CN206490101U - A kind of secondary cell - Google Patents
A kind of secondary cell Download PDFInfo
- Publication number
- CN206490101U CN206490101U CN201621405190.6U CN201621405190U CN206490101U CN 206490101 U CN206490101 U CN 206490101U CN 201621405190 U CN201621405190 U CN 201621405190U CN 206490101 U CN206490101 U CN 206490101U
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- China
- Prior art keywords
- electrode
- secondary cell
- felt pad
- plate
- negative
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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
Abstract
A kind of secondary cell, including top cover (1), lower casing (2), battery core (3), wherein top cover includes anode electrode (4), negative electrode (5), anode plate (6), negative plates (7), cover plate (10), it is characterised in that anode electrode (4), negative electrode (5) and cover plate (10) riveting.It has the following advantages that：Small volume, lightweight, electrode and pole plate contact area are big, be easy to current flowing reduces transmission loss.
Description
Technical field
The utility model is related to a kind of secondary cell.
Background technology
Secondary cell is rechargeable battery, is currently widely used in various equipment, for example electric automobile, it is electronic from
Driving, cell phone, notebook computer, tablet personal computer, camera and video camera.
The opening of electrode assemblie through housing can be by being inserted into the housing and being covered using cap assemblies by secondary cell
It is open and is formed, positive electrode, negative electrode and dividing plate is wound as the form of film in electrode assemblie.Collector plate is formed on electricity
The two ends of pole component and the terminal unit for being electrically connected to cap assemblies.Therefore, if outside terminal is connected to terminal unit,
The electric current produced in electrode assemblie can be provided to outside terminal via collector plate and terminal unit.
Current electrode assemblie is typically installed on cap assemblies by the way of threaded connection.Such connected mode causes electricity
Pond body product is big, weight weight, and electrode and the small transmission loss of pole plate contact area are big.
Utility model content
There is provided a kind of same reserve of electricity but small volume, lightweight in view of the shortcomings of the prior art for the utility model
Secondary cell.
The technical scheme that the utility model is used is as follows：
There is provided a kind of secondary cell, including top cover, lower casing, battery core, wherein top cover includes anode electrode, negative electrode, just
Pole pole plate, negative plates, cover plate, anode electrode, negative electrode and cover plate riveting.
Further, it is characterised in that the anode plate (6) or negative plates (7) include both sides board member and
Middle joint (14), the surface between board member and joint, which is formed with, to be had in the middle of guide groove, joint for leading to that electrode is passed through
Hole.
Further, it is characterised in that the corner that the board member is connected with joint, which is processed, to form arc-shaped transition.
Further, it is characterised in that top cover includes upper felt pad or lower felt pad.
Further, it is characterised in that anode electrode and/or negative electrode are T-type structure, and its bottom surface has above blind hole and had
Blind hole.
Further, it is characterised in that blind hole bottom surface is 130 degree to 160 degree of the conical surface, or the ball highly within 2mm
Face.
Further, it is characterised in that the roughness of the electrode top surface is more than 1.6.
Further, it is characterised in that the cover plate has nonplanar position limiting structure at the electrode opening.
Further, it is characterised in that the position limiting structure is to have and lid above boss or depression, the lower felt pad
There is the nosing coordinated with joint below depression or boss that plate convex platform or depression coordinate, lower felt pad.
Further, it is characterised in that the upper felt pad can be inserted between the electrode opening of electrode and cover plate, realize
The insulation of cover plate and electrode.
Further, the anode plate or negative plates, which have, the through hole passed through for electrode in the middle of joint, joint.
The utility model has substantive distinguishing features and progress compared with the prior art, specifically, has the advantage that：
1st, because the electrode volume of riveted structure secondary cell is smaller, so secondary cell volume can be reduced on the whole, make
The volume capacity of secondary cell is than reducing 10%.
2nd, because the electrode weight of riveted structure secondary cell is light, so the weight of secondary cell can be mitigated on the whole, make
The weight of portable type electronic product integrally mitigates.
3rd, because the electrode and pole plate contact area of riveted structure secondary cell are big, therefore it is easy to current flowing, reduces and pass
Defeated loss.
4th, use welding manner connected in series or in parallel is easier to large-scale production between secondary cell, when reducing work
Between.
5th, use welding manner connected in series or in parallel is more reliable in the presence of a harsh environment between secondary cell, such as vibrates,
Thermal shock etc..
Brief description of the drawings
Each exemplary embodiment is described in detail by referring to accompanying drawing, above and other feature and advantage are common for this area
The beautiful speech of technical staff will become more apparent, in the accompanying drawings:
Fig. 1 exemplifies the side view of the secondary cell according to embodiment.
Fig. 2 exemplifies the top view of the secondary cell according to embodiment.
Fig. 3 exemplifies the cap assemblies side view according to the secondary cell of embodiment.
Fig. 4 exemplifies the top cover and lug installation diagram according to the secondary cell of embodiment.
Fig. 5 exemplifies the electrode side view according to the secondary cell of embodiment.
Fig. 6 exemplifies the electrode top view according to the secondary cell of embodiment.
Fig. 7 exemplifies the cap assemblies side view for not installing electrode of the secondary cell according to embodiment.
Fig. 8 exemplifies the lug of the secondary cell according to embodiment.
Fig. 9 exemplifies the lower felt pad upward view of the secondary cell according to embodiment.
Figure 10 exemplifies the lower felt pad side view of the secondary cell according to embodiment.
Figure 11 exemplifies the lower felt pad top view of the secondary cell according to embodiment.
Figure 12 exemplifies the upper felt pad side view of the secondary cell according to embodiment.
Figure 13 exemplifies the upper felt pad top view of the secondary cell according to embodiment
Embodiment
In order that the technical solution of the utility model and advantage are clearer, below in conjunction with the accompanying drawings with specific embodiment to this
Utility model is described in detail.
Secondary cell of the present utility model as shown in Figure 1 and Figure 2, including rivets top cover 1, lower casing 2, battery core 3.Rivet top cover 1
It is upper that there is relief valve 11 and liquid injection port 12.Assemble method is：To rivet first top cover 1 positive and negative electrode pole plate and battery core 3 just,
Negative pole is respectively welded, and lower casing 2 is inserted into after the completion of welding, finally welds the edge of top cover 1 and the edge of lower casing 2.
As shown in Figure 3, Figure 4, riveting top cover 1 include anode electrode 4, negative electrode 5, anode plate 6, negative plates 7, on
Felt pad 8, lower felt pad 9, battery cap 10 these elements.
Electrode structure is as shown in Figure 5, Figure 6.Electrode is T-type structure, and there is blind hole bottom surface, and the angle of blind hole bottom surface is 130 degree
To 160 degree of the conical surface, riveting is facilitated to be molded.Electrode bottom surface is a circular flat, is welded by its surface and pole plate, completes different
The connection of battery.To ensure after welding pole plate, controlling transmission is lost, it is necessary to ensure that the roughness of top surface reaches 1.6.
Battery cap 10 is as shown in fig. 7, there is relief valve 11, when inside battery pressure exceedes certain value, and gas is from pressure release
Valve is discharged.Battery cap 10 also has liquid injection hole 12, and convenient injection electrolyte after the completion of fluid injection, welds fluid injection bolt seal mouthful.In electrode
At opening, there is the square boss 13 of punching press, the position of lower felt pad 9 is limited with this.Battery cap 10 is one time punching molded.
Negative or positive electrode pole plate 67 is as shown in figure 8, joint 14 is square, and centre punching makes electrode 45 be passed through from hole,
Last riveting connection.Board member is drawn on the both sides of square knuckle 14, is welded after bending with battery core 3.To ensure to be easy to bending, square
Surface between joint and board member is formed with guide groove.Preferably, the corner processing shape that the board member is connected with joint
Camber transition, preferably circular arc, the 1/3-1/2 of a diameter of board member width.
Lower felt pad 9 as shown in figs. 9-11, for completely cutting off battery cap 10 and pole plate 6,7.The upper part of lower felt pad is convex
Platform coordinates the boss of battery cap 10, plays position-limiting action.There is nosing its underpart, convenient square with negative or positive electrode pole plate 6,7
Joint is connected, and makes its spacing.
Upper felt pad 8 as illustrated by figs. 12-13, for completely cutting off battery cap 10 and electrode 4,5.The boss of upper felt pad 8 is inserted
Enter the electrode hole of battery cap 10, it is ensured that both insulate.
The material of upper felt pad 8 and lower felt pad 9 is engineering plastics.Need good corrosion resistance, superior thermal deformation performance,
Higher force performance.Can from polypropylene, PVC-U and its filling reinforced plastics, fluoroplastics, filled polytetrafluoroethylene,
Chlorinated polyether, polyphenylene sulfide etc..
When riveting top cover, to ensure that battery air tightness well needs to use riveting press equipment, a riveting shaping.This its
In, it is necessary to calculate the size of its pressure, make corresponding frock and die head.
Riveting top cover frock, to avoid electrode and frock adhesion, preferably uses stainless steel material, such as in riveting
SUS304.The profile by riveting top cover 1 is needed to be punched and slotted in frock.Fixture Design will on the basis of positive and negative electrode,
Therefore for holes position and size, it is necessary to set tolerance.For the tolerance of hole site, its size need to meet GB/T1804,
The requirement of f tolerance levels.Tolerance for hole size is, it is necessary to being inserted into anode electrode 4 or negative electrode 5, meet H7/h6
Coordinate and require.
Riveting die head stamping surface needs to make the prominent face tangent with electrode taper hole, and its shape can be taper or spherical,
Height is within 2mm.
Riveting top cover 1 needs first to insert frock before riveting.Anode electrode 4, negative electrode 5 are respectively put into riveting top
In two circular holes of lid frock, then upper felt pad 8 is inserted respectively.Then battery cap 10 is inserted to insert positive and negative the two of frock
Pole, and put battery cap 10 by frock channel profiles.Then lower felt pad 9 is inserted respectively to two electrodes, finally correspond to positive and negative two
Anode plate 6, negative plates 7 are inserted in pole respectively.Riveting press equipment can be just put into after putting as above and carries out riveting.
The present invention riveted structure, it is highly lower than bolt arrangement of the prior art, integrally saved device volume and
Weight, makes the volume capacity of secondary cell than reducing 10%.
In addition, using the riveted structure of the present invention, when being connected with lateral electrode plate, contact area is bigger, it is easy to electric current stream
It is logical, transmission loss is reduced, and more stablized than threaded connection using the connected mode of welding, in vibration, thermal shock condition
Under be difficult to release, better reliability.
The a series of tool described in detail only for feasibility embodiment of the present utility model of those listed above
Body illustrates that they are simultaneously not used to limit protection domain of the present utility model, all to be made without departing from the utility model skill spirit
Equivalent implementations or change should be included within protection domain of the present utility model.
Claims (10)
1. a kind of secondary cell, including top cover (1), lower casing (2), battery core (3), wherein top cover include anode electrode (4), negative electricity
Pole (5), anode plate (6), negative plates (7), cover plate (10), it is characterised in that anode electrode (4), negative electrode (5) and lid
Plate (10) riveting.
2. secondary cell as claimed in claim 1, it is characterised in that the anode plate (6) or negative plates (7) include two
The board member of side and the joint (14) of centre, the surface between board member and joint is formed with useful in the middle of guide groove, joint
The through hole passed through in electrode.
3. secondary cell according to claim 2, it is characterised in that：The corner processing that the board member is connected with joint
Form arc-shaped transition.
4. secondary cell as claimed in claim 1, it is characterised in that top cover (1) also includes upper felt pad (8) and/or lower exhausted
Edge pad (9).
5. secondary cell as claimed in claim 1, it is characterised in that anode electrode (4) and/or negative electrode (5) are T junction
There is blind hole structure, its bottom surface.
6. secondary cell as claimed in claim 5, it is characterised in that blind hole bottom surface is 130 degree to 160 degree of the conical surface, or height
The sphere spent within 2mm.
7. the secondary cell as described in claim 5 or 6, it is characterised in that the roughness of the electrode top surface is more than 1.6.
8. secondary cell as claimed in claim 4, it is characterised in that the cover plate (10) has non-at the electrode opening
The position limiting structure of plane.
9. secondary cell as claimed in claim 8, it is characterised in that the position limiting structure is boss or is recessed (13), described
Having above lower felt pad (9) below the depression coordinated with cover plate convex platform or depression or boss, lower felt pad (9) has with connecing
The nosing that head (14) coordinates.
10. secondary cell as claimed in claim 8, it is characterised in that the upper felt pad (8) can be inserted into electrode and cover plate
Between electrode opening, the insulation of cover plate and electrode is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621405190.6U CN206490101U (en) | 2016-12-21 | 2016-12-21 | A kind of secondary cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621405190.6U CN206490101U (en) | 2016-12-21 | 2016-12-21 | A kind of secondary cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206490101U true CN206490101U (en) | 2017-09-12 |
Family
ID=59770068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621405190.6U Active CN206490101U (en) | 2016-12-21 | 2016-12-21 | A kind of secondary cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206490101U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109671878A (en) * | 2017-10-17 | 2019-04-23 | 宁德时代新能源科技股份有限公司 | Battery top cap subassembly and secondary cell |
-
2016
- 2016-12-21 CN CN201621405190.6U patent/CN206490101U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109671878A (en) * | 2017-10-17 | 2019-04-23 | 宁德时代新能源科技股份有限公司 | Battery top cap subassembly and secondary cell |
| CN109671878B (en) * | 2017-10-17 | 2021-09-21 | 宁德时代新能源科技股份有限公司 | Battery top cap subassembly and secondary cell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 100015 No. 1 East Jiuxianqiao Road, Beijing, Chaoyang District Patentee after: North China Science and technology group Limited by Share Ltd. Address before: 100015 the two floor of the South Gate of M5 Building No. 1, No. 1, Jiuxianqiao East Road, Chaoyang District, Beijing Patentee before: BEIJING SEVENSTAR ELECTRONIC Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171226 Address after: Room 511, No. 511, No. 8, Wenchang Avenue, Beijing Beijing economic and Technological Development Zone, 100015 Patentee after: BEIJING NAURA NEW ENERGY LITHIUM BATTERY EQUIPMENT TECHNOLOGY CO.,LTD. Address before: 100015 No. 1 East Jiuxianqiao Road, Beijing, Chaoyang District Patentee before: North China Science and technology group Limited by Share Ltd. |