JP2003238102A - Apparatus for producing hydrogen storage body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To produce a new and inexpensive hydrogen storage body having capability of occluding a large amount of hydrogen, light weight and of storing a large amount of hydrogen at ordinary temperature and a low pressure. <P>SOLUTION: A rocking mill 1 is equipped with a vibrating table 6 whose face is placed to a horizontal direction and a mill vessel 2 is fixed on the vibrating table 6. A transporting pipe 3 connected to a hydrogen bomb 5 for vacuum exhausting and hydrogen filling is attached to the mill vessel 2. Graphite and hydrogen whose pressure is 10 MPa (corresponding to about 100 atmospheric pressure) are filled in the mill vessel 1. A steel ball 12 is put in for milling and the milling of the graphite 13 is performed by a rocking mill motion which moves to a rotating direction 15 indicated in a drawing. Hydrogen can be filled externally in the mill vessel 2 during the milling. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydrogen storage production apparatus for milling at high pressure a novel hydrogen storage body which is lightweight and capable of storing a large amount of hydrogen at room temperature and low pressure.

[0002]

2. Description of the Related Art Due to the problems of global environment protection and fossil fuel depletion in recent years, fuel cells are regarded as a promising source of electric power as an alternative energy to replace fossil fuels. Fuel cells are attracting attention because they use hydrogen and oxygen as raw materials and their exhaust gas is clean. However, when hydrogen is used as the fuel, there is also a method of utilizing reforming of methanol or natural gas, but it has a drawback that it takes time at startup and it is difficult to cope with a sudden load change. Therefore, it is necessary to store hydrogen, but in the conventional method, it is necessary to use a high-pressure cylinder in which hydrogen is compressed or liquid hydrogen at a low temperature. However, when the compressed hydrogen is used, the compressed hydrogen is stored in the high-pressure cylinder, so that the high-pressure cylinder has a disadvantage of being heavy.
Further, in the case of liquid hydrogen, there is a drawback that the storage container becomes large because hydrogen must be constantly cooled to −252 ° C. and stored.

Recently, there has been a demand for a lightweight hydrogen storage material having a small storage volume and capable of solving these problems. At present, the most practically applicable one is a hydrogen storage alloy, which stores hydrogen as a metal hydride. However, since the amount of hydrogen storage per unit weight of the hydrogen storage alloy is small, it cannot be used for automobiles that require a large amount of hydrogen. Further, in the case of an alloy, at the time of absorbing and desorbing hydrogen, since the alloy needs to be exposed to high pressure and high temperature conditions, deterioration and performance deterioration of the hydrogen absorbing alloy due to repetition thereof, and when the constituent element is a rare metal, There are problems such as resource depletion.

In such a situation, a carbon material has attracted attention as a material which is lightweight and capable of storing a large amount of hydrogen and which is inexpensive to manufacture. Among carbon materials, there are activated carbon, carbon nanotubes, graphite nanofibers, and nanographite as materials showing a large amount of hydrogen storage performance. Carbon nanotubes are usually produced by arc-discharging between graphite electrodes in a rare gas or by thermally decomposing hydrocarbons such as methane in an ultrafine particle atmosphere of Fe or Ni. For hydrogen storage performance, see Dillon
(Dillon et al., Nature, 386, 377-379 (199
7)), and in the research of Liu et al., It is known that the single-walled carbon nanotubes (diameter 1.6 to 2 nm, length several μm) show hydrogen storage capacity of about 4.2 wt% at about 100 atm and room temperature. (Liu et al., Science, 286 1127-1129 (1999)).

[0005]

[Problems to be Solved by the Invention] Graphite nanofibers are materials made of only fine fibrous carbon (fiber diameter is 10 to several 100 nm, length is several μm). It is obtained by thermal decomposition in the presence of a metal catalyst such as. The hydrogen absorption amount of the obtained graphite nanofiber was measured, and it was reported that a large amount of hydrogen was absorbed at room temperature of about 100 atm (Chambers et a
l., J. Phys. Chem. B, 102, 4253-4256 (1998)), but has the drawback that reproducibility cannot be obtained (Ahn et al.,
Appl. Phys. Lett., 73, 3378-3380 (1998)). One of the reasons for non-reproducibility is that graphite nanofibers tend to grow a graphite layer unsuitable for hydrogen adsorption when growing from the crystal plane of the metal catalyst. as a result,
Many graphite nanofibers show the same amount of hydrogen adsorption as ordinary graphite.

For nanographite, a planetary ball mill as shown in FIGS. 11 and 12 is used by Orimo Shigeru of the inventor of the present application. As shown in the figure, the rotary table 36 connected to a driving means (not shown) can rotate in the horizontal direction with the rotation center 37 as the rotation axis. A pair of planetary mill containers 35 are placed on the rotary table 36, and the planetary mill containers 35 can be rotated about the center of the container 35 by a drive means (not shown). Therefore,
Each planet mill container 35 revolves around the rotation center 37 of the rotary table 36, and the planet mill container 35 itself has a relationship of rotation. With such a structure, the planetary mill container 35 accommodates balls and graphite therein, and is filled with hydrogen so that the planetary mill container 35 is rotated. In such a device, graphite, which normally has a low hydrogen storage capacity, is mechanically crushed in a hydrogen atmosphere (mechanical milling or mechanical alloying) to produce a nano-sized (3-5 nm) graphite crystal plane. Generate a large number of lattice defects of
It has been reported that it absorbs 7.4 wt% of hydrogen at room temperature at about 10 atm (Japanese Patent Application 2000-121728, Orimo et al., Appl. Phys. L).
ett., 75, 3093-3095 (1999)).

However, in the conventional mechanical pulverizer using the planetary ball mill, the main purpose is to make fine particles of the powder material and to mix the powder material, so that hydrogen gas must be filled in a small mill container of about 50 cc. However, even if it could be filled at a high pressure, its hydrogen storage capacity was insignificant. In addition, although a vibration type rocking mill may be used for milling, like the planetary ball mill, since the main purpose of the conventional device was to make fine particles of the powder, additional hydrogen was added to the mill container and continuous replenishment was performed. There was no attempted case.

The present invention has been made in view of the above problems of the prior art. The object of the present invention is to supply hydrogen gas to the graphite during milling or to increase the pressure in the graphite. Promotes hydrogen absorption / desorption reaction,
An object of the present invention is to provide a new, inexpensive, mechanically pulverized hydrogen storage device manufacturing apparatus capable of storing a large amount of hydrogen at room temperature and low pressure, which has a large amount of hydrogen storage performance.

[0009]

In order to achieve the above object, a hydrogen storage device manufacturing apparatus according to the present invention comprises a container for storing a hydrogen storage material, and a crushing for mechanically crushing the storage material in the container. And a hydrogen supply means for supplying hydrogen into the container, and while absorbing hydrogen into the storage material, the storage material absorbs hydrogen while sending hydrogen from outside the container into the container. . Further, in order to achieve the above object, another hydrogen storage device manufacturing apparatus of the present invention is a mill container for storing a hydrogen storage material, a vibration table for vibrating the mill container to crush the storage material, and A hydrogen cylinder for supplying hydrogen into the mill container was provided, and during absorption of hydrogen by the storage material, hydrogen was sent from the outside of the mill container to allow the storage material to absorb hydrogen. In addition to this,
The mill container is provided with openings and pipes for hydrogen supply and exhaust,
The structure can be connected to a high-pressure hydrogen cylinder installed outside the mill container.

Further, in order to achieve the above-mentioned object, the hydrogen storage device manufacturing apparatus of the present invention includes a mill container for storing a hydrogen storage material, a hydrogen cylinder for supplying hydrogen to the mill container, a mill container and hydrogen. It is equipped with a flow rate control valve that is provided between the cylinder and the tank to adjust the amount of hydrogen supply in the mill container, and a vibration table where these mill container, hydrogen cylinder and flow rate control valve are arranged. The occlusion material in the mill container was pulverized, and during the absorption of hydrogen by the occlusion material, the occlusion material was made to absorb hydrogen while sending hydrogen from the outside of the mill container into the container.

In order to achieve the above object, the hydrogen storage device manufacturing apparatus of the present invention is provided with a mill container for storing a hydrogen storage material, a vibration table in which the mill container is arranged, and a vibration table arranged outside the vibration table. Hydrogen supply means for supplying hydrogen to the mill container, and a flow control valve provided between the mill container and the hydrogen supply means for adjusting the hydrogen supply amount in the mill container,
A suppression means for preventing the vibration of the vibration table from being transmitted to the hydrogen supply means between the mill container and the hydrogen supply means, and the absorption material in the mill container is crushed by the vibration of the vibration table, During absorption of hydrogen, the storage material was made to absorb hydrogen while sending hydrogen from the outside of the mill container into the container. The hydrogen supply means may be provided with a pressurizing device for pressurizing hydrogen pressure into the mill container.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION A hydrogen storage device manufacturing apparatus according to a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a front view of a hydrogen storage device manufacturing apparatus for mechanically crushing graphite according to the present invention. In this embodiment, the hydrogen storage device uses the swinging rocking mill 1 for mechanical grinding (milling). That is, the rocking mill 1 is provided with a vibrating table 6 whose table surface is placed horizontally, and the vibrating table 6 vibrates in a horizontal direction at a predetermined angle with a center of the table as a rotation axis.
can do. The vibrating table 6 has a cylindrical rod 7 standing upright at the center of vibration, and the vibrating table 6 has the outer peripheral surface shown in FIGS.
The mill container 2 shown in is fixed.

The mill container 2 is equipped with a transfer pipe 3 so that the inside thereof can be evacuated and filled with hydrogen gas. Figure 2
The block diagram of the mill container 2 used by this Embodiment is shown in FIG.
The mill container 2 is provided on the outer peripheral side of the vibration table 6 with the central axis of the vibration table 6 interposed therebetween.
A transfer pipe 3 for evacuation and hydrogen supply was attached to. As shown in FIG. 1, a flow rate adjusting valve 4 is connected to the tip of the transfer pipe 3 via the transfer pipe 3, and a hydrogen cylinder 5 for supplying high-pressure hydrogen gas via the transfer pipe 3 is attached to the valve 4. There is. A pressure sensor 9 is arranged between the valve 4 and the hydrogen cylinder 5. A valve 4, a hydrogen cylinder 5, and a pressure sensor 9 are independently provided in each of the two mill containers 2, and the valve 4, the hydrogen cylinder 5, and the pressure sensor 9 are fixed to a rod 7. It is firmly fixed via a mounting bracket. Mill container 1
As shown in the horizontal cross section of the mill container in FIG. 4, graphite 13 was filled inside, and hydrogen molecules 14 at 10 MPa (corresponding to about 100 atm) were filled. A steel ball 12 is put in the milling, and the graphite 13 is milled by moving in the rotation direction 15 shown in the figure by the movement of the rocking mill.

In this embodiment, the procedure is as follows. Fill the mill container 2 with 0.3 g of graphite 13,
While evacuating the inside of the container, the container was heated to about 150 ° C. to remove adsorbed water. After cooling the mill container 2 to room temperature, hydrogen was filled into the mill container 2 and the hydrogen cylinder 5 at room temperature, and the pressure was set to 10 MPa by monitoring with a pressure sensor attached to the hydrogen cylinder 8. Next, the mill container 2 was fixed to the vibration table 6 of the rocking mill 1, and it was confirmed by the pressure sensor 9 that there was no leak. Two mill containers 2 are installed and the vibration frequency is 50
Performed in Hz. In order to avoid the temperature increase of the mill container 2 due to milling, the rocking mill 1 was continuously operated for 1 hour and then a 30-minute rest period as one cycle. FIG. 5 shows the relationship between the value of the pressure sensor 9 attached to the hydrogen cylinder and the milling time. The left side of the vertical axis shows the pressure (atm), the horizontal axis shows the milling time (h), the right side of the vertical axis shows the hydrogen storage amount (g), the solid line in the figure shows the pressure of hydrogen, and the chain line shows The amount of hydrogen adsorbed is shown. From this figure, it can be seen that the hydrogen adsorption of graphite progresses by the milling and at the same time, the hydrogen supply from the hydrogen cylinder 5 is successfully performed. The figure also shows the results of determining the amount of adsorbed hydrogen calculated from the obtained pressure change. The amount of hydrogen adsorbed up to about 10 wt% was confirmed. From this result, it can be seen that the milling time reaches saturation in 80 to 100 hours.

Conventionally, a closed type mill container intended for crushing or the like is provided with hydrogen supply and exhaust openings and a transfer pipe, and is connected to a high-pressure hydrogen cylinder installed outside the mill container, so that high pressure during milling is achieved. Can supply hydrogen.
That is, since it has become possible to always fill the container with hydrogen, it has become possible to supply new hydrogen while the graphite is absorbing hydrogen. Since the valve installed between the mill container and the high-pressure hydrogen cylinder can control the hydrogen pressure and supply amount in the mill container, the rate of hydrogen adsorption to the sample can be controlled. Therefore, it is possible to shorten the time until the amount of hydrogen adsorbed by graphite becomes saturated.

A second embodiment of the present invention will be described with reference to the drawings. FIG. 6 shows a front view of a hydrogen storage device manufacturing apparatus for mechanically crushing graphite according to the present embodiment. In the present embodiment, the mechanical crushing (milling) uses the rocking mill 1 as in the first embodiment. As in the first embodiment, the mill container 2 was fixed to a vibration table 6 provided on the upper surface of the rocking mill, and a transfer pipe 3 for vacuum exhaust and hydrogen supply was attached to the upper lid of the mill container 2. In the present embodiment, as shown in FIG. 6, a hydrogen cylinder 8 that supplies high-pressure hydrogen gas via a valve 4 is attached to the tip of the transfer pipe 3 connected to each mill container 2, and a pair of replenishers is further added. A hydrogen cylinder 17 for use was installed. The pressure sensor 9 is attached to one of the pair of replenishing hydrogen cylinders 17. The refueling hydrogen cylinder 17 is fixed to the rod 7, and the rocking mill 1 vibrates S in the direction shown in the figure with the rod 7 at the center of the vibration table 6 as the vibration center. A valve 4, a hydrogen cylinder 5, a replenishment hydrogen cylinder 17 and a pressure sensor 9 are independently arranged in each of the two mill containers 2.

In practice, 0.3 g of graphite was filled in the mill container 2 and the mill container 2 was evacuated to about 3
The adsorbed water was removed by heating to 150 ° C. After cooling the mill container 2 to room temperature, a hydrogen cylinder 5 and a supplementary hydrogen cylinder 1
Fill the mill container 2 with hydrogen from No. 7, and fill the refueling hydrogen cylinder 17
The pressure sensor 9 attached to the was set to a pressure indicating 10 MPa. Next, the mill container 2 was fixed to the vibration table 6 of the rocking mill 1, and it was confirmed by the pressure sensor 9 that there was no leak. Two mill containers 2 were installed and the frequency was 50 Hz. In order to avoid the temperature rise of the container due to milling, the milling device was continuously operated for 1 hour and then a 30-minute rest period as one cycle.

FIG. 7 shows the relationship between the value of the pressure sensor attached to the hydrogen cylinder and the milling time. From this figure, the pressure drop of hydrogen gas is suppressed by the increase of the hydrogen cylinder capacity, and while the condition of high hydrogen pressure is maintained, the hydrogen adsorption of graphite progresses by milling and the hydrogen supply from the hydrogen cylinder simultaneously. You can see that is done well. The figure also shows the results of determining the amount of adsorbed hydrogen calculated from the obtained pressure change. The amount of hydrogen adsorbed up to about 10 wt% was confirmed. From this result, it can be seen that the saturation is reached after about 60 hours of milling. This result is the first
It is shown that the processing speed is slightly higher than the result of the embodiment.

During the milling process, a closed type mill container, which has been conventionally used for crushing or the like, is provided with hydrogen supply and exhaust openings and transfer pipes, and a plurality of high-pressure hydrogen cylinders installed outside the mill container are connected. Moreover, hydrogen can be supplied for a long time without being depleted while maintaining high pressure. Since the density of hydrogen molecules becomes high with respect to the hydrogen adsorption sites exposed by milling, the adsorption rate until reaching a saturated state can be increased, so that the production time of the hydrogen storage body can be significantly shortened.

A third embodiment of the present invention will be described with reference to the drawings. FIG. 8 shows a front view of a hydrogen storage device manufacturing apparatus for mechanically crushing graphite according to the present embodiment. In the present embodiment, the rocking mill 1 is used for mechanical crushing (milling) as in the first embodiment.
The mill container 2 was fixed to a vibration table 6 provided on the upper surface of the rocking mill, and a transfer pipe 3 for evacuation and hydrogen supply was attached to the upper lid of the mill container 2. The rocking mill 1 performs the vibration S shown in the figure with the center of the vibration table 6 as the vibration center.

In the present embodiment, as shown in FIG. 8, a hydrogen cylinder 5 for supplying a high-pressure hydrogen gas via a valve 4 is attached to the tip of the transfer pipe 3, and a spiral pipe 18 is provided to avoid vibration. Through, the large-capacity hydrogen cylinder 20 of the external piping system shown in FIG. 9 was installed. As shown in FIG. 9, the spiral tube 19 is connected to the large-capacity hydrogen cylinder 20 via valves 32, 29, 30 and the pressure sensor 21 is connected to the valve 29.
It is arranged in the line between the and 30. On the exhaust side of the large capacity hydrogen cylinder 20, exhaust system valves 31, 25 and 2 are provided.
6, and valves 28 and 22 are provided on the hydrogen supply line side to the large-capacity hydrogen cylinder 20, and an argon supply valve 23 and a vacuum gauge 24 are connected to the line.

In carrying out the method, 0.3 g of graphite was filled in the mill container 2 and the container was evacuated to about 150 ° C.
The adsorbed water was removed by heating. After cooling the mill container 2 to room temperature, the mill container 2 was fixed to the vibration table 6 of the rocking mill 1, and it was confirmed by the pressure sensor 9 that there was no leak. Hydrogen cylinder 8 and large capacity hydrogen cylinder 20 at room temperature
Then, the mill container 2 was filled with hydrogen and the pressure sensor 21 attached to the external piping system was set to a pressure of 10 MPa. Two mill containers were installed and the frequency was 50 Hz. In order to avoid the temperature rise of the container due to milling, the milling device
After running for an hour, one cycle of 30-minute rest was performed continuously.

FIG. 10 shows the relationship between the value of the pressure sensor attached to the hydrogen cylinder and the milling time. From this figure, it can be seen that the use of a large-capacity hydrogen cylinder suppresses the pressure drop of hydrogen gas, and the hydrogen adsorption of graphite is progressing by milling while maintaining the condition of high hydrogen pressure. The figure also shows the results of determining the amount of adsorbed hydrogen calculated from the obtained pressure change. The amount of hydrogen adsorbed up to about 10 wt% was confirmed. From this result, it can be seen that saturation is reached after about 30 hours of milling. This result is the first
It is shown that the processing speed is improved considerably more effectively than the results of the first embodiment and the second embodiment. In the present embodiment, the hydrogen cylinder 9 is connected to the mill container, but if the large-capacity hydrogen cylinder has a margin, the hydrogen cylinder 9 may be omitted.
The same result can be obtained by removing the large-capacity hydrogen cylinder by increasing the filling pressure.

Conventionally, a closed mill container intended for crushing or the like is provided with an opening for hydrogen supply and exhaust and a transfer pipe, and is connected to a large-capacity hydrogen cylinder installed outside a vibration table equipped with the mill container. As a result, hydrogen can be supplied while being maintained at a high pressure during milling without being depleted for a long time. Since the density of hydrogen molecules is high with respect to the hydrogen adsorption sites exposed by milling, the adsorption rate can be increased, and the manufacturing time of the hydrogen storage body can be shortened. According to the pressure sensor provided at the outlet of the large capacity hydrogen cylinder, the pressure supplied to the mill container can be controlled to a constant value or continuously. The hydrogen pressure supplied to the mill container can be controlled (constant value, continuous, etc.) by controlling the valve at the outlet of the large-capacity hydrogen cylinder while monitoring the hydrogen pressure supplied to the mill container.

Although the respective embodiments of the present invention have been described above, the present invention can of course be variously modified or changed based on the technical idea of the present invention. For example, in each of the above-described embodiments, two mill containers 2 are arranged on the vibration table 6, but the number of mill containers 2 is not particularly limited, and work can be performed using one or more mill containers 2. It is possible.

[0026]

According to the hydrogen storage device manufacturing apparatus of the present invention,
A container for accommodating the hydrogen storage material, a crusher for crushing the storage material in the container, and a hydrogen supply means for supplying hydrogen into the container, and the outside of the container during the hydrogen absorption of the storage material. Since the hydrogen storage material is made to absorb hydrogen while applying hydrogen pressure to the inside of the container, the hydrogen storage material can absorb hydrogen in a short time until the absorbed amount of hydrogen becomes saturated. By providing a plurality of the hydrogen cylinders, the storage material can be maintained in a high pressure state for a long time, and the storage material can absorb hydrogen more quickly. Since the hydrogen supply means for supplying hydrogen to the mill container is provided outside the vibrating table, a large capacity hydrogen supply means can be provided, and the hydrogen is continuously depleted during the hydrogen absorption work without continuously depleting the hydrogen. You can do absorption work. By providing the hydrogen supply means with a pressurizing device for pressurizing the hydrogen pressure in the mill container, high-pressure hydrogen can be supplied into the mill container.

[Brief description of drawings]

FIG. 1 is a front view of a hydrogen storage device manufacturing apparatus according to a first embodiment of the present invention.

FIG. 2 is an exploded configuration diagram of a mill container of the hydrogen storage device manufacturing apparatus of FIG.

3 is a plan view showing the arrangement and internal structure of a mill container of the hydrogen storage device manufacturing apparatus of FIG. 1. FIG.

FIG. 4 is a conceptual diagram of hydrogen adsorption on graphite by high pressure milling in the hydrogen storage device manufacturing apparatus of FIG. 1.

FIG. 5 is a diagram showing the relationship between the high pressure milling time, the hydrogen pressure and the amount of adsorbed hydrogen according to the first embodiment.

FIG. 6 is a front view of the hydrogen storage device manufacturing apparatus according to the second embodiment of the present invention.

FIG. 7 is a diagram showing the relationship between the high-pressure milling time, the hydrogen pressure, and the amount of adsorbed hydrogen according to the second embodiment.

FIG. 8 is a front view of a hydrogen storage device manufacturing apparatus according to a third embodiment of the present invention.

FIG. 9 is a piping diagram of a large-capacity hydrogen cylinder part of the hydrogen storage device manufacturing apparatus of FIG.

FIG. 10 is a diagram showing the relationship among high pressure milling time, hydrogen pressure and adsorbed hydrogen amount according to the third embodiment.

FIG. 11 is a side view of a conventional planetary ball mill device.

12 is a plan view of the planetary ball mill device of FIG. 11. FIG.

[Explanation of symbols]

1 rocking mill 2 mil container 3 tubes 4,22,23,25-32 valves 5 hydrogen cylinder 6 vibration table 7 rod 9,21 Pressure sensor 11 Top lid 12 balls 13 Graphite 14 hydrogen molecules 17 Refilling hydrogen cylinder 18 spiral tube 20 large capacity hydrogen cylinder 24 vacuum gauge

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Hironobu Fujii             5-2-2 Takamiyagaoka, Takaya, Higashihiroshima City, Hiroshima Prefecture             −606 (72) Inventor Shinichi Orishige             2-360-2-306 Kagamiyama, Higashihiroshima City, Hiroshima Prefecture F-term (reference) 3E072 EA10 GA30                 4G040 AA01 AA11 AA24                 5H027 BA13

Claims (6)

[Claims] 1. A container comprising a hydrogen storage material, a crusher for mechanically crushing the storage material in the container, and a hydrogen supply means for supplying hydrogen into the container, the storage device comprising: A hydrogen storage device manufacturing apparatus characterized in that during absorption of hydrogen, the storage material absorbs hydrogen while sending hydrogen from the hydrogen supply means into the container. 2. A mill container containing a hydrogen storage material,
A vibration table for vibrating the mill container to crush the occlusion material and a hydrogen cylinder for supplying hydrogen into the mill container are provided, and hydrogen is sent from the hydrogen cylinder into the mill container during the absorption of hydrogen by the occlusion material. However, the hydrogen storage device manufacturing apparatus is characterized in that the storage material is made to absorb hydrogen. 3. A mill container containing a hydrogen storage material,
A hydrogen cylinder for supplying hydrogen to the mill container, a flow control valve provided between the mill container and the hydrogen cylinder for adjusting the hydrogen supply amount in the mill container, the mill container, the hydrogen cylinder and the flow rate control valve. With the vibration table provided, the occlusion material in the mill container is crushed by the vibration of the vibration table,
A hydrogen storage device manufacturing apparatus characterized in that, during the absorption of hydrogen by the storage material, the storage material absorbs hydrogen while sending hydrogen from the hydrogen cylinder into the mill container. 4. The hydrogen storage device manufacturing apparatus according to claim 3, further comprising a plurality of the hydrogen cylinders. 5. A mill container containing a hydrogen storage material,
A vibration table provided with the mill container, a hydrogen supply means for supplying hydrogen to the mill container provided outside the vibration table, a hydrogen supply means provided between the mill container and the hydrogen storage means, A flow control valve for adjusting the supply amount and a vibration suppressing means for preventing the vibration of the vibration table from being transmitted to the hydrogen storage means are provided between the mill container and the hydrogen supply means, and the vibration of the vibration table causes the vibration in the mill container to be reduced. An apparatus for producing a hydrogen storage body, characterized in that the storage material is crushed, and while the storage material is absorbing hydrogen, the storage material absorbs hydrogen while sending hydrogen from the hydrogen storage means into the mill container. 6. The hydrogen storage device manufacturing apparatus according to claim 5, wherein the hydrogen storage means is provided with a pressurizing device for pressurizing the hydrogen pressure in the mill container.