CN105655651A - Articulated reeling structure of U shaped busbar of lithium ion battery - Google Patents
Articulated reeling structure of U shaped busbar of lithium ion battery Download PDFInfo
- Publication number
- CN105655651A CN105655651A CN201510564965.8A CN201510564965A CN105655651A CN 105655651 A CN105655651 A CN 105655651A CN 201510564965 A CN201510564965 A CN 201510564965A CN 105655651 A CN105655651 A CN 105655651A
- Authority
- CN
- China
- Prior art keywords
- confluxes
- shaped sheet
- sheet
- lithium ion
- core
- 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.)
- Pending
Links
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 18
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000003466 welding Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 210000005069 ears Anatomy 0.000 claims description 7
- 230000005405 multipole Effects 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 abstract 3
- -1 nickel metal hydride Chemical class 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000009466 transformation 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
-
- 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
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
Abstract
The invention relates to the technical field of lithium ion secondary battery manufacture, and provides an articulated reeling structure of U shaped busbar of lithium ion battery. The structure comprises a square aluminum shell body, an end cover, a roll core, an insulation lining, a connection sheet, and a U shaped busbar. The shell body and the end cover are connected to form a cavity; the roll core, insulation lining, connection sheet, and U shaped busbar are all arranged in the cavity; the insulation lining is arranged between the roll core and the shell body; the U shaped busbar is connected to the tab of the roll core and the connection sheet, and the connection sheet is connected to the end cover. The design and structure are simple, the effective space for electrical core is increased, the rate capability of battery is improved, moreover, all parts are fixedly connected, the structure is user-friendly and reliable, time and labor are saved, the battery manufacture cost is reduced, and the structure is suitable for the fields such as electric vehicles, and the like.
Description
Technical field
What the present invention relates to is that the U-shaped sheet that confluxes of a kind of lithium ion battery connects formula winding-structure, belongs to lithium-ion secondary cell manufacturing technology field.
Background technology
Lithium-ion secondary cell, because its lithium ion in charge and discharge process moves around at positive and negative electrode and be called as " rocking chair type battery ". Compared to traditional plumbic acid, nickel cadmium, nickel metal hydride battery, it has environmental friendliness, and energy density is big, and the series of advantages such as operating voltage height, has extended cycle life, and self-discharge is little, are thus applied to all trades and professions gradually. Along with the development of new forms of energy industry, the walking-replacing tool of the environmental protection classes such as electric vehicle enters into the life of people gradually. Power cell electric vehicle used in current industry require it to have internal resistance is little, high rate performance is excellent, and energy density wants high characteristic.
Meeting above requirement, the method usually adopted at present is that battery core is designed to multi pole ears winding-structure or laminated structure. Multi pole ears winding-structure is divided into again two kinds, and one welds multiple lug on corresponding pole piece, and another kind is exactly directly adopt pole piece base material as lug, and former approach can make that energy capacity of battery density is less than normal and inside battery structure is smooth not; The core that then a kind of method makes is smooth and energy capacity of battery density is relatively large, but this kind of method is owing to making the base material thinner (10-30um) of lug, lug with the phenomenon that the fracture of part lug easily occurs or scraps in end cover for battery cells lid or end cap lid outlet line welding process; And laminated structure because its complicated operation, making processes in actual production process are loaded down with trivial details, the problem such as burr, part, empty weldering easily occurs and causes the final quality of battery also to be difficult to be ensured, can in field application such as electromobiles.
Summary of the invention
The present invention provides the U-shaped sheet that confluxes of a kind of lithium ion battery and connects formula winding-structure, improved by technology, by a kind of U-shaped conflux sheet together with the tab welding in multi pole ears core structure after be connected with end cover for battery cells through connection piece, effectively prevent the fracture of lug and scrap phenomenon. This project organization is simple, add the effective space of battery core, it is to increase the big current high rate performance of battery, and each parts are connected firmly, it may also be useful to convenient, reliability height, and time saving and energy saving, saves production cost.
The concrete technical scheme of the present invention is as follows:
The present invention relates to the U-shaped sheet that confluxes of a kind of lithium ion battery and connect formula winding-structure, described structure comprises: square aluminum shell housing, end cap, core, insulating bushing, U-shaped sheet and the connection piece of confluxing. Described housing and end cap are connected to form cavity, described core, insulating bushing, U-shaped conflux sheet and inside cavity is all located at by connection piece, described insulating bushing is between core and housing, and the described U-shaped sheet that confluxes is connected with connection piece with core lug, and described connection piece is connected with end cap.
The described U-shaped sheet that confluxes is the tinsel of special shape, vacancy in the middle part of it, and folding and horizontal vertical are turned in both sides, and entirety presents U-shape structure, and folding portion divides width to be 5-8mm, and the sheet thickness that confluxes is 0.2-1mm.
Described U-shaped sheet folding portion of confluxing is divided and is welded together with multi pole ears, can weld two and two or more core according to design, and the other end plane and connection piece are weldingly connected, and welding process can be that ultrasonic welding, resistance welding or Laser Welding are welded.
The described U-shaped sheet that confluxes is divided into positive pole to conflux sheet and negative pole confluxes sheet, and wherein positive pole sheet material of confluxing be aluminium, negative pole sheet material of confluxing is copper.
Accompanying drawing explanation
Fig. 1 is that the U-shaped sheet that confluxes of lithium ion battery of the present invention connects battery structure explosive view in formula winding-structure. 1 being wherein square aluminum shell housing in Fig. 1,2 is the end cap of square aluminum shell housing, and 3 is the core of square aluminum shell enclosure interior, and 4 is insulating bushing, and 5 is the U-shaped sheet that confluxes, and 6 is connection piece.
Fig. 2 is the structural representation that the U-shaped sheet that confluxes of lithium ion battery of the present invention connects the U-shaped sheet that confluxes in formula winding-structure. 51 being wherein that sheet folding portion of confluxing is divided in Fig. 2, for connecting multi pole ears core, 52 is the sheet platform end that confluxes, and is weldingly connected with connection piece.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is done further detailed description; enumerate the preferred embodiment that specific embodiment is the present invention; the claim of the present invention can not be limited; the present invention still has other concrete enforcement mode multiple; all employings are equal to replacement or equivalent transformation and all technical schemes of being formed, all belong within the scope of protection of present invention.
Consult Fig. 1 to Fig. 2 must know, structure that in this specification sheets, accompanying drawing illustrates, ratio, size etc., all only content in order to coordinate specification sheets to explain, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the present invention, therefore do not have an essential meaning in technology, the adjustment of the modification of any structure, the change of proportionlity or size, under the effect that can produce not affecting the present invention and the object that can reach, all should still drop in the covering scope of disclosed technology contents.
As shown in Figure 1, the U-shaped sheet that confluxes of a kind of lithium ion battery connects formula winding-structure, described structure comprise one-body molded upper end open square aluminum shell housing 1, be used for the end cap 2 of closure casing, the core 3 being arranged on enclosure interior, between core 3 with housing 1, be used for isolated core 3 and the insulating bushing 4 of square aluminum shell housing 1, the U-shaped sheet 5 and be connected the connection piece 6 of end cap 2 and the U-shaped sheet 5 that confluxes of confluxing that has been connected with core 3 and confluxed and act on. Wherein said insulating bushing 3 is PP(polypropylene) or PET(Polyethylene terephthalate) transparent film, thickness is 0.1-0.5mm.
As shown in Figure 2, vacancy in the middle part of the described U-shaped sheet 5 that confluxes, folding and horizontal vertical are turned in both sides, entirety presents U-shape structure, folding portion divides 51 width to be 5-8mm, U-shaped sheet 5 thickness that confluxes is 0.3-1mm, and U-shaped sheet folding portion of confluxing is divided and welded together with multi pole ears core 3, and another planar ends 52 is used for being weldingly connected with connection piece.
As preferably, positive pole sheet material of confluxing be aluminium, negative pole sheet material of confluxing is copper.
As preferably, welding process is ultrasonic welding.
As preferably, positive pole web plate material is aluminium, negative pole web plate material is copper.
A kind of lithium ion battery of the present invention is U-shaped, and the sheet that confluxes connects many deficiencies that formula winding-structure solves tradition spirally wound structure and laminated structure exists in technique, and structure design parts simply efficient, each are connected firmly, reliability height, substantially increases product utilization rate.
Claims (4)
1. the U-shaped sheet that confluxes of lithium ion battery connects formula winding-structure, this structure comprises: square aluminum shell housing, end cap, core, insulating bushing, U-shaped sheet and the connection piece of confluxing, described housing and end cap are connected to form cavity, described core, insulating bushing, connection piece and the U-shaped sheet that confluxes all are located at inside cavity, described insulating bushing is between core and housing, the described U-shaped sheet that confluxes is connected with connection piece with core respectively, and described connection piece is connected with end cap.
2. the U-shaped sheet that confluxes of a kind of lithium ion battery according to claim 1 connects formula winding-structure, it is characterized in that vacancy in the middle part of the described U-shaped sheet that confluxes, folding and horizontal vertical are turned in both sides, and entirety presents U-shape structure, folding portion divides width to be 5-8mm, and the sheet thickness that confluxes is 0.3-1mm.
3. the U-shaped sheet that confluxes of a kind of lithium ion battery according to claim 1 connects formula winding-structure, it is characterized in that described U-shaped sheet folding portion of confluxing is divided to weld together with multi pole ears, the other end and connection piece are weldingly connected, and welding process is ultrasonic welding, resistance welding and Laser Welding welding.
4. the U-shaped sheet that confluxes of a kind of lithium ion battery according to claim 1 connects formula winding-structure, it is characterised in that the described U-shaped sheet that confluxes is divided into positive pole to conflux sheet and negative pole confluxes sheet, and wherein positive pole sheet material of confluxing be aluminium, negative pole sheet material of confluxing is copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510564965.8A CN105655651A (en) | 2015-09-08 | 2015-09-08 | Articulated reeling structure of U shaped busbar of lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510564965.8A CN105655651A (en) | 2015-09-08 | 2015-09-08 | Articulated reeling structure of U shaped busbar of lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105655651A true CN105655651A (en) | 2016-06-08 |
Family
ID=56482091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510564965.8A Pending CN105655651A (en) | 2015-09-08 | 2015-09-08 | Articulated reeling structure of U shaped busbar of lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105655651A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110534840A (en) * | 2019-08-19 | 2019-12-03 | 欣旺达电子股份有限公司 | Battery modules and battery heat change method |
| CN111785902A (en) * | 2020-07-15 | 2020-10-16 | 欣旺达电动汽车电池有限公司 | Bi-pass single battery and manufacturing method thereof |
| CN111799729A (en) * | 2020-05-22 | 2020-10-20 | 北京卫星制造厂有限公司 | High-power multilayer composite bus bar capable of being shaped for space navigation |
| CN115347329A (en) * | 2022-06-30 | 2022-11-15 | 广西宁福新能源科技有限公司 | Novel cylindrical lithium battery busbar structure, battery cell and manufacturing process thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102024995A (en) * | 2009-09-22 | 2011-04-20 | 深圳市比克电池有限公司 | Novel lithium ion power battery |
| CN203085669U (en) * | 2012-12-17 | 2013-07-24 | 天津力神电池股份有限公司 | Lithium-ion power battery |
| CN103730625A (en) * | 2013-12-31 | 2014-04-16 | 张晓红 | Lithium-ion battery with high rate discharge performance |
| CN205069795U (en) * | 2015-09-08 | 2016-03-02 | 江苏海四达电源股份有限公司 | Lithium ion battery U type piece articulated coiling structure of converging |
-
2015
- 2015-09-08 CN CN201510564965.8A patent/CN105655651A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102024995A (en) * | 2009-09-22 | 2011-04-20 | 深圳市比克电池有限公司 | Novel lithium ion power battery |
| CN203085669U (en) * | 2012-12-17 | 2013-07-24 | 天津力神电池股份有限公司 | Lithium-ion power battery |
| CN103730625A (en) * | 2013-12-31 | 2014-04-16 | 张晓红 | Lithium-ion battery with high rate discharge performance |
| CN205069795U (en) * | 2015-09-08 | 2016-03-02 | 江苏海四达电源股份有限公司 | Lithium ion battery U type piece articulated coiling structure of converging |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110534840A (en) * | 2019-08-19 | 2019-12-03 | 欣旺达电子股份有限公司 | Battery modules and battery heat change method |
| CN111799729A (en) * | 2020-05-22 | 2020-10-20 | 北京卫星制造厂有限公司 | High-power multilayer composite bus bar capable of being shaped for space navigation |
| CN111799729B (en) * | 2020-05-22 | 2021-09-07 | 北京卫星制造厂有限公司 | High-power multilayer composite bus bar capable of being shaped for space navigation |
| CN111785902A (en) * | 2020-07-15 | 2020-10-16 | 欣旺达电动汽车电池有限公司 | Bi-pass single battery and manufacturing method thereof |
| CN115347329A (en) * | 2022-06-30 | 2022-11-15 | 广西宁福新能源科技有限公司 | Novel cylindrical lithium battery busbar structure, battery cell and manufacturing process thereof |
| CN115347329B (en) * | 2022-06-30 | 2024-04-26 | 广西宁福新能源科技有限公司 | Novel busbar structure of cylindrical lithium battery, battery core and manufacturing process of novel busbar structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160608 |
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| WD01 | Invention patent application deemed withdrawn after publication |