CN205452456U - Big cylindrical lithium ion battery of high magnification - Google Patents
Big cylindrical lithium ion battery of high magnification Download PDFInfo
- Publication number
- CN205452456U CN205452456U CN201521112860.0U CN201521112860U CN205452456U CN 205452456 U CN205452456 U CN 205452456U CN 201521112860 U CN201521112860 U CN 201521112860U CN 205452456 U CN205452456 U CN 205452456U
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- CN
- China
- Prior art keywords
- negative pole
- battery
- anode
- lithium ion
- end cap
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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
-
- 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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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model provides a big cylindrical lithium ion battery of high magnification belongs to the battery technology field, including a battery case, battery case's both ends are anodal end cover and negative pole end cover respectively, are equipped with a positive terminal and a negative terminal on anodal end cover and the negative pole end cover respectively, are equipped with an electric core in the battery case, and the both ends of electric core have an anodal ear and a negative pole ear to draw respectively, and an anodal ear and an anodal mass flow piece link to each other, and a negative pole ear and a negative pole mass flow piece link to each other, flexible coupling between anodal mass flow piece and the anodal end cover, flexible coupling between negative pole mass flow piece and the negative pole end cover. The utility model discloses anodal mass flow piece and negative pole mass flow piece leading -in solved big cylindrical lithium ion battery utmost point ear with just, the negative pole end cover is connected the problem of difficulty, has reduced the contact internal resistance of battery, the battery just, the negative pole ear and just, negative pole end cover two directions of following the battery respectively draw forth, the heat dissipation of messenger's battery is very even.
Description
Technical field
This utility model relates to cell art, specifically a kind of large cylindrical lithium ion battery of high magnification.
Background technology
Battery is during high power charging-discharging, very big owing to flowing through the electric current of battery, the diverse location in battery inside and outside there will be fever phenomenon, and temperature very Gao Shihui causes cell discharge performance poor, and heat can not be controlled effectively and also can lose battery, safety problem even occurs.The diameter cylindrical battery more than 45mm at present, owing to being difficult to process the problem connected between lug and cover plate, many employing lugs and the pattern of cover plate mechanical fasteners, so pattern often occurs fastening bad phenomenon, battery ohmic internal resistance is increased, when battery need big battery operated time, battery occurs that heating is serious, and discharge performance is poor.
Summary of the invention
In view of this, when this utility model aims to provide a kind of big current work, battery-heating amount parts temperature rise little, each large cylindrical lithium ion battery of uniform high magnification.
For reaching above-mentioned purpose, the technical solution of the utility model is achieved in that a kind of large cylindrical lithium ion battery of high magnification, including a battery case, the two ends of described battery case are respectively anode end cap and negative pole end cap, a positive terminal and a negative terminal it is respectively equipped with on described anode end cap and negative pole end lid, a battery core it is provided with in described battery case, the two ends of described battery core have an anode ear and a negative electrode lug to draw respectively, described anode ear and an anode collection sheet are connected, described negative electrode lug and a negative pole currect collecting sheet are connected, it is flexible coupling between described anode collection sheet and anode end cap, it is flexible coupling between described negative pole currect collecting sheet and negative pole end cap.
Further, described battery case is cylindrical structural, and described battery case diameter is more than 45mm.
Further, described anode collection sheet and the overall size of negative pole currect collecting sheet are less than or equal to the 80% of battery case diameter.
Further, described anode collection sheet is linked together with anode ear by ultrasonic bonding or laser welding, and described negative pole currect collecting sheet is linked together with negative electrode lug by ultrasonic bonding or laser welding.
Further, the structure of generally circular in shape, the square or similar circle of described anode collection sheet and negative pole currect collecting sheet.
Further, described anode collection sheet is linked together with anode end cap by metal joining strips, and described negative pole currect collecting sheet is linked together with negative pole end cap by metal joining strips.
Further, described anode collection sheet and negative pole currect collecting sheet all include a disk, described disk is welded on anode ear or negative electrode lug, the outward flange of described disk is vertically provided with lateral surface, described disk is one-body molded with lateral surface, described disk is excessive cambered surface with the junction of lateral surface, described disk and lateral surface form a cell body, described disk is provided with a connecting hole and a connection piece, one limit of described connector bends with the junction of connecting hole at it, described connector is flexible coupling with anode end cap or negative pole end cap, the both sides of described connecting hole are equipped with liquid injection hole.
Further, the material of described negative pole currect collecting sheet is copper or nickel.
Further, the material of described anode collection sheet is aluminum.
Further, described battery case and anode end cap are integrally welded by the way of laser welding, electron beam weldering or thermofussion welding, described battery case and negative pole end cap are integrally welded by the way of laser welding, electron beam weldering or thermofussion welding, it is achieved the purpose of cell sealing.
Further, described anode ear is that aluminium foil passes through laser or five metals punching molding, and negative electrode lug is that Copper Foil or aluminium foil are by laser or five metals punching molding.
Further, described positive terminal material is aluminum, and negative terminal material is copper or aluminum.
Further, described battery case material is rustless steel or aluminum.
Relative to prior art, this utility model has the advantage that
This utility model anode collection sheet solves the problem that large cylindrical lithium ion cell polar ear is connected difficulty with positive and negative electrode end cap with the importing of negative pole currect collecting sheet, decrease the contact internal resistance of battery, the positive and negative lug of battery and positive and negative electrode end cap are drawn from the both direction of battery respectively, and the heat radiation making battery is the most uniform.
Accompanying drawing explanation
The accompanying drawing constituting a part of the present utility model is further appreciated by of the present utility model for providing, and schematic description and description of the present utility model is used for explaining this utility model, is not intended that improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the large cylindrical lithium ion battery of this utility model high magnification.
Fig. 2 is anode collection sheet or the structural representation of negative pole currect collecting sheet of the large cylindrical lithium ion battery of this utility model high magnification.
Fig. 3 is anode collection sheet or the top view of negative pole currect collecting sheet of the large cylindrical lithium ion battery of this utility model high magnification.
Fig. 4 is the A-A sectional view of Fig. 3.
In figure: 1, battery case；2, anode end cap；3, negative pole end cap；4, positive terminal；5, negative terminal；6, battery core；7, anode ear；8, negative electrode lug；9, anode collection sheet；10, negative pole currect collecting sheet；11, metal joining strips；12, disk；13, lateral surface；14, cambered surface；15, cell body；16, connecting hole；17, connector；18, liquid injection hole.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in this utility model and the feature in embodiment can be mutually combined.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", on " ", D score, " front ", " afterwards ", " left ", " right ", " vertically ", " level ", " push up ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic.Thus, the feature defining " first ", " second " etc. can express or implicitly include one or more this feature.In description of the present utility model, except as otherwise noted, " multiple " are meant that two or more.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " is installed ", " being connected ", " connection " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or be integrally connected；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the connection of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in this utility model can be understood by concrete condition.
Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
nullAs Figure 1-4，A kind of large cylindrical lithium ion battery of high magnification，Including a battery case 1，Battery case 1 material is rustless steel，Battery case 1 is cylindrical structural，The a diameter of 50mm of battery case 1，The two ends of battery case 1 are respectively anode end cap 2 and negative pole end cap 3，Battery case 1 and anode end cap 2 are integral by laser welding，Battery case 1 and negative pole end cap 3 are integral by laser welding，Realize the purpose of cell sealing，Positive terminal 4 and a negative terminal 5 it is respectively equipped with on anode end cap 2 and negative pole end cap 3，Positive terminal 4 material is aluminum，Negative terminal 5 material is copper，A battery core 6 it is provided with in battery case 1，The two ends of battery core 6 have an anode ear 7 and a negative electrode lug 8 to draw respectively，Anode ear 7 passes through five metals punching molding for aluminium foil，Negative electrode lug 8 passes through five metals punching molding for Copper Foil，Anode ear 7 is connected with an anode collection sheet 9，Anode collection sheet 9 is linked together with anode ear 7 by ultrasonic bonding，Negative electrode lug 8 is connected with a negative pole currect collecting sheet 10，Negative pole currect collecting sheet 10 is linked together with negative electrode lug 8 by ultrasonic bonding，Anode collection sheet 9 is equal to the 80% of battery case 1 diameter with the overall size of negative pole currect collecting sheet 10，It is connected by metal joining strips 11 between anode collection sheet 9 with anode end cap 2，It is connected by metal joining strips 11 between negative pole currect collecting sheet 10 with negative pole end cap 3.
Anode collection sheet 9 and the structure generally circular in shape of negative pole currect collecting sheet 10, anode collection sheet 9 and negative pole currect collecting sheet 10 all include a disk 12, disk 12 is welded on anode ear 7 or negative electrode lug 8, the outward flange of disk 12 is vertically provided with lateral surface 13, disk 12 is one-body molded with lateral surface 13, disk 12 is excessive cambered surface 14 with the junction of lateral surface 13, disk 12 and lateral surface 13 form a cell body 15, disk 12 is provided with a connecting hole 16 and a connection piece 17, one limit of connector 17 bends with the junction of connecting hole 16 at it, connector 17 is flexible coupling with anode end cap 2 or negative pole end cap 3, the both sides of connecting hole 16 are equipped with liquid injection hole 18, the material of anode collection sheet 9 is aluminum, the material of negative pole currect collecting sheet 10 is copper.
This utility model solves large cylindrical battery high-multiplying power discharge and the discharge battery serious difficult problem of heating, improves battery from overcurrent ability, decreases the heat release temperature rise of battery, be effectively controlled the heat of battery.This utility model is constant-current charging of battery capacity 31.207Ah when 150A discharges, and the outer surface temperature of discharge capacity 31.173Ah battery is less than 45 DEG C.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (10)
1. the large cylindrical lithium ion battery of high magnification, it is characterized in that: include a battery case, the two ends of described battery case are respectively anode end cap and negative pole end cap, a positive terminal and a negative terminal it is respectively equipped with on described anode end cap and negative pole end lid, a battery core it is provided with in described battery case, the two ends of described battery core have an anode ear and a negative electrode lug to draw respectively, described anode ear and an anode collection sheet are connected, described negative electrode lug and a negative pole currect collecting sheet are connected, it is flexible coupling between described anode collection sheet and anode end cap, it is flexible coupling between described negative pole currect collecting sheet and negative pole end cap.
A kind of large cylindrical lithium ion battery of high magnification the most according to claim 1, it is characterised in that: described battery case is cylindrical structural, and described battery case diameter is more than 45mm.
A kind of large cylindrical lithium ion battery of high magnification the most according to claim 1, it is characterised in that: described anode collection sheet is less than or equal to the 80% of battery case diameter with the overall size of negative pole currect collecting sheet.
A kind of large cylindrical lithium ion battery of high magnification the most according to claim 1, it is characterized in that: described anode collection sheet is linked together with anode ear by ultrasonic bonding or laser welding, described negative pole currect collecting sheet is linked together with negative electrode lug by ultrasonic bonding or laser welding.
A kind of large cylindrical lithium ion battery of high magnification the most according to claim 1, it is characterised in that: the structure of generally circular in shape, the square or similar circle of described anode collection sheet and negative pole currect collecting sheet.
A kind of large cylindrical lithium ion battery of high magnification the most according to claim 1, it is characterised in that: described anode collection sheet is linked together with anode end cap by metal joining strips, and described negative pole currect collecting sheet is linked together with negative pole end cap by metal joining strips.
A kind of large cylindrical lithium ion battery of high magnification the most according to claim 1, it is characterized in that: described anode collection sheet and negative pole currect collecting sheet all include a disk, described disk is welded on anode ear or negative electrode lug, the outward flange of described disk is vertically provided with lateral surface, described disk is one-body molded with lateral surface, described disk is excessive cambered surface with the junction of lateral surface, described disk and lateral surface form a cell body, described disk is provided with a connecting hole and a connection piece, one limit of described connector bends with the junction of connecting hole at it, described connector is flexible coupling with anode end cap or negative pole end cap, the both sides of described connecting hole are equipped with liquid injection hole.
A kind of large cylindrical lithium ion battery of high magnification the most according to claim 1, it is characterised in that: the material of described negative pole currect collecting sheet is copper or nickel.
A kind of large cylindrical lithium ion battery of high magnification the most according to claim 1, it is characterised in that: the material of described anode collection sheet is aluminum.
10. according to the large cylindrical lithium ion battery of a kind of high magnification described in any one of claim 1-9, it is characterized in that: described battery case and anode end cap are integrally welded by the way of laser welding, electron beam weldering or thermofussion welding, described battery case and negative pole end cap are integrally welded by the way of laser welding, electron beam weldering or thermofussion welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521112860.0U CN205452456U (en) | 2015-12-25 | 2015-12-25 | Big cylindrical lithium ion battery of high magnification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521112860.0U CN205452456U (en) | 2015-12-25 | 2015-12-25 | Big cylindrical lithium ion battery of high magnification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205452456U true CN205452456U (en) | 2016-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521112860.0U Expired - Fee Related CN205452456U (en) | 2015-12-25 | 2015-12-25 | Big cylindrical lithium ion battery of high magnification |
Country Status (1)
| Country | Link |
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| CN (1) | CN205452456U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106410104A (en) * | 2016-08-25 | 2017-02-15 | 合肥国轩高科动力能源有限公司 | Cylindrical multi-tab battery and manufacturing method thereof |
| CN106450125A (en) * | 2016-08-29 | 2017-02-22 | 江苏天鹏电源有限公司 | Novel lithium battery structure |
| CN111403671A (en) * | 2020-03-20 | 2020-07-10 | 广东顺德工业设计研究院(广东顺德创新设计研究院) | Method for manufacturing lithium ion battery |
| CN111403672A (en) * | 2020-03-20 | 2020-07-10 | 广东顺德工业设计研究院(广东顺德创新设计研究院) | Lithium ion battery |
-
2015
- 2015-12-25 CN CN201521112860.0U patent/CN205452456U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106410104A (en) * | 2016-08-25 | 2017-02-15 | 合肥国轩高科动力能源有限公司 | Cylindrical multi-tab battery and manufacturing method thereof |
| CN106450125A (en) * | 2016-08-29 | 2017-02-22 | 江苏天鹏电源有限公司 | Novel lithium battery structure |
| CN111403671A (en) * | 2020-03-20 | 2020-07-10 | 广东顺德工业设计研究院(广东顺德创新设计研究院) | Method for manufacturing lithium ion battery |
| CN111403672A (en) * | 2020-03-20 | 2020-07-10 | 广东顺德工业设计研究院(广东顺德创新设计研究院) | Lithium ion battery |
| CN111403671B (en) * | 2020-03-20 | 2022-11-11 | 广东顺德工业设计研究院(广东顺德创新设计研究院) | Method for manufacturing lithium ion battery |
| CN111403672B (en) * | 2020-03-20 | 2022-12-30 | 广东顺德工业设计研究院(广东顺德创新设计研究院) | Lithium ion battery |
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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 |
Granted publication date: 20160810 Termination date: 20171225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |