JP2011198744A - Decomposition method for storage battery, decomposition device for storage battery, storage battery, manufacturing method for the same, and container body for manufacturing storage battery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a decomposition method for a storage battery which can safely and surely take out an electrode body from an enclosed container at the time of decomposing the storage battery and is easy to separate after decomposition and is excellent on recyclability.SOLUTION: The decomposition method for a storage battery includes a breaking gap putting process of preparing a breaking gap, which is not penetrated inside the enclosing container, on an outer surface of a container body of an enclosing container of the storage battery; an enclosing container breaking process of opening by breaking the enclosing container with the breaking gap by adding external force to the enclosing container; an enclosing container separation process of exposing the electrode body; and an electrode body taking-out process of taking out the electrode body from the enclosing container by the movement for separating the electrode body and the enclosing container.

Description

  The present invention is, for example, a primary battery such as a manganese battery, an alkaline battery, a lithium battery, and the like used in an electronic device such as a personal computer, a mobile phone, a digital camera, and a PDA (Personal Digital Assistance) enclosed in an enclosure. Enclosed in order to perform predetermined inspections such as safety tests and recycling in secondary batteries such as lead-acid batteries, nickel-cadmium batteries, nickel-hydrogen batteries, lithium-ion batteries, etc., double-layer capacitors, capacitors, etc. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage battery disassembling method for taking out an electrode body, which is a content in a container, from a sealed container, a storage battery disassembling apparatus therefor, a storage battery therefor, a method for manufacturing the storage battery, and a container body for storage battery manufacture.

2. Description of the Related Art Conventionally, a rechargeable storage battery is used as a power source for electronic devices such as notebook computers, mobile phones, and PDAs (Personal Digital Assistance).
Examples of such a storage battery include an aqueous battery such as a nickel hydride secondary battery, a nonaqueous battery such as a lithium ion secondary battery, a capacitor such as an electric double layer capacitor, and a capacitor.

  As the structure, as shown in the partially cut exploded perspective view shown in FIG. 26, for example, in the lithium ion secondary battery (storage battery) 100, as the positive electrode 102, lithium cobalt oxide or the like is used as a solvent on both surfaces of the aluminum foil. It is made by melting, coating, drying and pressing. Further, the negative electrode 104 is produced by dissolving a carbon material such as graphite with a solvent on both sides of a copper foil, applying, drying and pressing.

  And between these positive electrode 102 and the negative electrode 104, the separator 106 which consists of synthetic resins, such as polyolefin resin, such as polyethylene and a polypropylene, can move an ion, for example is interposed. Are stacked.

Further, when the lithium ion secondary battery 100 is cylindrical as shown in the drawing, the laminated body is wound into a cylindrical shape like Baumkuchen to constitute the electrode body 103.
Then, the electrode body 103 is brought into electrical contact with the negative electrode tab 110 of the negative electrode 104, for example, in a nickel-plated iron cylindrical container body 108, and an electrolyte is injected. Thereafter, the lid member 112 is electrically connected to the positive electrode tab 114 of the positive electrode 102 and then sealed by caulking to constitute the sealed container 101. When the lithium ion secondary battery 100 is square, the electrode body is wound in a flat shape.

  In FIG. 26, reference numerals 116 and 118 denote insulating members, 120 denotes a pressure safety valve such as a diaphragm, 122 denotes packing, 124 denotes a PTC element, 126 denotes a current interruption mechanism, and 128 denotes a positive electrode terminal. It is.

In such a lithium ion secondary battery 100, the container body 108 is a negative electrode, and the portion 128 constitutes a positive electrode.
In recent years, demand for the rechargeable storage battery 100 configured as described above has been increasing, and further reduction in size and weight and increase in capacity have been promoted, and research has been actively conducted.

  By the way, in such a storage battery 100, in order to confirm whether there is a possibility of contamination of foreign materials such as metal powder in the research and development of electrode materials and manufacturing processes, the storage battery 100 is disassembled and the electrode body 103 is removed from the enclosed container 101. It is frequently taken out.

  In addition, various safety standards are provided so as to ensure safety during use. For example, a JIS standard forced internal short circuit test (JIS C8714: 2007) has been established, and in order to carry out this forced internal short circuit test, the fully charged storage battery 100 is disassembled in an environment with a dew point of -25 ° C. or lower. Then, it is necessary to take out the electrode body 103 from the enclosed container 101.

  In such a standard test, as a method of taking out the electrode body 103 from the enclosed container 101, conventionally, for example, by manually disassembling the enclosed container 101 using a metal nipper having conductivity, The internal electrode body 103 is taken out.

Dismantling the fully charged storage battery 100 by such manual work requires skill, and there is a risk of exothermic fire and is dangerous.
Moreover, in order to disassemble the storage battery 100 in an atmosphere from which moisture at a dew point of −25 ° C. or less has been removed, it is necessary to carry out in a work room (glove box) in an inert gas atmosphere such as a dry room or argon. Work in a glove box with poor workability is difficult and is done in a dry room. However, the dry room is large and expensive, and the dry room is limited to some battery manufacturers.

For this reason, the present applicant has already proposed a method of disassembling the storage battery 100 using a dedicated disassembly device in Patent Document 1 (Japanese Patent Application No. 2009-041303).
As disclosed in Patent Document 1, such a decomposition apparatus first cuts the lid side of the enclosure 101 with a cutting machine, and then presses and deforms a part of the bottom side of the enclosure 101 with a pressurizer. Thus, the electrode body 103 is pushed upward in the enclosure 101.

Then, the bottom side of the pressed and raised enclosure container 101 is cut again by a cutting machine so that the exposed electrode body 103 is taken out from the enclosure container 101.
On the other hand, since such a storage battery 100 includes expensive and recyclable resources such as cobalt and lithium among the constituent members, the storage battery 100 that has become unnecessary is disassembled for each member. Recycling of recyclable materials by sorting is also conventionally performed.

  As described above, there are various methods for taking out resources from the storage battery 100. For example, after destroying the storage battery 100 with a slitter, this is incinerated, and the remaining metal is separated by specific gravity to obtain a desired metal. Is recovered.

  Patent Document 2 (Japanese Patent Application Laid-Open No. 61-11191) discloses a cutting / separation processing apparatus that can recover resources from members constituting a storage battery by cutting and separating a cylindrical storage battery. It is disclosed.

  In the cutting / separating device of Patent Document 2, the storage battery is arranged in the vertical direction, and the outer cylinder portion of the storage battery is hooked on a die, and in this state, the upper end portion of the storage battery is pressed from above to below. Thus, the inside of the outer cylinder is pushed downward.

  At this time, a cutter is disposed below the die so as to come into contact with the outer peripheral portion of the outer cylinder of the pushed-down storage battery. By pushing down the inside of the outer cylinder, the cutter cuts the outside of the storage battery. The inside of the cylinder is configured to be cut in the vertical direction.

Thereby, each member which comprises a storage battery is isolate | separated, and it can collect | recover and recycle for every member.
Further, in Patent Document 3 (Japanese Patent No. 4358489), a plurality of cuts are made in the outer can of the cylindrical storage battery from the upper end to the lower end of the outer can, and the plurality of outer cans are pushed radially. A method of spreading and recovering the internal electrode body by separating it from the outer can is disclosed.

  Patent Document 4 (Japanese Patent Application Laid-Open No. 08-037039) proposes a method that can easily and reliably peel off a cap of a waste NaS battery used for mass storage of electric power and the like without requiring manual labor. ing.

  That is, in the method of Patent Document 4, an annular notch is made on the outer periphery of the cap while rotating the waste NaS battery around its central axis, and a claw is inserted into the annular notch. A method of removing the cap by moving it in the axial direction is disclosed.

  Disassembling the storage battery using the method and apparatus as described above and taking out the electrode body from the enclosed container is indispensable for research and development of the storage battery, and also in terms of recycling the storage battery. Indispensable.

Japanese Patent Application No. 2009-041303 JP 61-11191 A Japanese Patent No. 4358489 Japanese Patent Application Laid-Open No. 08-037039

However, in the decomposition apparatus described in Patent Document 1, chips generated during cutting of the enclosure may enter the enclosure and adhere to the electrode body.
The structure of a storage battery such as a lithium ion battery has a structure that prevents foreign matter from entering the electrode body even if foreign matter such as metal powder is mixed during manufacture. If it enters, there is a risk of overheating and an internal short circuit.

For this reason, a suction machine is separately provided so that chips do not adhere to the electrode body, and the enclosure is cut while suctioning the chips.
However, even in this case, it is difficult to completely remove the chips, and an operation of sucking the chips adhering to the electrode body after cutting is necessary.

The state in which the chips adhere to the electrode body in this way is not preferable in disassembling the storage battery, and it is impossible to determine whether the metal pieces are attached at the time of manufacture.
Furthermore, when such a decomposition apparatus needs to be placed in an atmosphere from which moisture has been removed, it does not require a large and expensive facility such as a dry room. It is preferable to arrange in a glove box.

  However, since the glove box has a limited space (for example, width 800 mm × height 600 mm × depth 600 mm), a cutting machine, a suction machine, and a pressurizer are disposed in the limited space. In order to handle these devices with both hands, the work is difficult and needs to be improved.

  In addition, the cutting / separation processing device described in Patent Document 2 is a device specialized for the separation processing of a storage battery having a specific structure, and is difficult to apply to storage batteries of other shapes and structures, for example. It was.

  Moreover, in this cutting / separation processing apparatus, since the inside of the outer cylinder is directly cut with a blade, it cannot be used for taking out the electrode body from the enclosed container for the standard test, and can only be used for recycling. It was impossible.

  Furthermore, in the method described in Patent Document 3, since the cutting beyond the thickness of the enclosing container is performed, it is inevitable that chips generated at the time of cutting adhere to the electrode body. It was something that could only be used.

  The method described in Patent Document 4 is a method for treating a discarded NaS battery, which is a special battery, and is difficult to apply to, for example, storage batteries of other shapes and structures. The method also discloses a method of removing sodium and sulfur existing in the cartridge by removing the cap and opening the sealed container.

  However, although it has been disclosed to open the sealed container, there is no mention of how to remove other members such as electrode bodies. That is, in this method, even if the cap is removed, there is no grip allowance for gripping the electrode body, so it is difficult to remove the electrode body from the enclosure.

In addition, in this method, the electrode body cannot be taken out as it is, so that it is impossible to perform a standard test such as a forced internal short circuit test.
Furthermore, this method requires a special and large device for making an annular cut on the outer periphery of the cap, inserting a claw into the annular cut, and moving the cap in the axial direction of the waste NaS battery to peel off the cap. In a storage battery such as a lithium ion battery, it is difficult to place the battery in a limited space such as a glove box under an inert atmosphere.

  In view of such a current situation, the present invention can safely and reliably take out the electrode body from the enclosed container when disassembling a fully charged storage battery, such as a forced internal short circuit test, and is inactive. A method for disassembling a storage battery that is easy to disassemble in a working room in a gas atmosphere and that is easy to separate after disassembly and has good recyclability, a storage battery disassembly device therefor, a storage battery and a method for manufacturing the storage battery, and a storage battery manufacture An object of the present invention is to provide a container body.

The present invention was invented in order to achieve the above-described problems and objects in the prior art, and the method for disassembling a storage battery according to the present invention includes:
Disassembling a storage battery in which an electrode body is enclosed in an enclosure, and a method for disassembling the storage battery for taking out the electrode body from the enclosure,
A grooving step for breaking to provide a groove for breaking not penetrating to the inside of the sealed container on the outer surface of the container body of the sealed container of the storage battery,
By applying an external force to the enclosure, the enclosure container breaking step for breaking and opening the enclosure from the breaking groove;
A sealed container separating step for exposing the electrode body by moving the sealed container broken in the sealed container breaking step in a direction away from the sealed container;
An electrode body gripping step for gripping the electrode body exposed by the enclosure container separation step;
And an electrode body taking-out step of taking out the electrode body from the enclosing container by moving the electrode body and the enclosing container away from each other with the electrode body held.

Further, the storage battery disassembly device of the present invention comprises:
A storage battery disassembling device for disassembling a storage battery in which an electrode body is sealed in a sealed container and taking out the electrode body from the sealed container,
A breaking grooving mechanism for providing a breaking groove that does not penetrate to the inside of the sealed container on the outer surface of the sealed container body of the storage battery,
A sealed container breaking mechanism that breaks and opens the sealed container from the breaking groove by applying an external force to the sealed container;
A sealed container separating mechanism for exposing the electrode body by moving the sealed container broken by the sealed container breaking mechanism in a direction away from the sealed container;
An electrode body gripping mechanism for gripping the electrode body exposed by the enclosure separation mechanism;
An electrode body taking-out mechanism for taking out the electrode body from the enclosing container by moving the electrode body and the enclosing container away from each other while holding the electrode body by the electrode body grasping mechanism. .

  By configuring in this way, the breaking groove provided in the enclosure is deep enough not to penetrate into the enclosure, and the enclosure does not open, so that chips may be mixed inside the enclosure. Therefore, the grooving step for fracture can be performed in the atmosphere.

  For this reason, the breaking grooving step is limited in size and does not need to be performed in an inert gas atmosphere having poor workability, such as a working chamber (glove box) in an argon atmosphere. Therefore, work efficiency can be improved, and other devices arranged in the glove box can be simplified.

  That is, in the conventional apparatus, since cutting is performed, it is necessary to arrange a suction machine for sucking chips in a glove box with a limited inert gas atmosphere. This is not necessary at all, and in particular, the apparatus disposed in the glove box in an inert gas atmosphere can be simplified.

  In addition, in the enclosure container breaking step, for example, the enclosure container is gripped at the break groove and a tensile load is applied to the enclosure as an external force, so that the material strength (tensile strength) is applied to the break groove having the weakest strength. By generating the above stress, the enclosure can be forcibly broken from the breaking groove and opened.

  For this reason, unlike cutting and the like, no chips are generated, so there is no possibility that the chips adhere to the electrode body and cause a short circuit. For this reason, it is suitable for obtaining an electrode body from a charged storage battery in order to perform a standard test such as a forced internal short circuit test.

  Further, in the sealed container separating step, the electrode body is exposed by holding the sealed container broken by the breaking groove and moving the broken sealed containers away from each other. Moreover, in this case, since the breaking groove is provided on the outer surface of the container body of the storage container of the storage battery, there is a grip allowance for gripping the electrode body with the electrode body exposed. In the body gripping step, the electrode body can be gripped, and in the electrode body taking out step, the electrode body can be taken out from the enclosure without being damaged or damaged.

  For this reason, a standard test such as a forced internal short circuit test can be reliably performed on the extracted electrode body, and it is easy to disassemble, and can be separated and recovered to recycle resources.

  In this case, the distance for separating the sealed containers from each other may be any distance that can grip the electrode body, and since the sealed container is already gripped in the previous electrode body gripping step, There is no need to rework, and the process can be simplified.

  Further, in this case, the apparatus used for the enclosure container breaking step and the enclosure container separating process may be the same. In this case, the apparatus disposed in the glove box can be further simplified.

  Further, in the electrode body take-out step, the current collecting tab (positive electrode tab) that is folded and accommodated by holding the exposed electrode body and moving the sealed container separated from the electrode body away from each other. And the negative electrode tab) are stretched and a tensile load is applied, whereby the current collecting tab can be broken and the electrode body can be taken out from the enclosure.

  Therefore, it is possible to take out an electrode body in a clean state (with a current collecting tab) that retains its shape from the enclosed container, so that the standard test such as a forced internal short circuit test can be performed on the taken out electrode body. Can be surely performed, and is easy to disassemble, and can be separated and collected to recycle resources.

  Furthermore, since the series of steps from opening the sealed container to taking out the electrode body has been simplified, work in the glove box can be easily performed, and the device disposed in the glove box is simplified. And can be easily automated.

Moreover, the method for disassembling the storage battery of the present invention is as follows.
Disassembling a storage battery in which an electrode body is enclosed in an enclosure, and a method for disassembling the storage battery for taking out the electrode body from the enclosure,
By applying an external force to the enclosure, the enclosure container breaking step for breaking and opening the enclosure from the breaking groove;
A sealed container separating step for exposing the electrode body by moving the sealed container broken in the sealed container breaking step in a direction away from the sealed container;
An electrode body gripping step for gripping the electrode body exposed by the enclosure container separation step;
And an electrode body taking-out step of taking out the electrode body from the enclosing container by moving the electrode body and the enclosing container away from each other with the electrode body held.

Further, the storage battery disassembly device of the present invention comprises:
A storage battery disassembling device for disassembling a storage battery in which an electrode body is sealed in a sealed container and taking out the electrode body from the sealed container,
A sealed container breaking mechanism that breaks and opens the sealed container from the breaking groove by applying an external force to the sealed container;
A sealed container separating mechanism for exposing the electrode body by moving the sealed container broken by the sealed container breaking mechanism in a direction away from the sealed container;
An electrode body gripping mechanism for gripping the electrode body exposed by the enclosure separation mechanism;
An electrode body taking-out mechanism for taking out the electrode body from the enclosing container by moving the electrode body and the enclosing container away from each other while holding the electrode body by the electrode body grasping mechanism. .

Moreover, the method for disassembling the storage battery of the present invention is as follows.
The storage battery is a storage battery in which a fracture groove that does not penetrate to the inside of the enclosure is provided in advance on the outer surface of the enclosure body of the enclosure.

Further, the storage battery disassembly device of the present invention comprises:
The storage battery is configured to use a storage battery in which a fracture groove that does not penetrate to the inside of the enclosure is provided in advance on the outer surface of the enclosure body of the enclosure.

The storage battery of the present invention is characterized in that a breaking groove that does not penetrate to the inside of the enclosure is provided in advance on the outer surface of the enclosure body of the enclosure.
In this way, if the storage battery, that is, the storage battery manufactured and sold as a product is a storage battery in which a breaking groove that does not penetrate to the inside of the enclosure is provided in advance on the outer surface of the enclosure body, the breaking groove The insertion mechanism (breaking grooving step) becomes unnecessary.

Therefore, for example, in a university or a research institution, a method for disassembling a storage battery can be carried out even in a place that does not have a breaking grooving mechanism such as a lathe.
In addition, since the breaking grooving mechanism (breaking grooving step) is unnecessary, the process is simplified and the storage battery can be efficiently disassembled.

And since it is not necessary to provide the grooving mechanism for a fracture | rupture as a decomposition device of a storage battery, a compact storage device of a storage battery can be provided.
By the way, in the breaking grooving mechanism (breaking grooving step) described above, a breaking groove may be provided for the storage battery in which the electrode body is enclosed in the enclosure, but the breaking battery is used for breaking the sealed battery. If a groove is provided, if the container body is plated as a surface treatment, the plating will be peeled off, and when used as a storage battery for a long period of several years, the fracture groove will corrode and electrolysis will occur from the corroded part. The liquid may leak.

For this reason, in the manufacturing process of the container body, this problem can be solved by providing a breaking groove in the container body in advance and plating the container body as usual.
Therefore, it is desirable that the breaking grooving step be performed in the manufacturing process of the container body. That is, as a member used for the production of a storage battery, just by supplying a container body for producing a storage battery that is provided with a breaking groove in advance, a conventional storage battery production facility is used for producing a storage battery that is provided with a breaking groove in advance. Since the electrode body can be inserted into the container body, injected, and sealed, a storage battery provided with a breaking groove in advance can be easily manufactured.

Therefore, the manufacturing method of the storage battery of the present invention is:
A method of manufacturing a storage battery,
A container body is used in which a fracture groove that does not penetrate to the inside of the sealed container is provided on the outer surface of the sealed container body in advance.

In addition, the container body for producing a storage battery of the present invention is
A breaking groove that does not penetrate to the inside of the enclosure is provided in advance on the outer surface of the enclosure body of the enclosure.

  In addition, when providing a gripping groove for facilitating gripping of the enclosing container described later, a gripping groove may be provided for the storage battery in which the electrode body is enclosed in the enclosing container, as described above. If the storage groove is provided in the storage battery after sealing, if the container body is plated as a surface treatment, the plating will peel off, and the storage groove will corrode when used as a storage battery for a long period of several years. In addition, the electrolytic solution may leak from the corroded portion.

For this reason, in the manufacturing process of the container main body, this problem can be solved by providing a holding groove in the container main body in advance and plating the container main body as usual.
Moreover, the method for disassembling the storage battery of the present invention is as follows.
Before the enclosure container breaking step, the enclosure container holding step for holding one side and the other side of the enclosure container with the breaking groove of the enclosure container as a boundary,
In the enclosure container breaking step, an external force is applied to the enclosure container while the enclosure container is held, whereby the enclosure container is broken and opened from the breaking groove.

Further, the storage battery disassembly device of the present invention comprises:
Before the enclosure container breaking mechanism, provided with an enclosure container gripping mechanism for grasping one side and the other side of the enclosure container with the breaking groove of the enclosure container as a boundary,
The enclosure container breaking mechanism is characterized in that an external force is applied to the enclosure container while the enclosure container is held, whereby the enclosure container is broken and opened from the breaking groove.

  In this way, by holding the one side and the other side of the enclosing container with the breaking groove as a boundary, for example, by applying twisting, bending, tensile load, etc. as external force to the enclosing container, Stress exceeding the material strength can be generated in the groove, and the enclosure can be forcibly broken from the breaking groove and opened.

  For example, when the external force applied to the enclosure is a compressive load, there is no need to grip one side and the other side of the enclosure as described above, and the center from one end and the other end of the enclosure Compress in the direction.

Moreover, the method for disassembling the storage battery of the present invention is as follows.
In the enclosure container breaking step,
The external force applied to the enclosure container for breaking from the breaking groove of the enclosure container is any one of tension, compression, twisting, bending, or a combination of at least two of these. Features.

  By configuring in this manner, in the enclosure container breaking step, for example, a tensile load can be applied to the enclosure container as an external force by moving in the direction of separation while holding the enclosure container with the breaking groove as a boundary. In addition, the encapsulating container can be forcibly broken from the breaking groove and opened easily by generating a stress higher than the material strength (tensile strength) in the breaking groove having the weakest strength.

For this reason, since the direction in which the enclosing container is separated becomes tensile, the external force that breaks the enclosing container is the easiest to pull in consideration of workability and apparatus.
However, as in the case of the tensile load, the enclosure can be broken from the breaking groove by applying any one of compression, twisting, and bending as an external force.

Moreover, even if these at least two or more external forces are combined, for example, even when the sealed container is pulled while being twisted, the sealed container can be similarly broken by the breaking groove.
Moreover, the method for disassembling the storage battery of the present invention is as follows.
The position where the breaking groove is provided is provided at a position where the electrode body exposed from the enclosing container in the enclosing container separating process can be gripped in the electrode body gripping process.

The storage battery of the present invention is
The break groove is provided at a position where the electrode body exposed from the enclosure can be gripped.

  As described above, the electrode body is exposed in a state where the electrode body is exposed by providing the electrode body exposed from the enclosing container in the enclosing container separation process at a position where the electrode body is exposed in the electrode body grasping process. Since there is a gripping allowance for gripping, the electrode body can be gripped in the electrode body gripping step, and the electrode body is taken out from the enclosing container as it is without being damaged or damaged in the electrode body picking step. be able to.

  In this case, the position where the breaking groove is provided on the outer side surface of the container body of the enclosing container is not particularly limited as long as the electrode body can be gripped in the electrode body gripping step. With the center of the length of the storage battery as a boundary, in the case of a cylindrical storage battery, it should be provided closer to the bottom side of the outer surface of the enclosure, and in the case of a quadrangular prism storage battery, it should be provided closer to the lid of the enclosure Is preferred.

  However, if the position of the breaking groove is extremely provided on the bottom side or the lid side of the enclosure, the electrode body is not exposed or the exposed length is short, so the electrode body cannot be gripped, Since it becomes impossible to take out the electrode body from the sealed container, a position where there is a grip allowance for gripping the electrode body with the electrode body exposed may be appropriately selected.

Moreover, the method for disassembling the storage battery of the present invention is as follows.
The breaking groove is provided substantially parallel to both end faces of the storage battery.
The storage battery of the present invention is
The breaking groove is provided substantially parallel to both end faces of the storage battery.

In this way, by providing the breaking groove substantially parallel to both end faces of the storage battery, it can be easily processed with a lathe or a milling cutter.
Further, when an external force is applied to the breaking groove of the enclosure, the breaking groove can be effectively broken.

  In this case, the shape of the breaking groove may be a concave groove or an angled groove. Also, the width of the groove is not limited to the function as a breaking groove, as will be described later, for example, when the enclosing container is pulled and broken, so that it can be hooked as a gripping groove to play a role of slip prevention. The width may be increased.

  Furthermore, the depth of the breaking groove may be set to such an extent that the enclosure does not penetrate in consideration of the dimensional accuracy of the outer surface of the enclosure body of the enclosure. Although the groove may be extremely deep, if the container body is broken or cracked from the container body by pulling or dropping the container body by hand, the battery must be transported to the next process. There is a risk that the enclosing container may be opened by mistake.

For this reason, it is preferable that the breaking groove has a certain degree of strength and has a groove depth that can be broken by a large external force such as a screw or an air cylinder.
Further, the length of the breaking groove may be continuously connected to the outer surface of the enclosing container over the entire circumference or may be intermittently cut.

  As described above, if the length of the breaking groove is continuously connected to the outer surface of the container body of the enclosing container over the entire circumference, the breakage easily occurs from any part, and the enclosing container is surely attached. The storage battery can be disassembled by breaking. In addition, even if the length of the breaking groove is intermittently cut, it is first broken from the portion where the breaking groove is formed, and other portions are also broken together. The enclosure can be reliably broken and the storage battery can be disassembled.

Moreover, the method for disassembling the storage battery of the present invention is as follows.
Before the enclosure container gripping step,
A gripping grooving step is provided in which a gripping groove for facilitating gripping of the sealed container is provided on the outer surface of the sealed container substantially parallel to the fracture groove.

Moreover, the method for disassembling the storage battery of the present invention is as follows.
The storage battery is a storage battery in which a gripping groove for facilitating gripping the sealed container is provided in advance on the outer surface of the sealed container in substantially parallel to the fracture groove.

The storage battery of the present invention is
A gripping groove for facilitating gripping the sealed container is provided in advance on the outer surface of the container body of the sealed container in substantially parallel to the fracture groove.

If the holding groove is provided in the enclosing container as described above, when the one end and the other end of the enclosing container are held and pulled, the portion of the holding groove functions as a slip stopper.
Therefore, in the enclosure container breaking step, there is no slip between the gripping means and the enclosure, and the storage battery can be disassembled by reliably breaking the enclosure.

  In this case, in order to make the gripping groove stronger than the breaking groove, for example, the depth thereof is made shallower than the breaking groove, or the length of the breaking groove is cut intermittently. What is necessary is just to form.

Moreover, the method for disassembling a storage battery according to the present invention is characterized in that the breaking groove of the enclosing container is also used as a grasping groove for facilitating grasping of the enclosing container.
In this way, the breaking groove of the enclosing container not only functions as a breaking groove, but also as a grasping groove for facilitating the grasping of the enclosing container, so that it can be hooked and serve as a slip stopper. It may be widened.

Moreover, the method for disassembling the storage battery of the present invention is as follows.
In the electrode body removal step,
The current collecting tab is detached from the enclosing container by separating the current collecting tab from the enclosing container.

  In this case, the current collecting tab, for example, the negative electrode tab having a strong joint with the enclosing container is connected to the negative electrode tab by separating the current collecting tab from the enclosing container using a cutting tool or the like. It is possible to prevent the negative electrode mainly composed of copper foil from being broken and damaging the electrode body. Thereby, since voltage measurement can be easily performed from the current collecting tab with respect to the extracted electrode body, a standard test such as a forced internal short-circuit test can be reliably performed.

Moreover, the method for disassembling the storage battery of the present invention is as follows.
In the electrode body removal step,
The electrode body is removed from the enclosing container by moving the enclosing container and the electrode body in a state where the current collecting tab is held together with the electrode body.

  In this way, since the current collecting tab is gripped together with the electrode body, even when an external force is applied to the breaking groove of the enclosing container, the joined portion with the current collecting tab, for example, the enclosing container Even if the negative electrode tab is strong, before the joint between the negative electrode tab and the enclosure is broken, the negative electrode mainly composed of the copper foil connected to the negative electrode tab is broken and the electrode body is damaged. Can be prevented. Moreover, the cutting process of cutting the current collecting tab with a cutting tool or the like can be omitted, and the electrode body can be taken out from the enclosure with the current collecting tab attached.

Moreover, the method for disassembling the storage battery of the present invention is as follows.
The breaking groove is a breaking groove in which a plurality of breaking grooves are provided apart from each other.

The storage battery of the present invention is
The breaking groove is a breaking groove in which a plurality of breaking grooves are provided apart from each other.

  Thus, by providing a plurality of breaking grooves apart from each other, for example, in the case of a quadrangular prism-shaped storage battery, the first breaking breaker for cutting the current collecting tab on the lid member side of the enclosure A groove and a second breaking groove for exposing the electrode body can be provided on the bottom side of the enclosure. Thus, after breaking the first breaking groove and cutting the current collecting tab, the second breaking groove is broken, the electrode body is exposed and gripped, and the electrode body is removed from the enclosure. Can do.

Moreover, the method for disassembling a storage battery according to the present invention is characterized in that the storage battery has either a cylindrical shape or a quadrangular prism shape.
If it is a storage battery which has such a form, it is suitable for using for the decomposition | disassembly method of the storage battery of this invention.

In the method for disassembling a storage battery according to the present invention, the storage battery is a charged storage battery.
Thus, even if the storage battery is a charged storage battery, the method for disassembling the storage battery of the present invention can be applied, and a standard test such as a forced internal short-circuit test is reliably performed on the extracted electrode body. In addition, the method for disassembling a storage battery according to the present invention is characterized in that at least the enclosure container breaking step is performed in a working chamber in an inert gas atmosphere.

  Thus, by performing at least the enclosure container breaking step in a working chamber in an inert gas atmosphere, for example, when disassembling a fully charged storage battery, the disassembly operation can be performed safely.

  According to the present invention, first, a fracture groove that does not penetrate to the inside of the sealed container is provided on the outer surface of the sealed container in the atmosphere, and thereafter, in an atmosphere of an inert gas working chamber, for example, The enclosure can be broken and opened from the breaking groove by gripping the enclosure with the breaking groove as a boundary and applying an external force such as a tensile load.

  Next, the broken enclosure is moved and separated in a direction away from each other, the electrode body is exposed, the exposed electrode body is held, and the separated enclosure is moved away from each other. As a result, the storage battery can be taken out of the enclosing container, so that the electrode body can be taken out in a state where the shape is easily and safely maintained without causing a short circuit.

For this reason, when performing a forced internal short circuit test, the fully charged storage battery can be disassembled safely and easily, and the standard test can be performed safely and reliably.
Furthermore, when disassembling a fully charged storage battery, the work is performed in a working chamber in an inert gas atmosphere. In this case as well, only the gripping means and the moving means need to be disposed in the working chamber. Therefore, the disassembly work can be performed efficiently.

  Further, since the electrode body can be taken out from the enclosed container while maintaining its shape, the taken-out electrode body can be sorted for each member, and the resource can be recycled easily and quickly.

FIG. 1 is a schematic configuration diagram of a storage battery decomposition apparatus used in the storage battery decomposition method of the present invention. FIG. 2 shows a cylindrical storage battery to be disassembled in an embodiment of the storage battery disassembling method and storage battery disassembling apparatus therefor according to the present invention. FIG. 2 (a) is a front view, FIG. ) Is a longitudinal sectional view. FIG. 3 is a schematic diagram for explaining the configuration of the breaking grooving step of the storage battery disassembling method of the present invention and the breaking grooving mechanism of the storage battery disassembling apparatus therefor. FIG. 4 is a front view of a storage battery in which a breaking groove is formed by a breaking grooving mechanism in the breaking grooving step of the storage battery disassembling method of the present invention, and FIG. 4 (a) is a breaking groove. However, FIG. 4B is a front view of a storage battery formed in a straight line and continuously connected to the outer surface of the enclosing container over the entire circumference. FIG. It is a front view of the storage battery formed in the state cut into two. FIG. 5 is a schematic diagram illustrating the configuration of the enclosure container breaking step of the storage battery disassembly method of the present invention and the structure of the enclosure container breaking mechanism of the storage battery decomposition apparatus therefor. FIG. 6 is a schematic diagram for explaining a configuration of an electrode body taking-out step of the storage battery disassembling method of the present invention and an electrode body taking-out mechanism of the storage battery disassembling apparatus therefor. FIG. 7 is an exploded view for explaining a state in which the storage battery is disassembled according to the embodiment of the present invention. FIG. 8 is a schematic diagram for explaining an external force applied to the enclosure 101 in the grooving step for fracture, and FIG. 8A is a schematic diagram when the external force is a tensile load, and FIGS. (C) has shown the schematic when an external force is a compression load. FIG. 9 is a schematic diagram for explaining the external force applied to the enclosure 101 in the breaking grooving step, FIG. 9A is a schematic diagram when the external force is a torsional load, and FIG. 9B is an external force. The schematic diagram in case where is a bending load is shown. FIG. 10 is a schematic diagram illustrating the configuration of a sealed container separation mechanism 30 (a sealed container separation process) and an electrode body removal mechanism 40 (an electrode body removal process) according to another embodiment of the present invention. FIG. 11 is a schematic diagram illustrating the configuration of a sealed container separation mechanism 30 (a sealed container separation process) and an electrode body take-out mechanism 40 (an electrode body take-out process) according to another embodiment of the present invention. FIG. 12 is a schematic diagram illustrating the configuration of a sealed container separation mechanism 30 (a sealed container separation process) and an electrode body take-out mechanism 40 (an electrode body take-out process) according to another embodiment of the present invention. FIG. 13 shows a storage battery having a quadrangular prism shape to be disassembled in an embodiment of the storage battery disassembly method and storage battery disassembly apparatus therefor according to the present invention. FIG. 13 (a) is a front view, FIG. (B) is a longitudinal cross-sectional view. FIG. 14 is a schematic diagram for explaining the configuration of the breaking grooving step of the storage battery disassembling method according to another embodiment of the present invention and the breaking grooving mechanism of the storage battery disassembling apparatus therefor. FIG. 15 is a front view of a storage battery in which a breaking groove is formed in the breaking grooving process, and further, a gripping groove is formed in the grasping grooving process, and FIG. FIG. 15B is a front view of a storage battery formed in a state where the holding groove is linearly connected continuously to the outer surface of the enclosing container over the entire circumference. FIG. 15B shows the breaking groove and the holding groove. It is a front view of the storage battery formed in the state cut | disconnected intermittently in partial linear form. FIG. 16 is a schematic diagram illustrating the configuration of the enclosure container breaking step of the storage battery disassembling method according to another embodiment of the present invention and the configuration of the enclosure container breaking mechanism of the storage battery decomposition apparatus therefor. FIG. 17 is a schematic diagram for explaining the configuration of the enclosing container separation step of the storage battery decomposing method according to another embodiment of the present invention and the enclosing container separating apparatus of the storage battery decomposing apparatus therefor. FIG. 18 is an exploded view for explaining a state in which a storage battery according to another embodiment of the present invention is disassembled. FIG. 19 is a schematic diagram illustrating the configuration of a sealed container separation mechanism 30 (a sealed container separation process) and an electrode body take-out mechanism 40 (an electrode body take-out process) according to another embodiment of the present invention. FIG. 20 is a schematic diagram illustrating the configuration of a sealed container separation mechanism 30 (a sealed container separation process) and an electrode body take-out mechanism 40 (an electrode body take-out process) according to another embodiment of the present invention. FIG. 21 is a schematic diagram illustrating the configuration of an enclosure container separation mechanism 30 (an enclosure container separation process) and an electrode body extraction mechanism 40 (an electrode body extraction process) according to another embodiment of the present invention. FIG. 22 is a schematic diagram illustrating a configuration of an embodiment of a storage battery decomposition method and a storage battery decomposition apparatus therefor according to another embodiment of the present invention. FIG. 23 is a schematic diagram illustrating the configuration of the grooving step for fracture of the method for disassembling a storage battery according to the present invention. FIG. 24 is a front view of a storage battery manufacturing container body 108 in which a breaking groove 132 is provided in advance as a member used when manufacturing a cylindrical storage battery. FIG. 24 (a) is a breaking groove 132. However, FIG. 24B is a front view of the container main body 108 formed in a straight line and continuously connected to the outer surface of the container main body 108 over the entire circumference. FIG. FIG. 6 is a front view of the container body 108 formed in an intermittently cut state. FIG. 25 is a front view of a storage battery manufacturing container main body 108 in which a fracture groove 132 and a gripping groove 134 are provided in advance as members used in manufacturing a quadrangular prism-shaped storage battery, and FIG. FIG. 25B is a front view of the container main body 108 in which the breaking groove 132 and the holding groove 134 are linearly connected continuously to the outer surface of the container main body 108 over the entire circumference. FIG. 4 is a front view of the container main body 108 in which the breaking groove 132 and the gripping groove 134 are formed in a partial line shape and intermittently cut. FIG. 26 is a partially cut and exploded perspective view for explaining the structure of a lithium ion battery (storage battery).

Hereinafter, embodiments (examples) of the present invention will be described in more detail with reference to the drawings.
The present invention provides, for example, a storage battery for use in an electronic device or the like, in which the electrode body, which is the contents in the enclosure, is taken out from the enclosure in a state that the shape is maintained even when the storage battery is charged. The present invention relates to a method for disassembling the battery and a battery disassembling apparatus therefor.

  As shown in FIG. 1, reference numeral 1 generally indicates a storage battery disassembly device used in the storage battery disassembly method of the present invention. The storage battery disassembly device 1 includes a breaking grooving mechanism 10, a sealed container breakage, and the like. A mechanism 20, a sealed container separation mechanism 30, and an electrode body extraction mechanism 40 are provided.

  Among these, the enclosure container breaking mechanism 20, the enclosure container separating mechanism 30, and the electrode body taking-out mechanism 40 are disposed in the working chamber 2 (for example, the glove box 2) in an inert gas atmosphere.

  In this embodiment, the enclosure container breaking mechanism 20, the enclosure container separating mechanism 30, and the electrode body taking-out mechanism 40 are disposed in the working chamber 2 in an inert gas atmosphere. It is desirable to arrange in the working chamber 2 in an atmosphere.

  Thus, by performing at least the enclosure container breaking step in a working chamber in an inert gas atmosphere, for example, when disassembling a fully charged storage battery, the disassembly operation can be performed safely.

  The reason for this is that, for example, when the storage battery 100 to be disassembled is charged, the electrolyte impregnated in the electrode body 103 may react and cause ignition or the like during the disassembly operation. This is to ensure the sex. Another reason is that the work is performed in a dry atmosphere from which moisture is removed, such as a dew point of −25 ° C. or lower.

If the discharged storage battery 100 is disassembled, there is almost no danger of ignition or the like, and therefore disassembly work in the atmosphere is possible.
On the other hand, the grooving mechanism 10 for breaking is not processed so as to penetrate from the outer surface of the container body 108 of the enclosing container 101 of the storage battery 100 to the inside, as will be described later. The inside can be handled and it is not necessary to arrange in the glove box 2.

  However, for example, when a fully charged battery is disassembled as in a forced internal short circuit test, there is a risk of heat generation or ignition by accidentally inserting the groove deeply in the grooving step for fracture. For this reason, it is preferable to finish grooving or gripping using the discharged battery, and charging may be performed thereafter. Moreover, when performing the recycling which extracts the rare metal etc. which are contained in an electrode body, a storage battery should just discharge.

Below, the Example of FIGS. 1-6 is demonstrated about the decomposition | disassembly method of the storage battery of this invention, and the decomposition | disassembly apparatus of the storage battery for it.
In the storage battery decomposition apparatus 1 in this embodiment, as shown in FIG. 2, a storage battery having a cylindrical shape is to be decomposed.

  Such a cylindrical storage battery 100 is the same as that of the storage battery 100 described in the background art using the partially cut exploded perspective view of FIG. In FIG. 2, only the main members are shown for convenience of explanation.

In addition, the container main body 108 is a metal can, and in the case of the cylindrical storage battery 100, it is made of a steel material plated on the inner and outer surfaces.
First, the breaking grooving mechanism 10 (breaking grooving step) will be described.

  As shown in FIG. 3, the breaking grooving mechanism 10 is provided with a breaking groove 132 on the outer surface of the container main body 108 of the enclosure 101 of the storage battery 100 so as not to penetrate into the enclosure 101. Mechanism.

  As shown in FIG. 3A, the breaking grooving mechanism 10 as described above cuts and forms a breaking groove 132 on the outer surface of the fixing body 12 for fixing the storage battery 100 and the container body 108 of the storage battery 100. It is comprised from the processing machine 14 for.

  In this embodiment, in the cylindrical storage battery 100, as shown in FIG. 3A, the outer surface on the lid member 112 side of the container body 108 is fixed by the fixing tool 12, and the fixing tool 12 is fixed in this state. By rotating and bringing the blade 16 into contact with each other, a breaking groove 132 is formed on the outer surface of the container body 108 of the sealed container 101 as shown in FIG.

  Although it does not specifically limit as the processing machine 14 used here, In the cylindrical storage battery 100 like this Example, a lathe is used as the processing machine 14, and the outside of a storage battery is used as the fixing tool 12. A collet chuck matching the diameter is prepared, and the cutting groove 132 is formed using a cutting tool as the cutting tool 16.

  In addition, it is desirable that the depth of the groove for breaking 132 is set so as not to penetrate the container body 108 of the enclosure 101 in consideration of the dimensional accuracy of the outer surface of the container body 108 of the enclosure 101.

  Thereby, chips generated by cutting or the like do not enter the enclosure 101 and do not adhere to the electrode body 103. Further, since the enclosing container 101 is not opened, the fracture grooving step can be performed in the atmosphere. Note that chips attached to the enclosure 101 may be removed by air blowing or the like.

  For this reason, the grooving process for fracture does not need to be performed in an inert gas atmosphere having a poor workability, for example, the working chamber 2 (glove box 2) in an argon atmosphere, which has a limited size. Therefore, work efficiency can be improved, and other devices arranged in the glove box can be simplified.

  That is, in the conventional apparatus, since cutting is performed, it is necessary to arrange a suction machine for sucking chips in a glove box with a limited inert gas atmosphere. This is not necessary at all, and in particular, the apparatus disposed in the glove box in an inert gas atmosphere can be simplified.

  Further, the position at which the breaking groove 132 is provided on the outer surface of the container body 108 is not particularly limited. However, in the breaking grooving process, the position at which the breaking groove 132 is provided is separated from the sealed container 101 by the sealed container separation process described later. It is desirable to provide the exposed electrode body 103 at a position where it can be gripped in the enclosure separation process.

  That is, in the cylindrical storage battery 100 as in this embodiment, as shown in FIGS. 3 and 4, the storage battery 100 is provided near the bottom side of the outer surface of the container body 108 with the center of the length of the storage battery 100 as a boundary. Is desirable.

  This is because an external force is applied to the container body 108 to forcibly break the container body 108 from the breaking groove 132, and the lid side 108A is separated from the electrode body 103, so that most of the electrode body 103 is removed from the container body 108. This is because it can be exposed.

  If the breaking groove 132 is extremely provided on the bottom side of the container body 108 or the lid member 112 side, the electrode body 103 is not exposed to the container body 108 or the exposed length is short. Become. As a result, the electrode body 103 cannot be gripped, and the electrode body 103 cannot be taken out from the container main body 108. Therefore, the position where the breaking groove 132 is provided is to grip the electrode body 103 with the electrode body 103 exposed. What is necessary is just to select suitably the position where a grip margin exists.

  Further, it is desirable that the breaking groove 132 is provided substantially parallel to both end faces of the sealed container 101. In this way, by providing the breaking groove substantially parallel to both end faces of the storage battery, it can be easily processed with a lathe or a milling cutter. In addition, when an external force is applied to the breaking groove 132 of the enclosure 101, the breaking groove 132 can be effectively broken.

  In this case, the groove shape of the breaking groove 132 may be a concave groove or an angled groove as shown in FIG. The width of the groove is not limited to a function as a breaking groove, as will be described later, for example, when the enclosure 101 is to be pulled and broken, so that it can be hooked as a gripping groove to serve as a slip stopper. In addition, as shown in FIG. 23B, the width may be increased.

  In addition, the depth of the breaking groove 132 may be set so as not to penetrate the container body 108 in consideration of the dimensional accuracy of the outer surface of the container body 108. Although the groove may be extremely deep, if the container body 108 is broken or cracked from the container body 108 by pulling or dropping the container body 108 by hand, the storage battery 100 is When carrying to a process, there exists a possibility that the enclosure 101 may be opened accidentally.

For this reason, it is preferable that the breaking groove 132 has a certain degree of strength and has a groove depth that can be broken by a large external force such as a screw or an air cylinder.
Further, as shown in FIG. 4A, the length of the breaking groove 132 may be continuously connected to the outer surface of the container body 108 of the sealed container 101 over the entire circumference. As shown in b), it may be cut intermittently.

  In this way, if the length of the breaking groove 132 is continuously connected to the outer surface of the enclosing container over the entire circumference, the enclosing container 101 is surely broken because the breakage is likely to occur from any part. The storage battery 100 can be disassembled. In addition, even if the length of the breaking groove 132 is intermittently cut, it is first broken from the portion where the breaking groove 132 is formed, and other portions are also broken together. Therefore, the storage battery 100 can be disassembled by reliably breaking the sealed container 101.

  Next, in the grooving process for breaking, the storage battery 100 in which the breaking groove 132 is formed on the outer surface of the container body 108 has the enclosed container breaking mechanism 20 (encapsulated container breaking process as shown in FIG. 5). ).

  The enclosure container breaking mechanism 20 applies an external force to the enclosure container 101 while holding one side and the other side of the enclosure container 101 with the break groove 132 as a boundary, thereby causing the container body 108 to break the break groove 132. It is a mechanism for further breaking and opening.

Hereinafter, the side where the lid member 112 exists is referred to as the “lid side” and the side located at the bottom of the container body 108 opposite to the lid member 112 is referred to as the “bottom side”. Say.
As shown in FIG. 5, in the sealed container breaking mechanism 20, the lid side of the sealed container 101 is gripped by the gripping tool 22 and the bottom side is gripped by the gripping tool 26 with the breaking groove 132 as a boundary.

In this case, the gripping tools 22 and 26 are prepared in a cylindrical shape in accordance with the shape of the cylindrical enclosure 101, and are adjusted to the outer diameter.
In addition, in the enclosure container breaking mechanism 20 of this embodiment, as shown in FIG. 5 (a), the holding tool 22 for hooking and holding the locking piece 24 in the necking groove 130 on the lid side of the storage battery 100, and the breaking tool And a gripping tool 26 that hooks and holds the locking piece 28 in the breaking groove 132 formed in the grooving step.

  In this case, the gripping tools 22 and 26 are not particularly limited to those having the above-described configuration, and the sealed container 101 can also be gripped by a general collet chuck or vise.

  In this state, an external force is applied to the enclosure 101, and in the case of this embodiment, a tensile load is applied to break the enclosure 101 from the breaking groove 132 having the weakest material strength and open the container. At this time, as shown in FIG. 5B, the container body 108 is separated into the lid side 108A and the bottom side 108B.

  That is, the breaking groove 132 is hooked on the locking piece 28 of the gripping tool 26 and the locking piece 24 is hooked on the necking groove 130 in the gripping tool 22, and the gripping tool 26 is moved as shown in FIG. By fixing and moving the gripping tool 22 in the direction A, the container body 108 is broken by applying a tensile load.

  In the case of the cylindrical storage battery 100 as in this embodiment, the necking groove 130 is provided, so that it can be used as a gripping groove. The breaking groove 132 is used not only as a breaking groove but also as a gripping groove.

However, as shown in FIG. 23B, the width of the breaking groove 132 may be widened so that both the locking pieces 24 and 26 are hooked on the breaking groove 132.
In this embodiment, the gripping tool 26 is fixed and the other gripping tool 22 is moved. However, the present invention is not particularly limited, and both of them can be moved or both can be moved. There may be.

  Next, in the sealed container breaking step, the storage battery 100 opened by breaking the container main body 108 from the breaking groove 132 is sealed in the sealed container separation mechanism 30 as shown in FIGS. 5B and 5C. It is sent to (encapsulated container separation step).

  The sealed container separation mechanism 30 grips the lid side 108A and the bottom side 108B of the broken and separated container body 108 and moves them in directions away from each other (in the direction of arrow B). In this mechanism, the electrode body 103 is exposed by moving the side 108B away from each other.

  That is, in FIG. 5B, when the gripping tool 22 that is hooked and held by the locking piece 24 in the necking groove 130 is moved in the direction of arrow B, the electrode body 103 inside the enclosure 101 is exposed. Become so.

Further, the positive electrode tab 114 of the electrode body 103 joined to the lid member 112 is torn and cut in the vicinity of the lid member 112 when a tensile load is applied.
When the gripping tool 22 is further moved in the direction of arrow B, as shown in FIG. 5C, the electrode body 103 is completely exposed from the lid side 108A.

In this case, the distance separating the lid side and the bottom side of the container body 108 may be any distance that allows the electrode body 103 to be gripped.
It should be noted that another gripping tool may be provided to grip the lid side 108A and the bottom side 108B of the container main body 108, but since the gripping tools 22 and 26 have already gripped the sealed container breaking mechanism 20, Although not particularly limited, it is preferable not to newly use gripping means but to use the gripping tools 22 and 26 as they are.

  In this embodiment, the gripping tools 22 and 26 are used as they are, and the gripping tool 22 and the gripping tool 26 are moved away from each other, so that the distance between the lid side 108A and the bottom side 108B of the container body 108 is increased. Thus, the electrode body 103 is exposed.

In this case, since the container main body 108 has already been broken and separated, a force that can be pulled by hand is sufficient, a large force is not necessary, and a feed screw, an air cylinder, and the like are not necessary.
Although not particularly limited, in the sealed container breaking mechanism 20, the gripping tools 22 and 26 are already connected to moving means such as a feed screw and an air cylinder, and the gripping tool 22 and the gripping tool 26 are moved away from each other. In this case, it is not necessary to newly provide a moving means, and it is preferable to use it as it is. For this reason, in this embodiment, the moving means is the same as that of the sealed container breaking mechanism 20.

  Next, in the sealed container separation step, the storage battery 100 with the electrode body 103 exposed by moving the lid side 108A and the bottom side 108B of the broken container body 108 away from each other is shown in FIG. As shown in FIG. 4, it is sent to an electrode body take-out mechanism 40 (electrode body take-out step).

  The electrode body take-out mechanism 40 holds the electrode body 103 exposed by separating the distance between the lid side 108A and the bottom side 108B in the sealed container separation mechanism 30, and the electrode body 103 and the remaining container main body 108. It is comprised so that it may move apart from the bottom side 108B.

  Thus, the current collecting tabs (the positive electrode tab 114 and the negative electrode tab 110) folded and housed in the enclosing container 101 are pulled and broken to pull out the electrode body 103 from the enclosing container 101.

  That is, as shown in FIG. 6 (a), when the electrode body 103 is gripped by the gripping tool 42 and moved in a direction away from the sealed container 101 (direction of arrow C), FIG. As shown in FIG. 5, the electrode body 103 is detached from the sealed container 101, and the negative electrode tab 110 connected to the container bottom of the sealed container 101 is torn off near the container bottom.

  In this case, although not particularly limited, in this embodiment, the bottom side 108B of the container body 108 of the sealed container 101 is also separated by the gripper 26 in the sealed container separation mechanism 30 in the electrode body take-out mechanism 40. Since it is already gripped, it is not necessary to grip again, so the gripping tool 26 is used as it is.

  In addition, since the negative electrode tab 110 is joined to the negative electrode 104 mainly composed of copper foil, if the electrode body 103 is simply moved in the direction away from the enclosure 101 (direction of arrow C), the copper tab The foil may be torn.

  Therefore, as shown in FIG. 6A, when the electrode body take-out mechanism 40 is operated, the negative electrode tab 110 portion is gripped by the gripping tool 42 together with the electrode body 103, and in this state, the gripping tool 42 is enclosed in the enclosing container. It is preferable to move in a direction away from 101 (in the direction of arrow C) so that the container bottom side of the negative electrode tab 110 is cut.

  As a result, as shown in FIG. 7, the storage battery 100 in which the electrode body 103 is sealed inside the sealed container 101 is formed between the lid side 108A and the bottom side 108B of the container body 108 with the breaking groove 132 as a boundary. The separated enclosure 101 and the internal electrode body 103 are separated.

  When the disassembled storage battery 100 is classified and recycled for each member, the electrode body 103 taken out from the enclosed container 101 is separately disassembled, for example, so that resources such as rare metals can be easily and reliably removed. Can be collected separately.

When a standard test is performed using the extracted electrode body 103, the test may be performed according to a procedure corresponding to each test.
For example, in the case of a JIS standard forced internal short circuit test (JIS C8714: 2007), the electrode body 103 taken out by disassembling the fully charged storage battery 100 is used.

  In this forced internal short-circuit test, the voltage of the extracted electrode body 103 is measured after a predetermined procedure. If the electrode body 103 is decomposed and extracted by the storage battery decomposition apparatus 1 of the present invention, the positive electrode Since the tab 114 and the negative electrode tab 110 are left, the voltage measurement can be reliably completed within a specified time.

  As described above, the storage battery disassembly device 1 and the storage battery disassembly method of the present invention can separate the members constituting the storage battery 100 because the electrode body 103 can be taken out from the enclosure 101 while maintaining the shape as described above. It is easy to recycle recyclable materials.

  The enclosure 101 is cut in a working chamber (for example, the glove box 2) in an inert gas atmosphere, and the enclosure 101 is divided into the internal electrode body 103. The electrode assembly 103 can be obtained safely and reliably, and the storage battery decomposing apparatus 1 and the storage battery disassembling method of the present invention are suitable for obtaining the electrode assembly 103 used for the standard test. .

  In the above embodiment, the tensile load is used as the external force applied to the sealed container 101 in the sealed container breaking step. However, the present invention is not limited to this. The external force applied to break more can be any of tension, compression, twisting, bending, or a combination of at least two of these.

FIG. 8A shows a schematic diagram when the external force is a tensile load.
In this case, the gripping tools 22 and 26 are moved away from each other and a stress greater than the material strength (tensile strength) is generated from the breaking groove 132 having the weakest strength, so that the container body 108 is moved from the breaking groove 132. Pull and break. Both the gripping tools 22 and 26 may move, or one side may be fixed. Further, the gripping tools 22 and 26 are connected to a feed screw, an air cylinder or the like, and can easily generate a force for breaking the container body 108.

FIGS. 8B and 8C are schematic views when the external force is a compressive load.
In this case, as indicated by arrows in FIGS. 8B and 8C, the gripping tools 22 and 26 are brought close to each other to generate a compressive stress in the breaking groove 132 so that the container body 108 is broken. Compressive fracture from the groove 132. Also in this case, both the gripping tools 22 and 26 may move, or one side may be fixed.

  As shown in FIG. 8C, when the external force is a compressive load, it is not necessary to grip the enclosure 101 with the gripping tools 22, 26, and the pressing member 22 ′ is not used without using the gripping tools 22, 26. , 26 ′, it is sufficient to pressurize both end faces of the enclosure 101. Further, the gripping tools 22 and 26 are connected to a feed screw, an air cylinder or the like, and can easily generate a force for breaking the container body 108.

FIG. 9A shows a schematic diagram when the external force is a torsional load.
In this case, as shown by the arrows in FIG. 9A, the container body 108 is removed from the breaking groove 132 by rotating the gripping tools 22 and 26 around the central axis of the sealed container 101 in directions opposite to each other. Torsion break. Both the gripping tools 22 and 26 may rotate, or one side may be fixed. Further, the gripping tools 22 and 26 are connected to a motor or the like, and can easily generate a force for breaking the container body.

FIG. 9B shows a schematic diagram when the external force is a bending load.
In this case, as shown by the arrow in FIG. 9B, the gripping tools 22 and 26 rotate around the fulcrum P, thereby generating a bending moment in the breaking groove 132 and breaking the container body 108. Bending and breaking from the groove for use 132. The gripping tools 22 and 26 may both rotate around the fulcrum P, or one side may be fixed.

The gripping tools 22 and 26 are connected to an air cylinder or the like via a link or a pin so as to be able to rotate around a fulcrum, and can easily generate a force for breaking the container body 108.
Regarding the bending load, if the position of the breaking groove 132 is formed in the central portion in the longitudinal direction of the sealed container 101 or the like, the electrode body is also bent together, so the vicinity of the lid member 112 or the container main body 108. It is desirable to form near the bottom of the can.

  Furthermore, although the case where the above-mentioned external force is single was demonstrated, even if these at least two or more external forces are combined, for example, even if the enclosure container 101 is pulled while being twisted, the enclosure container 101 is similarly broken into the breaking groove. It can be broken from 132.

  In order to finally take out the electrode body 103 from the enclosure 101, it is necessary to grip the electrode body 103. For this reason, it is necessary to move the lid side 108 </ b> A and the bottom side 108 </ b> B of the broken (separated) container main body 108 so as to be separated from each other and to expose the electrode body 103 from the container main body 108. For this reason, since the direction in which the broken (separated) container main body 108 is separated is the central axis of the sealed container 101, the external force for breaking the container main body 108 is the easiest to pull or compress in consideration of workability and equipment. It is preferable.

  In the storage battery decomposition apparatus (storage battery decomposition method) of this embodiment, the breaking grooving mechanism 10 (breaking grooving step) is provided. However, as the storage battery 100 to be used, the container main body 108 of the sealed container 101 is previously provided. By using the storage battery 100 provided with a breaking groove 132 that does not penetrate to the inside of the enclosure 101 on the outer surface of the container, it is possible not to provide the breaking grooving mechanism 10 (breaking grooving step). is there.

  In this way, the storage battery 100, that is, the storage battery 100 that is manufactured and sold as a product, is provided with a breaking groove 132 that does not penetrate to the inside of the enclosure 101 in advance on the outer surface of the enclosure body 108 of the enclosure 101. If it is 100, the breaking grooving mechanism 10 (breaking grooving step) becomes unnecessary.

Therefore, for example, in a university or a research institution, the method for disassembling the storage battery 100 can be performed even in a place where the grooving mechanism 10 for breaking such as a lathe is not provided.
In addition, since the breaking grooving mechanism 10 (breaking grooving step) is unnecessary, the process is simplified and the storage battery 100 can be efficiently disassembled.

And since it is not necessary to provide the grooving mechanism 10 for a fracture | rupture as a decomposition device of a storage battery, a compact storage device for a storage battery can be provided.
In this manner, as the storage battery 100 to be used, the storage battery 100 in which the breakage groove 132 that does not penetrate to the inside of the enclosure 101 is provided on the outer surface of the enclosure body 108 in advance is used. It is also possible not to provide the insertion mechanism 10 (breaking grooving step) in the following examples.

  By the way, in the breaking grooving mechanism 10 (breaking grooving step) described above, the breaking groove 132 may be provided in the storage battery 100 in which the electrode body 103 is enclosed in the enclosed container 101. When the storage battery 100 is provided with the breaking groove 132, when the container body 108 is plated as a surface treatment, the plating is peeled off, and when used as the storage battery 100 in a long period of several years, The groove 132 may corrode, and the electrolyte may leak from the corroded portion.

For this reason, in the manufacturing process of the container main body 108, this problem can be solved by providing the breaking groove 132 in the container main body 108 in advance and plating the container main body 108 as usual.
Therefore, it is desirable that the breaking grooving process is performed during the manufacturing process of the container body 108. That is, as a member used for manufacturing the storage battery, the container for manufacturing the storage battery 108 provided with the breaking groove 132 in advance is simply supplied, and the breaking groove 132 is provided in advance using the conventional storage battery 100 manufacturing equipment. Since the electrode body 103 can be inserted into the container body 108 for producing the storage battery, poured, and sealed, the storage battery 100 provided with the breaking groove 132 can be easily manufactured.

  FIG. 24 is a front view of a container body 108 for manufacturing a storage battery, which is a member used when manufacturing the cylindrical storage battery 100 provided with such a breaking groove 132 in advance, and FIG. FIG. 24B is a front view of the container main body 108 in which the breaking groove 132 is linearly connected continuously to the outer surface of the container main body 108 over the entire circumference. FIG. 132 is a front view of the container main body 108 formed in a state of being intermittently cut in a partial line shape.

  In addition, the material of the container main body 108 for manufacturing the storage battery, which is a member used when manufacturing the cylindrical storage battery 100, is not particularly limited, but, for example, a steel material subjected to nickel plating treatment Can be used.

FIG. 10 is a schematic diagram illustrating the configuration of a sealed container separation mechanism 30 (a sealed container separation process) and an electrode body removal mechanism 40 (an electrode body removal process) according to another embodiment of the present invention.
The enclosure container separation mechanism 30 and the electrode body take-out mechanism 40 of this embodiment are basically the same in configuration as the enclosure container separation mechanism 30 and the electrode body take-out mechanism 40 shown in FIGS. The same reference numerals are assigned to the members, and detailed description thereof is omitted.

  In this embodiment, in the grooving step for breaking, a breaking groove 132 is formed in the outer surface of the container main body 108 of the enclosing container 101 of the storage battery 100 at a substantially central portion in the longitudinal direction of the container main body 108. In addition, in the enclosure container breaking step, a tensile load is applied to the enclosure container 101 as an external force so that the enclosure container 101 is broken from the breaking groove 132 having the weakest material strength and opened.

  Then, as shown in FIG. 10A, in the sealed container separation mechanism 30, the lid side 108A and the bottom side 108B of the broken and separated container body 108 are gripped by the gripping tools 22 and 26, and separated from each other. The direction of movement (the direction of the arrow in FIG. 10A) is moved. As a result, the broken container main bodies 108A and 108B are moved away from each other to expose the electrode body 103.

  At this time, as shown in FIG. 10A, as a gripping means for the electrode body 103 that constitutes a part of the electrode body take-out mechanism 40, a pair of upper and lower grippers 42 that sandwich the exposed electrode body 103 from above and below. Is provided and is in a position separated from the exposed electrode body 103.

  Then, from this state, as shown by the arrow in FIG. 10B, the exposed electrode is moved by narrowing the distance between the pair of upper and lower gripping tools 42 constituting a part of the electrode body take-out mechanism 40. The outer surface of the body 103 is sandwiched.

  Next, as shown in FIG. 10 (c), the electrode body 103 exposed in this way is sandwiched between a pair of upper and lower gripping tools 42, and the lid side 108A and the bottom side 108B of the container body 108 are respectively connected. In the state of being gripped by the gripping tools 22 and 26, as shown by the arrow in FIG. 10C, the lid side 108A and the bottom side 108B of the container main body 108 are moved away from each other.

  As a result, as shown in FIG. 10C, the current collecting tabs (the positive electrode tab 114 and the negative electrode tab 110) folded and accommodated in the enclosure 101 can be broken by being pulled. That is, the positive electrode tab 114 and the negative electrode tab 110 are separated from the lid member 112 and the can bottom of the container main body 108 from the joint portion such as welding, respectively.

  Then, as indicated by the arrow in FIG. 10 (d), the lid side 108A and the bottom side 108B of the container body 108 are further moved away from each other. As a result, as shown in FIG. 10D, the storage battery 100 in which the electrode body 103 is sealed inside the sealed container 101 is separated from the lid side 108A and the bottom side of the container body 108 with the breaking groove 132 as a boundary. The sealed container 101 separated into 108B and the internal electrode body 103 are separated.

The electrode body 103 can be taken out without cutting the current collecting tab with a cutting tool or the like. The gripper 42 grips both the electrode body 103 and the negative electrode tab 110.
In this embodiment, a gripping tool 42 that is sandwiched between a pair of upper and lower gripping tools 42 is used as the gripping tool 42, but the gripping tool 42 is not particularly limited.

For example, the gripping tool 42 may be one that clamps the exposed outer surface of the electrode body from the left-right direction in addition to the one that is sandwiched from the vertical direction as in this embodiment.
Furthermore, in particular, in the cylindrical storage battery 100, since the negative electrode tab 110 is disposed on the outermost periphery, the gripping tool 42 has a shape that matches the outer diameter of the electrode body 103, and the entire electrode body 103 has a shape. It is preferable to grip both the electrode body 103 and the negative electrode tab 110 by gripping the outer peripheral surface.

  By doing in this way, since the negative electrode tab 110 is gripped by the gripper 42, a shear load is not applied to the joint portion where the electrode body 103 and the negative electrode tab 110 are joined by welding or the like.

  For this reason, if a tensile load is applied to the negative electrode tab 110 by moving the electrode body 103 away from the bottom side 108B of the container main body 108, the negative electrode tab 110 is not from the electrode body 103 but the container main body. It is possible to reliably remove from the bottom of 108 cans. Accordingly, a cutting tool and work for cutting the negative electrode tab 110 are not required.

  Further, since the positive electrode tab 114 of the cylindrical storage battery 100 is disposed near the center of the electrode body 103, even if the outer periphery of the electrode body 103 is gripped by the gripper 42, the positive electrode tab 114 cannot be gripped.

  However, when the bonding strength of the positive electrode tab 114 is compared with the bonding strength of the electrode body 103 and the bonding strength of the lid member 112, the bonding strength with the electrode body 103 is overwhelmingly stronger. It has a structure.

  Therefore, when a tensile load is applied to the positive electrode tab 114 by moving the electrode body 103 and the lid side 108A of the container body 108 away from each other, the positive electrode tab 114 is not from the electrode body 103 but the lid side 108A. It is possible to remove from.

  The positive electrode tab 114 and the lid member 112 are joined at a single point so that the positive electrode tab 114 and the lid member 112 are detached when an overcurrent occurs. It is joined to the positive electrode foil of the body 103 by several points, lines or surfaces.

  By the way, in the case of the purpose of recycling in which the rare metal is taken out from the electrode body 103, it does not matter whether the electrode body 103 has a current collecting tab. However, in the forced internal short circuit test, it is necessary to measure the voltage of the fully charged electrode body 103 taken out.

  If the current collector tabs (the positive electrode tab 114 and the negative electrode tab 110) are attached to the electrode body 103, the voltage of the electrode body 103 can be easily measured by simply connecting the current collector tab to the voltmeter using a clip or the like. be able to. If the electrode body 103 can be taken out from the enclosure 101 with the current collecting tab attached to the electrode body 103 as in this embodiment, the voltage of the electrode body 103 can be easily measured.

  FIG. 11 and FIG. 12 are schematic diagrams for explaining the configuration of a sealed container separating mechanism 30 (a sealed container separating step) and an electrode body retrieving mechanism 40 (an electrode body retrieving step) according to another embodiment of the present invention.

  The enclosure container separation mechanism 30 and the electrode body take-out mechanism 40 of this embodiment are basically the same in configuration as the enclosure container separation mechanism 30 and the electrode body take-out mechanism 40 shown in FIG. The same reference numerals are assigned and detailed description thereof is omitted.

  In this embodiment, in the same manner as the enclosure container separation mechanism 30 in the embodiment of FIG. 10, the longitudinal direction of the container body 108 is previously formed on the outer surface of the container body 108 of the enclosure 101 of the storage battery 100 in the grooving process for breaking. A breaking groove 132 is formed in a substantially central portion of the. In addition, in the enclosure container breaking step, a tensile load is applied to the enclosure container 101 as an external force so that the enclosure container 101 is broken from the breaking groove 132 having the weakest material strength and opened.

  Then, as shown by the arrow in FIG. 11A, in the sealed container separation mechanism 30, the container body 108 that has been broken and separated with the breaking groove 132 as a boundary by moving the gripping tools 22 and 26 away from each other. The electrode body 103 is exposed by separating the distance between the lid side 108A and the bottom side 108B.

Next, as shown by the arrow in FIG. 11B, the holding tool 26 side is fixed using the sealed container separation mechanism 30, and the holding tool 22 is moved away from the holding tool 26.
Thereby, by moving the lid side 108A of the container body 108 away from the electrode body 103, a tensile load is applied to the positive electrode tab 114, and the positive electrode tab 114 is pulled and broken from the lid side 108A.

Further, as indicated by the arrow in FIG. 11C, the gripping tool 22 is further moved to completely expose the electrode body 103 housed in the lid side 108A of the container body 108.
Next, as shown by the arrow in FIG. 12A, the exposed electrode body 103 is gripped using the gripping tool 42 of the electrode body take-out mechanism 40. In this case, the gripping tool 42 grips both the electrode body 103 and the negative electrode tab 110 (not shown).

  In this state, as indicated by the arrow in FIG. 12B, the gripping tool 42 is moved, and the electrode body 103 is moved away from the lid side 108B, thereby applying a tensile load to the negative electrode tab 110. Then, the negative electrode tab is pulled and broken from the bottom side 100B.

Further, as shown in FIG. 12C, the electrode assembly 103 can be taken out from the bottom side 108 </ b> B of the container main body 108 by further moving the gripping tool 42 in the arrow direction.
Below, the Example of FIGS. 13-18 is demonstrated about the decomposition | disassembly method of the another storage battery of this invention, and the decomposition | disassembly apparatus of the storage battery for it.

In this embodiment, the storage battery 100 having the quadrangular prism shape shown in FIG.
Such a storage battery 100 is basically composed of the same member as the cylindrical one shown in FIG. 2, but the cylindrical storage battery has a quadrangular prism shape as shown in FIG. Therefore, the electrode body 103 has a flat shape, the connection point of the negative electrode tab 110 is on the lid member 112 side, and the sealing container 101 has no necking groove 130. Note that in the quadrangular prism-shaped storage battery 100, the container body 108 is made of an aluminum material.

  In addition, as shown in FIG. 13B, the quadrangular prism-shaped storage battery 100 that is the object of this embodiment has a current collecting tab (a positive electrode tab 114, a negative electrode tab 110), a sealing member, and a lid member. 112 is joined by welding or the like.

  The current collecting tabs (the positive electrode tab 114 and the negative electrode tab 110) are joined to the electrode body 103 and the current collector foil by welding or the like. The current collecting tabs (the positive electrode tab 114 and the negative electrode tab 110) are arranged at the center of the electrode body 103.

Note that FIG. 13 also shows only main members for convenience of explanation.
Further, also in the storage battery 100 in this embodiment, the side where the lid member 112 exists is referred to as “lid side”, and the bottom side of the enclosure 101 opposite to the lid member 112 is referred to as “bottom side”.

  In such a quadrangular prism-shaped storage battery 100, as shown in FIG. 14A, in the grooving step for breaking, the outer surface on the bottom side of the container body 108 is fixed to the fixture 12 by the grooving mechanism 10 for breaking. Secure with.

  In this state, the cutting tool 16 of the processing machine 14 is brought into contact with the outer side surface on the lid side of the container main body 108 and rotated to move along the outer side surface of the container main body 108 of the enclosed container 101, so that the breaking groove 132 is formed. Formed.

  Next, as shown in FIG. 14 (b), the storage battery 100 in which the breaking groove 132 is formed is a fixture 12 of the breaking grooving mechanism 10 and, contrary to FIG. 14 (a), the container body The lid side of 108 is fixed.

  In this state, as shown in FIG. 14B, the blade 16 of the processing machine 14 is brought into contact with the outer surface on the bottom side of the container main body 108 as a gripping grooving mechanism and rotated to rotate the sealed container 101. By moving the container body 108 along the outer surface of the container body 108, as shown in FIG. 14C, the container body 108 is held on the outer surface on the bottom side of the container body 108 in parallel with the breaking groove 132. A groove 134 was formed.

The holding groove 134 is for hooking the locking piece 28 of the holding tool 26 in the sealed container breaking mechanism 20 as will be described later.
In this case, the processing machine 14 to be used is not particularly limited, but a milling machine is used for the processing machine 14, a vise is prepared for the fixture 12, and a cutting tool 16 is cut using a metal saw. Grooves 132 and gripping grooves 134 are formed.

  Further, the position at which the breaking groove 132 is provided on the outer surface of the container body 108 is not particularly limited. However, in the breaking grooving process, the position at which the breaking groove 132 is provided is separated from the sealed container 101 by the sealed container separation process described later. It is desirable to provide the exposed electrode body 103 at a position where it can be gripped in the enclosure separation process.

  That is, in the quadrangular prism-shaped storage battery 100 as in this embodiment, as shown in FIGS. 14 and 15, the storage battery 100 is provided near the lid side of the container body 108 with the center of the length of the storage battery 100 as a boundary. desirable.

  Further, the quadrangular prism-shaped storage battery 100 as in this embodiment is normally not provided with the necking groove 130 as in the cylindrical storage battery 100 shown in FIG. 2, and the outer surface of the container body 108 is flat. Therefore, it is difficult to pull the enclosure container 101 when it is pulled to one side and the other side. For this reason, it is preferable to form the gripping groove 134 for gripping together with the breaking groove 132.

  Note that the gripping groove 134 is merely a portion where the gripping tool 26 is hooked and is not a groove for breaking. Therefore, the gripping groove 134 is stronger than the breaking groove 132 by making the groove depth shallower than the breaking groove 132. If there is.

Here, the breaking grooving mechanism 10 and the holding grooving mechanism are the same, and may be used as both mechanisms in one configuration.
Further, the lengths of the breaking groove 132 and the gripping groove 134 are continuously connected to the outer surface of the container body 108 of the enclosure 101 over the entire circumference as shown in FIG. However, as shown in FIG. 15B, it may be cut intermittently.

  However, the breaking groove 132 and the gripping groove 134 are not particularly limited to these forms, and the latching piece 28 of the gripping tool 26 can be hooked on the gripping groove 134, so that the breaking groove 132. As long as the enclosure 101 can be broken on one side and the other side of the boundary, any form may be used.

  In addition, in the case of the quadrangular prism-shaped storage battery 100 as in this embodiment, the breaking groove 132 is formed at the corner portion where the strength is likely to increase at a minimum so as to surely cause the breaking. can do.

  Next, in the breaking grooving step, the storage battery 100 in which the breaking groove 132 and the gripping groove 134 are formed on the outer surface of the container main body 108 has a sealed container breaking mechanism as shown in FIG. 20 (encapsulated container breaking step), and sent to the enclosed container separation mechanism 30 (encapsulated container separation step).

  In the enclosure container breaking mechanism 20 and the enclosure container separating mechanism 30, as shown in FIG. 16A, the engaging piece 24 of the gripping tool 22 is hooked on the breaking groove 132 formed on the lid side of the container body 108. Hold it.

On the other hand, the locking piece 28 of the gripping tool 26 is hooked and gripped in the gripping groove 134 formed on the bottom side of the container body 108.
In this state, an external force is applied to the enclosure 101, and in the case of this embodiment, a tensile load is applied to break the enclosure 101 from the breaking groove 132 having the weakest material strength and open the container.

  That is, as shown in FIG. 16A, the gripping tool 26 on the bottom side of the container body 108 in which the locking piece 28 is hooked in the holding groove 134 is fixed, and the locking piece 24 is hooked in the breaking groove 132. The gripping tool 22 is moved in a direction away from the gripping tool 26 (the direction of arrow D in FIG. 16A).

  As a result, as shown in FIG. 16B, the enclosure container 101 is broken at the lid side 108 </ b> A and the bottom side 108 </ b> B with the breaking groove 132 of the enclosure container 101 as a boundary. The part will be exposed.

  At this time, the positive electrode tab 114 of the electrode body 103 joined to the lid member 112 is cut in the vicinity of the lid member 112 due to the fracture of the enclosure 101, but the negative electrode tab 110 is shown in FIG. ), The cover member 112 may remain connected.

In this case, as shown in FIG. 16C, it is preferable to cut the negative electrode tab 110 with an insulating cutting tool (for example, a ceramic scissors) 52.
In this case, as in the embodiment of the cylindrical storage battery 100 shown in FIGS. 1 to 6, as shown in FIG. 8A, when the external force is a tensile load, FIG. ), As shown in FIG. 8C, when the external force is a compressive load, as shown in FIG. 9A, when the external force is a torsional load, as shown in FIG. 9B. As in the case of a bending load, the external force may be a single force, a combination of at least two or more of these external forces, for example, even if the enclosure 101 is pulled while being twisted, It can be broken from the breaking groove 32.

  Next, the storage battery 100 from which the electrode body 103 is exposed in the enclosure container breaking process and the enclosure container separation process is sent to the electrode body extraction mechanism 40 (electrode body extraction process) as shown in FIG. .

In the electrode body take-out mechanism 40, as shown in FIG. 17A, the exposed part of the electrode body 103 is gripped by the gripper.
Next, as shown in FIG. 17B, in this state, the gripper 42 is moved with respect to the enclosing container 101 in a direction away from the enclosing container 101 (direction of arrow E), whereby the electrode body 103 is moved into the enclosing container 101. Will be completely out of the range.

  As a result, as shown in FIG. 18, the quadrangular prism-shaped storage battery 100 in which the electrode body 103 is enclosed in the enclosure 101 is divided into the bottom side 108B and the lid side 108A with the breaking groove 132 as a boundary. The separated enclosure 101 and the internal electrode body 103 are separated.

  In addition, when providing the holding groove 134 for facilitating the holding of the enclosing container 101, the holding groove 134 is provided for the storage battery 100 in which the electrode body 103 is enclosed in the enclosing container 101, as described above. However, when the holding groove 134 is provided in the storage battery 100 after sealing, the plating is peeled off when the container body 108 is plated as a surface treatment, and the battery 100 is used for a long period of several years. In this case, the gripping groove 134 may corrode, and the electrolyte may leak from the corroded portion.

Therefore, in the manufacturing process of the container main body 108, it is desirable to provide the holding groove 134 in the container 108 in advance and to plate the container main body 108 as usual.
FIG. 25 is a front view of a container main body 108 for manufacturing a storage battery, which is a member used when manufacturing a quadrangular prism-shaped storage battery in which the breaking groove 132 and the gripping groove 134 are provided in advance. FIG. 25A is a front view of the container main body 108 in which the breaking groove 132 and the gripping groove 134 are linearly connected continuously to the outer surface of the container main body 108 over the entire circumference. FIG. 25B shows a front view of the container body 108 in which the breaking groove 132 and the gripping groove 134 are formed in a partial line shape in an intermittently cut state.

  In addition, the material of the container body 108 for manufacturing the storage battery, which is a member used when manufacturing the storage battery 100 having a quadrangular prism shape, is not particularly limited, but, for example, an aluminum material can be used.

  Regardless of the shape of the storage battery 100, if, for example, an aluminum material is used as the material of the container main body 108 for manufacturing the storage battery, the plating treatment as rust prevention is unnecessary, and even if the breaking groove 132 is provided, the plating is peeled off. Corrosion problems do not occur. However, also from the viewpoint of easily providing the breaking groove 132 at the lowest cost, it is desirable that the breaking groove forming step is performed in the manufacturing process of the container body 108.

  Further, for example, in a place where a grooving mechanism 10 (breaking grooving process) such as a lathe is not provided in a university or a research institution, a breaking groove is previously used as a member for manufacturing the storage battery 100. By simply supplying the container main body 108 for manufacturing the storage battery provided with 132, the storage battery 100 provided with the breaking groove 132 in advance can be easily manufactured using conventional manufacturing equipment.

  FIG. 19 to FIG. 21 are schematic diagrams for explaining the configuration of an enclosure container separation mechanism 30 (an enclosure container separation process) and an electrode body extraction mechanism 40 (an electrode body extraction process) according to another embodiment of the present invention.

  The enclosure container separation mechanism 30 and the electrode body take-out mechanism 40 of this embodiment are basically the same in configuration as the enclosure container separation mechanism 30 and the electrode body take-out mechanism 40 shown in FIGS. The same reference numerals are assigned to the members, and detailed description thereof is omitted.

  In this embodiment, the storage battery 100 having a quadrangular prism shape is targeted. In the grooving process for breaking, the central portion of the container body 108 in the longitudinal direction is formed on the outer surface of the container body 108 of the enclosure 101 of the storage battery 100 in advance. A breaking groove 132 is formed in the upper part.

In addition, in the enclosure container breaking step, a tensile load is applied to the enclosure container 101 as an external force, and the enclosure container 101 is broken and opened from the breaking groove 132 having the weakest material strength.
19A, the sealed container separation mechanism 30 grips the lid side 108A of the container body 108 that has been broken and separated with the gripping tool 22, and the bottom side 108B with the gripping tool 26. Holding.

  In this state, the gripping tool 22 and the gripping tool 26 are moved away from each other (the direction of the arrow in FIG. 19A). As a result, the broken container main bodies 108A and 108B are moved away from each other to expose the electrode body 103.

  Furthermore, as indicated by the arrow in FIG. 19B, the gripping tool 26 side is fixed, and the gripping tool 22 is moved in a direction away from the gripping tool 26 to be gripped by the gripping tool 26. The electrode body 103 and the lid side 108 </ b> A of the container main body 108 held by the holding tool 22 are moved away from each other.

Accordingly, a tensile load is applied to the current collecting tabs (positive electrode tab 114, negative electrode tab 110), and the current collecting tabs (positive electrode tab 114, negative electrode tab 110) are detached from the lid member 112.
Further, as indicated by the arrow in FIG. 19B, the gripping tool 22 is further moved away from the gripping tool 26. As a result, as shown in FIG. 19C, the lid side 108A of the container body 108 held by the holding tool 22 is moved away from the electrode body 103 held by the holding tool 26. Then, the electrode body 103 housed in the lid side 108A of the container body 108 is completely exposed.

  Then, from this state, as shown in FIG. 20A, as a gripping means for the electrode body 103 constituting a part of the electrode body take-out mechanism 40, a pair of upper and lower electrodes that sandwich the exposed electrode body 103 from above and below. The gripping tool 42 is used to hold the outer surface of the electrode body 103.

  Next, as shown in FIG. 20B, the electrode assembly 103 held by the holding tool 42 is held by the holding tool 26 by moving the holding tool 42 in a direction away from the holding tool 26. The container body 108 is moved away from the bottom side 108B. Thereby, the electrode body 103 can be taken out from the bottom side 108 </ b> B of the container main body 108 held by the holding tool 26.

  By the way, as shown in FIG. 21A, the current collecting tabs (the positive electrode tab 114 and the negative electrode tab 110), when a tensile load is applied, only the negative electrode tab 110 is joined to the electrode body 103 (negative electrode foil). And the negative electrode tab 110 may be detached from the electrode body 103 in some cases. This phenomenon occurs due to a difference in the manufacturing process by the storage battery manufacturer, but it is a rare case.

  When performing voltage measurement, it is preferable that the extracted electrode body 103 is provided with both current collecting tabs (a positive electrode tab 114 and a negative electrode tab 110). However, unlike the cylindrical storage battery 100, the quadrangular prism storage battery 100 that is the object of this embodiment is not limited to the current collecting tab (positive electrode tab 114, The negative electrode tab 110) cannot be gripped together.

  For this reason, as shown in FIG. 21B, it is desirable to cut the negative electrode tab 110 with an insulating cutting tool 52 such as ceramics before the negative electrode tab 110 comes out of the electrode body 103. .

  As shown in FIG. 21C, only the negative electrode tab 110 is detached from the joint with the electrode body, but the current collecting tabs (the positive electrode tab 114 and the negative electrode tab 110) are long. The electrode body 103 is firmly touched.

  For this reason, when the voltage of the electrode body 103 was measured by connecting a voltmeter to the current collecting tabs (the positive electrode tab 114 and the negative electrode tab 110), there was no voltage drop before and after disassembly. The electrode body from which the current collecting tab is removed from the joint can also be used for a standard test such as a forced internal short circuit test. As described above, although the number of work steps increases, the current collecting tab may be cut using the cutting tool 52 or the like.

FIG. 22 is a schematic diagram illustrating a configuration of an embodiment of a storage battery decomposition method and a storage battery decomposition apparatus therefor according to another embodiment of the present invention.
The storage battery disassembling method and the storage battery disassembling apparatus therefor of this embodiment are basically the same in configuration as the embodiment shown in FIGS. 16 to 21, and the same reference numerals are assigned to the same components. Detailed description thereof will be omitted.

  In this embodiment, the prismatic storage battery 100 is targeted, and the first breaking groove 132A and the first breaking groove 132A are formed on the outer surface of the container body 108 of the enclosure 101 of the storage battery 100 in advance in the breaking grooving step. A plurality of breaking grooves 132 of two breaking grooves 132B are provided.

In this case, the first breaking groove 132A is provided extremely close to the lid so that the electrode body is not exposed, and the second breaking groove 132B is provided at a position where the electrode body is exposed.
The first breaking groove 132A is a breaking groove for cutting the current collecting tabs (the positive electrode tab 114 and the negative electrode tab 110), and is shown in FIG. As described above, in the enclosure container breaking step and the enclosure container separating step, the enclosure container 101 (container body 108) is broken and opened at the first break groove 132A. Thereby, the lid side 108 </ b> A of the container main body 108 is separated from the bottom side 108 </ b> B of the container main body 108 containing the electrode body 103.

  Then, as shown in FIG. 22B, the current collecting tabs (the positive electrode tab 114 and the negative electrode tab 110) are cut with an insulating cutting tool 52 such as ceramics. In this case, the current collecting tabs (the positive electrode tab 114 and the negative electrode tab 110) are not subjected to a tensile load, so that they are not detached from the electrode body 103.

  Next, in the same manner as in the above-described embodiment, as shown in FIG. 22 (c), the enclosure container breaking process, the enclosure container separating process, and the electrode body taking-out process are performed, and the container is removed from the second breaking groove 132B. After the main body 108 is broken and separated to expose the electrode body 103 from the container main body 108, the electrode body 103 is taken out from the container main body 108 in the same manner as in the above embodiment.

  A cylindrical lithium ion battery 100 (diameter: 18 mm, length: 65 mm) charged to a voltage of 3.8 V was prepared as an object to be disassembled. The container main body 108 is obtained by applying nickel plating to a steel material and having a thickness of 0.2 mm.

  A straight breaking groove 132 having a width of 1 mm and a depth of 0.1 mm was formed in the air on the outer surface of the lithium ion battery by using the breaking grooving mechanism 10 shown in FIG. The formation position of the breaking groove 132 was 6 mm from the container bottom. FIG. 4A shows a cylindrical storage battery 100 in which a breaking groove 132 is formed.

  It was confirmed that the enclosing container 101 in which the breaking groove 132 was formed did not break even when pulled by hand or dropped and maintained sufficient strength. When the storage battery 100 is handled, if the enclosing container 101 is opened by a light impact or load, it may be accidentally opened in the atmosphere. For this reason, it is preferable that the breaking groove 132 has sufficient strength.

  The width, depth and groove shape of the breaking groove 132 can be changed for convenience. For example, the width of the breaking groove 132 may be increased, and the locking pieces 24 and 28 of the gripping tools 22 and 26 used in the next step may be fitted and held in the breaking groove 132.

  When taking out the electrode body 103 from the container body 108, the cylindrical lithium ion secondary battery 100 is far less likely to be taken out from the bottom side 108B when the lid side 108A and the bottom side 108B are compared. This is because the outer diameter of the electrode body 103 is larger on the lower side (container bottom side), the diameter of the negative electrode tab 110 is larger by about 0.1 mm, and the welding strength of the tab is on the negative electrode side. There are strong things. For this reason, it is preferable that the formation position of the breaking groove 132 is placed near the bottom of the container body 108.

  The breaking grooving step can be performed in the atmosphere because the container main body 108 is cut and not opened. For this reason, there is no restriction on the size of the facility. A dedicated machine is preferred when performing a large amount, but a lathe was used this time. The chips adhering only to the enclosed container may be removed by air blowing or the like.

  Further, although the charged storage battery 100 is used, if the groove is accidentally inserted too deeply, the electrode body 103 is short-circuited by the blade 16 or chips, and there is a risk of heat generation or ignition. Considering the safety of work, charging may be performed after forming the fracture groove 132 in the discharged storage battery 100.

  Next, in the working chamber 2 (glove box) in an inert gas atmosphere, the gripping tool 22 is separated from the container body 108 with the breaking groove 132 as a boundary by the sealed container breaking mechanism 20 shown in FIG. , 26 respectively.

  The gripping tool 22 is gripped by fitting the locking piece 24 in the necking groove 130 of the enclosure 101 and the gripping tool 26 is gripped by fitting the locking piece 28 in the breaking groove 132.

  Next, the gripping tool 26 was fixed, and the gripping tool 22 was moved in a direction away from the gripping tool 26 (direction of arrow A). The gripping tool 22 is connected to a feed screw (not shown) and moves by operating a handle (not shown).

As a result, as shown in FIG. 5B, the container body 108 is opened by being pulled and broken from the breaking groove 132 by the force of the feed screw, and separated into the lid side 108A and the bottom side 108B.
Further, the gripping tool 22 is moved in a direction away from the gripping tool 26 (in the direction of the arrow in FIG. 5B), whereby the gripping tool 26 is moved relative to the lid side 108 </ b> A gripped by the gripping tool 22. The bottom side 108B gripped by the head is moved in a direction away from it (in the direction of the arrow in FIG. 5B).

Then, as shown in FIG. 5B, a tensile load was generated on the positive electrode tab 114, and the positive electrode tab 114 was removed from the lid side 108A.
Further, as shown in FIG. 5C, the gripping tool 22 is moved in the direction of the arrow in FIG. 5B to expose the electrode body 103 from the lid side 108A.

In this case, by providing the breaking groove 132 near the bottom of the container body 108, most of the electrode body 103 is exposed, and the electrode body 103 can be easily taken out.
Next, the negative electrode tab 110 is also gripped by gripping the exposed outer periphery of the electrode body 103 by the gripper 42 of the electrode body take-out mechanism 40 shown in FIG. In this state, by operating a lever (not shown) connected to the gripping tool 42, the gripping tool 42 is moved in a direction away from the gripping tool 26 (in the direction of arrow C in FIG. 6).

Accordingly, the electrode body 103 held by the holding tool 42 is moved away from the bottom side 108 </ b> B of the container body 108 held by the holding tool 26.
Thereby, as shown in FIG. 6B, a tensile load is applied to the negative electrode tab 110, and the negative electrode tab 110 is detached from the bottom side 108 </ b> B of the container body 108.

  Since the gripper 42 also grips the negative electrode tab 110, the negative electrode tab 110 can be reliably removed from the bottom side 108B. Further, as shown in FIG. 6B, the gripper 42 was further moved, and the electrode body 103 was taken out from the bottom side 108 </ b> B of the container main body 108.

When the voltmeter was connected to the positive electrode tab 114 and the negative electrode tab 110 of the electrode body 103 taken out by decomposition and the voltage was measured, it was confirmed that no voltage change occurred before the decomposition.
Further, chips were not confirmed in the broken enclosure 101. Further, it was confirmed that the electrode body 103 taken out from the enclosure 101 was not damaged and could be safely and easily disassembled in a glove box having poor workability.

  As a decomposition target, a quadrangular prism-shaped lithium ion battery 100 (long side width 34 mm, short side width 10 mm, length 50 mm) charged to a voltage of 3.8 V was prepared. The container body 108 is made of aluminum and has a thickness of 0.5 mm.

  Using the breaking (gripping) grooving mechanism 10 shown in FIG. 14 on the outer surface of the lithium ion battery, the width is 1 mm and the depth is 0 mm at a position 10 mm from the end surface of the lid member 112 of the container body 108. A 35 mm straight breaking groove 132 was formed over the entire circumference.

Further, a gripping groove 134 was formed in a portion other than the corner portion with a width of 1 mm and a depth of 0.35 mm.
The formation position of the gripping groove 134 was 10 mm from the end surface of the container bottom. As described above, the breaking groove 132 and the gripping groove 134 were formed in the quadrangular prism-shaped storage battery 100 as shown in FIG.

  For example, when a large amount of the breaking groove 132 and the gripping groove 134 are formed, a dedicated machine is used, but this time, a milling machine is used. The chips adhering only to the container body 108 may be removed by air blowing or the like.

  Next, in the working chamber 2 (glove box) in an inert gas atmosphere, first, the holding tool 22 is inserted into the breaking groove 132 on the lid side of the sealed container 101 by the sealed container breaking mechanism 20 shown in FIG. The locking piece 24 was hung and gripped.

Further, the holding piece 26 of the holding tool 26 was held and held in the holding groove 134 on the container bottom side of the sealed container 101.
Next, the gripping tool 26 on the bottom side 108B of the container body 108 is fixed, and the gripping tool 22 on the lid side 108A of the container body 108 is separated from the gripping tool 26 as shown in FIG. It was moved in the direction of arrow D in FIG. The gripping tool 22 is connected to a feed screw (not shown) and moves by operating a handle (not shown).

As a result, the container body 108 is broken open by the screw force from the breaking groove 132 and separated into the lid side 108A and the bottom side 108B.
Further, as shown in FIG. 16B, the gripping tool 22 is further moved to apply a tensile load to the current collecting tabs (the positive electrode tab 114 and the negative electrode tab 110), and the positive electrode tab 114 is joined to the lid member 112. The electrode body 103 was exposed from the lid side 108A in a state where the negative electrode tab 110 was detached from the joint portion of the electrode body.

Next, as shown in FIG. 16C, the negative electrode tab 110 was cut and cut using a cutting tool 52 having insulating properties such as ceramics.
Next, as shown in FIG. 17, the electrode body extraction mechanism 40 is used to grip the exposed outer surface of the electrode body 103 with the gripping tool 42, and the gripping tool 42 is separated from the gripping tool 26. The electrode assembly 103 was taken out from the bottom side 108B of the container main body 108.

When the voltmeter was connected to the positive electrode tab 114 and the negative electrode tab 110 of the electrode body 103 taken out by decomposition and the voltage was measured, it was confirmed that no voltage change occurred before the decomposition.
In addition, chips and the like were not confirmed in the broken container body 108.

Further, it was confirmed that the electrode body 103 taken out from the enclosure 101 was not damaged and could be safely and easily disassembled in a glove box having poor workability.
The preferred embodiment of the present invention has been described above, but the present invention is not limited to this, and various modifications can be made without departing from the object of the present invention.

  For example, in the storage battery decomposition apparatus 1, the storage battery 100 to be decomposed is not limited to the above-described cylindrical shape or quadrangular prism shape, but may take any form. In addition, the size of the storage battery 100 to be disassembled can correspond, for example, from a small one used for a mobile phone to a large one used for an automobile.

Further, when the gripping means is moved by the moving means, the gripping means may be moved not only in the left-right direction but also while twisting or applying vibration.
Further, the breaking groove 132 may be provided obliquely with respect to both end faces of the storage battery 100 in addition to being provided substantially parallel to both end faces of the storage battery.

Further, the method of gripping the storage battery 100 in the storage battery decomposition apparatus 1 is not limited to the above-described method, and it is naturally possible to use a known gripping means.
Thus, the storage battery decomposition apparatus and storage battery decomposition method of the present invention can be variously modified without departing from the object of the present invention.

  The present invention is, for example, a primary battery such as a manganese battery, an alkaline battery, a lithium battery, and the like used in an electronic device such as a personal computer, a mobile phone, a digital camera, and a PDA (Personal Digital Assistance) enclosed in an enclosure. Enclosed in order to perform predetermined inspections such as safety tests and recycling in secondary batteries such as lead-acid batteries, nickel-cadmium batteries, nickel-hydrogen batteries, lithium-ion batteries, etc., double-layer capacitors, capacitors, etc. The present invention can be applied to a method for disassembling a storage battery in which an electrode body that is the contents in the container is taken out from the sealed container, and a storage battery disassembling apparatus therefor.

1 Battery storage device 2 Work room (glove box)
6 Cutting tool 10 Breaking grooving mechanism 12 Fixing tool 14 Processing machine 16 Cutting tool 20 Enclosed container breaking mechanism 22 Holding tool 24 Locking piece 22 ', 26' Pressing member 28 Locking piece 30 Enclosing container separating mechanism 32 Breaking groove 40 Electrode Body take-out mechanism 42 Holding tool 52 Cutting tool 100 Storage battery 101 Enclosed container 102 Positive electrode 103 Electrode body 104 Negative electrode 106 Separator 108 Container body 108A Lid side 108B Bottom side 110 Current collecting tab (negative electrode tab)
112 Lid member 114 Current collecting tab (positive electrode tab)
130 Necking groove 132 Breaking groove 132A First breaking groove 132B Second breaking groove 134 Holding groove P Support point

Claims (27)

Disassembling a storage battery in which an electrode body is enclosed in an enclosure, and a method for disassembling the storage battery for taking out the electrode body from the enclosure,
A grooving step for breaking to provide a groove for breaking not penetrating to the inside of the sealed container on the outer surface of the container body of the sealed container of the storage battery,
By applying an external force to the enclosure, the enclosure container breaking step for breaking and opening the enclosure from the breaking groove;
A sealed container separating step for exposing the electrode body by moving the sealed container broken in the sealed container breaking step in a direction away from the sealed container;
An electrode body gripping step for gripping the electrode body exposed by the enclosure container separation step;
A method for disassembling a storage battery, comprising: an electrode body taking-out step of taking out the electrode body from the enclosing container by moving the electrode body and the enclosing container in a state of holding the electrode body. Disassembling a storage battery in which an electrode body is enclosed in an enclosure, and a method for disassembling the storage battery for taking out the electrode body from the enclosure,
By applying an external force to the enclosure, the enclosure container breaking step for breaking and opening the enclosure from the breaking groove;
A sealed container separating step for exposing the electrode body by moving the sealed container broken in the sealed container breaking step in a direction away from the sealed container;
An electrode body gripping step for gripping the electrode body exposed by the enclosure container separation step;
A method for disassembling a storage battery, comprising: an electrode body taking-out step of taking out the electrode body from the enclosing container by moving the electrode body and the enclosing container in a state of holding the electrode body.   3. The method for disassembling a storage battery according to claim 2, wherein the storage battery is a storage battery in which a breaking groove that does not penetrate to the inside of the enclosure is provided in advance on the outer surface of the enclosure body of the enclosure. Before the enclosure container breaking step, the enclosure container holding step for holding one side and the other side of the enclosure container with the breaking groove of the enclosure container as a boundary,
The said enclosure container fracture | rupture process WHEREIN: By applying external force to an enclosure container in the state which hold | gripped the enclosure container, an enclosure container is fractured | ruptured and opened from the groove | channel for fracture | rupture. Disassembly method of storage battery. In the enclosure container breaking step,
The external force applied to the enclosure container for breaking from the breaking groove of the enclosure container is any one of tension, compression, twisting, bending, or a combination of at least two of these. The method for disassembling a storage battery according to any one of claims 1 to 4.   The storage battery according to any one of claims 1 to 5, wherein the break groove is provided at a position where the electrode body exposed from the enclosing container in the enclosing container separating step can be held in the electrode body holding step. Disassembly method.   The method for disassembling a storage battery according to any one of claims 1 to 6, wherein the breaking groove is provided substantially parallel to both end faces of the storage battery. Before the enclosure container gripping step,
8. A gripping grooving step for providing a gripping groove for facilitating gripping of the sealed container on the outer surface of the sealed container substantially parallel to the breaking groove. A method for disassembling the storage battery according to claim 1.   4. The storage battery according to claim 3, wherein the storage battery is a storage battery in which a gripping groove for facilitating gripping the sealed container is provided in advance on the outer surface of the sealed container in substantially parallel to the fracture groove. Disassembly method of storage battery.   The method for disassembling a storage battery according to any one of claims 1 to 9, wherein the breaking groove of the enclosing container is also used as a grasping groove for easily grasping the enclosing container. In the electrode body removal step,
The method for disassembling a storage battery according to any one of claims 1 to 10, wherein the current collecting tab is detached from the enclosing container by separating the current collecting tab from the enclosing container. In the electrode body removal step,
The electrode body is removed from the enclosure container by moving the enclosure container and the electrode body so as to be separated from each other while holding the current collecting tab together with the electrode body. The method for disassembling the described storage battery.   The method for disassembling a storage battery according to any one of claims 1 to 12, wherein the breaking groove is a breaking groove in which a plurality of breaking grooves are provided apart from each other.   The method for disassembling a storage battery according to any one of claims 1 to 13, wherein the storage battery has a cylindrical shape or a quadrangular prism shape.   The method for disassembling a storage battery according to any one of claims 1 to 14, wherein the storage battery is a charged storage battery.   The method for disassembling a storage battery according to any one of claims 1 to 15, wherein at least the enclosure container breaking step is performed in a working chamber in an inert gas atmosphere. A storage battery disassembling device for disassembling a storage battery in which an electrode body is sealed in a sealed container and taking out the electrode body from the sealed container,
A breaking grooving mechanism for providing a breaking groove that does not penetrate to the inside of the sealed container on the outer surface of the sealed container body of the storage battery,
A sealed container breaking mechanism that breaks and opens the sealed container from the breaking groove by applying an external force to the sealed container;
A sealed container separating mechanism for exposing the electrode body by moving the sealed container broken by the sealed container breaking mechanism in a direction away from the sealed container;
An electrode body gripping mechanism for gripping the electrode body exposed by the enclosure separation mechanism;
An electrode body taking-out mechanism for taking out the electrode body from the enclosing container by moving the electrode body and the enclosing container away from each other while holding the electrode body by the electrode body grasping mechanism. Storage battery disassembly device. A storage battery disassembling device for disassembling a storage battery in which an electrode body is sealed in a sealed container and taking out the electrode body from the sealed container,
A sealed container breaking mechanism that breaks and opens the sealed container from the breaking groove by applying an external force to the sealed container;
A sealed container separating mechanism for exposing the electrode body by moving the sealed container broken by the sealed container breaking mechanism in a direction away from the sealed container;
An electrode body gripping mechanism for gripping the electrode body exposed by the enclosure separation mechanism;
An electrode body taking-out mechanism for taking out the electrode body from the enclosing container by moving the electrode body and the enclosing container away from each other while holding the electrode body by the electrode body grasping mechanism. Storage battery disassembly device.   19. The storage battery according to claim 18, wherein the storage battery is configured to use a storage battery in which a breaking groove that does not penetrate to the inside of the enclosure is provided in advance on the outer surface of the enclosure body of the enclosure. Disassembly equipment. Before the enclosure container breaking mechanism, provided with an enclosure container gripping mechanism for grasping one side and the other side of the enclosure container with the breaking groove of the enclosure container as a boundary,
The enclosure container breaking mechanism is configured to break and open the enclosure container from the breaking groove by applying an external force to the enclosure container while the enclosure container is gripped. The storage battery disassembling apparatus according to any one of the above.   A storage battery characterized in that a breaking groove that does not penetrate to the inside of the enclosure is provided in advance on the outer surface of the enclosure body of the enclosure.   The storage battery according to claim 21, wherein the position where the breaking groove is provided is provided at a position where the electrode body exposed from the enclosing container can be gripped.   The storage battery according to any one of claims 21 to 22, wherein the breaking groove is provided substantially parallel to both end faces of the storage battery.   The storage battery according to any one of claims 21 to 23, wherein the breaking groove is a breaking groove in which a plurality of breaking grooves are provided apart from each other.   25. A gripping groove for facilitating gripping the sealed container is provided in advance on the outer surface of the container body of the sealed container in substantially parallel to the fracture groove. Storage battery. It is a manufacturing method of the storage battery of Claim 21-25,
A method for producing a storage battery, comprising: using a container main body provided with a breaking groove that does not penetrate to the inside of the sealed container in advance on an outer surface of the container main body of the sealed container. A container body for manufacturing a storage battery according to claim 21 to 25,
A container body for producing a storage battery, characterized in that a breaking groove that does not penetrate to the inside of the sealed container is provided in advance on the outer surface of the container body of the sealed container.