KR20130105375A - Manufacturing device, manufacturing method and detecting method of battery - Google Patents

Abstract

PURPOSE: A battery-manufacturing device is provided to stop the apparatus before approaching to a battery, when a clamp is closed, thereby preventing damage on the battery or the device in advance while preventing influence on the result of a leakage inspection. CONSTITUTION: A battery-manufacturing device comprises a side clamp (20) in contact with a side and a bottom side including the opening of a battery case (C) accommodating a battery with electrolyte sealed, through a sealing material; an inspection head (2) sealing the opening of the battery case by clamping the battery case using an upper side clamp (21) which is installed onto the side clamp through parallel links (24A,24B); and a leakage measurement device absorbing air from the battery case through the opening and measuring the volatile component of electrolyte in the absorbed air. [Reference numerals] (AA) Front; (BB) Rear

Description

MANUFACTURING DEVICE, MANUFACTURING METHOD AND DETECTING METHOD OF BATTERY

The present invention relates to a battery manufacturing apparatus, a manufacturing method, and an inspection method for inspecting leakage of a battery.

Conventionally, it is proposed to detect the electrolyte solution leaked from a lithium ion battery with an odor sensor as a leak test method of the electrolyte solution by the sealing failure of a lithium ion battery (refer patent document 1).

This fits the sealed container through the O-ring to the sealing part of the assembly of the lithium ion battery, depressurizes the inside of the container, and detects the volatile component of the electrolyte solution contained in the atmosphere in the container by an odor sensor to detect the leakage of the electrolyte solution. To judge.

Japanese Patent Laid-Open No. 10-172618

By the way, in a lithium ion battery, there exists a battery pack which combined a plurality of unit cells, and the battery module which integrated the some battery pack. In such a battery pack and a battery module, the battery case incorporating a battery element forms a box shape, and in addition, the unevenness | corrugation by a processus | protrusion and a recess may arise in the battery case surface. When the inspection method of the above example is applied to a battery case which forms such a box and has irregularities on its surface, there is a problem that the sealed container cannot be fitted through an O-ring or the like.

Therefore, this invention is made | formed in view of the said problem, and an object of this invention is to provide the manufacturing apparatus, manufacturing method, and test | inspection method of a battery applicable to a box-shaped battery case.

The present invention is directed to a battery manufacturing apparatus having a battery case having an opening communicating with the outside on at least part of its side, and a battery sealed with an electrolyte solution and contained in the battery case. And in this invention, the side clamp which contacts the side and bottom surface containing the opening of the battery case which accommodated the battery which enclosed the said electrolyte solution through a sealing material is provided. In addition, as the side clamp approaches the battery case, an upper clamp is provided on the upper surface leading to the side including the opening through the parallel link with respect to the side clamp so as to approach from the upper direction through the sealing material. The test case clamps the battery case by the side clamp and the upper clamp to form a test head that seals around the opening of the battery case. A liquid leakage measuring apparatus is provided for sucking air in the battery case via an opening of the battery case and measuring a volatile component of an electrolyte solution contained in the sucked air.

Therefore, in this invention, all the sealing materials provided in the clamp can be contacted without rubbing with respect to the contact surface of a battery case, and it is applicable also to the battery provided with a box-shaped battery case.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic block diagram of the manufacturing apparatus, manufacturing method, and test | inspection method of the battery which show one Embodiment of this invention.
2 is a plan view (A) and a side view (B) of the battery.
It is a side view which shows the structure of the test head and actuator of the battery leakage test apparatus.
It is a side view which shows the operation | movement state of the test head and the actuator of the leak test apparatus of a battery.
FIG. 5 is a side view showing a return start state from an operating position of an inspection head and an actuator of a battery leakage inspection apparatus; FIG.
6 is a side view showing a state where the test head is returned to the standby position from the closed state.
It is a side view which shows the structure of the test | inspection head and actuator of the battery leakage test apparatus which shows 2nd Embodiment of this invention.
It is a side view which shows the operation | movement state of the test head and the actuator of the leakage test apparatus of a battery.

Hereinafter, the manufacturing apparatus, the manufacturing method, and the inspection method of the battery of this invention are demonstrated based on each embodiment.

(1st embodiment)

BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing which shows the manufacturing process of the battery to which the manufacturing apparatus, manufacturing method, and test method of the battery of 1st Embodiment to which this invention is applied.

As shown in FIG. 1, the battery manufacturing apparatus of the present embodiment includes a battery pack in which a plurality of lithium ion batteries are incorporated in a battery case C, or a combination of a plurality of battery packs in a battery case C. It aims at the leak-proof inspection process S of the battery B of the last step of the manufacturing process of a battery module. In the leakage test step S of the battery B, the presence or absence of leakage of the electrolyte solution is examined for the battery B (battery pack or battery module) carried in by the conveyor from the manufacturing process. In addition, the leakage test of the battery of this embodiment is not limited to the manufacturing process of said battery B (battery module or battery pack), It is applicable also to the battery B (battery module or battery pack) in use. can do.

In the leakage testing step S, the direction of rotation (direction) of the battery B is first adjusted in the rotation stage S1. Subsequently, the battery B is conveyed to the inspection stage S2 by the conveyor, and leakage inspection is performed by the leakage inspection apparatus 1 of the battery B (battery module or battery pack) at the inspection stage S2. The battery B, which has been executed and whose leakage test has been completed, is conveyed on the buffer conveyor S3. The controller 5 controls the operation of the conveyor S3 and the positioning operation in the rotation stage S1 and the inspection stage S2.

Here, the battery module as the battery B to which the leakage testing apparatus 1 of the present embodiment is applied will be described prior to the detailed description of the leakage testing apparatus 1. 2 is a plan view and a side view of the battery module. The battery case C is composed of a container with an open top and a lid for closing an opening of the container. The battery case C incorporates a plurality of battery packs P into the container, and the wound edge of the container and the edge of the cover are wound. The battery module is constituted by (M). The winding part M is formed in the upper edge of the battery case C, and has the protrusion shape which protruded upwards.

In the battery case C, a plurality of battery packs P (for example, four) are stacked and inserted. These battery packs P are electrically connected to each other, and the common terminal T (plus, minus, control) thereof is drawn out from the opening C1 provided on one side of the battery case C to the outside. In the battery case C, the opening C2 is provided on the side surface of the battery case C opposite to the side surface on which the opening C1 is exposed, and at the bottom and the lid of the battery case C. For example, four positioning holes C3 are opened. The positioning hole C3 is used for positioning of the battery case C at the time of assembly as a battery module and the mounting of the battery module to the target apparatus.

The space in the battery case C has a large number of gaps between the battery pack P and the wall surface of the battery case C, and communicates with the outside air through the openings C1 and C2 provided on opposite sides. . The battery case C is positioned in the leakage inspection stage S2 such that the side surface having the opening C2 on the side opposite to the terminal T side faces the leakage testing apparatus 1 of the battery B. .

In the battery B described above, when the electrolyte solution leaks from the battery pack P, the battery B has a structure that cannot be visually confirmed from the outside. Hereinafter, although the said battery B is demonstrated as a leakage test object of electrolyte solution, a box-shaped battery pack P and a single member lithium ion battery may be sufficient.

In the test | inspection stage S2, the battery case C is positioned in the state which can be inspected using the positioning hole C3 mentioned later. The leakage testing apparatus 1 includes a test head 2 coupled to the battery case C, a coupling position for coupling the test head 2 to the battery case C, and a standby position retracted from the battery case C. FIG. It is provided with an actuator (3) to move in. In addition, the leakage testing apparatus 1 includes a leakage testing apparatus 4 that sucks the atmosphere in the battery case C through the test head 2 and measures the volatile components of the electrolyte contained in the sucked air.

3 shows the configuration of the test head 2 and the actuator 3 of the leakage testing apparatus 1 in a state of advancing by a predetermined amount from the standby position. As for the air cylinder as the actuator 3, when the piston rod 31 is freely stretched between the limit position and the return position, and the piston rod 31 is located at the limit position and the return position, the position information is stored in the controller 5. Is entered. In addition, the operation to the return position and the limit position of the actuator 3 is controlled by the controller 5. Here, the left-right direction and the up-down direction of each member are demonstrated based on the advancing direction of the piston rod 31 as the front, the retraction direction as the back, and the expansion direction of the piston rod 31 as a reference. The test head 2 is fixed to the tip of the piston rod 31 via the adjustment nut 32, and the front and rear positions of the test head 2 with respect to the piston rod 31, that is, the pressure value of the head, It is possible to adjust by adjusting the tightening position of the adjustment nut 32.

The test head 2 has a side clamp 20 in contact with the lower surface of the battery case C and the front side surface of the battery case C, and an upper clamp 21 in contact with the upper surface of the battery case C. do. Cushionable sealing materials 20A and 21A are provided on the surface where the side clamp 20 and the upper clamp 21 contact the battery case C by attachment or the like. The upper clamp 21 and the side clamp 20 are provided with extension parts 20B and 21B extending rearwardly spaced from the battery case C from an area in contact with the battery case C. These extension parts 20B and 21B are connected to the two parallel links 24A and 24B which are arranged in the front-back direction and extended in the up-down direction, respectively, through a pin.

Among the parallel links 24A and 24B, the front link 24A disposed in front of the battery case C side extends further downward from the extension portion 20B of the side clamp 20, and the extended lower end portion thereof. A tension spring 25 is disposed between the side clamps 20. The tension spring 25 erects the parallel links 24A and 24B in the up and down direction, presses the upper clamp 21 and the side clamp 20 in the vertically spaced direction, and acts as an unclamp.

The rear link 24B disposed rearwardly spaced apart from the battery case C among the parallel links 24A and 24B extends further downward from the extension of the side clamp 20, and the lower end of the extension 24C. Is formed by the bent portion 24D bent forward. Then, in the state where the inspection head 2 is advanced from the standby position by a predetermined amount (FIG. 3), the front side surface at which the bent portion 24D of the lower end of the extended portion 24C starts is provided from the mounting base of the actuator 3. It is adapted to engage with the tip of the stopper bracket 33 extending forward.

The adjustment bolt nut 34 which adjusts the engagement position with the lower end part of the rear link 24B in the front-back direction is provided in the front-end | tip of the stopper bracket 33, and the rear link 24B is adjusted by adjusting the adjustment bolt nut 34. FIG. The front-back direction position couple | bonded with the lower end part of () is made adjustable. Moreover, the engaging piece 35 which protruded upward is arrange | positioned at the upper surface of the back of the stopper bracket 33. As shown in FIG. As for the engaging piece 35, the front side which is the battery case C side is formed in the inclined surface. The coupling piece 35 returns to the standby position in a state in which the rear link 24B is inclined forward when the inspection head 2 is closed from the operating position in the closed state, but this rear link 24B In combination with the lower end of the function, it serves to prevent movement of the test head 2 to the operating position.

20 C of through-holes are formed in the side clamp 20 through the part which contact | connects the front side surface of the battery case C, and 20 A of sealing materials of the said part to the front-back direction. 20 C of through-holes are able to communicate with the opening C2 provided in the front side surface of the battery case C hold | maintained by the side clamp 20 in the front. Moreover, 20 C of through-holes are connected to the leakage liquid measuring apparatus 4 through the flexible hose 41 at the back.

The leakage measurement apparatus 4 includes a suction pump 42 that sucks air in the battery case C through a hose 41 connected to the test head 2, and is included in the suctioned air path. The leaking liquid detection sensor 43 which measures the volatile component of electrolyte solution is provided. The suction pump 42 is controlled by the controller 5 to start the suction operation when the test head 2 is coupled to the battery case C and to stop at the stage where the measurement of the predetermined time is completed. In addition, the leak detection sensor 43 measures the volatile component of the electrolyte in the suction air during the period in which the suction pump 42 is operating. The measurement data obtained by the leakage detection sensor 43 is determined by the controller 5 whether or not the electrolyte is leaked, and the determination result is displayed on the display 44 and transmitted to the production control system 50.

As the leak detection sensor 43, since the sensor using the principle by which the odor component selectively reacts on the semiconductor surface and whose conductivity changes is high sensitivity, it is preferable. For example, when flammable gases (smelling components) contact the semiconductive tin oxide, zinc oxide porous body, thin film, or whisker surfaces, they react with oxygen adsorbed on these surfaces to change the Fermi level in the semiconductor. A change in conductivity can be used. Moreover, what made the gate part of the FET using a silicon semiconductor selectively adsorb | suck a specific gas, etc. can also be used suitably.

In the battery manufacturing apparatus having the above configuration, in the standby position of the test head 2, the parallel links 24A and 24B are erected by the tension spring 25, and the upper clamp 21 is connected to the side clamp 20. It is in the open state spaced apart from. When the battery case C is positioned at the inspection stage S2, the controller 5 operates the actuator 3 from the return position to the limit position. When the test head 2 is extruded to the battery case C side by the actuator 3, it advances in the open state.

When the test head 2 is advanced from the standby position by a predetermined amount, the side surface of the extension portion 24C in front of the root portion of the bent portion 24D of the rear link 24B of the parallel link 24A, 24B is formed at the stopper bracket ( 33) (the state of FIG. 3). When the lower end of the rear link 24B is coupled to the front end of the stopper bracket 33, the parallel links 24A and 24B rotate forward as the forward advances, so that the upper clamp 21 approaches the side clamp 20. Move forward while descending.

When the inspection head 2 is moved to the engaged position at the limit position by the actuator 3, as shown in Fig. 4, the side clamp 20 is cushioned seal to the lower surface and the front side of the battery case C. Push the ash 20A and crush it to make contact. In addition, the upper clamp 21 is in contact with the upper surface of the battery case C while pushing the cushioning sealing material 21A.

The edge of the upper surface of the battery case C is provided with protrusions by the winding body M. Since the upper clamp 21 is in contact with the upper surface of the battery case C while moving in parallel, even if the protrusions are present, It can be brought in intimate contact without rubbing. The upper clamp 21 and the side clamp 20 are brought into a complete clamp state by parallel links 24A and 24B. Further, the sealing material 20A, 21A between the side surfaces and the upper clamps 20, 21 is pushed apart by a predetermined amount with respect to the battery case C, so that the through hole 20C and the opening C2 of the side clamp 20 are closed. The space in the battery case C that communicates through is completely blocked from the top, bottom, left and right, and the airtightness is ensured.

The pressurization value of the sealing materials 20A and 21A can be adjusted with the adjustment nut 32 and the adjustment bolt nut 34. That is, when the side clamp 20 is advanced by the adjusting nut 32, the pressure value of the seal member 20A between the side clamp 20 and the battery case C increases, and when the side clamp 20 is retracted, This pressurization value becomes small. Moreover, when advancing the adjustment bolt nut 34, the pressure value of the sealing material 21A between the upper clamp 21 and the battery case C becomes small, and when the adjustment bolt nut 34 is retracted, the said pressurized value Becomes large.

When the test head 2 is coupled to the battery case C, the suction pump 42 is operated, and the volatile component of the electrolyte solution in the suction air is subsequently measured by the leak detection sensor 43. A flow rate regulator may be provided between the leak detection sensor 43 and the suction pump 42 so that the suction speed can be varied. Then, at the stage where the measurement of the predetermined time is completed, the suction pump 42 is stopped. As for the measurement data by the leak detection sensor 43 of the air sucked in the battery case C, the determination of the leakage of electrolyte solution is performed by the controller 5, and the determination result is displayed on the display 44. The test results are sent to the production control system 50.

Subsequently, the actuator 3 is operated from the limit position to the return position. As the test head 2 is retracted, the side clamp 20 is spaced apart rearward from the lower surface and the side surface of the battery case C, and is coupled to the lower end of the front link 24A of the parallel links 24A and 24B. The tension spring 25 is operated in the contracting direction, so that the upper clamp 21 is lifted in parallel from the battery case C. Subsequently, the process returns to the standby position which is the return position via the state shown in FIG. The battery case C after the inspection is finished is carried out from the inspection stage S2 to the buffer conveyor S3. And it waits until next battery case C is positioned in test | inspection stage S2.

By the way, when the test head 2 is closed before approaching the battery case C, it is necessary to prevent accurate detection and to prevent damage to the battery case C or the equipment beforehand. As a cause of the inspection head 2 being closed in this way, the tension spring 25 may be cut | disconnected by repeated expansion and contraction, for example. When the tension spring 25 is cut off, as shown in FIG. 5, the upper clamp 21 is closed by its own weight.

When the test head 2 is returned to the standby position by the actuator 3 from this state, the upper clamp 21 is closed, and the parallel links 24A and 24B retreat to the standby position in a state inclined forward. And as shown in FIG. 6, the engaging piece 35 in which the bending part 24D of the lower end part of the rear link 24B of the parallel link 24A, 24B is arrange | positioned at the rear upper surface of the stopper bracket 33 is carried out. Beyond the inclined surface of the bent portion 24D is coupled to the coupling piece 35. In addition, when there is no abnormality in the clamping mechanism of the inspection head 2, since the parallel links 24A and 24B return to an upright state, the lower end of the rear link 24B is engaged even in the return position of the actuator 3. There is nothing to go over in flight (35).

By the coupling of the bent portion 24D and the engaging piece 35, the inspection head 2 is in a state where movement to the operating position is prevented. Therefore, since the lower end of the rear link 24B is engaged with the engaging piece 35, it cannot operate to the limit position side even when the actuator 3 is operated to the limit position side again by a signal from the control program. At this time, the controller 5 is in a state in which the response of the limit position detection does not return with respect to the operation command to the limit position, and when the predetermined time set in advance in the control program is exceeded, a control time over error occurs. Is stopped and an abnormality is reported. In this way, when there is an abnormality in the clamping mechanism of the inspection head 2, by stopping the installation, it is possible to prevent the damage to the battery case C and the installation, while avoiding the influence on the correct inspection.

In this embodiment, the effect described below can be exhibited.

(A) An apparatus for producing a battery (B) having a battery case (C) having an opening (C2) in communication with the outside on at least part of the side thereof, and a battery (B) encapsulated with an electrolyte solution and accommodated in the battery case (C). To target. Then, the side clamp 20 is provided on the side and bottom surfaces including the opening C2 of the battery case C containing the battery B in which the electrolyte is sealed, through the sealing material 20A. In addition, as the side clamp 20 approaches the battery case C, the side clamp 20 is approached from the upper direction through the sealing material 21A to the upper surface leading to the side surface including the opening C2. The upper clamp 21 provided through the parallel links 24A and 24B is provided. And the test head 2 which clamps the battery case C by the side clamp 20 and the upper clamp 21, and seals around the opening C2 of the battery case C is comprised. And the liquid leakage measurement apparatus 4 which sucks the air in the battery case C via the opening C2 of the battery case C, and measures the volatile component of the electrolyte solution contained in the drawn air is provided. For this reason, the sealing materials 20A and 21A provided in the clamps 20 and 21 can be brought into contact with each other without rubbing against the contact surface of the battery case C, and the battery provided with the box-shaped battery case C ( The same applies to B). In addition, since the sealing materials 20A and 21A contact each other without rubbing against the contact surface of the battery case C, the durability of the sealing materials 20A and 21A can be improved.

(B) The parallel links 24A and 24B are provided with an extension portion 24C that further extends from the engaging portion to the side clamp 20. Then, in the middle of the approach movement of the side clamp 20 to the battery case C, the extension portion 24C is engaged with the adjustment bolt nut 34 as a stopper, whereby the parallel links 24A and 24B come out of the upright state. Rotate to the case (C) side. For this reason, it is comprised so that the upper clamp 21 or the upper clamp 21, and the side clamp 20 may approach the upper surface or the upper surface of the battery case C from an up-down direction. As a result, the inspection head 2 can be pressed to perform the clamp in one motion, thereby reducing the inspection tact and taking the inspection time longer as long as the tact is shortened, thereby improving the detection accuracy. Can be. In addition, since one actuator 3 can press and clamp the test head 2, the cost for the equipment and control can be reduced. In addition, a stable clamp can be achieved regardless of the stop position variation of the battery B as a work.

(C) The engaging piece 35 is provided to protrude in the rear position on the line parallel to the moving direction of the side clamp 20, including the adjusting bolt nut 34 as a stopper which contacts the extension part 24B. . And when the coupling piece 35 returns to the standby position in the state which parallel link 24A, 24B rotated to the battery case C side from an upright state, the extension part 24C of parallel link 24A, 24B is carried out. The side clamp 20 is fixed to the standby position by engaging the tip of the. For this reason, when the clamp is closed before approaching the battery B, the equipment can be stopped, and the effect on the leakage test result can be prevented and damage to the battery B or the equipment is not caused. To prevent it.

(Second Embodiment)

7 and 8 show a second embodiment of the battery manufacturing apparatus and the manufacturing method to which the present invention is applied, and FIG. 7 shows the inspection head and the actuator of the leakage testing apparatus in a state advanced by a predetermined amount from the standby position. 8 shows the state of the inspection head in the operating position. In this embodiment, the structure of the test head with respect to the battery case with protrusions up and down is added to 1st Embodiment. In addition, the same code | symbol is attached | subjected to the same apparatus as 1st Embodiment, and the description is abbreviate | omitted or simplified.

In FIG. 7, in this embodiment, as battery case C, it aims to provide the processus | protrusion by the winding part M in the periphery of the cover arrange | positioned up and down of a container. For this reason, it is necessary not to give a sliding (rubbing) external force to the sealing materials 21A-23A provided in the clamps 21-23.

For the above reason, in the inspection head 2 of the present embodiment, the upper and lower clamps 21 and 23 for clamping the upper and lower surfaces of the battery case C, respectively, and the side clamps 22 that contact the side surfaces of the battery case C. ) Is divided into three parts. Also in the lower clamp 23, similarly to the upper clamp 21, the lower clamp 23 includes a configuration in which the parallel links 26A and 26B approach and contact the lower surface of the battery case C from the lower direction. That is, the side clamps 22 and the lower clamps 23 are provided with extension parts 22B, 23B extending rearwardly spaced apart from the battery case C from an area in contact with the battery case C. The extension portions 22B and 23B are connected to two parallel links 26A and 26B arranged in the front-rear direction and extending in the vertical direction, respectively, via pins.

Among the parallel links 26A and 26B, the front link 26A disposed in front of the battery case C side extends further upward from the extension portion of the side clamp 22. A tension spring (not shown in the figure) is disposed between the extended upper end and the side clamp 22 as an unclamp. This tension spring presses the parallel links 26A and 26B in the up and down direction, and presses the side clamp 22 and the lower clamp 23 in the direction spaced apart in the up and down direction.

The rear link 26B disposed rearward from the battery case C among the parallel links 26A and 26B extends further upward from the extension of the side clamp 22, and the upper end of the extension 26C. Is bent forward at an angle to form a bent portion 26D. Then, in the state where the inspection head 2 is advanced from the standby position by a predetermined amount (Fig. 7), the front side surface at which the bent portion 26D of the upper end of the extension portion 26C starts is provided from the mounting base of the actuator 3. It is adapted to engage with the tip of the stopper bracket 36 extending forward.

At the distal end of the stopper bracket 36, an adjustment bolt nut 37 for adjusting the engagement position with the upper end of the rear link 26B in the front-rear direction is provided, and the rear link 26B is adjusted by adjusting the adjustment bolt nut 37. The front-back direction position couple | bonded with the upper end part of () is made adjustable. The other structure is comprised similarly to 1st Embodiment.

In the manufacturing apparatus of the battery B of the present embodiment having the above configuration, the upper and lower clamps 21 and 23 are supported by the side clamps 22 through the parallel links 24A, 24B, 26A, and 26B. And it is hold | maintained at the position spaced apart from the side clamp 22 in the up-down direction via parallel links 24A, 24B, 26A, and 26B in a standby position. Then, when the test head 2 is moved to the operating position that engages the battery case C, the parallel links 24A, 24B, 26A, and 26B are inclined forward. As a result, the side clamp 22 is operated so as to approach from both the upper and lower sides, and the upper and lower sides of the battery case C are operated from the upper and lower sides. For this reason, even if there are unevenness | corrugation by a processus | protrusion and a recessed part in the upper and lower surfaces of the battery case C, it can clamp from the upper and lower sides without rubbing the uneven surface.

In this embodiment, the effects described below can be exhibited in addition to the effects (a) to (c) in the first embodiment.

(D) A device for producing a battery (B) having a battery case (C) having an opening (C2) communicating with the outside on at least part of the side thereof, and a battery (B) encapsulated with an electrolyte solution and accommodated in the battery case (C). To target. And the side clamp 22 which contacts through the sealing material 22A is provided in the side surface containing the opening C2 of the battery case C which accommodated the battery B which enclosed electrolyte solution. In addition, as the side clamp 22 approaches the battery case C, the side clamp 22 is approached from the up and down direction through the sealing members 21A and 23A on the upper and lower surfaces respectively leading to the side surface including the opening C2. ) Up and down clamps 21 and 23 provided through parallel links 24A to B and 26A to B, respectively. And the test head 2 which clamps the battery case C around the opening C2 of the battery case C by clamping the battery case C by the side clamp 22 and the up-down clamps 21 and 23 is comprised. And the liquid leakage measurement apparatus 4 which sucks the air in the battery case C via the opening C2 of the battery case C, and measures the volatile component of the electrolyte solution contained in the drawn air is provided. For this reason, also about the battery B with an unevenness | corrugation up and down of the battery case C, all the sealing materials 21A-23A provided in the clamps 21-23 do not rub against the contact surface of the battery case C. It can be made to contact, and it is applicable also to the battery B provided with the box-shaped battery case C. In addition, since the sealing materials 21A to 23A are in contact with each other without rubbing against the contact surface of the battery case C, the durability of the sealing materials 21A to 23A can be improved.

B: battery
C: battery case
C2: opening
P: battery pack
1: leak test device
2: inspection head
3: Actuator
4: leakage measurement device
5: controller
20, 22: side clamp
20A to 23A: sealing material
21: upper clamp
23: lower clamp
24A, 24B, 26A, 26B: parallel link
24C, 26C: Extension
25: tension spring
34: Adjusting bolt nut as stopper
35: joining piece

Claims (8)

An apparatus for manufacturing a battery having a battery case having an opening communicating with the outside on at least part of the side thereof, and a battery sealed with an electrolyte solution and accommodated in the battery case,
A side clamp contacting the side and bottom surfaces including the openings of the battery case accommodating the battery containing the electrolyte solution through a sealing material, and an upper surface leading to the side surfaces including the openings as the side clamps approach the battery case. An inspection head which clamps the battery case around the opening of the battery case by clamping the battery case by an upper clamp provided through a parallel link with respect to the side clamp so as to approach from the upper direction through the seal member;
A device for manufacturing a battery, comprising: a liquid leakage measurement device for sucking air in the battery case via an opening of the battery case and measuring a volatile component of an electrolyte solution contained in the sucked air. An apparatus for manufacturing a battery having a battery case having an opening communicating with the outside on at least part of the side thereof, and a battery sealed with an electrolyte solution and accommodated in the battery case,
The side clamp which contacts the side surface containing the opening of the battery case which accommodated the battery which enclosed the said electrolyte solution through a sealing material, and the upper and lower surfaces connected to the side surface containing this opening according to the approach of the battery case of the side clamp, respectively. An inspection head which clamps the battery case around the opening of the battery case by clamping the battery case by means of vertical clamps provided through parallel links with respect to the side clamps so as to approach from the up-down direction through the sealing material;
A device for manufacturing a battery, comprising: a liquid leakage measurement device for sucking air in the battery case via an opening of the battery case and measuring a volatile component of an electrolyte solution contained in the sucked air. 3. The method according to claim 1 or 2,
The parallel link has an extension that extends further from the coupling to the side clamp,
In the middle of the approach movement of the side clamp to the battery case, the extension portion is coupled to the stopper so that the parallel link is rotated from the upright state to the battery case side, and the upper clamp or the upper clamp and the side clamp are placed on the upper or upper surface of the battery case. The battery manufacturing apparatus characterized by the above-mentioned so as to approach from an up-down direction. The method of claim 3,
A protruding engagement piece is provided at a rear position on a line parallel to the moving direction of the side clamp, including a stopper in contact with the extension portion,
When the coupling piece is returned to the standby position in a state where the parallel link is rotated from the upright state to the battery case side, the coupling piece is coupled to the distal end of the parallel link to fix the side clamp to the standby position. Manufacturing device. A method of manufacturing a battery having a battery case having an opening communicating with the outside on at least part of the side thereof, and a battery sealed with an electrolyte solution and accommodated in the battery case,
A side clamp contacting the side and bottom surfaces including the openings of the battery case accommodating the battery containing the electrolyte solution through a sealing material, and an upper surface leading to the side surfaces including the openings as the side clamps approach the battery case. A sealing step of clamping the battery case by an upper clamp provided through a parallel link with respect to the side clamp so as to approach from the upper direction through the seal member, and sealing around the opening of the battery case;
And a liquid leakage measurement step of sucking air in the battery case via an opening of the battery case and measuring a volatile component of an electrolyte solution contained in the sucked air. A method of manufacturing a battery having a battery case having an opening communicating with the outside on at least part of the side thereof, and a battery sealed with an electrolyte solution and accommodated in the battery case,
The side clamp which contacts the side surface containing the opening of the battery case which accommodated the battery which enclosed the said electrolyte solution through a sealing material, and the upper and lower surfaces connected to the side surface containing this opening according to the approach of the battery case of the side clamp, respectively. A sealing step of clamping the battery case by means of vertical clamps provided through parallel links with respect to the side clamps so as to approach from the vertical direction through the sealing member, and sealing around the opening of the battery case;
And a liquid leakage measurement step of sucking air in the battery case via an opening of the battery case and measuring a volatile component of an electrolyte solution contained in the sucked air. An inspection method of a battery having a battery case having an opening communicating with the outside on at least part of the side thereof, and a battery sealed with an electrolyte solution and accommodated in the battery case,
A side clamp contacting the side and bottom surfaces including the openings of the battery case accommodating the battery containing the electrolyte solution through a sealing material, and an upper surface leading to the side surfaces including the openings as the side clamps approach the battery case. A sealing step of clamping the battery case by an upper clamp provided through a parallel link with respect to the side clamp so as to approach from the upper direction through the sealing material, and sealing around the opening of the battery case;
And a liquid leakage measurement step of sucking air in the battery case via an opening of the battery case and measuring a volatile component of an electrolyte solution contained in the sucked air. An inspection method of a battery having a battery case having an opening communicating with the outside on at least part of the side thereof, and a battery sealed with an electrolyte solution and accommodated in the battery case,
The side clamp which contacts the side surface containing the opening of the battery case which accommodated the battery which enclosed the said electrolyte solution through a sealing material, and the upper and lower surfaces connected to the side surface containing this opening according to the approach of the battery case of the side clamp, respectively. A sealing step of clamping the battery case by means of up and down clamps provided through parallel links with respect to the side clamps so as to approach from the up and down direction through the sealing member, and sealing around the opening of the battery case;
And a liquid leakage measurement step of sucking air in the battery case via an opening of the battery case and measuring a volatile component of an electrolyte solution contained in the sucked air.

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