CN205069795U - Lithium ion battery U type piece articulated coiling structure of converging - Google Patents
Lithium ion battery U type piece articulated coiling structure of converging Download PDFInfo
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- CN205069795U CN205069795U CN201520689153.1U CN201520689153U CN205069795U CN 205069795 U CN205069795 U CN 205069795U CN 201520689153 U CN201520689153 U CN 201520689153U CN 205069795 U CN205069795 U CN 205069795U
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- confluxes
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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
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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
- 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
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Abstract
The utility model relates to a lithium ion secondary cell makes technical field, provides a lithium ion battery U type piece articulated coiling structure of converging, include: square aluminum hull casing, end cover, book core, insulating bush, connection piece and the U type piece that converges. The formation cavity is connected to casing and end cover, book core, insulating bush, connection piece and U type converge the piece and all locate inside the cavity, insulating bush between roll core and casing, the U type to converge the piece continuous with the connection piece with roll core utmost point ear, connection piece and end cover link to each other. This design simple structure, increase electric core effective space, improved the rate properties of battery, and each part firm in connection, convenient to use, the reliability is high, and labour saving and time saving reduces the cell manufacturing cost, is applicable to applications such as electric automobile.
Description
Technical field
What the present invention relates to is the U-shaped sheet articulated winding-structure that confluxes of a kind of lithium ion battery, belongs to lithium rechargeable battery manufacturing technology field.
Background technology
Lithium rechargeable battery, is called as " rocking chair type battery " because its lithium ion in charge and discharge process moves around at both positive and negative polarity.Compared to traditional plumbic acid, NI-G, Ni-MH battery, it has environmental friendliness, and energy density is large, and the series of advantages such as operating voltage is high, has extended cycle life, and self discharge is little, are thus applied to all trades and professions gradually.Along with the development of New Energy Industry, the walking-replacing tool of the environmental protection classes such as electric vehicle enters into the life of people gradually.Electrokinetic 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.
Meet 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 battery energy density can be made less than normal for a kind of front method and inside battery structure is smooth not; Then the core that makes of a kind of method is smooth and battery energy density is relatively large, but this method is owing to making the base material thinner (10-30um) of lug, lug with end cover for battery cells lid or end cap lid lead-out wire welding process in easily there is the phenomenon that part lug ruptures or scraps; And laminated structure because its complicated operation, manufacturing process in actual production process are loaded down with trivial details, easily there is the problems such as burr, part, rosin joint and cause the final mass of battery to be also difficult to be guaranteed, can in field application such as electric automobiles.
Summary of the invention
The invention provides the U-shaped sheet articulated winding-structure that confluxes of a kind of lithium ion battery, 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 brace, the fracture that effectively prevent lug with scrap phenomenon.This project organization is simple, add the battery core useful space, and improve the big current high rate performance of battery, and each parts are connected firmly, easy to use, reliability is high, and time saving and energy saving, saves production cost.
Concrete technical scheme of the present invention is as follows:
The present invention relates to the U-shaped sheet articulated winding-structure that confluxes of a kind of lithium ion battery, described structure comprises: square aluminum hull housing, end cap, core, insulating bushing, U-shaped sheet and the brace of confluxing.Described housing and end cap are connected to form cavity, described core, insulating bushing, U-shaped sheet and the brace of confluxing all are located at inside cavity, described insulating bushing is between core and housing, and the described U-shaped sheet that confluxes is connected with brace with core lug, and described brace is connected with end cap.
The described U-shaped sheet that confluxes is the sheet metal of special shape, vacancy in the middle part of it, and both sides turnover and horizontal vertical, entirety presents U-shaped structure, and folding portion partial width is 5-8mm, and the sheet thickness that confluxes is 0.2-1mm.
Described U-shaped sheet turnover part of confluxing welds together with multi pole ears, and can weld two and two or more core according to design, other end plane and brace are weldingly connected, and welding manner can be ultrasonic bonding, resistance welded or Laser Welding welding.
The described U-shaped sheet that confluxes is divided into conflux sheet and negative pole of positive pole to conflux sheet, and wherein positive pole confluxes, and sheet material is aluminium, negative pole confluxes, and sheet material is copper.
Accompanying drawing explanation
Fig. 1 is battery structure explosive view in the U-shaped sheet articulated winding-structure that confluxes of lithium ion battery of the present invention.1 be wherein square aluminum hull housing in Fig. 1,2 is end caps of square aluminum hull housing, and 3 is core of square aluminum hull enclosure interior, and 4 is insulating bushings, and 5 is the U-shaped sheets that conflux, and 6 is braces.
Fig. 2 is the structural representation of the U-shaped sheet that confluxes in the U-shaped sheet articulated winding-structure that confluxes of lithium ion battery of the present invention.51 are wherein sheet turnover parts of confluxing in Fig. 2, for connecting multi pole ears core, 52 is the sheet platform ends that conflux, and is weldingly connected with brace.
Embodiment
Below in conjunction with embodiment and accompanying drawing, further detailed description is done to the present invention; enumerating specific embodiment is preferred embodiment of the present invention; can not limit claim of the present invention; the present invention still has other concrete execution 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, the structure that in this specification, accompanying drawing illustrates, ratio, size etc., content all only in order to coordinate specification 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 the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, not affecting under effect that can produce of 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 articulated winding-structure that confluxes of a kind of lithium ion battery, described structure comprise one-body molded upper end open square aluminum hull housing 1, be used for closure casing end cap 2, be arranged on enclosure interior core 3, be used between core 3 with housing 1 isolated core 3 and the insulating bushing 4 of square aluminum hull housing 1, be connected with core 3 the U-shaped sheet 5 and be connected the brace 6 of end cap 2 and the U-shaped sheet 5 that confluxes of confluxing confluxing and act on.Wherein said insulating bushing 3 is PP(polypropylene) or PET(Polyethylene terephthalate) transparent membrane, 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, both sides turnover and horizontal vertical, entirety presents U-shaped structure, turnover part 51 width is 5-8mm, U-shaped sheet 5 thickness that confluxes is 0.3-1mm, and U-shaped sheet turnover part of confluxing welds together with multi pole ears core 3, and another planar ends 52 is used for being weldingly connected with brace.
As preferably, positive pole confluxes, and sheet material is aluminium, negative pole confluxes, and sheet material is copper.
As preferably, welding manner is ultrasonic bonding.
As preferably, positive pole connecting plate material is aluminium, and negative pole connecting plate material is copper.
The U-shaped sheet articulated winding-structure that confluxes of a kind of lithium ion battery of the present invention solves many deficiencies that traditional takeup type structure and laminated structure exist in technique, and simply efficient, each parts of structural design are connected firmly, reliability is high, substantially increases product utilization rate.
Claims (4)
1. the U-shaped sheet articulated winding-structure that confluxes of lithium ion battery, this structure comprises: square aluminum hull housing, end cap, core, insulating bushing, U-shaped sheet and the brace of confluxing, described housing and end cap are connected to form cavity, described core, insulating bushing, brace 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 brace with core respectively, and described brace is connected with end cap.
2. the U-shaped sheet articulated winding-structure that confluxes of a kind of lithium ion battery according to claim 1, it is characterized in that vacancy in the middle part of the described U-shaped sheet that confluxes, both sides turnover and horizontal vertical, entirety presents U-shaped structure, folding portion partial width is 5-8mm, and the sheet thickness that confluxes is 0.3-1mm.
3. the U-shaped sheet articulated winding-structure that confluxes of a kind of lithium ion battery according to claim 1, it is characterized in that described U-shaped sheet turnover part of confluxing welds together with multi pole ears, the other end and brace are weldingly connected, and welding manner is ultrasonic bonding, resistance welded and Laser Welding welding.
4. the U-shaped sheet articulated winding-structure that confluxes of a kind of lithium ion battery according to claim 1, it is characterized in that the described U-shaped sheet that confluxes is divided into conflux sheet and negative pole of positive pole to conflux sheet, wherein positive pole confluxes, and sheet material is aluminium, negative pole confluxes, and sheet material is copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520689153.1U CN205069795U (en) | 2015-09-08 | 2015-09-08 | Lithium ion battery U type piece articulated coiling structure of converging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520689153.1U CN205069795U (en) | 2015-09-08 | 2015-09-08 | Lithium ion battery U type piece articulated coiling structure of converging |
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| Publication Number | Publication Date |
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| CN205069795U true CN205069795U (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520689153.1U Active CN205069795U (en) | 2015-09-08 | 2015-09-08 | Lithium ion battery U type piece articulated coiling structure of converging |
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| CN (1) | CN205069795U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655651A (en) * | 2015-09-08 | 2016-06-08 | 江苏海四达电源股份有限公司 | Articulated reeling structure of U shaped busbar of lithium ion battery |
-
2015
- 2015-09-08 CN CN201520689153.1U patent/CN205069795U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655651A (en) * | 2015-09-08 | 2016-06-08 | 江苏海四达电源股份有限公司 | Articulated reeling structure of U shaped busbar of lithium ion battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 226200 No.306 Heping South Road, Huilong Town, Qidong City, Nantong City, Jiangsu Province Patentee after: Jiangsu haisida power supply Co.,Ltd. Patentee after: JIANGSU NEW POWER BATTERY & MATERIAL ENGINEERING TECHNOLOGY RESEARCH CENTER CO.,LTD. Address before: 226200 No.306 Heping South Road, Qidong City, Nantong City, Jiangsu Province Patentee before: JIANGSU HIGHSTAR BATTERY MANUFACTURING Co.,Ltd. Patentee before: JIANGSU NEW POWER BATTERY & MATERIAL ENGINEERING TECHNOLOGY RESEARCH CENTER CO.,LTD. |
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| CP03 | Change of name, title or address |