CN207303148U - A kind of lithium battery - Google Patents
A kind of lithium battery Download PDFInfo
- Publication number
- CN207303148U CN207303148U CN201720691981.8U CN201720691981U CN207303148U CN 207303148 U CN207303148 U CN 207303148U CN 201720691981 U CN201720691981 U CN 201720691981U CN 207303148 U CN207303148 U CN 207303148U
- Authority
- CN
- China
- Prior art keywords
- plate
- cover board
- conductive
- board body
- pole piece
- 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
Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 30
- 229920001971 elastomer Polymers 0.000 claims abstract description 21
- 239000005060 rubber Substances 0.000 claims abstract description 21
- 239000012528 membrane Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000004804 winding Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
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
- 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
Landscapes
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a kind of lithium battery, including housing, battery and battery cover board, the battery cover board includes cover board body, a pair of conductive component for being used to connect pole piece is provided with cover board body, the conductive component includes being arranged on cover board body side and for connecting the interior conductive plate of pole piece and being arranged on the outer conductive plate of cover board body opposite side, and interior conductive plate is fixed on cover board body with outer conductive plate by the conductive riveting column through cover board body；Electro-insulating rubber layer is also embedded with the cover board body, electro-insulating rubber layer is used to respectively isolate cover board body with interior conductive plate, outer conductive plate, conductive riveting column；The conductive component includes positive conductive component and negative conductive component, and the conductive rubber of connection cover plate body and outer conductive plate is embedded with the electro-insulating rubber layer of positive conductive component.The lithium battery of the utility model, manufacture cost is low, service life length, simple in structure, easy to make.
Description
Technical field
The utility model belongs to battery technology field, and in particular to a kind of lithium battery.
Background technology
With the continuous improvement of living standard, various intelligent equipments occur in succession, for people's lives, work etc. raising side
Just, battery is required in various smart machines, unintelligent device as power resources, various equipment are realized by battery
Movable type changes, and can store clean energy resource by battery, reduce environmental pollution, therefore, battery has been brought greatly
It is convenient.With widely using for the digital product such as product such as mobile phone, laptop, lithium ion battery is with excellent performance at this
It is used widely in class product, and is progressively developing to other product applications, lithium ion battery has become mainstream.
But existing lithium battery still has that service life is short, quality weight, it is of high cost the problems such as.
Utility model content
The purpose of this utility model is that：For problems of the prior art, there is provided a kind of lithium battery, light-weight,
Solderability is strong, cost is low.
To achieve these goals, the technical solution adopted in the utility model is：
A kind of lithium battery, including housing, battery and battery cover board, the battery cover board include cover board body, cover board body
On be provided with a pair of conductive component for being used to connect pole piece, the conductive component includes being arranged on cover board body side and for connecting
Connect the interior conductive plate of pole piece and be arranged on the outer conductive plate of cover board body opposite side, interior conductive plate and outer conductive plate are by through lid
The conductive riveting column of plate body is fixed on cover board body；Electro-insulating rubber layer is also embedded with the cover board body, electro-insulating rubber layer is used for
Cover board body is isolated with interior conductive plate, outer conductive plate, conductive riveting column respectively；
The conductive component includes positive conductive component and negative conductive component, the electro-insulating rubber layer of positive conductive component
In be embedded with the conductive rubber of connection cover plate body and outer conductive plate.
Preferably, the battery includes several positive plates and several negative plates, and positive plate and negative plate are successively
Alternately laminated arrangement, and the membrane wound between positive plate and negative plate by S-shaped is isolated, and is stacked in positive plate and negative plate
And wind the core periphery winding formed after membrane and be wrapped with some circles of membrane；The positive plate or negative plate wraps
The connecting portion for extending pole piece body end is included, and connecting portion deviates the place end centre position arrangement of pole piece body, connection
Portion uses knuckle a of the radius for 35-70mm between end centre position side and pole piece body, connecting portion
Knuckle b of the radius for 10-25mm is used between other side and pole piece body；When positive plate and negative plate stack, just
The connecting portion of pole piece and the connecting portion of negative plate are positioned opposite.
Preferably, the positive plate is made of copper product, and negative plate is made of aluminum.
Preferably, knuckle a of the connecting portion between end centre position side and pole piece body
Radius is 35mm.
Preferably, the connecting portion is away from the knuckle between the end centre position side and pole piece body
B radiuses are 10mm.
Preferably, the conductive component includes positive conductive component and negative conductive component, positive conductive component it is interior
Plating is equipped with the copper material bed of material on conductive plate.
Preferably, it is provided with Explosion-proof cap on the cover board body.
Preferably, it is provided with liquid injection hole on the cover board.
By adopting the above-described technical solution, the beneficial effects of the utility model are：
The lithium battery of the utility model, by setting conductive rubber in cover board body, shell is passed through with anode pole piece big
Resistive isolation, can effectively prevent that galvanic effect occurs between shell and electrode, accelerate the corrosion of shell, so as to improve
The service life of lithium battery；Further, it is strong to strengthen the structure of the connecting portion of pole piece using the knuckle of wide-angle for electrode slice
Degree, avoids the pole piece when battery is installed from easily snapping off；The lithium battery of the utility model, service life is long, of low cost, solderability
By force.
Brief description of the drawings
Fig. 1 is the lithium battery front view of the utility model.
Fig. 2 is the lithium battery decomposition diagram of the utility model.
Fig. 3 is the front view of the battery cover board of the utility model.
Fig. 4 is the top view of the battery cover board of the utility model.
Fig. 5 is the sectional view along A-A of Fig. 4.
Fig. 6 is the lithium cell core front view of the utility model.
Fig. 7 is the lithium cell core section structure schematic diagram of the utility model.
Fig. 8 is the positive plate of the utility model or the front view of negative plate.
Reference numeral：
100- battery cover boards, 101- cover board bodies, 102- Explosion-proof caps, 103- liquid injection holes, 110- conductive components, 111- are outer conductive
Plate, conductive plate in 112-, 113- conduction riveting columns, 114- conductive rubbers, 115- electro-insulating rubber layers；
200- batteries, 201- pole piece bodies, 202- connecting portions, 210- positive plates, 220- negative plates, 230- membranes；
300- housings.
Embodiment
With reference to Fig. 1-2, a kind of lithium battery, including housing 300, battery 200 and battery cover board 100.
With reference to Fig. 3-5, battery cover board 100 includes cover board body 101, is provided with cover board body 101 a pair of for connecting pole piece
Conductive component 110, the conductive component 110 includes being arranged on 101 side of cover board body and for connecting the interior conduction of pole piece
Plate 112 and the outer conductive plate 111 for being arranged on 101 opposite side of cover board body, interior conductive plate 112 and outer conductive plate 111 are by through lid
The conductive riveting column 113 of plate body 101 is fixed on cover board body 101；Electro-insulating rubber layer 115 is also embedded with the cover board body 101,
Electro-insulating rubber layer 115 is used to respectively isolate cover board body 101 with interior conductive plate 112, outer conductive plate 111, conductive riveting column 113.
Conductive component 110 includes positive conductive component and negative conductive component, on the interior conductive plate 112 of positive conductive component
Plating is equipped with the copper material bed of material.The interior conductive plate 112 of positive conductive component is welded to connect by the copper material bed of material and positive plate 210；Anode
The interior conductive plate 112 of conductive component is welded to connect with negative plate 220.Interior conductive plate 112 is by conductive riveting column 113 by electrical conductivity
Onto outer conductive plate 111, welding conductive column can connect external electrical equipment on outer conductive plate 111.Cathode in the present embodiment
Piece 210 is made of copper product, therefore sets the copper material bed of material to be easy to the interior conduction on the interior conductive plate 112 of positive conductive component
Plate 112 is welded to connect with positive plate 210.
The conductive rubber of connection cover plate body 101 and outer conductive plate 111 is embedded with the electro-insulating rubber layer 115 of positive conductive component
The outer conductive plate 111 of cover board body 101 and positive conductive component is electrically connected by glue 114, the conductive rubber 114, conductive rubber 114
Resistance selection 1-5k Ω, resistance value is larger, and since battery case is identical with the current potential of positive conductive component, electric current is very
It is small, it is not enough to discharge, but can effectively prevent that galvanic effect occurs between battery core and battery case.
Explosion-proof cap 102 is provided with cover board body 101, Explosion-proof cap 102 uses the connection relatively low with 101 intensity of cover board body
Mode, can avoid battery explosion by 102 pressure release of Explosion-proof cap.
Liquid injection hole 103 is provided with cover board, can be easily by cover board body 101 and battery container 300 by liquid injection hole 103
After welded seal connection, electrolyte is reinjected, it is easy to operate.
With reference to Fig. 6-8, battery 200 includes several positive plates 210 and several negative plates 220, positive plate 210 and negative
The alternately laminated arrangement, and the membrane 230 wound between positive plate 210 and negative plate 220 by S-shaped is isolated successively of pole piece 220,
The core periphery winding that is formed after membrane 230, which is stacked and wind, in positive plate 210 and negative plate 220 is wrapped with the membrane
230 some circles.
Positive plate 210 or negative plate 220 include the connecting portion 202 for extending 201 end of pole piece body, and connecting portion
202 deviate the place end centre positions arrangement of pole piece bodies 201, connecting portion 202 close to end centre position side with
Knuckle a of the radius for 35-70mm, other side and the pole piece body 201 of connecting portion 202 are used between pole piece body 201
Between use knuckle b of the radius for 10-25mm.As preferable technical solution, the connecting portion 202 is close to the end
Knuckle a radiuses between portion centre position side and pole piece body 201 are 35mm.The connecting portion 202 is away from described
End centre position side and pole piece body 201 between knuckle b radiuses be 10mm.The connecting portion 202 of pole piece and pole
The inner side of piece body 201 carries out transition using the larger fillet of radius, and outside carries out transition using the less fillet of radius so that
Intensity between connecting portion 202 and pole piece body 201 is higher, when carrying out bending welding, does not also allow easy fracture.
When positive plate 210 and negative plate 220 stack, the connecting portion 202 of positive plate 210 and the connecting portion of negative plate 220
202 is positioned opposite, so that the connecting portion 202 of positive plate 210 is located at side, the connecting portion 202 of negative plate 220 is positioned at another
Side, centre keep larger space, are independent of each other.
Positive plate 210 is made of copper product, and negative plate 220 is made of aluminum.
The lithium cell core 200 of the utility model, positive plate 210 and negative plate 220 when winding making, stacked gradually and put
Isolated while putting, and place by the S-shaped winding of membrane 230, and the bottom of positive plate 210 or negative plate 220 in winding
There is larger gap between the end of membrane 230, after pole piece has been laminated, membrane 230 is wound into whole core periphery again
Some circles are wound, so that whole core wrap be fixed, ultimately form 200 body of lithium cell core.
After the completion of the manufacture of lithium cell core 200, on the inside of the connecting portion 202 of the pole piece of lithium cell core 200 and cover board
Conductive plate 112 is welded to connect, and positive plate 210 connects interior conductive plate 112, the negative plate 220 of positive conductive component and connects during welding
The interior conductive plate 112 of negative conductive component, after connection is fixed, whole lithium cell core 200 is placed in housing 300, by pole piece
202 bending of connecting portion is placed in housing 300 so that cover board body 101 and the bead of housing 300 cover, then by being welded to connect
Cover board body 101 is fixedly connected with housing 300, and is sealed.Injected thereto finally by the liquid injection hole 103 on cover board body 101
Electrolyte, finally seals liquid injection hole 103, completes the assembling of whole lithium battery, easy to operate and conveniently.
Claims (8)
1. a kind of lithium battery, including housing (300), battery (200) and battery cover board (100), it is characterised in that
The battery cover board (100) includes cover board body (101), is provided with cover board body (101) a pair of for connecting pole piece
Conductive component (110), the conductive component (110) include being arranged on cover board body (101) side and for connecting the interior of pole piece
Conductive plate (112) and the outer conductive plate (111) for being arranged on cover board body (101) opposite side, interior conductive plate (112) and outer conduction
Plate (111) is fixed on cover board body (101) by the conductive riveting column (113) through cover board body (101)；The cover board body (101)
On be also embedded with electro-insulating rubber layer (115), electro-insulating rubber layer (115) be used for by cover board body (101) respectively with interior conductive plate
(112), outer conductive plate (111), conductive riveting column (113) isolation；
The conductive component (110) includes positive conductive component and negative conductive component, the electro-insulating rubber of positive conductive component
The conductive rubber (114) of connection cover plate body (101) and outer conductive plate (111) is embedded with layer (115).
2. lithium battery according to claim 1, it is characterised in that
The battery (200) includes several positive plates (210) and several negative plates (220), positive plate (210) and negative
Pole piece (220) alternately laminated arrangement, and the membrane wound between positive plate (210) and negative plate (220) by S-shaped successively
(230) isolate, stack and wind the core periphery that membrane (230) formed afterwards in positive plate (210) and negative plate (220) and wind and wrap up in
Equipped with described membrane (230) some circles；The positive plate (210) or negative plate (220) include extending pole piece body
(201) connecting portion (202) of end, and connecting portion (202) deviates the place end centre position arrangement of pole piece body (201),
Connecting portion (202) is close to use transition of the radius for 35-70mm between end centre position side and pole piece body (201)
Fillet a, knuckle b of the radius for 10-25mm is used between the other side and pole piece body (201) of connecting portion (202)；
When positive plate (210) is stacked with negative plate (220), the connecting portion (202) of positive plate (210) and the connecting portion of negative plate (220)
(202) it is positioned opposite.
3. lithium battery according to claim 2, it is characterised in that
The positive plate (210) is made of copper product, and negative plate (220) is made of aluminum.
4. lithium battery according to claim 2, it is characterised in that
The connecting portion (202) is close to the knuckle a between end centre position side and pole piece body (201) half
Footpath is 35mm.
5. lithium battery according to claim 2, it is characterised in that
The connecting portion (202) is away from the knuckle b between the end centre position side and pole piece body (201)
Radius is 10mm.
6. lithium battery according to claim 1 or 2, it is characterised in that
The conductive component includes positive conductive component and negative conductive component, the interior conductive plate (112) of positive conductive component
Upper plating is equipped with the copper material bed of material.
7. lithium battery according to claim 1 or 2, it is characterised in that
Explosion-proof cap (102) is provided with the cover board body (101).
8. according to the lithium battery described in claim 1 or 2, it is characterised in that
Liquid injection hole (103) is provided with the cover board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720691981.8U CN207303148U (en) | 2017-06-13 | 2017-06-13 | A kind of lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720691981.8U CN207303148U (en) | 2017-06-13 | 2017-06-13 | A kind of lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207303148U true CN207303148U (en) | 2018-05-01 |
Family
ID=62450016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720691981.8U Expired - Fee Related CN207303148U (en) | 2017-06-13 | 2017-06-13 | A kind of lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207303148U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107039606A (en) * | 2017-06-13 | 2017-08-11 | 四川南光新能源有限公司 | A kind of lithium battery |
-
2017
- 2017-06-13 CN CN201720691981.8U patent/CN207303148U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107039606A (en) * | 2017-06-13 | 2017-08-11 | 四川南光新能源有限公司 | A kind of lithium 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 |
Granted publication date: 20180501 |