JP4235394B2 - Method and apparatus for manufacturing electric double layer capacitor - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method and an apparatus for manufacturing an electric double layer capacitor.
[0002]
[Prior art]
2. Description of the Related Art In recent years, attention has been focused on application technologies for electric double layer capacitors that can be rapidly charged and have a long charge / discharge cycle life as various power storage devices.
[0003]
An electric double layer capacitor is configured by alternately laminating the same number of positive and negative electrode bodies with separators interposed therebetween. These laminated bodies (capacitor main bodies) are immersed in an electrolytic solution, housed in a container and sealed (see Japanese Patent No. 3005992, Japanese Patent Laid-Open No. 7-94374).
[0004]
[Problems to be solved by the invention]
An object of the present invention is to provide a method and an apparatus for efficiently manufacturing a high-quality electric double layer capacitor in consideration of the conventional technology of such an electric double layer capacitor.
[0005]
[Means for Solving the Problems]
The first invention includes a step of composing a rectangular laminate from a positive electrode body and a negative electrode body and a separator interposed therebetween, and a step of bonding lead portions of the positive electrode body and the negative electrode body to terminals corresponding to polarities, respectively. And a step of assembling the container into the accommodation state of the laminated body from the pair of the bottom side portion and the lid side portion, and an electrolyte solution from one openable / closable side in which a pair of terminals protrude into the container inside the sealable tank Injecting A process in which the generated gas is sucked from the inside of the sealed tank to the outside by evacuation while electrolytically purifying the residual moisture and functional groups of the laminated body after impregnation of the electrolyte into the laminated body in the sealed tank, When finished And sealing the laminated body together with the electrolyte inside the container and sealing the laminated body together with the electrolytic solution. The method of manufacturing an electric double layer capacitor includes: The process of assembling the laminated body into the accommodation state is to place the laminated body in the concave part of the bottom part of the dish shape, and to accommodate the laminated body inside the concave part from above the lid side part having the same shape as the bottom side part. A step of sealing the periphery of the recess except for one side from which a pair of terminals protrudes, and a plurality of bottom side portions that support an upward stacked state in which the recesses fit, and a plurality of lid side portions. And a pallet that supports the stacked state in which the recesses are fitted downward, and from above the pallets, the bottom part is lifted upwards by the robot hand, and the lid part is lifted downwards by the robot hand. Exchange to the table The second and subsequent sheets are prevented from being lifted together with the uppermost first sheet to be transported in the bottom side part and the lid side part supported in a stacked state on each pallet. Therefore, the process of lifting the top one of the bottom side part and the lid side part with the suction pad so as to peel it from the one side of the recess with respect to the second sheet, and when the first sheet is lifted to the suction pad, And a step of moving to enter the lower side and restraining the second sheet from the upper side.
[0006]
The second invention is a means for composing a rectangular laminate from a positive electrode body and a negative electrode body and a separator interposed therebetween, and a means for joining the lead portions of the positive electrode body and the negative electrode body to terminals of corresponding polarities. And means for assembling the container from the pair of the bottom side portion and the lid side portion into a state in which the laminate is accommodated, and a pair of terminals projecting into the container inside the sealable tank from the openable / closable side Means for injecting, A means for sucking the generated gas from the inside of the sealed tank to the outside by evacuation while electrolytically purifying the residual moisture and functional groups of the laminated body after impregnation of the electrolyte into the laminated body in the sealed tank, When finished Means for sealing an openable / closable side of the container and sealing the laminated body together with the electrolytic solution inside the container, in an apparatus for manufacturing an electric double layer capacitor, the container is formed from a set of the bottom side portion and the lid side portion. The means for assembling the laminated body into the accommodation state is to place the laminated body in the concave part of the dish-shaped bottom side part, and to accommodate the laminated body from above the lid side part having the same shape as the bottom side part. A pallet that supports a plurality of bottom side portions in an upward stacked state in which the concave portions are fitted, and a plurality of lid side portions. A pallet that supports the stacked state in which the recesses fit downward, and a robot that lifts the recesses upward from the bottom of the pallet and the recesses downward from the top of these pallets, and conveys them alternately to the container assembly Hand and each As a means for suppressing the second and subsequent sheets from being lifted together with the first uppermost sheet to be conveyed by the bottom side part and the lid side part supported in a stacked state on the let, The suction pad that lifts the first sheet at the top of the lid side part as if it is peeled off from one side of the recess with respect to the second sheet, and moves to enter the lower side when the first sheet is lifted by the suction pad 2 And a clamper for holding the sheet from the upper side.
[0007]
3rd invention is the manufacturing apparatus of the electric double layer capacitor based on 2nd invention, As a means to suppress the second and subsequent sheets from being lifted together with the first uppermost sheet to be transported in the bottom side part and lid side part supported in a stacked state on each pallet, a suction pad is used. Operable between a substrate that supports the stroke in the vertical direction, an elastic body that urges the suction pad to the lower end of the stroke between the substrate, and an operating position that suppresses the clamper on the substrate and the second sheet A link mechanism that supports the substrate, an elevating mechanism that supports the substrate so as to be movable in the vertical direction, means for controlling the operation of the elevating mechanism, the suction pad suction, and the operation of the link mechanism, It is characterized by providing.
[0008]
The fourth invention is: Second invention In the electric double layer capacitor manufacturing apparatus according to The pallet on the bottom side and the pallet on the lid side part are placed so that the bottom and front end surfaces of the pallet and the lid side part are inclined so that the stacked front and rear end faces follow the vertical plane. It is characterized by providing.
[0012]
【The invention's effect】
In the first invention, the composition of the laminate, the joining of the lead portion and the terminal, the assembly of the container and the accommodation of the laminate, the injection of the electrolyte, the impregnation of the electrolyte into the laminate, the electrolytic purification of the laminate, the container High-performance products (electric double layer capacitors) can be efficiently manufactured by each process of sealing. In this case, the container is not assembled in the assembled container, but the container is assembled from a set of the bottom side portion and the lid side portion in a state in which the stacked body is accommodated. That is, the assembly of the container and the accommodation of the laminated body are processed simultaneously, and the accommodation of the laminated body itself can be achieved accurately and easily.
[0013]
The laminated body is placed in the concave portion of the bottom portion of the dish shape, and the lid side portion is covered from above, and the periphery of the concave portion is sealed except for one side from which a pair of terminals protrude. As a result, the container is efficiently assembled in the state in which the laminated body is accommodated, and the electrolyte is injected from one openable side where a pair of terminals protrudes into the container. . After that, the remaining side of the container is sealed, and the laminate is sealed together with the electrolyte in the inside. .
[0014]
In the process of assembling the container into the stacked state, the bottom member is lifted from the pallet with the concave portion facing upward by the robot hand, conveyed to the container assembly table, and the concave portion is placed in the upward state. The lid side portion is lifted from the pallet by the robot hand so that the concave portion faces downward, and is transported to the container assembly table. In the meantime, the laminated body is placed in the concave portion of the bottom side portion of the assembly table, and the lid side portion transported by the robot hand is placed on the concave portion in a downward state, and the periphery of the concave portion excluding one side from which the pair of terminals protrudes. It is sealed. Since the bottom side portion and the lid side portion of each pallet are stacked and the concave portions are fitted to each other, when the robot hand lifts from the pallet, the second and subsequent sheets may be lifted together with the first sheet to be transported. When the first sheet is lifted by the suction pad, the clamper moves so as to enter the lower side, and the second sheet is held from the upper side, so that the bottom part and the lid part are properly conveyed one by one to the assembly table. Can .
[0015]
In the second invention, a high performance is achieved by means of processing each step of composition of the laminated body, joining of the lead part and the terminal, assembly of the container and accommodation of the laminated body, injection of the electrolyte, and sealing of the container. Product (electric double layer capacitor) can be manufactured efficiently. In the means for assembling the container in the stacked state, the bottom member is lifted from the pallet with the concave portion facing upward by the robot hand, conveyed to the container assembly table, and the concave portion is placed in the upward state. The lid side portion is lifted from the pallet by the robot hand so that the concave portion faces downward, and is transported to the container assembly table. In the meantime, the laminated body is placed in the concave portion of the bottom side portion of the assembly table, and the lid side portion transported by the robot hand is placed on the concave portion in a downward state, and the periphery of the concave portion excluding one side from which the pair of terminals protrudes. It will be sealed. That is Instead of placing the laminated body in the assembled container, the container is assembled in a state of accommodating the laminated body from a set of the bottom side portion and the lid side portion. For this reason The assembly of the container and the accommodation of the laminate are processed simultaneously, and the accommodation of the laminate itself can be achieved accurately and easily. . Since the bottom side portion and the lid side portion of each pallet are stacked and the concave portions are fitted to each other, when the robot hand lifts from the pallet, the second and subsequent sheets may be lifted together with the first sheet to be transported. When the first sheet is lifted by the suction pad, the clamper moves so as to enter the lower side, and the second sheet is held from the upper side, so that the bottom part and the lid part are properly conveyed one by one to the assembly table. Can do. In this case, when the first uppermost stacked sheet is sucked by the suction pad and lifted in such a manner that the fitting of the recesses is peeled off from one side of the second sheet, the clamper entering the lower side of the first sheet 2 The sheet is suppressed from above. In this state, the suction of the first sheet is stopped, and the suction pad is retracted to the initial position, while the first sheet is lifted by the robot hand and conveyed to the container assembly table. When the first piece is lifted from the pallet by the robot hand, the clamper is returned to the initial state. .
[0016]
In the third invention, the operation of the elevating mechanism, the suction of the suction pad, and the operation of the link mechanism are controlled, and the same operation as that of the second invention is ensured. When the substrate is lowered from the initial position by the operation of the lifting mechanism, the suction pad comes into contact with the uppermost part (first sheet) of the stack, and when the elastic body is compressed by a predetermined amount (set value of the control means), the substrate is lowered. Stopped. The lowering (stroke) of the substrate changes according to the number of stacked sheets, but since the compression amount of the elastic body (stroke pad stroke) is constant at a predetermined value, the suction pad is in contact with the first sheet (the uppermost part of the stack). The surface pressure can always be kept uniform. When the suction pad is sucked, the first sheet is sucked, and when the substrate is raised to the initial position by the operation of the lifting mechanism, the first sheet lifts the second sheet so that the fitting between the recesses is peeled off from one side. On the other hand, by the operation of the link mechanism, the clamper moves from the retracted position to the operating position, enters the lower side of the first sheet, and suppresses the second sheet from the upper side. When the suction is stopped, the first sheet is separated from the suction pad, and in this state, the robot hand starts to be transported. When the first sheet is lifted from the pallet by the robot hand, the clamper releases the second sheet and returns it to the retracted position. By such a series of operations, the bottom side portion and the lid side portion can be accurately conveyed one by one from the pallet to the container assembly table. .
[0017]
In the fourth invention, the bottom portion and the lid portion are stacked with the concave portions in the fitted state, so that the front and rear end surfaces may be inclined depending on the shape of the concave portion. Although the position on the flat surface of the pallet changes depending on the number of stacked sheets, the mounting surface of the pallet is inclined, so that the front and back end surfaces follow the vertical surface and are sucked by the uppermost suction pad. The position can be maintained at a position suitable for peeling from the second sheet. .
[0019]
DETAILED DESCRIPTION OF THE INVENTION
An example of an electric double layer capacitor will be described with reference to FIG. 10 is a container for storing the capacitor body (laminated body) together with the electrolyte, 11 is a pair of terminal plates (capacitor electrodes) drawn to the outside of the container 10, and each of the terminal plates 11a and 11b is light weight and low resistance aluminum. To be formed into a short shape.
[0020]
The capacitor body is configured by alternately laminating the same number of positive and negative electrode bodies with a separator (a porous film made of paper or the like) interposed therebetween. The positive electrode body and the negative electrode body are composed of an electrode sheet having the same configuration from a collecting electrode and polarizable electrodes (activated carbon electrodes) on both sides thereof. These collector electrodes are made of a rectangular metal foil (for example, an aluminum foil), and a strip-shaped lead portion is integrally formed on one side of the rectangular plane. The same polarity of each lead part is bundled, and terminal board 11a, 11b corresponding to polarity is joined to this binding part.
[0021]
The container 10 is composed of two container members (a bottom side part and a lid side part) formed in the same shape from a resin film (for example, an aluminum laminate film) of a flexible material having a laminated structure including a metal layer. When combined, the accommodating portion of the laminate is formed by the planar rectangular recesses 14 facing each other.
[0022]
The capacitor main body is housed inside the bottom side portion, and the lid side portion is covered from above. At the peripheral edge of the container 10, three sides excluding one side from which the pair of terminal plates 11 (part thereof) are drawn are heat welded (heat sealed). The container 10 can be opened on one side from which the pair of terminal plates 11 protrudes. After the electrolytic solution is injected into the inside through the opening, and the impregnation and electrolytic purification of the electrolytic solution are finished, the excess electrolytic solution is extracted and vacuumed. It is sealed in a state (the remaining openable side is heat welded).
[0023]
Of the four side surfaces that rise from the bottom surface of the concave portion 14 to the mating surface of each side, the concave portion 14 of the container 10 (the accommodating portion of the laminated body) facilitates opening of one side from which a pair of terminal plates protrudes. The inclination of the side surface 14a corresponding to one side from which the pair of terminal plates 11 protrudes is set to be gentler than the inclination of the other three side surfaces. In FIG. 1, 13a-13d represents a heat welding part.
[0024]
The manufacturing process of the electric double layer capacitor is divided into a process processed outside the glove box and a process processed inside the glove box. Outside the glove box, a step of creating an electrode sheet (a positive electrode body and a negative electrode body), a step of creating a separator having a predetermined area, a step of creating a pair of terminal plates, a container member (a bottom side portion and a lid side portion) ) And the like are processed. These constituent materials are sufficiently dried (removed from moisture and the like) in a vacuum drying furnace before being brought into the glove box.
[0025]
In a highly dry inert gas atmosphere of the glove box (dew point temperature is about −60 ° C.), a step of forming a rectangular laminate from a positive electrode body and a negative electrode body and a separator interposed therebetween, The process of joining (welding) the terminal board 11 corresponding to the polarity to the lead parts (the binding part) of the same polarity of the body, the process of housing the laminated body in the container 10 (the process of assembling the container 10 into the accommodated state of the laminated body ), A step of injecting an electrolytic solution from one openable side of the container 10 containing the laminated body, a step of impregnating the laminated body with the electrolytic solution, a step of electrolytic purification (electrolysis) of residual moisture and functional groups of the laminated body, The process of sealing one side which can open and close the container 10 etc. is processed.
[0026]
The processing means for each process (such as a welding apparatus and a sealable tank) and the processing means for the process of transporting the workpiece are installed inside the glove box. Within the sealable tank, each process from injection of the electrolyte solution into the container 10 to electrolytic purification of the laminate is sequentially performed.
[0027]
In the impregnation with the electrolytic solution, the process of sucking the inside of the sealed tank to a vacuum state and the process of filling the inside of the tank with an inert gas at normal pressure that has been highly dried (returning to atmospheric pressure) are alternately performed. Repeated. As a result, the electrolyte solution is sufficiently distributed to the corners of the polarizable electrode and the separator of the laminate, and the impregnation of the electrolyte solution is efficiently processed in a short time.
[0028]
Electrolytic purification involves electrolyzing residual moisture and functional groups contained in polarizable electrodes (activated carbon electrodes), etc. ₂ It is a treatment to be changed to gas, and in a sealed tank following impregnation with the electrolyte, a constant current is passed between the pair of terminal plates 11a and 11b to charge to a set voltage, and then discharged The charge / discharge cycle is repeated several times. CO at that time ₂ The gas is sucked from the inside of the sealed tank to the outside of the glove box by evacuation.
[0029]
2 to 4 show a supply device 30 for a container member (bottom side portion and lid side portion) that constitutes a processing means for assembling the container 10 in a state of accommodating a laminate (FIG. 2 is a front view). 3 is a right side view, 4 is a plan view. ), And is installed on the floor surface of the glove box via the installation plate 31. A pair of support columns 32 are erected on the rear portion (on the plate surface) of the installation plate 31, and a wide connecting plate 33 is attached to the front surfaces thereof. A table 35 for mounting two pallets 34 side by side is fixed to the front portion (on the plate surface) of the installation plate 31.
[0030]
Two guides 36 extending in the vertical direction are attached to the front surface of the connecting plate 33 in a positional relationship corresponding to each pallet 34 of the table 35. Reference numeral 37 denotes a substrate that supports the suction pad 38 and the air cylinder 39, and a slider 40 on which the guide 36 can slide is formed on the rear surface. A lifting mechanism 41 that supports the substrate 37 so as to be movable in the vertical direction along the guide 36 is provided. The elevating mechanism 41 is accommodated along the inside of the guide 36, and the electric actuator 41b is connected to a terminal portion 41a protruding upward. When the electric actuator 41b is driven in the forward direction or the reverse direction, the lifting mechanism 41 strokes the substrate 37 in the vertical direction in response to the movement.
[0031]
Brackets 43a and 43b forming an overhanging portion are attached to the front surface of the substrate 37. A rod 45 extending in the vertical direction is disposed on the projecting surface of the bracket 43b via a pair of protrusions 44a and 44b, and the suction pad 38 is supported by the rod 45 through a slidable arm portion 46 so as to be able to stroke. Between the arm portion 46 and the upper projection 44a, an elastic body 47 (spring) that urges the arm portion 46 toward the lower projection is interposed.
[0032]
The suction pad 38 is connected to the piping facility of the negative pressure supply source. When the piping facility is switched to the negative pressure supply side or the negative pressure release side, the horizontal suction surface is sucked to the negative pressure or released to the atmosphere. A sensor 48 that detects the position of the arm portion 46 (that is, the suction pad 38) on the rod 45 is disposed.
[0033]
A hinge block 50 positioned below the bracket 43b is attached to the front surface of the bracket 43a, and an intermediate portion of the lever 55 is supported by an upper end portion 50a (a pair of protrusions) via a pin 55a. A pair of protrusions 39a are formed by moving toward one side of the end surface (rod side) of the air cylinder 39, and the lower end of the hinge block 50 is connected between these via a pin. The base end of the lever 55 is connected to the tip of the piston rod 39b of the air cylinder 39 via a knuckle joint. In order to absorb the difference between the expansion and contraction (linear motion) of the air cylinder 39 and the rotational (swinging) motion of the lever 55 around the pin 55a, the pin that penetrates the lower end of the hinge block 50 and the protrusion 39a that supports both ends thereof. A backlash is set between the pin hole and the other.
[0034]
The lever 55 has a tip formed on a pair of locking portions 55b (clampers), and the tip end of the clamper 55b is below the bracket 43b (projecting portion) by turning around the pin 55a as the air cylinder 39 expands and contracts. It swings between the initial position retracted to the side and the operating position protruding substantially horizontally to the outside of the bracket 43b. In other words, the air cylinder 39, the hinge block 50, and the like constitute a link mechanism that operably supports the lever 55 between the retracted position and the operating position.
[0035]
One of the two pallets 34 mounted on the table 35 supports a plurality of bottom side portions 60a (container members) in a predetermined stacked state, and the other pallet 34b includes a plurality of lid side portions. 60b (container member) is supported in a predetermined stacked state, and as shown in FIGS. 5 to 8 and FIGS. 9 to 12, these are side plates 66a that stand vertically so as to surround the bottom plate 65 and its four sides in a box shape. , 66b and end plates 67a, 67b. The end plate 67a on the guide 36 side is formed of two strips (67a) separated by a predetermined distance in order to avoid interference with the suction pad 38, the lever 55, and the like. A window 68 is opened in the end plate 67b on the opposite side and the two side plates 66a and 66b.
[0036]
The bottom side portion 60a and the lid side portion 60b of the container 10 have an inclination of the side surface 14a corresponding to one side from which the pair of terminal plates 11 protrudes out of the four side surfaces rising from the bottom surface of the recess 14 to the mating surface of each side. Since they are gentler than the inclination of the other three side surfaces, when these are stacked on a horizontal plane, the front side (one side from which the pair of terminal plates 11 protrude) and the rear side (one side from which the pair of terminal plates 11 protrude) are stacked. The end face on the opposite side is inclined. Therefore, the bottom plate 65 of each pallet 34 has a mounting surface with a predetermined angle θ that is inclined so that the front end surface and the rear end surface on which the container members 60a and 60b are stacked follow the end plates 67a and 67b (vertical surfaces) of the pallet 34. 69a, 69b (in this case, an inclined raised bottom).
[0037]
The mounting surface 69a of the pallet 34a is provided with a depressed shape corresponding to the outer shape of the concave portion 14 of the bottom side portion 60a, and the raised shape corresponding to the inner shape of the concave portion 14 of the lid side portion 60b is provided on the mounting surface 69b of the pallet 34b. Attached. Peep holes 71a and 71b are located at positions of pin holes 70a and 70b for positioning on the bottom plate 65 of the pallets 34a and 34b and sensors 73a and 73b (see FIGS. 13 and 14) for detecting the presence or absence of the container members 60a and 60b. Opened. Positioning pins 74a and 74b (bolt heads) that can be engaged with the pin holes 70a and 70b of the pallets 34a and 34b on the respective installation surfaces of the table 35, and sensors 75a and 75b that detect the presence or absence of the pallets 34a and 34b. Peep holes 76a, 76b and peep holes 77a, 77b of the sensors 73a, 73b for detecting the presence or absence of the container members 60a, 60b are provided.
[0038]
In FIG. 2, reference numeral 80 denotes a robot hand that can move in the directions of three axes (x-axis, y-axis, and z-axis), and a suction pad 81 for conveyance is attached to the tip of the hand. The hand 80 includes a base 80a attached to the tip of the arm 82, a press plate 80b that forms a mounting surface of the suction pad 81, a rod 80c that supports the base plate 80a so that the press plate 80b can be displaced in the x-axis direction, and a base An elastic body 80d (spring) interposed between 80a and the press plate 80b. One end of the rod 80c is coupled to the press plate 80b, and a stopper 80e is coupled to the other end penetrating the sliding hole of the base 80a.
[0039]
The suction pad 81 is connected to the piping facility of the negative pressure supply source in the same manner as the suction pad 38 on the substrate 37 side. When the piping facility is switched to the negative pressure supply side or the negative pressure release side, the horizontal suction surface becomes negative pressure. Suction or open to atmosphere. A sensor 83 detects the position of the press plate 80b on the rod 80c.
[0040]
Based on the detection information of each sensor (48, 83, etc.), in addition to the operation of the robot and the suction of the suction pad 81, a controller for controlling the operation of the lifting mechanism 41, the suction of the suction pad 38 and the operation of the link mechanism is provided. . By the operation of the robot hand 80, the bottom side portion 60a is sucked by the suction pad 81, and the concave portion 14 is lifted up from the pallet 34a (see FIG. 13). And it conveys to the assembly stand of the container 10, and the recessed part 14 is mounted in an upward state. Similarly, by the operation of the robot hand 80, the lid side portion 60b is sucked by the suction pad 81, and the concave portion 14 is lifted from the pallet 34b in a downward state, and is transported to the assembly table of the container 10 (see FIG. 14). In the meantime, the laminate is placed in the concave portion 14 of the bottom side portion 60a of the assembly table, and the lid side portion 60b of the robot hand 80 covers the concave portion 14 downward on this, and one side from which the pair of terminal plates 11 protrudes. The formed mating surfaces are hermetically sealed at the periphery of the recessed portion 14 to be removed.
[0041]
Regarding handling, when the hand 80 is lowered in the x-axis direction, the suction pad 81 comes into contact with the container members 60a and 60b (bottom side portion and lid side portion), and when the hand 80 is further lowered, the push plate 80b is moved to the elastic body 80d. Displacement in the compression direction. When the compression amount of the elastic body 80d reaches a predetermined value, the descent of the hand 80 is stopped and suction of the suction pad 81 is started based on the detection information (output of the sensor 83). The suction pad 81 is pushed by the elastic body 80d of the hand 80 and comes into close contact with the container members 60a and 60b without any gap, and the negative suction pressure can be utilized for the suction of the container members 60a and 60b without waste.
[0042]
Since the container members 60a and 60b are sucked by the suction pad 81 of the hand 80 and are lifted from the pallets 34a and 34b, the recesses 14 are fitted with each other. Although it comes to be lifted, a means for suppressing the second and subsequent sheets is provided, so that the bottom part 60a and the lid part 60b can be handled accurately one by one.
[0043]
Specifically, the substrate 37 is lowered from the initial position in the vertical direction by the operation of the elevating mechanism 41. When the suction pad 38 contacts the uppermost part (first sheet) of the stack and the elastic body 47 is compressed by a predetermined amount, the lowering of the substrate 37 is stopped based on the detection information (output of the sensor 48). The lowering (stroke) of the substrate 37 changes according to the number of stacked sheets, but since the compression amount of the elastic body 47 is constant at a predetermined value, the surface pressure at which the suction pad 38 is in contact with the first sheet (the uppermost part of the stack) is changed. It can always be kept uniform.
[0044]
A negative pressure is supplied to the suction pad 38, and the first sheet is sucked into the suction pad 38. And when the board | substrate 37 raises to the initial position by the action | operation of the raising / lowering mechanism 41, while the 1st board | substrate is lifted to the state which peels off the fitting of the recessed parts 14 with respect to the 2nd board | substrate, The lever 55 moves from the retracted position to the operating position, enters the lower side of the first sheet, and suppresses the second sheet from the upper side.
[0045]
When the suction is stopped, the first sheet is separated from the suction pad 38, and in this state, the conveyance of the robot hand 80 is started. When the first sheet is lifted from the pallet 34 by the robot hand 80, the lever 55 is released from the second sheet and returned to the retracted position. By such a series of operations, the container members 60a and 60b can be accurately conveyed one by one from the pallets 34a and 34b to the assembly table of the container 10.
[0046]
When the pallet 34 becomes empty, the empty pallet 34 is replaced with a pallet 34 that supports the container members 60a and 60b in a stacked state based on the detection information (outputs of the sensors 73a and 73b and outputs of the sensors 75a and 75b). Alternatively, the container members 60a and 60b are replenished to the empty pallet 34 in a stacked state.
[0047]
In the production process of the product (electric double layer capacitor), the container 10 is not accommodated in the assembled container 10 but the container 10 is accommodated by the laminated body from the bottom side portion 60a and the lid side portion 60b. Assembled into. That is, the assembly of the container 10 and the accommodation of the laminated body are processed simultaneously, and the accommodation of the laminated body itself can be achieved rationally (easy and appropriate).
[Brief description of the drawings]
FIG. 1 is an external view of an electric double layer capacitor.
FIG. 2 is a front view of the supply device.
FIG. 3 is a right side view of the same.
FIG. 4 is a plan view of the same.
FIG. 5 is a front view of a pallet (for the bottom side portion).
FIG. 6 is a plan view of the same.
FIG. 7 is a right side view of the same.
FIG. 8 is a left side view of the same.
FIG. 9 is a front view of a pallet (lid side portion).
FIG. 10 is a plan view of the same.
FIG. 11 is a right side view of the same.
FIG. 12 is a left side view of the same.
FIG. 13 is an explanatory diagram of handling for the bottom portion.
FIG. 14 is an explanatory diagram of handling with respect to the lid-side portion.
[Explanation of symbols]
10 containers
11a, 11b terminal plate capacitor electrode)
30 Container member supply device
34 (34a, 34b) Pallet
35 tables
36 Guide
37 substrates
38 Suction pad
39 Air cylinder
40 slider
41 Substrate lifting mechanism
44a, 44b protrusion
45 rod
46 arms
47 Elastic body (spring)
48,83 sensors
50 Hinge block
55 lever
55a Lever fulcrum (pin)
60a Bottom part of container member
60b Lid side part of container member
65 Pallet bottom plate
69a, 69b Diagonal mounting surface
80 robot hand
81 Suction pad for conveyance

Claims (4)

A step of composing a rectangular laminate from a positive electrode body and a negative electrode body and a separator interposed therebetween, a step of bonding lead portions of the positive electrode body and the negative electrode body to terminals corresponding to polarities, and a set of bottoms A step of assembling the container from the side portion and the lid side portion into a state in which the laminate is accommodated, a step of injecting an electrolyte from one side that can be opened and closed, and a pair of terminals projecting into the container inside the sealable tank; A process in which the generated gas is sucked from the inside of the sealed tank to the outside by evacuation while electrolytically purifying residual moisture and functional groups of the laminated body after impregnation of the electrolyte into the laminated body in the sealed tank, And a step of sealing an openable / closable side of the container and sealing the laminated body together with the electrolyte inside the container. Container container The process of assembling in a state is to put the laminate in the concave portion of the dish-shaped bottom side portion, and cover the lid side portion having the same shape as the bottom side portion so as to accommodate the laminate inside the concave portion from above. This is a process of sealing the periphery of the recess except for one side where the pair of terminals protrudes, and the recess fits the pallet that supports the multiple stacked sides facing upwards and the lid side portions. And a pallet that supports the stack in a downward direction.The robot hand lifts the bottom part of the pallet upward and the lid part of the pallet is raised downward by the robot hand. In order to prevent the second and subsequent sheets from being lifted together with the transporting process and the first top sheet to be transported in the bottom side part and the lid side part supported in a stacked state on each pallet. , The upper part of the side part and the upper part of the lid side part is lifted by the suction pad so that the second part is peeled off from one side of the recess, and when the first part is lifted by the suction pad, the clamper A method of manufacturing an electric double layer capacitor, the method comprising: A means for composing a rectangular laminate from a positive electrode body and a negative electrode body and a separator interposed therebetween, a means for joining the lead portions of the positive electrode body and the negative electrode body to terminals corresponding to polarities, and a set of bottoms Means for assembling the container from the side part and the lid side part into the accommodation state of the laminate, and means for injecting the electrolyte from one openable side where a pair of terminals protrude into the container inside the sealable tank; A means for sucking the generated gas from the inside of the sealed tank to the outside by evacuation while electrolytically purifying the residual moisture and functional groups of the laminated body after impregnation of the electrolyte into the laminated body in the sealed tank, Means for sealing an openable and closable side of the container and sealing the laminated body together with the electrolyte inside the container, in an electric double layer capacitor manufacturing apparatus, comprising a set of bottom side portion and lid side portion Container container The means for assembling the state is to put the laminate in the concave portion of the dish-shaped bottom side portion, and cover the lid side portion having the same shape as the bottom side portion from above to accommodate the laminate inside the concave portion. It is a means to seal the periphery of the recess except for one side where the pair of terminals protrudes, and the recess fits the pallet that supports the multiple stacked bottom side parts in an upward stacked state where the recesses fit, and the lid side parts A pallet that supports in a downwardly stacked state, and a robot hand that lifts the concave part upward from the bottom part of the pallet and the concave part downward from the lid part, and conveys them alternately to the container assembly, As a means to prevent the second and subsequent sheets from being lifted together with the first uppermost sheet to be transported in the bottom side part and lid side part supported in a stacked state on the pallet, Lid side The suction pad that lifts up the first sheet from the one side of the recess relative to the second sheet, and the second sheet moves into the lower side when the first sheet is lifted by the suction pad. An electric double layer capacitor manufacturing apparatus comprising: a clamper that suppresses from above. As a means to suppress the second and subsequent sheets from being lifted together with the first uppermost sheet to be conveyed on the bottom side and the lid side part supported in a stacked state on each pallet, a suction pad is used. Operates between a substrate that is supported so that it can be stroked in the vertical direction, an elastic body that urges the suction pad to the lower end of the stroke between the substrate, and an operating position where the clamper is retracted from the substrate and the second position is suppressed And a means for controlling the operation of the elevating mechanism, the suction of the suction pad, and the operation of the link mechanism. 2. An apparatus for producing an electric double layer capacitor according to item 2. 3. The pallet of the bottom side portion and the pallet of the lid side portion are provided with a mounting surface that is inclined so that the front and rear end surfaces of the bottom side portion and the lid side portion are stacked so as to follow the vertical surface. The manufacturing apparatus of the electric double layer capacitor which concerns on description.

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