JP2016198833A - Marking-off jig and battery cell decomposition method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a marking-off jig that can easily recover cut chips and stably draw marking-off lines and a battery cell decomposition method using such a marking-off jig.SOLUTION: In this marking-off jig 1, an adhesive roller 5 supported by the cutting edge body 12 of a cutting edge part 3 with a support member 4 is arranged on the side of the ridge 14 of the cutting edge part 3. Therefore, the marking-off jig 1 enables the adhesive roller 5 to capture cutting chips K generated by marking-off immediately after marking-off when an object is marked off with the cutting edge part 3. Therefore, the cutting chips K can be prevented from scattering to enable cleaning or recovery trouble to be saved, so that step workability can be improved. Further, the marking-off jig 1 can suppress hand blur to stably draw marking-off lines L because a blade tip 13 and the adhesive roller 5 come in contact with an object upon marking-off.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a ruled jig and a battery cell disassembling method.

  For example, when disassembling a used battery cell, there is a disassembling method in which a ruler jig is used to mark (cut) a battery cell case, and the case is disassembled along the ruled line. As a conventional ruler jig, there is a hand tool described in Patent Document 1, for example. This hand tool is provided with a blade and a support base that are fixed so as to be substantially perpendicular to the shaft portion at the tip of the shaft portion that is connected to the handle, and the angle between the blade and the support base and the cutting edge of the blade. The angle is defined to be within a predetermined range.

JP 58-66613 A

  By the way, there is a problem in that cutting scraps are generated when a ruled line is drawn using the ruled jig as described above. If the cutting waste is scattered, it may be necessary to clean and collect, and the workability of the process may be reduced. In addition, when manually scoring with a scribing jig, there is a problem that the scribing line is displaced from the target position due to sliding of the blade.

  The present invention has been made to solve the above-described problems, and is a ruler jig that can easily collect cutting scraps and can stably draw a ruled line, and such a ruler jig. An object of the present invention is to provide a method for disassembling a battery cell using.

  In order to solve the above problems, a ruler jig according to one aspect of the present invention is supported on a blade of a blade part by a handle part, a blade part provided on a tip side of the handle part, and a support member. And an adhesive roller disposed on the ridge portion side of the blade portion.

  In this ruler jig, the adhesive roller supported by the blade of the blade portion by the support member is disposed on the ridge portion side of the blade portion. Therefore, in this scoring jig, when scoring the object with the blade portion, the cutting waste generated by scoring can be captured immediately after scoring by the adhesive roller. Therefore, it is possible to prevent the cutting waste from being scattered and to save the trouble of cleaning and recovery, so that the workability of the process can be improved. Further, in this ruler jig, since the blade edge and the adhesive roller are in contact with the object at the time of ruler writing, it is possible to suppress blurring at hand and to draw a ruled line stably.

  The ruler jig may further include an attachment portion for attaching the support member so as to be rotatable in the in-plane direction of the blade. In this case, even when the blade portion is inclined at an angle at which the ruled line can be easily drawn, it is possible to suitably carry out the collection of the cutting waste by the adhesive roller and the suppression of the hand shake.

  The battery cell disassembling method according to one aspect of the present invention includes a step of drawing a ruled line on the battery cell case using the ruled jig, and the case is opened along the ruled line, and the internal element is removed from the case. And a step of taking out.

  In this battery cell disassembling method, the ruled line jig can be used to stably draw the ruled line, and the generated cutting waste can be quickly collected by the adhesive roller. Therefore, it is possible to prevent cutting waste from adhering to and mixing into the internal element taken out from the case.

  According to this ruler jig, it is possible to easily collect cutting waste and to draw a ruled line stably.

It is a perspective view which shows one Embodiment of the ruler jig. It is a principal part enlarged view which shows the structure of the attaching part in the jig | tool for ruled paper shown in FIG. It is a perspective view which shows an example of the disassembling method of the battery cell using the ruler jig shown in FIG. FIG. 4 is a perspective view showing a step subsequent to FIG. 3.

  Hereinafter, a preferred embodiment of the ruler jig will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view showing an embodiment of a ruler jig. As shown in FIG. 1, the ruler jig 1 includes a handle portion 2, a blade portion 3 provided on the distal end side of the handle portion 2, and an adhesive roller 5 supported on the blade portion 3 by a support member 4. And is configured. The ruler jig 1 is, for example, a jig used for disassembling used battery cells, and is used to draw a ruled line by cutting at the opening position when the case is opened.

  The handle portion 2 is a handle portion that allows the operator to grip the ruler jig 1. The handle part 2 may be made of wood or resin. The cross-sectional shape of the handle portion 2 may be a circle, an ellipse, or the like, and a recess or the like corresponding to the shape of the hand may be formed so that the operator can easily grasp it. In addition, the surface of the handle portion 2 may be provided with surface treatment for preventing slipping, unevenness with resin, or the like.

  The blade part 3 is a part that cuts the object to form a ruled line. The blade portion 3 includes a base 11 extending in the axial direction of the handle portion 2, and a blade body 12 extending substantially perpendicularly from the base 11 on the distal end side of the base 11. The handle portion 2 side at the tip of the blade 12 is a cutting edge 13 for cutting, and the opposite side of the handle portion 2 is a ridge portion 14. On the base side of the blade 12, a hole 15 (see FIG. 2) having a circular cross section used for attaching the support member 4 by the attaching part 21 described later is provided.

  The adhesive roller 5 is a portion that captures cutting waste generated when the object is cut by the blade portion 3. The adhesive roller 5 has a roller 17 around which an adhesive sheet 16 is wound. The pressure-sensitive adhesive sheet 16 is provided with perforations at regular intervals in the longitudinal direction, and the unused sheet can be exposed by removing the sheet whose adhesive strength has been reduced by use along the perforation. It can be done.

  The support member 4 is a portion that supports the adhesive roller 5 with respect to the blade portion 3. The support member 4 is formed in a bowl shape with, for example, metal. The distal end side of the support member 4 rotatably supports the adhesive roller 5 at one end side in the width direction of the adhesive roller 5. The center position in the width direction of the adhesive roller 5 is located on the extension line in the axial direction of the handle portion 2 and the base 11 in the plan view of the ruler jig 1. Further, the base end side of the support member 4 is attached to a position on the base side of the blade 12 by the attachment portion 21.

  As shown in FIG. 2, the attachment portion 21 is constituted by an attachment plate 22, bolts 23, and 15. The mounting plate 22 is a rectangular thin metal plate. A hole 25 having substantially the same diameter as the hole 15 formed on the base side of the blade 12 is provided at the center of the mounting plate 22. The corner portion of the mounting plate 22 is fixed to the base end side of the support member 4 by welding, for example. As the bolt 23, for example, a bolt with a knob (butterfly bolt / wing bolt) or the like is preferably used.

  The attachment portion 21 inserts the bolt 23 into the holes 15 and 25 in a state where the hole portion 15 on the blade body 12 side and the hole portion 25 on the attachment plate 22 side coincide with each other. The support member 4 is fixed to the blade 12 by screwing the nut 24 from the opposite side of the body 12. Thereby, the adhesive roller 5 is arranged at a certain interval from the peak portion 14 on the peak portion 14 side of the blade portion 3. Further, when attaching the support member 4, the orientation of the support member 4 is rotated in the in-plane direction of the blade 12 by rotating the attachment plate 22 relative to the blade 12 before the nut 24 is screwed onto the bolt 23. It can be adjusted freely. Thereby, the angles of the support member 4 and the adhesive roller 5 with respect to the blade 12 can be freely adjusted.

  Next, a battery cell disassembly method using the ruled jig 1 will be described.

  FIG. 3 is a perspective view showing an example of a battery cell disassembly method. The battery cell 31 shown in the figure is, for example, a lithium ion secondary battery. The battery cell 31 includes a case 32 having a substantially rectangular parallelepiped shape. The case 32 is made of, for example, aluminum and includes a bottomed main body portion 33 and a lid portion 34 welded to the main body portion 33 so as to close the opening on the one surface side of the main body portion 33. In the case 32, an electrode assembly (internal element) formed by alternately stacking positive electrodes and negative electrodes via separators is accommodated. In addition, although the positive electrode terminal connected to a positive electrode and the negative electrode terminal connected to a negative electrode are provided in the outer surface of the cover part 34 of case 32, illustration is abbreviate | omitted for simplification of description.

  When disassembling the battery cell 31, the battery cell 31 is discharged in advance. After the discharge, as shown in FIG. 3, the surface of the main body 33 is cut using the ruler jig 1, and the ruled line L is drawn. When the ruled line L is drawn, the angle of the support member 4 is previously set by the mounting portion 21 so that the adhesive roller 5 is in contact with the surface of the main body 33 on the rear side of the cutting position P where the cutting edge 13 cuts the surface of the main body 33. Adjust.

  In the example of FIG. 3, the ruled line L is made to circulate at a predetermined interval from the joining line W so as to be substantially parallel to the joining line W between the main body part 33 and the lid part 34. At this time, the cutting waste K generated at the cutting position P is quickly captured by the adhesive roller 5 located on the rear side of the cutting position P.

  After the formation of the ruled line L, as shown in FIG. 4, a cut along the joining line W and the ruled line L is made using a tool such as a nipper at a corner 41 formed by two adjacent side surfaces of the main body 33. Then, the gap between the two cuts is cut along the corner 41 with a nipper or the like. Then, the radio pliers 42 are inserted into the cut portions, and the wall portion of the main body 33 between the joining line W and the ruled line L is wound around the radio pliers 42 in a band shape, so that the joining line W and the ruled line L are aligned. The case 32 is opened. Thereafter, by taking out the electrode assembly from the case 32, it is possible to inspect and analyze the electrode assembly.

  As described above, in the ruler jig 1, the adhesive roller 5 supported by the blade 12 of the blade portion 3 by the support member 4 is disposed on the peak portion 14 side of the blade portion 3. Therefore, in the ruler jig 1, the cutting waste K generated by the ruler can be captured immediately after the ruler by the adhesive roller 5 when the blade 3 performs the ruler on the object. Therefore, the cutting waste K can be prevented from being scattered, and the labor of cleaning and recovery can be saved, so that the workability of the process can be improved. By using the adhesive roller 5, the cutting waste K can be recovered with a stronger force than when the cutting waste K is recovered by air suction, for example. For this reason, even if the root of the cutting waste K remains on the surface of the case 32 and is in a state like a burr, the cutting waste K can be separated from the surface of the case 32 and collected.

  Further, in the ruler jig 1, since the blade edge 13 and the adhesive roller 5 are in contact with the object during ruler writing, the angle of the blade edge 13 with respect to the object is fixed, and hand shake can be suppressed. Furthermore, the lateral displacement of the blade edge 13 can be made difficult to occur when the adhesive roller 5 is in contact with the object. Therefore, the ruled line L can be drawn stably.

  Further, the ruler jig 1 includes an attachment portion 21 for attaching the support member 4 so as to be rotatable in the in-plane direction of the blade 12. Thereby, when the blade part 3 is inclined to an angle at which the ruled line L can be easily drawn, the angle of the support member 4 can be freely adjusted accordingly. Therefore, it is possible to suitably carry out the recovery of the cutting waste K by the adhesive roller 5 and the suppression of hand shake.

  Further, in the method of disassembling the battery cell 31 according to the present embodiment, the ruled line jig L can be stably drawn by using the ruled line jig 1, and the generated cutting waste K can be quickly removed by the adhesive roller 5. Can be recovered. Therefore, it is possible to prevent cutting waste from adhering to and mixing into the electrode assembly taken out from the case 32. By preventing the cutting scraps from adhering to and mixing with the electrode assembly, it is possible to prevent the inspection and analysis of the extracted electrode assembly from causing defects due to the cutting scraps.

  The present invention is not limited to the above embodiment. For example, in the above embodiment, the hole 25 provided in the mounting plate 22 has substantially the same diameter as the hole 15 formed on the base side of the blade 12, but the hole 15 may be a long hole. In this case, in addition to the adjustment of the angle, the position of the adhesive roller 5 can be adjusted in the depth direction when viewed from the handle portion 2 side.

  Moreover, in the said embodiment, although the ruled marking of the case 32 of the battery cell 31 was illustrated, the ruled jig 1 is not limited to the disassembly of the battery cell but can be applied to the opening of a general sealed metal container. . The use of the ruler jig 1 is not limited to inspection / analysis of battery cells, but can also be applied to uses such as recycling by sorting internal elements.

  DESCRIPTION OF SYMBOLS 1 ... Jig for ruled lines, 2 ... Handle part, 3 ... Blade part, 4 ... Support member, 5 ... Adhesive roller, 12 ... Blade, 14 ... Peak part, 21 ... Mounting part, 31 ... Battery cell, 32 ... Case, L ... Ruled line.

Claims (3)

The handle part,
A blade provided on the tip side of the handle,
A ruler jig comprising: an adhesive roller supported by a blade of the blade portion by a support member and disposed on a ridge portion side of the blade portion.   The ruler jig according to claim 1, further comprising an attachment portion for rotatably attaching the support member in an in-plane direction of the blade. Drawing a ruled line on the battery cell case using the ruled jig according to claim 1,
Unpacking the case along the ruled lines, and removing internal elements from the case.

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