CN102800839A - Device and method for preparing electrode of battery - Google Patents
Device and method for preparing electrode of battery Download PDFInfo
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- CN102800839A CN102800839A CN2011101345034A CN201110134503A CN102800839A CN 102800839 A CN102800839 A CN 102800839A CN 2011101345034 A CN2011101345034 A CN 2011101345034A CN 201110134503 A CN201110134503 A CN 201110134503A CN 102800839 A CN102800839 A CN 102800839A
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- battery
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- steel shell
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Abstract
The invention relates to a method and a device for preparing an electrode of a battery through direct press forming of powder in a steel shell. The method is characterized by weighing electrode materials required for preparing an entire battery cathode loop and filling the electrode materials into a cathode cavity through one time. A prepared electrode is provided with only one loop. The device for implementing the method is characterized in that the steel shell of the battery is fastened at a battery steel shell retaining device, a counter electrode reserving device is inserted in the center of the steel shell of the battery, a lug boss is embedded in a groove in the center of the bottom in the shell of the battery, and a steel shell extending sleeve is nested on the battery steel shell retaining device.
Description
Technical field
The present invention relates to a kind of preparation method and device thereof of battery electrode, particularly relate to a kind of in battery steel shell the battery electrode preparation method and the device thereof of the direct compression moulding of powder.
Background technology
In the conventional battery technology, if battery electrode is to form with powdered form material compacting, and the box hat of battery is as the collector of electrode, and electrode preparation is generally accomplished at two stations so.Shown in, in a specialized apparatus, the electrode mixture powder of battery is pressed into ring earlier, like Fig. 1; In another station, three or four are encircled another ground and are squeezed into box hat Fig. 2 then; Box hat with in the electrode substance ring is housed, be exactly an electrode of final desired battery, like Fig. 3.In primary alkali zinc manganese dioxide battery and in the rechargeable alkaline zinc manganese dioxide battery, it is a negative electrode, also cries anodal.Main electrode active material is a manganese dioxide.Primary alkali zinc manganese dioxide battery and rechargeable alkaline zinc manganese dioxide battery afterwards respectively tube claim alkaline Mn cell and can fill alkaline Mn cell.
The shortcoming of this method is that a ring is on two different stations, to accomplish; Because ring is to be pressed into box hat, high ring is cracked in process of press in easily, so the height of ring is controlled.A battery electrode generally needs 3 to 4 rings.Must leave the space between ring and the ring, so the box hat space availability ratio reduces.Since in process of press in, ring and box hat friction. cause having powder to drop, the powder that drops can reduce battery performance even cause battery short circuit.Because the friction dry linting, the variation that contacts of box hat and ring causes the Ohmic resistance rising.
The space of interannular all is a random quantity with the big a small amount of of the powder that drops, and this is one of main source of battery performance one modification difference.
The shortcoming of this method also has, and in process of press in, the internal stress of ring increases, even ring did not break at that time,
But the stress of accumulation causes breaking easily at subsequently the ring that charges and discharge in the process, causes electrode performance seriously to descend.
Summary of the invention
The object of the present invention is to provide a kind ofly directly the electrode method for making of powder compression moulding in box hat, a step accomplishes in a station, and it does not have process of press in, does not have box hat and ring friction process, only needs a ring in the box hat, and interannular does not have the space.
Than the conventional battery technology, this law has following advantage.
This law so removed required equipment and operation and the necessary personnel that suppress ring and be pressed into ring from, has improved speed directly powder compression moulding in box hat, falls and loses equipment cost, and reduced the dust in the workshop, has realized dustlessization production.
This law is encircled more complete directly powder compression moulding in box hat; And encircle and can do highly arbitrarily, therefore have only a ring in a box hat, improve speed of production greatly, and no longer included the interannular space, no longer include dry linting, improved the consistency of electrode performance, improved space availability ratio.
This law is directly powder compression moulding in box hat, electrically contacts resistance much smaller than prior art between ring that is pressed into and box hat.
So the cell cathode method for making of powder direct compression moulding in box hat is a kind of reducing cost, and reduces the workshop dust, improves speed of production, the good method of enhancing product performance.
Because the ring of prior art is prone to split, so can not add the hard additive.And new technology provides possibility for adding hard negative electrode interpolation profit.
More importantly be if that the equal diameters of the length of side of square column and cylinder, when high, the volume of square column is 1.27 times of cylinder.The electrode substance of square column has increased by 27%.The volume of square column/high together with diameter circle cylindricality=hd
2/ 0.075hd
2=1.27.Battery case commonly used is cabinet shape mostly.Use prior art, can only use cylindrical ring, cracked because the non-cylindrical ring more is prone in being pressed into the box hat process.Method of the present invention can be made the electrode of straight cylinder of the cylinder bodily form and the various length of sides of various diameters.
So the cell cathode method for making of powder direct compression moulding in box hat is to enhance product performance, and diversifies, and improves speed of production, reduces cost, and reduces the good method of dust.
Method of the present invention is applicable to that battery electrode is to form with powdered form material compacting, and the box hat of battery is as all kinds of batteries of the collector of electrode, and it is two examples wherein that an alkaline Mn cell neutralization can be filled alkaline Mn cell.
Description of drawings
Fig. 1, prior art, the looper machine is processed ring-type to electrode substance earlier
Fig. 2, battery steel shell
Fig. 3, prior art, 3 rings are pressed into box hat one by one, make an electrode of battery, and at alkaline Mn cell, it is a negative electrode, is positive.
Fig. 4, the end view of the device of this patent invention, it is at the band driver state when being about to withdraw from that just in time puts in place.
Fig. 5, the mansion view of patent device
Fig. 6, the another kind of optional structure of patent device.It is the two and half vertically symmetrical garden band of columns that box hat prolongs cover, and it can distinguish side-to-side movement, to let box hat withdraw from.
Fig. 7 is the vertical view of Fig. 6.
Fig. 8, the another kind of optional structure of patent device.Its movable backing ring 12 is transportable, to let box hat 2 withdraw from.It electrode is reserved device is by a left side 14, in 15, the cylinder of right 16 vertical three compositions.
Fig. 9 is the vertical view to electrode reservation device of Fig. 8.
Figure 10 is the device of preparation square column type electrode.
Figure 11, the vertical view of Figure 10.The lateral surface of square band driver 17 is square column types, and square box hat retaining device 18 medial surfaces are square column types, all with the square column type battery steel shell in lateral surface consistent.
Embodiment
Method of the present invention is to realize like this.Take by weighing the required electrode substance of the whole cathode loop of preparation, the device shown in Figure 4 of packing into.Following 3 embodiment will detail the characteristic and the method for operation of this device.
Embodiment 1
Can fill the negative electrode of alkaline Mn cell for No. 5 by following step preparation with method and apparatus of the present invention.
Fig. 4 is the side view for preparing the device of negative electrode by this law.Fig. 5 is the vertical view of this device.Box hat 2 is similar with retaining device 1 interior shape, and size is close, is tight fit, vertically is squeezed into No. 5 battery steel shells 2 in the retaining device 1, occupies stably on the annular collet 4 in the bottom until box hat; Annular collet 4 is an one with retaining device 1, internal diameter be slightly less than box hat 2 internal diameters, make annular backing 4 withstand the box hat wall.Vertically be nested in the retaining device upper end to box hat extension set 10.Battery steel shell extension apparatus 10 is nested in fixing device 1 upper end, and box hat extension set 10 has inboard boss, and box hat extension set 10 moves upward, and lets box hat 2 ejected by backing-out punch 5.Box hat extension set 10 also can outside boss, and shown in 5,1 of box hat extension set 10 and retaining device are also available with sealing ring replacement tongue and groove interface.Box hat extension set 10 also can be between vertically two the and half garden band of columns of symmetry form, as shown in Figure 6, half garden band of column box hat extension set 13, Fig. 7 is 6 vertical view.After preparatory device 8 withdrawed to electrode, 2 half parts of half garden band of column box hat extension set 13 oppositely moved, to let box hat 2 ejected by backing-out punch 5.
Can fill in the alkaline Mn cell an alkaline Mn cell neutralization, be anode to electrode, also is negative pole, and main electrode active material is a metallic zinc glue.Electrode being reserved device 8 vertical insertions in the box hat 2, up to the preparatory device 8 of electrode is pushed up auspicious boss and battery case 2 inner bottom part groove shapes kissings, boss embeds the groove at battery steel shell center.This is in order to ensure to the preparatory device 8 of electrode vertical center in whole process.
Electrode is reserved device 8 can have tapering, to electrode reserve device 8 base diameters be 8 with 90% to 100% of the diameter of ring equal-height position, be preferably in 95% to 100%.It is for the preparatory device 8 of electrode is withdrawed from from ring smoothly that a tapering is arranged.
To such an extent as to if electrode powder viscosity sticks in greatly electrode is reserved on the device, then can on to electrode reservation device, be put the anti-cover 6 of being stained with earlier earlier, and then insert box hat, or after inserting box hat, overlap the anti-down cover 6 of being stained with again from the upper end.Prevent being stained with the ganoid material that cover can be a hydrophobic, like pan paper and brown paper.After electrode reservation device is withdrawed from box hat, must remove the anti-cover of being stained with again.
The electrode powder that mixes, No. 5 batteries about 7 to 13 grams, are packed into electrode is reserved in the cavity between device and box hat 2 and box hat extension set.Band driver 7 downward press-powder end Cheng Huan, the thickness of band driver 7 is more smaller with the cavity of electrode being reserved device than battery case 2, can move up and down.The height of ring is between 3.5 to 4.5 centimetres.When backing-out punch 5 and band driver 7 upwards withdraw from, because box hat extension set 10 has been pushed down box hat, so box hat 2 still rests on original position.After backing-out punch 5 and band driver 7 upwards withdrawed from, the box hat extension set was upwards or to moving mutually to let box hat withdraw from again.
The end surface shape of box hat backing-out punch 5 and battery bottom shape are harmonious, and be indeformable in the process of ejecting to guarantee the box hat bottom.The diameter of backing-out punch 5 is more smaller than the internal diameter of backing cup 4.Box hat backing-out punch 5 moves upward, and from retaining device 1, ejects box hat 2.A cell cathode of being made up of box hat inner annular electrode powder completes.
Embodiment 2
With method 2 of the present invention and the negative electrode of device by No. 1 alkaline Mn cell of following step preparation.
As method 1, vertically be squeezed into No. 1 battery steel shell 2 in the retaining device 1 earlier, occupy stably on the movable backing ring 12 in the bottom until box hat; Vertically be nested in the retaining device upper end to box hat extension set 10.
The electrode powder that mixes, No. 1 battery about 60 to 80 grams, is packed into electrode is reserved in the cavity between device and box hat 2 and box hat extension set.Band driver 7 downward press-powder end Cheng Huan.The height of ring is between 3.5 to 5 centimetres.Band driver 7 moves up then, withdraws from.
Method 2 has 3 places different with method 1.
At first, electrode is reserved device put diaphragm case 9 earlier, replace implementing anti-cover 6 and then the insertion box hat be stained with in 1.The external diameter of electrode being reserved device should be not more than the diameter to electrode of disregarding barrier film.
As shown in Figure 8; The movable backing ring 12 of the bottom of fixing device 1 is the activity template more than two or two; Every of movable backing ring 12 all can be moved laterally, and downwards through after the retaining device, movable backing ring 12 is just from the reposition of trend center at box hat.
As shown in Figure 8, electrode to be reserved device 8 reserve device sheet 14 by vertical cutting paired electrode, electrode is reserved device sheet 15 and electrode is reserved 16 3 of device sheets.Fig. 9 reserves device sheet 14 to electrode, and electrode is reserved device sheet 15, electrode is reserved the mansion view of device sheet 16.Movable backing ring 12 each sheet are to motion mutually; Internal diameter increases, and then electrode is reserved device sheet 14, and electrode is reserved device sheet 15; With electrode is reserved 16 3 of device sheets and is moved downward simultaneously; Release battery steel shell 2, movable then backing ring 12 just automatically resets, and movable backing ring 12 has just covered the edge of the top of box hat 2.Then middle a slice of electrode reservation device 8 being reserved device sheet 15 to electrode upwards withdraws from earlier; To electrode reserve 14 pairs of electrodes of device sheet reserve device sheet 16 to the center near; So electrode is reserved device sheet 14 and electrode reservation device sheet 15 has just been broken away from electrode retaining collar; Then electrode is reserved device sheet 14 and electrode is reserved device sheet 16 is moved up simultaneously and since the movable backing ring 12 after resetting cover 2 above, battery steel shell 2 is being reserved device sheet 14 to electrode; Electrode is reserved device sheet 15, electrode is reserved to be dropped downwards after device sheet 16 is removed.A cell cathode of being made up of box hat and inner annular electrode powder completes, and diaphragm case is also good and sound in advance.
Method 1 and 2 all interchangeable combination of device and corresponding operating unit.
Make the negative electrode of an alkaline Mn cell of square body with method and apparatus of the present invention.The bottom surface length of side of square column is identical with the diameter of No. 7 batteries.
Can be undertaken by implementation method 1.Like Figure 10, the medial surface of retaining device is to be all square column type mutually and to be tight fit with the box hat shape.Figure 11 is the mansion view of Figure 10.Square band driver 17 lateral surfaces are square cylindricality, and square box hat retaining device 18 medial surfaces are square column types, all with the square column type battery steel shell in lateral surface consistent.But the shape of square band driver 17 middle cavities and diameter are still identical with former band driver 7.The electrode powder of packing into is than No. 7 corresponding increases by 15% to 30% of battery, about about 5 to 7 grams.Other hardware shapes are similar with preparation embodiment 1 with preparation technology.
The method also can be used for preparing the battery electrode of other right cylinder bodily forms.
Claims (10)
1. the preparation facilities of a battery electrode is characterized in that, battery steel shell (2) is fastened in the battery steel shell fixing device (1); Electrode is reserved device (8) be provided with a boss, electrode is reserved device (8) be inserted in battery steel shell (2) center, the boss of electrode reservation device (8) is embedded in the groove at battery case inner bottom part center; Box hat extension set (10) is nested on the battery steel shell fixing device (1).
2. according to the described preparation facilities of claim 1, it is characterized in that electrode is reserved device (8) has tapering, it is (8) and 90% to 100% of the diameter that encircles equal-height position that electrode is reserved device (8) base diameter, is preferably in 95% to 100%; Electrode reserved on device (8) bottom be designed with boss, boss and battery case inner bottom part groove shapes kissing, boss is embedded in battery case inner bottom part groove.
3. directly according to the described preparation facilities of claim 1, it is characterized in that electrode is reserved device (8) vertically go up by the preparatory device sheet left side of electrode (14), electrode is reserved in the device sheet (15), electrode is reserved right (16) three compositions of device sheet.
4. according to the described preparation facilities of claim 1, it is characterized in that the inboard shape of box hat extension set (10) is identical with battery steel shell, have the tongue and groove structure to be fixed on fixing device (1) upper end.
5. according to the described preparation facilities of claim 1, it is characterized in that box hat extension set (13) is the two and half garden band of columns.
6. according to the described preparation facilities of claim 1, it is characterized in that the lateral surface of band driver (17) is square cylindricality, or regular polygon shape.
7. according to the described preparation facilities of claim 1, it is characterized in that the backing ring of the bottom of fixing device (1) is the activity template (12) more than two or two.
8. prepare the method for electrode according to the described preparation facilities of claim 1, it is characterized in that, take by weighing preparation whole cathode loop required electrode substance, the disposable box hat of packing into (2) and electricity reserved the cathode cavity between the device (8) to the utmost point, the electrode that makes has only a ring.
9. according to the described method of claim 8, it is characterized in that, to electrode reserve put earlier on the device (8) anti-be stained with cover (6) and then insert box hat or insert box hat after again from the upper end cover prevent being stained with cover down.
10. according to the described method of claim 8, it is characterized in that, electrode is reserved put barrier film (9) and then insertion box hat on the device (8) earlier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110134503.4A CN102800839B (en) | 2011-05-23 | 2011-05-23 | Device and method for preparing electrode of battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110134503.4A CN102800839B (en) | 2011-05-23 | 2011-05-23 | Device and method for preparing electrode of battery |
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| Publication Number | Publication Date |
|---|---|
| CN102800839A true CN102800839A (en) | 2012-11-28 |
| CN102800839B CN102800839B (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110134503.4A Active CN102800839B (en) | 2011-05-23 | 2011-05-23 | Device and method for preparing electrode of battery |
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| JPS5530187A (en) * | 1978-08-25 | 1980-03-03 | Japan Storage Battery Co Ltd | Manufacturing method of battery |
| CN1261835A (en) * | 1998-05-13 | 2000-08-02 | 三菱电机株式会社 | Electrode of green compact for discharge surface treatment, method of producing the same, method and apparatus for discharge surface treatment and green compact for discharge surface treatment |
| CN1301405A (en) * | 1998-05-21 | 2001-06-27 | 松下电器产业株式会社 | Cylindrical battery and method and device for manufacturing thereof |
| CN1366317A (en) * | 2001-01-17 | 2002-08-28 | 住友特殊金属株式会社 | Ring shaped magnetic shaping device and its used metal mould and ring shaped magnet shaping method |
| CN2758987Y (en) * | 2004-12-20 | 2006-02-15 | 丹东金丸集团有限公司 | Ring press for producing alkali-Mn cells |
| CN101192677A (en) * | 2007-11-23 | 2008-06-04 | 潮州正龙电池工业有限公司 | Process for inversely inserting battery powder ring into steel shell and ring inserting device thereof |
| CN101202143A (en) * | 2007-11-09 | 2008-06-18 | 钢铁研究总院 | High performance radial hot pressing magnet ring and preparation method thereof |
| CN201383518Y (en) * | 2009-03-25 | 2010-01-13 | 横店集团东磁股份有限公司 | Core bar of alkaline battery powder ring forming die |
| CN101641815A (en) * | 2007-03-26 | 2010-02-03 | 吉列公司 | Battery electrodes and batteries including such electrodes |
| CN102306842A (en) * | 2011-09-08 | 2012-01-04 | 浙江吉能电池科技有限公司 | Manufacturing method of cylindrical lithium ion battery |
-
2011
- 2011-05-23 CN CN201110134503.4A patent/CN102800839B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5530187A (en) * | 1978-08-25 | 1980-03-03 | Japan Storage Battery Co Ltd | Manufacturing method of battery |
| CN1261835A (en) * | 1998-05-13 | 2000-08-02 | 三菱电机株式会社 | Electrode of green compact for discharge surface treatment, method of producing the same, method and apparatus for discharge surface treatment and green compact for discharge surface treatment |
| CN1301405A (en) * | 1998-05-21 | 2001-06-27 | 松下电器产业株式会社 | Cylindrical battery and method and device for manufacturing thereof |
| CN1366317A (en) * | 2001-01-17 | 2002-08-28 | 住友特殊金属株式会社 | Ring shaped magnetic shaping device and its used metal mould and ring shaped magnet shaping method |
| CN2758987Y (en) * | 2004-12-20 | 2006-02-15 | 丹东金丸集团有限公司 | Ring press for producing alkali-Mn cells |
| CN101641815A (en) * | 2007-03-26 | 2010-02-03 | 吉列公司 | Battery electrodes and batteries including such electrodes |
| CN101202143A (en) * | 2007-11-09 | 2008-06-18 | 钢铁研究总院 | High performance radial hot pressing magnet ring and preparation method thereof |
| CN101192677A (en) * | 2007-11-23 | 2008-06-04 | 潮州正龙电池工业有限公司 | Process for inversely inserting battery powder ring into steel shell and ring inserting device thereof |
| CN201383518Y (en) * | 2009-03-25 | 2010-01-13 | 横店集团东磁股份有限公司 | Core bar of alkaline battery powder ring forming die |
| CN102306842A (en) * | 2011-09-08 | 2012-01-04 | 浙江吉能电池科技有限公司 | Manufacturing method of cylindrical lithium ion battery |
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| Publication number | Publication date |
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| CN102800839B (en) | 2014-12-10 |
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