JP2000223162A - Jig for charging/discharging sheet-like battery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a jig for charging/discharging sheet-like batteries, capable of realizing space saving and suitable for initial charging on a high volume production basis with high reliability. SOLUTION: Relating to a jig for charging/discharging sheet-like batteries, a jig 1 for charge/discharge has a magazine structure in which battery housing parts 3 each having an opening on one end thereof and housing a sheet-like battery 4 therein are disposed so as to stand on different levels in a fixed direction. Each battery housing part 3 has a bottom surface formed into a tapered shape 3a and lead-terminal lead out grooves for positioning lead terminals 4a, 4b of the battery 4 so as to run along a stepped surface neighboring the opening, or each battery housing part 3 has a bottom surface formed into a tapered shape 3 and, in its end part, lead-terminal lead out holes 1d, 1e for leading out the lead terminals 4a, 4b of the battery 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charging / discharging jig for a thin plate battery, and more particularly, to a charging / discharging jig used for a charging / discharging process in a manufacturing process of a sheet type or a sheet type secondary battery. .

[0002]

2. Description of the Related Art In recent years, cordless and high performance electronic devices such as portable telephones and portable notebook personal computers have been remarkable.
There is a demand for smaller, lighter, thinner and larger capacities.
In response to such demands, a sheet-type secondary sheet having a thickness of about 0.5 mm provided with an electrode element having a configuration in which a positive electrode layer, a polymer electrolyte layer, and a negative electrode layer are laminated and integrated into a sheet shape (plate shape). Batteries are known (for example, U.S. Pat.
5,296,318).

That is, a positive electrode comprising a current collector carrying a positive electrode layer containing an active material such as a metal oxide, a non-aqueous electrolyte and an electrolyte-retaining polymer, and, for example, a hexafluoropropylene-vinylidene fluoride copolymer Polymer electrolyte and ethylene carbonate solution such as lithium salt. Non-aqueous electrolyte solution. An electrolyte-retaining polymer electrolyte that functions as a separator, an active material that absorbs and releases lithium ions, a non-aqueous electrolyte solution, and an electrolyte. A negative electrode comprising a negative electrode layer containing a retentive polymer supported on a current collector is laminated in the above order to form an electrode element, and the rear surface of the positive electrode and the negative electrode is covered with a resin film to protect and seal (sealing) To form a sheet-type secondary battery. by the way,
In general, this type of sheet type secondary battery is small and thin, so that the electrode terminals (lead terminals for external connection) respectively derived from the electrode elements are necessarily reduced in size. On the other hand, in the manufacturing process, the initial charging process is performed also in the case of the sheet-type secondary battery as in the case of the other secondary batteries.

[0004]

However, in the charge / discharge (initial charge) processing, the charge / discharge current terminal or the voltage measurement terminal is brought into direct contact with the positive external connection terminal and the negative external connection terminal. become. Here, in charging / discharging the plate-shaped secondary battery, a conventional charging / discharging device for a cylindrical secondary battery cannot be used. That is, since the cylindrical secondary battery has positive and negative external connection terminals at both ends, the cylindrical secondary battery penetrates the cylindrical secondary battery and has a pair of terminal blocks having charge / discharge contact terminals. Thus, a required charge / discharge process can be performed with both ends sandwiched.

[0005] In the case of a thin plate-shaped battery, the positive and negative external connection terminal leads are led out and arranged in a certain direction. The connection will be made. In general, a thin plate-shaped battery is placed on a charging / discharging jig in a plane, and contact terminals for charging / discharging are provided on positive and negative external connection terminal surfaces which are led out and arranged in parallel. The contact mode is adopted.
Here, the thin battery is mounted on the charging / discharging jig in a planar manner.
Arrangement increases space (larger support)
And raise issues.

[0006] On the other hand, for the purpose of saving space, storage sections of thin-plate batteries having one end opened are vertically aligned and arranged.
A method is considered in which the lead terminals are led out of the storage section to store and mount the electro-thin plate battery. But in this case,
In order to facilitate electrical connection with the charging / discharging terminal, it is necessary to bend and position the lead terminal that has been led out along the opening end face of the housing. In addition, since the opening end faces are on the same plane, there is a possibility that contact between the terminal and the lead terminal of the electrothin plate-shaped battery stored and mounted in the adjacent storage section may be caused.

The present invention has been made in view of such circumstances, and provides a jig for charging and discharging a thin plate battery which can save space and is highly suitable for mass-produced initial charge processing. With the goal.

[0008]

According to a first aspect of the present invention, there is provided a charge / discharge jig having a magazine structure in which a battery accommodating portion having one end opening for accommodating a thin plate-shaped battery is arranged stepwise in a predetermined direction. The battery storage section is formed with a tapered bottom surface,
A jig for charging / discharging a thin plate battery, further comprising a lead terminal lead-out groove for positioning a lead terminal of the battery along a stepped surface adjacent to an opening.

According to a second aspect of the present invention, there is provided a charging / discharging jig having a magazine structure in which a battery housing portion having one end opening for housing a thin plate battery is arranged stepwise in a predetermined direction. Is a tapered charging / discharging jig characterized by having a lead terminal lead-out hole for leading a lead terminal of a battery at a tip end thereof.

That is, the present invention takes into consideration the reliability and cost reduction of the charge / discharge process in the final stage of the manufacturing process, and mounts and supports the thin plate battery three-dimensionally and stepwise to save space. On the other hand, by increasing the reliability of the connection with the charge / discharge terminal by adopting a configuration in which the lead terminals of the plate battery are led out to the stepped surface and the contact with the lead terminal of the adjacent thin plate battery is taken out. It is the main point.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 (a), (b) and FIG.
Embodiments will be described with reference to (a) to (c).

FIG. 1A is a perspective view showing a main part of a charging / discharging jig for a thin plate battery according to a first embodiment. FIG.
In FIG. 1A, reference numeral 1 denotes a charge / discharge jig having a magazine structure in which a battery housing portion 3 having an end opening 2 for housing a thin-plate battery is arranged stepwise in a predetermined direction. Here, the charging / discharging jig 1 is made of, for example, a flame-retardant polycarbonate resin,
It is a molded article made of S resin or a composition in which an inorganic filler is blended with these resins. The battery housing 3 has a cross section of about 50 × 5 mm with one end opening 2 and a depth of
It is a space of about 50mm. And this battery storage part 3
A battery 4 (described later) is formed along a stepped surface 1a having a bottom surface tapered at about 60 ° and a stepped surface 1a adjacent to the opening 2.
Lead terminal lead-out groove 1 for positioning lead terminals 4a and 4b
b and 1c are also formed.

Next, an example of use of the charging / discharging jig 1 will be described.

FIG. 1 (b) schematically shows a mode of use, for example, a cross section of about 4 × 0.1 mm, a length of about 10 mm, and positive and negative lead terminals 4a, 4b extending apart from one end. A prepared polymer secondary battery 4 is prepared. Then, the polymer secondary battery 4 is stored and mounted in the battery storage section 3 of the charging / discharging jig 1 prepared in advance. That is, lead terminal 4
The side where a and 4b are extended is defined as the opening 2 side, and the battery housing 3
While the polymer rechargeable battery 4 is stored and mounted on the surface, the lead terminals 4a and 4b of the polymer rechargeable battery 4 are positioned and arranged in the lead terminal lead-out grooves 1b and 1c on the stepped surface of the charging and discharging jig 1.

After the polymer secondary battery 4 is stored and mounted in the charging / discharging jig 1 in this way, the corresponding charging / discharging terminals are brought into contact with the lead terminals 4a, 4b positioned and arranged, and the required charging / discharging is performed. The processing is performed sequentially or simultaneously (collectively). In this charge / discharge treatment, the lead terminals 4a and 4b of the polymer secondary battery 4 are not only separated from each other, but also have different arrangement surfaces from the lead terminals 4a and 4b of the polymer secondary battery 4.
There is no danger of mutual contact. That is, mass-productive and highly reliable charge / discharge processing can be performed while improving space efficiency and reducing complicated operations.

FIGS. 2 (a), 2 (b) and 2 (c) schematically show the essential parts of the jig for charging / discharging a thin plate battery according to the second embodiment and the mode of use. , (A) sectional view,
(b) is a bottom view and (c) is a side view.

In FIGS. 2 (a), 2 (b) and 2 (c), reference numeral 1 denotes a charge / discharge of a magazine structure in which a battery accommodating portion 3 of one end opening 2 for accommodating a thin plate-shaped battery is arranged stepwise in a predetermined direction. It is a jig. Here, the charging / discharging jig 1 is a molded body made of, for example, a flame-retardant polycarbonate resin, a flame-retardant ABS resin, or a composition in which an inorganic filler is mixed with these resins. In addition, one end of the battery storage unit 3 has the opening 2.
It is a space with a cross section of about 50 x 5 mm and a depth of about 50 mm. And this battery storage part 3 is formed in 3a with a tapered bottom surface of about 60 degrees. Furthermore, the tapered 3a
Lead terminals 4a and 4b of the battery 4 are formed with lead terminal lead holes 1d and 1e at the end thereof. The lead terminals 4a and 4b from which the lead terminal lead holes 1d and 1e are led are stepped. It is configured to be arranged along the adjacent stepped surface.

Next, an example of use of the charging / discharging jig having the above configuration will be described.

For example, a polymer secondary battery 4 having a cross section of about 4 × 0.1 mm and a length of about 10 mm, and having positive and negative lead terminals 4a and 4b extending apart from one end side is prepared. Then, the polymer secondary battery 4 is stored and mounted in the battery storage section 3 of the charging / discharging jig 1 prepared in advance. That is, the polymer secondary battery 4 is housed and mounted in the battery housing 3 with the side where the lead terminals 4a and 4b are extended as the tapered bottom side 3a. In this storing / mounting process, the charging / discharging jig 1
Lead terminals 4a and 4b are tapered when in contact with the bottom side
While being guided by the surface 3a, it is led out and positioned on the uneven surface via the lead terminal lead-out holes 1d and 1e. The lead terminals 4a and 4b are led and arranged with high precision by the lead terminal lead holes 1d and 1e.

After the polymer secondary battery 4 is stored and mounted in the charging / discharging jig 1 as described above, the corresponding charging / discharging terminals are brought into contact with the lead terminals 4a and 4b positioned and arranged.
The required charge / discharge processing is performed sequentially or simultaneously (collectively). In this charging / discharging process, the lead terminals 4a and 4b of the polymer secondary battery 4 are separated from each other by reliable positioning, while the arrangement surfaces of the lead terminals 4a and 4b of the other polymer secondary batteries 4 are also different. Therefore, there is no danger of mutual contact.
In other words, space efficiency is improved and complicated operations are eliminated.
Mass production and highly reliable charge / discharge treatment can be performed while reducing power consumption. In this embodiment, if the configuration is such that the polymer secondary battery 4 housed and mounted in the battery housing portion 3 protrudes from one end opening 2 (stepped surface) by about 10 to 15 mm, for example, an air cylinder or the like is driven. The storage and attachment of the polymer secondary battery 4 to the battery storage section 3 can be automatically performed by a chuck mechanism or the like serving as a source.

It should be noted that the present invention is not limited to the above examples, and various modifications can be made without departing from the spirit of the invention. For example, charge and discharge jig material,
It can be arbitrarily selected and set, such as the number of battery storage units.

[0022]

According to the first aspect of the present invention, in the initial charging / discharging process of a sheet-like (sheet-type) secondary battery or the like, the sheet-like secondary batteries and the like are housed and mounted in a stepped form so as to be aligned with each other. This can save space. In addition, the derived lead terminals are securely positioned and arranged,
It is easy to adopt an electrical connection method to the charge / discharge terminal.

Therefore, not only the occurrence of bending of a thin plate secondary battery or the like is eliminated, but also the operation of bending lead terminals is omitted. In other words, an economically effective charge / discharge jig that is space-saving and that can easily perform highly reliable charge / discharge processing while avoiding complicated operations is provided.

According to the second aspect of the invention, in addition to the effects obtained by the first aspect of the invention, it is possible to improve the efficiency of the charge / discharge processing operation.

[Brief description of the drawings]

FIG. 1 (a) is a perspective view showing a main structure of a charge / discharge jig according to a first embodiment, and FIG. 1 (b) is a perspective view schematically showing a use mode thereof.

FIGS. 2A and 2B schematically show the main structure and usage of a charging / discharging jig according to a second embodiment, in which FIG.
Is a bottom view, and (c) is a side view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Charge / discharge jig 1a ... Stepped surface 1b, 1c ... Lead terminal lead-out groove 1d, 1e ... Lead terminal lead-out hole 2 ... One end opening 3 ... Battery storage part 3a ... Tapered 4 ... … Thin battery 4a, 4b …… lead terminal

Claims (2)

[Claims] 1. A charging / discharging jig having a magazine structure in which a battery storage portion at one end opening for storing a thin plate-shaped battery is arranged stepwise in a predetermined direction, wherein the bottom surface of the battery storage portion is tapered. A jig for charging / discharging a thin plate battery, wherein the jig has a lead terminal lead-out groove for positioning a lead terminal of the battery along a stepped surface adjacent to the opening. 2. A charging / discharging jig having a magazine structure in which a battery storage portion at one end opening for storing a thin-plate battery is arranged stepwise in a predetermined direction, wherein the battery storage portion has a tapered bottom surface. And a lead terminal lead-out hole for leading a lead terminal of the battery at a tip end thereof.