CN108183256A - Battery core surface roll presses trimmer and shaping methods - Google Patents

Battery core surface roll presses trimmer and shaping methods Download PDF

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Publication number
CN108183256A
CN108183256A CN201711479342.6A CN201711479342A CN108183256A CN 108183256 A CN108183256 A CN 108183256A CN 201711479342 A CN201711479342 A CN 201711479342A CN 108183256 A CN108183256 A CN 108183256A
Authority
CN
China
Prior art keywords
battery core
rubber roller
conveyer belt
rack
trimmer
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
Application number
CN201711479342.6A
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Chinese (zh)
Inventor
李继伟
吴丛笑
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.)
Henan State Energy Battery Co Ltd
Original Assignee
Henan State Energy Battery Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Henan State Energy Battery Co Ltd filed Critical Henan State Energy Battery Co Ltd
Priority to CN201711479342.6A priority Critical patent/CN108183256A/en
Publication of CN108183256A publication Critical patent/CN108183256A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/04Construction or manufacture in general
    • H01M10/0404Machines for assembling batteries
    • 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
    • H01M10/058Construction or manufacture
    • 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
    • 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
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Primary Cells (AREA)

Abstract

The present invention relates to a kind of battery core surface roll pressure trimmer and shaping methods, shaping methods include the following steps, 1) it is, that battery core is horizontal positioned on the conveyor belt, 2), under the conveying of conveyer belt, battery core passes through more than two rubber rollers successively, vertical distance between each rubber roller and conveyer belt is gradually reduced, to realize multiple roll-in of the rubber roller to battery core.Battery core surface roll presses trimmer, including rack and the conveyer belt for being used to convey battery core being arranged in rack, rack is equipped with more than two rubber rollers, each rubber roller is sequentially arranged along the conveying direction of battery core, the vertical distance between conveyer belt of each rubber roller is gradually reduced to realize multistage roll-in of the rubber roller to battery core, supporting plate is equipped in the position of rubber roller in the rack, supporting plate lifts conveyer belt, and the upper side of supporting plate is plane.By verification experimental verification, the battery core after roller process, diaphragm fold disappears substantially, and negative plate black stains in the surface significantly reduces.

Description

Battery core surface roll presses trimmer and shaping methods
Technical field
The present invention relates to battery manufacturing fields, and in particular to a kind of battery core surface roll pressure trimmer and shaping methods.
Background technology
Ter-polymers lithium battery refers to that positive electrode uses the lithium battery of lithium nickel-cobalt-manganese ternary positive electrode material, lithium-ion electric There are many kinds of the positive electrodes in pond, mainly there is cobalt acid lithium, LiMn2O4, lithium nickelate, ternary material, LiFePO4 etc..Ternary at present The battery core of material is widely used instead of widely used cobalt acid lithium battery core before in Notebook Battery field.With a 30Ah Ternary battery for, through disassemble find inside battery diaphragm fold it is more serious, negative plate surface black spot is more.
Invention content
The object of the present invention is to provide a kind of battery core surface shaping methods, tight to solve internal diaphragm fold existing for battery The technical issues of weight;The present invention also provides a kind of roll-in trimmers for implementing the above method simultaneously.
To achieve the above object, battery core surface of the present invention shaping methods adopt the following technical scheme that:Include the following steps, 1), that battery core is horizontal positioned on the conveyor belt, 2), under the conveying of conveyer belt, battery core is successively by more than two rubber rollers, respectively Vertical distance between rubber roller and conveyer belt is gradually reduced, to realize multiple roll-in of the rubber roller to battery core.
Further preferably, in step 2), there are four rubber rollers, respectively the first rubber roller, the second rubber roller, third rubber roller, the 4th Rubber roller, each rubber roller are sequentially arranged along the conveying direction of battery core.
For implementing the battery core surface roll of above-mentioned battery core surface shaping methods pressure trimmer, including rack and it is arranged on rack On for conveying the conveyer belt of battery core, rack is equipped with more than two rubber rollers, each rubber roller along battery core conveying direction successively Arrangement, the vertical distance between conveyer belt of each rubber roller are gradually reduced to realize multistage roll-in of the rubber roller to battery core, the machine Supporting plate is equipped in the position of rubber roller on frame, supporting plate lifts conveyer belt, and the upper side of supporting plate is plane.
Further preferably, there are four the rubber rollers, respectively the first rubber roller, the second rubber roller, third rubber roller, the 4th rubber roller.
Further preferably, by cylinder supports, cylinder is fixed in rack each rubber roller.
Further preferably, the cylinder is double-rod cylinder, and cylinder upper end is equipped with bearing block, and rubber roller is assemblied in axis by bearing In bearing.
Further preferably, the rack is equipped with hand control valve, and hand control valve is connected with cylinder by corresponding tracheae.
Further preferably, the conveyer belt is smooth surface conveyer belt.
Beneficial effects of the present invention:The present invention carries out roller process to battery core, changes the place for using concora crush in the prior art Reason mode.More than two rubber rollers are set in rack, and each rubber roller is different, gap edge conveying apart from the gap of conveyer belt Direction is gradually smaller, and at work, battery core is conveyed successively by conveyer belt by each rubber roller, realizes the multistage roll-in to battery core Battery core internal gas is discharged in processing.By verification experimental verification, the battery core after roller process, diaphragm fold disappears substantially, cathode Piece black stains in the surface significantly reduces.
Description of the drawings
Fig. 1 is the part-structure schematic diagram of battery core surface roll pressure trimmer embodiment 1 of the present invention;
Fig. 2 is the principle schematic of battery core surface roll pressure trimmer embodiment 1 of the present invention;
Fig. 3 be about battery constant current than experimental data figure;
Fig. 4 is the experimental data figure about battery capacity;
Fig. 5 be about platform capacity than experimental data figure;
Fig. 6 is the contrast schematic diagram before and after battery roll-in;Wherein (a) is not by roller process, after (b) is roll-in 's.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete Site preparation describes.
The embodiment 1 of battery core surface roll pressure trimmer of the present invention, as Figure 1-Figure 2, including rack 1 and is arranged on rack The conveyer belt 2 for being used to convey battery core 11 on 1.Conveyer belt 2 is smooth surface conveyer belt, will not generate coining, and have to battery core surface Adhesive force.Convey bandwidth 450mm.Conveyer belt is driven by motor, and conveying speed 0.3m/s, rotating speed is adjustable.Rack is equipped with four A rubber roller, respectively the first rubber roller 8, the second rubber roller 9, third rubber roller 3, the 4th rubber roller 7.Each rubber roller along battery core conveying direction according to Secondary arrangement, top roller diameter 75mm, length 450mm.In the present embodiment, the first rubber roller 8, the second rubber roller 9, third rubber roller the 3, the 4th 7 left and right directions arranged for interval of rubber roller.The vertical distance between conveyer belt of each rubber roller is gradually reduced to realize rubber roller to battery core Multistage roll-in, specifically, the first rubber roller 8, the second rubber roller 9, third rubber roller 3, the 4th rubber roller 7 minimum point and conveyer belt 2 on The vertical distance on surface is denoted as H1, H2, H3, H4, and H1 > H2 > H3 > H4 respectively.Vertical distance namely gap, the model in gap It is trapped among 0~20mm.
Supporting plate 10 is equipped in the position of rubber roller in rack, supporting plate 10 lifts conveyer belt 2, and the upper side of supporting plate is flat Face.Supporting plate uses steel plate, by setting supporting plate, coordinates in roll-in position and rubber roller, and roll-in can be prevented uneven.
Each rubber roller is supported by cylinder 5, and cylinder 5 is fixed in rack 1.Cylinder 5 is double-rod cylinder, and cylinder upper end is equipped with bearing Seat 4, rubber roller is assemblied in by bearing on bearing block.Cylinder uses in pairs namely a rubber roller is to a pair of of cylinder, this is to cylinder It is distributed rack both sides.Rack is equipped with hand control valve 6, and hand control valve 6 is connected with cylinder 5 by corresponding tracheae.
It advanced optimizes, is additionally provided with grating in charging delivery end in rack, is used cooperatively with relay.When having detected electricity During core, whole equipment is primary with regard to automatic running.
It advanced optimizes, hairbrush is additionally provided in rack, conveyer belt is cleared up.
The embodiment of battery core surface of the present invention shaping methods, includes the following steps, 1), battery core lain in a horizontal plane in into conveyer belt On, 2), under the conveying of conveyer belt, battery core successively by more than two rubber rollers, between each rubber roller and conveyer belt it is vertical away from From being gradually reduced, to realize multiple roll-in of the rubber roller to battery core.
In step 2), there are four rubber rollers, respectively the first rubber roller, the second rubber roller, third rubber roller, the 4th rubber roller, each rubber roller It is sequentially arranged along the conveying direction of battery core.
The embodiment 1 of above-mentioned battery core surface roll pressure trimmer can implement the shaping methods.
To verify the validity of the method for the present invention, following experiment has been done:
First, same batch battery core is selected, after one takes out, a part carries out concora crush, and a part uses above-mentioned rolling equipment Carry out roll-in shaping (mark GY).Separately circulation compares each process electrical property and disassembles.Concora crush also just uses existing spreader bar, Integrally apply pressure to battery core, discharge battery core internal gas, this is also mode used by current production line.
Experimental data, as seen in figures 3-5:
(1) after roll-in shaping, battery core compares producing line battery core, and capacity improves 1.4Ah or so;
(2) after roll-in shaping, battery core compares producing line battery core, and platform capacity is than high by 2%;
(3) after roll-in shaping, battery core compares producing line battery core, and constant current is than high by 1%.
48h is shelved after being full of with similary work step after roll-in shaping process battery core and concora crush technique battery core partial volume to disassemble:
(1) roll-in shaping battery core, voltage 4.132V, internal resistance 1.439m Ω;
(2) concora crush technique battery core, voltage 4.134V, internal resistance 1.560m Ω.
Battery core after roll-in shaping, negative plate black stains in the surface significantly reduce, and diaphragm buckling problems disappear substantially, such as Fig. 6 institutes Show.
Battery core surface roll presses the embodiment 2 of trimmer:
Difference lies in be not provided with cylinder to the present embodiment with embodiment 1.Rubber roller is directly fixed by bearing block, and rubber roller passes through axis Installation is matched, and the gap between rubber roller and conveyer belt is ensured by the height of bearing block.
In other embodiments, rubber roller can also be used two or three.
The present invention is not limited to above-mentioned preferred forms, anyone can show that other are various under the enlightenment of the present invention The product of form, however, make any variation in its shape or structure, it is every that there is skill identical or similar to the present application Art scheme, is within the scope of the present invention.

Claims (8)

1. battery core surface shaping methods, it is characterised in that:Include the following steps, 1), battery core is horizontal positioned on the conveyor belt, 2), under the conveying of conveyer belt, battery core successively by more than two rubber rollers, vertical distance between each rubber roller and conveyer belt by It is decrescence small, to realize multiple roll-in of the rubber roller to battery core.
2. battery core surface according to claim 1 shaping methods, it is characterised in that:In step 2), there are four rubber rollers, respectively For the first rubber roller, the second rubber roller, third rubber roller, the 4th rubber roller, each rubber roller is sequentially arranged along the conveying direction of battery core.
3. for implementing the battery core surface roll of battery core surface shaping methods described in claim 1 pressure trimmer, it is characterised in that:Packet Including rack and the conveyer belt for being used to convey battery core being arranged in rack, rack are equipped with more than two rubber rollers, each rubber roller edge The conveying direction of battery core is sequentially arranged, and the vertical distance between conveyer belt of each rubber roller is gradually reduced to realize rubber roller to battery core Multistage roll-in, be equipped with supporting plate in the position of rubber roller in the rack, supporting plate lifts conveyer belt, and the upper side of supporting plate is flat Face.
4. battery core surface roll according to claim 3 presses trimmer, it is characterised in that:There are four the rubber rollers, respectively First rubber roller, the second rubber roller, third rubber roller, the 4th rubber roller.
5. battery core surface roll according to claim 4 presses trimmer, it is characterised in that:Each rubber roller by cylinder supports, Cylinder is fixed in rack.
6. battery core surface roll according to claim 5 presses trimmer, it is characterised in that:The cylinder be double-rod cylinder, gas Cylinder upper end is equipped with bearing block, and rubber roller is assemblied in by bearing on bearing block.
7. battery core surface roll according to claim 5 presses trimmer, it is characterised in that:The rack is equipped with hand control valve, Hand control valve is connected with cylinder by corresponding tracheae.
8. trimmer is pressed according to claim 3 to 7 any one of them battery core surface roll, it is characterised in that:The conveyer belt is Smooth surface conveyer belt.
CN201711479342.6A 2017-12-29 2017-12-29 Battery core surface roll presses trimmer and shaping methods Pending CN108183256A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711479342.6A CN108183256A (en) 2017-12-29 2017-12-29 Battery core surface roll presses trimmer and shaping methods

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711479342.6A CN108183256A (en) 2017-12-29 2017-12-29 Battery core surface roll presses trimmer and shaping methods

Publications (1)

Publication Number Publication Date
CN108183256A true CN108183256A (en) 2018-06-19

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109687049A (en) * 2018-12-19 2019-04-26 江苏卡耐新能源有限公司 A method of improving flexible packing lithium ion battery diaphragm fold
CN110484660A (en) * 2019-08-21 2019-11-22 海宁杰盛新材料有限公司 Leather leftover pieces air blast pressuring flat device
CN113036205A (en) * 2020-12-28 2021-06-25 上海骄成机电设备有限公司 Cylindrical battery end face shaping method and system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201437282U (en) * 2009-07-14 2010-04-14 东莞市欧西曼机械设备有限公司 Movable roller press
CN201776962U (en) * 2010-08-25 2011-03-30 万向电动汽车有限公司 Power battery rolling device
CN102847859A (en) * 2012-08-21 2013-01-02 东莞新能源科技有限公司 Rolling method of lithium ion battery pole piece
CN205177963U (en) * 2015-10-30 2016-04-20 浙江钱江锂电科技有限公司 Soft package lithium -ion battery's rolling press device
CN205406651U (en) * 2016-03-02 2016-07-27 宁德新能源科技有限公司 Soft packet of secondary cell changes into system
CN206163619U (en) * 2016-10-20 2017-05-10 东莞市新宇机械有限公司 Electricity core rod press constructs

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201437282U (en) * 2009-07-14 2010-04-14 东莞市欧西曼机械设备有限公司 Movable roller press
CN201776962U (en) * 2010-08-25 2011-03-30 万向电动汽车有限公司 Power battery rolling device
CN102847859A (en) * 2012-08-21 2013-01-02 东莞新能源科技有限公司 Rolling method of lithium ion battery pole piece
CN205177963U (en) * 2015-10-30 2016-04-20 浙江钱江锂电科技有限公司 Soft package lithium -ion battery's rolling press device
CN205406651U (en) * 2016-03-02 2016-07-27 宁德新能源科技有限公司 Soft packet of secondary cell changes into system
CN206163619U (en) * 2016-10-20 2017-05-10 东莞市新宇机械有限公司 Electricity core rod press constructs

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109687049A (en) * 2018-12-19 2019-04-26 江苏卡耐新能源有限公司 A method of improving flexible packing lithium ion battery diaphragm fold
CN110484660A (en) * 2019-08-21 2019-11-22 海宁杰盛新材料有限公司 Leather leftover pieces air blast pressuring flat device
CN113036205A (en) * 2020-12-28 2021-06-25 上海骄成机电设备有限公司 Cylindrical battery end face shaping method and system
CN113036205B (en) * 2020-12-28 2022-07-19 上海骄成超声波技术股份有限公司 Cylindrical battery end face shaping method and system

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Application publication date: 20180619

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