CN206893699U - A kind of cylindrical end face weld battery - Google Patents
A kind of cylindrical end face weld battery Download PDFInfo
- Publication number
- CN206893699U CN206893699U CN201720631210.XU CN201720631210U CN206893699U CN 206893699 U CN206893699 U CN 206893699U CN 201720631210 U CN201720631210 U CN 201720631210U CN 206893699 U CN206893699 U CN 206893699U
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- China
- Prior art keywords
- negative pole
- pole
- positive pole
- piece
- positive
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- 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.)
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Classifications
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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
The utility model provides a kind of cylindrical end face weld battery, including positive plate, negative plate, positive pole conflux piece and negative pole confluxes piece；Positive plate includes positive pole Kong Bo areas；Negative plate includes negative pole Kong Bo areas；The positive pole piece that confluxes includes first surface and second surface, and the positive pole piece that confluxes offers through hole through first surface and second surface, and the edge of through hole extends to form positive pole projection to the direction away from second surface, and positive pole is raised on first surface；The negative pole piece that confluxes includes the 3rd surface and the 4th surface, and the negative pole piece that confluxes offers through hole through the 3rd surface and the 4th surface, and the edge of through hole extends to form negative pole projection to the direction away from the 4th surface, and negative pole is raised on the 3rd surface；Positive plate and negative plate winding, battery core is formed, positive pole Kong Bo areas and negative pole Kong Bo areas are located at the both ends of battery core respectively, and positive pole, which projects through, is ultrasonically welded at positive pole Kong Bo areas, and negative pole, which projects through, is ultrasonically welded at negative pole Kong Bo areas.
Description
【Technical field】
It the utility model is related to power battery technology field, more particularly to a kind of cylindrical end face weld battery.
【Background technology】
Existing end face weld battery is mostly laser welding, i.e., in positive plate and the negative plate coating of battery, reserves one
Point positive pole Kong Bo areas and negative pole Kong Bo areas, after winding, positive pole Kong Bo areas and negative pole Kong Bo areas are rubbed it is flat, then by positive pole conflux piece and
The negative pole piece that confluxes is respectively welded to the positive pole Kong Bo areas and negative pole Kong Bo areas, to conduct electric current.However, due to laser output work
Rate is unstable, causes punch through that positive pole confluxes piece and negative pole confluxes piece to the positive plate and negative plate of battery, causes battery short circuit, and
And Laser Welding requires that welding material is non-reflective, weld must be brought into close contact, and solder side must be fine and close, adds cost, qualified
Rate is relatively low, is difficult to realize automatic mass.
In consideration of it, real be necessary to provide a kind of new cylindrical end face weld battery to overcome disadvantages described above.
【Utility model content】
The purpose of this utility model be to provide the positive plate of battery and negative plate before and after a kind of welding be not damaged, weld zone
Domain is uniform, bonding area is big, high yield rate and production efficiency are high, the cylindrical end face weld battery of circulation excellent performance.
To achieve these goals, the utility model provides a kind of cylindrical end face weld battery, including positive plate, negative pole
Piece, positive pole conflux piece and negative pole confluxes piece；The positive plate includes positive pole Kong Bo areas；The negative plate includes negative pole Kong Bo areas；
The positive pole piece that confluxes includes first surface and the second surface opposite with the first surface, and the positive pole piece that confluxes offers
Through the first surface and the through hole of second surface, the edge of the through hole extends shape to the direction away from the second surface
Raised into positive pole, the positive pole is raised on the first surface；The negative pole conflux piece include the 3rd surface and with it is described
4th surface of the 3rd surface opposite, the negative pole piece that confluxes offer through hole through the 3rd surface and the 4th surface,
The edge of the through hole extends to form negative pole projection to the direction away from the 4th surface, and the negative pole is raised positioned at described the
On three surfaces；Positive plate and the negative plate winding, form battery core, the positive pole Kong Bo areas and negative pole Kong Bo areas difference position
In the both ends of the battery core, the positive pole, which projects through, is ultrasonically welded at the positive pole Kong Bo areas, and the negative pole projects through
It is ultrasonically welded at the negative pole Kong Bo areas.
In a preferred embodiment, the positive pole is raised for cylinder, the raised quantity of the positive pole be it is multiple,
It is even to be distributed on the first surface.
In a preferred embodiment, the negative pole is raised for cylinder, the raised quantity of the negative pole be it is multiple,
It is even to be distributed on the 3rd surface.
In a preferred embodiment, the negative pole conflux piece the 4th surface be provided with cylinder boss, it is described
Boss is located at the center on the 4th surface.
In a preferred embodiment, height of the boss apart from the 4th surface is 0.5-1.0mm.
In a preferred embodiment, the positive pole conflux the second surface of piece edge also bend draw a lug,
The lug is rectangular-shape, and the width of the lug is 5-10mm, length 15-20mm, thickness 0.2-0.6mm.
Compared to prior art, cylindrical end face weld battery provided by the utility model, the positive pole projects through ultrasound
Wave soldering is connected to the positive pole Kong Bo areas, and the negative pole, which projects through, is ultrasonically welded at the negative pole Kong Bo areas, and welding region is equal
Even, bonding area is big, high yield rate, and the positive plate of battery and negative plate are not damaged before and after welding, and production efficiency is high and circulates
Excellent performance.
【Brief description of the drawings】
Fig. 1 is the sectional view of cylindrical end face weld battery provided by the utility model；
Fig. 2 be cylindrical end face weld battery provided by the utility model positive pole conflux piece an angle structural representation
Figure；
Fig. 3 be cylindrical end face weld battery provided by the utility model positive pole conflux piece another angle structural representation
Figure；
Fig. 4 be cylindrical end face weld battery provided by the utility model negative pole conflux piece an angle structural representation
Figure；
Fig. 5 be cylindrical end face weld battery provided by the utility model negative pole conflux piece another angle structural representation
Figure.
【Embodiment】
In order that the purpose of this utility model, technical scheme and advantageous effects become apparent from understanding, below in conjunction with attached
Figure and embodiment, the utility model is further elaborated.It should be appreciated that described in this specification
Embodiment is not intended to limit the utility model just for the sake of explaining the utility model.
Referring to Fig. 1, the utility model provides a kind of cylindrical end face weld battery 100, including positive plate 10, negative plate
20th, positive pole confluxes piece 30 and negative pole confluxes piece 40.
The positive plate 10 includes positive pole Kong Bo areas 11, and the positive plate 10 is the aluminium foil for being coated with positive electrode active materials,
The 11 uncoated positive electrode active materials of positive pole Kong Bo areas.
The negative plate 20 includes negative pole Kong Bo areas 21, and the negative plate 20 is the copper foil for being coated with negative active core-shell material,
The 21 uncoated negative active core-shell material of negative pole Kong Bo areas.
Also referring to Fig. 2 and Fig. 3, the positive pole piece 30 that confluxes is round pie, including first surface 301 and with it is described
The opposite second surface 302 of first surface 301, the positive pole piece 30 that confluxes are offered through the first surface 301 and second
The through hole 303 on surface 302, the edge of the through hole 303 extend to form positive pole projection to the direction away from the second surface 302
31, the positive pole projection 31 is on the first surface 301；The positive pole projection 31 is cylindrical, the positive pole projection 31
Quantity to be multiple, be uniformly distributed on the first surface 301；A diameter of 1.0-3.0mm of the positive pole projection 31, it is described
Positive pole projection 31 is 0.2-1.0mm beyond the height of the first surface 301.The material of the piece 30 specifically, positive pole confluxes
For aluminium.
Also referring to Fig. 4 and Fig. 5, the negative pole piece 40 that confluxes is round pie, including the 3rd surface 401 and with it is described
The 4th opposite surface 402 of 3rd surface 401, the negative pole piece 40 that confluxes are offered through the 3rd surface 401 and the 4th
The through hole 403 on surface 402, the edge of the through hole 403 extend to form negative pole projection to the direction away from the 4th surface 402
41, the negative pole projection 41 is on the 3rd surface 401；The negative pole projection 41 is cylindrical, the negative pole projection 41
Quantity to be multiple, be uniformly distributed on the 3rd surface 401；A diameter of 1.0-3.0mm of the negative pole projection 41, it is described
The height that negative pole is raised above the 3rd surface 401 is 0.2-1.0mm.Specifically, the negative pole confluxes, the material of piece 40 is
Copper nickel plating.
Referring to Fig. 1, after the positive plate 10 and negative plate 20 winding, form battery core (not shown), to it is described just
Ji Kongbo areas 11 and negative pole Kong Bo areas 21 are rubbed flat in advance, and the positive pole projection 31 is by being ultrasonically welded at the positive pole sky paper tinsel
Area 11, the negative pole projection 41 is by being ultrasonically welded at the negative pole Kong Bo areas 21, and conflux piece 30 and negative pole to the positive pole
The piece 40 that confluxes carry out it is secondary rub it is flat.Specifically, after the positive plate 10 and negative plate 20 are wound, the positive pole Kong Bo areas 11 and institute
State the both ends that negative pole Kong Bo areas 21 are located at the battery core respectively；Specifically, the positive plate 10 and negative plate 20 partly overlap, weight
It is the main part 120 of battery core after folded section roll.Pre- rub flat thickness specifically, described and account for the positive pole Kong Bo areas 11
Or the 40%-60% in negative pole Kong Bo areas 21, it is described secondary to rub flat thickness and account for the positive pole Kong Bo areas 11 or negative pole Kong Bo areas 21
5%-20%.
Referring to Fig. 4 and Fig. 5, cylindrical end face weld battery 100 provided by the utility model, in addition to one end open
Cylindrical steel (not shown), the box hat includes bottom surface, and the battery core is contained in the box hat；The negative pole confluxes piece
40 the 4th surface 402 is provided with the boss 42 of cylinder, and the boss 42 is located at the center on the 4th surface 402, described
Boss 42 is resisted against the bottom surface and the boss 42 is by being ultrasonically welded at the bottom surface.Specifically, the boss distance
The height on the 4th surface is 0.5-1.0mm.
Referring to Fig. 2 and Fig. 3, cylindrical end face weld battery 100 provided by the utility model, in addition to block (figure
Do not show), the block is arranged at one end of the box hat opening, the positive pole conflux piece 30 second surface 302 edge also
A lug 32 is drawn in bending, and the lug 32 is by being ultrasonically welded at the block.Specifically, the width of the lug 32 is
5-10mm, length 15-20mm, thickness 0.2-0.6mm.
In other embodiments, can with aluminum hull come instead of the box hat in the utility model, the positive pole conflux piece and
The negative pole piece that confluxes possesses corresponding structure, i.e., in aluminum hull end face weld battery, the positive pole piece that confluxes is provided with boss and boss welds
In on aluminum hull, negative pole confluxes piece including lug and tab welding is in block.
Cylindrical end face weld battery 100 provided by the utility model, the positive pole projection 31 is by being ultrasonically welded at
Positive pole Kong Bo areas 11 are stated, for the negative pole projection 41 by being ultrasonically welded at the negative pole Kong Bo areas 21, welding region is uniform,
Bonding area is big, high yield rate, and the positive plate 10 of battery and negative plate 20 are not damaged before and after welding, and production efficiency is high and circulates
Excellent performance.
The utility model is not restricted to described in specification and embodiment, therefore for the personnel of familiar field
For additional advantage and modification is easily achieved, therefore in the universal limited without departing substantially from claim and equivalency range
Spirit and scope in the case of, the utility model is not limited to specific details, representational equipment and shown here as with retouching
The examples shown stated.
Claims (6)
- A kind of 1. cylindrical end face weld battery, it is characterised in that：Conflux piece including positive plate, negative plate, positive pole and negative pole confluxes Piece；The positive plate includes positive pole Kong Bo areas；The negative plate includes negative pole Kong Bo areas；The positive pole piece that confluxes includes the first table Face and the second surface opposite with the first surface, the positive pole piece that confluxes are offered through the first surface and the second table The through hole in face, the edge of the through hole extend to form positive pole projection to the direction away from the second surface, and the positive pole is raised On the first surface；The negative pole piece that confluxes includes the 3rd surface and the 4th surface with the 3rd surface opposite, The negative pole piece that confluxes offers through hole through the 3rd surface and the 4th surface, and the edge of the through hole is to away from described The direction on the 4th surface extends to form negative pole projection, and the negative pole is raised on the 3rd surface；The positive plate and negative Pole piece coiling, forms battery core, and the positive pole Kong Bo areas and the negative pole Kong Bo areas are located at the both ends of the battery core respectively, it is described just Pole, which projects through, is ultrasonically welded at the positive pole Kong Bo areas, and the negative pole, which projects through, is ultrasonically welded at the negative pole sky paper tinsel Area.
- 2. cylindrical end face weld battery as claimed in claim 1, it is characterised in that：The positive pole is raised to be cylindrical, described The raised quantity of positive pole is multiple, is uniformly distributed on the first surface.
- 3. cylindrical end face weld battery as claimed in claim 2, it is characterised in that：The negative pole is raised to be cylindrical, described The raised quantity of negative pole is multiple, is uniformly distributed on the 3rd surface.
- 4. cylindrical end face weld battery as claimed in claim 3, it is characterised in that：Conflux the 4th surface of piece of the negative pole is set The boss of cylinder is equipped with, the boss is located at the center on the 4th surface.
- 5. cylindrical end face weld battery as claimed in claim 4, it is characterised in that：The boss is apart from the 4th surface Highly it is 0.5-1.0mm.
- 6. cylindrical end face weld battery as claimed in claim 5, it is characterised in that：The positive pole confluxes the second surface of piece Edge, which is also bent, draws a lug, and the lug is rectangular-shape, and the width of the lug is 5-10mm, length 15-20mm, Thickness is 0.2-0.6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720631210.XU CN206893699U (en) | 2017-06-01 | 2017-06-01 | A kind of cylindrical end face weld battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720631210.XU CN206893699U (en) | 2017-06-01 | 2017-06-01 | A kind of cylindrical end face weld battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206893699U true CN206893699U (en) | 2018-01-16 |
Family
ID=61321175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720631210.XU Expired - Fee Related CN206893699U (en) | 2017-06-01 | 2017-06-01 | A kind of cylindrical end face weld battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206893699U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112201769A (en) * | 2020-09-25 | 2021-01-08 | 宁德新能源科技有限公司 | Electrochemical device and electronic device |
| WO2023097627A1 (en) * | 2021-12-02 | 2023-06-08 | Techtronic Cordless Gp | Enhanced electrolyte infiltration in a battery cell |
-
2017
- 2017-06-01 CN CN201720631210.XU patent/CN206893699U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112201769A (en) * | 2020-09-25 | 2021-01-08 | 宁德新能源科技有限公司 | Electrochemical device and electronic device |
| WO2023097627A1 (en) * | 2021-12-02 | 2023-06-08 | Techtronic Cordless Gp | Enhanced electrolyte infiltration in a battery cell |
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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: 20180116 Termination date: 20190601 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |