Storage body and charging method for secondary battery

Abstract

The storage body 100 includes: a chamber 11 for storing the secondary battery 1 having a pair of external electrodes or an electronic component having the secondary battery 1; a long strip-shaped carrier sheet 10 in which a plurality of chambers 11 are formed along the long side direction; a first electrode 21 and a second electrode 22 for charging the secondary battery 1; a first conducting wire 31 electrically connected to the plurality of first electrodes 21; and a second conducting wire 32 electrically connected to the plurality of second electrodes 22. The first electrode 21 and the second electrode 22 are formed in the chamber 11, and the first conducting wire 31 and the second conducting wire 32 are formed in the carrier sheet 10.

Description

Technical Field

[0001] The present invention relates to a storage body for storing secondary batteries or electronic components having secondary batteries, and a charging method for the secondary batteries stored in the storage body. Background Art

[0002] Patent Document 1 discloses an electronic component string including: a long carrier tape formed with a plurality of chambers in the longitudinal direction; electronic components stored in the chambers; and a cover film bonded to the carrier tape so as to cover the chambers.

[0003] As an example of the usage of this electronic component string, for example, the following usage can be considered: a pre-charged secondary battery is transported to a manufacturing factory of an electronic device in a state of being stored in a chamber, and at the factory as the transport destination, the cover film is peeled off and the secondary battery is taken out from the carrier tape for use in the manufacture of the electronic device.

[0004] Prior Art Documents

[0005] Patent Documents

[0006] Patent Document 1: Japanese Patent Application Laid-Open No. 2004-268916 Summary of the Invention

[0007] Technical Problem to be Solved by the Invention

[0008] However, even if the secondary battery is pre-charged and stored in the chamber of the carrier tape, if the time elapsed until actual use is long, the capacity of the secondary battery will decrease due to self-discharge. In this case, it is necessary to take out the secondary batteries one by one from the carrier tape and recharge them, which is very time-consuming.

[0009] The present invention solves the above technical problem, and an object thereof is to provide a storage body capable of charging a plurality of stored secondary batteries or electronic components having secondary batteries without taking them out from a carrier sheet, and a charging method for the secondary batteries stored in the storage body.

[0010] Technical Solution for Solving the Technical Problem

[0011] The storage body of the present invention is characterized by including: a chamber for storing a secondary battery having a pair of external electrodes or an electronic component having the secondary battery; a long carrier sheet formed with a plurality of the chambers in the longitudinal direction; a first electrode and a second electrode for charging the secondary battery; a first wire electrically connected to a plurality of the first electrodes; and a second wire electrically connected to a plurality of the second electrodes, the first electrode and the second electrode being formed in the chamber, and the first wire and the second wire being formed in the carrier sheet.

[0012] Alternatively, a plurality of the chambers may also be formed in the short side direction of the carrier sheet that is orthogonal to the long side direction.

[0013] Alternatively, the first electrode may be formed on one end side of the chamber, and the second electrode may be formed on the other end side of the chamber.

[0014] In addition, alternatively, the first electrode may be formed on one side of the first end of the chamber in the long side direction and on one side of the second end of the chamber in the short side direction that is orthogonal to the long side direction, and the second electrode may be formed on one side of the third end of the chamber that is opposite to the first end in the long side direction and on one side of the fourth end of the chamber that is opposite to the second end in the short side direction.

[0015] Alternatively, a movement suppression mechanism may be provided in the chamber, and the movement suppression mechanism is used to suppress the movement of the secondary battery or the electronic component.

[0016] Alternatively, the housing body may further include a cover sheet, the cover sheet is bonded to the carrier sheet so as to cover the opening of the chamber that houses the secondary battery or the electronic component, the cover sheet has a protrusion portion, and the protrusion portion abuts against the secondary battery or the electronic component in a state where the cover sheet is bonded to the carrier sheet.

[0017] Alternatively, in the direction in which the first electrode and the second electrode face each other, the difference between the size of the chamber and the size of the secondary battery is smaller than the sizes of the first electrode and the second electrode.

[0018] A method for charging a secondary battery is characterized by including the following steps: housing the secondary battery in the chamber of any of the above-mentioned housings in such a manner that one of a pair of external electrodes of the secondary battery contacts the first electrode and the other contacts the second electrode; and applying a DC voltage to the first wire and the second wire.

[0019] Advantages of the Invention

[0020] According to the housing of the present invention, by applying a DC voltage between the first wire and the second wire in a state where a secondary battery having a pair of external electrodes or an electronic component including a secondary battery is housed in the chamber of the carrier sheet, the secondary battery can be charged. Thus, even when the capacity of the secondary battery that has been charged before being housed in the chamber of the carrier sheet is reduced due to self-discharge, the secondary battery can be charged before being taken out from the carrier sheet. In addition, since the secondary battery can be charged before being taken out from the carrier sheet, the secondary battery or the electronic component including the secondary battery can be housed in the carrier sheet without being charged.

[0021] In addition, according to the charging method of the secondary battery of the present invention, the secondary battery can be charged by applying a DC voltage between the first conductive wire and the second conductive wire in a state where the secondary battery having a pair of external electrodes or an electronic component including the secondary battery is housed in a chamber of a carrier sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 FIG. is a plan view showing the configuration of the housing body in the first embodiment of the present invention.

[0023] Figure 2 is Figure 1 a cross-sectional view of the housing body shown taken along line II-II.

[0024] Figure 3 FIG. is a view showing the positional relationship between the secondary battery and the chamber when the secondary battery is displaced in the longitudinal direction, Figure 3 where (a) shows a state where the displacement occurs toward the first electrode side, Figure 3 and (b) shows a state where the displacement occurs toward the second electrode side.

[0025] Figure 4 FIG. is a plan view showing an example of the shape of an electronic component including a secondary battery.

[0026] Figure 5 FIG. is a side view showing another example of the shape of an electronic component including a secondary battery.

[0027] Figure 6 FIG. is a cross-sectional view at the position of the first external electrode of the secondary battery when the carrier sheet is viewed from the longitudinal direction.

[0028] Figure 7 FIG. is a plan view schematically showing the shapes of the first electrode and the second electrode formed on the bottom surface of the chamber.

[0029] Figure 8 FIG. is a plan view showing the configuration of the housing body in the fourth embodiment.

[0030] Figure 9 FIG. is a plan view showing the configuration of the housing body in the fifth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0031] Hereinafter, embodiments of the present invention will be shown, and the features of the present invention will be specifically described.

[0032] <First Embodiment>

[0033] Figure 1 FIG. is a plan view showing the configuration of the housing body 100 in the first embodiment of the present invention. In addition, Figure 2 is Figure 1Cross-sectional view of the storage body 100 taken along line II-II as shown.

[0034] The storage body 100 in the first embodiment includes: a chamber 11 for storing a secondary battery 1 having a pair of external electrodes or an electronic component having the secondary battery 1; a strip-shaped carrier sheet 10 formed with a plurality of chambers 11 along the long side direction L; a first electrode 21 and a second electrode 22 for charging the secondary battery 1; a first conductive wire 31 electrically connected to the plurality of first electrodes 21; and a second conductive wire 32 electrically connected to the plurality of second electrodes 22.

[0035] The storage body 100 in the present embodiment further includes a cover sheet 40.

[0036] The carrier sheet 10 is made of a flexible material such as paper or synthetic resin. The size of the carrier sheet 10 in the short side direction W is, for example, 10 mm, and the size in the thickness direction T is, for example, 3 mm. These sizes are appropriately changed according to the size of the accommodated secondary battery 1. The size of the carrier sheet 10 in the long side direction L can be any size.

[0037] It should be noted that any two of the long side direction L, the short side direction W, and the thickness direction T are orthogonal directions.

[0038] The chamber 11 formed in the carrier sheet 10 is a space for storing the secondary battery 1 or an electronic component having the secondary battery 1. Here, as Figure 1 and Figure 2 shown, the case where the secondary battery 1 is stored in each of the plurality of chambers 11 will be described. The plurality of chambers 11 are formed at equal intervals, for example, along the long side direction L of the carrier sheet 10. In the present embodiment, the chamber 11 is formed such that the long side direction of the chamber 11 having a rectangular shape in a top view coincides with the long side direction L of the carrier sheet 10.

[0039] The chamber 11 has a size capable of completely accommodating the secondary battery 1 in a top view. However, the size of the chamber 11 in the short side direction is shorter than the size of the accommodated secondary battery 1 in the long side direction. For example, Figure 1 and Figure 2 shown, the sizes of the chamber 11 in the long side direction L, the short side direction W, and the thickness direction T are 4 mm, 3 mm, and 2 mm, respectively.

[0040] In the chamber 11, a first electrode 21 and a second electrode 22 for charging the secondary battery 1 are formed. One of the first electrode 21 and the second electrode 22 is a positive electrode, and the other is a negative electrode. As will be described later, one of the first electrode 21 and the second electrode 22 contacts one of the first external electrode 1a and the second external electrode 1b, which are a pair of external electrodes of the housed secondary battery 1, and the other of the first electrode 21 and the second electrode 22 contacts the other of the first external electrode 1a and the second external electrode 1b of the secondary battery 1.

[0041] In the present embodiment, the first electrode 21 is formed on one end side in the longitudinal direction L of the bottom surface 11a of the chamber 11, and the second electrode 22 is formed on the other end side. In addition, in the present embodiment, the dimension of the first electrode 21 and the second electrode 22 in the short side direction is the same as the dimension of the chamber 11 in the short side direction W.

[0042] The first conductive wire 31 and the second conductive wire 32 are formed on the carrier sheet 10 and are made of a conductive material. As described above, the first conductive wire 31 is electrically connected to a plurality of first electrodes 21, and the second conductive wire 32 is electrically connected to a plurality of second electrodes 22. That is, all the first electrodes 21 and the second electrodes 22 are connected in parallel.

[0043] The secondary battery 1 capable of charging and discharging has a first external electrode 1a and a second external electrode 1b as a pair of external electrodes. One of the first external electrode 1a and the second external electrode 1b is a positive electrode, and the other is a negative electrode. In the present embodiment, the secondary battery 1 has a substantially rectangular parallelepiped shape.

[0044] The type of the secondary battery 1 is not particularly limited, but a all-solid-state battery capable of CV charging and hardly deteriorating even when discharged to 0V is preferable. For example, as the secondary battery 1, a all-solid-state battery with a nominal voltage of 2.0V and a capacity of 0.1 mAh can be used.

[0045] In the state where the secondary battery 1 is housed in the chamber 11 of the carrier sheet 10, as Figure 1 and Figure 2 shown, the first external electrode 1a contacts the first electrode 21, and the second external electrode 1b contacts the second electrode 22. However, it is also possible to make the first external electrode 1a contact the second electrode 22 and make the second external electrode 1b contact the first electrode 21. In this state, when the first conductive wire 31 and the second conductive wire 32 are connected to an external power supply and a DC voltage is applied, a DC voltage is applied between the first external electrode 1a and the second external electrode 1b of the secondary battery 1, and the secondary battery 1 is charged.

[0046] That is, the charging method of the secondary battery 1 includes: step (a) of accommodating the secondary battery 1 in the chamber 11 of the accommodating body 100 such that one of the pair of external electrodes 1a and 1b of the secondary battery 1 is in contact with the first electrode 21 and the other is in contact with the second electrode 22; and step (b) of applying a DC voltage to the first conductive wire 31 and the second conductive wire 32.

[0047] Charging of the secondary battery 1 is performed, for example, by CV charging with a constant voltage applied. As described above, since all the first electrodes 21 and the second electrodes 22 are connected in parallel, when a DC voltage is applied between the first conductive wire 31 and the second conductive wire 32, charging of all the secondary batteries 1 accommodated in the chamber 11 can be performed simultaneously.

[0048] For example, the accommodating body 100 accommodating a plurality of secondary batteries 1 is transported to a manufacturing factory of an electronic device that uses the secondary battery 1. In the manufacturing factory of the electronic device, charging of all the secondary batteries 1 is performed by applying a DC voltage between the first conductive wire 31 and the second conductive wire 32. In this case, the secondary batteries 1 can be shipped after being accommodated in the carrier sheet 10 without being pre-charged in advance. In addition, even when the accommodating body 100 is shipped in a state where the secondary batteries 1 are accommodated in the carrier sheet 10 after being pre-charged, charging can be performed before the secondary batteries 1 are taken out from the carrier sheet 10, so that the capacity reduction amount due to self-discharge can be supplemented by charging. In either case, the fully charged secondary batteries 1 can be mounted on the electronic device.

[0049] In addition, in the accommodating body 100 of the present embodiment, it is not necessary to charge the secondary batteries 1 one by one after taking them out from the carrier sheet 10, and charging of all the secondary batteries 1 accommodated in the chamber 11 can be performed simultaneously, so the convenience is high.

[0050] The chamber 11 is configured to have a size such that even when the position of the accommodated secondary battery 1 is shifted, the first external electrode 1a of the secondary battery 1 is in contact with the first electrode 21 and the second external electrode 1b is also in contact with the second electrode 22.

[0051] Figure 3 is a diagram showing the positional relationship between the secondary battery 1 and the chamber 11 when the secondary battery 1 is displaced in the long side direction L, Figure 3 where (a) shows a state of displacement toward the first electrode 21, Figure 3 and (b) shows a state of displacement toward the second electrode 22. As Figure 3As shown in (a) and (b), even when the secondary battery 1 moves in the long side direction L and a positional shift occurs, the first external electrode 1a of the secondary battery 1 contacts the first electrode 21, and the second external electrode 1b also contacts the second electrode 22.

[0052] To achieve such a configuration, in the direction in which the first electrode 21 faces the second electrode 22, the difference L3 (= L1 - L2) between the dimension L1 of the chamber 11 and the dimension L2 of the secondary battery 1 is configured to be smaller than the dimensions of the first electrode 21 and the second electrode 22, L4.

[0053] In addition, in the present embodiment, both the first electrode 21 and the second electrode 22 are formed to have the same dimension in the short side direction W as the dimension of the bottom surface 11a of the chamber 11 in the short side direction W. Therefore, even when the secondary battery 1 moves in the short side direction W and a positional shift occurs, the first external electrode 1a of the secondary battery 1 contacts the first electrode 21, and the second external electrode 1b also contacts the second electrode 22.

[0054] That is, in the state where the secondary battery 1 is housed in the chamber 11, even if the secondary battery 1 moves, the first external electrode 1a contacts the first electrode 21, and the second external electrode 1b also contacts the second electrode 22. Therefore, charging of the secondary battery 1 can be reliably performed.

[0055] The cover sheet 40 is bonded to the carrier sheet 10 so as to cover the opening of the chamber 11 that houses the secondary battery 1 or the electronic component having the secondary battery 1. The cover sheet 40 is made of, for example, a synthetic resin film or the like. The cover sheet 40 is bonded to the carrier sheet 10 via an adhesive, for example. By bonding the cover sheet 40 to the carrier sheet 10 so as to cover the opening of the chamber 11 that houses the secondary battery 1 or the electronic component having the secondary battery 1, during the conveyance of the housing 100, it is possible to suppress the housed secondary battery 1 or the electronic component from moving to the outside of the chamber 11, and the secondary battery 1 or the electronic component can be reliably conveyed.

[0056] The cover sheet 40 is provided with a protrusion 41 that abuts against the secondary battery 1 or the electronic component having the secondary battery 1 in a state where the cover sheet 40 is bonded to the carrier sheet 10. Figure 2 The state in which the secondary battery 1 is housed in the chamber 11 and the protrusion 41 provided on the cover sheet 40 abuts against the secondary battery 1 and presses the secondary battery 1 from above is shown. By providing the protrusion 41 on the cover sheet 40, the movement of the secondary battery 1 in the thickness direction T is suppressed by abutting against the secondary battery 1 housed in the chamber 11, and the electrical connection between the first external electrode 1a of the secondary battery 1 and the first electrode 21, and the electrical connection between the second external electrode 1b and the second electrode 22 can be reliably performed. Thereby, charging of the secondary battery 1 can be reliably performed.

[0057] Note that, it is also possible to form a configuration in which the protrusion 41 is omitted from the cover glass 40.

[0058] As described above, in the chamber 11 of the carrier sheet 10, it is also possible to accommodate an electronic component including the secondary battery 1.

[0059] Figure 4 It is a top view showing an example of the shape of the electronic component 50 including the secondary battery 1. Figure 4 In the shown electronic component 50, the secondary battery 1 is arranged in a space approximately half of the short side direction W. The secondary battery 1 has a first external electrode 1a and a second external electrode 1b that are opposite in the long side direction L. In this case, also in the state where the electronic component 50 is accommodated in the chamber 11 of the carrier sheet 10, the first external electrode 1a of the secondary battery 1 contacts the first electrode 21, and the second external electrode 1b contacts the second electrode 22. Therefore, when the first conductive wire 31 and the second conductive wire 32 are connected to an external power source and a DC voltage is applied, charging of the secondary battery 1 of all the electronic components 50 can be performed.

[0060] Figure 5 It is a side view showing an example of another shape of the electronic component 51 including the secondary battery 1. Figure 5 In the shown electronic component 51, the secondary battery 1 is arranged in a space approximately half of the thickness direction T. The secondary battery 1 has a first external electrode 1a and a second external electrode 1b that are opposite in the long side direction L. In this case, the electronic component 51 needs to be accommodated in the chamber 11 in such a way that the first external electrode 1a of the secondary battery 1 contacts the first electrode 21 and the second external electrode 1b contacts the second electrode 22. In this case, charging of the secondary battery 1 of all the electronic components 51 can also be performed in the state where the electronic component 51 is accommodated in the chamber 11 of the carrier sheet 10.

[0061] <Second Embodiment>

[0062] In the housing 100 in the second embodiment, a movement suppression mechanism for suppressing the movement of the secondary battery 1 or the electronic component including the secondary battery 1 is provided in each of the plurality of chambers 11.

[0063] Figure 6 It is a cross-sectional view at the position of the first external electrode 1a of the secondary battery 1 when the carrier sheet 10 is viewed in the long side direction L. Here, as the movement suppression mechanism, a groove 12 is provided in the chamber 11. The groove 12 is formed along the long side direction L, and the dimension in the short side direction W is slightly larger than the dimension in the short side direction W of the accommodated secondary battery 1 or the electronic component including the secondary battery 1.

[0064] The secondary battery 1 or the electronic component including the secondary battery 1 is inserted into the groove 12. Here, as Figure 6As shown, the case of embedding the secondary battery 1 will be described.

[0065] When the secondary battery 1 is housed in the chamber 11 of the carrier sheet 10, by housing it in the form of the embedding groove 12, the movement of the secondary battery 1 in the short side direction W can be restricted. Thereby, the electrical connection between the first external electrode 1a of the secondary battery 1 and the first electrode 21, and the electrical connection between the second external electrode 1b and the second electrode 22 can be made reliable, and the charging of the secondary battery 1 can be carried out reliably.

[0066] <Third Embodiment>

[0067] The shape of the secondary battery 1 housed in the chamber 11 of the carrier sheet 10 or the electronic component including the secondary battery 1 may also be a shape that is substantially square when viewed from above. In this case, when the secondary battery 1 or the electronic component having a shape that is substantially square when viewed from above is housed in the chamber 11, it is considered that the housing is carried out in a state where it is rotated 90° erroneously in the horizontal direction.

[0068] In the housing body 100 in the third embodiment, the first electrode 21 and the second electrode 22 that are a pair of electrodes are formed not only on both end sides in the long side direction L of the chamber 11, but also on both end sides in the short side direction W.

[0069] Figure 7 It is a top view schematically showing the shapes of the first electrode 21 and the second electrode 22 formed on the bottom surface 11a of the chamber 11.

[0070] The first electrode 21 has a shape that is L-shaped when viewed from above, and is formed on the first end 11b side of the chamber 11 in the long side direction L and the second end 11c side of the chamber 11 in the short side direction W. However, the first electrode 21 does not contact the fourth end 11e of the chamber 11 that is opposite to the second end 11c in the short side direction W.

[0071] The second electrode 22 has a shape that is L-shaped when viewed from above, and is formed on the third end 11d side of the chamber 11 that is opposite to the first end 11b in the long side direction L and the fourth end 11e side in the short side direction W. However, the second electrode 22 does not contact the second end 11c of the chamber 11 in the short side direction W.

[0072] Since the first electrode 21 and the second electrode 22 have an L-shaped configuration, even when the secondary battery 1 to be housed is housed in a state where it is erroneously rotated 90° in the horizontal direction, the first external electrode 1a of the secondary battery 1 contacts one of the first electrode 21 and the second electrode 22, and the second external electrode 1b also contacts the other of the first electrode 21 and the second electrode 22. Thereby, charging of the secondary battery 1 can be reliably performed. The same applies even when the electronic component including the secondary battery 1 is housed in the chamber 11.

[0073] <Fourth Embodiment>

[0074] Figure 8 is a plan view showing the configuration of the housing body 100 in the fourth embodiment. In Figure 1 In the housing body 100 in the first embodiment shown, a plurality of chambers 11 are formed in a row, but in the housing body 100 in the fourth embodiment, a plurality of chambers 11 are formed in two rows. That is, a plurality of chambers 11 are also formed in the short side direction W of the carrier sheet 10.

[0075] According to the case where the chambers 11 are formed in two rows, two second conductive wires 32 are provided. As Figure 8 shown, each second conductive wire 32 is electrically connected to the second electrode 22 of the chamber 11 located adjacent.

[0076] On the other hand, only one first conductive wire 31 is provided between the plurality of chambers 11 arranged in two rows. The first conductive wire 31 is electrically connected to the first electrodes 21 of the chambers 11 located on the adjacent two sides.

[0077] However, it may also be configured to provide two first conductive wires 31 and one second conductive wire 32.

[0078] In the housing body 100 in the present embodiment as well, by connecting the first conductive wire 31 and the second conductive wire 32 to an external power source and applying a DC voltage, it is possible to simultaneously charge the plurality of secondary batteries 1 housed in the chambers 11 formed in two rows.

[0079] It should be noted that the plurality of chambers 11 may also be formed in two or more rows on the carrier sheet 10.

[0080] <Fifth Embodiment>

[0081] In Figure 1 In the housing body 100 in the first embodiment shown, the long side direction of the chamber 11 coincides with the long side direction L of the carrier sheet 10. In contrast, in the housing body 100 in the fifth embodiment, the chamber 11 is provided such that the long side direction of the chamber 11 coincides with the short side direction W of the carrier sheet 10.

[0082] Figure 9 is a plan view showing the configuration of the storage body 100 in the fifth embodiment. As Figure 9 shown, on the carrier sheet 10, a chamber 11 having a rectangular shape in a plan view is provided such that the long side direction of the chamber 11 coincides with the short side direction W of the carrier sheet 10. In this configuration as well, the first conductive wire 31 is electrically connected to the first electrode 21, and the second conductive wire 32 is electrically connected to the second electrode 22. Therefore, by connecting the first conductive wire 31 and the second conductive wire 32 to an external power supply and applying a DC voltage, it is possible to charge a plurality of secondary batteries 1 accommodated in the chamber 11 simultaneously.

[0083] The present invention is not limited to the above-described embodiments, and various applications and modifications can be made within the scope of the present invention.

[0084] The storage body 100 in the second embodiment is configured such that a groove 12 is provided in the chamber 11 as a movement restricting mechanism for restricting the movement of the secondary battery 1 or an electronic component having the secondary battery 1. In order to restrict the movement of the secondary battery 1 or the electronic component having the secondary battery 1 accommodated in the chamber 11, an adhesive member may also be provided on the bottom surface of the chamber 11, and the accommodated secondary battery 1 or electronic component may be bonded and fixed by the adhesive member.

[0085] Explanation of reference numerals

[0086] 1 Secondary battery

[0087] 1a First external electrode of the secondary battery

[0088] 1b Second external electrode of the secondary battery

[0089] 10 Carrier sheet

[0090] 11 Chamber

[0091] 12 Groove in the chamber

[0092] 21 First electrode

[0093] 22 Second electrode

[0094] 31 First conductive wire

[0095] 32 Second conductive wire

[0096] 40 Cover sheet

[0097] 41 Protrusion

[0098] 50, 51 Electronic components

[0099] 100 Storage body.

Claims

1. A storage body, characterized in that, it comprises: a chamber for storing a secondary battery having a pair of external electrodes or an electronic component having the secondary battery; a long strip-shaped carrier sheet, on which a plurality of the chambers are formed along the long side direction; a first electrode and a second electrode for charging the secondary battery; a first conducting wire electrically connected to a plurality of the first electrodes; and a second conducting wire electrically connected to a plurality of the second electrodes, the first electrode and the second electrode are formed in the chamber, the first conducting wire and the second conducting wire are formed in the carrier sheet, in the direction in which the first electrode and the second electrode face each other, the difference between the size of the chamber and the size of the secondary battery is smaller than the size of the first electrode and the size of the second electrode.

2. The storage body according to claim 1, characterized in that, a plurality of the chambers are further formed in the short side direction of the carrier sheet orthogonal to the long side direction.

3. The storage body according to claim 1 or 2, characterized in that, the first electrode is formed on one end side of the chamber, and the second electrode is formed on the other end side of the chamber.

4. The storage body according to claim 1 or 2, characterized in that, the first electrode is formed on one side of the first end of the chamber in the long side direction and on one side of the second end of the chamber in the short side direction orthogonal to the long side direction, the second electrode is formed on one side of the third end of the chamber opposite to the first end in the long side direction and on one side of the fourth end of the chamber opposite to the second end in the short side direction.

5. The storage body according to claim 1 or 2, characterized in that, a movement suppression mechanism is provided in the chamber, and the movement suppression mechanism is used to suppress the movement of the secondary battery or the electronic component.

6. The storage body according to claim 1 or 2, characterized in that, the storage body further comprises a cover sheet, and the cover sheet is bonded to the carrier sheet in a manner of covering the opening of the chamber storing the secondary battery or the electronic component, the cover sheet has a protrusion, and the protrusion abuts against the secondary battery or the electronic component in a state where the cover sheet is bonded to the carrier sheet.

7. A method for charging a secondary battery, characterized in that, it comprises the following steps: storing the secondary battery in the chamber of the storage body according to any one of claims 1 to 6 in such a manner that one of a pair of external electrodes of the secondary battery contacts the first electrode and the other contacts the second electrode; and applying a DC voltage to the first conducting wire and the second conducting wire.

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