Active material input device

Abstract

An active material input device according to one embodiment of the present invention comprises: a hopper for accommodating and transferring an active material; a filter plate, which is provided inside the hopper and has at least one through-hole; and a vibrator, which is provided on at least a portion of the filter plate and vibrates the filter plate.

Description

Active material injection device

[0001] The present invention relates to an active material injection device.

[0002] This application claims priority to Korean Patent Application No. 10-2023-0079222, filed on June 20, 2023, and Korean Patent Application No. 10-2024-0025952, filed on February 22, 2024, the entire contents of which are disclosed in the specification and drawings of the above applications are incorporated herein by reference.

[0003] Secondary batteries, which boast high electrical properties such as high energy density and high applicability across a wide range of product categories, are widely used not only in portable devices but also in electric vehicles (EVs) and hybrid electric vehicles (HEVs) powered by electrical power sources. These batteries are attracting attention as a new energy source for environmental friendliness and energy efficiency, not only because they can dramatically reduce fossil fuel use, but also because they produce no byproducts from energy use.

[0004] Currently, widely used types of secondary batteries include lithium-ion batteries, lithium polymer batteries, nickel-cadmium batteries, nickel-metal hydride batteries, and nickel-zinc batteries. The operating voltage of these unit secondary battery cells, i.e., unit battery cells, is approximately 2.5 V to 4.5 V. Therefore, when a higher output voltage is required, multiple battery cells are connected in series to form a battery pack. Furthermore, depending on the charge / discharge capacity required for the battery pack, a number of battery cells are connected in parallel to form a battery pack. Therefore, the number of battery cells included in the battery pack can be set in various ways depending on the required output voltage and / or charge / discharge capacity.

[0005] Meanwhile, in the manufacturing of such secondary batteries, there have been problems such as mesh blockage and delayed feeding due to compaction and bridging of the single-particle active material within the feeding hopper when feeding the cathode single-particle active material. More specifically, there has been a problem in that the clumped active material had to be manually loosened or fed using an air gun, etc.

[0006] The purpose of the present invention is to prevent clumping of active materials when introducing active materials.

[0007] Furthermore, another object of the present invention is to prevent the occurrence of delay in active material injection.

[0008] However, the technical problems to be solved by the present invention are not limited to the problems described above, and other problems not mentioned can be clearly understood by those skilled in the art from the description of the invention described below.

[0009] An active material injection device according to one embodiment of the present invention for solving the above-described problem includes: a hopper for receiving and delivering an active material; a filter plate provided inside the hopper and having at least one through hole; and a vibrator provided on at least a portion of the filter plate and configured to vibrate the filter plate.

[0010] In one aspect of the present invention, the hopper may be configured to have a slope and have a width that decreases as it goes downward.

[0011] In another aspect of the present invention, the cross-section of the hopper may have a circular shape.

[0012] In another aspect of the present invention, an active material injection device characterized in that the through hole is a perforated hole.

[0013] Preferably, a plurality of said through holes may be provided.

[0014] In one aspect of the present invention, the through hole may have a circular or square shape.

[0015] In another aspect of the present invention, the filter plate can extend in a direction perpendicular to the depth direction of the hopper.

[0016] In another aspect of the present invention, the filter plate may be provided at a point half the total depth of the hopper.

[0017] In one aspect of the present invention, the active material injection device may include a plate holder that fixes the filter plate at a predetermined position.

[0018] Here, the plate holder may include an upper holder provided on the upper portion of the filter plate and coupled with the hopper; and a lower holder provided on the lower portion of the filter plate and coupled with the hopper.

[0019] Preferably, the filter plate can be fixed in a state of being interposed between the upper holder and the lower holder.

[0020] In another aspect of the present invention, the upper holder and the lower holder have an O-ring groove with an edge dug inward, and an elastic O-ring can be inserted into the O-ring groove.

[0021] In one aspect of the present invention, the vibrator may be provided in a central area of ​​the filter plate.

[0022] In another aspect of the present invention, the vibrator may be welded onto the filter plate.

[0023] In another aspect of the present invention, the vibrator may be configured to rotate a rotary turbine gear within the vibrator using compressed air.

[0024] According to the present invention, when the active material is added, clumping of the active material does not occur.

[0025] In another aspect, according to the present invention, occurrence of delay in active material injection can be prevented.

[0026] In particular, according to the present invention, the time for introducing a positive electrode single particle active material can be shortened by more than 30% compared to the conventional method.

[0027] However, the effects that can be obtained through the present invention are not limited to the effects described above, and other technical effects not mentioned can be clearly understood by those skilled in the art from the description of the invention described below.

[0028] The following drawings attached to this specification illustrate preferred embodiments of the present invention and, together with the detailed description of the invention described below, serve to further understand the technical idea of ​​the present invention, and therefore, the present invention should not be interpreted as being limited to matters described in such drawings.

[0029] Figure 1 is a drawing for explaining an active material injection device according to one embodiment of the present invention.

[0030] Figure 2 is an exploded perspective view of Figure 1.

[0031] FIG. 3 is a drawing for explaining a filter plate according to one embodiment of the present invention.

[0032] FIG. 4 is a drawing for explaining a filter plate according to another embodiment of the present invention.

[0033] FIG. 5 is a drawing for explaining a filter plate according to another embodiment of the present invention.

[0034] Figure 6 is a front view of an active material injection device according to one embodiment of the present invention.

[0035] Fig. 7 is an enlarged view of a portion of the active material injection device of Fig. 6.

[0036] FIG. 8 is a drawing for explaining a state in which a vibrator according to one embodiment of the present invention is provided on a filter plate.

[0037] FIG. 9 is a drawing for explaining a state in which a vibrator according to another embodiment of the present invention is provided on a filter plate.

[0038] FIG. 10 is a drawing for explaining a vibrator according to one embodiment of the present invention.

[0039] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. Prior to this, it should be noted that the terms and words used in this specification and claims should not be interpreted as limited to their typical or dictionary meanings, and should be interpreted with meanings and concepts that conform to the technical spirit of the present invention based on the principle that the inventor can appropriately define the concept of the term to best explain his or her own invention. Therefore, the embodiments described in this specification and the configurations illustrated in the drawings are only some of the most preferred embodiments of the present invention and do not represent all of the technical spirit of the present invention. Therefore, it should be understood that various equivalents and modified examples may exist as of the time of this application.

[0040] Additionally, to facilitate understanding of the invention, the attached drawings are not drawn to scale and some components may have exaggerated dimensions. Furthermore, identical components may be assigned the same reference numbers in different embodiments.

[0041] The statement that two compared objects are identical means "substantially identical." Therefore, "substantially identical" may include deviations considered low in the art, such as deviations of less than 5%. Furthermore, uniformity of a parameter over a given region may also mean uniformity on average.

[0042] Although terms like "first" and "second" are used to describe various components, these components are not limited by these terms. These terms are used merely to distinguish one component from another, and unless otherwise specified, a "first" component may also be a "second" component.

[0043] Throughout the specification, unless otherwise specifically stated, each element may be singular or plural.

[0044] Any configuration being placed "on (or below)" a component or "on (or below)" a component may mean not only that any configuration is placed in contact with the upper surface (or lower surface) of said component, but also that other configurations may intervene between said component and any configuration placed on (or below) said component.

[0045] Additionally, when it is described that a component is "connected," "coupled," or "connected" to another component, it should be understood that the components may be directly connected or connected to one another, but that other components may also be "interposed" between the components, or that each component may be "connected," "coupled," or "connected" through another component.

[0046] Throughout the specification, when we refer to "A and / or B", this means A, B, or A and B, unless otherwise stated, and when we refer to "C through D", this means C or more and D or less, unless otherwise stated.

[0047]

[0048] FIG. 1 is a drawing for explaining an active material injection device (1) according to one embodiment of the present invention, and FIG. 2 is an exploded perspective view of FIG. 1.

[0049] Referring to FIGS. 1 and 2, the active material input device (1) includes a hopper (10), a filter plate (20), and a vibrator (30). The active material input device (1) may further include a support (40). The active material input device (1) may be a device for inputting positive electrode single particle active materials.

[0050] More specifically, the hopper (10) may be configured to receive and deliver an active material. For example, the hopper (10) may be configured to receive and deliver a positive electrode single particle active material. The filter plate (20) may be provided inside the hopper (10) and configured to have at least one through hole (H). That is, the filter plate may function as a filter net that filters the active material received from the hopper (10). The size of the through hole (H) of the filter plate (20) may be configured to be larger than the size of the active material particles. That is, the agglomerated active materials cannot pass through the through hole (H), and only the non-agglomerated active material particles can pass through the through hole (H) of the filter plate (20). The vibrator (30) may be provided on at least a portion of the filter plate (20) and configured to vibrate the filter plate (20). That is, the vibrator (30) is mounted on the filter plate (20) and vibrates the filter plate (20), so that the active materials accumulated on the filter plate (20) can vibrate together. Accordingly, the clumps of active materials can be pulverized.

[0051] According to the structure of the present invention, the active material fed into the hopper (10) can be prevented from clumping. Furthermore, the clumps of active material that have already been clumped can be crushed by the vibration of the vibrator (30) and broken into fine particles of active material. That is, according to the present invention, compaction of the active material and the bridge phenomenon can be prevented. Accordingly, it becomes easy for the active material particles to pass through the filter plate (20). Therefore, according to the present invention, the phenomenon of clogging of the through-hole (H) of the filter plate (20) can be prevented. In addition, since there is no need for a person to manually crush the clumps of active material by hand or an air conditioner, etc., the phenomenon of delay in feeding the active material can be prevented.

[0052]

[0053] Referring again to FIGS. 1 and 2, the hopper (10) may be configured to have a slope and its width decreases as it goes downward.

[0054] For example, the hopper (10) may be configured to have a roughly conical shape with the apex pointing downward. At this time, the cross-section of the hopper (10) may be configured to have a circular shape. In this case, since the cross-section of the hopper (10) is circular, the possibility of the active material gathering and clumping toward the corners may be reduced compared to a case where the hopper has an angular cross-section. However, the embodiment of the present invention is not limited thereto, and if the hopper (10) has a sloped surface and its width decreases as it goes downward, it is of course included in the scope of the present invention. For example, shapes such as a triangular pyramid, a square pyramid, a pentagonal pyramid, and a hexagonal pyramid may be included in the scope of the present invention.

[0055]

[0056] In another aspect, the hopper (10) may include an inlet (11) for receiving an active material and an outlet (12) for discharging the active material. For example, referring to FIGS. 1 and 2, the inlet (11) may be provided at a point having the widest diameter of the hopper (10). That is, the inlet (11) may be located at the top of the hopper (10). The diameter of the hopper (10) may decrease as it goes downward. At this time, the outlet (12) may be provided at a point having the narrowest diameter of the hopper (10). That is, the outlet (12) may be located at the bottommost end of the hopper (10).

[0057]

[0058] Fig. 3 is a drawing for explaining a filter plate (20) according to one embodiment of the present invention, and Fig. 4 is a drawing for explaining a filter plate (20) according to another embodiment of the present invention. Fig. 5 is a drawing for explaining a filter plate (20) according to yet another embodiment of the present invention.

[0059] In one aspect of the present invention, the filter plate (20) may have at least one through hole (H). The through hole (H) is a hole that penetrates the filter filtrate, and its shape is not limited. That is, the through hole (H) means a hole formed in the filter plate (20).

[0060] Preferably, the through hole (H) may be a perforated hole. That is, the through hole (H) of the filter plate (20) may be a hole formed by perforation.

[0061] For example, in the past, there were cases where the filter plate (20) was configured in a wire shape. For example, there were cases where the filter plate (20) was configured in a manner of forming a mesh net by weaving wires constituting the horizontal axis and wires constituting the vertical axis. However, when applying a wire-shaped filter plate (20) in this way, friction may occur between the wire metal foreign bodies due to the vibration of the vibrator (30). Due to such friction, there is a risk of the foreign bodies being ground between the metals. On the other hand, the present invention configures the filter plate (20) in a perforated shape rather than a wire shape, so that even if vibration occurs, friction between the metal foreign bodies is fundamentally blocked. Therefore, the risk of the foreign bodies being ground due to friction between the metal foreign bodies can be blocked.

[0062]

[0063] In another aspect of the present invention, a plurality of through holes (H) may be provided.

[0064] For example, referring to FIGS. 3 to 5, a plurality of through holes (H) may be provided on the filter plate (20). More specifically, a plurality of through holes (H) may be provided in a regular arrangement on the filter plate (20). At this time, the through holes (H) may have a circular or rectangular shape. For example, when the through holes (H) have a rectangular shape, the length of one side of the through holes (H) may be set to about 20 mm. At this time, the width of the area between the through holes (H) may be set to about 2 mm. Alternatively, the through holes (H) may have a hexagonal shape. The shape of the through holes (H) is not particularly limited, and any shape that can be punched may be included in the shape of the through holes (H) of the present invention.

[0065]

[0066] In another aspect of the present invention, the filter plate (20) may include at least one handle (23).

[0067] For example, referring to Fig. 4, a handle (23) protruding upward may be provided on the filter plate (20). In the embodiment of Fig. 4, the handle (23) may be provided at a position symmetrical with respect to an imaginary line passing through the center of the filter plate (20).

[0068] According to this configuration of the present invention, a worker can manually vibrate the handle (23) to generate additional vibrations in the filter plate (20). Alternatively, the handle (23) can facilitate the removal and attachment of the filter plate (20).

[0069]

[0070] In another aspect of the present invention, the filter plate (20) may be configured to have a substantially circular plate shape. For example, referring to FIGS. 3 and 4, the filter plate (20) may be configured to have a substantially circular plate shape. In this case, since the cross-section of the hopper (10) on which the filter plate (20) is mounted must also have a substantially circular shape, the hopper (10) may be configured to have a substantially conical shape with the apex pointing downward.

[0071] Meanwhile, as another embodiment, referring to FIG. 5, the filter plate (20) may be configured to have an approximately rectangular plate shape. In this case, since the cross-section of the hopper (10) on which the filter plate (20) is mounted must also have an approximately rectangular shape, the hopper (10) may be configured to have an approximately square pyramid shape with the apex pointing downward. However, the shape of the filter plate (20) is not limited thereto, and any plate shape having various shapes may be included within the scope of the filter plate (20) of the present invention.

[0072] In addition, the shape of the filter plate (20) and the shape of the through hole (H) do not always match. For example, as shown in FIG. 3, a case in which the filter plate (20) is circular and the through hole (H) is circular is also possible, and as shown in FIG. 5, a case in which the filter plate (20) is square and the through hole (H) is square is also possible. In addition, as shown in FIG. 8, a case in which the filter plate (20) is circular and the through hole (H) is square is also possible. In other words, the shape of the filter plate (20) and the shape of the through hole (H) are not influenced by each other and various combinations are possible.

[0073]

[0074] Fig. 6 is a front view of an active material injection device (1) according to one embodiment of the present invention, and Fig. 7 is an enlarged view of a part of the active material injection device (1) of Fig. 6.

[0075] Referring to FIGS. 6 and 7, the filter plate (20) may be configured to extend in a direction perpendicular to the depth direction of the hopper (10). That is, the hopper (10) is configured in a roughly cone shape extending in the vertical direction, and at this time, the depth direction may be parallel to the vertical direction. Here, the filter plate (20) may be configured to extend in a direction perpendicular to the depth direction of the hopper (10), that is, in the horizontal direction. Considering that the active material input device (1) is generally installed on the ground, the filter plate (20) may extend in a direction parallel to the ground.

[0076] With this structure, the active material can be evenly distributed without being concentrated in a specific area on the filter plate (20). Accordingly, the active material can be smoothly and efficiently discharged downward through the plurality of through holes (H) arranged on the filter plate (20). Therefore, with this structure, the occurrence of bottleneck phenomena, etc. can be prevented.

[0077]

[0078] In another aspect of the present invention, the filter plate (20) may be provided in the area between the inlet (11) and the outlet (12) of the hopper (10). For example, referring to FIG. 6, the filter plate (20) may be configured to be positioned at a point approximately 1 / 2 of the total depth of the hopper (10). In this way, the filter plate (20) can primarily prevent agglomeration of the active material inside the hopper (10) by having a structure in which the filter plate (20) is provided in the area between the inlet (11) and the outlet (12) of the hopper (10). In addition, agglomeration of the active material can be additionally prevented during the process of being discharged through the outlet (12) of the hopper (10). In some cases, a plurality of filter plates (20) may be provided in the area between the inlet (11) and the outlet (12) of the hopper (10). According to this embodiment, the effect of preventing agglomeration of active materials can be further improved.

[0079]

[0080] In another aspect of the present invention, the active material input device (1) may include a plate holder (25) that fixes the filter plate (20) to a predetermined position. The plate holder (25) may be configured to be fixed on a hopper (10). For example, the side surface of the hopper (10) may be configured such that the diameter thereof decreases as it goes down, but may have a structure having a step including a section in which the diameter does not decrease but remains constant in a specific region and extends horizontally toward the radial center of the hopper. In this case, the plate holder (25) may be configured to be seated on the step provided on the hopper. Accordingly, the plate holder (25) may be stably mounted on the hopper (10). Furthermore, in order to improve the fixing force, the plate holder (25) and the hopper (10) may be coupled by an additional coupling means. The coupling method is not particularly limited.

[0081]

[0082] In one aspect of the present invention, the plate holder (25) may include an upper holder (251) provided on the upper portion of the filter plate (20) and coupled with the hopper (10); and a lower holder (252) provided on the lower portion of the filter plate (20) and coupled with the hopper (10).

[0083] For example, referring to FIG. 7, the lower holder (252) can support the lower portion of the filter plate (20). At this time, a square bar can be applied to the lower portion of the lower holder (252). With this structure, the lower holder (252) and the filter plate (20) cannot escape downward. Meanwhile, the filter plate (20) can be mounted on the lower holder (252), and the upper holder (251) can be mounted on the filter plate (20). That is, the filter plate (20) can be fixed in a state of being interposed between the upper holder (251) and the lower holder (252).

[0084] The upper holder (251) may be configured to prevent the filter plate (20) from being separated upward. For example, since vibration is transmitted to the filter plate (20) by the vibration of the vibrator (30), the upper holder (251) needs to fix the filter plate (20) to prevent the filter plate (20) from being separated from the holder by the vibration. At this time, it is preferable that the upper holder (251) and the lower holder (252) are coupled to each other. That is, the upper holder (251) and the lower holder (252) may be fixed to each other, for example, by screw coupling, with the filter plate (20) interposed therebetween. However, the coupling method is not limited thereto.

[0085]

[0086] In another aspect of the present invention, the upper holder (251) and the lower holder (252) may be provided with an O-ring groove (253) whose edge is dug inward. At this time, an O-ring (R) having elasticity may be inserted into the O-ring groove (253). The O-ring (R) may be configured to have, for example, a rim shape. The cross-section of the O-ring (R) may be, for example, approximately a semicircular shape as can be seen in FIG. 7. Depending on the shape of the O-ring groove (253), the cross-section shape of the O-ring (R) may vary. For example, the cross-section shape of the O-ring (R) and the cross-section shape of the O-ring groove (253) may be configured to match each other. With this configuration, the bonding force between the plate holder (25) and the hopper (10) may be further strengthened.

[0087] Meanwhile, the O-ring (R) may include, for example, silicone. Alternatively, the O-ring (R) may include rubber. In other words, the O-ring (R) may include an elastic material. In addition, the O-ring (R) allows the filter plate (20) to be fixed to a certain position of the hopper (10) by frictional force. Meanwhile, in one embodiment of the active material input device (1) of the present invention, a stopper may be applied to minimize the clearance between the hopper (10) and the plate holder (25).

[0088]

[0089] FIG. 8 is a drawing for explaining a state in which a vibrator (30) according to one embodiment of the present invention is provided on a filter plate (20), and FIG. 9 is a drawing for explaining a state in which a vibrator (30) according to another embodiment of the present invention is provided on a filter plate (20). FIG. 10 is a drawing for explaining a vibrator (30) according to one embodiment of the present invention.

[0090] Referring to FIGS. 8 to 10, the vibrator (30) may be provided in the inner region of the filter plate (20). That is, the vibrator (30) may be provided in the inner space of the edge, rather than the edge region of the filter plate (20). Preferably, the vibrator (30) may be provided in the central region of the filter plate (20). For example, referring to FIG. 8, the filter plate (20) may have an approximately circular plate shape. In this case, the vibrator (30) may be mounted in the central region of the filter plate (20).

[0091] According to the structure in which the vibrator (30) is provided in the inner region of the filter plate (20) rather than the edge region of the filter plate (20), the vibration generated from the vibrator (30) can be uniformly transmitted to the filter plate (20). For example, the intensity of the vibration is the strongest at the point where the vibrator (30) is provided, and the intensity of the vibration becomes weaker as it moves away from it. If the vibrator (30) is provided at one end of the filter plate (20), the greatest vibration occurs at the point where the vibrator (30) is provided, and the vibration becomes weakest at the opposite point farthest from it, so the intensity of the vibration becomes uneven in the edge region of the filter plate (20). On the other hand, when the vibrator (30) is provided in the central region of the filter plate (20), the vibration intensity is the greatest in the central region of the filter plate (20) and decreases as it moves away in the radial direction, so that vibration of the same intensity occurs at all points in the edge region of the filter plate (20). Meanwhile, when the active material powders are fed into the hopper (10), since the largest number of active material particles generally accumulate in the central region, it is necessary to generate vibration of the greatest intensity in the central region. Conversely, since a relatively small amount of active material particles accumulates in the edge region, clumps of active material can be pulverized even when vibration of relatively low intensity is generated. Therefore, according to the present invention, the most efficient effect of preventing clumping and pulverizing active material can be achieved.

[0092]

[0093] In another embodiment of the present invention, referring to FIG. 9, the vibrators (30) may be provided in multiple numbers in the inner region of the filter plate (20). In this case, the mounting positions of the vibrators (30) may be set so that they can generate a uniform vibration intensity at all points on the filter plate (20). For example, referring to FIG. 9, the vibrators (30) may be arranged at 120-degree intervals in the inner region of the filter plate (20). With this configuration, a uniform vibration intensity can be generated in the entire region of the filter plate (20).

[0094]

[0095] In another aspect of the present invention, the vibrator (30) may be joined to the filter plate (20), for example, by welding. Alternatively, the vibrator (30) may be joined to the filter plate (20) by bolting. However, the method of joining the vibrator (30) and the filter plate (20) is not limited thereto.

[0096]

[0097] In one aspect of the present invention, the vibrator (30) may be a machine that generates vibrations. The vibrator (30) of the present invention may be, for example, an air turbine vibrator (30). That is, the vibrator (30) may generate vibrations by rotating a rotary turbine gear inside the machine using compressed air.

[0098] Referring to FIG. 11, the vibrator (30) may include a support portion (31), a main body portion (32), an inlet (33), and an outlet (34).

[0099] The above support member (31) supports the vibrator (30), and the vibrator (30) can be fixed on the filter plate (20) through the support member (31). The support member (31) can be joined to the filter plate (20) by, for example, welding. Alternatively, the support member (31) can be joined to the filter plate (20) by bolting. However, the joining method is not limited thereto, and the vibrator (30) can be joined to the filter plate (20) through various joining methods.

[0100] The above-mentioned main body (32) may include a rotary turbine gear included within a vibrator (30). The rotary turbine gear may be rotated by compressed air. As the rotary turbine gear rotates, a vibration force may be generated, and thus the vibration may be transmitted to a filter plate (20) connected through a support member (31) of the vibrator (30).

[0101] The compressed air may be introduced into the main body (32) of the vibrator (30) through the inlet (33) provided in the vibrator (30). The compressed air may rotate the rotary turbine gear of the main body (32) and then be discharged to the outside through the outlet (34). The inlet (33) and the outlet (34) may be provided in the upper region of the vibrator (30). The inlet (33) and the outlet (34) may be connected to a hose capable of moving a fluid. A flow of the fluid may be provided through the hose.

[0102] According to this structure, the vibrator (30) can be miniaturized, has a simple structure, and is easy to install. In addition, a low-noise structure can be applied. In addition, the vibration output can be adjusted by adjusting the air pressure. That is, according to the above configuration, the intensity of the active material injection can be adjusted by adjusting the air pressure. In addition, according to the above configuration, the risk of gas explosion due to the use of air is eliminated. Furthermore, according to the above structure of the vibrator (30) of the present invention, the vibrator (30) can have a semi-permanent lifespan. However, the type of the vibrator (30) of the present invention is not limited thereto, and any device having a vibration function can be included in the scope of the vibrator (30) of the present invention.

[0103]

[0104] Referring back to FIG. 1, the support (40) may be configured to support the active material injection device (1). For example, a plurality of the support (40) may be provided around the periphery of the active material injection device (1). For example, three or more of the support (40) may be provided on the outer circumference of the active material injection device (1). The shape of the support (40) is not particularly limited, and for example, a cylindrical or square pillar shape may be applied.

[0105]

[0106] According to the configuration of the present invention as described above, the present invention can shorten the time for inserting active material through installation of a vibrator (30). Through the following experiments, it was confirmed that the perforated structure of the filter plate (20) of the present invention and the provision of a vibrator (30) prevented the agglomeration of active material and smoothly crushed the already agglomerated active material.

[0107] For example, when 500 kg of a specific active material was fed into a conventional active material feeding device, the feeding time was about 240 min, but when fed into an active material feeding device (1) according to an embodiment of the present invention, the feeding time could be shortened to about 170 min or less. That is, according to the present invention, the feeding time of a positive electrode single particle active material was shortened by about 30% or more compared to the conventional method. In particular, according to the active material feeding device (1) of the present invention, when 20 kg of the specific active material was fed, the feeding could be completed within 2 min.

[0108] In another experiment, in the case of a conventional active material injection device, injection was impossible except by a separate physical method due to compaction of the active material, so the active material had to be injected in small amounts. For example, based on OT-H4S 750KG of active material, it took about 105 minutes for all of the active material to be injected. On the other hand, as a result of an experiment of injecting active material using the active material injection device (1) of the present invention, it was confirmed that there was no delay in the injection of active material into the filter plate (20), and that the intensity of active material injection could be adjusted according to the hydraulic pressure, so that based on OT-H4S 750KG, it took about 80 minutes for all of the active material to be injected. That is, according to the present invention, for example, it was confirmed that the active material injection time was shortened by about 30% from about 105 minutes to about 80 minutes based on OT-H4S 750KG. Accordingly, it was confirmed that the application of a vibrator (30) within the filter plate (20) enables the effective injection of a positive electrode single particle active material, and that the intensity of the active material injection can be controlled depending on the air pressure. In addition, according to the present invention, since the injection of a positive electrode single particle active material is more effective, the LOB margin can be secured.

[0109]

[0110] Although the present invention has been described above with reference to limited embodiments and drawings, the present invention is not limited thereto, and it is obvious that various modifications and variations are possible within the scope of the technical idea of ​​the present invention and the equivalent scope of the patent claims to be described below by a person having ordinary skill in the art to which the present invention pertains.

[0111]

[0112] [Explanation of symbols]

[0113] 1 Active material injection device

[0114] 10 hoppers

[0115] 11 input ports

[0116] 12 exhaust ports

[0117] 20 filter plates

[0118] H penetration

[0119] 23 handles

[0120] 25 plate holders

[0121] 251 Upper Holder

[0122] 252 Lower Holder

[0123] 253 O-ring home

[0124] R O-ring

[0125] 30 vibrators

[0126] 31 Support

[0127] 32 Main Body

[0128] 33 Inlet

[0129] 34 outlet

[0130] 40 supports

Claims

1. A hopper that receives and delivers active materials; A filter plate provided inside the hopper and having at least one through hole; and A vibrator provided on at least a portion of the filter plate and configured to vibrate the filter plate. An active material injection device including:

2. In paragraph 1, An active material input device characterized in that the above hopper has a slope and is configured such that its width decreases as it goes down.

3. In paragraph 1, An active material input device characterized in that the cross-section of the above hopper has a circular shape.

4. In paragraph 1, An active material injection device characterized in that the above through hole is a perforated hole.

5. In paragraph 1, An active material injection device characterized in that a plurality of the above through holes are provided.

6. In paragraph 1, An active material injection device characterized in that the above-mentioned through hole has a circular or square shape.

7. In paragraph 1, An active material input device characterized in that the filter plate extends in a direction perpendicular to the depth direction of the hopper.

8. In paragraph 1, An active material input device characterized in that the filter plate is provided at a point half the total depth of the hopper.

9. In paragraph 1, An active material injection device characterized in that the active material injection device includes a plate holder that fixes the filter plate at a predetermined position.

10. In paragraph 9, The above plate holder, An upper holder provided on the upper part of the above filter plate and coupled with the above hopper; and An active material input device characterized by including a lower holder provided at the lower portion of the above filter plate and coupled with the above hopper.

11. In paragraph 10, An active material injection device characterized in that the filter plate is fixed in a state interposed between the upper holder and the lower holder.

12. In paragraph 10, An active material injection device characterized in that the upper holder and the lower holder have an O-ring groove with an edge dug inward, and an elastic O-ring is inserted into the O-ring groove.

13. In paragraph 1, An active material injection device characterized in that the vibrator is provided in the central area of ​​the filter plate.

14. In paragraph 1, An active material injection device characterized in that the vibrator is welded onto the filter plate.

15. In paragraph 1, An active material injection device characterized in that the above vibrator is configured to rotate a rotary turbine gear inside the vibrator using compressed air.

Images