CN102306739A - Battery grouping and connecting method and battery pack - Google Patents
Battery grouping and connecting method and battery pack Download PDFInfo
- Publication number
- CN102306739A CN102306739A CN201110309515A CN201110309515A CN102306739A CN 102306739 A CN102306739 A CN 102306739A CN 201110309515 A CN201110309515 A CN 201110309515A CN 201110309515 A CN201110309515 A CN 201110309515A CN 102306739 A CN102306739 A CN 102306739A
- Authority
- CN
- China
- Prior art keywords
- battery
- cell
- connecting method
- lug
- negative electrode
- 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.)
- Pending
Links
Images
Classifications
-
- 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
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a battery grouping and connecting method which comprises the following steps: setting the upper end surface and the lower end surface of each monomer battery into a positive electrode and a negative electrode of each monomer battery, and setting metal connecting plates which are vertical to the upper end surface and the lower end surface on the positive electrode and the negative electrode of each monomer battery as a positive electrode lug and a negative electrode lug; placing a plurality of the monomer batteries side by side, wherein the positive electrode lug and the negative electrode lug of each monomer battery are bent for 90 degrees; and welding the positive electrode lugs and the negative electrode lugs of the adjacent monomer batteries together according to the serial connection way. By adopting the battery grouping and connecting method, the usage amount of electric wires or bolts can be reduced as far as possible, the reliable and stable connection of the monomer batteries can be realized, and the safety use problem of the lithium ion batteries is solved; and the grouping method is very convenient and simple, and is conductive to maintaining, the service life of the battery is prolonged fully; the grouping method is suitable for the charge and discharge of vehicles, and can play a very important impelling role in industrialization, environmental protection and high-technicalization of domestic electric automobiles.
Description
Technical field
The present invention relates to a kind of connecting method of grouped of lithium ion battery, more specifically relate to a kind of flexible packing lithium ion battery method of attachment in groups of electric motor car and battery pack that forms in this way of being used for.
Background technology
Increasingly serious along with the energy and environmental problem; Under the promotion in industrial policies such as energy-saving and emission-reduction, green credit, green security and market; Electric automobile gradually cause the society and the attention of government, electric automobile also will become a big branch of following automobile industry.One of electric automobile core technology is a battery system.And whether available the group technology of battery be this system of decision key problem in technology.
From existing battery technology and cost consideration, lithium ion battery is suitable for electric automobile most at present, so the influence on development of lithium ion battery electric automobile development trend from now on.This also allows the application of lithium ion battery progressively expand to high-power products such as electric automobile from the small-power product of traditional portable formula consumer electronics.The electric core quantity of using in the product becomes tens present joints by 1 joint or a few joint in past, even the hundreds of joint.
Yet, the group technology of lithium ion battery, application technologies such as charging in groups, discharge and maintenance management do not obtain due attention, cause the application technology of lithium ion battery seriously to lag behind the development of electric core technology.The energy resource system of existing electric automobile generally all adopts the capacity that the mode of more piece electricity core parallel connection and serial connection is expanded battery, improves the voltage of battery.The mounting means that wherein has is that more piece electricity core directly is placed in the battery case, because that battery lacks is necessary fixing, outside vibrations are easy to make the battery pack job insecurity, and it is unreliable etc. to be electrically connected such as battery distortion, battery; Also have more piece electricity core closely is fixed together, though this mode has solved the problem of battery antidetonation to a certain extent, more piece electricity core squeezes and sticks together, and is unfavorable for the heat radiation that electric core discharges and recharges, and influences the job stability of battery pack equally.Therefore, press for a kind of method that can realize reliable connection between electric core of developing.On the other hand, the quantity demand to battery of different manufacturers is different, so just need just change relevant design according to different product, so just will inevitably increase the development cost of mould, so the modularized design of lithium battery assembling also is the problem that needs consideration.
Summary of the invention
To the deficiency of above-mentioned prior art, the purpose of this invention is to provide a kind of connecting method of grouped that connects reliable and stable, easy to assembly, the lithium ion battery that is beneficial to maintenance.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of connecting method of grouped batteries; Be used for several cells are connected into battery pack; It comprises the steps: the upper and lower end face of cell is arranged to the positive and negative electrode of cell, and metal connecting sheet perpendicular to upper and lower end face is set as the positive and negative electrode lug on the positive and negative electrode of cell; A plurality of cells are placed side by side, and make the positive and negative electrode lug of each cell bend 90 °, weld together according to positive pole ear, the negative lug of series system then the adjacent monomer battery.
Preferably, said cell is provided with the battery frame that adapts with its shape, and four angles of said cell are provided with location hole, and said battery frame is connected with said battery frame through said location hole.
Preferably, said battery frame comprises a front baffle and an afterframe, and four angles of said front baffle, afterframe are provided with reference column and trip.
Preferably, lug protective sleeve on the said battery frame, said lug protective sleeve is used for the electrode of lead fixed at cell.
Preferably, said positive pole ear, negative lug weld together through ultrasonic bond.
Preferably, four cell series connection form a submodule, and a plurality of submodule series connection form a macrocell group.
Preferably, four cells of same submodule are fixed on the thermal insulation board through copper nut, and the positive pole ear of each other series connection bends with negative lug and stacks.
Preferably, described positive and negative electrode lug pole piece.
Preferably, said cell is a lithium battery.
The present invention also will protect a kind of battery pack that adopts above-mentioned any method to form.
Technique scheme has following beneficial effect: adopt such connecting method of grouped batteries; Owing to can reduce the use amount of electric wire or bolt as far as possible; Therefore, can realize reliable, the stable connection of cell, this has also solved the safe handling problem of lithium battery equally.So on the one hand, can save electric power, reduce national requirements of green environmental protection; On the other hand, such burst mode is very convenient succinct, is beneficial to maintenance, has prolonged the life-span of battery fully, is fit to charging, the discharge of vehicle, has further satisfied the requirement of New-energy electric vehicle; Domestic electric vehicle industrialization, greenization and high-newization have been played important progradation.
Description of drawings
Fig. 1 is the structural representation of a cell of the present invention.
Fig. 2 is the structural representation of another cell of the present invention.
Fig. 3 is the structural representation of battery frame of the present invention.
Fig. 4 is the positive structural representation of embodiment of the invention front baffle.
Fig. 5 is the structural representation of embodiment of the invention front baffle reverse side.
Fig. 6 is the positive structural representation of embodiment of the invention afterframe.
Fig. 7 is the structural representation of embodiment of the invention afterframe reverse side.
Fig. 8 is the structural representation of embodiment of the invention little module.
Fig. 9 is the structural representation of embodiment of the invention lug protective sleeve.
Figure 10 is the structural representation of embodiment of the invention macrocell group.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described in detail.
As shown in Figure 1, the upper surface 2 of cell 1 is set to positive pole, its lower surface 3 is set to negative pole, the positive pole ear 4 of vertical upper face 2 is set, the negative lug 5 of vertical lower surface 3 is set at negative pole at positive pole.With positive pole ear 4 along the upper surface 2 direction bending, 90 degree, and with negative lug 5 along the lower surface 3 the direction direction bending 90 opposite with positive pole ear 4 wrap direction spend.
For cell is together in series; As shown in Figure 2 the positive pole ear 4 ' and the also vertical bending 90 of negative lug 5 ' of another piece cell 1 ' are spent; But different is, the positive pole ear 4 of the positive pole ear 4 ' of second cell 1 ' and the wrap direction of negative lug 5 ' and first battery 1 is opposite with the wrap direction of negative lug 5.The positive pole ear 4 of first battery 1 and the negative lug 5 ' of second battery 1 ' are laminated, use ultrasonic bond that it is welded then.
Order successively, the mode that adopts the negative pole of this positive pole and next piece battery with a battery to couple together just can be together in series any polylith cell.Four cell welding series connection can form a submodule, and a plurality of submodules can form a macrocell group through the bolt series connection.Mode such as utilization ultrasonic bond, bolt and nut etc. in succession couple together laminating partly of electrode connecting piece closely.This connected mode can make between the cell and to connect stablely more, reliable, prevents to produce loosening, can reduce battery and directly contact internal resistance, prevents that battery from producing heat radiation loosening and that improve battery, keeps the maximum benefit of battery.
According to foregoing, according to reference to description of drawings the method to connecting between the cell.Like Fig. 1, shown in 2, be provided with location hole 6 at each cell four jiaos; As shown in Figure 3, fasten battery according to the location aperture according to standard design battery frame 7, battery frame should have the structure that matches with the cell profile, can guarantee that cell is not influenced by external force, produces to become flexible, and guarantees the relatively uniform of monomer battery location.
Design the battery frame of each cell as requested, shown in Fig. 4 to 7, battery frame 7 is divided into front baffle 8 and afterframe 9; Four angles of front baffle 8, afterframe 9 are provided with reference column 10, and reference column 10 can guarantee that each cell can accurately locate and can not be shifted; Positive and negative electrode sign 11,12 is arranged on front baffle 8, the afterframe 9, help for assembling provides intuitively; Simultaneously, front baffle 8, afterframe 9 directly use trip 13 designs, and each cell is clamped locking.Battery frame 7 is processed by materials such as PP, GF.Described material has very good toughness, have high temperature resistant, anti-high pressure, fire protecting performance is outstanding, safety anti-explosive, the sealing of ventilating, advantages such as heat conductive insulating.Security performance to battery has played very good effect.
Connecting four batteries with series system below with reference to accompanying drawings is that example illustrates concrete connection side of the present invention.
As shown in Figure 8, four cells are connected in twos, then side by side together, will become the positive and negative electrode lug of Battery pack to overlap together again according to wrap direction with four batteries according to top two battery strings linked methods.In order to guarantee the reliable connection of the positive and negative electrode lug between the cell, can on the battery of marshalling, be embedded on the thermal insulation board afterwards through copper nut.
As shown in Figure 9, place lug protective sleeve 14 above the cell, the utilization mosaic mode is fixed on lug protective sleeve 14 on the battery frame.Lug protective sleeve 14 is designed with deposits the wire casing of gathering line, and lug protective sleeve 14 can connect the lead of cell and be fixed on the electrode, and uses the cover plate of both sides will become the exposed part of Battery pack to adequately protect, and prevents short circuit phenomenon.
Though the method for with reference to accompanying drawing four cells having been connected has been carried out detailed explanation as stated,, the present invention not only just is confined to the series system of four batteries.According to top said, any amount of cell can also be connected in series.According to the present invention, can realize the assembling of superposing type to cell, such as devices such as utilization battery frames several cells are formed a monomer group as submodule.As shown in Figure 8, connecting with four cells of expression get up to be formed a monomer group as submodule exactly, and what represent like Fig. 8 is the battery group of four batteries.As shown in figure 10, use bolt to connect again four such submodules are together in series, just can form a macrocell group, in addition, can also a plurality of such macrocell groups are placed side by side, form a more large-scale battery pack.
Adopt such connecting method of grouped batteries, owing to can reduce the use amount of electric wire or bolt as far as possible, therefore, can realize reliable, the stable connection of cell, this has also solved the safe handling problem of lithium battery equally.So on the one hand, can save electric power, reduce national requirements of green environmental protection; On the other hand, such burst mode is very convenient succinct, is beneficial to maintenance, has prolonged the life-span of battery fully, is fit to charging, the discharge of vehicle, has further satisfied the requirement of New-energy electric vehicle; Domestic electric vehicle industrialization, greenization and high-newization have been played important progradation.
More than a kind of connecting method of grouped batteries and battery pack that the embodiment of the invention provided have been carried out detailed introduction; For one of ordinary skill in the art; Thought according to the embodiment of the invention; Part all can change on embodiment and range of application; In sum; This description should not be construed as limitation of the present invention, and all any changes of making according to design philosophy of the present invention are all within protection scope of the present invention.
Claims (10)
1. a connecting method of grouped batteries is used for several cells are connected into battery pack, it is characterized in that,
It comprises the steps:
The upper and lower end face of cell is arranged to the positive and negative electrode of cell, and metal connecting sheet perpendicular to upper and lower end face is set on the positive and negative electrode of cell as the positive and negative electrode lug;
A plurality of cells are placed side by side, and make the positive and negative electrode lug of each cell bend 90 °, weld together according to positive pole ear, the negative lug of series system then the adjacent monomer battery.
2. connecting method of grouped batteries according to claim 1; It is characterized in that: said cell is provided with the battery frame that adapts with its shape; Four angles of said cell are provided with location hole, and said battery frame is connected with said battery frame through said location hole.
3. connecting method of grouped batteries according to claim 2 is characterized in that: said battery frame comprises a front baffle and an afterframe, and four angles of said front baffle, afterframe are provided with reference column and trip.
4. connecting method of grouped batteries according to claim 2 is characterized in that: lug protective sleeve on the said battery frame, said lug protective sleeve is used for the electrode of lead fixed at cell.
5. connecting method of grouped batteries according to claim 1 is characterized in that: said positive pole ear, negative lug weld together through ultrasonic bond.
6. connecting method of grouped batteries according to claim 1 is characterized in that: four cell series connection form a submodule, and a plurality of submodule series connection form a macrocell group.
7. connecting method of grouped batteries according to claim 6 is characterized in that: four cells of same submodule are fixed on the thermal insulation board through copper nut, and the positive pole ear of each other series connection bends with negative lug and stacks.
8. connecting method of grouped batteries according to claim 1 is characterized in that: described positive and negative electrode lug pole piece.
9. connecting method of grouped batteries according to claim 1 is characterized in that: said cell is a lithium battery.
10. battery pack that forms according to any one said connecting method of grouped batteries of claim 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110309515A CN102306739A (en) | 2011-10-13 | 2011-10-13 | Battery grouping and connecting method and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110309515A CN102306739A (en) | 2011-10-13 | 2011-10-13 | Battery grouping and connecting method and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102306739A true CN102306739A (en) | 2012-01-04 |
Family
ID=45380571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110309515A Pending CN102306739A (en) | 2011-10-13 | 2011-10-13 | Battery grouping and connecting method and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102306739A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104377382A (en) * | 2014-12-09 | 2015-02-25 | 河南锂动电源有限公司 | Method for bending two spliced roll core electrode lugs of flexible-package lithium battery |
| CN103474692B (en) * | 2012-06-07 | 2015-07-01 | 深圳市海盈科技有限公司 | Lithium ion battery pack and assembly method of lithium ion battery pack |
| CN105449145A (en) * | 2014-09-26 | 2016-03-30 | 中信国安盟固利动力科技有限公司 | Tab laser welding structure of lithium ion battery |
| CN105489946A (en) * | 2015-12-04 | 2016-04-13 | 天能电池集团（安徽）有限公司 | Electric vehicle battery |
| CN106450099A (en) * | 2016-12-19 | 2017-02-22 | 苏州格瑞动力电源科技有限公司 | Lithium battery pack sleeve clamp |
| WO2019015026A1 (en) * | 2017-07-21 | 2019-01-24 | 中车青岛四方车辆研究所有限公司 | Encapsulated flexibly packaged capacitor module and system |
| CN110444722A (en) * | 2019-08-06 | 2019-11-12 | 珠海格力电器股份有限公司 | Battery monomer, battery pack and battery pack |
| CN112234244A (en) * | 2020-04-30 | 2021-01-15 | 蜂巢能源科技有限公司 | Lithium ion battery |
| US11605858B2 (en) | 2018-01-18 | 2023-03-14 | Byd Company Limited | Battery, battery pack, and vehicle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101140983A (en) * | 2006-09-08 | 2008-03-12 | Nec东金株式会社 | Method for production of stacked battery |
| CN101894968A (en) * | 2010-06-30 | 2010-11-24 | 中国电力科学研究院 | Novel battery module |
-
2011
- 2011-10-13 CN CN201110309515A patent/CN102306739A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101140983A (en) * | 2006-09-08 | 2008-03-12 | Nec东金株式会社 | Method for production of stacked battery |
| CN101894968A (en) * | 2010-06-30 | 2010-11-24 | 中国电力科学研究院 | Novel battery module |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474692B (en) * | 2012-06-07 | 2015-07-01 | 深圳市海盈科技有限公司 | Lithium ion battery pack and assembly method of lithium ion battery pack |
| CN105449145A (en) * | 2014-09-26 | 2016-03-30 | 中信国安盟固利动力科技有限公司 | Tab laser welding structure of lithium ion battery |
| CN105449145B (en) * | 2014-09-26 | 2018-05-29 | 中信国安盟固利动力科技有限公司 | A kind of lug laser welding structure of lithium ion battery |
| CN104377382A (en) * | 2014-12-09 | 2015-02-25 | 河南锂动电源有限公司 | Method for bending two spliced roll core electrode lugs of flexible-package lithium battery |
| CN104377382B (en) * | 2014-12-09 | 2016-08-24 | 河南锂动电源有限公司 | Flexible packing lithium ion battery two spells core lug bending method |
| CN105489946B (en) * | 2015-12-04 | 2018-04-20 | 天能电池集团（安徽）有限公司 | Battery of electric vehicle |
| CN105489946A (en) * | 2015-12-04 | 2016-04-13 | 天能电池集团（安徽）有限公司 | Electric vehicle battery |
| CN106450099A (en) * | 2016-12-19 | 2017-02-22 | 苏州格瑞动力电源科技有限公司 | Lithium battery pack sleeve clamp |
| WO2019015026A1 (en) * | 2017-07-21 | 2019-01-24 | 中车青岛四方车辆研究所有限公司 | Encapsulated flexibly packaged capacitor module and system |
| US10825615B2 (en) | 2017-07-21 | 2020-11-03 | Crrc Qingdao Sifang Rolling Stock Research Institute Co., Ltd. | Hard-shell flexibly-packaged capacitor module and system |
| US11605858B2 (en) | 2018-01-18 | 2023-03-14 | Byd Company Limited | Battery, battery pack, and vehicle |
| CN110444722A (en) * | 2019-08-06 | 2019-11-12 | 珠海格力电器股份有限公司 | Battery monomer, battery pack and battery pack |
| CN112234244A (en) * | 2020-04-30 | 2021-01-15 | 蜂巢能源科技有限公司 | Lithium ion battery |
| CN112234244B (en) * | 2020-04-30 | 2022-05-20 | 蜂巢能源科技有限公司 | Lithium ion battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102306739A (en) | Battery grouping and connecting method and battery pack | |
| CN204857898U (en) | Battery module , group battery and including device of this group battery | |
| CN101490871B (en) | Middle or large-sized battery module | |
| CN102306717B (en) | Lithium ion power battery pack for electric automobile and manufacturing method of lithium ion power battery pack | |
| CN102696131B (en) | Battery modules and power brick | |
| CN102447081B (en) | Battery pack supporting frame | |
| CN201160085Y (en) | Large-scale lithium ion power battery pack | |
| CN202384436U (en) | Close-packing lithium-ion battery pack | |
| CN203774391U (en) | Battery module with flexible electrode position | |
| CN108198989A (en) | Connecting member and rechargeable battery | |
| CN106104855B (en) | Battery module including the voltage sensing component with receptacle structure | |
| CN101944638A (en) | Manufacturing method of lithium-ion battery pack used for electric automobile | |
| CN203326063U (en) | Battery module with temperature control function | |
| CN201570548U (en) | Lithium battery module with high-efficiency heat exchange structure | |
| CN202127063U (en) | Lithium-ion power battery pack for vehicle | |
| CN204303929U (en) | Novel high-capacity soft package lithium battery group | |
| CN105556318A (en) | Voltage sensing assembly and battery module including same | |
| CN105449145A (en) | Tab laser welding structure of lithium ion battery | |
| CN204696185U (en) | A kind of poly-lithium battery module of balance charge/discharge and comprise its battery module | |
| CN205680725U (en) | A kind of power battery module structure | |
| CN205429046U (en) | Battery frame frame and battery frame frame subassembly and battery module | |
| CN102055027A (en) | Common module for lithium ion batteries | |
| CN203721834U (en) | Lithium ion battery module with high-safety connection structure | |
| CN204230338U (en) | A kind of lug laser welding structure of lithium ion battery and the battery pack of formation thereof | |
| CN212695244U (en) | Battery and battery module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120104 |