KR20130112773A - Tab lead packing container and tab lead package - Google Patents

Abstract

PURPOSE: A packing container for tab lead is provided to facilitate the packing and unpacking process of tab leads. CONSTITUTION: A packing container for tab lead accommodates a plurality of tab leads (10) in which an insulating resin film (12) is fixed to a part in a longitudinal direction of a tab lead main body (11). An accommodating concave part (5) is formed on the upper side (3a) of the container body. The planar shape of the opening (5c) of the accommodating concave part corresponds to the planar shape of the tab lead. The accommodating concave part has a bottom part on which the lowermost tab lead (10b) is attached, and the lower part is inclined against the upper side of the container main body.

Description

TAB LEAD PACKING CONTAINER AND TAB LEAD PACKAGE}

This application is accompanied by a priority claim of Japanese Patent Application No. 2012-84771, filed April 3, 2012 and Japanese Patent Application No. 2013-34884, filed February 25, 2013, the disclosure content of which is It is what constitutes a part of this application as it is.

TECHNICAL FIELD The present invention relates to a packaging container for receiving a tab lead with an insulated resin film and a tab lead package for use in an electrochemical device (such as a lithium ion secondary battery, a capacitor) and the like.

As an electrochemical device, for example, a lithium ion secondary battery includes a battery element including a laminate of a positive electrode current collector, a negative electrode current collector, and a separator as an electrochemical element. The battery element is accommodated in an outer package formed of a laminate film, and the opening edges corresponding to each other of the outer package are sealed in the outer package by welding each other with heat seals.

The tab lead on the positive electrode side and the negative electrode side in a lithium ion secondary battery is provided with the plate-shaped tab lead main body which has electroconductivity. In a part of the longitudinal direction of this tab lead main body, the strip | belt-shaped insulating resin film for securing the electrical insulation between a tab lead main body and an exterior body extends in the width direction of a tab lead main body, and is the width of a tab lead main body. Both ends of the insulated resin film are stuck by welding etc. in the state which protruded to the width direction both sides of a tab lead main body from the both sides edge of a direction (refer patent documents 1-7).

Conventionally, this type of battery has been mainly used for portable devices such as mobile phones, but recently, it has also been used as a storage battery for electric vehicles (including hybrid cars).

In a battery used for a portable device, the tab lead is wrapped in a tape-shaped tab lead body in a form in which a strip-shaped member of a tab lead in which a plurality of insulating resin films are fixed to the tape-shaped tab lead body in a longitudinal direction is wound in a reel shape. It was stored or transported. Then, a plurality of tab leads were collected from the band members of the tab leads by opening the band members of the tab leads wound in a reel shape at the manufacturing site of the battery and cutting them into rectangles with a predetermined length.

In the battery used for an electric vehicle, the thickness of the tab lead main body of a tab lead became thick because the amount of electric current which flows at the time of charge or discharge becomes large. Therefore, it became difficult to store and transport the strip | belt-shaped member of a tab lead in the form which wound in the reel shape. Therefore, generally, it stores and transports in the state which laminated | stacked the several sheet lead which was cut | disconnected in rectangle previously.

Japanese Unexamined Patent Application Publication No. 10-302756 Japanese Patent Application Laid-Open No. 2010-165481 Japanese Patent Application Laid-Open No. 2010-170979 Japanese Patent Application Laid-Open No. 2010-245000 Japanese Patent Application Laid-Open No. 2006-202577 Japanese Patent No. 3505905 Japanese Patent Laid-Open No. 2011-76861

Here, in order to easily perform the set work when the tab leads are set in the battery assembly apparatus after storage or transportation, it is preferable to store or transport the plurality of tab leads in a state in which they are stacked in the same direction. However, the fixing position of the insulated resin film fixed to the tab lead main body of each tab lead is not necessarily limited to the exact intermediate position of the longitudinal direction of a tab lead main body, but once with respect to the intermediate position of the tab lead main body in the longitudinal direction. It is often a position biased to the negative side. Therefore, when a plurality of tab leads are laminated in the same direction, the insulated resin films adjacent to each other come into contact with each other and the other ends of the tab lead bodies adjacent to each other come into contact with each other, that is, the plurality of tabs As viewed from the side, the lead can be laminated so that the opposite end side (that is, one end side thereof) has a fan shape spreading in the vertical direction with respect to the other end of the tab lead body. Therefore, the plurality of tab leads stacked at the time of storage or transportation are likely to collapse. If it collapses, there is a possibility that the tab lead may be deformed or damaged, and it is necessary to perform a cumbersome work of rebuilding the collapsed tab lead when the tab lead is set in the battery assembly apparatus.

This invention is made | formed in view of the technical background mentioned above, The objective is the packing container for tab leads which can accommodate the several sheets of tab leads laminated | stacked in the same direction with good stability, and a plurality of tab leads are provided in the said container. It is to provide a packed tap lead package.

Other objects and advantages of the present invention will be apparent from the following preferred embodiments.

The present invention provides the following means.

[1] An insulating resin film extends in the width direction of the tab lead body in a part of the longitudinal direction of the tab lead body having conductivity, and both ends of the insulating resin film are formed from both edges of the tab lead body in the width direction of the tab lead body. It is a packing container which accommodates the several sheets of tab lead stuck in the state which protruded in the width direction both sides,

On the upper surface of the container main body, a receiving recess for accommodating from above in a state where a plurality of tab leads are stacked in the same direction as each other is formed,

While the planar shape parallel to the upper surface of the container body of the opening of the accommodation recess is formed into a shape corresponding to the planar shape of the tab lead,

The accommodating recessed container has a bottom face part which the lowest tab lead among the plurality of tab leads accommodated in the accommodating recess part, and the said bottom face part is inclined with respect to the upper surface of a container main body.

[2] The bottom portion of the accommodation recess is inclined with respect to the top surface of the container body such that the top surface of the tab lead body of the uppermost tab lead among the plurality of tab leads accommodated in the accommodation recess is substantially parallel to the top surface of the container body. The packing container for the tab lead of Claim 1.

[3] The above-mentioned item 1 or 2, wherein the take-out operation recess for opening the plurality of tab leads housed in the accommodation recess in the upper surface of the container body is formed by opening the upper surface of the container body and the inner circumferential surface of the accommodation recess. Packing container for tab lead of description.

[4] A take-out operation groove portion for an operation for taking out a plurality of tab leads contained in the receiving recess portion on the upper surface of the container body passes through an upper end portion of the bottom surface portion of the receiving recess portion from the outer circumferential side of the container body and at least an intermediate portion thereof. The packing container for tab lids as described in any one of the said Claims 1-3 formed extending to the edge.

[5] a plurality of accommodation recesses are formed on the upper surface of the container body in a longitudinal direction,

The upper end part of the bottom face part of each accommodating recessed part arrange | positioned in the longitudinal direction of the accommodating recessed part from the outer peripheral side surface of a container main body for the extraction operation groove part for the operation which takes out the several sheet tab lead accommodated in the accommodating recessed part to the upper surface of a container main body, The packing container for tab lid of any one of said 1-4 which is formed extending in the arrangement direction of a some accommodating recessed part so that a middle part and a lower end part may pass sequentially, and a some accommodating recessed part may be connected.

[6] The packaging container for tab lid according to any one of the above items 1 to 5, wherein the inclination angle of the bottom surface portion of the accommodation recess with respect to the upper surface of the container body is set within a range of 5 ° to 40 °.

[7] The packaging container for tab lid according to the item 6, wherein the housing recess is accommodated from above in a state where 10 to 100 tab leads are stacked in the same direction as a plurality of tab leads.

[8] The insulated resin film is fixed to a position biased toward one end with respect to the intermediate position in the longitudinal direction of the tab lead body,

The tab lead for tab lead as described in any one of the said Claims 1-7 laminated | stacked so that the one end side may become the fan shape which spreaded in the up-down direction centering on the other end part of the tab lead main body from the side surface. Packing container.

[9] The insulated resin film is fixed to a position biased toward one end side with respect to the intermediate position in the longitudinal direction of the tab lead body,

The packaging container for tab leads according to the item 5, wherein the plurality of tab leads are stacked so as to form a fan shape having one end side spreading in the vertical direction with respect to the other end portion of the tab lead body as viewed from the side thereof.

[10] The packing container for tap leads according to any one of the above items 1 to 9, wherein the tab lead is used in an electrochemical device.

[11] A tab lead package, wherein a plurality of tab leads are accommodated in a state in which the tab leads are stacked in the same direction as each other in the accommodation recess of the container according to any one of items 1 to 10 above.

The present invention has the following effects. In addition, below, the laminated body formed by laminating | stacking a some sheet | seat tab lead is called "tab lead laminated body."

According to the container of the above [1], the plurality of tab leads are accommodated in the receiving recess from above in a state of being stacked in the same direction. At this time, since the planar shape parallel to the upper surface of the container main body of the opening of the accommodating recess is formed in a shape corresponding to the planar shape of the tab lead, the plurality of tab leads can be accommodated in the accommodating recess as it is. Therefore, the work of accommodating the tab lead can be easily performed.

Moreover, the accommodating recess has a bottom face part which the lowest tab lead contacts among the plurality of tab leads accommodated in the accommodating recess part, and the bottom face part is inclined with respect to the upper surface of the container body. Therefore, when the plurality of tab leads are stacked in the storage recess as they are stacked, the lowest tab lead among these tab leads contacts the bottom surface of the storage recess, and in the vertical direction in the tab lead stack. These tab leads can be accommodated so that the one end side of the spread tab lead main body is not pushed out above the upper surface position of the container main body, whereby a plurality of tab leads can be accommodated with good stability. Moreover, compared with the accommodating recessed part in which a bottom face part is formed in parallel with the upper surface of a container main body, the depth of a accommodating recessed part can be made shallow, and the operation | work of accommodating a tab lead can also be performed easily, and a tab lead is taken out. It can also be performed easily for work.

As a matter of course, the plurality of tab leads are stacked in the same direction and accommodated in the housing recesses, so that the plurality of tab leads taken out from the housing recesses after storage or transportation are aligned in the same direction. Therefore, when setting each tab lead to a predetermined assembly apparatus (for example, the assembly apparatus of an electrochemical device), the set operation can be performed easily.

According to the container of the above [2], the bottom surface of the container recessed portion of the container body is formed so that the upper surface of the tab lead body of the uppermost tab lead among the plurality of tab leads accommodated in the accommodation recessed portion is substantially parallel to the upper surface of the container body. It is inclined with respect to the upper surface. Thereby, a plurality of tab leads can be reliably accommodated with good stability.

According to the container of the above [3], the tab lead taking out operation can be performed more easily by inserting a takeout member or the like into the take-out operation recess when taking out a plurality of tab leads accommodated in the accommodation recess.

According to the container of [4] above, the ejecting operation groove portion extends from the outer peripheral side surface of the container body. Therefore, when taking out a plurality of tab leads, the ejecting member or the like is inserted into the groove from the outer side of the outer circumferential side of the container body, so that the inserting operation into the groove portions such as the extracting member can be easily performed. In addition, since the groove portion is formed extending through the upper end portion of the bottom portion of the accommodation recess portion to at least an intermediate portion of the bottom portion, the intermediate portion of the plurality of tab leads is removed in the thickness direction by the insertion member or the like thus inserted. A plurality of tab leads can be lifted from the recess with good stability. Therefore, the taking out operation of the tab lead can be performed more easily.

According to the container of [5], the insertion operation into the groove portion such as the extraction member can be easily performed for the same reason as in the above [4], and the plurality of tab leads can be lifted from the receiving recess with good stability. have.

The groove portion extends in the arrangement direction of the plurality of storage recesses so as to sequentially pass through the upper end portion, the middle portion, and the lower end portion of each accommodation recess portion. Therefore, a plurality of tab leads accommodated in each accommodation recess can be sequentially taken out by a takeout member or the like inserted into the groove portion. Therefore, the takeout operation of the tab lead can be performed more easily.

According to the container of the above [6], the inclination angle of the bottom surface of the accommodation recessed portion with respect to the upper surface of the container body is set within a range of 5 ° to 40 °, whereby the workability and take-out workability of the tab lead can be improved. .

According to the container of [7], the accommodation recess is accommodated from the tab lead by taking out from the top in a state where 10 to 100 tab leads are stacked in the same direction as a plurality of tab leads. The workability can be improved reliably.

In the above [8] and [9], the insulated resin film is fixed to a position biased toward the one end side with respect to the intermediate position in the longitudinal direction of the tab lead body, and the plurality of tab leads are viewed from the side thereof, It is laminated so that one end side will become a fan shape spreading in the up-down direction centering on the other end part. Even with the plurality of tab leads stacked in this manner, the container according to the above [8] can reliably and easily carry out the tab lid accommodating work.

According to the container of the above [10], the storing operation and the taking out operation can be easily performed for the plurality of tab leads used in the electrochemical device.

According to the tab lead package described in the above item [11], the plurality of tab leads are stacked in the same direction and are accommodated in the housing recesses of the container. Therefore, when a plurality of tab leads are taken out from the receiving recess after storing or transporting the tab lead package, these tab leads are aligned in the same direction. Therefore, when setting each tab lead to a predetermined assembly apparatus (for example, the assembly apparatus of an electrochemical device), the set operation can be performed easily.

1: is a perspective view which shows the packing container for container tabs (container main body) which concerns on the 1st Embodiment of this invention with a tab lead laminated body.
2 is a plan view of the container.
FIG. 3 is a cross-sectional view taken along the line XX in FIG. 2 showing the container together with the tab lead laminate. FIG.
FIG. 4: is sectional drawing corresponding to FIG. 3 which shows the container in the state which accommodated the tab lead laminated body in the accommodation recessed part.
FIG. 5: is a perspective view which shows the container in the state which accommodated the tab lead laminated body in the accommodation recessed part. FIG.
6A is a plan view illustrating a first modification of the container.
6B is a plan view illustrating a second modification of the container.
6C is a plan view illustrating a third modification of the container.
6D is a plan view illustrating a fourth modification of the container.
FIG. 7: is a perspective view which shows the packing container for container tabs (container main body) which concerns on 2nd Embodiment of this invention with a tab lead laminated body. FIG.
8 is a plan view of the container.
FIG. 9A is a sectional view taken along the line XX of FIG. 8 showing the container together with the tab lead laminate. FIG.
9B is a cross-sectional view taken along the line YY in FIG. 8.
9C is a cross-sectional view taken along the line ZZ in FIG. 8.
It is a perspective view which shows the container in the state which accommodated the tab lead laminated body in the accommodation recessed part.
FIG. 11: is sectional drawing corresponding to FIG. 9A which shows the container in the state in which the tab lead laminated body accommodated in the accommodation recessed part is taken out. FIG.

Next, some embodiments of the present invention will be described below with reference to the drawings.

As shown in Figs. 1 to 5, a plurality of tab leads 10 are accommodated in the packing container 1 for tab leads according to the first embodiment of the present invention for storage, transportation or the like. This container 1 includes a container body 2 and a cover body (not shown). This container 1 (detailed container main body 2) consists of a plastic molded article, and in detail, it is shape | molded by heating and compressing resin, such as PET, in a predetermined molding die. The thickness of the container 1 (in detail, the container main body 2) is 0.5-2.0 mm, for example, and the whole of the container main body 2 is formed in the thickness of this range.

The plurality of tab leads 10 housed in the container 1 (in detail, the container main body 2) have the same shape and the same dimension. Each tab lead 10 is used as a tab lead on a positive electrode side or a negative electrode side in a lithium ion secondary battery as an electrochemical device, and has a tab lead body 11 having good conductivity and a band-shaped insulating resin film ( 12).

The tab lead main body 11 is plate-like (detailed flat plate shape), is made of metals, such as aluminum and copper, and the planar shape is square shape (it describes square or rectangle in detail). One of the both ends in the longitudinal direction of the tab lead main body 11 is arrange | positioned in the exterior body of a lithium ion secondary battery, and is electrically connected to the electrical power collector of a battery element (electrochemical element), and the other side is outside the exterior body. It is arranged and electrically connected to external conductors, such as a bus bar.

The thickness of the tab lead main body 11 is 0.1-1 mm, for example, the length is 20-70 mm, for example, and the width is 10-150 mm, for example.

The insulated resin film 12 is for ensuring the electrical insulation between the tab lead main body 11 and the exterior body, and is made of an electrically insulating resin such as polyethylene or polypropylene. And this insulated resin film 12 extends in the width direction of the tab lead main body 11 in the state which covers the periphery in a part of the longitudinal direction of the tab lead main body 11, and of the tab lead main body 11 is carried out. Both end parts 12a and 12a of the insulated resin film 12 are fixed by welding etc. in the state which protruded to the width direction both sides of the tab lead main body 11 from the width direction both edges.

The fixing position with the tab lead main body 11 of the insulated resin film 12 is a position corresponding to the seal part of the exterior body in the tab lead main body 11, In this embodiment, It is a position which is biased toward the one end 11a side with respect to the intermediate position (center position) in the longitudinal direction.

The thickness of the insulated resin film 12 is 0.08-0.4 mm, for example, and the length is slightly longer than the width dimension of the tab lead main body 11, for example, is 12-160 mm, and the width is 5-5-mm, for example. 20 mm.

Here, since the insulated resin film 12 is fixed to a part of the tab lead main body 11 in the longitudinal direction as described above, the tab lead 10 has a plurality of tab leads 10 as shown in FIG. 3. Are laminated in the same direction, the insulating resin films 12 and 12 adjacent to each other come into contact with each other and the other end portions 11b and 11b of the tab lead bodies 11 and 11 adjacent to each other come into contact with each other. . That is, the plurality of tab leads 10 are viewed from the side, and the opposite end 11a side (that is, one end 11a side) is vertically centered on the other end 11b of the tab lead body 11. It can be laminated so as to have a fan shape spread in the direction.

In the container 1 of this 1st Embodiment, the container main body 2 has the upper wall part 3 which has a rectangular upper surface 3a by planar view, and the lower direction from the outer periphery of the upper wall part 3 downward. It has a peripheral wall portion 4 including four sidewalls extending from front to rear and left and right. The inner side of the peripheral wall part 4 becomes a cavity, and the lower surface side of the container main body 2 is opened. 4a is an outer peripheral side surface of the container main body 2, and it is the outer peripheral side surface of the peripheral wall part 4 of the container main body 2 in detail.

The upper surface 3a of the container body 2 (that is, the upper surface 3a of the upper wall portion 3 of the container body 2) is formed in parallel with the lower surface of the container body 2. Therefore, when the container main body 2 is mounted on a predetermined horizontal loading surface (not shown), the upper surface 3a of the container main body 2 will be arrange | positioned horizontally.

On the upper surface 3a of the container body 2, an accommodation recess 5 for accommodating from above in a state where the plurality of tab leads 10 are stacked in the same direction is formed by opening the upper surface 3a. . Although the number of the tab leads 10 accommodated in this accommodating recess 5 is not limited, 10-100 sheets can reliably improve the storage workability and take-out workability of the tab lead 10. It is especially preferable at the point. In the drawings, the number of tab leads 10 is set to four for convenience of explanation, and the thicknesses of the tab lead main body 11 and the insulating resin film 12 are shown as thick.

1 and 2, the planar shape parallel to the upper surface 3a of the container body 2 of the opening 5c of the accommodation recess 5 corresponds to the planar shape of the tab lead 10. It is formed in one shape. Therefore, the accommodating recessed part 5 has the 1st accommodating part 5a which accommodates the tab lead main body 11 of the tab lead 10, and the insulated resin film which protruded from the both sides edge of the tab lead main body 11 in the width direction. It has the 2nd accommodating part 5b, 5b which accommodates both ends 12a and 12a of (12). Moreover, the accommodating recess 5 is formed so that the planar shape of the opening 5c of the accommodating recess 5 may continue in the depth direction of the accommodating recess 5.

In addition, as shown in FIG. 4, the accommodating recess 5 is the lowest tab lead among the plurality of tab leads 10 (that is, the tab lead stack 15) accommodated in the accommodating recess 5. 10B) (In detail, it has the bottom part 6 which the other end part 11b of the tab lead main body 11 of the lowest tab lead 10B, and the insulating resin film 12 contact. As shown in FIGS. 4 and 5, the bottom surface portion 6 is the upper surface of the tab lead body 11 of the tab lead 10A at the highest level among the plurality of tab leads 10 accommodated in the accommodation recess 5. It inclines with respect to the upper surface 3a of the container main body 2 so that 11c may become parallel to the upper surface 3a of the container main body 2. Inclination angle (theta) (refer FIG. 3) of the bottom part 6 with respect to the upper surface 3a of the container main body 2 is the number of sheets of the tab lead 10 laminated | stacked, the thickness of the tab lead main body 11, and insulating resin It is set according to the thickness of the film 12, and the like, but is not limited thereto. When the number of the tab leads 10 accommodated in the accommodation recess 5 is 10 to 100, the tab is in the range of 5 ° to 40 °. It is especially preferable at the point which can reliably improve the reception workability and take-out workability of the lid 10.

In addition, the depth of the accommodating recess 5, that is, the distance from the upper surface 3a of the container body 2 to the bottom face 6 is the highest of the plurality of tab leads 10 accommodated in the accommodating recess 5. The uppermost surface of the insulated resin film 12 of the tab lead 10A is set to be at the same height position or slightly lower position than the upper surface 3a of the container body 2.

In addition, a plurality of tab leads accommodated in the accommodation recesses 5 are provided at portions on both sides in the longitudinal direction of the first accommodation portion 5a of the accommodation recesses 5 on the upper surface 3a of the container body 2. A hole-shaped insertion recess (specifically, an insertion hole) 7 and 7 into which an ejecting member (for example, a manipulator's finger portion) 25 is inserted from above is inserted into the container body 2. Extends downward from the upper surface 3a of the upper surface 3a, and to portions on both sides in the longitudinal direction of the first receiving portion 5a of the upper surface 3a of the container body 2 and the inner peripheral surface of the receiving recess 5. It is formed by opening each. When taking out the tab lead 10 from the accommodating recess 5, the ejection operation | work is performed by inserting the ejection member 25 from upper direction into the insertion recess 7 and 7. As shown in FIG. Therefore, the taking out operation of the tab lead 10 can be performed easily.

In the first embodiment, the insertion recess 7 corresponds to the ejection operation recess for the operation of taking out the plurality of tab leads 10 accommodated in the accommodation recess 5 in the present invention. In the present specification, the ejection member 25 also includes a finger of the ejection worker.

The extraction method of the tab lead 10 is demonstrated in detail as follows. That is, as shown by the dashed-dotted line in FIG. 4, the extraction member 25 is inserted in the both insertion recessed parts 7, and 7 from above, respectively. Then, both of the ends 11a and 11b in the longitudinal direction of the tab lead main body 11 of the plurality of tab leads 10 (tab lead stack 15) are lifted by these ejection members 25. As a result, the plurality of tab leads 10 are collectively taken out from the accommodation recess 5.

In the container 1 of this 1st Embodiment, after accommodating the several tab lead 10 in the accommodating recess 5, for example, the tab lead from the accommodating recess 5 by vibration etc. at the time of transport, etc. In order not to accidentally pop out, or to protect the upper surface of the uppermost tab lead 10A, covering at least the entire upper surface 3a of the container body 2 with a cover (not shown). desirable. As this cover body, the cover which can be covered with the container main body 2 so that the whole upper surface 3a of the container main body 2 may be used, for example is used. Alternatively, the container body 2 may be placed in a bag made of a heat-shrinkable film as a cover, and the container body 2 may be covered with the bag by heating and shrinking the bag. 2) may be put in, and the air of the bag may be sucked out and then sealed with a heat seal or the like.

The container 1 includes the cover body as described above, so that the tab lead 10 does not accidentally protrude from the receiving recess 5 due to vibration during transportation, or the upper surface of the uppermost tab lead 10A. Can protect.

However, according to the container 1 of this 1st Embodiment, the planar shape parallel to the upper surface 3a of the container main body 2 of the opening 5c of the accommodating recess 5 is the tab lead 10 Since it is formed in the shape corresponding to the planar shape of, the accommodating recessed part 5 can be accommodated in the accommodating recessed part 5 as it is, and the tab lead 10 can be accommodated easily. Can be.

Moreover, since the accommodating recess 5 is formed so that the planar shape of the opening 5c of the accommodating recess 5 continues in the depth direction of the accommodating recess 5, the tab lead 10 may be caused by vibration during transportation or the like. ) Can be prevented from moving in the front, rear, left, and right directions on the inner circumferential surface of the receiving recess 5, thereby preventing deformation and scratches of the tab lead 10 due to vibration during transportation or the like.

Moreover, the accommodating recess 5 has the bottom part 6 which the lowest tab lead 10B contacts among the plurality of tab leads 10 accommodated in the accommodating recess 5, and the said bottom part ( 6) is inclined with respect to the upper surface 3a of the container body 2. Therefore, when accommodating in the accommodating recessed part 5 in the state in which the several tab lead 10 was laminated | stacked, the lowest tab part 10B of these tab leads 10 will be the bottom face part of the accommodating recessed part 5. While contacting (6), the one end 11a side of the tab lead main body 11 spread in the vertical direction in the tab lead stack 15 is higher than the position of the upper surface 3a of the container main body 2. These tab leads 10 can be accommodated so as not to be pushed out, whereby a plurality of tab leads 10 can be accommodated with good stability. In addition, the depth of the storage concave portion 5 can be made shallower than that of the storage concave portion in which the bottom surface portion 6 is formed in parallel with the upper surface 3a of the container body 2, whereby the tab lead ( The accommodation operation of 10) can also be easily performed, and the extraction operation of the tab lead 10 can also be easily performed.

Of course, since the plurality of tab leads 10 are stacked in the same direction and are accommodated in the receiving recesses 5, the package leads 20 after the tab lead package 20 is stored or transported. ), The tab lead 10 is aligned in the same direction when the plurality of tab leads 10 is taken out from the receiving recess 5. Therefore, when setting each tab lead 10 to the assembly apparatus of a lithium ion secondary battery, the set operation can be performed easily.

Moreover, the bottom face part 6 of the accommodating recessed part 5 is the upper surface 11c of the tab lead main body 11 of the tab lead 10A of the uppermost of the several tab lead 10 accommodated in the accommodating recessed part 5. ) Is inclined with respect to the upper surface 3a of the container body 2 so as to be parallel to the upper surface 3a of the container body 2, so that the plurality of tab leads 10 can be reliably and stably received.

Moreover, since the container main body 2 is formed from the plastic molded article, the container main body 2 can be manufactured cheaply and easily.

As for the container 1 of the said 1st embodiment, although the one receiving recessed part 5 was formed in the upper surface 3a of the container main body 2, the container which concerns on this invention is not limited to being such a container, In addition, the some receiving recessed part 5 may be provided in the upper surface 3a of the container main body 2. As shown in FIG.

6A to 6D are diagrams illustrating first to fourth modifications of the container according to the first embodiment, respectively, and in each container 1, a plurality of accommodations are provided on the upper surface 3a of the container body 2. As the recesses 5, for example, four receiving recesses 5 are formed. The difference of these containers 1 is that the directions of the four storage recesses 5 differ by the container main bodies 2.

7-11 is a figure explaining the 2nd Embodiment of this invention. In these figures, the same code | symbol is attached | subjected to the same element as the said 1st Embodiment. This 2nd Embodiment is demonstrated below centering on difference with 1st Embodiment.

In the container 1 of this 2nd Embodiment, as shown in FIGS. 7-10, the number of the accommodation recesses 5 is four in total. Of these accommodating recesses 5, the accommodating recesses 5 and 5 are formed on the upper surface 3a of the container body 2 in a line in the longitudinal direction of the accommodating recess 5. Similarly with respect to the remaining two accommodating recesses 5 and 5, the upper surface 3a of the container main body 2 is also located in the longitudinal direction of the accommodating recess 5 and the two accommodating recesses 5 and 5 are provided. It is formed by arranging in parallel with the arrangement direction. The direction of these accommodating recesses 5 is the same in the arrangement direction of the accommodating recesses 5. In addition, the longitudinal direction of the accommodating recess 5 means the longitudinal direction of the tab lead main body 11 of the tab lead 10 accommodated in the accommodating recess 5.

In addition, in the two storage recesses 5 and 5 arranged in a line, the ejection operation groove 9 for the operation of taking out the plurality of tab leads 10 accommodated in the storage recess 5 is a container. From the outer peripheral side surface 4a of the container main body 2 to the upper surface 3a of the main body 2, the upper end part 6a, the middle part 6b, and the lower end part 6 of the bottom face part 6 of each accommodating recessed part 5 It extends in the arrangement direction of the two receiving recesses 5 and 5 so as to pass through 6c) sequentially. In addition, this groove portion 9 extends straight so as to connect two accommodation recesses 5 and 5 arranged in a row.

Moreover, since the groove part 9 extends from the outer peripheral side surface 4a of the container main body 2, the opening 9a for inlet opening of the groove part 9 is formed in the outer peripheral side surface 4a of the container main body 2.

In the second embodiment, as shown in FIG. 11, at least one finger 25a of the plurality of fingers 25a, 25b of the ejection worker is inserted into the groove 9 as the ejection member 25.

The extraction method of the tab lead 10 in the container 1 of this 2nd Embodiment is demonstrated as follows. That is, as shown in FIG. 11, one finger (for example, forefinger) 25a in the groove portion 9 from the outside of the outer circumferential side surface 4a of the container body 2 through the inlet opening 9a. Insert Then, the middle portion of the plurality of tab leads 10 is inserted in the thickness direction by the inserted finger 25a and the other finger (for example, the thumb) 25b disposed above the uppermost tab lead 10A. Lift it up. As a result, the plurality of tab leads 10 are collectively taken out from the accommodation recess 5. This take-out operation is performed sequentially with respect to all the receiving recesses 5 along the grooves 9.

In the container 1 of this 2nd embodiment, the take-out operation groove part 9 extends from the outer peripheral side surface 4a of the container main body 2. As shown in FIG. Accordingly, when the plurality of tab leads 10 is taken out, the grooves 9 of the fingers 25a are inserted by inserting the fingers 25a into the grooves 9 from the outside of the outer circumferential side surface 4a of the container body 2. Can be easily inserted. In addition, the groove portion 9 passes through the upper end portion 6a of the bottom portion 6 of the receiving recess 5 and extends to at least the middle portion 6b of the bottom portion 6. Therefore, the plurality of tab leads from the receiving concave portion 5 is lifted by the intermediate portions of the plurality of tab leads 10 inserted in the thickness direction by the fingers 25a and the other fingers 25b inserted in this way. (10) can be collectively lifted up with stability. Therefore, the taking out operation of the tab lead 10 can be performed more easily.

And the groove part 9 passes through the upper end part 6a, the middle part 6b, and the lower end part 6c of the bottom part 6 of each accommodating recess 5 in order, and also passes through the some accommodating recess 5. It extends in the arrangement direction of the some receiving recessed part 5 so that it may connect. Therefore, the several tab lead 10 accommodated in each accommodation recessed part 5 can be taken out one by one by the finger 25a inserted in the groove part 9. Therefore, the taking out operation of the tab lead 10 can be performed more easily.

Here, in this 2nd Embodiment, although the number of the accommodating recesses 5 arranged in the longitudinal direction of the accommodating recess 5 of the container main body 2 is two, in this invention, it is not limited to this, Others For example, three or more may be sufficient.

In addition, this invention is not limited to the said 1st and 2nd embodiment and the said modification, It can variously change in the range which does not deviate from the summary of this invention.

In addition, you may comprise this invention combining two or more from all the technical matters applied to the said 1st and 2nd embodiment and the said modification.

Moreover, the container of the said embodiment is a tab lead used for an electrochemical device, for accommodating the tab lead used for a lithium ion secondary battery, In this invention, the tab lead to be accommodated in a container is for a lithium ion secondary battery. It is not limited to being, but what is used elsewhere, for example in an electric double layer capacitor may be sufficient.

The terminology and terminology used herein is for the purpose of description and not of limitation, and the features shown and described herein do not exclude any equivalents and are within the claimed scope of the invention. It should be recognized that various modifications of the system are allowed.

The invention may be embodied in many different forms, which should be considered as providing examples of the principles of the invention, which examples are the preferred embodiments described and / or illustrated herein. Many illustrated embodiments are described herein based on the understanding that they are not intended to be limited to the forms.

While some illustrative embodiments of the present invention have been described herein, the present invention is not limited to the various preferred embodiments described herein, and equivalent elements, modifications, and the like may be recognized by those skilled in the art based on this disclosure. And all embodiments having deletions, combinations (eg, combinations of features over various embodiments), improvements, and / or changes. The limitations of the claims should be interpreted broadly based on the terms used in the claims, and should not be limited to the embodiments described herein or in the procedures herein, and such embodiments should be interpreted non-exclusively.

The present invention is applicable to a packaging container for receiving tab leads used for electrochemical devices (e.g., lithium ion secondary batteries, electric double layer capacitors) and the like for storage or transportation.

1: container
2:
3a: upper surface of the container body
4a: outer peripheral side of the container body
5: receiving recess
5c: opening of receiving recess
6: bottom part of accommodation recess
6a: upper part of bottom part
6b: middle part of bottom part
6c: lower part of bottom part
7: insertion recess (takeout recess)
9: take-out operation groove
10: tap lead
10A: Top Tab Lead
10B: lowest tapped lead
11: tap lead body
12: insulated resin film
15: Tab Lead Laminate
20: tap lead package
25: take-out member

Claims (11)

The insulating resin film extends in the width direction of the tab lead body in a part of the longitudinal direction of the tab lead body having conductivity, and both ends of the insulated resin film are provided in the width direction both sides of the tab lead body from both edges in the width direction of the tab lead body. It is a packing container which accommodates the several sheet | seat tab lead stuck in the state which protruded,
On the upper surface of the container main body, a receiving recess for accommodating from above in a state where a plurality of tab leads are stacked in the same direction as each other is formed,
While the planar shape parallel to the upper surface of the container body of the opening of the accommodation recess is formed into a shape corresponding to the planar shape of the tab lead,
The accommodating recessed container has a bottom face part in which the lowest tab lead among the plurality of tab leads accommodated in the accommodating recess part, and the bottom face part is inclined with respect to the upper surface of the container main body. The method of claim 1,
The bottom surface of the receiving recess is a package for tab lead inclined with respect to the upper surface of the container body so that the upper surface of the tab lead body of the uppermost tab lead among the plurality of tab leads accommodated in the receiving recess is substantially parallel to the upper surface of the container body. Vessel. 3. The method according to claim 1 or 2,
A packaging container for tab leads, wherein a take-out operation recess for opening the plurality of tab leads contained in the housing recess on the upper surface of the container body is formed by opening the upper surface of the container body and the inner circumferential surface of the housing recess. 3. The method according to claim 1 or 2,
The take-out operation groove part for the operation which takes out the several sheet tab lead accommodated in the accommodating recessed part to the upper surface of a container main body extends through the upper end of the bottom face part of the accommodating recessed part from the outer peripheral side of a container main body, and to at least intermediate part of a bottom face part, A packing container for formed tab leads. 3. The method according to claim 1 or 2,
On the upper surface of the container body, a plurality of accommodation recesses are formed by arranging in the longitudinal direction of the accommodation recesses,
The take-out operation groove part for the operation which takes out the several sheet | seat tab lead accommodated in the accommodating recess to the upper surface of a container main body passes through the upper end part, the middle part, and the lower end part of the bottom face part of each accommodating recess part sequentially from the outer peripheral side of a container main body, The packing container for tab leads formed extending in the arrangement direction of the some receiving recessed part so that the some receiving recessed part may be connected. 3. The method according to claim 1 or 2,
The inclination angle of the bottom face part of the accommodating recessed part with respect to the upper surface of a container main body is a packing container for tab leads set in the range of 5 degrees-40 degrees. The method according to claim 6,
A packaging container for a tab lead, wherein the housing recess is accommodated from above in a state where 10 to 100 tab leads are stacked in the same direction as a plurality of tab leads. 3. The method according to claim 1 or 2,
The insulated resin film is fixed to the position biased toward the one end side with respect to the intermediate position in the longitudinal direction of the tab lead body,
A packaging container for tab leads, wherein a plurality of tab leads are stacked so as to form a fan shape with one end side spreading in the vertical direction with respect to the other end portion of the tab lead body as viewed from the side. The method of claim 5,
The insulated resin film is fixed to the position biased toward the one end side with respect to the intermediate position in the longitudinal direction of the tab lead body,
A packaging container for tab leads, wherein a plurality of tab leads are stacked so as to form a fan shape with one end side spreading in the vertical direction with respect to the other end portion of the tab lead body as viewed from the side. 3. The method according to claim 1 or 2,
A packing container for a tab lead, wherein the tab lead is used in an electrochemical device. The tab lead packing product is accommodated in the state in which the several tab lead was laminated | stacked in the same direction mutually in the accommodating recessed part of the packing container of Claim 1 or 2.

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