CN201623213U - Round-cell square-shell lithium ion secondary battery - Google Patents
Round-cell square-shell lithium ion secondary battery Download PDFInfo
- Publication number
- CN201623213U CN201623213U CN2010201629037U CN201020162903U CN201623213U CN 201623213 U CN201623213 U CN 201623213U CN 2010201629037 U CN2010201629037 U CN 2010201629037U CN 201020162903 U CN201020162903 U CN 201020162903U CN 201623213 U CN201623213 U CN 201623213U
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- CN
- China
- Prior art keywords
- lithium ion
- connecting band
- ion secondary
- housing
- shell
- 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.)
- Expired - Fee Related
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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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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a round-cell square-shell lithium ion secondary battery, which comprises a shell, a battery cell assembled in the shell and positive and negative lugs. The lithium ion secondary battery is characterized in that: the battery cell consists of two to twenty cylindrical roll cores which are connected side by side in parallel, anticorrosive filler is filled in the gap between the parallel cylindrical roll cores, the shell is a square steel or aluminium shell, and a positive connecting band and a negative connecting band which are connected with the roll cores are arranged on the two symmetrical inner sides of the square shell, and are respectively connected with a positive terminal and a negative terminal which are welded on both sides of an upper cover of the shell. The lithium ion secondary battery has the advantages of more stable electrical structure, more excellent heat dispersion, lower internal resistance, more stable electrical performance and more convenient and stable external fixation, and can be widely applied to electrical bicycles, electrical motorcycles, mopeds, automobiles and the like.
Description
Technical field
The utility model relates to a kind of lithium ion battery; Relate in particular to a kind of high-power lithium ion electrokinetic cell.
Background technology
The structure of existing high-power lithium ion electrokinetic cell has three kinds usually: one of them is a cylinder monomer 20Ah structure; It comprises case top lid, housing, positive pole ear, lower gasket, goes up sealing gasket, negative pole, volume core.This structural requirement pole piece is longer, diameter is big after being wound into the cylindrical roll core, after being fitted into shell, battery is unfavorable for distributing of heat in charge and discharge process, and then influence the stable of battery electrical property, and long because of pole piece, the bad meeting of a pole piece causes more waste, thereby causes higher fraction defective.Wherein two are coiling square monomer 20Ah structures; It comprises housing, lug brace, lower seal pad, go up sealing gasket, outside connect double-screw bolt, outward connect pad, connect clamp nut, rivet outward.The maximum disadvantage of this structure is that its inner in parallel a plurality of volume cores are oval structure, and oval structure is not the most stable form, and it can cause that the applying between pole piece plays pendulum in the electric core in electric core, thereby causes the consistency of battery to differ greatly.Wherein three are lamination square monomer 20Ah structures; This structure is rolled up core for the stack of multilayer pole piece except that it, and other accessory is identical with coiling square monomer 20Ah structure with assembling mode.Its shortcoming is: electric core is that the multilayer pole piece is superimposed, and its make efficiency is too low.
The utility model content
The utility model purpose is to provide a kind of round core side case lithium ion secondary cell.To realize that battery capacity is big, electrical property is more stable, heat dispersion is better, and external stability is more convenient and stable.
The technical solution of the utility model is: comprise housing, be assemblied in electric core, positive and negative lug brace in the housing, it is characterized in that, described electric core is to be formed in parallel side by side by 2-20 pitch circle column type volume core, in the gap between its each pitch circle column type electricity core in parallel side by side anticorrosion packing material is housed, described housing is square steel or aluminum enclosure, two inboards of square housing symmetry are provided with and roll up anodal connecting band and the negative pole connecting band that core is connected, and its anodal connecting band links to each other with the both positive and negative polarity joint pin that is welded in the case top lid both sides respectively with the negative pole connecting band.
Described anticorrosion packing material is PP or PE plastics.
Rivet by aluminium rivet between anodal connecting band in the described housing and the anodal joint pin outside the housing.
Rivet by copper rivet between negative pole connecting band in the described housing and the negative pole joint pin outside the housing.
Advantage of the present utility model: the battery of this structure helps realizing the consistency of mechanization and automated production and raising volume core because of the internal electrical core is a cylindrical electrical core; Its electrical structure is more stable; Battery capacity is increased many cylindrical electrical core parallel connections; And the parallel connection of many cylinders makes electric core form flat-square-shaped outward, compares the radiating surface that has effectively increased battery with the cylindrical battery of capacity, makes heat dispersion better, is filled with anticorrosion packing material in the gap between each pitch circle column type electricity core.Can reduce the injection rate of housing electrolyte inside, allow the interior unnecessary electrolyte of housing contact with moistening with the volume core more fully simultaneously.Also can reduce the internal resistance of battery to a great extent, battery electrical property is more stable; Also realize and the electric core of more piece circle can be assemblied in the square housing side by side, effectively improved the production efficiency and the consistency level of battery, make the external stability of battery more convenient and stable simultaneously.In addition, rivet by copper rivet between the negative lug brace in lithium ion power cell cathode joint pin and the battery, can before volume core lug and lug brace weld, finish this operation, better guarantee the compactness that is connected between negative terminal and inner negative electrode lug brace.The utility model can be widely used in electric bicycle, battery-operated motor cycle, vehicle using motor and automobile etc.
Description of drawings
Fig. 1 is the utility model Facad structure schematic diagram;
Fig. 2 is the side structure schematic diagram of Fig. 1.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment:
The housing 1 of present embodiment is square steel or aluminum enclosure: five pitch circle column types volume core 2 parallel connection side by side is assemblied in the electric core of composition in square steel or the aluminum enclosure, in the gap between each pitch circle column type volume core in parallel side by side anticorrosion packing material 3 is housed; Two inboards that anodal connecting band 4 that is connected with the volume core and negative pole connecting band 5 place square housing symmetry respectively; Its anodal connecting band 4 is riveted by aluminium rivet with the anodal joint pin 7 that is welded in case top lid 6 one sides; Respectively add pad 11 thereon down; On anodal joint pin 7, positive strap 8 is housed; Its negative pole connecting band 5 is riveted by copper rivet with the negative pole joint pin 9 that is welded in case top lid 6 opposite sides; On its negative pole joint pin negative pole brace 10 is housed.Explosion-proof valve 12 is housed between positive and negative joint pin.
Claims (4)
1. round core side case lithium ion secondary cell, comprise housing, be assemblied in electric core, positive and negative lug brace in the housing, it is characterized in that, described electric core is to be formed in parallel side by side by 2-20 column type volume core, in the gap between its each pitch circle column type electricity core in parallel side by side anticorrosion packing material is housed, described housing is square steel or aluminum enclosure, two inboards of square housing symmetry are provided with and roll up anodal connecting band and the negative pole connecting band that core is connected, and its anodal connecting band links to each other with the both positive and negative polarity joint pin that is welded in the case top lid both sides respectively with the negative pole connecting band.
2. round core side according to claim 1 case lithium ion secondary cell is characterized in that described anticorrosion packing material is PP or PE plastics.
3. round core side according to claim 1 case lithium ion secondary cell is characterized in that, rivets by aluminium rivet between anodal connecting band in the described housing and the anodal joint pin outside the housing.
4. round core side according to claim 1 case lithium ion secondary cell is characterized in that, rivets by copper rivet between negative pole connecting band in the described housing and the negative pole joint pin outside the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201629037U CN201623213U (en) | 2010-04-19 | 2010-04-19 | Round-cell square-shell lithium ion secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201629037U CN201623213U (en) | 2010-04-19 | 2010-04-19 | Round-cell square-shell lithium ion secondary battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201623213U true CN201623213U (en) | 2010-11-03 |
Family
ID=43026670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201629037U Expired - Fee Related CN201623213U (en) | 2010-04-19 | 2010-04-19 | Round-cell square-shell lithium ion secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201623213U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103311490A (en) * | 2013-04-28 | 2013-09-18 | 潘珊 | Power-type lithium-ion battery pack and manufacturing method thereof |
| CN111816800A (en) * | 2020-07-17 | 2020-10-23 | 河南平煤国能锂电有限公司 | Single battery with internal battery cores connected in series or in parallel in sequence |
| CN113991186A (en) * | 2021-10-29 | 2022-01-28 | 蜂巢能源科技(无锡)有限公司 | Battery assembly method and lithium battery |
| WO2023092338A1 (en) * | 2021-11-24 | 2023-06-01 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, power consuming device, and method and device for preparing battery cell |
-
2010
- 2010-04-19 CN CN2010201629037U patent/CN201623213U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103311490A (en) * | 2013-04-28 | 2013-09-18 | 潘珊 | Power-type lithium-ion battery pack and manufacturing method thereof |
| CN103311490B (en) * | 2013-04-28 | 2015-08-26 | 潘珊 | Power-type lithium ion battery group and manufacture method thereof |
| CN111816800A (en) * | 2020-07-17 | 2020-10-23 | 河南平煤国能锂电有限公司 | Single battery with internal battery cores connected in series or in parallel in sequence |
| CN113991186A (en) * | 2021-10-29 | 2022-01-28 | 蜂巢能源科技(无锡)有限公司 | Battery assembly method and lithium battery |
| CN113991186B (en) * | 2021-10-29 | 2023-10-27 | 蜂巢能源科技(无锡)有限公司 | Battery assembly method and lithium battery |
| WO2023092338A1 (en) * | 2021-11-24 | 2023-06-01 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, power consuming device, and method and device for preparing battery cell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101103 Termination date: 20160419 |