CN113437447A - Lithium ion battery with bent tab and tab protection accessory - Google Patents
Lithium ion battery with bent tab and tab protection accessory Download PDFInfo
- Publication number
- CN113437447A CN113437447A CN202110607820.7A CN202110607820A CN113437447A CN 113437447 A CN113437447 A CN 113437447A CN 202110607820 A CN202110607820 A CN 202110607820A CN 113437447 A CN113437447 A CN 113437447A
- Authority
- CN
- China
- Prior art keywords
- lithium ion
- ion battery
- tab
- utmost point
- point ear
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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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- 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
- H01M50/533—Electrode connections inside a battery casing characterised by the shape of the leads or tabs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
- H01M50/536—Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
-
- 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 invention relates to a lithium ion battery with bent tabs and tab protection accessories, which comprises a plurality of lithium ion battery pieces which are arranged side by side, wherein each lithium ion battery piece is in a flat rectangular plate shape, one end of each lithium ion battery piece is provided with a positive tab and a negative tab, each positive tab and each negative tab comprises a vertical section connected with the lithium ion battery piece, each vertical section is parallel to a flat surface where the lithium ion battery is located, the top of each vertical section is provided with a bending section perpendicular to the vertical section, and the bending sections of the positive tabs and the negative tabs respectively face to two sides of the flat surface of the lithium ion battery pieces. The invention has the advantages that the connection of the pole lugs is convenient, the splicing surface for welding is increased on the flat tooth joint, and the welding is stable.
Description
Technical Field
The invention relates to a lithium ion battery with bent tabs and tab protection accessories, and belongs to the technical field of lithium ion batteries.
Background
The lithium ion battery has the advantages of light weight, large electric capacity, quick charging and increased charging and discharging times, namely, the service life is prolonged, the use loss is enhanced, and the lithium ion battery is favored by the market. Lithium ion battery's soft rib lies in the equipment in-process, and utmost point ear is little, need electric welding one by one, and the hole is uploaded to the metal sheet to a metal sheet of putting on utmost point ear, and utmost point ear extends to the metal sheet in proper order from the perforation on, carries out the welding to adjacent utmost point ear on the metal sheet, and in welding process, the metal sheet or the metal strip of connecting utmost point ear need be introduced, lead to welding engineering volume big, and complex operation, and the quality is difficult to guarantee.
Disclosure of Invention
In order to solve the technical problems, the invention provides a lithium ion battery with a bent tab and a tab protection accessory, which has the following specific technical scheme:
the utility model provides a lithium ion battery with utmost point ear of buckling and utmost point ear protection accessory, includes the lithium ion battery piece that a plurality of was put side by side, the lithium ion battery piece becomes flat rectangular plate-like, the one end of lithium ion battery piece is provided with anodal utmost point ear and negative pole utmost point ear, anodal utmost point ear and negative pole utmost point ear all include the vertical section of being connected with the lithium ion battery piece, vertical section is on a parallel with the flat surface at lithium ion battery place, and the top of vertical section is provided with rather than vertically bending segment, the bending segment of anodal utmost point ear and the bending segment of negative pole utmost point ear are towards the both sides of the flat surface of lithium ion battery piece respectively.
Furthermore, the tail end of the bending section is arranged to be in a flat tooth shape, so that a flat tooth joint is formed.
Furthermore, the positive electrode tab and the negative electrode tab of each lithium ion battery piece are connected in sequence to realize the capacity increase of the battery; connecting each positive electrode tab with a positive electrode tab in sequence, and connecting a negative electrode tab with a negative electrode tab to realize battery pressurization; when the lithium ion battery is used, the lithium ion battery pieces with corresponding quantity are connected in series and in parallel according to the output voltage and the expected capacitance of the battery; the bent sections of the anode tabs or the cathode tabs between the adjacent lithium ion battery pieces after series-parallel connection are butted and connected and fixed through electric welding, and rectangular channels are formed between the vertical sections of the adjacent lithium ion battery pieces.
Further, still include utmost point ear lid, utmost point ear lid is including inserting the inserted bar in the rectangle passageway that forms between the positive/negative pole utmost point ear, the inserted bar is the cuboid shape, after the inserted bar inserted the rectangle passageway, the top of taking at adjacent lithium ion battery piece in the bottom of inserted bar is provided with the draw-in groove towards the one side of bending segment, the draw-in groove extends along lithium ion battery piece utmost point ear concatenation direction, be provided with the draw-in groove pole in the draw-in groove.
Furthermore, one end of the inserted bar is provided with a flange for connecting all the inserted bars, the flange is higher than the inserted bar, and part of the flange is blocked at the bending section.
Furthermore, the top of each rib is provided with a top plate perpendicular to the rib, and the top plate is located above the bending section and parallel to the bending section.
Furthermore, a clamping groove is also formed in one side, close to the flange, of the inserted rod, and the clamping groove is parallel to the flange.
Furthermore, vertical section is located the centre of respective bending segment, and the both ends of bending segment all set up to be flat tooth form.
The working principle of the invention is as follows:
when the lithium ion battery pieces are connected in series, the positive electrode lug and the negative electrode lug of the adjacent lithium ion battery pieces are connected, after all the lithium ion battery pieces are arranged, every other lithium ion battery piece is turned over by 180 degrees, so that the lugs on the same side of all the lithium ion battery pieces are just positive and negative, and the adjacent matching welding can be realized.
When the lithium ion battery pieces are connected in parallel, the lithium ion battery pieces are sequentially arranged, and homopolar lugs are sequentially spliced.
The invention has the beneficial effects that:
the invention has the advantages that the connection of the pole lugs is convenient, the splicing surface for welding is increased on the flat tooth joint, and the welding is stable.
The invention can effectively protect the pole lug through the pole lug cover and prevent the pole lug from deforming in the using process.
Drawings
Figure 1 is a schematic view of a lithium ion battery cell of the present invention,
figure 2 is a diagram of the parallel connection state of lithium ion battery plates of the invention,
figure 3 is an enlarged view of a tab in embodiment 1 of the invention,
figure 4 is an enlarged view of a tab in embodiment 2 of the invention,
figure 5 is a schematic structural view of embodiment 4 of the socket of the present invention,
figure 6 is a schematic structural view of embodiment 5 of the socket of the present invention,
figure 7 is a schematic structural view of embodiment 6 of the socket of the present invention,
figure 8 is a schematic structural view of embodiment 7 of the socket of the present invention,
in the figure: the lithium ion battery comprises 1 lithium ion battery piece, 2 positive electrode lug, 3 negative electrode lug, 4 flat tooth joint, 5 inserted rod, 6 clamping groove, 7 flange, 8 clamping groove rod and 9 top plate.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
Example 1
As shown in fig. 1, the lithium ion battery with the bent tab and the tab protection accessory of the invention comprises a plurality of lithium ion battery pieces 1 arranged side by side, wherein each lithium ion battery piece 1 is in a flat rectangular plate shape, one end of each lithium ion battery piece 1 is provided with a positive tab 2 and a negative tab 3, each positive tab 2 and each negative tab 3 comprises a vertical section connected with the lithium ion battery piece 1, each vertical section is parallel to a flat surface where the lithium ion battery is located, the top of each vertical section is provided with a bent section perpendicular to the vertical section, and the bent sections of the positive tab 2 and the negative tab 3 respectively face to two sides of the flat surface of the lithium ion battery piece 1.
Referring to fig. 2, the ends of the bent segments are arranged in a flat tooth shape to form a flat tooth joint 4.
Referring to fig. 3, the positive electrode tab 2 and the negative electrode tab 3 of each lithium ion battery piece 1 are connected in sequence to realize battery capacity increase; sequentially connecting each positive electrode tab 2 with the positive electrode tab 2, and connecting each negative electrode tab 3 with the negative electrode tab 3 to realize battery pressurization; when in use, according to the output voltage and the expected capacitance of the battery, the lithium ion battery pieces 1 with corresponding quantity are connected in series and in parallel; the bent sections of the anode tabs 2 or the cathode tabs 3 between the adjacent lithium ion battery pieces 1 after series-parallel connection are butted and are fixedly connected through electric welding, and rectangular channels are formed between the vertical sections of the adjacent lithium ion battery pieces 1.
Example 2
Referring to fig. 4, on the basis of embodiment 1, the vertical section is located in the middle of each bending section, and both ends of each bending section are provided with flat teeth.
The embodiment is more convenient to use, and is not divided into a front part and a rear part, and during welding, the welding seam is positioned in the middle of the interval of the vertical section of the pole lug.
Example 3
Increase utmost point ear lid on embodiment 1's basis, utmost point ear lid is including inserting inserted bar 5 in the rectangle passageway that forms between positive/negative pole utmost point ear 3, inserted bar 5 is the cuboid shape, inserted bar 5 inserts the rectangle passageway back, and the top of adjacent lithium ion battery piece 1 is taken to the bottom of inserted bar 5, and the one side towards the bending segment is provided with draw-in groove 6, draw-in groove 6 extends along 1 utmost point ear concatenation direction of lithium ion battery piece, be provided with draw-in groove pole 8 in the draw-in groove 6. The clamping groove rod 8 can effectively prevent the lug cover from falling off.
Example 4
Referring to fig. 5, on the basis of embodiment 3, one end of the insertion rod 5 is provided with a rib 7 connecting all the insertion rods 5, and the rib 7 is higher than the insertion rod 5 and partially abuts against the bending section.
The flanges 7 can connect all the inserted bars 5 into a whole, so that the effect of convenient insertion is achieved.
Example 5
Referring to fig. 6, on the basis of embodiment 4, the top of the rib 7 is provided with a top plate 9 perpendicular to the rib, and the top plate 9 is positioned above the bending section and is parallel to the bending section.
The top plate 9 is blocked above the pole lugs to surround the pole lugs to play a role in protection.
Example 6
Referring to fig. 7, on the basis of embodiment 4 or 5, the insertion rod 5 is also provided with a clamping groove 6 on the side close to the rib 7, and the clamping groove 6 is parallel to the rib 7.
Be provided with draw-in groove rod 8 in draw-in groove 6, draw-in groove rod 8 all around the cladding have an epoxy layer, play the effect of antidetonation buffering.
Example 7
Referring to fig. 8, on the basis of embodiment 3, the two ends of the surface of the insertion rod 5 facing the bending section are both provided with a slot 6, a slot rod 8 is arranged in the slot 6, and the slot 6 is located at the two sides of the bending section and is parallel to the extending direction of the bending section.
The inserting rod 5 is fixed between the pole lugs by respectively arranging the clamping groove rods 8 at two sides, so that the inserting rod 5 is prevented from moving left and right.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. The utility model provides a lithium ion battery with utmost point ear and utmost point ear protection accessory of buckling which characterized in that: the lithium ion battery piece that puts side by side including a plurality of, the lithium ion battery piece becomes flat rectangular plate shape, the one end of lithium ion battery piece is provided with anodal utmost point ear and negative pole utmost point ear, anodal utmost point ear and negative pole utmost point ear all include the vertical section of being connected with the lithium ion battery piece, vertical section is on a parallel with the flat surface at lithium ion battery place, and the top of vertical section is provided with rather than vertically buckle section, the buckle section of anodal utmost point ear and the buckle section of negative pole utmost point ear are towards the both sides of the flat surface of lithium ion battery piece respectively.
2. The lithium ion battery with the bent tab and tab protection accessory as claimed in claim 1, wherein: the tail end of the bending section is arranged to be in a flat tooth shape, and a flat tooth joint is formed.
3. The lithium ion battery with the bent tab and tab protection accessory as claimed in claim 1, wherein: connecting the positive electrode tab and the negative electrode tab of each lithium ion battery piece in sequence to realize battery capacity increase; connecting each positive electrode tab with a positive electrode tab in sequence, and connecting a negative electrode tab with a negative electrode tab to realize battery pressurization; when the lithium ion battery is used, the lithium ion battery pieces with corresponding quantity are connected in series and in parallel according to the output voltage and the expected capacitance of the battery; the bent sections of the anode tabs or the cathode tabs between the adjacent lithium ion battery pieces after series-parallel connection are butted and connected and fixed through electric welding, and rectangular channels are formed between the vertical sections of the adjacent lithium ion battery pieces.
4. The lithium ion battery with the bent tab and tab protection accessory as claimed in claim 3, wherein: still include utmost point ear lid, utmost point ear lid is including inserting the inserted bar in the rectangle passageway that forms between the positive/negative pole utmost point ear, the inserted bar is the cuboid shape, after the inserted bar inserted the rectangle passageway, the top of taking adjacent lithium ion battery piece in the bottom of inserted bar, and the one side towards the bending segment is provided with the draw-in groove, the draw-in groove extends along lithium ion battery piece utmost point ear concatenation direction, be provided with the draw-in groove pole in the draw-in groove.
5. The lithium ion battery with the bent tab and the tab protection accessory as claimed in claim 4, wherein: one end of the inserted bar is provided with a flange which connects all the inserted bars, the flange is higher than the inserted bar and partially abuts against the bending section.
6. The lithium ion battery with the bent tab and the tab protection accessory as claimed in claim 4 or 5, wherein: the top of each rib is provided with a top plate perpendicular to the rib, and the top plate is located above the bending section and parallel to the bending section.
7. The lithium ion battery with the bent tab and the tab protection accessory as claimed in claim 4, wherein: one side of the inserted bar, which is close to the flange, is also provided with a clamping groove, and the clamping groove is parallel to the flange.
8. The lithium ion battery with the bent tab and tab protection accessory as claimed in claim 1, wherein: the vertical sections are located in the middle of the respective bending sections, and the two ends of each bending section are both provided with flat teeth.
9. The lithium ion battery with the bent tab and tab protection accessory as claimed in claim 1, wherein: the inserted bar all is provided with the draw-in groove towards the surperficial both ends of buckling segment, is provided with the draw-in groove pole in the draw-in groove, and the draw-in groove is located the both sides of buckling segment, is on a parallel with the extending direction of buckling segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110607820.7A CN113437447B (en) | 2021-06-01 | 2021-06-01 | Lithium ion battery with bending tab and tab protection accessory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110607820.7A CN113437447B (en) | 2021-06-01 | 2021-06-01 | Lithium ion battery with bending tab and tab protection accessory |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113437447A true CN113437447A (en) | 2021-09-24 |
| CN113437447B CN113437447B (en) | 2023-08-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110607820.7A Active CN113437447B (en) | 2021-06-01 | 2021-06-01 | Lithium ion battery with bending tab and tab protection accessory |
Country Status (1)
| Country | Link |
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| CN (1) | CN113437447B (en) |
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| CN203377303U (en) * | 2013-07-08 | 2014-01-01 | 中航锂电（洛阳）有限公司 | Connecting piece for pole lug and pole post of lithium battery and lithium battery using same |
| CN203690565U (en) * | 2014-02-11 | 2014-07-02 | 无锡市万佳联电子线缆厂 | Battery connecting line |
| WO2016020999A1 (en) * | 2014-08-06 | 2016-02-11 | 日産自動車株式会社 | Battery pack and tab-joining method |
| CN207440138U (en) * | 2017-10-25 | 2018-06-01 | 合肥国轩高科动力能源有限公司 | A kind of lithium ion battery test automation fixture |
| CN207542288U (en) * | 2017-11-03 | 2018-06-26 | 安徽力普拉斯电源技术有限公司 | A kind of electro-tricycle battery terminal protective device |
| CN207800749U (en) * | 2018-02-09 | 2018-08-31 | 中科派思储能技术有限公司 | A kind of protective case for lithium-sulfur cell lug |
| CN208622845U (en) * | 2018-08-27 | 2019-03-19 | 江西超维新能源科技股份有限公司 | A kind of high-performance stack type lithium ion battery |
| CN210628349U (en) * | 2019-07-04 | 2020-05-26 | 合肥国轩高科动力能源有限公司 | Scalable lithium ion battery utmost point ear protective sheath that can regulate and control |
-
2021
- 2021-06-01 CN CN202110607820.7A patent/CN113437447B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101877413A (en) * | 2009-04-30 | 2010-11-03 | 比亚迪股份有限公司 | Monomer battery and power battery pack containing same |
| JP2012221804A (en) * | 2011-04-11 | 2012-11-12 | Hitachi Maxell Energy Ltd | Battery pack |
| CN102332611A (en) * | 2011-09-23 | 2012-01-25 | 深圳市格瑞普电池有限公司 | Lithium ion battery pack and soldering method for single batteries therein |
| CN203377303U (en) * | 2013-07-08 | 2014-01-01 | 中航锂电（洛阳）有限公司 | Connecting piece for pole lug and pole post of lithium battery and lithium battery using same |
| CN203690565U (en) * | 2014-02-11 | 2014-07-02 | 无锡市万佳联电子线缆厂 | Battery connecting line |
| WO2016020999A1 (en) * | 2014-08-06 | 2016-02-11 | 日産自動車株式会社 | Battery pack and tab-joining method |
| CN207440138U (en) * | 2017-10-25 | 2018-06-01 | 合肥国轩高科动力能源有限公司 | A kind of lithium ion battery test automation fixture |
| CN207542288U (en) * | 2017-11-03 | 2018-06-26 | 安徽力普拉斯电源技术有限公司 | A kind of electro-tricycle battery terminal protective device |
| CN207800749U (en) * | 2018-02-09 | 2018-08-31 | 中科派思储能技术有限公司 | A kind of protective case for lithium-sulfur cell lug |
| CN208622845U (en) * | 2018-08-27 | 2019-03-19 | 江西超维新能源科技股份有限公司 | A kind of high-performance stack type lithium ion battery |
| CN210628349U (en) * | 2019-07-04 | 2020-05-26 | 合肥国轩高科动力能源有限公司 | Scalable lithium ion battery utmost point ear protective sheath that can regulate and control |
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| Publication number | Publication date |
|---|---|
| CN113437447B (en) | 2023-08-29 |
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