WO2015037581A1 - 鉛蓄電池用のペースト式極板の製造方法及び該方法に用いる極板クリーニング装置 - Google Patents

鉛蓄電池用のペースト式極板の製造方法及び該方法に用いる極板クリーニング装置 Download PDF

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Publication number
WO2015037581A1
WO2015037581A1 PCT/JP2014/073801 JP2014073801W WO2015037581A1 WO 2015037581 A1 WO2015037581 A1 WO 2015037581A1 JP 2014073801 W JP2014073801 W JP 2014073801W WO 2015037581 A1 WO2015037581 A1 WO 2015037581A1
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WIPO (PCT)
Prior art keywords
electrode plate
filling
filled
spiral
electrode
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.)
Ceased
Application number
PCT/JP2014/073801
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English (en)
French (fr)
Japanese (ja)
Inventor
良晃 伊東
昭文 野村
啓介 福原
久喜 竹内
伸一 佐野
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Resonac Corp
Original Assignee
Shin Kobe Electric Machinery 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.)
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Application filed by Shin Kobe Electric Machinery Co Ltd filed Critical Shin Kobe Electric Machinery Co Ltd
Priority to GB1503649.4A priority Critical patent/GB2533976B8/en
Priority to IN1319DEN2015 priority patent/IN2015DN01319A/en
Priority to JP2015502005A priority patent/JP5737487B1/ja
Publication of WO2015037581A1 publication Critical patent/WO2015037581A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/14—Electrodes for lead-acid accumulators
    • H01M4/16—Processes of manufacture
    • H01M4/20—Processes of manufacture of pasted electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/14—Electrodes for lead-acid accumulators
    • H01M4/16—Processes of manufacture
    • H01M4/20—Processes of manufacture of pasted electrodes
    • H01M4/21—Drying of pasted electrodes
    • 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

Definitions

  • the present invention relates to a method for producing a paste-type electrode plate for a lead storage battery and an electrode plate cleaning device used in the method.
  • the paste-type electrode plate is manufactured by filling and pressing a paste-like active material on a lattice substrate made of lead or a lead alloy as a raw material, followed by an initial drying and an aging / drying process.
  • a lattice substrate is often used in which longitudinal and transverse bones are arranged in a lattice shape inside the frame bone.
  • the lattice substrate 1 has longitudinal bones 3 and transverse bones 4 arranged in a lattice shape inside a frame bone 2 that forms the outer periphery, and a long or short direction of the frame bone 2. It is formed by providing two ears 5 protruding outward. Of the two ears 5, the lower ear in FIG.
  • the grid substrate is filled and pressed with a paste-like active material and held, and after initial drying, an electrode plate is produced through aging and drying processes. Then, the positive electrode plate and the negative electrode plate from which the ear part on the lower side of the electrode plate is removed are alternately stacked via the separator, and the electrode parts of the same polarity are welded to each other electrically.
  • a lead storage battery is produced by connecting and forming a group of electrode plates.
  • the method for filling and pressing the paste-like active material on the lattice substrate is, for example, as follows. First, the grid substrate is placed flat on a belt conveyor and sequentially transported, and the paste substrate is filled with the paste active material passing under the filling machine equipped with a hopper containing the paste active material to form a filled electrode plate. . Thereafter, pressure is applied through the forming roller device, and pressing is performed from the surface on the filling side and the surface on the opposite side to suppress variation in the thickness of the filling electrode plate.
  • the paste-like active material has a high viscosity, and when the lattice substrate is filled with the active material, an extra active material may stick to the filling machine, and this extra active material is on the filling side of the filling electrode plate.
  • an excess active material may once adhere to the forming roller and transfer to the filling electrode plate surface again.
  • a part of the active material may be peeled off and temporarily attached to the forming roller, and may be transferred again to the filling electrode plate surface. In this way, there is a risk that an aged and dried electrode plate may be produced with an extra active material attached.
  • the excess active material adhering to the electrode plate may break through the separator and cause a short circuit when the positive electrode plate and the negative electrode plate are laminated via the separator.
  • the pressure applied to the group of electrode plates is concentrated at the location where the active material is excessively attached, the separator is compressed, and the distance between the positive and negative electrode plates is shortened. An osmotic short circuit is likely to occur during the discharge state.
  • Patent Document 1 discloses that after the initial drying of the filling electrode plate filled with the pasty active material, the excess active material on the end face of the filling electrode plate is brushed. A method for removing the image is disclosed.
  • Patent Document 2 discloses that a high-strength organic nonwoven fabric is sandwiched between the separator and the electrode plate to suppress damage to the separator.
  • the method of removing excess active material by applying a brush as in Patent Document 1 may damage the active material held on the filled electrode plate or cause the active material to fall off.
  • the technique of sandwiching a strong organic nonwoven fabric between the electrode plates as in Patent Document 2 has a problem that the density of the organic nonwoven fabric is high, so that the amount of electrolyte retained is reduced and the battery capacity during discharge is reduced.
  • An object of the present invention is to remove the excess active material adhering to the electrode plate surface without damaging the necessary active material held on the filled electrode plate, thereby preventing the positive and negative electrode plates from being short-circuited. It is in providing the manufacturing method of.
  • Another object of the present invention is to provide an electrode plate cleaning device suitable for carrying out the method of the present invention.
  • the present invention includes a step of manufacturing a filled electrode plate by filling a grid substrate made of lead or a lead alloy with a paste-like active material and then pressing the lattice substrate filled with the active material, and initial drying the filled electrode plate For lead-acid batteries through an initial drying process, a cleaning process for removing excess active material from the surface of the initially dried filling electrode plate, and an aging drying process for aging and drying the initially dried filling electrode plate after the cleaning process
  • the manufacturing method of the paste type electrode plate for lead acid batteries which manufactures this paste type electrode plate is made into the object of improvement.
  • a spiral airflow generator that generates a spiral airflow that flows spirally around the virtual center line is prepared, and the virtual centerline is placed on the electrode plate surface of the filled electrode plate.
  • a spiral air flow is blown onto the electrode plate surface of the filling electrode plate so as to extend along the plate. Since the spiral air flow can also obtain air pressure in the direction orthogonal to the discharge direction of the air flow, it is combined with the air pressure in the discharge direction, and compared with the air flow that goes straight, the air flow is blown to the target object. A big impact force can be given.
  • the virtual center line extends along the electrode plate surface of the filled electrode plate means not only when the virtual center line is parallel to the electrode plate surface, but also between the virtual center line and the electrode plate surface. This includes cases where there is a slight inclination angle between them. The inclination angle is preferably less than 5 degrees.
  • the method of the present invention it is possible to remove the excess active material adhering to the electrode plate surface of the filled electrode plate without damaging the necessary active material held on the filled electrode plate. A short circuit between the positive electrode and the negative electrode due to the substance can be prevented. Moreover, production efficiency is not reduced.
  • the spiral airflow generator includes one or more air nozzles
  • the one or more air nozzles are preferably arranged such that the virtual center line extends along the electrode plate surface of the filling electrode plate.
  • the spiral air flow generator includes one air nozzle
  • a spiral is formed on the entire plate surface by causing a relative movement between the one air nozzle and the filling plate. Air flow should be applied. If the spiral airflow generator has a plurality of air nozzles, the plurality of air nozzles should be arranged at intervals so that the spiral airflow can be applied to the entire electrode plate surface. Good.
  • the one or more air nozzles are arranged so that the virtual center line extends along the electrode plate surface of the filling electrode plate, and the remaining one or more air nozzles
  • the air nozzle can be arranged such that the angle between the virtual center line and the electrode plate surface of the filled electrode plate is an inclination angle of 5 degrees or more and 30 degrees or less. In this way, the situation where the spiral air flow coming out of one or more air nozzles contacts the electrode plate surface, and the spiral air flow coming out of the remaining one or more air nozzles contacts the electrode plate surface. Since the situation is different, excess active material adhering to the electrode plate surface of the filled electrode plate can be more reliably removed.
  • the spiral airflow generator has two air nozzle groups each composed of a plurality of air nozzles
  • the two air nozzle groups are arranged at a predetermined interval so that one filling electrode plate is positioned between the two air nozzle groups.
  • both electrode plate surfaces facing each other in the thickness direction of one filling electrode plate At the same time, excess active material can be removed.
  • an electrode plate holding device that holds a plurality of filled electrode plates in such a manner that the electrode plate surface extends in the vertical direction and is spaced between two adjacent charged electrode plates.
  • the spiral air flow generating device and the electrode plate holding device cause relative movement in the direction in which the plurality of filled electrode plates are arranged between the plurality of filled electrode plates and the spiral air flow.
  • a spiral air flow is caused to flow into the interval and sprayed to the electrode plate surface of the filling electrode plate. If it does in this way, an excess active material can be sequentially removed from the electrode plate surface of several filling electrode plates.
  • the spiral air flow generator and the electrode plate holding device are relatively moved in a direction perpendicular to the direction in which the plurality of filled electrode plates are arranged between the plurality of filled electrode plates and the spiral air flow.
  • a spiral air flow may be allowed to flow into the gap while spraying the electrode plate surface of the filling electrode plate. In this way, even when the number of air nozzles provided in the spiral airflow generator is small, excess active material can be removed from the entire electrode plate surface.
  • the relative movement in the direction perpendicular to the direction in which the plurality of filled electrode plates are arranged is a reciprocating motion in the direction perpendicular to the direction in which the plurality of filled electrode plates are arranged.
  • a reciprocating motion is adopted, a spiral air flow can be repeatedly applied to the electrode plate surface, so that the excess active material can be more reliably removed.
  • the speed of relative movement in the direction in which the plurality of filled electrode plates formed between the plurality of filled electrode plates and the spiral air flow is slower than the reciprocating speed.
  • a spiral air flow can be reliably applied to the electrode plate surface.
  • the distance of one reciprocating motion of the reciprocating motion is that of the filled electrode plate positioned upward while being held by the electrode plate holding device.
  • the distance is preferably at least twice the length of one side of the frame bone. In this way, a spiral air flow can be blown over the entire surface of the electrode plate, so that it is possible to reliably prevent a portion that does not receive the spiral air flow from remaining.
  • the electrode plate holding device conveys a plurality of active material charging electrode plates in one direction in which a plurality of filled electrode plates are arranged, thereby causing relative movement in the direction in which the plurality of filled electrode plates are arranged. It can be configured to occur. In this way, the loading and unloading of the filled electrode plate to and from the electrode plate holding device can be automated, so that it becomes easy to automate the production line from the initial drying to the aging drying.
  • the filling electrode plate When the pair of ears provided on the filling electrode plate are suspended on the electrode plate holding device and transported in a state where the filling electrode plate is suspended, the filling electrode plate can be easily attached to the electrode plate holding device. .
  • the spiral airflow generation device includes two or more air nozzle groups including one or more air nozzles, and the two or more air nozzle groups are set in a predetermined direction in a direction orthogonal to the direction in which a plurality of filled electrode plates are arranged. You may arrange
  • the spiral airflow generator reciprocates two or more air nozzle groups in a direction orthogonal to the direction in which a plurality of filled electrode plates are arranged. If it does in this way, when two adjacent filling electrode plates are made into one set, a spiral air flow can be simultaneously sprayed to the electrode plate surfaces of two or more sets of filling electrode plates.
  • the reciprocating motion of the two adjacent air nozzle groups is reversed. This prevents re-deposition of excess active material on the surface of the filled electrode plate.
  • the active material adhering to the pair of end faces in the thickness direction of the frame bone of the filled electrode plate can be removed with a brush, and the effect of preventing a short circuit can be further enhanced.
  • An electrode plate cleaning device used for carrying out the method of the present invention comprises a spiral air flow generator that generates a spiral air flow spirally around an imaginary center line, and a plurality of filled electrode plates. And an electrode plate holding device that holds the plate surface with an interval between two adjacent electrodes.
  • the spiral airflow generator is arranged to blow a spiral airflow onto the electrode plate surface of the filling electrode plate such that the virtual center line extends along the electrode plate surface of the filling electrode plate.
  • the spiral air flow generator and the electrode plate holding device are spaced apart from each other while causing a relative movement in the direction in which the plurality of filled electrode plates are arranged between the plurality of filled electrode plates and the spiral air flow.
  • a spiral air flow is caused to flow in to remove excess active material adhering to the electrode plate surface of the filling electrode plate. With this cleaning device, the method of the present invention can be reliably carried out.
  • (A) is the schematic which shows the arrangement
  • (B) is the helical air which comes out of an air nozzle The relationship between the flow and the filling plate is shown. It is a figure which shows the positional relationship of an air nozzle and several filling electrode plates. It is the schematic which shows the state in which the several air nozzle in the 2nd Embodiment of this invention was arrange
  • (A) And (B) is a figure which shows the positional relationship of the air nozzle in 3rd Embodiment, and several filling electrode plates.
  • the lattice substrate includes one produced by casting or expanding lead or a lead alloy.
  • the lead alloy is mainly made of lead and added with tin, calcium, antimony and the like.
  • paste-like positive electrode active material or paste-like negative electrode active material (hereinafter referred to as paste-like active material) used in the present embodiment is filled and held in the lattice substrate.
  • This pasty active material is not particularly limited.
  • lead powder mainly composed of lead monoxide, water, sulfuric acid, etc.
  • Additional additives such as cut fiber, carbon powder, lignin, barium sulfate, lead tan are added according to the required characteristics of the positive and negative electrodes.
  • a paste-like positive electrode active material or a paste-like negative electrode active material prepared by kneading can be used.
  • the lattice substrate 1 as shown in FIG. 1 passing under the filling machine having the hopper containing the paste-like active material described above is filled with the paste-like active material, and the lattice substrate filled with the active material is seen from both sides. Press to produce a filled electrode plate.
  • the filling amount of the pasty active material to be filled into the lattice substrate 1 is calculated based on the design capacity of the battery, and the vertical bone 3 and the lateral bone 4 inside the frame bone 2 of the lattice substrate 1 are covered with the pasty active material. It is preferable to fill the paste active material so that the paste-like active material is filled to the thickness of the frame 2 or more.
  • the forming roller is one in which a pair of rollers rotate and sandwiches the conveyed electrode plate from above and below to apply pressure, and an active material layer having a substantially uniform thickness can be formed.
  • the active material layer can be more uniformly filled by arranging a plurality of forming rollers and pressing the filling electrode plate.
  • the filled electrode plates are initially dried to such an extent that the active materials do not stick to each other when the filled electrode plates are stacked.
  • the drying conditions are set so as not to deviate from the range of the amount of water in the active material required in the subsequent aging drying step.
  • the initial drying method can be selected from hot air drying, infrared drying and the like.
  • extra paste-like active material adhering to the filling machine and the forming roller may be transferred to the surface of the filling electrode plate filled with a predetermined amount of paste-like active material.
  • This excessively attached active material breaks through the separator and short-circuits between the positive and negative electrode plates, and the distance between the positive and negative electrode plates is shortened, so that problems such as permeation short circuit are likely to occur.
  • a method of removing the active material by blowing a spiral air flow onto the electrode plate surface of the filled electrode plate after the initial drying is used.
  • the electrode plate surface is less likely to be damaged and the active material is less likely to fall off.
  • air nozzles that blow the air flow. However, if an air nozzle of a type in which the air flow goes straight is used, it is difficult to accurately blow the air flow to the target position, so the effect of removing excess active material is small.
  • Spiral air flow is, for example, a method of discharging compressed air along a spiral groove to a tubular air nozzle with a spiral groove on the inner wall, and a small diameter side opening of a hollow, substantially frustoconical nozzle guide.
  • an air nozzle is connected, the air nozzle is rotated along the inner wall surface of the nozzle guide, and discharged from the large-diameter side opening.
  • FIG. 2 shows a schematic diagram of an air nozzle portion that discharges a spiral air flow used in the present embodiment.
  • the air nozzle 6 made of a flexible material is connected to the small-diameter side opening of the nozzle guide 7 and the compressed air is discharged, the air nozzle 6 rotates by itself along the inner wall surface of the nozzle guide 7 to generate a spiral air flow. 8 occurs.
  • the spiral air flow 8 can make the air blow range wider than the straight air flow.
  • air pressure can be obtained in a direction perpendicular to the discharge direction of the air flow, combined with the air pressure in the discharge direction, a larger impact force is applied to the object to which the air flow is blown than the air flow that travels straight. be able to.
  • FIG. 3 (A) schematically shows the main part of the first embodiment of the method for producing a paste type electrode plate for a lead storage battery according to the present invention and the electrode plate cleaning device used in the method.
  • FIG. 3B shows the relationship between the air nozzle 6 and the filling electrode plate 10.
  • a pair of ears 5 and 5 are suspended on a pair of belt conveyors 9 and 9 and the filled electrode plate 10 is transported in a state where it hangs down at a predetermined interval.
  • the belt conveyors 9 and 9 each have a plurality of fitting portions provided with recesses into which the pair of ears 5 and 5 are fitted, with a predetermined interval in the belt moving direction. Has been.
  • the filling electrode plate 10 is positioned by the presence of the fitting portion.
  • the pair of belt conveyors 9 and 9 are used to form a plurality of filled electrode plates 10 with the electrode plate surface extending in the vertical direction and spaced between two adjacent charged electrode plates 10 and 10.
  • An electrode plate holding device for opening and holding is configured.
  • the filling electrode plate 10 has a weight of 900 g or more, and even if the spiral air flow 8 is blown, it is not greatly blown.
  • a simplified electric slider 12 is fixed to a frame 13.
  • the air nozzle 6 is attached to a gripper 14 that slides in the horizontal direction by the electric slider 12.
  • the gripper 14 is driven by a linear servo motor (not shown) of the electric slider 12 and reciprocates along the frame length direction of the filling electrode plate 10 above the filling electrode plate 10.
  • the air nozzle 6 attached to the gripper 14 is disposed so that the virtual center line C extends along the electrode plate surface of the filling electrode plate 10.
  • the virtual center line C is the electrode plate surface of the filling electrode plate 10 at a position above the gap between the two filling electrode plates 10, 10.
  • the air nozzle 6 In the state where the air nozzle 6 is arranged so as to be substantially parallel to the air nozzle 6, the air nozzle 6 is blown in a direction orthogonal to the direction in which the filling electrode plates are arranged while blowing the spiral air flow 8 from the air nozzle 6. Performs reciprocating slide operation. As a result, the spiral air flow 8 passes through the gap between the two filled electrode plates 10, 10 and is blown onto the opposite electrode plate surfaces of the two filled electrode plates 10, 10. The excess adhering active material 11 is removed. In addition, you may make it blow out the pulsed air injected from the air nozzle 6 at a short space
  • the width between the pair of belt conveyors 9 and 9 can be adjusted so that filled electrode plates of different sizes can be suspended and transported.
  • the reciprocation width of the electric slider 12 can be changed by adjusting a controller (not shown).
  • this reciprocating motion width is adjusted to a width equal to or larger than the length of the frame bone 2 (FIG. 1) disposed between the pair of ear portions 5 and 5 of the filled electrode plate 10, spiral air is applied to the entire electrode plate surface. A flow can be sprayed, which is preferable.
  • the belt conveyors 9 and 9 are temporarily stopped and the electric slider 12 is reciprocated.
  • the spiral airflow 8 may be passed through the gap between the filled electrode plates 10 and sprayed onto the electrode plate surface while transferring a plurality of filled electrode plates 10.
  • the belt conveyors 9 and 9 are not temporarily stopped, it is preferable that excess adhering active materials can be removed on the continuous production line and the production efficiency is not lowered.
  • the length direction of the frame bone 2 positioned between the both ear portions 5, 5 of the filling electrode plate 10 is the conveying direction (a plurality of filling electrode plates).
  • the pair of belt conveyors 9 and 9 carry out a carrying operation in synchronization with each other so that they are not carried in a state that is in a phase with respect to the direction in which they are lined up and down, and the carrying speed can be adjusted using a controller (not shown).
  • the air nozzle 6 and the electric slider 12 constitute a part of a spiral airflow generator that generates a spiral airflow.
  • 3 (A) and 3 (B) do not show the compressed air generator or the like.
  • the compressed air is supplied by piping from an air compressor (not shown) to the air nozzle 6.
  • the supply air pressure can be adjusted by an air regulator (not shown).
  • the filling electrode plate 10 is suspended in the transport direction with a predetermined interval, and a spiral air flow 8 is introduced from above the filling electrode plate 10 into the electrode plate gap between the two filling electrode plates 10. Then, a spiral air flow 8 is blown onto the electrode plate surface.
  • the electric slider and the air nozzle 6 are arranged along one frame 13 of the two frames 13 extending in the vertical direction shown in FIG. A spiral air flow may be introduced from the side (from the lateral direction) into the gap between the electrode plates of the two filled electrodes to remove excess adhering active material from the electrode plate surface.
  • the electrode plate holding device has the function of moving the filling electrode plate 10, but the electrode plate holding device does not have the function of moving the filling electrode plate 10, and the spiral airflow generator
  • a function of moving the air nozzle 6 in the direction in which the plurality of filling electrode plates 10 are arranged is provided, and a plurality of filling electrodes are provided between the plurality of filling electrode plates 10 and the spiral air flow 8. While causing relative movement in the direction in which the plates 10 are arranged, a spiral air flow may be introduced into the interval between the two filled electrode plates and sprayed onto the electrode plate surface of the filled electrode plates.
  • [Second Embodiment] 5 (A) to 5 (C) schematically show a main part of a second embodiment of a method of manufacturing a paste type electrode plate for a lead storage battery according to the present invention and an electrode plate cleaning device used in the method. Has been.
  • the spiral airflow generator includes four air nozzles 6A to 6D attached to the gripper 14 '.
  • the gripper 14 ′ extends in a direction orthogonal to the direction in which the electric slider 12 extends (the direction in which the plurality of filled electrode plates 10 are arranged).
  • the gripper 14 ′ reciprocally slides between the two frames by the electric slider 12.
  • the first air nozzle group is constituted by the two air nozzles 6A and 6B
  • the second air nozzle group is constituted by the two air nozzles 6C and 6D.
  • the first air nozzle group consisting of the air nozzles 6A and 6B and the second air nozzle group consisting of the air nozzles 6C and 6D are filled between the first air nozzle group and the second air nozzle group. It arrange
  • the air nozzles 6 ⁇ / b> A and 6 ⁇ / b> C are arranged so that the virtual center line extends along the electrode plate surface of the filling electrode plate 10, and the air nozzles 6 ⁇ / b> B and 6 ⁇ / b> D are between the virtual center line and the electrode plate surface of the filling electrode plate 10.
  • the inclination angle formed by the axis of the nozzle guide of the nozzle guide and the frame 13 (vertical direction) is 5 to 30 so that the angle is 5 to 30 degrees (in other words, the inclined air nozzles 6B and 6D). Is held by the gripper 14 'so that it is in the range of degrees).
  • a spiral air flow can be blown onto the electrode plate surface of the filled electrode plate 10 in a substantially elliptical range having a major axis in the direction in which the filled electrode plate 10 hangs down.
  • the air nozzle 6 is not moved up and down in the drooping direction of the filling electrode plate, but only moved along the length direction of the frame bone. It becomes possible to spray.
  • the situation where the spiral air flow coming out of the air nozzles 6A and 6C is in contact with the electrode plate surface is different from the situation where the spiral air flow coming out of the air nozzles 6B and 6D is in contact with the electrode plate surface.
  • the excess active material adhering to the electrode plate surface of the filling electrode plate 10 can be more reliably removed.
  • the distance between the air nozzle 6 and the filling electrode plate 10 can be adjusted by fixing the air nozzle 6 to the gripper 14 'using a fitting with a variable mounting position.
  • the electrode plate holding device has the function of moving the filling electrode plate 10, but the electrode plate holding device does not have the function of moving the filling electrode plate 10, and the spiral airflow generator
  • a function of moving the air nozzles 6A to 6D in the direction in which the plurality of filled electrode plates 10 are arranged is provided between the plurality of filled electrode plates 10 and the spiral air flow 8. While causing a relative movement in the direction in which the filled electrode plates 10 are arranged, a spiral air flow may be caused to flow into the interval between the two filled electrode plates and sprayed onto the electrode plate surface of the filled electrode plate.
  • the air nozzle group is used as a pair of ear portions 5 and 5 of the filling electrode plate 10 in the same manner as the first and second air nozzle groups. They may be arranged at a predetermined interval over a length range equal to or greater than the length of the frame bone 2 (FIG. 1) disposed between them. If it does in this way, a spiral air flow can be sprayed on the whole electrode plate surface of the filling electrode plate 10 only by having a function to move the filling electrode plate 10 in the electrode plate holding device. The pulsed air jetted at short intervals may be blown out from the air nozzles 6A to 6D.
  • FIG. 6 schematically shows a main part of a third embodiment of a method for producing a paste-type electrode plate for a lead storage battery according to the present invention and an electrode plate cleaning device used in the method.
  • the spiral airflow generator includes a plurality (three in FIG. 6) of air nozzle groups including one or more air nozzles (one in FIG. 6).
  • an air nozzle 61 is mounted on the electric slider 12A supported by the pair of frames 13A and 13A via a gripper (not shown), and the electric slider 12B supported by the pair of frames 13B and 13B.
  • the air nozzle 62 is mounted via a gripper (not shown), and the air nozzle 63 is mounted on the electric slider 12C supported by the pair of frames 13C and 13C via a gripper (not shown).
  • the three air nozzle groups or frames 13A to 13C are arranged in a direction orthogonal to the direction in which the plurality of filling electrode plates are arranged at an interval substantially equal to the interval between the two filling electrode plates 10 adjacent to each other. ing.
  • the electric sliders 12A to 12C of the spiral air flow generator reciprocate the three air nozzles 61 to 63 in a direction orthogonal to the direction in which the plurality of filled electrode plates 10 are arranged.
  • the three air nozzles 61 to 63 are made to correspond to three pairs of two adjacent electrode plates, and drying is performed. Can do.
  • the filled electrode plate is transported from the state shown in FIG. 7A to the state shown in FIG. 7B, the three air nozzles 61 through the gap between a pair of adjacent two charged electrode plates. 63 is arranged correspondingly once.
  • the reciprocating motion of the air nozzles 61 to 63 included in the two adjacent air nozzle groups has the motion direction reversed. If it does in this way, the effect which prevents reattachment of the excess active material to the surface of a filling electrode plate will be acquired.
  • pulsed air injected at short intervals may be blown out from the air nozzles 61 to 63.
  • the active material may protrude from the frame bone 2 and adhere to the end surface in the thickness direction of the frame bone 2.
  • the attached active material may peel off due to vibration during use of the lead-acid battery, deterioration of the active material, etc., and a short circuit may occur. Therefore, it is preferable to remove the active material adhering to the end face in the thickness direction of the frame bone 2 after the initial drying of the filling electrode plate 10 or after spraying the spiral air flow 8.
  • a pair of brushes are rotated, and the frame bone 2 is passed between the brushes. This can be done easily by brushing the frame bone 2.
  • a brush can consider a wire, a synthetic resin, and an animal thing, it is preferable to use a wire brush from an intensity
  • the extra active material attached to the electrode plate surface on the production line The air nozzle reciprocates the frame bone of the filling electrode plate facing the air nozzle over a distance longer than the frame bone length, and the spiral air flow is inserted into the electrode plate gap of the filling electrode plate.
  • a spiral air flow is blown out from a plurality of air nozzles arranged one after the other in the direction in which the filling electrode plate is transferred, and the plurality of air nozzles span the frame length of the opposed filling electrode plate.
  • the active material adhering to the end face in the thickness direction of the frame of the filled electrode plate can be removed with a brush and the effect of preventing a short circuit can be further enhanced.
  • Positive and negative lattice substrate Vertical: 395 mm x Horizontal: 142 mm x Thickness: 6 mm
  • Negative electrode lattice substrate Vertical: 395 mm x Horizontal: 142 mm x Thickness: 4 mm
  • a cast lattice substrate was prepared.
  • the composition of the paste-like positive and negative electrode active material is not particularly limited, but lead powder containing lead monoxide, water, sulfuric acid, etc. (cut fiber, carbon powder, lignin, sulfuric acid according to the characteristics of the positive electrode and the negative electrode) Filled with a hopper containing the above-mentioned paste-like active material by moving the above-mentioned lattice substrate laid down on a belt conveyor, which may be added with additives such as barium and red lead) When passing under the machine, it was filled with a pasty active material and pressed with a forming roller to produce a filled electrode plate. The filling amount of the paste-like active material was adjusted so that the dry mass was 1150 g for the positive electrode and 900 g for the negative electrode. Thereafter, both ears of the prepared filled electrode plate were suspended on a belt conveyor and transported in a state where the filled electrode plate was suspended to perform initial drying by blowing warm air. Thereafter, the steps described below were performed.
  • Example 1 As shown in FIG. 3 (A), one air nozzle 6 is attached to the electric slider 12, and the distance between the frame 2 of the filling electrode plate 10 facing this and the nozzle guide large-diameter side opening of the air nozzle 6 is 20 mm. It adjusted so that it might become.
  • the interval between the two adjacent electrode plates 10 and 10 was set to 20 mm and suspended on the belt conveyors 9 and 9 to be suspended. Without driving the belt conveyors 9 and 9 and with the filling electrode plate 10 being stationary, the spiral air flow discharged from the air nozzle 6 is the gap between the electrode plates of the two filling electrode plates 10 and 10 adjacent to each other.
  • the air nozzle 6 was reciprocated along the length direction of the frame bone 2 between the both ear portions 5 and 5 of the filling electrode plate 10 so as to be introduced into the center portion.
  • Example 2 In the first embodiment, the belt conveyors 9 and 9 are driven to move the filling electrode plate 10, and the spiral airflow 8 discharged from the air nozzle 6 is used as the electrode of two adjacent filling electrode plates 10 and 10.
  • the air nozzle 6 was reciprocated along the length direction of the frame bone 2 between both ear portions 5 and 5 of the filling electrode plate 10 after being introduced into the plate gap.
  • Example 3 As shown in FIGS. 4A to 4C, the air nozzles 6A to 6D are attached to the gripper 14 ′ attached to the electric slider 12, two on each side with the frames 13 and 13 interposed therebetween, One air nozzle 6B, 6D was disposed at an angle of 10 degrees in the direction of the frame 13, and the distance between the end face of the filling electrode plate 10 and the nozzle guide large diameter side opening of the air nozzle was adjusted to 20 mm.
  • the air nozzles 6 ⁇ / b> A to 6 ⁇ / b> D are reciprocated while the filling electrode plate 10 is being transferred.
  • the moving operation of the air nozzles 6A to 6D and the discharge of the spiral air flow 8 are performed.
  • the air nozzles 6 ⁇ / b> A to 6 ⁇ / b> D reciprocate once, the position of the charged electrode plate 10 transferred next is transported directly under the electric slider 12.
  • the supply air pressure to the air nozzle was 0.15 MPa, and the inner diameter of the air nozzle was 2 mm (trade name: SA-300S-32-SUSE, manufactured by Galue Co., Ltd.).
  • the active material adhering to the end face in the thickness direction around the frame bone was removed with a wire brush while the filling electrode plate was suspended.
  • Example and Comparative Example each of the positive electrode-filled electrode plate and the negative electrode-filled electrode plate was manufactured in 1000 sheets, and the excess active material could not be removed, and the defect-filled electrode plate remained attached to the electrode plate surface. Table 1 shows the number of sheets.
  • Example 3 using four air nozzles has a higher effect of removing the adhered active material.
  • the active material on the surface of the filled electrode plate was not damaged or dropped off.
  • Example 3 and Comparative Example A predetermined number of positive electrode-filled electrode plates and negative electrode-filled electrode plates produced in Example 3 and Comparative Example were alternately stacked via separators, and electrode plates were prepared by strap welding the same electrodes.
  • the prepared electrode plate group was inserted into a battery case, a lid was attached, the pole column was sealed, a predetermined amount of dilute sulfuric acid was injected, and then a battery case was formed to prepare a lead storage battery.
  • the positive and negative electrode plates were used after removing the excess active material in both Example 3 and Comparative Example.
  • Example 3 10.26h Comparative example: 10.18h There was no big difference. Thereby, it turns out that the paste type
  • the present invention it is possible to remove excess active material adhering to the electrode plate surface of the filling electrode plate without damaging the necessary active material held on the filling electrode plate, and to the extra adhering active material.
  • the short circuit between the positive and negative electrodes caused can be prevented.

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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)
PCT/JP2014/073801 2013-09-12 2014-09-09 鉛蓄電池用のペースト式極板の製造方法及び該方法に用いる極板クリーニング装置 Ceased WO2015037581A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB1503649.4A GB2533976B8 (en) 2013-09-12 2014-09-09 Method of manufacturing paste-type electrode for lead-acid battery and cleaning apparatus of electrode for use with the method
IN1319DEN2015 IN2015DN01319A (https=) 2013-09-12 2014-09-09
JP2015502005A JP5737487B1 (ja) 2013-09-12 2014-09-09 鉛蓄電池用のペースト式極板の製造方法及び該方法に用いる極板クリーニング装置

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JP2013189125 2013-09-12
JP2013-189125 2013-09-12

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4715302A1 (en) * 2024-09-19 2026-03-25 Samsung Sdi Co., Ltd. Apparatus for drying electrode plate of secondary battery

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Publication number Priority date Publication date Assignee Title
TWI622207B (zh) * 2016-08-08 2018-04-21 Battery module with a baffle structure
CN107985703A (zh) * 2017-12-28 2018-05-04 苏州福莱科斯电子科技有限公司 全自动pet覆盖膜撕离机

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JPH06283160A (ja) * 1993-03-30 1994-10-07 Shin Kobe Electric Mach Co Ltd 鉛蓄電池用極板の熟成乾燥装置
JP2000223115A (ja) * 1999-01-28 2000-08-11 Yuasa Corp 鉛蓄電池の製造方法
JP2007213898A (ja) * 2006-02-08 2007-08-23 Matsushita Electric Ind Co Ltd 鉛蓄電池用極板の乾燥装置および鉛蓄電池用極板の製造方法

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JP2004195399A (ja) * 2002-12-19 2004-07-15 Sony Corp 帯状体のクリーニング装置及びクリーニング方法
JP4654694B2 (ja) * 2004-02-26 2011-03-23 新神戸電機株式会社 鉛蓄電池の製造方法

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
JPH06283160A (ja) * 1993-03-30 1994-10-07 Shin Kobe Electric Mach Co Ltd 鉛蓄電池用極板の熟成乾燥装置
JP2000223115A (ja) * 1999-01-28 2000-08-11 Yuasa Corp 鉛蓄電池の製造方法
JP2007213898A (ja) * 2006-02-08 2007-08-23 Matsushita Electric Ind Co Ltd 鉛蓄電池用極板の乾燥装置および鉛蓄電池用極板の製造方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4715302A1 (en) * 2024-09-19 2026-03-25 Samsung Sdi Co., Ltd. Apparatus for drying electrode plate of secondary battery

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IN2015DN01319A (https=) 2015-07-03
TW201517363A (zh) 2015-05-01
GB2533976A (en) 2016-07-13
JPWO2015037581A1 (ja) 2017-03-02
GB2533976B8 (en) 2021-04-28
TWI640120B (zh) 2018-11-01
JP5737487B1 (ja) 2015-06-17
GB2533976B (en) 2021-04-07
GB201503649D0 (en) 2015-04-15

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