CN2865003Y - Lithium battery cover board assembly and battery - Google Patents
Lithium battery cover board assembly and battery Download PDFInfo
- Publication number
- CN2865003Y CN2865003Y CNU2006200026110U CN200620002611U CN2865003Y CN 2865003 Y CN2865003 Y CN 2865003Y CN U2006200026110 U CNU2006200026110 U CN U2006200026110U CN 200620002611 U CN200620002611 U CN 200620002611U CN 2865003 Y CN2865003 Y CN 2865003Y
- Authority
- CN
- China
- Prior art keywords
- pressing plate
- connector
- cover plate
- battery
- cover board
- 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 - Lifetime
Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims description 10
- 229910052744 lithium Inorganic materials 0.000 title claims description 10
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910001416 lithium ion Inorganic materials 0.000 claims abstract description 19
- 238000003825 pressing Methods 0.000 claims description 56
- 238000009413 insulation Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 abstract 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
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
- 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
Abstract
The utility model relates to the field of lithium ion battery, disclosing a cover board component for lithium ion battery, which comprises a pressure plate, a cover board, a connecting piece and an insulating sealing element. Said connecting piece connects the insulating sealing element, the cover board and the pressure plate to an integral. The connecting piece is electrically connected with the pressure plate. Said insulating sealing element insulates the connecting piece, the pressure plate and the cover board. The cover board component for lithium ion battery of the utility model can avoid short-circuit for the cover board and the shell resulted from the pressure board deflecting around the connecting piece as an axial center, it also provides good space on the pressure board for the tab welding.
Description
Technical field
A kind of battery that the utility model relates to a kind of battery component and has this assembly, the lithium ion battery that particularly relates to a kind of cover plate assembly of lithium ion battery and have this cover plate assembly.
Background technology
Lithium ion battery has been widely used in mobile products such as MP3, MP4, personal digital assistant, mobile phone, digital camera, electric tool, toy.Lithium ion battery as rectangular lithium ion battery, comprises housing, electrode coiling body and battery cover board assembly.The electrode coiling body comprises positive plate, barrier film, negative plate, is to isolate by barrier film between positive plate and the negative plate and be wound as integrally formed coiling body; Wherein, positive plate is provided with anode ear, and negative plate is provided with negative electrode lug.Electrode roll is positioned at housing around body, and forms battery by the cover plate assembly seal casinghousing.
See also Fig. 1, Fig. 2, a kind of battery cover board assembly comprises pressing plate 1, connector 2, cover plate 5 and seal 3, and cover plate 5 is provided with liquid injection hole 6.Pressing plate 1 is positioned at the side of cover plate assembly towards enclosure interior, connector one end links to each other with the pressing plate electricity, the other end runs through the outside that cover plate is positioned at cover plate assembly, and seal is used for insulation cover plate and connector and cover plate and pressing plate, and the position that the cover plate upper connector is run through seals simultaneously.Battery plate that this cover plate assembly is made and the seal that is used for insulated enclosure have only an end to run through with connector to be fixed on pressing plate, when battery is given a shock, this pressing plate is axle center deflection easily with the connector, depart from insulating sealer and contact, cause internal short-circuit and cause that battery scraps even explode with the cover plate or the outer casing inner wall of battery.So Fig. 3, lithium battery cap board component shown in Figure 4 have occurred, this cover plate assembly all is provided with the projection 7 that is higher than the pressing plate plane at the edge of insulating sealer 3.This projection is positioned at the outside of pressing plate, and is around one week of pressing plate, that pressing plate is spacing in this projection 7.This structure can solve in the above-mentioned battery use, and pressing plate skew seal is with the problem of battery cover board or outer casing inner wall contact short circuit.Yet because whole pressing plate is depressed in the projection 7, this sunk structure is unfavorable for lug is welded to welding operation on the pressing plate, influences production efficiency.
The utility model content
For addressing the above problem, the purpose of this utility model is: provide a kind of safe and practical, easy soldering polar ear lithium battery cap board component and lithium ion battery.
The utility model is achieved through the following technical solutions: a kind of lithium battery cap board component, comprise pressing plate, cover plate, connector and insulating sealer, described connector connects as one insulating sealer, cover plate, pressing plate, connector is electrically connected with pressing plate, described insulating sealer is with connector, pressing plate and cover plate insulation, and the terminal both sides away from connector of described pressing plate are provided with the seal projection.
As the improvement of above-mentioned technology, this projection is located at and is higher than the pressing plate plane.
Also design a kind of lithium ion battery in addition, comprise cover plate assembly, this cover plate assembly comprises pressing plate, cover plate, connector and insulating sealer, described connector connects as one insulating sealer, cover plate, pressing plate, connector is electrically connected with pressing plate, described insulating sealer is with connector, pressing plate and cover plate insulation, and the terminal both sides away from connector of described pressing plate are provided with the seal projection.
As the improvement of above-mentioned technology, this projection is located at and is higher than the pressing plate plane.
Cover plate and housing short circuit phenomenon that the utility model can avoid pressing plate to cause for axle center deflection with the connector can provide a good lug welding space simultaneously again on pressing plate.
Description of drawings
Fig. 1 is the vertical view of the battery cover board assembly that adopted of existing lithium ion battery.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the vertical view of the another kind of battery cover board assembly that adopted of existing lithium ion battery.
Fig. 4 is the B-B cutaway view of Fig. 3.
Fig. 5 is the vertical view of the lithium ion battery cover board assembly of the utility model embodiment 1.
Fig. 6 is the C-C cutaway view of Fig. 5.
Fig. 7 is the vertical view of the lithium ion battery cover board assembly of the utility model embodiment 2.
Fig. 8 is the D-D cutaway view of Fig. 7.
Fig. 9 is a square aluminum case lithium ion battery schematic diagram.
Figure 10 is the E-E cutaway view of Fig. 9 among the embodiment 3.
Figure 11 is the E-E cutaway view of Fig. 9 among the embodiment 4.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Embodiment 1:
As Fig. 5, shown in Figure 6, a kind of lithium battery cap board component comprises pressing plate 1, cover plate 5, connector 2 and insulating sealer 3.Pressing plate 1 is positioned at a side of cover plate.Connector 2 one ends and pressing plate 1 are electrical connected, and the other end runs through the opposite side that cover plate 5 is positioned at cover plate.Seal 3 is between cover plate 5 and the connector 2 and between cover plate 5 and the pressing plate 1, and to they isolation of insulating, and the position that cover plate 5 upper connectors 2 are run through seals.The both sides of pressing plate end 13 respectively are provided with a projection 8, and are higher than the plane of pressing plate, and its length on the edge is 1 millimeter.Cover plate 5 is provided with liquid injection hole 6.
In the manufacturing process of lithium battery, pressing plate is used to weld negative electrode lug.In the lithium ion battery of making, the projection 8 of this dual-side is limited in pressing plate 1 in two projections on the seal 3, and when battery was given a shock, the pressing plate of avoiding being connected with negative pole 1 was run into cover plate or the inner walls that is connected with anode ear, causes short circuit; In addition, two projections are arranged on the edge tail away from connector, and making does not have projection outside the welding position be used to weld negative electrode lug, have made things convenient for the lug welding operation.
Embodiment 2:
As Fig. 7, shown in Figure 8, the difference of present embodiment and embodiment 1 is: set up a projection 9 at pressing plate 1 end 13, projection 9 is positioned at terminal 13 outsides, is higher than the pressing plate plane, and is connected as a single entity with the projection 8 that is arranged on terminal 13 both sides.
Present embodiment is except having the identical effect of embodiment 1, owing to set up projection 9 at the end of insulated connecting piece 2, with projection 8 actings in conjunction of dual-side, guarantee that further whole pressing plate 1 is spacing all the time in seal 3, further improved the security performance of battery.
Embodiment 3:
A kind of aluminum hull rectangular lithium ion battery as Fig. 9, shown in Figure 10, comprises aluminium mass shell body 12, electrode coiling body 11 and cover plate assembly, and electrode coiling body 11 is positioned at housing 12, and forms battery by cover plate assembly closure casing 12.
Electrode coiling body 11 is provided with positive and negative lug.Electrode coiling body 11 comprises positive plate, barrier film, negative plate, is to isolate by barrier film between positive plate and the negative plate and be wound as integrally formed coiling body; Wherein, positive plate is provided with anode ear, and negative plate is provided with negative electrode lug 10.
Cover plate assembly is the cover plate assembly described in the embodiment 1.
Anode ear is welded on the inwall of housing 12 (also can be welded on the cover plate 5), and negative electrode lug 10 is welded on the pressing plate 1.8 of projections are arranged on the end 13 of pressing plate 1, so make things convenient for battery pole ear 10 welding operations.On the other hand, pressing plate 1 is spacing in the middle of projection 8, even the vibrations skew, pressing plate 1 still has projection 8 insulation with housing 12, and inside can short circuit, so battery safety improves greatly.
Embodiment 4: another kind of aluminum hull rectangular lithium ion battery, as Fig. 9, shown in Figure 11, the present embodiment difference from Example 3 is: the cover plate assembly that present embodiment adopts is that cover plate assembly is the cover plate assembly described in the embodiment 2.Other aspects are identical with embodiment 3.
Because the terminal end of the insulated connecting piece 2 of the cover plate assembly that present embodiment adopted also is provided with projection 9, guarantee that further whole pressing plate 1 is fully spacing in seal 3 all the time, further improved the security performance of battery.
Claims (4)
1, a kind of lithium battery cap board component, comprise pressing plate, cover plate, connector and insulating sealer, described connector connects as one insulating sealer, cover plate, pressing plate, connector is electrically connected with pressing plate, described insulating sealer is with connector, pressing plate and cover plate insulation, and it is characterized in that: the terminal both sides away from connector of described pressing plate are provided with the seal projection.
2, lithium battery cap board component as claimed in claim 1 is characterized in that: described projection is located at and is higher than the pressing plate plane.
3, a kind of lithium ion battery, comprise cover plate assembly, this cover plate assembly comprises pressing plate, cover plate, connector and insulating sealer, described connector connects as one insulating sealer, cover plate, pressing plate, connector is electrically connected with pressing plate, described insulating sealer is with connector, pressing plate and cover plate insulation, and it is characterized in that: the terminal both sides away from connector of described pressing plate are provided with the seal projection.
4, lithium battery cap board component as claimed in claim 3 is characterized in that: described projection is located at and is higher than the pressing plate plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200026110U CN2865003Y (en) | 2006-01-03 | 2006-01-03 | Lithium battery cover board assembly and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200026110U CN2865003Y (en) | 2006-01-03 | 2006-01-03 | Lithium battery cover board assembly and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2865003Y true CN2865003Y (en) | 2007-01-31 |
Family
ID=37677454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200026110U Expired - Lifetime CN2865003Y (en) | 2006-01-03 | 2006-01-03 | Lithium battery cover board assembly and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2865003Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101567431B (en) * | 2008-04-24 | 2012-12-12 | 三星Sdi株式会社 | Battery pack |
| WO2013000414A1 (en) * | 2011-06-28 | 2013-01-03 | Shenzhen Byd Auto R&D Company Limited | Cover assembly and battery comprising the same |
| CN103378321A (en) * | 2012-04-20 | 2013-10-30 | 比亚迪股份有限公司 | Cover plate component and battery with same |
| WO2019148636A1 (en) * | 2018-01-31 | 2019-08-08 | 宁德时代新能源科技股份有限公司 | Battery module |
-
2006
- 2006-01-03 CN CNU2006200026110U patent/CN2865003Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101567431B (en) * | 2008-04-24 | 2012-12-12 | 三星Sdi株式会社 | Battery pack |
| WO2013000414A1 (en) * | 2011-06-28 | 2013-01-03 | Shenzhen Byd Auto R&D Company Limited | Cover assembly and battery comprising the same |
| US10333131B2 (en) | 2011-06-28 | 2019-06-25 | Byd Company Limited | Cover assembly and battery comprising the same |
| CN103378321A (en) * | 2012-04-20 | 2013-10-30 | 比亚迪股份有限公司 | Cover plate component and battery with same |
| WO2019148636A1 (en) * | 2018-01-31 | 2019-08-08 | 宁德时代新能源科技股份有限公司 | Battery module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070131 |
|
| EXPY | Termination of patent right or utility model | ||
| DD01 | Delivery of document by public notice |
Addressee: Wang Chunguang Document name: Notification of Expiration of Patent Right Duration |