CN105428585B - A kind of lithium ion battery module - Google Patents

A kind of lithium ion battery module Download PDF

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Publication number
CN105428585B
CN105428585B CN201510968086.1A CN201510968086A CN105428585B CN 105428585 B CN105428585 B CN 105428585B CN 201510968086 A CN201510968086 A CN 201510968086A CN 105428585 B CN105428585 B CN 105428585B
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CN
China
Prior art keywords
copper bar
main body
buckle
battery core
lithium ion
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CN201510968086.1A
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Chinese (zh)
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CN105428585A (en
Inventor
赵晓军
李永江
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Lishen Qingdao New Energy Co Ltd
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Lishen Power Battery System Co Ltd
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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 kind of lithium ion battery module, including battery modules main body, the front of the battery modules master is provided with total cathode output end and total cathode output end;The battery modules main body includes multiple single battery cores, the top of the battery core main body is cased with a upper bracket, the top surface of the upper bracket is provided with a upper copper bar, a buckle is provided with the upper copper bar, the battery core body top extends through the upper copper bar and buckle, and the upper bracket is fixedly connected with buckle;It is placed with nickel sheet in the buckle, the outboard end of the upper nickel sheet is crossed after buckle top surface and mutually welded with the upper copper bar, and the upper copper bar is mutually welded with the battery core main body.The invention discloses a kind of lithium ion battery module, its excellent performance easily can be produced and safeguarded, significantly lowered the production cost and maintenance cost of lithium ion battery module, saved valuable resource, improve product utilization rate.

Description

A kind of lithium ion battery module
Technical field
The present invention relates to cell art, more particularly to a kind of lithium ion battery module.
Background technology
With worldwide energy crisis and climate warming, traffic and transport field is in the urgent need to a kind of brand-new energy Pattern, and lithium ion battery is because of its environmental protection, the characteristic such as high-energy output causes the extensive concern of traffic and transport field, mesh Before, in world wide relevant industries all to lithium ion battery this field the extensive research of application start.
Lithium ion battery have the advantages that high working voltage, high-energy-density, have extended cycle life, non-environmental-pollution, not only exist Be used widely on portable communication apparatus and portable electric appts, and be widely used in electric automobile, it is electronic from It is the Main way of major battery producer development at present in terms of the big-and-middle-sized electrical equipment such as driving and electric tool.
At present, what pure electric passenger vehicle was more has used 18650 models and the lithium ion battery module of other models, is Utilization space to greatest extent is pursued, connected mode that is many and going here and there more usually occurs.
For these lithium ion battery modules, in welding process, when whole battery modules will weld completion, finally hold Easily there is failure welding and damage, so as to cause whole battery modules to be scrapped.In addition, in the later maintenance of lithium ion battery module In, once occurring after long-time use, in battery modules, single string battery core is problematic, it is often necessary to by whole battery modules All replace or scrap.Gone here and there because a battery modules are usual and number has substantial amounts of single battery core, therefore, can be due to single battery core of going here and there Problematic and cause the good single battery core of extensive work to be also wasted, therefore, existing lithium ion battery module and is tieed up production Shield is inconvenient, and product utilization rate is low, seriously adds the production cost and maintenance cost of lithium ion battery module, causes resource Serious waste.
Therefore, at present in the urgent need to developing a kind of lithium ion battery module, its excellent performance can easily be given birth to Production and maintenance, significantly lower the production cost and maintenance cost of lithium ion battery module, greatly improve lithium ion battery module Reasonable utilization, lift the service life of battery modules, save valuable resource, improve product utilization rate.
The content of the invention
In view of this, it is an object of the invention to provide a kind of lithium ion battery module, its excellent performance can easily enter Row production and maintenance, significantly lower the production cost and maintenance cost of lithium ion battery module, greatly improve lithium ion battery The reasonable utilization of module, lifts the service life of battery modules, saves valuable resource, improves product utilization rate, can be lithium Ion battery module captures battery of electric vehicle market and has established firm basis faster and more, can form the scale of industry Change, be conducive to widely applying, be of great practical significance.
Therefore, the invention provides a kind of lithium ion battery module, including battery modules main body, the battery modules master's Front is provided with total cathode output end and total cathode output end;
The battery modules main body includes multiple single battery cores, and each single battery core includes the battery core master of cylinder Body, the top of the battery core main body is cased with a upper bracket, and the top surface of the upper bracket is provided with a upper copper bar, the upper copper A buckle is provided with row, the battery core body top extends through the upper copper bar and buckle, the upper bracket and buckle It is fixedly connected;
Be placed with nickel sheet in the buckle, the outboard end of the upper nickel sheet cross after buckle top surface with the upper copper bar phase Welding, the upper copper bar is mutually welded with the battery core main body;
The upper bracket is fixedly connected with screw is snapped through.
Wherein, the bottom of the battery core main body and a lower carriage phase clamping, the bottom surface of the lower carriage is provided with lower copper There is a lower nickel sheet below row, the lower copper bar, the lower copper bar and the outboard end of lower nickel sheet are mutually welded, the lower copper bar Medial extremity is mutually welded with the battery core main body.
Wherein, the outboard end of the upper nickel sheet is welded together with the upper copper bar by way of laser welding;
The upper copper bar is welded together with the battery core main body by way of resistance welding;
Welded together between the lower copper bar and the outboard end of lower nickel sheet by way of laser welding;
The medial extremity of the lower copper bar is welded together with the battery core main body by way of resistance welding.
The technical scheme that there is provided of the present invention more than, compared with prior art, a kind of lithium that the present invention is provided from Sub- battery modules, its excellent performance easily can be produced and safeguarded, significantly lower being produced into for lithium ion battery module This and maintenance cost, greatly improve the reasonable utilization of lithium ion battery module, lift the service life of battery modules, save precious Expensive resource, improves product utilization rate, can capture battery of electric vehicle market faster and more for lithium ion battery module and establish Firm basis, can form the scale of industry, be conducive to widely applying, be of great practical significance.
Brief description of the drawings
A kind of dimensional structure diagram for lithium ion battery module that Fig. 1 provides for the present invention;
The enlarged diagram of single battery core in a kind of lithium ion battery module that Fig. 2 provides for the present invention;
The perspective exploded view of single battery core in a kind of lithium ion battery module that Fig. 3 provides for the present invention;
The top perspective view of single battery core in a kind of lithium ion battery module that Fig. 4 provides for the present invention;
Fig. 5 is the sectional view along line A-A shown in Fig. 4;
In figure, 1 is upper nickel sheet, and 2 be buckle, and 3 be battery core main body, and 4 be upper copper bar, and 5 be upper bracket, and 6 be lower carriage, and 7 are Lower copper bar, 8 be lower nickel sheet, and 10 be battery modules main body, and 20 be total cathode output end, and 30 be total cathode output end, and 40 be monomer Battery core.
Embodiment
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the accompanying drawings with embodiment to this Invention is described in further detail.
Referring to Fig. 1, the invention provides a kind of lithium ion battery module, including battery modules main body 10, the battery mould The front of group main body 10 is provided with total cathode output end 20 and total cathode output end 30.
For the present invention, by the total cathode output end 20 and total cathode output end 30, easily it can be used with outside Electric equipment (such as electric car) is connected, and is that external electric equipment (such as electric car) provides work electricity consumption.
In the present invention, the battery modules main body 10 includes multiple single battery cores 40, the multiple phase of single battery core 40 Linked together between mutually by serial or parallel connection mode, i.e., by the multiple single battery core 40 of connection in series-parallel, constitute the electricity Pond module main body 10.
In the lump referring to Fig. 2 to Fig. 5, each single battery core 40 includes the battery core main body 3 of cylinder, the battery core main body 3 bottom and the phase clamping of lower carriage 6 of a central aperture, the bottom surface of the lower carriage 6 is provided with the lower copper bar of central aperture 7, the lower lower section of copper bar 7 has a lower nickel sheet 8, and laser welding is passed through between the lower copper bar 7 and the outboard end of lower nickel sheet 8 Mode weld together, the medial extremity of the lower copper bar 7 is welded on one with the battery core main body 3 by way of resistance welding Rise.
In the present invention, the top of the battery core main body 3 is cased with a upper bracket 5, and the top surface of the upper bracket 5 is provided with The buckle 2 of a central aperture is provided with the upper copper bar 4 of one central aperture, the upper copper bar 4, the battery core main body 3 Top extends through the upper copper bar 4 and buckle 2.
In the present invention, implement, the buckle 2 is the card that plastic material is made, and can be given birth to by injection mold Production is realized.
Referring to Fig. 2 to Fig. 4, nickel sheet 1 is placed with the buckle 2, the outboard end of the upper nickel sheet 1 is higher than the buckle 2 top surface, the outboard end of the upper nickel sheet 1 is crossed after the top surface of buckle 2 and welded with the upper copper bar 4 by way of laser welding Together, and the upper copper bar 4 is welded together with the battery core main body 3 by way of resistance welding.
It should be noted that for the present invention, the upper nickel sheet 1 and lower nickel sheet 8 can be realized by blanking punched, production Expense is low.
In the present invention, implement, the upper bracket 5 is fixedly connected with buckle 2 by screw.
Compared with prior art, it is necessary to explanation, the lithium ion battery module that provides of the present invention, it will be traditional upper Lower cupro-nickel row welding structure is optimized.When assembling the present invention, lower carriage 6 is placed first, then places upper bracket 5, card Button 5, and upper bracket 5 and buckle 2 are fixed by screw;Then, by upper nickel sheet 1 and upper copper bar 4 and the He of lower nickel sheet 8 Lower copper bar 7 is respectively by laser welding, then by way of resistance welding, by upper copper bar 4 and lower copper bar 7 respectively with battery core main body 3 (such as can be the battery core main body of 18650 models) welding, so as to which by series-parallel system, multiple single battery cores are constituted Battery modules.
For the present invention, it is necessary to which explanation, if occurring single welding mistake in welding, particularly whole module is To occur at the end of welding, or battery core is problematic in later stage vehicle emerged in operation list string, in order to be repaired, can pass through Nickel sheet 1 is disassembled, buckle 2 is carried upwards, because buckle 2 is fixedly connected with upper bracket 5, so as to drive upper bracket 5 and upper branch Upper copper bar 4 above frame 5 links upwards, in view of upper copper bar 4 welds together with battery core main body 3, so that may finally be by battery core Main body 3 is taken out from battery modules, and utilization is welded in realization again, so as to reduce the waste to whole battery modules, reaching reduces into Originally simple purpose, is safeguarded.
It should be noted that the lithium ion battery module provided for the present invention, can basis after single battery core is molded The need for client, combine by the string between multiple battery cores and even, it is possible to obtain the battery modules specification required for client, win Appoint the use demand of the respective electrical equipment such as electric car.
Therefore, in summary, compared with prior art, the invention provides a kind of lithium ion battery module, its performance It is excellent, easily it can be produced and be safeguarded, significantly lower the production cost and maintenance cost of lithium ion battery module, greatly Raising lithium ion battery module reasonable utilization, lift the service life of battery modules, save valuable resource, improve product Utilization rate, can capture battery of electric vehicle market faster and more for lithium ion battery module and establish firm basis, can The scale of formation industry, is conducive to widely applying, is of great practical significance.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should It is considered as protection scope of the present invention.

Claims (3)

1. a kind of lithium ion battery module, it is characterised in that including battery modules main body (10), the battery modules main body (10) Front be provided with total cathode output end (20) and total cathode output end (30);
The battery modules main body (10) includes multiple single battery cores (40), and each single battery core (40) includes cylinder Battery core main body (3), the top of the battery core main body (3) is cased with a upper bracket (5), and the top surface of the upper bracket (5) is provided with A buckle (2) is provided with one upper copper bar (4), the upper copper bar (4), battery core main body (3) top extends through institute Copper bar (4) and buckle (2) are stated, the upper bracket (5) is fixedly connected with buckle (2);
Be placed with nickel sheet (1) in the buckle (2), the outboard end of the upper nickel sheet (1) cross after buckle (2) top surface with it is described Upper copper bar (4) is mutually welded, and the upper copper bar (4) is mutually welded with the battery core main body (3);
The upper bracket (5) is fixedly connected with buckle (2) by screw.
2. lithium ion battery module as claimed in claim 1, it is characterised in that the bottom of the battery core main body (3) and one Lower carriage (6) phase clamping, the bottom surface of the lower carriage (6), which is provided with below lower copper bar (7), the lower copper bar (7), has one Lower nickel sheet (8), the outboard end of the lower copper bar (7) and lower nickel sheet (8) is mutually welded, the medial extremity of the lower copper bar (7) with it is described Battery core main body (3) is mutually welded.
3. lithium ion battery module as claimed in claim 2, it is characterised in that the outboard end of the upper nickel sheet (1) with it is described Upper copper bar (4) is welded together by way of laser welding;
The upper copper bar (4) is welded together with the battery core main body (3) by way of resistance welding;
Welded together between the lower copper bar (7) and the outboard end of lower nickel sheet (8) by way of laser welding;
The medial extremity of the lower copper bar (7) is welded together with the battery core main body (3) by way of resistance welding.
CN201510968086.1A 2015-12-18 2015-12-18 A kind of lithium ion battery module Active CN105428585B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN105428585B true CN105428585B (en) 2017-10-24

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
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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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

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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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