CN107039606A - A kind of lithium battery - Google Patents
A kind of lithium battery Download PDFInfo
- Publication number
- CN107039606A CN107039606A CN201710444490.8A CN201710444490A CN107039606A CN 107039606 A CN107039606 A CN 107039606A CN 201710444490 A CN201710444490 A CN 201710444490A CN 107039606 A CN107039606 A CN 107039606A
- Authority
- CN
- China
- Prior art keywords
- conductive
- plate
- cover plate
- positive
- 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.)
- Pending
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
- 230000004888 barrier function Effects 0.000 claims description 12
- 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
- 238000010276 construction Methods 0.000 abstract 1
- 238000004804 winding Methods 0.000 description 5
- 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
- 230000000694 effects Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 239000000243 solution Substances 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
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process 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
-
- 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 of a single cell or a single battery
-
- 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
-
- 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
- H01M10/058—Construction or manufacture
-
- 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 of a single cell or a single battery
- H01M50/147—Lids or covers
- H01M50/155—Lids or covers characterised by the material
-
- 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
-
- 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
-
- 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
Abstract
The invention discloses a kind of lithium battery, including housing, battery and battery cover board, described battery cover board includes cover plate body, a pair of conductive components for connecting pole piece are provided with cover plate body, described conductive component includes being arranged on cover plate body side and for connecting the interior conductive plate of pole piece and being arranged on the outer conductive plate of cover plate body opposite side, and interior conductive plate is fixed on cover plate body with outer conductive plate by the conductive riveting post through cover plate body；Electro-insulating rubber layer is also embedded with described cover plate body, electro-insulating rubber layer is used to respectively isolate cover plate body with interior conductive plate, outer conductive plate, conductive riveting post；Described conductive component includes the conductive rubber that connection cover plate body and outer conductive plate are embedded with positive conductive component and negative conductive component, the electro-insulating rubber layer of positive conductive component.The lithium battery of the present invention, manufacturing cost is low, and service life is long, simple in construction, easy to make.
Description
Technical field
The invention belongs to cell art, and in particular to a kind of lithium battery.
Background technology
With the continuous improvement of living standard, various intelligent equipments occur in succession, are the raising sides such as people's life, work
Just, battery is required in various smart machines, unintelligent device as power resources, various equipment are realized by battery
Movable type changes, and clean energy resource can be stored by battery, reduces 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, notebook computer, lithium ion battery is with excellent performance at this
It is used widely, and is progressively developing to other product applications in class product, lithium ion battery has become main flow.
But, the problems such as existing lithium battery still has short service life, quality weight, cost is high.
The content of the invention
It is an object of the invention to：It is lightweight, solderable for problems of the prior art there is provided a kind of lithium battery
The strong, cost of property is low.
To achieve these goals, the technical solution adopted by the present invention is：
A kind of lithium battery, including housing, battery and battery cover board, described battery cover board include cover plate body, cover plate body
On be provided with a pair and be used to connect the conductive component of pole piece, described conductive component includes being arranged on cover plate body side and for connecting
Connect the interior conductive plate of pole piece and be arranged on the outer conductive plate of cover plate body opposite side, interior conductive plate and outer conductive plate are by through lid
The conductive riveting post of plate body is fixed on cover plate body；Electro-insulating rubber layer is also embedded with described cover plate body, electro-insulating rubber layer is used for
Cover plate body is isolated with interior conductive plate, outer conductive plate, conductive riveting post respectively；
Described 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, described battery includes several positive plates and several negative plates, and positive plate and negative plate are successively
Alternately laminated arrangement, and the barrier film wound between positive plate and negative plate by S-shaped isolates, and is stacked in positive plate and negative plate
And wind the core body periphery winding formed after barrier film and be wrapped with described some circles of barrier film；Described positive plate or negative plate is wrapped
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 radius for 35-70mm knuckle a between end centre position side and pole piece body, connecting portion
Radius is used between other side and pole piece body for 10-25mm knuckle b；When positive plate and negative plate are stacked, just
The connecting portion of pole piece and the connecting portion of negative plate are positioned opposite.
Preferably, described positive plate is made of copper product, and negative plate is made of aluminum.
Preferably, knuckle a of the described connecting portion between end centre position side and pole piece body
Radius is 35mm.
Preferably, described connecting portion is away from the knuckle between described end centre position side and pole piece body
B radiuses are 10mm.
Preferably, described conductive component include positive conductive component and negative conductive component, positive conductive component it is interior
Plating is provided with the copper material bed of material on conductive plate.
Preferably, it is provided with Explosion-proof cap on described cover plate body.
Preferably, it is provided with liquid injection hole on described cover plate.
By adopting the above-described technical solution, the beneficial effects of the invention are as follows：
The lithium battery of the present invention, by setting conductive rubber in cover plate body, big resistance is passed through by shell and anode pole piece
Isolation, can effectively prevent that galvanic effect occurs between shell and electrode, accelerate the corrosion of shell, so as to improve lithium electricity
The service life in pond；Further, electrode slice strengthens the structural strength of the connecting portion of pole piece using the knuckle of wide-angle, keeps away
Exempt from the pole piece when battery is installed to easily snap off；The lithium battery of the present invention, service life length, with low cost, solderability are strong.
Brief description of the drawings
Fig. 1 is the lithium battery front view of the present invention.
Fig. 2 is the lithium battery decomposing schematic representation of the present invention.
Fig. 3 is the front view of the battery cover board of the present invention.
Fig. 4 is the top view of the battery cover board of the present invention.
Fig. 5 is Fig. 4 A-A to sectional view.
Fig. 6 is the lithium cell core front view of the present invention.
Fig. 7 is the lithium cell core section structure sketch of the present invention.
Fig. 8 is the positive plate of the present invention or the front view of negative plate.
Reference：
100- battery cover boards, 101- cover plate bodies, 102- Explosion-proof caps, 103- liquid injection holes, 110- conductive components, 111- is outer conductive
Conductive plate in plate, 112-, 113- conduction riveting posts, 114- conductive rubbers, 115- electro-insulating rubber layers；
200- batteries, 201- pole piece bodies, 202- connecting portions, 210- positive plates, 220- negative plates, 230- barrier films；
300- housings.
Embodiment
Reference picture 1-2, a kind of lithium battery, including housing 300, battery 200 and battery cover board 100.
Reference picture 3-5, battery cover board 100 includes being provided with a pair on cover plate body 101, cover plate body 101 for connecting pole piece
Conductive component 110, described conductive component 110 includes being arranged on the side of cover plate body 101 and the interior conduction for connecting pole piece
Plate 112 and the outer conductive plate 111 for being arranged on the opposite side of cover plate body 101, interior conductive plate 112 and outer conductive plate 111 are by through lid
The conductive riveting post 113 of plate body 101 is fixed on cover plate body 101；Electro-insulating rubber layer 115 is also embedded with described cover plate body 101,
Electro-insulating rubber layer 115 is used to respectively isolate cover plate body 101 with interior conductive plate 112, outer conductive plate 111, conductive riveting post 113.
Conductive component 110 is included on positive conductive component and negative conductive component, the interior conductive plate 112 of positive conductive component
Plating is provided 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 with positive plate 210；Negative pole
The interior conductive plate 112 of conductive component is welded to connect with negative plate 220.Interior conductive plate 112 is by conductive riveting post 113 by electrical conductivity
Onto outer conductive plate 111, welding conductive pole can connect external electrical equipment on outer conductive plate 111.Positive pole 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 plate body 101 and positive conductive component is electrically connected with by glue 114, the conductive rubber 114, conductive rubber 114
Resistance selection 1-5k Ω, resistance value is larger, and because battery case is identical with the current potential of positive conductive component, therefore electric current is very
It is small, electric discharge is not enough to, but can effectively prevent that galvanic effect occurs between battery core and battery case.
Explosion-proof cap 102 is provided with cover plate body 101, Explosion-proof cap 102 uses the connection relatively low with the intensity of cover plate body 101
Mode, can pass through the pressure release of Explosion-proof cap 102, it is to avoid battery explosion.
Liquid injection hole 103 is provided with cover plate, can be easily by cover plate body 101 and battery container 300 by liquid injection hole 103
After welded seal connection, electrolyte is reinjected, it is easy to operate.
Reference picture 6-8, battery 200 includes several positive plates 210 and several negative plates 220, positive plate 210 and negative
The alternately laminated arrangement successively of pole piece 220, and the barrier film 230 wound between positive plate 210 and negative plate 220 by S-shaped isolates,
The core body periphery winding that is formed after barrier film 230, which is stacked and wind, in positive plate 210 and negative plate 220 is wrapped with described barrier film
230 some circles.
Positive plate 210 or negative plate 220 include the connecting portion 202 for extending the end of pole piece body 201, 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
Radius is used between pole piece body 201 for 35-70mm knuckle a, other side and the pole piece body 201 of connecting portion 202
Between use radius for 10-25mm knuckle b.As preferred technical scheme, described connecting portion 202 is close to the end
Knuckle a radiuses between portion centre position side and pole piece body 201 are 35mm.Described 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 are stacked, 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 keeps larger space, is 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 present invention, when winding making, placement is stacked gradually by positive plate 210 and negative plate 220,
And place while by barrier film 230 it is S-shaped winding isolate, and winding when positive plate 210 or negative plate 220 bottom with every
There is larger gap between the end of film 230, after pole piece has been laminated, barrier film 230 is wound into whole core body periphery and wound again
Some circles, so that whole core wrap be fixed, ultimately form the body of lithium cell core 200.
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 plate
Conductive plate 112 is welded to connect, and interior conductive plate 112, the negative plate 220 of the connection of positive plate 210 positive conductive component are connected during welding
The interior conductive plate 112 of negative conductive component, after being connected, whole lithium cell core 200 is placed in housing 300, by pole piece
The bending of connecting portion 202 is placed in housing 300 so that the bead of cover plate body 101 and housing 300 is covered, then by being welded to connect
Cover plate body 101 is fixedly connected with housing 300, and sealed.Injected thereto finally by the liquid injection hole 103 on cover plate body 101
Electrolyte, finally seals liquid injection hole 103, completes the assembling of whole lithium battery, simple 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
Described battery cover board (100) includes being provided with a pair on cover plate body (101), cover plate body (101) for connecting pole piece
Conductive component (110), described conductive component (110) includes being arranged on cover plate 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 plate body (101) opposite side, interior conductive plate (112) and outer conduction
Plate (111) is fixed on cover plate body (101) by the conductive riveting post (113) through cover plate body (101)；Described cover plate body (101)
On be also embedded with electro-insulating rubber layer (115), electro-insulating rubber layer (115) be used for by cover plate body (101) respectively with interior conductive plate
(112), outer conductive plate (111), conductive riveting post (113) isolation；
Described 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
Described battery (200) include several positive plates (210) and several negative plates (220), positive plate (210) and bear
Pole piece (220) alternately laminated arrangement, and the barrier film wound between positive plate (210) and negative plate (220) by S-shaped successively
(230) isolate, stack and wind the core body periphery that barrier film (230) formed afterwards in positive plate (210) and negative plate (220) and wind and wrap up in
Provided with described some circles of barrier film (230)；Described 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 radius for 35-70mm transition between end centre position side and pole piece body (201)
Fillet a, radius is used for 10-25mm knuckle b 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
Described 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
Described 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
Described connecting portion (202) is away from the knuckle b between described 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
Described conductive component includes positive conductive component and negative conductive component, the interior conductive plate (112) of positive conductive component
Upper plating is provided 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 described cover plate 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 described cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710444490.8A CN107039606A (en) | 2017-06-13 | 2017-06-13 | A kind of lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710444490.8A CN107039606A (en) | 2017-06-13 | 2017-06-13 | A kind of lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107039606A true CN107039606A (en) | 2017-08-11 |
Family
ID=59541935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710444490.8A Pending CN107039606A (en) | 2017-06-13 | 2017-06-13 | A kind of lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107039606A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109148168A (en) * | 2018-09-12 | 2019-01-04 | 张拉社 | A kind of end cap of supercapacitor and power battery |
| CN115458847A (en) * | 2021-06-09 | 2022-12-09 | 大众汽车股份公司 | Battery cell with cover element |
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| CN101232082A (en) * | 2007-01-25 | 2008-07-30 | 深圳华粤宝电池有限公司 | Battery cover plate with new type structure and secondary battery thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109148168A (en) * | 2018-09-12 | 2019-01-04 | 张拉社 | A kind of end cap of supercapacitor and power battery |
| CN115458847A (en) * | 2021-06-09 | 2022-12-09 | 大众汽车股份公司 | Battery cell with cover element |
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