JP2011246131A - Battery packaging - Google Patents

Abstract

The present invention provides a packaging body configured to prevent movement of a battery even when an impact is applied when the battery is transported.
A battery packaging body (1) includes a flat plate-like main body that covers a flat battery (2) having a bulging portion (2a) bulging in a thickness direction from the bulging portion (2a) side. (10) An opening (11) is formed in the main body (10) so that the bulging portion (2a) of the battery (2) is positioned inward.
[Selection] Figure 1

Description

  The present invention relates to a battery package used when transporting a battery.

  Conventionally, a battery package used for protecting a battery when the battery is conveyed is known. In such a battery packaging body, for example, as disclosed in Patent Document 1, a storage box for storing a battery and a partition plate disposed between the batteries are provided.

JP 2010-9825 A

  By the way, when the battery is thin and flat, if a strong impact is applied to the storage box during transportation, the battery may move within the storage box even if a partition plate, a spacer, or the like is inserted into the storage box. is there. Then, a part of the battery may be directly subjected to a strong impact and deformed.

  An object of the present invention is to obtain a package having a configuration capable of preventing movement of a battery even when an impact is applied when the battery is conveyed.

  A battery package according to an embodiment of the present invention includes a flat plate-like main body that covers a flat battery having a bulging portion bulging in a thickness direction from the bulging portion side. Is formed with an opening in which the bulging portion of the battery is positioned inward (first configuration).

  With this configuration, in the flat battery having the bulging portion bulging in the thickness direction, the bulging portion is positioned in the opening of the flat plate-like main body, so the bulging portion of the battery is the opening of the main body. It gets caught in the peripheral part of the. That is, since the battery is held at the peripheral portion of the opening in the main body of the battery packaging body, the battery is displaced from the battery packaging body even if the battery packaging body receives a strong impact during transportation. Can be prevented. Therefore, it is possible to prevent the battery from being deformed during conveyance.

  In the first configuration, it is preferable that the battery further includes a holding portion configured to be engageable with an outer peripheral edge portion of the battery and holding the battery with respect to the main body portion (second configuration). .

  Thereby, a battery can be hold | maintained to this main-body part also except the peripheral part of the opening part of a main-body part. Therefore, even when a strong impact is applied to the battery packaging during transportation, it is possible to prevent the battery from being directly displaced by being displaced from the main body.

  In the second configuration, it is preferable that the battery further includes a flat plate portion that sandwiches the battery with the main body portion, and the holding portion is provided on at least one of the main body portion and the flat plate portion. 3 configuration).

  By carrying out like this, since both surfaces of a flat battery can be pinched | interposed with a packing body, both surfaces of this battery can be protected. Moreover, it is possible to prevent the battery from shifting with respect to the main body portion and the flat plate portion by providing the holding portion on at least one of the main body portion and the flat plate portion. In the case where the holding portion is provided on the flat plate portion, the strength of the holding portion is not affected by the opening of the main body portion, so that the battery can be more reliably held by the holding portion.

  In the second or third configuration, the battery has a plurality of external terminals extending in the same direction from positions separated from each other to the outside of the battery, and the holding portion connects the battery to the plurality of external terminals. It is preferable to be provided so as to be held at a position between them (fourth configuration).

  Thereby, even if an impact is applied to the battery packaging body during the transportation of the battery, it is possible to prevent the impact from being directly applied to the external terminal that is easily deformed. That is, by providing the holding portion so as to hold the battery between the plurality of external terminals, it is possible to more reliably prevent the external terminals from moving outward from the battery packing body. Thereby, it can prevent more reliably that an external terminal deform | transforms by the impact added to the package for batteries during conveyance of a battery.

  In any one of the first to third configurations, the main body portion is formed with a notch extending from the outer peripheral side toward the opening, and the columnar shape engages with the notch. It is preferable to further include a member (fifth configuration).

  Thus, the movement of the battery in the direction in which the notch is formed is suppressed by the columnar member engaged with the notch of the main body. Therefore, even when an impact is applied to the battery package during the transportation of the battery, the movement of the battery is suppressed by the columnar member in the notch, and the impact can be prevented from being directly applied to the battery.

  In the fifth configuration, the battery has a plurality of external terminals extending in the same direction from positions separated from each other to the outside of the battery, and the notch portion is formed by the plurality of external terminals in the main body portion. (6th structure) It is preferable to form in the position corresponding between.

  Thereby, even if an impact is applied to the battery packaging body during the transportation of the battery, it is possible to suppress the movement of the external terminals of the battery to the outside of the battery packaging body. Therefore, with the above-described configuration, it is possible to prevent the external terminal of the battery from being deformed by being directly impacted.

  In the fifth or sixth configuration, the battery further includes a flat plate portion that sandwiches the battery with the main body portion, and the flat plate portion also includes the battery in a state of sandwiching the battery with the main body portion. It is preferable that the flat plate notch part with which a columnar member can engage is formed (7th structure).

  Thereby, also in the structure which provided the flat plate part so that a battery might be pinched | interposed between main body parts, the movement of the battery in the battery packaging body can be prevented by the columnar member.

  In the first configuration, it is preferable to further include a flat plate portion that sandwiches the battery with the main body portion (eighth configuration). Thereby, both surfaces of the battery can be protected. In particular, it is preferable that the flat plate portion is connected to the main body portion at an end thereof (a ninth configuration). By carrying out like this, a main-body part and a flat plate part can be arrange | positioned easily with respect to a battery. That is, the workability at the time of packing a battery with the battery packing body can be improved.

  In any one of the first to ninth configurations, it is preferable that the thickness of the main body is larger than the bulging height of the bulging portion of the battery (tenth configuration). Thereby, the bulging part of a battery can be hold | maintained more reliably by the peripheral part of the opening part of a main-body part. Therefore, with the above-described configuration, even when an impact is applied to the battery packaging body during the transportation of the battery, the battery can be more reliably prevented from moving with respect to the main body.

  According to the battery packing body according to the embodiment of the present invention, the flat body portion covering the flat battery is provided with an opening for positioning the bulging portion of the battery. Thereby, even when an impact is applied to the battery packaging body during the transportation of the battery, the battery can be held by the peripheral edge portion of the opening of the main body, and the impact can be prevented from being directly applied to the battery. In particular, by making the thickness of the main body portion larger than the bulging height of the bulging portion of the battery, the battery can be more reliably held at the peripheral portion of the opening of the main body portion.

  In addition, the battery can be moved within the battery packaging by holding the battery with respect to the main body by the holding section, or by providing a notch in the main body and engaging the columnar member with the notch. Can be more reliably suppressed. Moreover, by forming these holding portions and notches between the plurality of external terminals, it is possible to prevent the external terminals from moving and deforming with respect to the battery packaging body during the transportation of the battery.

  Furthermore, both surfaces of the battery can be protected by providing a flat plate part that sandwiches the battery with the main body part.

FIG. 1 is a perspective view showing a state in which a battery is packed in the battery packing body according to the first embodiment. FIG. 2 is a perspective view illustrating a schematic configuration of the battery packing body according to the first embodiment. FIG. 3 is a perspective view showing a schematic configuration of the battery. 4 is a cross-sectional view taken along line IV-IV in FIG. FIG. 5 is a perspective view showing a state in which the battery is arranged in the battery packing body. 6 is a cross-sectional view taken along line VI-VI in FIG. FIG. 7 is a perspective view illustrating a state in which a battery is packed in the battery packing body according to the second embodiment. FIG. 8 is a perspective view illustrating a schematic configuration of the battery packing body according to the second embodiment.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The same or corresponding parts in the drawings are denoted by the same reference numerals and description thereof will not be repeated. In addition, the dimension of the structural member in each figure does not represent the dimension of an actual structural member, the dimension ratio of each structural member, etc. faithfully.

[Embodiment 1]
FIG. 1 is a diagram showing a schematic configuration of a battery packing body 1 according to an embodiment of the present invention. The battery packing body 1 is used for packing the battery 2 when the flat battery 2 is conveyed. As shown in FIG. 1, the battery packing body 1 is formed by bending a plate-like member into two so as to sandwich a flat battery 2 therebetween.

  Specifically, the battery packing body 1 has a main body portion 10 and a flat plate portion 20 that are formed by bending a plate-like member into two. The main body 10 and the flat plate 20 are formed in a substantially rectangular shape having substantially the same size. A flat battery 2 is sandwiched between the main body 10 and the flat plate 20. The main body 10 and the flat plate portion 20 have such an area that covers the battery 2 with the flat battery 2 sandwiched between them. The battery packing body 1 is made of a flat cushioning material such as cardboard, for example.

  The battery packaging body 1 is formed such that the thicknesses of the main body portion 10 and the flat plate portion 20 are equal, and the thickness t thereof is thicker than the bulging height T of the bulging portion 2a of the battery 2 as described later. (See FIG. 6).

  A rectangular opening 11 is formed in the main body 10. The opening 11 is formed in a size such that a later-described bulge 2a of the battery 2 can be positioned. Thus, as described above, the bulged portion 2a of the battery 2 is an opening of the main body portion 10 in a state where the flat battery 2 is sandwiched between the main body portion 10 and the flat plate portion 20 of the battery packing body 1. It is located in the part 11 (refer FIG. 1). As shown in FIG. 1, the opening 11 is positioned such that the battery 2 does not protrude outside the main body 10 and the flat plate 20 with the bulging portion 2 a of the battery 2 positioned inside. Is provided. In other words, the opening 11 is provided so as to be biased toward one end in the longitudinal direction of the substantially rectangular main body 10 corresponding to the shape of the battery 2 shown in FIG.

  In the flat plate portion 20, the battery 2 is sandwiched between the flat plate portion 20 and the main body portion 10, and the outer peripheral portion of the battery 2 and a positive electrode external terminal 37 and a negative electrode external terminal 38 (to be described later) of the battery 2. A substantially rectangular holding portion 21 is formed between them when viewed from a direction orthogonal to the mounting surface 20 a of the flat plate portion 20. The holding portion 21 is formed by cutting a flat plate portion 20 and bending a part of the flat plate portion 20 surrounded by the cut to the main body portion 10 side. The holding unit 21 prevents the battery 2 from moving toward the positive external terminal 37 and the negative external terminal 38 in a state where the battery 2 is sandwiched between the flat plate part 20 and the main body part 10. The portion on the 2 side is bent toward the main body 10 side. That is, the holding part 21 is provided on the other end part side where the opening part 11 of the main body part 10 is not located in the state where the main body part 10 is overlapped on the flat plate part 20 among both longitudinal ends of the flat plate part 20. Yes. Further, the holding portion 21 is formed by a notch provided in the flat plate portion 20 in a substantially C shape so that only a portion close to the other end in the longitudinal direction of the flat plate portion 20 is connected to the flat plate portion 20. By forming the holding portion 21 in the flat plate portion 20 as described above, the hole portion 22 is formed in the flat plate portion 20.

  The holding portion 21 as described above may be provided on the other side of the substantially rectangular battery 2 or may be provided on each of the four sides of the battery 2. Further, the holding portion 21 may be formed on the main body portion 10. The shape and dimensions of the holding portion are appropriately determined in consideration of the shape, workability, etc. of the battery 2.

  Next, the configuration of the battery 2 will be briefly described with reference to FIGS. 3 and 4. The battery 2 includes a laminate 31 in which sheet-like positive electrodes 32 and negative electrodes 33 are alternately laminated with separators 34 interposed therebetween, a laminate film outer package 36 that covers the laminate 31, a positive electrode 32 of the laminate 31, and A positive external terminal 37 and a negative external terminal 38 (external terminal) connected to the negative electrode 33 are provided. That is, the battery 2 is a flat laminate type battery in which a laminate 31 as an electrode body is covered with a laminate film outer package 36.

  The positive electrode 32 is formed by applying a paste containing a positive electrode mixture on a metal foil. Each positive electrode 32 is connected to a positive electrode external terminal 37 by a positive electrode lead 35.

  The negative electrode 33 is formed by applying a paste containing a negative electrode mixture on a metal foil. Although not particularly illustrated, each negative electrode 33 is also connected to the negative external terminal 38 by a negative electrode lead, like the positive electrode 32. That is, FIG. 4 shows a configuration in which the positive electrode 32 is connected to the positive electrode external terminal 37 by the positive electrode lead 35. Similarly, the negative electrode 33 is also connected to the negative electrode external terminal 38 by the negative electrode lead.

  As shown in FIG. 4, the positive external terminal 37 is made of a single metal plate. The thickness of the positive electrode external terminal 37 is preferably approximately 0.1 mm to 0.3 mm. The surface of the positive electrode external terminal 37 may be coated with various kinds of surfaces for the purpose of improving the adhesion with a different metal plating or an adhesive layer 37a described later. The negative external terminal 38 has the same configuration as the positive external terminal 37. One end side of the positive electrode external terminal 37 and the negative electrode external terminal 38 is sandwiched by the laminate film exterior body 36 and integrated with the laminate film exterior body 36, while the other end side faces the outside of the battery 2. It protrudes. That is, the positive electrode external terminal 37 and the negative electrode external terminal 38 protrude outward in the same direction from the battery 2 at positions separated from each other.

  The separator 34 is formed of, for example, polyethylene, polypropylene, a fusion of polyethylene and polypropylene, a porous film made of polyethylene terephthalate or polybutylene terephthalate, or a nonwoven fabric made of cellulose. The separator 34 has a Gurley value of 600 (s / 100 ml) or less, a thickness of 5 to 50 μm, a porosity of 30% or more, and 80% as measured by a method defined in JIS P 8117. It is preferable that: In particular, the air permeability is preferably 300 (s / 100 ml) or less, the thickness is 30 μm or less, and the porosity is 30% or more and 70% or less.

  The laminate film outer package 36 is made of a material in which one surface side of an aluminum metal foil is covered with nylon and the other surface side is covered with polypropylene. That is, the laminate film outer package 36 is made of a material obtained by laminating aluminum with nylon and polypropylene. Thereby, the laminate film exterior body 36 is mutually adhere | attached by applying a pressure, heating in the state which laminated | stacked the laminate film exterior bodies 36. FIG. The metal foil is not limited to aluminum and may be formed of other metal materials.

  The laminate film outer package 36 of the present embodiment is formed in a rectangular shape. In a state where the laminate 31 is wrapped by the laminate film outer package 36, the outer peripheral sides of the laminate film outer package 36 are bonded to each other, whereby the battery 2 having the configuration shown in FIG. 3 is obtained. A sealing portion 2 b of the battery 2 is formed by the adhesion portion between the outer peripheral sides of the laminate film outer package 36. That is, the seal portion 2 b is formed on three sides of the bulging portion 2 a formed by covering the laminated body 31 with the laminate film exterior body 36.

  Here, adhesive layers 37a and 38a are respectively provided between the laminate film outer package 36 and the positive electrode external terminal 37 and the negative electrode external terminal 38 that partially protrude outwardly. By providing these adhesive layers 37 a and 38 a, the laminate film outer package 36, the positive external terminal 37 and the negative external terminal 38 can be firmly bonded to each other.

  In the battery 2 having the above-described configuration, as shown in FIG. 4, a gentle slope 2 c is formed on the positive electrode external terminal 37 and negative electrode external terminal 38 side of the bulging portion 2 a as compared with other portions. This is because the separator 34 protrudes from the positive electrode 32 and the negative electrode 33 on the positive electrode external terminal 37 and negative electrode external terminal 38 side of the laminate 31, and a positive electrode lead 35 and a negative electrode lead (not shown) are arranged. Therefore, the laminate film outer package 36 is inclined without being along the side surface of the laminate 31. Since the battery 2 has such a slope 2c, when the battery 2 is sandwiched between the main body portion 10 and the flat plate portion 20, the battery 2 moves toward the positive electrode external terminal 37 and the negative electrode external terminal 38 side. It becomes easy. That is, when the battery 2 is arranged so that the bulging part 2a is positioned in the opening part 11 of the main body part 10, the slope 2c formed on the positive electrode external terminal 37 side and the negative electrode external terminal 38 side of the battery 2 The bulging portion 2 a of the battery 2 is less likely to be caught by the peripheral edge portion of the opening portion 11 of the main body portion 10. Thereby, when the battery packaging body 1 receives an impact during transportation of the battery 2, the positive electrode external terminal 37 and the negative electrode external terminal 38 side of the bulging portion 2 a enters the space between the main body 10 and the flat plate portion 20. It becomes easy.

  In contrast, in the case of the present embodiment, when the battery 2 is placed on the placement surface 20a of the flat plate portion 20 of the battery packing body 1, as shown in FIG. Can be engaged with the seal portion 2 b between the positive electrode external terminal 37 and the negative electrode external terminal 38 in the battery 2. Thereby, even if an impact is applied to the battery packaging body 1 in a state where the battery 2 is packed, the battery 2 is in a direction in which the positive electrode external terminal 37 and the negative electrode external terminal 38 protrude from the flat plate portion 20 (upward in FIG. 5). The movement can be prevented by the engaging portion 21. Accordingly, it is possible to prevent the positive electrode external terminal 37 and the negative electrode external terminal 38 from being damaged due to the movement of the battery 2 in the battery packing body 1 when the battery 2 is transported.

  And the battery 2 is accommodated in the packaging box for conveyance which is not shown in figure in the state covered with the package 1 for batteries like FIG. At this time, it is preferable to fix the main body part 10 and the flat plate part 20 with a tape or the like so that the main body part 10 and the flat plate part 20 of the battery packing body 1 are not separated from each other. The batteries 2 packed by the battery packing body 1 are stored in a packing box in a state of being arranged in the thickness direction.

  Here, as described above, the battery packaging body 1 has a thickness t larger than the bulging height T of the bulging portion 2a of the battery 2 (see FIG. 6). Thereby, the bulging part 2 a of the battery 2 positioned in the opening part 11 of the main body part 10 is positioned inward of the main body part 10 and does not protrude from the outer surface of the main body part 10. Therefore, it can prevent that the bulging part 2a of the battery 2 contacts with another flat member, and is rubbed or receives a direct impact. In addition, the bulging height T of the bulging portion 2a is a height from the seal portion 2b of the battery 2 to the bulging side end surface of the bulging portion 2a.

  In particular, the thickness of the main body 10 is preferably 1.3T or more and 2T or less. If it is this range, it can prevent that the thickness of the battery packaging body 1 becomes too thick, preventing the bulging part 2a of the battery 2 protruding from the main-body part 10 more reliably. That is, if the thickness of the battery packaging body 1 becomes too thick, the inner cavity becomes larger in the case of cardboard, and the strength of the peripheral portion of the opening 11 that engages with the bulging portion 2a of the battery 2 decreases. At the same time, since the number of batteries 2 that can be stored in the packaging box is reduced, the batteries 2 cannot be transported efficiently. On the other hand, by making the thickness of the main body 10 within the above-described range, the bulging portion 2a of the battery 2 can be reliably engaged with the peripheral portion of the opening 11 and more in the packing box. The battery 2 can be stored.

(Drop test)
In order to confirm the effect of providing the opening 11 in which the bulging portion 2a of the battery 2 is engaged with the battery packing body as in the present embodiment, a plurality of batteries are accommodated in the packing box as follows. A six-sided drop test was conducted. In this six-sided drop test, the packing box is placed on a hard wooden board from a height of 90 cm by changing the surface located on the lower side of the packing box so that an impact is applied to each of the six faces of the packing box. Drop it.

  As Examples 1 and 2 and Comparative Examples 1 and 2 used for the six-sided drop test, boxes having the following configurations were prepared.

  As Example 1, the battery 2 was packed by a packing body having only the main body 10. In other words, a packing body composed only of the main body portion 10 was attached to the battery 2 so that the bulging portion 2 a was positioned in the opening portion 11. Twenty-five batteries 2 packed in this way were packed in a packing box in the thickness direction. The weight of the battery 2 in Example 1 was about 200 g per piece.

  As Example 2, the battery 2 was sandwiched between two packaging bodies having only the main body 10. Also in Example 2, 25 batteries 2 were packed side by side in the thickness direction in the packing box while sandwiching the packing body therebetween. The weight of the battery 2 in Example 2 was about 300 g per piece.

  As Comparative Example 1, a flat packaging body in which the opening 11 was not formed was inserted between the battery 2 and the battery 2. And 25 batteries 2 were packed side by side in the thickness direction while sandwiching the packing body in the packing box. In addition, the weight of the battery 2 in the comparative example 1 was about 200 g per piece.

  As Comparative Example 2, 25 batteries 2 were arranged side by side in the thickness direction in a packing box without inserting anything between the batteries 2 and 2. The weight of the battery 2 in Comparative Example 2 was 200 g per piece.

  In any of the examples and comparative examples, the packing body and the packing box were formed of cardboard.

The test results are shown in Table 1. Table 1 shows the number of breaks, damages, etc. that occurred in the battery 2 after the six-sided drop test as described above.

  As can be seen from Table 1, there are many cases where the package is not inserted between the battery 2 and the battery 2 (Comparative Example 2) or when the opening 11 is not formed in the package (Comparative Example 1). The battery 2 is damaged. On the other hand, by providing the opening 11 in the package and engaging the bulging portion 2a of the battery 2 in the opening 11, the number of the damaged batteries 2 becomes zero. Thereby, it can be seen that by providing the opening 11 in the package, even when the package is subjected to an impact when the battery 2 is transported, the battery 2 is difficult to move relative to the package. Therefore, by providing the opening 11 in the package, it is possible to prevent the battery 2 from receiving an impact directly.

(Effect of Embodiment 1)
In the present embodiment, an opening 11 is provided in the flat body portion 10 of the battery packaging body 1 corresponding to the bulging portion 2 a of the flat battery 2. Thereby, when the main body 10 covers the bulging portion 2 a side of the battery 2, the bulging portion 2 a is positioned in the opening 11. Therefore, since the bulging portion 2a of the battery 2 is engaged with the opening 11 of the main body portion 10 of the battery packaging body 1, even if an impact is applied to the battery packaging body 1 when the battery 2 is transported, the battery 2 Can be prevented from moving. Therefore, the battery 2 can be prevented from being damaged when the battery 2 is transported.

  Moreover, since the battery packaging body 1 includes the main body portion 10 and the flat plate portion 20 so as to sandwich the battery 2 from both surfaces, both surfaces of the battery 2 can be protected. In addition, since the main body 10 and the flat plate portion 20 are formed by bending a single plate member, the battery packaging body 1 can be easily formed, and the battery 2 is interposed between the main body portion 10 and the flat plate portion 20. Can be easily sandwiched.

  Furthermore, in this embodiment, since the holding part 21 for holding the battery 2 is formed in the flat plate part 20, even if a strong impact is applied to the battery packing body 1 when the battery 2 is transported, the battery 2 is It can prevent more reliably that it moves with respect to the package body 1 for batteries. In addition, the holding unit 21 holds the sealing part 2b of the battery 2 between the positive external terminal 37 and the negative external terminal 38 of the battery 2 in a state where the battery 2 is arranged on the mounting surface 20a of the flat plate part 20. Since it is provided so as to hold, the positive electrode external terminal 37 and the negative electrode external terminal 38 can be more reliably prevented from protruding from the flat plate portion 20. Therefore, even when the battery packaging body 1 receives an impact during transportation of the battery 2, it is possible to more reliably prevent the positive electrode external terminal 37 and the negative electrode external terminal 38 from being damaged.

[Embodiment 2]
7 and 8 show a schematic configuration of the battery packing body 41 according to the second embodiment. The configuration of the second embodiment is different from that of the first embodiment in that notched portions 52 and 61 are provided instead of the holding portions and the columnar member 70 is disposed in the notched portions 52 and 61. In the second embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and only different parts will be described below.

  As shown in FIGS. 7 and 8, the battery packaging body 41 is formed by bending a plate-like member into two as in the first embodiment. That is, the battery packaging body 41 includes a main body portion 50 having a substantially rectangular opening 51 and a flat plate portion 60. Between the main body 50 and the flat plate portion 60, the battery 2 is arranged so that the bulging portion 2 a of the battery 2 is positioned in the opening 51.

  The main body portion 50 and the flat plate portion 60 have notches 52 and 61 so as to be positioned between the positive electrode external terminal 37 and the negative electrode external terminal 38 of the battery 2 with the battery 2 sandwiched therebetween. Each is provided. These notches 52 and 61 are formed in a substantially rectangular shape.

  As shown in FIG. 7, with the battery 2 sandwiched between the main body 50 and the flat plate portion 60 of the battery packaging body 41, the cutout portion 52 of the main body portion 50 and the cutout portion 61 of the flat plate portion 60. A columnar member 70 having a substantially rectangular cross section is disposed in the recess 42 formed by the (flat plate cutout portion). That is, the columnar member 70 is disposed in the recess 42 so as to extend in the thickness direction with respect to the battery packaging body 41. Thereby, it can suppress that the battery 2 moves with respect to the package body 41 for batteries.

  The columnar member 70 is formed, for example, by deforming cardboard into a hollow rectangular cross section. Moreover, the columnar member 70 is formed in the predetermined length which can be arrange | positioned in the recessed part 42 of the several packaging body 41 for batteries arranged in the thickness direction. Therefore, the plurality of batteries 2 can be packed by the battery packing body 41 and connected by the columnar member 70 in a state where they are arranged in the thickness direction. The columnar member 70 is not limited to a corrugated cardboard deformed into a rectangular cross section, and may be made of other materials or a solid rectangular cross section.

(Effect of Embodiment 2)
In the present embodiment, the battery 2 is sandwiched between the main body portion 50 and the flat plate portion 60 of the battery packaging body 41 and is positioned between the positive electrode external terminal 37 and the negative electrode external terminal 38 of the battery 2. Thus, the notches 52 and 61 were formed, respectively. And the columnar member 70 was arrange | positioned in the recessed part 42 comprised by these notch parts 52 and 61. FIG. Thereby, it can prevent that the battery 2 moves to the positive electrode external terminal 37 and the negative electrode external terminal 38 side with respect to the package body 41 for batteries. Therefore, even when an impact is applied to the battery packaging body 1 when the battery 2 is transported, the positive electrode external terminal 37 and the negative electrode external terminal 38 of the battery 2 can be more reliably prevented from being damaged.

(Other embodiments)
While the embodiments of the present invention have been described above, the above-described embodiments are merely examples for carrying out the present invention. Therefore, the present invention is not limited to the above-described embodiment, and can be implemented by appropriately modifying the above-described embodiment without departing from the spirit thereof.

  In each of the embodiments described above, the battery packing bodies 1 and 41 include the main body portions 10 and 50 and the flat plate portions 20 and 60. However, the packing body may be constituted by only the main body portions 10 and 50. In this case, it is preferable that the battery 2 is sandwiched between packing bodies composed only of the main body portions 10 and 50. Moreover, you may comprise the main-body parts 10 and 50 and the flat plate parts 20 and 60 by another member.

  In each of the embodiments described above, the holding portion 21 and the notches 52 and 61 are formed in the battery packaging bodies 1 and 41. However, you may provide only the opening parts 11 and 51, without providing a holding | maintenance part and a notch part. In particular, when the weight of the battery 2 is light, the battery 2 can be prevented from moving only by engaging the bulging portion 2 a of the battery 2 with the peripheral portions of the openings 11 and 51.

  In each of the embodiments described above, the battery 2 is configured to have the bulging portion 2a mainly on one side. However, the battery may have a bulging portion on both sides. Also in this case, by packing the battery with the battery packing body 1, 41 having the configuration of each of the above embodiments, the battery is damaged even if an impact is applied to the battery packing body 1, 41 during the transportation of the battery. You can prevent it.

  The battery packing body according to the present invention can be used as a packing body for packing the battery during transportation of a flat battery.

DESCRIPTION OF SYMBOLS 1, 41 Battery packaging body 2 Battery 2a Swelling part 2b Seal part 2c Slope 10, 50 Main body part 11, 51 Opening part 20, 60 Flat plate part 20a Mounting surface 21 Holding part 31 Laminate body 36 Laminate film exterior body 37 Positive electrode External terminal (external terminal)
38 Negative external terminal (external terminal)
42 Concave portion 52 Notch portion 61 Notch portion (flat plate notch portion)
70 Columnar member

Claims (10)

It has a flat plate-like main body that covers a flat battery having a bulging portion bulging in the thickness direction from the bulging portion side,
The battery packaging body is formed with an opening in the main body so that the bulging portion of the battery is positioned inward. The battery package according to claim 1,
A battery packaging body configured to be engageable with an outer peripheral edge portion of the battery and further including a holding portion for holding the battery with respect to the main body portion. In the battery packaging body according to claim 2,
A flat plate portion for sandwiching the battery with the main body portion;
The said holding | maintenance part is a battery packaging body provided in at least one of the said main-body part and the said flat plate part. In the battery packaging body according to claim 2 or 3,
The battery has a plurality of external terminals extending in the same direction outward from the position away from each other,
The said holding | maintenance part is a package for batteries provided so that the said battery may be hold | maintained in the position between these external terminals. In the battery packaging body according to any one of claims 1 to 3,
The main body is formed with a notch extending from the outer peripheral side toward the opening,
The battery packaging body further comprising a columnar member that engages with the notch. In the battery packaging body according to claim 5,
The battery has a plurality of external terminals extending in the same direction outward from the position away from each other,
The said notch part is a battery packaging body currently formed in the position corresponding to between these external terminals in the said main-body part. In the battery packaging body according to claim 5 or 6,
A flat plate portion for sandwiching the battery with the main body portion;
The battery packaging body in which the flat plate notch part which can engage the said columnar member is formed also in the said flat plate part in the state which pinched | interposed the said battery between the said main-body parts. The battery package according to claim 1,
The battery packaging body further comprising a flat plate portion that sandwiches the battery with the main body portion. In the battery packaging body according to claim 8,
The flat plate part is a battery packing body connected to the main body part at an end thereof. In the battery packaging body according to any one of claims 1 to 9,
The battery packaging body has a thickness of the main body portion larger than a bulging height of the bulging portion of the battery.

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