CN204966575U - Lithium cell edge weld utmost point ear piece that converges - Google Patents
Lithium cell edge weld utmost point ear piece that converges Download PDFInfo
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- CN204966575U CN204966575U CN201520431838.6U CN201520431838U CN204966575U CN 204966575 U CN204966575 U CN 204966575U CN 201520431838 U CN201520431838 U CN 201520431838U CN 204966575 U CN204966575 U CN 204966575U
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- centre bore
- welding
- converges
- confluxes
- sheet
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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 discloses a be applied to cylindrical lithium ion battery's accessory, a lithium cell edge weld utmost point ear piece that converges is applied to to specific saying so. It includes flow guide disc, and flow guide disc opens at the center has the centre bore, and the three direction distribution of centre bore has a three circular shape drain hole, has three fan -shaped welding recess around the drain hole, and the welding recess is sunken to be most region of flow guide disc and the separation of electric core, improves industry efficiency down, and the effect of welding recessed edge and have the strengthening rib improves the intensity of the piece that converges, and there are two curved folding grooves in electrically conductive utmost point eardrum portion, improves and folds the security. The utility model has the advantages of: the utility model discloses combine production practices, it is many to provide a welding position, the welding wide range, and the welding strength height, production efficiency is high is used for the piece that converges of edge weld, and the internal resistance of the battery of very big reduction has improved the rate properties of battery.
Description
[technical field]
The present invention relates to cell art, particularly relate to a kind of lithium battery end face weld lug and to conflux sheet.
[background technology]
Along with global energy day is becoming tight, biological environment goes from bad to worse, and the development & application problem about new-energy automobile has become the focus that various countries' auto industry is tried to explore.The new forms of energy subsidy policy put into effect along with China and the continuous upgrading of dynamics, domestic electric automobile develop rapidly, but still there is flying power difference, the situations such as the charging interval is long, and large multiplying power discharging cycle life is short.Perplex electric automobile large-scale application at present then mainly: fast charge and discharge cycle life is short, during fast charging and discharging, battery temperature rises the safety problem caused soon.End face weld technology, as one of effective ways addressed these problems, receives increasing concern.But, for the lug of end face weld as the key point of this technology, the problems such as there is this not prison welding, battery performance is not stable in performance always, and production efficiency is low.
The existing lug being applied to end face weld, the cross design of many employings, this cross design.This cross design is set in center owing to welding initial point more, and therefore can not effectively work continuously, a lug is divided into 4 operations, causes production efficiency to decline.In addition, battery core is divided into 4 quadrants by this cross ear, distant between two solder joints that the center of circle is enclosed, the close together between two solder joints at center, this will cause lug in the process of confluxing, the electric current of each solder joint process is not equally large, the large solder joint that confluxes agree to produce that transient current is excessive causes sealing-off, or for a long time by big current, causes the durability degree of solder joint inadequate, namely the useful life of solder joint is different, affects the cycle performance of battery.
[summary of the invention]
The present invention is directed to the problems referred to above, provide a kind of lithium battery end face weld lug to conflux chip architecture, this structure can greatly reduce the internal resistance of battery, improves the high rate performance of battery.Its technical scheme adopted is as follows:
A kind of lithium battery end face weld lug confluxes sheet, it is characterized in that: comprise centre bore (1), welding groove (2), delivery hole (3), flow guiding disc (4), folded slot (5), conduction lug (6).Described centre bore (1) is placed in flow guiding disc (4) center, centre bore (1) both sides and top distribute respectively and weld groove (2), described welding groove (2) and flow guiding disc (4) are non-waits face, and described delivery hole (3) and the lug (6) that conducts electricity are distributed in around the sheet that confluxes.
Preferably, described welding groove (2) is covering of the fan, its outer arc and centre bore tangent, inner homogeneous distribution pad.
Preferably, described delivery hole (3) is circular, and the center of circle connects to form isosceles triangle between two and right angle fixed point overlaps with centre bore (1) center of circle.
Preferably, described folded slot is semicircular arc.
Beneficial effect of the present invention:
The invention provides a kind of brand-new lithium ion to conflux sheet, effective reduction internal resistance of cell more than 30%, greatly improves the high rate performance of battery, and large circulation performance is multiplied, and reduce difficulty of processing according to production actual demand, improve conforming product rate.
[accompanying drawing explanation]
Fig. 1 confluxes sheet vertical view
Fig. 2 is the sheet end view that confluxes
Fig. 3 is the sheet upward view that confluxes
[embodiment]
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further:
Fig. 1 is that lithium battery end face weld lug confluxes sheet, and it comprises centre bore (1), welding groove (2), delivery hole (3), flow guiding disc (4), folded slot (5), conduction lug (6).Centre bore (1) is outputed at flow guiding disc (4) center, and output three circular delivery holes (3) around, the center of circle of delivery hole (3) forms isosceles triangle and right angle fixed point overlaps with centre bore (1) center of circle, delivery hole (3) distribution three covering of the fans welding groove (2), welding groove (2) outer arc and the tangent and pad that covering of the fan is evenly distributed of centre bore (1), welding groove (2) and the face such as flow guiding disc (4) is non-, flow guiding disc (4) is as a whole and process the folded slot of semicircular arc in junction with conduction lug (6).
The present invention is directed to cylindrical battery workflow as follows: will weld groove (2) bottom and fit tightly with battery core pole piece, use will conflux sheet and battery core of laser welding to weld together, welding point uniform is distributed in welds in groove (2).Central tube is inserted by centre bore (1).Conduction lug (6) welds together with block after folded slot (5) is folding, electrolyte infiltrates battery core pole piece fast by delivery hole (3), the electric current that battery core reaction produces is transmitted on flow guiding disc (4) by the solder joint of welding groove (2), block is passed to, output current again by conduction lug (6).
Claims (4)
1. lithium battery end face weld lug confluxes a sheet, it is characterized in that: comprise centre bore (1), welding groove (2), delivery hole (3), flow guiding disc (4), folded slot (5), conduction lug (6).Described centre bore (1) is placed in flow guiding disc (4) center, centre bore (1) both sides and top distribute respectively and weld groove (2), described welding groove (2) and flow guiding disc (4) are non-waits face, and described delivery hole (3) and the lug (6) that conducts electricity are distributed in around the sheet that confluxes.
2. lithium battery end face weld lug according to claim 1 confluxes sheet, it is characterized in that: described welding groove (2) is covering of the fan, its outer arc and centre bore tangent, inner homogeneous distribution pad.
3. lithium battery end face weld lug according to claim 1 confluxes sheet, it is characterized in that: described delivery hole (3) is for circular, and the center of circle connects to form isosceles triangle between two and right angle fixed point overlaps with centre bore (1) center of circle.
4. lithium battery end face weld lug according to claim 1 confluxes sheet, it is characterized in that: described folded slot (5) is semicircular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520431838.6U CN204966575U (en) | 2015-06-17 | 2015-06-17 | Lithium cell edge weld utmost point ear piece that converges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520431838.6U CN204966575U (en) | 2015-06-17 | 2015-06-17 | Lithium cell edge weld utmost point ear piece that converges |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204966575U true CN204966575U (en) | 2016-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520431838.6U Active CN204966575U (en) | 2015-06-17 | 2015-06-17 | Lithium cell edge weld utmost point ear piece that converges |
Country Status (1)
| Country | Link |
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| CN (1) | CN204966575U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106410102A (en) * | 2016-11-09 | 2017-02-15 | 浙江兴海能源科技股份有限公司 | Circular anode bus disc with four semicircular tabs and connecting method of circular anode bus disc with four-segment semicircular tabs |
| CN109360932A (en) * | 2018-11-19 | 2019-02-19 | 国轩新能源（苏州）有限公司 | A kind of current collecting plates for the full tab lithium ion battery of cylinder |
| CN111584814A (en) * | 2020-04-07 | 2020-08-25 | 天津空间电源科技有限公司 | Battery eccentric welding current collection mechanism and battery adopting same |
| CN113363634A (en) * | 2019-05-15 | 2021-09-07 | 广东微电新能源有限公司 | Button-type battery and method for manufacturing the same |
| CN114976293A (en) * | 2022-05-31 | 2022-08-30 | 重庆宏辰科扬能源有限责任公司 | Cylindrical high-voltage nickel-metal hydride battery |
-
2015
- 2015-06-17 CN CN201520431838.6U patent/CN204966575U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106410102A (en) * | 2016-11-09 | 2017-02-15 | 浙江兴海能源科技股份有限公司 | Circular anode bus disc with four semicircular tabs and connecting method of circular anode bus disc with four-segment semicircular tabs |
| CN109360932A (en) * | 2018-11-19 | 2019-02-19 | 国轩新能源（苏州）有限公司 | A kind of current collecting plates for the full tab lithium ion battery of cylinder |
| CN113363634A (en) * | 2019-05-15 | 2021-09-07 | 广东微电新能源有限公司 | Button-type battery and method for manufacturing the same |
| CN111584814A (en) * | 2020-04-07 | 2020-08-25 | 天津空间电源科技有限公司 | Battery eccentric welding current collection mechanism and battery adopting same |
| CN114976293A (en) * | 2022-05-31 | 2022-08-30 | 重庆宏辰科扬能源有限责任公司 | Cylindrical high-voltage nickel-metal hydride battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20180428 Granted publication date: 20160113 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20210428 Granted publication date: 20160113 |
|
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20210428 Granted publication date: 20160113 |