CN103258997B - Method for eliminating battery plate stress - Google Patents
Method for eliminating battery plate stress Download PDFInfo
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- CN103258997B CN103258997B CN201310118460.XA CN201310118460A CN103258997B CN 103258997 B CN103258997 B CN 103258997B CN 201310118460 A CN201310118460 A CN 201310118460A CN 103258997 B CN103258997 B CN 103258997B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention relates to a method for eliminating battery plate stress, especially that of a nickel-metal hydride battery plate. The method comprises the steps of: 1) first, bringing a battery plate into a transverse kneading machine to undergo transverse slight kneading; 2) leading the battery plate subjected to the transverse slight kneading into a longitudinal kneading machine to make a negative plate undergo longitudinal slight kneading; 3) crossing the slight kneaded battery plate in two directions; and (4) finally carrying out flattening by a rolling machine. The method provided in the invention makes the internal stress of a negative pole piece released, enables the surface to become a smooth curved surface, improves the qualified rate of winding assembly, enhances battery performance, reduces equipment abrasion, and lowers production cost.
Description
Technical field
The present invention relates to a kind of method eliminating battery pole plates stress, particularly Ni-MH battery pole plate.
Background technology
The pole plate of Ni-MH battery is coated in active material in slurry form base material rolls through super-dry and makes.In roller compaction process, particularly the distortion that produces of base material is very large for pole plate slurry, and internal stress is difficult to release.Because the existence of residual stress, the release of residual stress in the short time is there is in pole plate when having internal stresses release or the high temperature of long period when room temperature, location, pole plate local intensity difference simultaneously, pole plate will produce warpage or problem on deformation in stress-retained position.During pole plate winding, plate buckling, stress now discharges, and causes pole plate sideslip, and cause battery pole plates surface in battery winding process not form smooth surface, the battery winding end face rolled out is irregular.Battery pole plates can be made to be the key factor determining battery winding rate of finished products discharging stress after rolling.
If the stress of 1 battery pole plates does not discharge, its surface can not form level and smooth curved surface, generation is ruptured, puncture diaphragm paper and cause battery short circuit in winding process.This will be manufacture a difficult problem maximum in cell process.
If the stress of 2 battery pole plates can not get release, during winding, plate buckling stress now discharges, and causes pole plate sideslip, and winding battery winding end face is out irregular, will directly affect the welding of flow collection sheet, has a strong impact on the performance of battery.
3, battery winder is extremely important equipment in battery manufacturing process, and expensive, its accessory needs import, if the stress of battery pole plates can not get release, pole piece is really up to the mark, will directly affect the life-span of volume pin, the infringement of equipment is strengthened, adds production cost.
As mentioned above, when the stress of battery pole plates can not get release, the qualification rate of battery winding can be reduced, increase production cost, so how making battery pole plates discharge stress in advance at winding circle is the key factor determining battery winding quality.
Summary of the invention
The object of the present invention is to provide a kind of qualification rate that can improve battery winding, improve the performance of battery, reduce the wearing and tearing to equipment, improve a kind of method eliminating battery pole plates stress of battery quality.
The technical scheme that the present invention is taked for achieving the above object is:
The inventive method step is as follows: 1), by battery pole plates laterally enter into and rub in sheet machine, waveform transmission is carried out through its inner pressure roller and conveyer belt, battery pole plates is carried out, and transverse direction is micro-rubs, micro-when rubbing, angle between the line of crest and trough and horizontal line is 15-30 degree, conveyer belt transfer rate: 1-2 m/min; 2) longitudinally rub in sheet machine by putting into after the battery pole plates 90-degree rotation after micro-for transverse direction rubbing, waveform transmission is carried out through its inner pressure roller and conveyer belt, battery pole plates is carried out, and longitudinal direction is micro-rubs, micro-when rubbing, angle between the line of crest and trough and horizontal line is 15-30 degree, conveyer belt transfer rate: 1-2 m/min; 3) the micro-battery pole plates rubbed of both direction intersection flattens through roller; 4) to micro-rub release stress after the pole plate that is out of shape carry out die-cut Shape correction.
Above-mentioned steps of the present invention need 30% ~ 60% humidity, carry out under environment at 35 ± 2 DEG C.
Battery pole plates by rubbing sheet machine and longitudinal intersection roll-in of rubbing sheet machine pressure roller, is effectively alleviated battery pole plates internal stress by micro-method of rubbing by the present invention, makes battery pole plates soft, level and smooth.Be conducive to the winding assembling of Ni-MH battery, and reduce costs.The present invention needs to carry out under specific humidity and temperature environment, and humidity is too low, and pole plate easy dry linting when bending even ruptures, and humidity is too high, and battery pole plates easily adheres to slurry on roller when by rubbing sheet machine; Temperature improves the release can accelerating pole plate stress, makes pole plate Stress Release more thorough, but the too high performance easily having influence on again battery of temperature.Determining micro-humidity of rubbing method elimination pole plate stress through test of many times is 30% ~ 60%, and temperature is 35 ± 2 DEG C.
Advantage of the present invention is:
1, battery pole plates is entered to intersect micro-rubbing by rubbing sheet machine by the present invention, discharges its internal stress, improves the qualification rate of winding, reduce production cost.
2, rub through micro-the battery pole plates processed, polar board surface can form smooth surface, battery winding end surface shape rule, is convenient to flow collection sheet welding, improves the performance of battery.
3, the present invention not only improves battery qualification rate, can also reduce the wearing and tearing to equipment, reduces production cost.
Accompanying drawing explanation
Fig. 1 is present invention process flow chart.
Embodiment
The method step eliminating battery pole plates stress is as follows: 1) ambient humidity: 30% ~ 60%, temperature: 35 ± 2 DEG C, laterally being entered into by battery pole plates 1 rubs in sheet machine 2, waveform transmission is carried out through its inner pressure roller and conveyer belt, battery pole plates 1 is carried out, and transverse direction is micro-rubs, micro-when rubbing, angle between the line of crest and trough and horizontal line is 20 degree, conveyer belt transfer rate: 1 m/min; 2) longitudinally rub in sheet machine 3 by putting into after battery pole plates 1 90-degree rotation after micro-for transverse direction rubbing, waveform transmission is carried out through its inner pressure roller and conveyer belt, battery pole plates is carried out, and longitudinal direction is micro-rubs, micro-when rubbing, angle between the line of crest and trough and horizontal line is 15 degree, conveyer belt transfer rate: 1 m/min; 3) the micro-battery pole plates rubbed of both direction intersection flattens through roller; 4) to micro-rub release stress after the pole plate that is out of shape carry out die-cut Shape correction.
Embodiment:
Get 200 nickel-hydrogen battery negative pole pole pieces 1, wherein 100 to be undertaken by method of the present invention that intersection is micro-rubs process.Then carry out respectively reeling, assembling.The pole piece coiling spec battery obtained by the inventive method 94, assembling spec battery 93, and there is no treated pole piece coiling spec battery 89, assembling spec battery 85.Use the same method and done 2 tests, obtaining the data shown in following table:
Can reach a conclusion from above-described embodiment: utilize the present invention to reach and improve battery winding assembly qualified rate, improve the performance of battery, improve battery quality, reduce the wearing and tearing to equipment, reduce costs.
Claims (1)
1. eliminate battery pole plates strain method for one kind, it is characterized in that: method step is as follows: 1), by battery pole plates laterally enter into and rub in sheet machine, waveform transmission is carried out through its inner pressure roller and conveyer belt, battery pole plates is carried out, and transverse direction is micro-rubs, micro-when rubbing, micro-rub process need 30% ~ 60% humidity, carry out under environment at 35 ± 2 DEG C, the angle between the line of crest and trough and horizontal line is 15-30 degree, conveyer belt transfer rate: 1-2 m/min; 2) longitudinally rub in sheet machine by putting into after the battery pole plates 90-degree rotation after micro-for transverse direction rubbing, waveform transmission is carried out through its inner pressure roller and conveyer belt, battery pole plates is carried out, and longitudinal direction is micro-rubs, micro-when rubbing, angle between the line of crest and trough and horizontal line is 15-30 degree, conveyer belt transfer rate: 1-2 m/min; 3) the micro-battery pole plates rubbed of both direction intersection flattens through roller; 4) to micro-rub release stress after the pole plate that is out of shape carry out die-cut Shape correction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310118460.XA CN103258997B (en) | 2013-04-08 | 2013-04-08 | Method for eliminating battery plate stress |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310118460.XA CN103258997B (en) | 2013-04-08 | 2013-04-08 | Method for eliminating battery plate stress |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103258997A CN103258997A (en) | 2013-08-21 |
| CN103258997B true CN103258997B (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310118460.XA Active CN103258997B (en) | 2013-04-08 | 2013-04-08 | Method for eliminating battery plate stress |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104347891B (en) * | 2014-11-11 | 2016-08-17 | 厦门慧通天下新能源有限公司 | Sheet machine rubbed by a kind of battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09226991A (en) * | 1996-02-21 | 1997-09-02 | Sumitomo Electric Ind Ltd | Method of winding metal porous body and its device |
| CN1211830A (en) * | 1998-10-14 | 1999-03-24 | 深圳市天有实业发展有限公司 | Perforated steel band for battery pole plate and its production technique and special equipment |
| CN202275887U (en) * | 2011-09-20 | 2012-06-13 | 宜春青山能源有限公司 | Lithium ion power battery pole piece wrinkle resistant roller |
| WO2012111815A1 (en) * | 2011-02-18 | 2012-08-23 | 株式会社 東芝 | Method for manufacturing electrode and method for manufacturing battery |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003100286A (en) * | 2001-09-19 | 2003-04-04 | Toyota Motor Corp | Method and apparatus for manufacturing strip electrode |
| CN100495772C (en) * | 2007-05-18 | 2009-06-03 | 郭楚义 | Process for preparing nickel-hydrogen, nickel-cadium cell positive plate |
| CN101352735A (en) * | 2008-08-29 | 2009-01-28 | 中国瑞林工程技术有限公司 | Method for leveling cathode sheet |
| CN102310082B (en) * | 2011-06-07 | 2015-12-02 | 东莞新能源科技有限公司 | pressure roller |
-
2013
- 2013-04-08 CN CN201310118460.XA patent/CN103258997B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09226991A (en) * | 1996-02-21 | 1997-09-02 | Sumitomo Electric Ind Ltd | Method of winding metal porous body and its device |
| CN1211830A (en) * | 1998-10-14 | 1999-03-24 | 深圳市天有实业发展有限公司 | Perforated steel band for battery pole plate and its production technique and special equipment |
| WO2012111815A1 (en) * | 2011-02-18 | 2012-08-23 | 株式会社 東芝 | Method for manufacturing electrode and method for manufacturing battery |
| CN202275887U (en) * | 2011-09-20 | 2012-06-13 | 宜春青山能源有限公司 | Lithium ion power battery pole piece wrinkle resistant roller |
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| CN103258997A (en) | 2013-08-21 |
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Effective date of registration: 20230412 Address after: 014000 Baotou rare earth high tech Industrial Development Zone, Inner Mongolia Autonomous Region Patentee after: INNER MONGOLIA XI'AOKE HYDROGEN STORAGE ALLOY Co.,Ltd. Address before: 014030 No.1 Qinggong South Road, Baotou Rare Earth Development Zone, Inner Mongolia Autonomous Region Patentee before: Inner Mongolia Rare Earth Ovonic High-Power MH/Ni Battery Co.,Ltd. |
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