CN201017922Y - Lithium ion battery cover board component and lithium ion battery - Google Patents
Lithium ion battery cover board component and lithium ion battery Download PDFInfo
- Publication number
- CN201017922Y CN201017922Y CNU2007201183293U CN200720118329U CN201017922Y CN 201017922 Y CN201017922 Y CN 201017922Y CN U2007201183293 U CNU2007201183293 U CN U2007201183293U CN 200720118329 U CN200720118329 U CN 200720118329U CN 201017922 Y CN201017922 Y CN 201017922Y
- Authority
- CN
- China
- Prior art keywords
- pole plate
- hole
- lithium ion
- annular boss
- ion battery
- 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
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 41
- 239000003792 electrolyte Substances 0.000 claims description 5
- 238000009413 insulation Methods 0.000 abstract 3
- 239000000463 material Substances 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 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
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model relates to a lithium ion battery cover board component, which comprises a cover board, an insulation piece, an electrode plate and a rivet, wherein the insulation piece is arranged between the cover board and the electrode plate, and a through hole is arranged on the cover board. A ring-shaped dummy club arranged in the through hole of the electrode plate and got through the insulation piece is arranged on one side of the electrode plate, and the rivet is riveted into the ring-shaped dummy club of the electrode plate through interference fit, to make the cover board connected with the electrode plate. The utility model also relates to a lithium ion battery using the battery cover board. The lithium ion battery cover board component and the battery of the utility model make the interference fit connection of the ring-shaped dummy club and the rivet performed in the through hole, not only the structure is simple and the riveting structure is arranged in the through hole, therefore the thickness of the cover board is effectively reduced and the whole lithium ion battery size is shortened.
Description
[technical field]
The utility model relates to a kind of battery component, is specifically related to a kind of cover plate assembly structure of lithium ion battery and adopts the battery of this cover plate assembly.
[background technology]
Lithium ion battery is a kind of big capacity, high-power battery, and it is mainly used on the mini-plant, particularly mobile phone, laptop computer, portable power tool.Lithium ion battery is generally formed by battery cover board assembly, battery container, electrolyte and by the battery unit that positive and negative plate and diaphragm paper are wound into.Battery cover board assembly comprises the pole plate that cooperates successively, last insulating trip, cover plate, following insulating trip, lug extension stem and pressing plate, and cover plate is provided with liquid injection hole.Generally use a solid rivet as connector at present in the industry.Use a solid rivet to exist the not high enough problem of seal degree between connector and last insulating trip and the following insulating trip, thereby cause battery gas leakage, cause the defective products rate to improve as connector.
[summary of the invention]
The purpose of this utility model provides a kind of lithium ion battery cover board assembly of simple in structure, good seal performance and adopts the battery of this cover plate assembly.The invention solves the not high enough problem of seal degree between connector and the seal, avoided battery gas leakage effectively, reduced the defective products rate of battery
The technical scheme that realizes described purpose is: a kind of lithium ion battery cover board assembly, comprise cover plate, insulating part, pole plate and rivet, and described insulating part is between cover plate and pole plate, and described cover plate offers through hole.Described pole plate one side is provided with one and passes insulating part and be accommodated in annular boss in the through hole of described pole plate, and described rivet is gone in the annular boss of pole plate by the interference fit riveting, and described cover plate is connected with described pole plate.
Described annular boss can produce deformation, and described insulating part is adjacent to cover plate, and body stretches out the through hole of cover plate along the inwall of through hole, and the insulating part that described riveting is gone in the annular boss squeezing through-hole of rivet seals through hole.
Described pole plate forms a closed space in annular boss and between the rivet.
Be provided with the lug extension stem between described pole plate and the insulating part, described lug extension stem offers the through hole that passes for annular boss, and described lug extension stem is connected with pole plate that has annular boss or rivet.
Form conductive path between described lug extension stem and the pole plate.
A kind of lithium ion battery, comprise battery container and be contained in wherein battery unit and the battery cover board assembly of electrolyte and sealed cell housing, described cover plate assembly comprises cover plate, insulating part, pole plate and rivet, described insulating part is between cover plate and pole plate, described cover plate offers through hole, it is characterized in that: described pole plate one side is provided with one and passes insulating part and be accommodated in annular boss in the through hole of described pole plate, described rivet is gone in the annular boss of pole plate by the interference fit riveting, and described cover plate is connected with described pole plate.
Described annular boss can produce deformation, and described insulating part is adjacent to cover plate, and body stretches out the through hole of cover plate along the inwall of through hole, and the insulating part that described riveting is gone in the annular boss squeezing through-hole of rivet seals through hole.
Described pole plate forms a closed space in annular boss and between the rivet.
Be provided with the lug extension stem between described pole plate and the insulating part, described lug extension stem offers the through hole that passes for annular boss, and described lug extension stem is connected with pole plate that has annular boss or rivet.
Described lug extension stem connects a cell polar ear, forms conductive path between described cell polar ear, lug extension stem and the pole plate.
The utility model adopts described technical scheme, its beneficial technical effects is: 1) lithium ion battery cover board assembly of the present utility model and battery, the interference fit of annular boss and rivet is connected in through hole carries out, not only simple in structure and since the riveted joint structure be arranged in the through hole, so can effectively reduce cover sheet thickness, dwindle the size of entire lithium ion battery, simultaneously, so because annular boss also interferes fixing more firm with the cover plate through-hole wall; 2) lithium ion battery cover board assembly of the present utility model and battery are in the riveting process, owing to form interference fit between the annular boss of pole plate and the rivet, and described annular boss has certain deformation, thereby the insulating part in the through hole is pushed sealed through hole so have the pole plate of annular boss, strengthened the sealing effectiveness of whole cover plate assembly and respective battery, also avoid simultaneously the appearance of battery gas leakage situation, thereby greatly reduced the defective products rate of battery; 3) lithium ion battery cover board assembly of the present utility model and battery with the lug extension stem also together riveting go into cover plate assembly, when battery is assembled, can improve lug and be connected with conduction between the pole plate, make that assembled battery cover plate assembly or battery are convenient.
[description of drawings]
Below by embodiment also in conjunction with the accompanying drawings, the utility model is described in further detail:
Fig. 1 is a lithium ion battery cover board assembly plan view of the present utility model;
Fig. 2 is a lithium ion battery cover board assembly upward view of the present utility model;
Fig. 3 is the A-A cutaway view of lithium ion battery cover board assembly among Fig. 1;
Fig. 4 is another execution mode structure chart of lithium ion battery cover board assembly of the present utility model;
Fig. 5 is lithium ion battery structure figure of the present utility model.
[embodiment]
See also Fig. 1 to Fig. 3, Fig. 1 to Fig. 3 is first kind of execution mode of the utility model lithium ion battery cover board assembly, and described lithium ion battery cover board assembly comprises cover plate 1, insulating part, lug extension stem 3, the pole plate 4 that has annular boss 8 and rivet 5.
Cover plate 1 is provided with through hole, and in the present embodiment, insulating part comprises insulating part 2 and following insulating part 10.As another kind of execution mode of the present utility model, described upper and lower insulating part also can be integral structure.The through hole that is respectively arranged with on insulating part and the lug extension stem 3.The annular boss 8 of pole plate 4 passes insulating part 2, cover plate 1, following insulating part 10 and lug extension stem 3 successively, and then, rivet 5 is gone into the annular boss 8 of described pole plate 4 from the opposite side riveting of cover plate 1.Being connected between described rivet 5 and the annular boss 8 adopted interference fit, and the annular boss 8 of described pole plate 4 makes described cover plate 1, insulating part, lug extension stem 3 and pole plate 4 be connected securely with interference fit between the rivet 5.It is to carry out in the through hole of battery cover board 1 that the interference fit of described annular boss 8 and rivet 5 is connected, not only simple in structure and also since the riveted joint structure be arranged in the through hole, so can effectively reduce cover sheet thickness, dwindle the size of entire lithium ion battery
In the present embodiment, the annular boss 8 of riveting with rivet 5 has certain deformation, can produce extruding to the last insulating part 2 that is arranged in the through hole, making the sealing of formation to cover plate 1 through hole of combining closely between annular boss 8 and the insulating part 2.At this moment, lug extension stem 3 is connected with rivet 5.There is a closed space 9 in pole plate 4 in the connector in annular boss 8 and between the rivet 5.In the present embodiment, the axial section of the inwall of described annular boss 8 can be step-like or horn-like or other shape.In the present embodiment, the described material that has the pole plate 4 of annular boss 8 is an aluminium, and the material of rivet 5 is a stainless steel.
Please refer to Fig. 4, shown in Figure 4 is second kind of execution mode of the utility model lithium ion battery cover board assembly, and described lithium ion battery cover board assembly comprises cover plate 1, insulating part 2, lug extension stem 3, the pole plate 4 that has annular boss 8 and rivet 5.Described insulating part 2 is as a whole, is adjacent to cover plate 1, and body stretches out the through hole of cover plate 1 along the inwall of through hole, and the insulating part 2 that described riveting is gone in annular boss 8 squeezing through-holes of rivet seals through hole.
Described cover plate 1 is provided with through hole, also is provided with corresponding through hole on insulating part 2 and the lug extension stem 3.The annular boss 8 of described pole plate 4 passes lug extension stem 3, insulating part 2 and cover plate 1 successively, and promptly lug extension stem 3 is connected with the pole plate 4 that has annular boss 8.Then, rivet 5 rivetings are gone in the annular boss 8 of described pole plate 4.Being connected between described rivet 5 and the annular boss 8 adopted interference fit, and the annular boss 8 of described pole plate 4 makes described cover plate 1, insulating part, lug extension stem 3 and pole plate 4 be connected securely with interference fit between the rivet 5.And, the lug extension stem 3 formation conductive path that can also be connected with rivet 5.
In the present embodiment, the annular boss 8 of riveting with rivet 5 has certain deformation, can produce extruding to the insulating part 2 that is arranged in the through hole, and making combines closely between connector and the insulating part 2 forms sealing.There is a closed space 9 in pole plate 4 in annular boss 8 and between the rivet 5.In the present embodiment, the inwall axial section of described annular boss 8 can be for step-like or horn-like, and described material with pole plate 4 of annular boss 8 is an aluminium, and the material of rivet 5 is a stainless steel.
In first kind and second kind of execution mode, the material that has the pole plate 4 of annular boss 8 not only is confined to aluminium, and the material of rivet 5 also not only is confined to stainless steel, and other materials equally can reach effect of the present utility model.
Please refer to Fig. 5, Fig. 5 is a kind of execution mode of the utility model lithium ion battery, and described lithium ion battery comprises battery container 7, battery unit 6, electrolyte and battery cover board assembly.Described battery unit 6 and electrolyte are accommodated in the battery container.Described battery unit 6 is reeled by positive plate, barrier film and negative plate and is formed.Described battery cover board assembly has the structure described in first kind or the second kind of execution mode, and in order to illustrate, what present embodiment adopted is the battery cover board assembly structure of first kind of execution mode.Lug of drawing in the electric core of described lithium ion battery and 3 welding of the lug extension stem in the cover plate assembly, the cover plate 1 in the battery cover board assembly and welding of battery container 7 upper ends or assembling.
Claims (10)
1. lithium ion battery cover board assembly, comprise cover plate, insulating part, pole plate and rivet, described insulating part is between cover plate and pole plate, offer through hole on the described cover plate, it is characterized in that: described pole plate one side is provided with one and passes insulating part and be accommodated in annular boss in the through hole of described pole plate, described rivet is gone in the annular boss of pole plate by the interference fit riveting, and described cover plate is connected with described pole plate.
2. lithium ion battery cover board assembly according to claim 1, it is characterized in that: described annular boss can produce deformation, described insulating part is adjacent to cover plate, and stretches out the through hole of cover plate along the inwall of through hole, and the insulating part that described riveting is gone in the annular boss squeezing through-hole of rivet seals through hole.
3. lithium ion battery cover board assembly according to claim 1 is characterized in that: described pole plate forms a closed space in annular boss and between the rivet.
4. according to any described lithium ion battery cover board assembly of claim 1-3, it is characterized in that: be provided with the lug extension stem between described pole plate and the insulating part, offer the through hole that passes for annular boss, described lug extension stem is connected with pole plate that has annular boss or rivet.
5. lithium ion battery cover board assembly according to claim 4 is characterized in that: form conductive path between described lug extension stem and the pole plate.
6. lithium ion battery, comprise battery container and be contained in wherein battery unit and the battery cover board assembly of electrolyte and sealed cell housing, described cover plate assembly comprises cover plate, insulating part, pole plate and rivet, described insulating part is between cover plate and pole plate, described cover plate offers through hole, it is characterized in that: described pole plate one side is provided with one and passes insulating part and be accommodated in annular boss in the through hole of described pole plate, described rivet is gone in the annular boss of pole plate by the interference fit riveting, and described cover plate is connected with described pole plate.
7. lithium ion battery according to claim 6, it is characterized in that: described annular boss can produce deformation, described insulating part is adjacent to cover plate, and body stretches out the through hole of cover plate along the inwall of through hole, and the insulating part that described riveting is gone in the annular boss squeezing through-hole of rivet seals through hole.
8. lithium ion battery according to claim 6 is characterized in that: described pole plate forms a closed space in annular boss and between the rivet.
9. according to any described lithium ion battery of claim 6-8, it is characterized in that: be provided with the lug extension stem between described pole plate and the insulating part, described lug extension stem offers the through hole that passes for annular boss, and described lug extension stem is connected with pole plate that has annular boss or rivet.
10. lithium ion battery according to claim 9 is characterized in that: described lug extension stem connects a cell polar ear, forms conductive path between described cell polar ear, lug extension stem and the pole plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201183293U CN201017922Y (en) | 2007-01-26 | 2007-01-26 | Lithium ion battery cover board component and lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201183293U CN201017922Y (en) | 2007-01-26 | 2007-01-26 | Lithium ion battery cover board component and lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201017922Y true CN201017922Y (en) | 2008-02-06 |
Family
ID=39058421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201183293U Expired - Lifetime CN201017922Y (en) | 2007-01-26 | 2007-01-26 | Lithium ion battery cover board component and lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201017922Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101752611B (en) * | 2008-12-04 | 2012-11-28 | 深圳市比克电池有限公司 | Lithium battery |
| CN104681770A (en) * | 2013-11-26 | 2015-06-03 | 中国电子科技集团公司第十八研究所 | Preparation method of current collecting device for high-rate charge-discharge high-capacity battery |
| 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 |
-
2007
- 2007-01-26 CN CNU2007201183293U patent/CN201017922Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101752611B (en) * | 2008-12-04 | 2012-11-28 | 深圳市比克电池有限公司 | Lithium battery |
| CN104681770A (en) * | 2013-11-26 | 2015-06-03 | 中国电子科技集团公司第十八研究所 | Preparation method of current collecting device for high-rate charge-discharge high-capacity battery |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2833898Y (en) | Lithium ion battery cover plate component and battery | |
| CN102543487B (en) | Cover plate structure for super capacitor | |
| CN102347512B (en) | Large-capacity lithium ion battery | |
| JP5987320B2 (en) | Electricity storage element | |
| CN200997429Y (en) | Triple-electrode battery | |
| CN111952514B (en) | Battery with a battery cell | |
| CN204760442U (en) | Battery cover plate assembly and use battery of this subassembly | |
| CN201017922Y (en) | Lithium ion battery cover board component and lithium ion battery | |
| CN101645520A (en) | Battery assembly method | |
| CN102610782A (en) | Lid assembly for battery | |
| CN203826461U (en) | End-surface-welded cylindrical lithium battery | |
| CN103730623A (en) | End surface welding cylindrical lithium battery | |
| JP2010055961A (en) | Airtight battery and manufacturing method for airtight battery | |
| CN201413851Y (en) | Square battery | |
| CN101209507B (en) | Copper strip welding method and lithium cell adopting the copper polar ear | |
| CN217485674U (en) | Cylindrical battery | |
| CN2847540Y (en) | Button type cell | |
| CN201540909U (en) | Lithium battery cover board assembly and lithium battery using the assembly | |
| CN212907874U (en) | Battery without pole ear | |
| CN201017924Y (en) | Lithium battery using copper pole ear | |
| CN210379234U (en) | Button cell without welding tab | |
| KR20080057629A (en) | Electorde assembly and cylinder type secondary battery using the same | |
| CN203192882U (en) | 6V lithium battery | |
| CN200993980Y (en) | Reference electrode assembly | |
| CN207676957U (en) | A kind of high power battery cap assembly and high power battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080206 |
|
| EXPY | Termination of patent right or utility model |