壹新能技術有限公司 | Battery case structure and button battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180427 Termination date: 20191024 |