CN105449149B - Electrode tab connection structure in a kind of lithium battery group - Google Patents
Electrode tab connection structure in a kind of lithium battery group Download PDFInfo
- Publication number
- CN105449149B CN105449149B CN201511016193.0A CN201511016193A CN105449149B CN 105449149 B CN105449149 B CN 105449149B CN 201511016193 A CN201511016193 A CN 201511016193A CN 105449149 B CN105449149 B CN 105449149B
- Authority
- CN
- China
- Prior art keywords
- connection sheet
- connection
- lithium battery
- battery group
- pole piece
- 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.)
- Active
Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 22
- 210000005069 ears Anatomy 0.000 claims abstract description 3
- 238000003466 welding Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 238000010276 construction Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 208000002925 dental caries Diseases 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Secondary Cells (AREA)
Abstract
The present invention relates to the battery pack production technical field in new energy industry, refer in particular to electrode tab connection structure in a kind of lithium battery group, including lithium battery group body, the battery body of lithium battery group body is provided with two pole piece ears, first connection sheet one end of connection body is provided with several cushions, the first connection sheet one end and coupled cushion for connecting body are stretched into the anode pole piece ear cavity of a battery body, it is provided with pole piece ear for connecting first, the cavity of two connection sheets, second connection sheet end surface is fixedly installed several cushions, second connection sheet one end and coupled cushion are stretched into the cathode pole piece ear cavity of another battery body, the projection of first connection sheet is nested in the second connection sheet through hole.It when using of the invention, can both achieve a fixed connection, production efficiency can be improved again, and reduce production cost.The present invention has simple in construction, and it is reasonable to set, the advantages that low manufacture cost.
Description
Technical field
The present invention relates to the battery pack production technical field in new energy industry, refers in particular to lug in a kind of lithium battery group and connects
Structure.
Background technology
Existing industrial battery pack, especially charged lithium cells group, it is general using scolding tin connection, spot welding method by electricity
Core lug is connected with PCB connecting plates makes battery core connection in groups.Existing this battery pack is not easily assembled, and welding operation side be present
Method is difficult and high temperature solder welds the problems such as injuring battery core.Scolding tin overlong time has certain damage to cell polar ear, and spot welding is held
Easily there is not prison welding to consolidate, fry the problems such as weldering and solder skip.
In order to solve the above problems, the method for generally use is fastened by screw in industry.This method is simple
Also it is effective, but the time of time dismounting is long, production efficiency is had a strong impact on, so as to cause production cost too high.
Therefore it is necessary to improve the attachment structure of existing interior lug.
The content of the invention
It is reasonable in design, make in view of the defects and deficiencies of the prior art, the present invention intends to provide a kind of simple in construction
With electrode tab connection structure in convenient lithium battery group.
To achieve the above object, the technical solution adopted by the present invention is：
Electrode tab connection structure in a kind of lithium battery group of the present invention, including lithium battery group body and connection body, institute
State lithium battery group body and include several battery bodies, the battery body is provided with two pole piece ears, and the connection is originally
Body includes the first connection sheet and the second connection sheet, and the cavity for connecting first and second connection sheet is provided with the pole piece ear, should
Cavity one end is opening-like, and the first connection sheet end surface is fixedly installed several cushions, first connection sheet
One end and coupled cushion are stretched into the anode pole piece ear cavity of a battery body, second connection sheet one
End surfaces are fixedly installed several cushions, and described second connection sheet one end and coupled cushion stretch into another
In the cathode pole piece ear cavity of individual battery body, another end surfaces of the first connection sheet are provided with several projections, and described
Another end surfaces of two connection sheets are provided with several through holes mutually matched with projection, and projection nesting is in through-holes.
Further, the first connection sheet end surface is located at the underface for being connected thereto cushion, and described second connects
Contact pin end surface is located at the surface for being connected thereto cushion.
Further, the cushion is spring.
Further, the quantity of the cushion is two.
Further, the projection is mutually fixedly connected with through hole by welding.
Further, the cross section of the projection and through hole is in rounded shape.
After said structure, the present invention has the beneficial effect that：Using it is of the invention when, first by first connection sheet one end and with
Its cushion being connected is stretched into the anode pole piece ear cavity of a battery body, then by second connection sheet one end and and its
The cushion being connected is stretched into the cathode pole piece ear cavity of another battery body；Finally by the projection set of the first connection sheet
In the through hole of the second connection sheet；Both it can achieve a fixed connection, production efficiency can be improved again, and reduce production cost.This hair
Bright have simple in construction, and it is reasonable to set, the advantages that low manufacture cost.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present invention；
Fig. 2 is A-A partial sectional views in Fig. 1.
Description of reference numerals：
1st, battery body；1-1, pole piece ear；21st, the first connection sheet；21-1, projection；
22nd, the second connection sheet；3rd, cushion.
Embodiment
Technical scheme is illustrated with embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1 to Figure 2, electrode tab connection structure in a kind of lithium battery group of the present invention, including lithium battery group sheet
Body and connection body, the lithium battery group body include several battery bodies 1, and the battery body 1 is provided with two
Pole piece ear 1-1, the anode pole piece ear 1-1 of a battery body 1 are by connecting the cathode pole piece of body and another battery body 1
Ear 1-1.
The connection body includes the first connection sheet 21 and the second connection sheet 22, is provided with and is used in the pole piece ear 1-1
The cavity of first and second connection sheet 21,22 is connected, the cavity one end is opening-like, and the end surface of the first connection sheet 21 is fixed
Several cushions 3 are provided with, described one end of first connection sheet 21 and coupled cushion 3 stretch into a battery sheet
In the anode pole piece ear 1-1 cavitys of body 1, the end surface of the second connection sheet 22 is fixedly installed several cushions 3, described
The one end of second connection sheet 22 and coupled cushion 3 stretch into the cathode pole piece ear 1-1 cavitys of another battery body 1
In, 21 another end surfaces of the first connection sheet are provided with several projections 21-1,22 another end surfaces of the second connection sheet
Several through holes matched with projection 21-1 phases are provided with, projection 21-1 nestings are in through-holes.
Further, the end surface of the first connection sheet 21, which is located at, is connected thereto the underface of cushion 3, and described second
The end surface of connection sheet 22 is located at the surface for being connected thereto cushion 3；So set primarily to resigning, is also allowed for simultaneously
Projection 21-1 is inserted in into through hole.
Further, the cushion 3 is spring, naturally it is also possible to uses flexible shell fragment, the cushion 3 is set
Purpose be that connection sheet can be firmly secured in pole piece ear 1-1 cavitys.
Further, the quantity of the cushion 3 is two.
Further, the projection 21-1 is mutually fixedly connected with through hole by welding, further reinforces its connection.
Further, the cross section of the projection 21-1 and through hole are in rounded shape, are easy to projection 21-1 inserting through hole
In.
When using of the invention, a battery sheet is first stretched into first connection sheet one end and coupled cushion
In the anode pole piece ear cavity of body, then second connection sheet one end and coupled cushion stretched into another battery sheet
In the cathode pole piece ear cavity of body；Finally the projection of the first connection sheet is enclosed in the through hole of the second connection sheet；Both can realize
It is fixedly connected, production efficiency can be improved again, reduces production cost.In addition, this is simple in construction, reasonable in design, manufacturing cost is low.
It is above the preferable embodiment of the present invention, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula is changed and changed.Therefore, the invention is not limited in above-mentioned embodiment, every those skilled in the art exist
Any conspicuously improved, replacement or modification made on the basis of the present invention belong to protection scope of the present invention.
Claims (6)
1. electrode tab connection structure in a kind of lithium battery group, including lithium battery group body and connection body, the lithium battery group body
Including several battery bodies (1), the battery body (1) is provided with two pole piece ears (1-1),
It is characterized in that：The connection body includes the first connection sheet (21) and the second connection sheet (22), the pole piece ear (1-1)
The cavity for connecting first and second connection sheet (21,22) is inside provided with, the cavity one end is opening-like, first connection sheet
(21) end surface is fixedly installed several cushions (3), described first connection sheet (21) one end and coupled bullet
Property pad (3) is stretched into anode pole piece ear (1-1) cavity of a battery body (1), described second connection sheet (22) one end table
Face is fixedly installed several cushions (3), and described second connection sheet (22) one end and coupled cushion (3) are stretched
In cathode pole piece ear (1-1) cavity for entering another battery body (1), another end surfaces of first connection sheet (21) are provided with
Several projections (21-1), another end surfaces of second connection sheet (22) are provided with what several were mutually matched with projection (21-1)
Through hole, projection (21-1) are nested in through-holes.
2. electrode tab connection structure in a kind of lithium battery group according to claim 1, it is characterised in that：First connection sheet
(21) end surface is located at the underface for being connected thereto cushion (3), and end surface is located at and it for second connection sheet (22)
Connect the surface of cushion (3).
3. electrode tab connection structure in a kind of lithium battery group according to claim 2, it is characterised in that：The cushion (3)
For spring.
4. according to electrode tab connection structure in a kind of any described lithium battery group of Claims 2 or 3, it is characterised in that：The bullet
Property pad (3) quantity be two.
5. electrode tab connection structure in a kind of lithium battery group according to claim 1, it is characterised in that：The projection (21-1)
Mutually it is fixedly connected by welding with through hole.
6. electrode tab connection structure in a kind of lithium battery group according to claim 1, it is characterised in that：The projection (21-1)
It is in rounded shape with the cross section of through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511016193.0A CN105449149B (en) | 2015-12-30 | 2015-12-30 | Electrode tab connection structure in a kind of lithium battery group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511016193.0A CN105449149B (en) | 2015-12-30 | 2015-12-30 | Electrode tab connection structure in a kind of lithium battery group |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105449149A CN105449149A (en) | 2016-03-30 |
| CN105449149B true CN105449149B (en) | 2017-11-14 |
Family
ID=55559117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511016193.0A Active CN105449149B (en) | 2015-12-30 | 2015-12-30 | Electrode tab connection structure in a kind of lithium battery group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105449149B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113839148B (en) * | 2020-06-05 | 2023-09-12 | 欣旺达电动汽车电池有限公司 | Battery module and busbar welding method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013154171A1 (en) * | 2012-04-12 | 2013-10-17 | 日本発條株式会社 | Connector |
| CN203617374U (en) * | 2013-11-26 | 2014-05-28 | 合肥国盛电池科技有限公司 | Battery pack parallel arrangement device |
| CN104009198B (en) * | 2014-03-25 | 2016-01-20 | 江苏华东锂电技术研究院有限公司 | Lug jockey and there is the battery pack of lug jockey |
| CN204680715U (en) * | 2015-05-29 | 2015-09-30 | 浙江西凯新能源开发有限公司 | Battery connecting construction |
| CN205282577U (en) * | 2015-12-28 | 2016-06-01 | 惠州Tcl金能电池有限公司 | Lithium cell hot pressing assembly devices |
-
2015
- 2015-12-30 CN CN201511016193.0A patent/CN105449149B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105449149A (en) | 2016-03-30 |
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| PB01 | Publication | ||
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| GR01 | Patent grant | ||
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Address after: 215000 Bamboo Garden Road, Suzhou high tech Zone, Jiangsu Province, No. 209 Patentee after: Suzhou Funeng Technology Co.,Ltd. Country or region after: China Address before: 215000 Bamboo Garden Road, Suzhou high tech Zone, Jiangsu Province, No. 209 Patentee before: SUZHOU KENIUPU NEW ENERGY TECHNOLOGY Co.,Ltd. Country or region before: China |
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