CN105428585A - Lithium ion battery module - Google Patents

Lithium ion battery module Download PDF

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Publication number
CN105428585A
CN105428585A CN201510968086.1A CN201510968086A CN105428585A CN 105428585 A CN105428585 A CN 105428585A CN 201510968086 A CN201510968086 A CN 201510968086A CN 105428585 A CN105428585 A CN 105428585A
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CN
China
Prior art keywords
copper bar
main body
lithium ion
battery module
buckle
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.)
Granted
Application number
CN201510968086.1A
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Chinese (zh)
Other versions
CN105428585B (en
Inventor
赵晓军
李永江
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lishen Qingdao New Energy Co Ltd
Original Assignee
Lishen Power Battery System Co Ltd
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Priority to CN201510968086.1A priority Critical patent/CN105428585B/en
Publication of CN105428585A publication Critical patent/CN105428585A/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • H01M50/531Electrode connections inside a battery casing
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/052Li-accumulators
    • H01M10/0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Mounting, Suspending (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

The invention discloses a lithium ion battery module which comprises a battery module main body, wherein total cathode output ends and total anode output ends are arranged on the front side of the battery module main body; the battery module main body comprises a plurality of single battery cells; an upper support sleeves the upper part of each battery core main body; an upper copper bar is arranged on the top surface of each upper support; a buckle is arranged in each upper copper bar; the upper part of each battery cell main body penetrates through the corresponding upper copper bar and the corresponding buckle; each upper support and the corresponding buckle are fixedly connected; an upper nickel sheet is arranged in each buckle; the outer side end of each upper nickel sheet exceeds over the top surface of the corresponding buckle and then is welded with the corresponding upper copper bar; each upper copper bar and the corresponding battery cell main body are welded. The invention discloses the lithium ion battery module which is excellent in performance; the production and the maintenance can be conveniently performed, the production cost and the maintenance cost of the lithium ion battery module are remarkably reduced, precious resources are saved, and the usage rate of products is improved.

Description

A kind of lithium ion battery module
Technical field
The present invention relates to cell art, particularly relate to a kind of lithium ion battery module.
Background technology
Along with worldwide energy crisis and climate warming; traffic and transport field is in the urgent need to a kind of brand-new energy mode; and lithium ion battery is because of its environmental protection; the characteristics such as high-energy output cause the extensive concern of traffic and transport field; at present, in world wide, relevant industries are all studied widely to the application start of lithium ion battery in this field.
The advantages such as lithium ion battery has high working voltage, high-energy-density, has extended cycle life, non-environmental-pollution, not only be used widely on portable communication apparatus and portable electric appts, and be widely used in the big-and-middle-sized electrical equipment aspects such as electric automobile, electric bicycle and electric tool, be the Main way of current Ge great battery producer development.
At present, the lithium ion battery module of what pure electric passenger vehicle was more employ 18650 models and other models, utilizes space to greatest extent for pursuing, and usually occurs the connected mode of many and many strings.
For these lithium ion battery modules, in welding process, when whole battery modules will have been welded, finally easily there is failure welding and damage, thus cause whole battery modules to be scrapped.In addition, in the later maintenance of lithium ion battery module, after using for a long time, once occur that single crosstalk core has problem in battery modules, usually need whole battery modules all to be replaced or scraps.Usually go here and there due to a battery modules and count and have a large amount of monomer battery cores, therefore, the monomer battery core that extensive work can be caused good because single crosstalk core has problem is also wasted, therefore, existing lithium ion battery module, produce and safeguard inconvenient, product utilization rate is low, seriously add production cost and the maintenance cost of lithium ion battery module, cause the serious waste of resource.
Therefore, at present in the urgent need to developing a kind of lithium ion battery module, its excellent performance, can carry out easily producing and safeguarding, the production cost of remarkable attenuating lithium ion battery module and maintenance cost, improve the Appropriate application of lithium ion battery module greatly, promotes the useful life of battery modules, save valuable resource, improve product utilization rate.
Summary of the invention
In view of this, the object of this invention is to provide a kind of lithium ion battery module, its excellent performance, can carry out easily producing and safeguarding, the production cost of remarkable attenuating lithium ion battery module and maintenance cost, the Appropriate application of great raising lithium ion battery module, promote the useful life of battery modules, save valuable resource, improve product utilization rate, firm basis can have been established for lithium ion battery module captures battery of electric vehicle market faster and more, the scale of industry can be formed, be conducive to applying widely, be of great practical significance.
For this reason, the invention provides a kind of lithium ion battery module, comprise battery modules main body, the front of described battery modules master is provided with total cathode output end and total cathode output end;
Described battery modules main body comprises multiple monomer battery core, the top cover of described battery core main body has a upper bracket, the end face of described upper bracket is provided with a upper copper bar, a buckle is provided with in described upper copper bar, described battery core body top runs through by described upper copper bar and buckle, and described upper bracket is fixedly connected with buckle;
Be placed with nickel sheet in described buckle, weld mutually with described upper copper bar after the outboard end of described upper nickel sheet crosses buckle end face, described upper copper bar welds mutually with described battery core main body.
Wherein, bottom and the clamping of a lower carriage phase of described battery core main body, the bottom surface of described lower carriage is provided with lower copper bar, has a lower nickel sheet below described lower copper bar, described lower copper bar welds mutually with the outboard end of lower nickel sheet, and the medial extremity of described lower copper bar welds mutually with described battery core main body.
Wherein, the outboard end of described upper nickel sheet and described upper copper bar are welded together by the mode of laser welding;
Described upper copper bar and described battery core main body are welded together by the mode of resistance welded;
Welded together by the mode of laser welding between the outboard end of described lower copper bar and lower nickel sheet;
Medial extremity and the described battery core main body of described lower copper bar are welded together by the mode of resistance welded.
Wherein, described upper bracket is fixedly connected with by screw with buckle.
From above technical scheme provided by the invention, compared with prior art, a kind of lithium ion battery module provided by the invention, its excellent performance, can carry out easily producing and safeguarding, the production cost of remarkable attenuating lithium ion battery module and maintenance cost, the Appropriate application of great raising lithium ion battery module, promote the useful life of battery modules, save valuable resource, improve product utilization rate, firm basis can have been established for lithium ion battery module captures battery of electric vehicle market faster and more, the scale of industry can be formed, be conducive to applying widely, be of great practical significance.
Accompanying drawing explanation
Fig. 1 is the perspective view of a kind of lithium ion battery module provided by the invention;
Fig. 2 is the enlarged diagram of monomer battery core in a kind of lithium ion battery module provided by the invention;
Fig. 3 is the perspective exploded view of monomer battery core in a kind of lithium ion battery module provided by the invention;
Fig. 4 be in a kind of lithium ion battery module provided by the invention monomer battery core overlook enlarged drawing;
Fig. 5 is the cutaway view along the line of A-A shown in Fig. 4;
In figure, 1 is upper nickel sheet, and 2 is buckle, and 3 is battery core main body, and 4 is upper copper bar, and 5 is upper bracket, and 6 is lower carriage, and 7 is lower copper bar, and 8 is lower nickel sheet, and 10 is battery modules main body, and 20 is total cathode output end, and 30 is total cathode output end, and 40 is monomer battery core.
Embodiment
In order to make those skilled in the art person understand the present invention program better, below in conjunction with drawings and embodiments, the present invention is described in further detail.
See Fig. 1, the invention provides a kind of lithium ion battery module, comprise battery modules main body 10, the front of described battery modules main body 10 is provided with total cathode output end 20 and total cathode output end 30.
For the present invention, by described total cathode output end 20 and total cathode output end 30, can be connected with external electric equipment (as electric motor car) easily, for external electric equipment (as electric motor car) provides work electricity consumption.
In the present invention, described battery modules main body 10 comprises multiple monomer battery core 40, and described multiple monomer battery core 40 is linked together by serial or parallel connection mode each other, namely by multiple monomer battery core 40 described in connection in series-parallel, forms described battery modules main body 10.
In the lump see Fig. 2 to Fig. 5, each described monomer battery core 40 comprises columniform battery core main body 3, the bottom of described battery core main body 3 and the lower carriage 6 phase clamping of a central aperture, the bottom surface of described lower carriage 6 is provided with the lower copper bar 7 of central aperture, there is below described lower copper bar 7 a lower nickel sheet 8, welded together by the mode of laser welding between the outboard end of described lower copper bar 7 and lower nickel sheet 8, medial extremity and the described battery core main body 3 of described lower copper bar 7 are welded together by the mode of resistance welded.
In the present invention, the top cover of described battery core main body 3 has a upper bracket 5, the end face of described upper bracket 5 is provided with the upper copper bar 4 of a central aperture, is provided with the buckle 2 of a central aperture in described upper copper bar 4, and the top of described battery core main body 3 is run through by described upper copper bar 4 and buckle 2.
In the present invention, in specific implementation, the card that described buckle 2 is made for plastic material, can be produced by injection mold and realize.
See Fig. 2 to Fig. 4, nickel sheet 1 is placed with in described buckle 2, the outboard end of described upper nickel sheet 1 is higher than the end face of described buckle 2, welded together by the mode of laser welding with described upper copper bar 4 after the outboard end of described upper nickel sheet 1 crosses buckle 2 end face, and described upper copper bar 4 and described battery core main body 3 are welded together by the mode of resistance welded.
It should be noted that, for the present invention, described upper nickel sheet 1 and lower nickel sheet 8 can by blanking punched realizations, and producing cost is low.
In the present invention, in specific implementation, described upper bracket 5 is fixedly connected with by screw with buckle 2.
Compared with prior art, it should be noted that, lithium ion battery module provided by the invention, traditional nickel of copper up and down row Welding Structure is optimized by it.When assembling is of the present invention, first place lower carriage 6, then place upper bracket 5, buckle 5, and by screw, upper bracket 5 and buckle 2 are fixed; Then, by upper nickel sheet 1 and upper copper bar 4 and lower nickel sheet 8 and lower copper bar 7 respectively by laser welding, again by the mode of resistance welded, upper copper bar 4 and lower copper bar 7 are welded with battery core main body 3 (as being the battery core main body of 18650 models) respectively, thus can series-parallel system be passed through, by multiple monomer battery core composition battery modules.
For the present invention, it should be noted that, if there is single welding mistake in welding, occur at the end of particularly whole module is about to welding, or in later stage vehicle operating, occur that in single string, battery core has problem, in order to keep in repair, can by disassembling upper nickel sheet 1, upwards carry buckle 2, because buckle 2 is fixedly connected with upper bracket 5, thus drive the upper copper bar 4 above upper bracket 5 and upper bracket 5 upwards to link, in view of upper copper bar 4 welds together with battery core main body 3, thus finally battery core main body 3 can be taken out from battery modules, realize welding utilization again, thus the waste reduced whole battery modules, reach and reduce costs, safeguard simple object.
It should be noted that, for lithium ion battery module provided by the invention, when after monomer anode ring forming, can according to the needs of client, by the string between multiple battery core and connect combination, just can obtain the battery modules specification required for client, the user demand of the respective power consumption equipment such as competent electric motor car.
Therefore, in sum, compared with prior art, the invention provides a kind of lithium ion battery module, its excellent performance, can carry out easily producing and safeguarding, the production cost of remarkable attenuating lithium ion battery module and maintenance cost, the Appropriate application of great raising lithium ion battery module, promote the useful life of battery modules, save valuable resource, improve product utilization rate, firm basis can have been established for lithium ion battery module captures battery of electric vehicle market faster and more, the scale of industry can be formed, be conducive to applying widely, be of great practical significance.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (4)

1. a lithium ion battery module, is characterized in that, comprises battery modules main body (10), and the front of described battery modules main body (10) is provided with total cathode output end (20) and total cathode output end (30);
Described battery modules main body (10) comprises multiple monomer battery core (40), the top cover of described battery core main body (3) has a upper bracket (5), the end face of described upper bracket (5) is provided with a upper copper bar (4), a buckle (2) is provided with in described upper copper bar (4), described battery core main body (3) top is run through by described upper copper bar (4) and buckle (2), and described upper bracket (5) is fixedly connected with buckle (2);
Nickel sheet (1) is placed with in described buckle (2), weld mutually with described upper copper bar (4) after the outboard end of described upper nickel sheet (1) crosses buckle (2) end face, described upper copper bar (4) is welded mutually with described battery core main body (3).
2. lithium ion battery module as claimed in claim 1, it is characterized in that, bottom and the phase clamping of a lower carriage (6) of described battery core main body (3), the bottom surface of described lower carriage (6) is provided with lower copper bar (7), described lower copper bar (7) below has a lower nickel sheet (8), described lower copper bar (7) is welded mutually with the outboard end of lower nickel sheet (8), and the medial extremity of described lower copper bar (7) welds mutually with described battery core main body (3).
3. lithium ion battery module as claimed in claim 2, it is characterized in that, outboard end and the described upper copper bar (4) of described upper nickel sheet (1) are welded together by the mode of laser welding;
Described upper copper bar (4) and described battery core main body (3) are welded together by the mode of resistance welded;
Welded together by the mode of laser welding between described lower copper bar (7) and the outboard end of lower nickel sheet (8);
Medial extremity and the described battery core main body (3) of described lower copper bar (7) are welded together by the mode of resistance welded.
4. lithium ion battery module as claimed in claim 1, it is characterized in that, described upper bracket (5) is fixedly connected with by screw with buckle (2).
CN201510968086.1A 2015-12-18 2015-12-18 A kind of lithium ion battery module Active CN105428585B (en)

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CN105428585B CN105428585B (en) 2017-10-24

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106654110A (en) * 2017-03-02 2017-05-10 华霆(合肥)动力技术有限公司 Changeable battery module and system
CN107230758A (en) * 2017-07-04 2017-10-03 系统电子科技(镇江)有限公司 A kind of automobile batteries module with anti-seismic performance
CN109037514A (en) * 2018-06-06 2018-12-18 天津力神电池股份有限公司 A kind of cylindrical cell battery modules
CN114824669A (en) * 2022-05-23 2022-07-29 广州小鹏汽车科技有限公司 Electric connection assembly of battery module, battery module and vehicle

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003197173A (en) * 2001-12-26 2003-07-11 Shin Kobe Electric Mach Co Ltd Connection method for control valve type lead-acid battery
CN201160087Y (en) * 2008-03-03 2008-12-03 安耐信(北京)储能技术有限公司 Electrokinetic cell module for automobile
CN201243042Y (en) * 2008-05-25 2009-05-20 安耐信(北京)储能技术有限公司 Assembly type large-capacity battery mold core
CN204011533U (en) * 2014-08-06 2014-12-10 广州明美电子有限公司 A kind of powerful cylindrical battery
CN204277223U (en) * 2014-10-29 2015-04-22 沈鉴颖 Batteries of electric automobile bag bus-bar Laser Welding weld jig
CN204760464U (en) * 2015-06-23 2015-11-11 浙江时空能源技术有限公司 Electric automobile lithium ion battery package resistance welding nickel piece
CN205429060U (en) * 2015-12-18 2016-08-03 力神动力电池系统有限公司 Lithium ion battery module

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003197173A (en) * 2001-12-26 2003-07-11 Shin Kobe Electric Mach Co Ltd Connection method for control valve type lead-acid battery
CN201160087Y (en) * 2008-03-03 2008-12-03 安耐信(北京)储能技术有限公司 Electrokinetic cell module for automobile
CN201243042Y (en) * 2008-05-25 2009-05-20 安耐信(北京)储能技术有限公司 Assembly type large-capacity battery mold core
CN204011533U (en) * 2014-08-06 2014-12-10 广州明美电子有限公司 A kind of powerful cylindrical battery
CN204277223U (en) * 2014-10-29 2015-04-22 沈鉴颖 Batteries of electric automobile bag bus-bar Laser Welding weld jig
CN204760464U (en) * 2015-06-23 2015-11-11 浙江时空能源技术有限公司 Electric automobile lithium ion battery package resistance welding nickel piece
CN205429060U (en) * 2015-12-18 2016-08-03 力神动力电池系统有限公司 Lithium ion battery module

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106654110A (en) * 2017-03-02 2017-05-10 华霆(合肥)动力技术有限公司 Changeable battery module and system
CN106654110B (en) * 2017-03-02 2023-08-18 华霆(合肥)动力技术有限公司 Changeable battery module and system
CN107230758A (en) * 2017-07-04 2017-10-03 系统电子科技(镇江)有限公司 A kind of automobile batteries module with anti-seismic performance
CN107230758B (en) * 2017-07-04 2023-06-23 系统电子科技(镇江)有限公司 Automobile battery module with anti-seismic performance
CN109037514A (en) * 2018-06-06 2018-12-18 天津力神电池股份有限公司 A kind of cylindrical cell battery modules
CN114824669A (en) * 2022-05-23 2022-07-29 广州小鹏汽车科技有限公司 Electric connection assembly of battery module, battery module and vehicle
CN114824669B (en) * 2022-05-23 2024-04-30 广州小鹏汽车科技有限公司 Electric connection assembly of battery module, battery module and vehicle

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Effective date of registration: 20220124

Address after: 266500 Minshan Road, Huangdao District, Qingdao, Shandong

Patentee after: LISHEN (QINGDAO) NEW ENERGY CO.,LTD.

Address before: 300384 Tianjin Xiqing District Binhai new and high technology Industrial Development Zone Huayuan Technology Park (outside the ring) Hai Tai Nan Road No. 38.

Patentee before: LISHEN POWER BATTERY SYSTEMS Co.,Ltd.

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