CN204857836U - Secondary cell in succession convolutes - Google Patents
Secondary cell in succession convolutes Download PDFInfo
- Publication number
- CN204857836U CN204857836U CN201520535442.6U CN201520535442U CN204857836U CN 204857836 U CN204857836 U CN 204857836U CN 201520535442 U CN201520535442 U CN 201520535442U CN 204857836 U CN204857836 U CN 204857836U
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- CN
- China
- Prior art keywords
- riveted joint
- compressing tablet
- negative
- metal
- terminal brace
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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
Abstract
The utility model discloses a secondary cell in succession convolutes, including the metal -back and be located the electric core of metal -back, still include to encapsulate electric core to be in metal attachment in the metal -back, still including the insulation support who is located the metal -back, wherein, the electricity core is provided with the insulating film including positive plate, the negative pole piece of convoluteing in succession together between positive plate and negative pole piece, wherein, stretch out respectively one side of positive plate, negative pole piece has anodal ear, the negative pole ear, be provided with the through -hole on anodal ear, the negative pole ear respectively, last anodal support connnection piece, the negative pole support connnection piece of being provided with of insulation support, anodal ear is riveted through the rivet with anodal support connnection piece and is fixed on together, the negative pole ear is riveted through the rivet with negative pole support connnection piece and is fixed on together. The utility model discloses the secondary cell of utensil, the impedance is little, and the heat production of filling, discharge is few, does not have obvious temperature rise, and its cycle life is showing and is prolonging.
Description
Technical field
The utility model relates to field of lithium ion battery, particularly a kind of Large Copacity, long-life especially require fast charging and discharging or high-multiplying power discharge condition under the lithium ion secondary battery with metal case of lamination that uses.
Background technology
In recent years, lithium ion battery is as high power heavy-current discharge battery, and application is more and more extensive, requires also more and more higher to the properties of battery.The Large Copacity metal shell continuous reeling cell core lug of current known lamination connects common structure with cover plate to be had: ultrasonic welding structure, Stud connection structure and laser penetration Welding Structure; Wherein in the majority with ultrasonic welding structure, Stud connection structure.Because lithium battery operating voltage is high, large, the memory-less effect of energy density, have extended cycle life, the advantage such as pollution-free, be applied to more and more widely in consumption, power, energy storage and various uses battery, progressively instead of the major product that traditional rechargeable battery becomes field of batteries.Along with the expansion in market, also increasing to the demand of large-capacity high-power lithium ion secondary battery, as all there is very large demand in the mobile communication base station of back-up source class, the peaking power source of wind and light generating system, car lithium battery bag, the frigid zone first aid market such as stand-by power supply and frigid zone electric motor car power supply of speedily carrying out rescue work.Require that battery cell capacity is large, power density is high, and consistency is good, be easy to combo, power brick at-30 DEG C ~+60 DEG C, under (1-10) C discharge-rate, still can normally work, its conventional 100Ah and above high-capacity lithium-ion secondary cell have the defect being difficult to go beyond.
Utility model content
The utility model, in order to solve problems of the prior art, provides a kind of continuous reeling secondary cell.
In order to realize above-mentioned object, the technical solution of the utility model is: a kind of continuous reeling secondary cell, comprise metal-back and be positioned at the battery core of metal-back, also comprise metal cover board battery core be encapsulated in described metal-back, also comprise the insulating support being positioned at metal-back, wherein, described battery core comprises continuous reeling positive plate together, negative plate, dielectric film is provided with between positive plate and negative plate, wherein, the side of described positive plate, negative plate is extended with anode ear, negative electrode lug respectively; Described anode ear, negative electrode lug are respectively arranged with through hole; Described insulating support is provided with positive terminal brace, negative terminal brace, together with described anode ear and positive terminal brace are fixed on by rivet riveting, together with described negative electrode lug and negative terminal brace are fixed on by rivet riveting.
Preferably, be also provided with aluminium riveted joint compressing tablet, described aluminium riveted joint compressing tablet, anode ear, the riveting of positive terminal brace fix on together.
Preferably, aluminium riveted joint compressing tablet, anode ear, positive terminal brace are respectively arranged with multiple, and described aluminium riveted joint compressing tablet, anode ear, positive terminal brace, aluminium riveted joint compressing tablet, positive terminal brace, anode ear, aluminium riveted joint compressing tablet successively riveting fix on together.
Preferably, be also provided with copper riveted joint compressing tablet, described copper riveted joint compressing tablet, negative electrode lug, the riveting of negative terminal brace fix on together.
Preferably, described copper riveted joint compressing tablet, negative electrode lug, negative terminal brace are respectively arranged with multiple, and described copper riveted joint compressing tablet, negative electrode lug, negative terminal brace, copper riveted joint compressing tablet, negative terminal brace, negative electrode lug, copper riveted joint compressing tablet successively riveting fix on together.
Preferably, described battery core also comprises the PE bag of parcel positive plate and negative plate.
The secondary cell of the utility model tool, has the performance of heavy-current discharge at-40 DEG C-60 DEG C and the quick charge and discharge of normal temperature, and cell polar ear and both positive and negative polarity brace adopt and rivet, and riveting pressure is large.This utility model eliminates because of positive and negative lug, positive and negative post brace material rough surface and impact on contact resistance, the contact resistance and the laminated cell pole piece corner area that effectively reduce continuous reeling cell core lug and positive and negative post brace are larger, production efficiency is relatively low, is unfavorable for the problem of control of mass production and pole piece burrs on edges, shedding difficulty.The utility model because of impedance little, charge and discharge heat production is few, without obvious temperature rise, its cycle life significant prolongation.
Accompanying drawing explanation
Fig. 1 shows the structural representation of the utility model secondary cell.
Fig. 2 shows the structural representation of the utility model battery core.
Embodiment
The technical problem solved to make the utility model, the technical scheme of employing, the technique effect easy to understand obtained, below in conjunction with concrete accompanying drawing, be described further embodiment of the present utility model.
With reference to figure 1, Fig. 2, the utility model discloses a kind of continuous reeling secondary cell, it battery core 9 comprising metal-back and be positioned at metal-back, also comprise the metal cover board 1 battery core 9 be encapsulated in described metal-back, metal cover board 1 and metal-back are encapsulated, and define the space holding battery core 9.Metal-back and metal cover board 1 can adopt Laser Welding to seal, and can certainly adopt alternate manner well-known to those skilled in the art.
Secondary cell of the present utility model, also comprise the insulating support 4 being positioned at metal-back, this insulating support 4 is positioned at the position of adjacent metal cover plate 1, the electrode of battery core 9 can be drawn.Wherein, described battery core 9 comprises continuous reeling positive plate 10 together, negative plate 11, wherein in order to insulate,
Dielectric film 12 is provided with between positive plate 10 and negative plate 11, preferably, dielectric film 12 is two-layer, and positive plate 10 and negative plate 11 separate by two-layer dielectric film 12, described positive plate 10 and negative plate 11 cut lug, forms anode ear 6, negative electrode lug 7 respectively; Described anode ear 6, negative electrode lug 7 are respectively arranged with through hole, for riveted joint.In the execution mode that the utility model one is concrete, the internal diameter of described through hole is 4.6mm.Battery core 9 of the present utility model, also comprises the PE bag 8 of parcel positive plate and negative plate.
Described insulating support 4 is provided with positive terminal brace 5, negative terminal brace 2, together with described anode ear 6 and positive terminal brace 5 are fixed on by rivet 3 riveting, described negative electrode lug 7 is determined together with 3 by rivet riveting with negative terminal brace 2.The utility model one preferred embodiment in, be also provided with aluminium riveted joint compressing tablet, described aluminium riveted joint compressing tablet, anode ear 6, positive terminal brace 5 riveting fix on together.Wherein, aluminium riveted joint compressing tablet, anode ear 6, positive terminal brace 5 are respectively arranged with multiple, and described aluminium riveted joint compressing tablet, anode ear 6, positive terminal brace 5, aluminium riveted joint compressing tablet, positive terminal brace 5, anode ear 6, aluminium riveted joint compressing tablet successively riveting fix on together.Based on identical reason, be also provided with copper riveted joint compressing tablet, described copper riveted joint compressing tablet, negative electrode lug 7, negative terminal brace 2 riveting fix on together.Preferably, described copper riveted joint compressing tablet, negative electrode lug 7, negative terminal brace 2 are respectively arranged with multiple, and described copper riveted joint compressing tablet, negative electrode lug 7, negative terminal brace 2, copper riveted joint compressing tablet, negative terminal brace 2, negative electrode lug 7, copper riveted joint compressing tablet successively riveting fix on together.
The secondary cell of the utility model tool, has the performance of heavy-current discharge at-40 DEG C-60 DEG C and the quick charge and discharge of normal temperature, and cell polar ear and both positive and negative polarity brace adopt and rivet, and riveting pressure is large.This utility model eliminates because of positive and negative lug, positive and negative post brace material rough surface and impact on contact resistance, the contact resistance and the laminated cell pole piece corner area that effectively reduce continuous reeling cell core lug and positive and negative post brace are larger, production efficiency is relatively low, is unfavorable for the problem of control of mass production and pole piece burrs on edges, shedding difficulty.The utility model because of impedance little, charge and discharge heat production is few, without obvious temperature rise, its cycle life significant prolongation; Battery core has PE bag, makes its copper shell shell not charged, after assembling, can improve the reliability and security of power brick.
The utility model is by preferred embodiment having carried out detailed explanation.But, by studying carefully above, concerning the change of each execution mode with to increase be apparent for one of ordinary skill in the art.Being intended that these changes all and increasing of applicant has all dropped in scope that the utility model claim protects.
Claims (5)
1. a continuous reeling secondary cell, it is characterized in that: comprise metal-back and be positioned at the battery core of metal-back, also comprise metal cover board battery core be encapsulated in described metal-back, also comprise the insulating support being positioned at metal-back, wherein, described battery core comprises continuous reeling positive plate together, negative plate, between positive plate and negative plate, be provided with dielectric film, wherein, the side of described positive plate, negative plate is extended with anode ear, negative electrode lug respectively; Described anode ear, negative electrode lug are respectively arranged with through hole; Described insulating support is provided with positive terminal brace, negative terminal brace, together with described anode ear and positive terminal brace are fixed on by rivet riveting, together with described negative electrode lug and negative terminal brace are fixed on by rivet riveting.
2. secondary cell according to claim 1, is characterized in that: be also provided with aluminium riveted joint compressing tablet, and described aluminium riveted joint compressing tablet, anode ear, the riveting of positive terminal brace fix on together.
3. secondary cell according to claim 2, it is characterized in that: aluminium riveted joint compressing tablet, anode ear, positive terminal brace are respectively arranged with multiple, described aluminium riveted joint compressing tablet, anode ear, positive terminal brace, aluminium riveted joint compressing tablet, positive terminal brace, anode ear, aluminium riveted joint compressing tablet successively riveting fix on together.
4. secondary cell according to claim 1, is characterized in that: be also provided with copper riveted joint compressing tablet, and described copper riveted joint compressing tablet, negative electrode lug, the riveting of negative terminal brace fix on together.
5. secondary cell according to claim 4, it is characterized in that: described copper riveted joint compressing tablet, negative electrode lug, negative terminal brace are respectively arranged with multiple, described copper riveted joint compressing tablet, negative electrode lug, negative terminal brace, copper riveted joint compressing tablet, negative terminal brace, negative electrode lug, copper riveted joint compressing tablet successively riveting fix on together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520535442.6U CN204857836U (en) | 2015-07-22 | 2015-07-22 | Secondary cell in succession convolutes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520535442.6U CN204857836U (en) | 2015-07-22 | 2015-07-22 | Secondary cell in succession convolutes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204857836U true CN204857836U (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520535442.6U Active CN204857836U (en) | 2015-07-22 | 2015-07-22 | Secondary cell in succession convolutes |
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| CN (1) | CN204857836U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106356587A (en) * | 2016-11-25 | 2017-01-25 | 江西迪比科股份有限公司 | New energy power batter |
| CN106356586A (en) * | 2016-11-25 | 2017-01-25 | 江西迪比科股份有限公司 | Heat dissipation and heating integrated power battery module |
| CN106410324A (en) * | 2016-11-25 | 2017-02-15 | 江西迪比科股份有限公司 | Water-cooled new energy power battery |
| CN108232367A (en) * | 2016-12-15 | 2018-06-29 | 河南科隆汽车散热器有限公司 | A kind of new energy car battery group heat converter structure |
-
2015
- 2015-07-22 CN CN201520535442.6U patent/CN204857836U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106356587A (en) * | 2016-11-25 | 2017-01-25 | 江西迪比科股份有限公司 | New energy power batter |
| CN106356586A (en) * | 2016-11-25 | 2017-01-25 | 江西迪比科股份有限公司 | Heat dissipation and heating integrated power battery module |
| CN106410324A (en) * | 2016-11-25 | 2017-02-15 | 江西迪比科股份有限公司 | Water-cooled new energy power battery |
| CN108232367A (en) * | 2016-12-15 | 2018-06-29 | 河南科隆汽车散热器有限公司 | A kind of new energy car battery group heat converter structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170321 Address after: 344000 Jiangxi province Fuzhou City Jinchao Economic Development Zone, hi tech Industrial Park Patentee after: JIANGXI DBK CO., LTD. Patentee after: Shenzhen DBK Electronics Co., Ltd. Address before: 344000 Jiangxi province Fuzhou City Jinchao Economic Development Zone, hi tech Industrial Park Patentee before: JIANGXI DBK CO., LTD. |
|
| TR01 | Transfer of patent right |