CN203423225U - Lithium-ion battery pack - Google Patents
Lithium-ion battery pack Download PDFInfo
- Publication number
- CN203423225U CN203423225U CN201320372464.6U CN201320372464U CN203423225U CN 203423225 U CN203423225 U CN 203423225U CN 201320372464 U CN201320372464 U CN 201320372464U CN 203423225 U CN203423225 U CN 203423225U
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- Prior art keywords
- lug
- ion battery
- lithium ion
- battery group
- connecting plate
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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
A lithium-ion battery pack comprises a unit box, pole lug connecting plates and a plurality of unit cells or batteries, wherein positive pole lugs and negative pole lugs are arranged on same sides of the plurality of unit cells or the batteries; the plurality of unit cells or the batteries are assembled inside the unit box; and a plurality of pole lug connecting structures are arranged on the pole lug connecting plates and connected with the positive pole lugs and the negative pole lugs in a welding manner or a hot melting manner respectively to form an integrated conductive structure. The lithium-ion battery pack can improve the assembly work efficiency of the battery pack and is good in batch stability and conductivity, simple to install, capable of reducing the battery weight, increasing the battery energy density and overcoming the defects that the assembly is complicated, the additional weight is heavy and the like in the prior art, neat in appearance, convenient and rapid to assemble and applicable to large-scale continuous production and production of high-energy-density lithium battery packs with the higher battery batch stability requirement.
Description
Technical field
The utility model relates to a kind of lithium ion battery group, particularly a kind of lithium ion battery group that becomes battery pack by lug connecting plate connection cell.
Background technology
In modern electric automobile is produced, need to use a large amount of battery pack, need to carry out parallel connection and series connection to monomer battery core or battery pack when reaching the high voltage of battery and high power capacity.Conventional battery pack is comprised of battery cell box, battery core, lug fixed head, lug pad, screw at present, wherein the connection between lug adopts screw to be fixed on lug pad and fixed head through lug hole slot, and will on screw, brush bonding and paint and prevent that screw from coming off.The process that assembles of this mode is very loaded down with trivial details, battery pack need to be used a large amount of lug fixed heads, pad and screw, the bonding paint that uses also has certain corrosion to battery pole ear, and these connection devices have also increased the additional weight of battery pack, are equivalent to reduce energy density.And this packaging technology inefficiency, loaded down with trivial details in operation.The drawback of bringing for solving this connected mode, needs a kind of more practical lug connected mode to promote existing mounting technology.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of lithium ion battery group that becomes battery pack by lug connecting plate connection cell.
To achieve these goals, the utility model provides a kind of lithium ion battery group, comprise monomer box, lug connecting plate and a plurality of monomer battery core or battery, the same side of described a plurality of monomer battery core or battery is provided with anode ear and negative electrode lug, described a plurality of monomer battery core or battery pack are loaded in described monomer box, wherein, on described lug connecting plate, be provided with a plurality of electrode tab connection structures, described electrode tab connection structure is connected with negative pole lug welding with described anode ear respectively or hot melt is connected to form monolithic conductive structure.
Above-mentioned lithium ion battery group, wherein, described electrode tab connection structure is connected to respectively the positive pole of described lithium ion battery group with described anode ear, and described electrode tab connection structure is connected to respectively the negative pole of described lithium ion battery group with described negative electrode lug.
Above-mentioned lithium ion battery group, wherein, between described a plurality of electrode tab connection structure, be respectively arranged with connection plane, described electrode tab connection structure comprises first fold face and the second folding face with an angle, one end of described first fold face is connected with one end of described the second folding face, the other end of the other end of described first fold face and described the second folding face connects respectively at described connection plane, and described positive and negative lug is connected between described first fold face and described the second folding face.
Above-mentioned lithium ion battery group, wherein, the angle between described first fold face and described the second folding face is less than 30 degree.
Above-mentioned lithium ion battery group, wherein, the upper surface of described lug connecting plate is also provided with insulating barrier, and the lower surface of described lug connecting plate is also provided with conductive layer.
Above-mentioned lithium ion battery group, wherein, described lug connecting plate is silver, copper, gold, aluminium, receive, at least one material or several composite material materials and parts in molybdenum, tungsten, zinc, nickel, iron, platinum, tin, lead.
Above-mentioned lithium ion battery group, wherein, described lug connecting plate is silver, copper, gold, aluminium, receive, the composite material part of two or more material in molybdenum, tungsten, zinc, nickel, iron, platinum, tin, lead.
Above-mentioned lithium ion battery group, wherein, 50%～300% of the thickness that the thickness of described lug connecting plate is described lug.
Above-mentioned lithium ion battery group, wherein, described monomer battery core is plastic-aluminum flexible packing structure.
Above-mentioned lithium ion battery group, wherein, described anode ear and negative electrode lug are connected in parallel or are connected in series by described electrode tab connection structure.
Technique effect of the present utility model is:
The utility model connects by lug connecting plate the lithium ion battery that cell becomes battery pack, can promote battery pack assembly working efficiency, batch good stability, good conductivity is in the now conventional method that is screwed lug, install simple, and alleviated battery weight and promoted energy content of battery density, solved the shortcomings such as prior art assembling is loaded down with trivial details, and impost is many.By lug connecting plate, the lug of several batteries or battery pack can be connected with welding, hot melting way.Outward appearance is clean and tidy, and good conductivity is assembled convenient quick.Be applicable to large-scale continuous production and the higher high-energy density lithium battery pack of battery batch stability is produced.
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail, but not as to restriction of the present utility model.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model one embodiment;
Fig. 2 is the structural representation of lug connecting plate in Fig. 1;
Fig. 3 is the cross sectional view of lug connecting plate in Fig. 2;
Fig. 4 is the lug connecting plate of the utility model one embodiment and the connection diagram of lug.
Wherein, Reference numeral
1 monomer box 2 lug connecting plates
3 monomer battery core 4 anode ears
5 negative electrode lug 6 electrode tab connection structures
7 monolithic conductive structure 8 positive poles
9 negative poles 10 connect plane
11 first fold face 12 second folding faces
13 insulating barrier 14 conductive layers
Embodiment
Below in conjunction with accompanying drawing, structural principle of the present utility model and operation principle are described in detail, referring to Fig. 1-Fig. 4, Fig. 1 is the structural representation of the utility model one embodiment, and Fig. 4 is the lug connecting plate of the utility model one embodiment and the connection diagram of lug.Lithium ion battery group of the present utility model, comprise monomer box 1, lug connecting plate 2 and a plurality of monomer battery core 3 or battery, the same side of described a plurality of monomer battery core 3 or battery is provided with positive and negative lug 4,5, described a plurality of monomer battery core 3 or battery pack are loaded in described monomer box 1, on described lug connecting plate 2, be provided with a plurality of electrode tab connection structures 6, described electrode tab connection structure 6 is welded to connect with described positive and negative lug 4,5 respectively or hot melt is connected to form monolithic conductive structure 7.The described monomer battery core 3 of the present embodiment is plastic-aluminum flexible packing structure.
Wherein, described electrode tab connection structure 6 is connected to respectively the positive pole 8 of described lithium ion battery group with described anode ear 4, and described electrode tab connection structure 6 is connected to respectively the negative pole 9 of described lithium ion battery group with described negative electrode lug 5.
Referring to Fig. 2, Fig. 3, Fig. 2 is the structural representation of lug connecting plate in Fig. 1, Fig. 3 is the cross sectional view of lug connecting plate in Fig. 2. between described a plurality of electrode tab connection structures 6, is respectively arranged with and connects plane 10, described electrode tab connection structure 6 comprises first fold face 11 and the second folding face 12 with an angle, one end of described first fold face 11 is connected with one end of described the second folding face 12, the other end of the other end of described first fold face 11 and described the second folding face 12 connects respectively at described connection plane 10, just described, negative electrode lug 4, 5 are connected between described first fold face 11 and described the second folding face 12.Wherein, the angle between described first fold face 11 and described the second folding face 12 is less than 30 degree.In the present embodiment, the upper surface of described lug connecting plate 2 also can be provided with insulating barrier 13, and described lug connecting plate 2 can scribble insulating material on conducting metal upper strata, in case the direct exposed short circuit easily causing of positive and negative electrode 8,9.The lower surface of described lug connecting plate 2 is also provided with conductive layer 14.Described lug connecting plate 2 is preferably silver, copper, gold, aluminium, receives, at least one material or several composite material materials and parts in molybdenum, tungsten, zinc, nickel, iron, platinum, tin, lead.Or, described lug connecting plate 2 for silver, copper, gold, aluminium, receive, the composite material part of two or more material in molybdenum, tungsten, zinc, nickel, iron, platinum, tin, lead.The thickness of described lug connecting plate 2 be preferably described lug thickness 50%～300%.
In the present embodiment, described positive and negative lug 4,5 can be connected in parallel or be connected in series by described electrode tab connection structure 6.
Described battery voltage is between 5-65V.Described lug connecting plate 2 can connect electrode in parallel, series connection electrode, can also complete the connection between battery pack.
In the present embodiment, monomer battery core 3 or battery compose in parallel battery pack by 6, battery core is plastic-aluminum flexible packing, lug in battery core is connected by spot welding with lug connecting plate 2, and whole battery pack is used two lug connecting plates 2 to weld with 6 anode ears 4 and 6 negative electrode lugs 5 positive pole 8 and the negative pole 9 that forms battery pack respectively.The utility model assembling is simple, has saved the needed lug fixed head of original connecting tab, pad, screw and binding agent.Alleviate battery weight and assembling difficulty, promoted the energy density of battery pack, be conducive to the rapid-assembling of producing continuously lithium ion battery group in enormous quantities.This lithium ion battery forms battery pack side by side by lithium-ion electric core, and the lug in battery pack battery core is welded to connect by a kind of lug web.It is a kind of monolithic conductive sheet by a plurality of tab weldings that this lug connecting plate can not used the jockeys such as screw, sound construction, and conductivity is strong, has improved make efficiency.
Certainly; the utility model also can have other various embodiments; in the situation that not deviating from the utility model spirit and essence thereof; those of ordinary skill in the art are when making various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.
Claims (8)
1. a lithium ion battery group, comprise monomer box, lug connecting plate and a plurality of monomer battery core or battery, the same side of described a plurality of monomer battery core or battery is provided with anode ear and negative electrode lug, described a plurality of monomer battery core or battery pack are loaded in described monomer box, it is characterized in that, on described lug connecting plate, be provided with a plurality of electrode tab connection structures, described electrode tab connection structure is connected with negative pole lug welding with described anode ear respectively or hot melt is connected to form monolithic conductive structure.
2. lithium ion battery group as claimed in claim 1, it is characterized in that, described electrode tab connection structure is connected to respectively the positive pole of described lithium ion battery group with described anode ear, described electrode tab connection structure is connected to respectively the negative pole of described lithium ion battery group with described negative electrode lug.
3. lithium ion battery group as claimed in claim 1 or 2, it is characterized in that, between described a plurality of electrode tab connection structure, be respectively arranged with connection plane, described electrode tab connection structure comprises first fold face and the second folding face with an angle, one end of described first fold face is connected with one end of described the second folding face, the other end of the other end of described first fold face and described the second folding face connects respectively at described connection plane, and described anode ear and described negative electrode lug are connected between described first fold face and described the second folding face.
4. lithium ion battery group as claimed in claim 3, is characterized in that, the angle between described first fold face and described the second folding face is less than 30 degree.
5. the lithium ion battery group as described in claim 1,2 or 4, is characterized in that, the upper surface of described lug connecting plate is also provided with insulating barrier, and the lower surface of described lug connecting plate is also provided with conductive layer.
6. the lithium ion battery group as described in claim 1,2 or 4, is characterized in that 50%～300% of the thickness that the thickness of described lug connecting plate is described lug.
7. the lithium ion battery group as described in claim 1,2 or 4, is characterized in that, described monomer battery core is plastic-aluminum flexible packing structure.
8. lithium ion battery group as claimed in claim 1, is characterized in that, described anode ear and described negative electrode lug are connected in parallel or are connected in series by described electrode tab connection structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320372464.6U CN203423225U (en) | 2013-06-26 | 2013-06-26 | Lithium-ion battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320372464.6U CN203423225U (en) | 2013-06-26 | 2013-06-26 | Lithium-ion battery pack |
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| Publication Number | Publication Date |
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| CN203423225U true CN203423225U (en) | 2014-02-05 |
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| CN201320372464.6U Expired - Fee Related CN203423225U (en) | 2013-06-26 | 2013-06-26 | Lithium-ion battery pack |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106207069A (en) * | 2016-08-30 | 2016-12-07 | 广州梁氏通讯电器有限公司 | A kind of a kind of method that battery and polymer soft electric core are connected in parallel |
| CN105870510B (en) * | 2016-05-31 | 2018-05-25 | 华霆（合肥）动力技术有限公司 | A kind of soft package lithium battery with no-welding structure |
| CN108469598A (en) * | 2018-02-28 | 2018-08-31 | 北京国能电池科技股份有限公司 | A kind of method and apparatus of battery dynamic pressure drop compensation |
| JP2019096592A (en) * | 2017-11-22 | 2019-06-20 | 寧徳時代新能源科技股▲分▼有限公司Ｃｏｎｔｅｍｐｏｒａｒｙ Ａｍｐｅｒｅｘ Ｔｅｃｈｎｏｌｏｇｙ Ｃｏ．， Ｌｉｍｉｔｅｄ | Electrode member, electrode unit and charging battery |
| WO2024060403A1 (en) * | 2022-09-21 | 2024-03-28 | 江苏时代新能源科技有限公司 | Battery cell, battery, electric apparatus and welding device |
-
2013
- 2013-06-26 CN CN201320372464.6U patent/CN203423225U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870510B (en) * | 2016-05-31 | 2018-05-25 | 华霆（合肥）动力技术有限公司 | A kind of soft package lithium battery with no-welding structure |
| CN106207069A (en) * | 2016-08-30 | 2016-12-07 | 广州梁氏通讯电器有限公司 | A kind of a kind of method that battery and polymer soft electric core are connected in parallel |
| CN106207069B (en) * | 2016-08-30 | 2018-08-31 | 广州明美新能源有限公司 | A kind of battery and a kind of method that polymer soft electric core is connected in parallel |
| JP2019096592A (en) * | 2017-11-22 | 2019-06-20 | 寧徳時代新能源科技股▲分▼有限公司Ｃｏｎｔｅｍｐｏｒａｒｙ Ａｍｐｅｒｅｘ Ｔｅｃｈｎｏｌｏｇｙ Ｃｏ．， Ｌｉｍｉｔｅｄ | Electrode member, electrode unit and charging battery |
| US10804526B2 (en) | 2017-11-22 | 2020-10-13 | Contemporary Amperex Techology Co., Limited | Electrode member, electrode assembly and rechargeable battery |
| CN108469598A (en) * | 2018-02-28 | 2018-08-31 | 北京国能电池科技股份有限公司 | A kind of method and apparatus of battery dynamic pressure drop compensation |
| WO2024060403A1 (en) * | 2022-09-21 | 2024-03-28 | 江苏时代新能源科技有限公司 | Battery cell, battery, electric apparatus and welding device |
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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: 20140205 Termination date: 20200626 |
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| CF01 | Termination of patent right due to non-payment of annual fee |