KR102011189B1 - Battery test apparatus and battery test method - Google Patents

Abstract

The battery test apparatus 1 is a battery test apparatus for performing a crush test or a nailing test of the battery 10. The battery test apparatus 1 is a pressurizing part 6 which arrange | positions so that the battery 10 may be located between the opposing part 4, and the pressurizing part 6 is the direction (D1) which pressurizes the battery 10. Alternatively, the driving unit 7 moving in the direction D2 for releasing the pressurization, the container 8 in which the processing liquid 81 for shorting or extinguishing the battery 10 is stored, and the pressurizing unit 6 includes the driving unit ( The battery movement means 50 which moves the battery 10 toward the container 8 by moving to the direction D2 which releases pressurization by 7) is provided.

Description

Battery test apparatus and battery test method {BATTERY TEST APPARATUS AND BATTERY TEST METHOD}

The present invention relates to a battery test apparatus and a battery test method.

Conventionally, as a test for evaluating the safety of secondary batteries such as lithium ion batteries, mechanical safety tests such as a crush test and a nailing test have been performed. The batteries after these tests have been carried out are safely treated by placing them in a treatment liquid such as brine and electrically shorting them completely. In addition, even in the event of abnormal heat generation, ignition or ignition rupture of the battery during the test, after the fire is extinguished by a fire extinguisher or the like, the battery is placed in salt water.

As an example of a battery test apparatus, Japanese Patent Application Laid-Open No. 2013-224832 discloses a vibration test having a diaphragm in which a battery to be evaluated is placed, and a container in which a processing liquid for extinguishing a battery is disposed adjacent to the diaphragm. An apparatus is disclosed. This test apparatus has a structure in which the battery is dropped into the container and extinguished by pushing the battery by an extrusion unit disposed on the diaphragm when detecting abnormal heat generation, ignition or the like of the battery during the test.

The test apparatus disclosed in Japanese Unexamined Patent Publication No. 2013-224832 has a structure in which the battery is automatically dropped into a container containing a processing liquid by pushing the battery by an extrusion unit. In this case, there exists a problem that an apparatus cost increases and an installation space also increases for installing an extrusion unit. In order to reduce the device cost, when the battery after the test is put into the processing liquid by hand without installing the extrusion unit, the battery is electrically unstable by undergoing physical damage during the test. It is a problem. Moreover, when putting a ignition battery into a process liquid, it is necessary to wait for a long time for a battery to burn completely, and it is also difficult to judge whether a battery is completely burned in the first place.

SUMMARY OF THE INVENTION An object of the present invention is to provide a battery test apparatus and a battery test method which can suppress an increase in device cost and installation space and can quickly and safely process a battery after a test.

A battery test apparatus according to one aspect of the present invention is a battery test apparatus for performing a collapse test or a nailing test of a battery. The battery test apparatus includes a pressurizing portion arranged such that the battery is positioned between an opposing portion, a driving portion for moving the pressurizing portion in a direction in which the battery is pressurized or in a direction in which the pressurization is released, and the battery is short-circuited. Or a container in which a processing liquid for extinguishing is stored, and battery moving means for moving the battery toward the container by moving in the direction in which the pressurizing portion releases the pressurization by the drive unit.

A battery test method according to another aspect of the present invention is a battery test method for pressurizing a battery by a pressurizing unit to perform a crush test or a nailing test. In the battery test method, the battery is moved toward a container in which a processing liquid for shorting or extinguishing the battery is stored using a driving force for moving the pressurizing portion in a direction in which the pressurization is released.

According to the present invention, it is possible to provide a battery test apparatus and a battery test method which can suppress an increase in device cost and installation space, and can quickly and safely process a battery after a test.

1: is a schematic diagram which shows this structure from the side of the battery test apparatus concerning Embodiment 1 of this invention.
2 is a schematic view showing the configuration seen from above the battery test apparatus.
3 is a schematic diagram showing a state in which a battery is pressurized using the battery test apparatus.
It is a schematic diagram which shows the state which dropped the battery in the container using the said battery test apparatus.
5 is a schematic view showing a modification of the battery test apparatus according to the first embodiment.
It is a schematic diagram which expands and shows the connection part of a press part and a battery in the said battery test apparatus.
FIG. 7: is a schematic diagram which shows this structure from the side of the battery test apparatus concerning Embodiment 2 of this invention.
8 is a schematic view showing a modification of the battery test apparatus according to the second embodiment.
It is a schematic diagram which expands and shows the vicinity of the press part in the battery test apparatus which concerns on Embodiment 3 of this invention.
10 is a schematic diagram showing the structure of a ball screw.
It is a schematic diagram which shows the structure of a rack and pinion.
It is a schematic diagram which shows the state which the magnet installed in the battery and the magnet provided in the pressurization part adsorb | sucked.
It is a schematic diagram which shows a state in which a battery falls to a container by gravity.
FIG. 14: is a schematic diagram which shows a part of structure of the battery test apparatus provided with the pin and the engagement member engaged with this.
It is a schematic diagram which shows the state which the engagement member caught by the pin.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described in detail based on drawing.

(Embodiment 1)

[Battery test apparatus]

First, the structure of the battery test apparatus 1 which concerns on Embodiment 1 of this invention is demonstrated with reference to FIG. 1 schematically shows the entire configuration of the battery test apparatus 1. In FIG. 1, the horizontal direction is a horizontal direction, and the vertical direction is a gravity direction (vertical direction).

The battery test apparatus 1 is an apparatus for performing the collapse test of the battery 10 which is a secondary battery for vehicle installations, such as a lithium ion battery, for example. The crush test is a kind of safety test for the battery 10. By applying a predetermined pressing force to the battery 10, internal short circuits are generated pseudo-intentionally, the voltage and temperature changes at that time are measured, and the battery 10 It is a test which confirms the safety of the battery 10 by confirming whether or not it ignites by external observation.

As shown in FIG. 1, the battery test apparatus 1 includes an installation portion 3 for installing the battery 10, a press portion 6 for pressurizing the battery 10, and a press portion 6. The opposing part 4 which opposes the said press part 6 so that the battery 10 may be located in between, the drive part 7 which generate | occur | produces the driving force which moves the press part 6 to a horizontal direction, and the drive part 7 And a container (8) in which the processing liquid (81) for extinguishing the battery (10) which electrically shorts or ignites the battery (10) is stored. These structural members may be arrange | positioned in environmental test apparatuses, such as a thermostat and a constant temperature and humidity tank provided with an air conditioner. Although not shown, the battery test apparatus 1 is a control unit for operating the driving unit 7, a temperature measuring unit which is a sensor for measuring the temperature change of the battery 10 under test, and the voltage of the battery 10 under test. It further has a voltage measuring part etc. which measure a change. In addition, the opposing part 4 is not an essential structure, but can be omitted.

The mounting portion 3 is a rectangular block body viewed from the side, and has a flat mounting surface 31 on which the battery 10 is mounted. The opposing part 4 is a plate-shaped object which is rectangular in a longitudinal direction from the side view, and has a flat pressing surface 4A for pressurizing the 2nd side part 10B of the battery 10 in a crush test. The opposing part 4 is fixed to the base 4B so as not to move during the crush test, and is disposed so as to be in contact with one side face 32 of the mounting part 3 or to be integral with the mounting part 3. It is.

The press part 6 is a rectangular plate body (pressing plate) from the side view, and has the flat press surface 61 for pressurizing the 1st side part 10A of the battery 10. As shown in FIG. As shown in FIG. 1, the first side portion 10A is a portion of the battery 10 that faces the pressing surface 61 in the horizontal direction. The driving part 7 is connected to the non-pressing surface 64 which is the site | part opposite to the pressing surface 61 in the press part 6, The press part 6 can move to a horizontal direction by driving the drive part 7 It is supposed to be done. For this reason, during the crushing test, the pressing section 6 is moved closer to the battery 10 to apply the pressing force to the battery 10, and the pressing section 6 is moved away from the battery 10. The pressing force can be released. Thus, the battery test apparatus 1 is a horizontal frame crush test apparatus which pressurizes the battery 10 to a horizontal direction, and performs a crush test.

The drive part 7 is for generating the driving force for moving the press part 6 to a horizontal direction. The drive part 7 has the cylinder 72 and the rod 71 provided so that advancing and moving in the horizontal direction with respect to the cylinder 72 is possible. As shown in FIG. 1, the tip end of the rod 71 is connected to the site | part substantially center of the height direction in the press part 6, and the rod 71 is the insertion hole 5B formed in the support part 5 Penetrating) The rear end of the rod 71 (the part opposite to the front end) projects outward from the outer surface 5C of the support 5. A cylinder 72 is connected to the rear end. The cylinder 72 has a drive source (not shown), such as a hydraulic pump, a pneumatic pump, or an electric motor. By driving this drive source, the rod 71 is moved back and forth in the horizontal direction, and the direction D1 (left direction in FIG. 1) for pressing the battery 10 and the direction D2 for releasing the pressurization of the battery 10 ( The pressing part 6 may be horizontally moved in the right direction in FIG. 1.

The container 8 is a box body provided with an opening 82 above. The height of the container 8 is lower than the installation part 3, and is arrange | positioned on the opposite side to the opposing part 4 with respect to the installation part 3. Specifically, the container 8 is arrange | positioned so that the other side surface 33 in the installation part 3 may contact. For this reason, as shown in FIG. 1, the opening part 82 is located below the installation surface 31, and the step | step difference is formed between the opening part 82 and the installation surface 31. As shown in FIG. For this reason, it can fall in the container 8 by moving the battery 10 arrange | positioned on the mounting surface 31 to direction D2.

The container 8 has a depth capable of storing a predetermined amount of the processing liquid 81. The treatment liquid 81 is a digestion liquid for extinguishing the battery 10 which electrically shorts or ignites the battery 10 during or after the test. As the treatment liquid 81, for example, an aqueous sodium chloride solution (salt) can be used. However, the processing liquid 81 is not limited to this, and may be a liquid capable of performing a short circuit and a fire extinguishing process of the battery 10.

The battery test apparatus 1 moves the battery movement means 50 which moves the battery 10 toward the container 8 by moving to the direction D2 in which the press part 6 releases pressurization by the drive part 7. Have more. Specifically, the battery movement means 50 is comprised by the connection member, such as the wire which connects the press surface 61 and the battery 10 of the press part 6 mutually. By providing the battery moving means (connection member) 50, the battery 10 can be pulled in the same direction D2 as the pressing section 6 moves in the direction D2. Therefore, the battery 10 can be moved toward the container 8 by dragging the battery 10 on the installation surface 31 by the battery moving means 50. For this reason, as shown in FIG. 4, the battery 10 can be dropped in the container 8 and immersed in the process liquid 81, and the short circuit and the fire-extinguishing process of the battery 10 can be performed.

In this manner, in the battery test apparatus 1, the battery 10 is moved toward the container 8 by using a driving force for moving the pressurizing portion 6 in the direction D2 when the pressurization of the battery 10 is released. Can be. That is, the drive mechanism for moving the press part 6 and the drive mechanism for moving the battery 10 toward the container 8 can be used together. For this reason, it is not necessary to separately install the drive mechanism for pushing out the battery 10 toward the container 8 separately from the drive mechanism (drive part 7) for horizontally moving the press part 6. For this reason, the electrically unstable battery 10 during or after a test can be put into the processing liquid 81 without a hand, and the short circuit and the fire-extinguishing process of the battery 10 can be performed more safely.

By the way, in the crush test, the battery 10 may abnormally generate | occur | produce and ignite by pressurizing the battery 10 and internally shorting it. On the other hand, the connection member 50 has heat resistance which withstands heat_generation | fever of the battery 10, and has fire resistance which withstands ignition of the battery 10. FIG. Specifically, the connection member 50 is comprised by the wire which consists of materials, such as stainless steel. For this reason, even when the battery 10 ignites during the test, the connection member 50 may not burn out completely, and even when the battery 10 is abnormally heated and the temperature rises significantly, it may exist without melting. However, the connection member 50 is not limited to what consists of stainless steel, but may be what consists of different materials. Moreover, the connection member 50 is not limited to the case comprised by a wire, For example, you may be comprised by other members, such as a chain.

In addition, when the battery 10 is pulled toward the container 8 by the connection member 50, the load according to the weight of the battery 10 is added to the connection member 50. On the other hand, the connection member 50 has the durability of the grade which is not broken by the load added when moving the battery 10 toward the container 8. As shown in FIG.

2 is a plan view when the battery test apparatus 1 is viewed from above. As shown in FIG. 2, the pressing surface 61 has a first surface portion 61A facing the first side portion 10A, which is a pressurized portion in the battery 10, and both sides of the first surface portion 61A. The pair of 2nd surface part 61B located is provided. Moreover, the connection member 50 has the 1st edge part 51 and the 2nd edge part 52 which is an edge part on the opposite side to the 1st edge part 51. As shown in FIG. And the connection member 50 is the 1st end part 51 (connection part P1) connected to the 2nd surface part 61B, and the 2nd end part connected to the 3rd side part 10C of the battery 10 ( 52) (connection part P2). The first and second ends 51 and 52 are fixed to the pressing portion 6 or the battery 10 by any fixing means having heat resistance and fire resistance, such as bolts, adhesives or seal members, for example. . Moreover, 3rd side part 10C is a site | part perpendicular | vertical to 10 A of 1st side parts, and is a site | part which is not pressurized by the press part 6. For this reason, as shown in FIG. 2, the connection member 50 uses the press part 6 and the battery 10 so that it may not pass through the space S between 1st side part 10A and 1st surface part 61A. I can connect it. For this reason, when making the press part 6 close to the battery 10 at the time of a crush test, the connection member 50 can be prevented from being pinched between the press part 6 and the battery 10.

In addition, the location which connects the 1st and 2nd edge parts 51 and 52 of the connection member 50 is not limited to the location shown in FIG. For example, the first end portion 51 may be connected to the lower surface 62 (FIG. 1) of the pressing portion 6, and the second end portion 52 is the second side portion 10B of the battery 10. (The site opposite to the first side portion 10A), may be connected to the fourth side portion 10D of the battery 10, or may be connected to the upper surface of the battery 10. Moreover, it is not limited to the case where the 2nd edge part 52 is fixed to the battery 10 by a bolt, an adhesive agent, a sealing member, etc., The connection member 50 may be wound around the outer periphery of the battery 10.

Moreover, it is not limited to the case where one connection member 50 is provided, As shown in FIG. 5, several (for example, two) connection members 50A and 50B may be provided. In this case, the 1st connection member 50A connects one 2nd surface part 61B in the press part 6, and the 3rd side part 10C of the battery 10, and the 2nd connection member 50B. ), The other 2nd surface part 61B in the press part 6 and the 4th side part 10D (part on the opposite side to 3rd side part 10C) of the battery 10 may be connected. In this way, the two connecting members 50A, 50B are connected to both side portions 10C, 10D of the battery 10, respectively, and the battery 10 is pulled toward the container 8 by using the same. The battery 10 can be attracted more stably than in the case of using the connection member 50.

6 enlarges and shows the connection part of the battery 10 and the press part 6. As shown in FIG. 6, the connecting member 50 may have a length corresponding to the shortest distance L1 between the connecting portion P1 and the connecting portion P2, but the entire length L greater than or equal to the shortest distance L1. You may have That is, the connection member 50 has the extra length L-L1 corresponding to the difference between the total length L and the shortest distance L1, and as shown in FIG. 6, in the state of being loose in the standby state. You may become.

However, if the excess length L-L1 is too long, even if the pressurizing portion 6 is moved from the standby position (FIG. 1) to the retracted position (FIG. 4), the battery 10 will fall to the container 8. It becomes impossible. Specifically, as shown in FIG. 1, the distance L2 between the non-pressurizing surface 64 of the pressing portion 6 and the inner surface 5A of the supporting portion 5 in the standby state is determined in terms of the apparatus structure, and is pressurized. The distance that the section 6 can move back corresponds to the distance L2. For this reason, it is necessary to move the battery 10 to the position which can fall in the container 8, while the press part 6 moves the distance L2. By setting the upper limit of the extra length L-L1 in this respect, the battery 10 can be more surely dropped into the container 8 while the pressurizing portion 6 moves by the distance L2.

[Battery test method]

Next, the battery test method which concerns on this embodiment implemented using the said battery test apparatus 1 is demonstrated. In the battery test method, a crush test is performed by pressing the battery 10 in the horizontal direction by the pressing unit 6.

As shown in FIG. 1, first, in the battery test apparatus 1 of a standby state, the battery 10 which is evaluation object is arrange | positioned on the installation surface 31 of the installation part 3. As shown in FIG. At this time, the battery 10 is disposed at the position on the left side in FIG. 1 so that the second side portion 10B is in contact with the pressing surface 4A. And the press part 6 (pressure side 61) and the battery 10 (3rd side part 10C) are connected by the connection member 50. As shown in FIG. In addition, as test conditions, the pressing force 6 applied to the battery 10 from the pressing part 6 and the crushing speed (mm / s) which is a speed for moving the pressing part 6 in the horizontal direction to pressurize the battery 10 ( kN), the stroke (mm) etc. which are distances which move the press part 6 to a horizontal direction, are input by a user in a control part.

Next, when the start switch is pressed by the user, the pressing section 6 starts the movement in the direction D1 by the driving section 7, and the pressing surface 61 contacts the first side portion 10A of the battery 10. All. For this reason, the battery 10 is in a state where the first and second side portions 10A, 10B are sandwiched between the pressing portion 6 and the opposing portion 4. In this state, the driving section 7 further moves the pressing section 6 in the direction D1 at the set compression speed (mm / s), so that the battery 10 is pressed surfaces 61 and 4A as shown in FIG. By the horizontal direction. In the meantime, the temperature change and the voltage change of the battery 10 are measured with time.

Then, after the pressing section 6 moves by the set stroke (mm), the pressing section 6 moves in the direction D2 by the driving section 7, whereby the pressurization of the battery 10 is released. And as shown in FIG. 1, the press part 6 returns to the original standby position, and the external observation with respect to the battery 10 after crushing is performed in this state.

After that, the pressing section 6 is further moved in the direction D2 by the driving section 7. For this reason, the battery 10 connected to the press part 6 via the connection member 50 moves on the installation surface 31, and moves to the same direction D2. And as shown in FIG. 4, the battery 10 can be dropped in the container 8 by moving the press part 6 to a retracted position (a position where the non-pressurizing surface 64 contacts 5A of inner surfaces). .

As described above, in the battery test method according to the present embodiment, the battery 10 is pulled toward the container 8 by using the driving force for moving the pressurizing portion 6 in the direction D2 in which the pressure of the battery 10 is released. Pull it to move it. For this reason, the electrically unstable battery 10 after a test can be put into the processing liquid 81 without a hand, and when the battery 10 is electrically shorted and fired by the processing liquid 81, Can digest (10). In addition, even when ignition occurs during pressurization of the battery 10 and an urgent need for extinguishing occurs, the battery 10 is moved toward the container 8 by moving the pressurizing portion 6 in the direction D2 in the same manner. The liquid 10 can also be used to extinguish the battery 10 emergencyly.

[Action effect]

Next, the characteristics and operational effects of the battery test apparatus 1 and the battery test method according to the present embodiment will be described.

The battery test apparatus 1 is an apparatus for performing a collapse test of the battery 10. The battery test apparatus 1 includes a pressurizing portion 6 arranged such that the battery 10 is positioned between the opposing portion 4, a direction D1 for pressurizing the battery 10 with the pressurizing portion 6, or The drive part 7 which moves to the direction D2 which releases the said pressurization, the container 8 in which the process liquid 81 for shorting or extinguishing the battery 10 is stored, and the pressurization part 6 is the drive part 7 The battery moving means 50 which moves the battery 10 toward the container 8 by moving to the direction D2 which releases pressurization by the is provided.

The battery test method is a test method for pressurizing the battery 10 by the press section 6 to perform a crush test. In the battery test method, using the driving force for moving the pressurizing portion 6 in the direction D2 in which the pressurization is released, toward the container 8 in which the processing liquid 81 for shorting or extinguishing the battery 10 is stored. The battery 10 is moved.

According to the said characteristic, the crushing test can be performed by moving the press part 6 by the drive part 7, and pressurizing the battery 10. FIG. And when the pressurizing part 6 is moved by the drive part 7 and the pressurization of the battery 10 is released, the battery 10 can be moved toward the container 8 by the battery moving means 50. . At this time, the battery 10 can be moved to the container 8 side by using the driving force generated by the driving unit 7. For this reason, the battery 10 can be accommodated in the container 8, and the processing liquid 81 can short-circuit or extinguish the battery 10. For this reason, it is not necessary to carry out the operation | work which puts the electrically unstable battery 10 in the process liquid 81 during a test or after a test by hand, and can perform a short circuit or fire-extinguishing process more safely. In addition, since the battery 10 can be put into the processing liquid 81 without going through a hand, even when the battery 10 is ignited, there is no need to wait until the battery 10 is completely burned out, and the safety treatment is promptly performed. Can be done.

Moreover, according to the said characteristic, when releasing the pressurization of the battery 10, the battery 10 can be moved toward the container 8 using the driving force for moving the press part 6. For this reason, it is not necessary to install the large and expensive drive mechanism for pushing the battery 10 toward the container 8 separately from the mechanism which drives the press part 6, and to increase the apparatus cost and installation space. It can be suppressed. Therefore, according to the said characteristic, while suppressing the increase of apparatus cost and installation space, the battery 10 after a test can be safely processed quickly.

In the battery test apparatus 1, the battery movement means 50 is comprised by the connection member 50 which connects the press part 6 and the battery 10 with each other. In the battery test method, the battery 10 is moved toward the container 8 by the connecting member 50. For this reason, by directly connecting the press part 6 and the battery 10 with the connection member 50, the battery 10 is more reliably directed toward the container 8 by using a driving force for moving the press part 6. You can move it.

In the battery test apparatus 1, the connection member 50 has heat resistance that withstands heat generation of the battery 10 in the crush test. For this reason, even when the calorific value of the battery 10 increases during the test, the connection member 50 can be prevented from melting and disappearing.

In the battery test apparatus 1, the connection member 50 has fire resistance to withstand ignition of the battery 10 in the crush test. For this reason, even when the battery 10 ignites during a test, the connection member 50 can be prevented from burning completely.

In the battery test apparatus 1, the connection member 50 has durability that does not break due to a load added when the battery 10 is moved toward the container 8. For this reason, when the battery 10 is moved by the connection member 50, the connection member 50 can be prevented from breaking, and the battery 10 can be moved more reliably toward the container 8.

The battery test apparatus 1 includes a mounting portion 3 for mounting the battery 10. The container 8 is arrange | positioned on the opposite side to the opposing part 4 with respect to the mounting part 3. For this reason, as the pressurization part 6 moves to the direction D2 which releases pressurization, the battery 10 installed in the installation part 3 can be moved to the container 8 side more reliably.

(Embodiment 2)

Next, a battery test apparatus 1A according to Embodiment 2 of the present invention and a battery test method using the same will be described with reference to FIG. 7. The second embodiment is basically the same as the first embodiment, but differs from the first embodiment in that the battery moving means 50 is composed of the jig member 53 and the connecting member 54. Hereinafter, only the structure of the battery moving means 50 different from the said Embodiment 1 is demonstrated in detail.

As shown in FIG. 7, the battery moving means 50 includes a jig member 53 having an L-shape when viewed from the side, the jig member 53, and the pressing portion 6 (pressing surface 61). ) Are connected to each other (54). In the second embodiment, one end of the connecting member 54 is connected to the pressing surface 61, while the other end is not directly connected to the battery 10.

The jig member 53 is arrange | positioned at the left side in FIG. 7 on the installation surface 31. As shown in FIG. The jig member 53 is interposed between the battery 10 (second side portion 10B) and the opposing portion 4, and has a first jig portion 53A having a shape extending in the vertical direction, and a battery ( A second jig portion 53B having a shape extending in the horizontal direction is interposed between the lower surface of 10) and the installation surface 31. The first jig portion 53A faces the second side portion 10B of the battery 10 and has a pressing surface 53AA for pressing the second side portion 10B in the horizontal direction (direction D2). . The second jig portion 53B is connected to the lower end of the first jig portion 53A and is integrally formed with the first jig portion 53A.

The connection member 54 is made of a wire having the same material and diameter as that of the connection member 50 of the first embodiment, and attracts heat and fire resistance and resistance to heat generation and ignition of the battery 10 and the battery 10. It has durability to the extent that it does not break when pulled. One end of the connecting member 54 is connected to the pressing surface 61, and the other end is connected to the upper portion of the first jig portion 53A. As shown in FIG. 7, the connecting member 54 is provided so as to pass above the battery 10. In addition, the arrangement | positioning method of the connection member 54 is not limited to this, You may connect to the 2nd jig | tool part 53B instead of the 1st jig | tool 53A. Moreover, the some connecting member 54 may be provided and the connecting member 54 may be connected with respect to each of the 1st jig part 53A and the 2nd jig part 53B.

In the battery test apparatus 1A having the above-described configuration, when the pressing section 6 is moved in the direction D2 by the driving section 7, the jig member 53 is dragged on the installation surface 31 while in the same direction D2. Go to. At this time, the battery 10 moves toward the container 8 by pressing the second side portion 10B in the direction D2 by the pressing surface 53AA. That is, in this embodiment, the battery moving means 50 moves the jig | tool member 53 to the same direction D2 by the drive force which moves the press part 6 to the direction D2, and to the said jig member 53. It is comprised so that the battery 10 may be pressed in the direction D2.

Next, a battery test method using the battery test apparatus 1A will be described. First, the battery 10 is disposed on the jig member 53. At this time, the battery 10 is in a state in which the second side portion 10B is in contact with the first jig portion 53A, and the bottom surface thereof is in contact with the second jig portion 53B. Then, after each test condition is input by the user, similarly to the first embodiment, the driving unit 7 moves the press section 6 in the direction D1 by the driving section 7 to press the battery 10 by pressurization, and then pressurizes thereafter. The unit 6 is returned to the standby state by moving in the direction D2.

After that, the pressing section 6 is further moved in the direction D2 by the driving section 7. For this reason, the jig | tool member 53 moves on the installation surface 31, and moves to the same direction D2. At this time, the battery 10 moves toward the container 8 by being pressed in the direction D2 by the pressing surface 53AA. Then, by moving the pressurizing portion 6 to the retracted position, the battery 10 can be dropped into the container 8, and the processing liquid 81 can short-circuit and extinguish the battery 10.

As described above, in the second embodiment, the jig member 53 is moved in the same direction D2 by the driving force for moving the pressurizing portion 6 in the direction D2, and the battery 10 is oriented by the jig member 53. Press D2 to move towards the container (8). For this reason, when the battery 10 is not the structure which can fix the connection member 54, or the deformation | transformation of the battery 10 by pressurization during a crush test, etc., the battery 10 and the press part 6 are connected to a connection member. Even when it cannot connect directly by 54, the battery 10 can be moved toward the container 8 by pressing by the jig member 53. As shown in FIG.

8, the jig | tool member 53 does not interpose between the lower surface of the battery 10 and the mounting surface 31, The 2nd side part 10B and the opposing part 4 of the battery 10 are shown. You may intervene only between). That is, the jig member 53 may be comprised by only the 1st jig part 53A (FIG. 7). For this reason, the jig member 53 can be formed in a simpler shape and smaller.

On the contrary, the jig member 53 may be comprised only by the 2nd jig | tool part 53B (FIG. 7), and may be interposed only between the lower surface of the battery 10 and the installation surface 31. As shown in FIG. In this case, the friction coefficient between the jig member 53 and the battery 10 is set to a predetermined value or more so that the battery 10 does not slip on the jig member 53 when the jig member 53 is moved in the direction D2. It is preferable.

In addition, a crush test may be performed by fixing the crush jig of various shapes to the press part 6. This crushing jig is specified by the test standard, and may be the form which a test is performed by fixing a crushing jig in this way. However, as in the first and second embodiments, the plate-like pressing portion 6 may be used without fixing the crushing jig.

(Embodiment 3)

Next, a battery test apparatus according to Embodiment 3 of the present invention will be described with reference to FIG. 9. Although Embodiment 3 is basically the same as Embodiment 1, 2, it differs from Embodiment 1, 2 in that a nailing test is performed.

9 enlarges and shows the vicinity of the press part 6 in a battery test apparatus. As shown in FIG. 9, the press part 61 of the press part 6 is provided with the top part 63 for penetrating the battery 10. As shown in FIG. For this reason, the moving part 63 can penetrate the battery 10 by moving the pressurizing part 6 to the direction which approaches the battery 10 by the drive part 7. For this reason, the internal short circuit may generate | occur | produce the battery 10, and the nailing test which confirms the change of the temperature and voltage at that time, the external appearance state, etc. of the battery 10 can be performed.

Then, after the nailing test is completed, the battery 10 is moved toward the container 8 by using the driving force for retracting and moving the pressurizing portion 6 in the same manner as in the first and second embodiments. By falling inside, the short circuit and the fire extinguishing process of the battery 10 can be performed.

In addition, depending on the diameter of the government 63 and the weight of the battery 10, the government 63 may not come out of the battery 10. Therefore, a mechanism for removing the government 63 from the battery 10 is provided. You may do so.

(Other embodiments)

Finally, other embodiment of this invention is described.

Although the case where the drive part 7 had the rod 71 and the cylinder 72 was demonstrated in said Embodiment 1-3, it is not limited to this. As the driving unit 7, various linear driving mechanisms for generating a driving force for moving the pressing unit 6 in the directions D1 and D2 can be adopted. For example, as shown in FIG. 10, the drive part 7 is a screw shaft 75, the nut 73 attached to the screw shaft 75, and the screw groove 75A provided in the screw shaft 75. As shown in FIG. It may be comprised by the ball screw provided with the some ball 74 which circulates accordingly. In this structure, the nut 73 can be moved linearly by rotating the screw shaft 75 around an axis, and can horizontally move by pressing the press part 6 by 73 A of flange surfaces. In addition, the pressing portion 6 may be fixed to the flange face 73A of the nut 73.

Moreover, as shown in FIG. 11, the drive part 7 may be comprised by the gear (rack and pinion) provided with the rack 77 and the pinion 76. As shown in FIG. In this structure, the rotational force of the pinion 76 can be converted into the linear motion of the rack 77, and the press part 6 can be horizontally moved using this linear motion. In addition, a linear guideway, a belt type linear motion mechanism, or the like may also be used.

In the first embodiment, the battery moving means is constituted by the connecting member 50. In the second embodiment, the case in which the battery moving means is constituted by the jig member 53 and the connecting member 54 has been described. It is not limited to. For example, as shown in FIG. 12, the first magnet 65 attached to the side surface of the pressing section 6 and the second magnet 66 attached to the third side portion 10C of the battery 10. The battery moving means may be configured. Since the first magnet 65 and the second magnet 66 are very different from each other, they generate a suction force. For this reason, when moving the press part 6 to the direction D2, the battery 10 can be attracted to the container 8 side by the suction force of the 1st and 2nd magnets 65 and 66. FIG. And as shown in FIG. 13, when the battery 10 moves away from the installation surface 31, the battery 10 will fall in the container 8 by gravity. For this reason, similarly to the case where the battery 10 and the press part 6 are physically connected as in the first embodiment, the battery 10 is moved to the container 8 side by using a driving force for moving the press part 6. You can move it. In addition, a magnet may be arranged on the jig member 53 of the second embodiment, and the jig member 53 may be attracted by the attraction force of the magnet. In addition, when the battery 10 itself is magnetic, the second magnet 66 may be omitted.

14, the battery moving means is provided in the jig | tool member 53, the pin 55 (pin extended to the front side of paper surface) provided in the jig | tool member 53, and the press part 6, The hook part 67A which engages with the pin 55 may be comprised by the engaging member 67 formed in the front-end | tip. As shown in FIG. 14, the engagement member 67 is rotatable centering on the point 68 which is a connection part with respect to the press part 6. As shown in FIG. In this structure, when pressing the battery 10 by the press part 6, the inclined part provided in the front-end | tip of the hook part 67A abuts the pin 55, and the said hook part 67A raises up, and FIG. As shown, the engaging member 67 can be fastened to the pin 55. In this state, the jig member 53 on which the battery 10 is raised can be moved toward the container 8 by moving the pressing section 6 in the direction D2. The pin 55 may be attached to the battery 10 itself rather than the jig member 53.

Moreover, the battery 10 which is evaluation object is not limited to a lithium ion battery, For example, alkaline secondary batteries, such as a nickel cadmium battery and a nickel hydrogen battery, may be sufficient.

The treatment liquid 81 is not limited to salt water, but may be an aqueous electrolyte solution in which other electrolytes such as potassium chloride and lithium chloride are dissolved.

Moreover, when the said embodiment is outlined, it is as follows.

The battery test apparatus according to the present embodiment is a battery test apparatus for performing a collapse test or a nailing test of a battery. The battery test apparatus includes a pressurizing portion arranged such that the battery is positioned between an opposing portion, a driving portion for moving the pressurizing portion in a direction in which the battery is pressurized or in a direction in which the pressurization is released, and the battery is short-circuited. Or a container in which a processing liquid for extinguishing is stored, and battery moving means for moving the battery toward the container by moving in the direction in which the pressurizing portion releases the pressurization by the drive unit.

In the said battery test apparatus, a crush test or a nailing test can be performed by moving a press part by a drive part, and pressurizing a battery. And when a pressurizing part is moved by a drive part and the pressurization of a battery is canceled | released, a battery movement means can move a battery toward a container. For this reason, a battery can be accommodated in a container and a short circuit or fire extinguishing can be performed with a process liquid. For this reason, it is not necessary to carry out the operation | work which puts the electrically unstable battery in a process liquid during the test or after a test by hand, and can carry out a short circuit or fire-extinguishing process more safely. In addition, since the battery can be put into the processing liquid without going through the hand, even when the battery is ignited, it is not necessary to wait until the battery is completely burned out, and the safety treatment can be performed quickly.

Moreover, in the said battery test apparatus, a battery can be moved toward a container using the driving force for moving a pressurizing part, when releasing pressurization of a battery. For this reason, it is not necessary to install the large and expensive drive mechanism for pushing a battery toward a container separately from the mechanism which drives a pressurizing part conventionally, and the increase of apparatus cost and installation space can be suppressed. Therefore, according to the said battery test apparatus, while the increase of apparatus cost and installation space can be suppressed, the battery after a test can be processed quickly and safely.

In the battery test apparatus, the battery moving means may be constituted by a connecting member that connects the pressing portion and the battery to each other.

According to this structure, since a pressurizing part and a battery are directly connected by a connection member, a battery can be moved more reliably toward a container by the driving force which moves the said pressurizing part.

In the battery test apparatus, the connection member may have heat resistance to withstand heat generation of the battery in the crush test or the nailing test.

According to this configuration, even when the heat generation amount of the battery increases during the test, the connection member can be prevented from melting and disappearing.

In the battery test apparatus, the connection member may have fire resistance to withstand ignition of the battery in the crush test or the nailing test.

According to this structure, even if a battery ignites during a test, it can prevent that a connection member burns off completely.

In the battery test apparatus, the battery moving means may have a jig member disposed so as to face a portion opposite to a portion pressed by the pressing portion in the battery. The battery moving means may be configured to move the jig member by a driving force for moving the pressing section in the direction of releasing the pressurization, and press the battery by the jig member.

According to this configuration, even when the battery and the pressurization portion cannot be directly connected due to the structure of the battery itself or deformation of the battery at the time of the test or the like, the battery can be moved toward the container by pressing by the jig member.

The battery test apparatus may further include a mounting portion for installing the battery. The said container may be arrange | positioned on the opposite side to the said opposing part from the said installation part.

According to this configuration, as the pressing section moves in the direction of releasing the pressurization, the battery provided in the mounting section can be moved more reliably to the container side.

The battery test method according to the present embodiment is a battery test method for pressurizing a battery by a pressurizing unit to perform a crush test or a nailing test. In the battery test method, the battery is moved toward a container in which a processing liquid for shorting or extinguishing the battery is stored using a driving force for moving the pressurizing portion in a direction in which the pressurization is released.

In the battery test method, in the crushing test or nailing test of the battery using the pressurizing part, the battery is moved toward the container by using a driving force to move the pressurizing part when the pressurization of the battery is released, and the treatment liquid in the container The battery can be shorted or extinguished. For this reason, it is not necessary to carry out the operation | work which puts the electrically unstable battery in a process liquid during the test or after a test by hand, and can carry out a short circuit or fire-extinguishing process more safely. In addition, since the battery can be placed in the processing liquid without going through the hand, even when the battery is ignited, it is not necessary to wait until the battery is completely burned out, and thus the safe processing can be performed quickly. Moreover, in the battery test method, it is not necessary to use a test apparatus provided separately from a mechanism for driving a pressurizing unit by a large and expensive driving mechanism that pushes the battery toward the container as in the prior art, and suppresses an increase in device cost and installation space. can do. Therefore, according to the said battery test method, while the increase of apparatus cost and installation space is suppressed, the battery after a test can be processed quickly and safely.

In the battery test method, the battery may be moved toward the container by a connecting member for connecting the pressurizing portion and the battery to each other.

According to this method, by using the connecting member which directly connects a pressurizing part and a battery, a battery can be moved more reliably toward a container using the driving force which moves the said pressurizing part.

In the battery test method, the jig member is placed in a direction in which the pressing is released by the driving force, using a jig member disposed to face a portion opposite to the portion pressed by the pressing portion in the battery. In addition to the movement, the battery may be pushed by the jig member to move toward the container.

According to this method, even when the battery and the pressurization portion cannot be directly connected due to the structure of the battery itself or deformation of the battery at the time of the test, etc., the battery can be moved toward the container by pressing by the jig member.

Claims (10)

A battery test apparatus for performing a collapse test or a nailing test of a battery,
A pressurizing part disposed such that the battery is positioned between the opposing part;
A driving unit for moving the pressing unit in a direction of pressing the battery or in a direction of releasing the pressing;
A container in which a treatment liquid for shorting or extinguishing the battery is stored;
And a battery moving means for moving the battery toward the container by moving the pressing part in the direction of releasing the pressure by the driving part, so that the battery is accommodated in the container,
The said battery movement means is a battery test apparatus comprised by the member which connects the said press part and the said battery mutually. A battery test apparatus for performing a collapse test or a nailing test of a battery,
A pressurizing part disposed such that the battery is positioned between the opposing part;
A driving unit for moving the pressing unit in a direction of pressing the battery or in a direction of releasing the pressing;
A container in which a treatment liquid for shorting or extinguishing the battery is stored;
And a battery moving means for moving the battery toward the container by moving the pressing part in the direction of releasing the pressure by the driving part, so that the battery is accommodated in the container,
The battery moving means is constituted by a jig member in contact with the battery, and a member connecting the pressing portion and the jig member to each other.
The jig member is configured to move by a driving force for moving the pressing section in a direction of releasing the pressing, and to move the battery toward the container. The method according to claim 1 or 2,
The said connecting member has heat resistance which withstands heat_generation | fever of the said battery in the said crushing test or the said nailing test. The method according to claim 1 or 2,
The said connecting member has a fire resistance which withstands the ignition of the said battery in the said crushing test or the said nailing test. The method according to claim 2,
The jig member is disposed so as to face a portion opposite to a portion pressed by the pressing portion in the battery. The method according to claim 1, 2 or 5,
Further provided with an installation unit for installing the battery,
The said container is a battery test apparatus arrange | positioned on the opposite side to the said opposing part as seen from the said installation part. The method according to claim 3,
Further provided with an installation unit for installing the battery,
The said container is a battery test apparatus arrange | positioned on the opposite side to the said opposing part as seen from the said installation part. As a battery test method for pressurizing a battery by a pressurizing part and performing a crushing test or a nailing test,
By using a driving force for moving the pressurizing portion in a direction in which the pressurization is released, the member is connected to the pressurizing portion and the battery with each other, and the battery is directed toward a container in which a processing liquid for shorting or extinguishing the battery is stored. And move the battery so that the battery is accommodated in the container. As a battery test method for pressurizing a battery by a pressurizing part and performing a crushing test or a nailing test,
The jig member is moved in a direction in which the pressing is released by a member connecting the pressing portion and the jig member in contact with the battery by using a driving force for moving the pressing portion in the direction in which the pressing is released. The battery test method, characterized in that for moving the battery so that the treatment liquid for shorting or extinguishing the battery is accommodated in the reservoir. The method according to claim 9,
By using the jig member disposed so as to face a portion opposite to a portion pressed by the pressing portion in the battery, the jig member is moved in the direction in which the pressing is released by the driving force, and the A battery test method, wherein the battery is brought into contact with the battery by a jig member to move toward the container.

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