Apparatus for cleaning cylindrical battery cell, cylindrical battery cell produced using same, battery pack including cylindrical battery cell, and vehicle

Abstract

Disclosed are an apparatus for cleaning a cylindrical battery cell, a cylindrical battery cell produced using the apparatus, a battery pack including the cylindrical battery cell, and a vehicle. The apparatus for cleaning a cylindrical battery cell according to one embodiment of the present disclosure comprises: a rotating member coupled to a cell carrier on which a cylindrical battery cell is disposed and rotated by being coupled to a rotating shaft; the fixing component is arranged on the outer side of the rotating component and is in contact with the battery cell carrier, so that when the rotating component rotates, the battery cell carrier rotates along with the rotation of the rotating component; and the spraying component is used for spraying clean water towards the cylindrical battery cell arranged on the battery cell carrier.

Description

Technical Field

[0001] This application claims priority to Korean Patent Application No. 10-2022-0179855 filed on December 20, 2022 and Korean Patent Application No. 10-2023-0185491 filed on December 19, 2023, the disclosures of which are incorporated herein by reference.

[0002] The present disclosure relates to a cylindrical battery cell cleaning device, cylindrical battery cells produced using the same, and battery packs and vehicles including the cylindrical battery cells, and more specifically, to a cylindrical battery cell cleaning device capable of fully cleaning cylindrical battery cells of various sizes, cylindrical battery cells produced using the same, and battery packs and vehicles including the cylindrical battery cells. Background Art

[0003] Secondary batteries have high applicability according to product groups and electrical characteristics such as high energy density, and thus are generally applied not only to portable devices but also to electric vehicles (EVs) or hybrid electric vehicles (HEVs) driven by a power source.

[0004] Such a secondary battery is receiving attention as a new energy source to improve eco-friendliness and energy efficiency because it has not only the major advantage of significantly reducing the use of fossil fuels but also no byproducts generated by the use of energy.

[0005] Currently widely used secondary batteries include lithium ion batteries, lithium polymer batteries, nickel cadmium batteries, nickel hydrogen batteries, nickel zinc batteries, etc. The operating voltage of such unit secondary battery cells is about 2.5V to 4.5V.

[0006] Therefore, when a higher output voltage is required, a plurality of battery cells may be connected in series to configure a battery module or a battery pack. In addition, depending on the required charge / discharge capacity, a plurality of battery cells may also be connected in parallel to configure a battery module or a battery pack. Therefore, the number of battery cells included in a battery module or a battery pack and the type of electrical connection may be differently set according to at least one of the required output voltage and the required charge / discharge capacity.

[0007] Cylindrical, square and pouch-type battery cells are known as types of secondary battery cells. In the case of a cylindrical battery cell, a separator (which is an insulator) is inserted between a positive electrode plate and a negative electrode plate and wound to form a jellyroll-type electrode assembly, which is then inserted into a battery can together with an electrolyte to form a battery. Also, in a cylindrical battery cell, a current collector plate may be used to electrically connect the positive electrode plate and the negative electrode plate, respectively.

[0008] In addition, the cylindrical battery cells undergo various processes during production, and in particular, a cleaning process is performed.

[0009] In the prior art, when the cylindrical battery cell is cleaned while being moved, cleaning water does not reach it, resulting in a dead corner that is not cleaned, and thus, there is a problem that cleaning is not sufficiently performed. Summary of the invention

[0010] Technical issues

[0011] The present disclosure aims to solve the problems of the related art, and thus the present disclosure aims to provide a cylindrical battery cell cleaning device capable of fully cleaning a cylindrical battery cell, a cylindrical battery cell produced using the same, and a battery pack and a vehicle including the cylindrical battery cell.

[0012] The present disclosure also relates to providing a cylindrical battery cell cleaning device capable of maintaining cleaning power even for cylindrical battery cells of various sizes, a cylindrical battery cell produced using the same, and a battery pack and a vehicle including the cylindrical battery cell.

[0013] However, the technical problems to be solved by the present disclosure are not limited to the above problems, and those skilled in the art can clearly understand other problems not mentioned herein through the following description of the present disclosure.

[0014] Technical Solution

[0015] According to one aspect of the present disclosure, a cylindrical battery cell cleaning device may be provided, comprising: a rotating member, which is connected to a cell carrier and rotates by being connected to a rotating shaft, and a cylindrical battery cell is placed on the cell carrier; a fixed member, which is disposed on the outer side of the rotating member and is in contact with the cell carrier so that when the rotating member rotates, the cell carrier rotates along with the rotation of the rotating member; and a spraying member, which sprays cleaning water toward the cylindrical battery cell placed on the cell carrier.

[0016] In one embodiment, the rotating member may include: a first member supporting a bottom of the cell carrier; and a second member supporting a side surface of the cell carrier.

[0017] In one embodiment, the first member may have a first concave portion formed to be concave inwardly in a circumferential portion of the first member so that the cleaning water sprayed from the spray member may be discharged.

[0018] In one embodiment, a discharge hole may be formed in the bottom of the cell carrier, a groove may be formed in the first concave portion, and the discharge hole and the groove may communicate with each other.

[0019] In one embodiment, the second member may have a second concave portion formed to be inwardly concave in a circumferential portion of the second member so that the cell carrier may be coupled with the second concave portion.

[0020] In one embodiment, a groove may be formed in the second concave portion, and the side surface of the cell carrier may be inserted into and supported by the groove.

[0021] In one embodiment, the cell carrier may have a circular outermost cross-section such that one side may be inserted into the second recessed portion and the other side may contact the fixing member, and when the rotating member rotates, the cell carrier may rotate along the contact surface of the fixing member.

[0022] In one embodiment, a friction providing portion may be formed on the contact surface of the fixing member.

[0023] In one embodiment, the friction providing portion may include at least one O-ring coupled to the contact surface along the contact surface of the fixing member.

[0024] In one embodiment, the O-ring may be made of rubber.

[0025] In one embodiment, a carrier supporting portion may be coupled to the rotating member to support the rotating cell carrier.

[0026] In one embodiment, the carrier supporting portion may be in contact with the cell carrier at a lower side of the cell carrier.

[0027] In one embodiment, the carrier support portion may be configured as a bearing.

[0028] In one embodiment, the bearing may be made of polyetheretherketone (PEEK) material.

[0029] In one embodiment, the first concave portion may be plural, and the carrier support portion may be coupled to the first member between any one of the plurality of first concave portions and another adjacent first concave portion.

[0030] In one embodiment, when the rotating member rotates, the cell carrier may rotate in a direction opposite to the rotating direction of the rotating member.

[0031] In one embodiment, the spraying member may include at least one spraying nozzle disposed to face the cylindrical battery cells mounted on the cell carrier.

[0032] In addition, according to another aspect of the present disclosure, a cylindrical battery cell produced using the above cylindrical battery cell cleaning device may be provided, a battery pack including at least one above cylindrical battery cell may be provided, and a vehicle including at least one above cylindrical battery cell may be provided.

[0033] Beneficial Effects

[0034] The embodiment of the present disclosure has the effect of sufficiently cleaning the cylindrical battery cells because the cell carrier on which the cylindrical battery cells are mounted moves while rotating.

[0035] In addition, cleaning power is maintained even for cylindrical battery cells of various sizes.

[0036] However, the effects to be obtained by the present disclosure are not limited to the above-mentioned effects, and those skilled in the art may clearly understand other technical effects not mentioned herein through the following description of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings illustrate preferred embodiments of the present disclosure and, together with the foregoing disclosure, are used to provide a further understanding of the technical features of the present disclosure, and thus the present disclosure is not to be construed as being limited to the accompanying drawings.

[0038] Figure 1 is a diagram schematically showing the interior of a cylindrical battery cell cleaning device according to an embodiment of the present disclosure.

[0039] Figure 2 is a schematic partial stereoscopic view of a cylindrical battery cell cleaning device according to an embodiment of the present disclosure.

[0040] Figure 3 is an enlarged view of a state in which a cell carrier having mounted battery cells is coupled to a rotating member in a cylindrical battery cell cleaning device according to an embodiment of the present disclosure.

[0041] Figure 4 is a partial plan view of a cylindrical battery cell cleaning device according to an embodiment of the present disclosure.

[0042] Figure 5 and Figure 6 is a diagram illustrating a process in which a cell carrier moves while being rotated by a rotating member in the cylindrical battery cell cleaning device according to an embodiment of the present disclosure, and a second member of the rotating member is omitted.

[0043] Figure 7is a diagram illustrating a state in which a friction providing portion is formed on a contact surface of a fixing member in a cylindrical battery cell cleaning device according to an embodiment of the present disclosure.

[0044] Figure 8 is a diagram showing a bottom surface of a rotating member in a cylindrical battery cell cleaning device according to an embodiment of the present disclosure, and shows a state in which a first member supports a bottom of a cell carrier.

[0045] Fig. 9 is a diagram schematically illustrating a configuration of a battery pack including cylindrical battery cells produced using the cylindrical battery cell cleaning device according to each embodiment of the present disclosure.

[0046] Fig.10 It is used to describe Fig. 9 Diagram of a battery pack for a vehicle. DETAILED DESCRIPTION

[0047] The preferred embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. The terms used in the specification and the appended claims should not be interpreted as limited to the general meaning and dictionary meaning, but should be interpreted based on the meaning and concept corresponding to the technical aspects of the present disclosure according to the principle that allows the inventor to appropriately define the terms for the best interpretation. Therefore, the embodiments described in this specification and the configuration shown in the accompanying drawings are only one of the most preferred embodiments of the present disclosure and are not intended to fully represent the technical aspects of the present disclosure, so it should be understood that various equivalents and modifications may be made to them when submitting this application.

[0048] In the accompanying drawings, for the convenience and clarity of description, the size of each component or a specific part of a component is exaggerated, omitted or schematically shown. Therefore, the size of each component does not fully reflect the actual size. If it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the main points of the present disclosure, such description will be omitted.

[0049] As used herein, the term 'coupled' or 'connected' refers not only to a case where one member is directly coupled or directly connected to another member, but also to a case where one member is indirectly coupled or indirectly connected to another member through a joining member.

[0050] Figure 1 is a diagram schematically showing the interior of a cylindrical battery cell cleaning device according to an embodiment of the present disclosure, Figure 2 is a schematic partial stereogram of a cylindrical battery cell cleaning device according to an embodiment of the present disclosure, Figure 3 is an enlarged view of a state in which a cell carrier having mounted battery cells is coupled to a rotating member in a cylindrical battery cell cleaning device according to an embodiment of the present disclosure, Figure 4is a partial plan view of a cylindrical battery cell cleaning device according to an embodiment of the present disclosure, Figure 5 and Figure 6 is a diagram showing a process in which a cell carrier moves while being rotated by a rotating member in a cylindrical battery cell cleaning device according to an embodiment of the present disclosure, and a second member of the rotating member is omitted, Figure 7 is a diagram showing a state in which a friction providing portion is formed on a contact surface of a fixing member in a cylindrical battery cell cleaning device according to an embodiment of the present disclosure, and Figure 8 is a diagram showing a bottom surface of a rotating member in a cylindrical battery cell cleaning device according to an embodiment of the present disclosure, and shows a state in which a first member supports a bottom of a cell carrier.

[0051] The cylindrical battery cell cleaning device 10 according to an embodiment of the present disclosure is a device for cleaning the cylindrical battery cells 20 using clean water during a manufacturing process of the cylindrical battery cells 20 .

[0052] Here, the cylindrical battery cell 20 may include an electrode assembly, a battery can, and a cap plate.

[0053] The electrode assembly has a structure in which a positive electrode plate, a negative electrode plate, and a separator interposed between the positive electrode plate and the negative electrode plate are wound in one direction, and a central hole is formed at the center of the electrode assembly, and the electrode assembly may be formed into a core-wound type.

[0054] For example, the electrode assembly may be manufactured by winding a laminate formed by sequentially stacking a negative electrode plate, a separator, a positive electrode plate, and a separator at least once. Here, the positive electrode plate and the negative electrode plate may be formed in a sheet shape.

[0055] That is, the electrode assembly applied to the present embodiment may be a wound type electrode assembly. In this case, an additional separator may be further provided on the outer peripheral surface of the electrode assembly for insulation from the battery can. That is, the electrode assembly may have a winding structure well known in the prior art without limitation.

[0056] The positive electrode active material may be applied to one or both sides of the positive electrode plate, and a first uncoated portion to which the positive electrode active material is not applied may be formed at the end of the positive electrode plate. The first uncoated portion is exposed to the outside of the separator while forming a plurality of winding turns around the center of the electrode assembly, and itself may be used as an electrode tab. However, the first uncoated portion may not be formed on the positive electrode plate.

[0057] The negative electrode active material may be applied to one or both sides of the negative electrode plate, and a second uncoated portion to which the negative electrode active material is not applied may be formed at the end of the negative electrode plate. The second uncoated portion is exposed to the outside of the separator while forming a plurality of winding turns around the center of the electrode assembly, and itself may be used as an electrode tab. However, the second uncoated portion may not be formed on the negative electrode plate.

[0058] Here, when the positive electrode plate and the negative electrode plate each include an uncoated portion, the first uncoated portion and the second uncoated portion may be configured to face opposite directions.

[0059] Also, the positive electrode active material coated on the positive electrode plate and the negative electrode active material coated on the negative electrode plate may be used without limitation as long as they are active materials known in the art.

[0060] The separator may be a porous polymer film, for example, a porous polymer film made of a polyolefin-based polymer such as ethylene homopolymer, propylene homopolymer, ethylene / butene copolymer, ethylene / hexene copolymer, and ethylene / methacrylate copolymer alone or in a stacked structure thereof.

[0061] As another example, the separator may be a conventional porous non-woven fabric, for example, a non-woven fabric made of high melting point glass fiber, polyethylene terephthalate fiber, or the like.

[0062] At least one surface of the diaphragm may include a coating of inorganic particles. In addition, the diaphragm itself may be formed by a coating of inorganic particles. The particles constituting the coating may have a structure coupled with a binder such that there is a gap volume between adjacent particles.

[0063] Furthermore, the central hole of the electrode assembly is also used to weld the cell terminal (positive terminal) and the positive current collector plate. That is, it can be configured to weld the cell terminal and the positive current collector plate by irradiating a laser through the central hole of the electrode assembly.

[0064] The electrode assembly is accommodated in the battery can. And, a through hole may be formed in the battery can. Here, the battery can is formed in a cylindrical shape so that the electrode assembly is accommodated inside the battery can and may be electrically connected to the negative electrode plate of the electrode assembly. Therefore, the battery can has the same polarity as the negative electrode plate (i.e., negative electrode).

[0065] The diameter of the battery can is formed to be larger than the diameter of the electrode assembly. A gap of a preset size is formed between the battery can and the positive electrode collector plate, and an insulator may be inserted in the gap.

[0066] If the size of a battery can is set according to a standard and then the size of an electrode assembly is increased, the total capacity of a cylindrical battery cell increases, but a gap between the battery can and the electrode assembly decreases.

[0067] That is, since increasing the size of the electrode assembly to increase the total capacity of the cylindrical battery cell reduces the gap between the battery can and the electrode assembly, the insulator should be able to be inserted into the reduced gap between the battery can and the electrode assembly to increase the capacity of the cylindrical battery cell, and to this end, the thickness of the insulator is preferably as thin as possible.

[0068] The battery can is a substantially cylindrical container that can be made of a conductive material such as metal. The material of the battery can can be made of a conductive metal such as aluminum, steel, stainless steel, etc., but is not limited thereto.

[0069] The positive current collector plate is electrically connected to the positive electrode plate, for example, at the top of the electrode assembly. For example, the positive current collector plate is made of a conductive metal material and can be electrically connected to the first uncoated portion of the positive electrode plate.

[0070] The cell terminal is made of a conductive metal material and is electrically connected to the positive electrode collector plate. Also, the cell terminal is electrically connected to the positive electrode plate of the electrode assembly through the positive electrode collector plate and has a positive polarity.

[0071] That is, the cell terminal may be used as a positive terminal. Also, the battery can is electrically connected to the negative electrode plate of the electrode assembly as described above, and may have a negative polarity.

[0072] The negative current collector plate is electrically connected to the negative plate, for example, at the bottom of the electrode assembly. For example, the negative current collector plate is made of a conductive metal material (such as aluminum, steel, copper, nickel, etc.) and can be electrically connected to the second uncoated portion of the negative plate.

[0073] The negative electrode collector plate may be electrically connected to the battery can. To this end, the negative electrode collector plate may be fixed with at least a portion of its edge portion inserted between the inner surface of the battery can and the sealing gasket.

[0074] In one embodiment, at least a portion of the edge portion of the negative electrode current collector plate may be fixed to the bead portion by welding while being supported on a bottom surface of the bead portion formed at the bottom of the battery can.

[0075] Also, at least a portion of the remaining portion excluding the coupling portion of the edge pressing portion of the negative electrode collector plate may be coupled to the curved surface of the second non-coating portion by welding (eg, laser welding).

[0076] In addition, at least a portion of an edge of the negative electrode current collector plate may be electrically coupled to a surface adjacent to the clamping portion among the upper and lower surfaces of the edge pressing portion.

[0077] The cover plate is configured to seal an opening formed at the bottom of the battery can. The cover plate may be made of, for example, a metal material to ensure rigidity.

[0078] Also, the cap plate may be separated from the electrode assembly and may be provided as non-polar. That is, even if the cap plate is made of a conductive metal material, the cap plate may not have polarity.

[0079] The fact that the cover plate has no polarity means that the cover plate is electrically insulated from the battery can and the battery cell terminals. Therefore, the cover plate does not need to be polarized and its material does not need to be a conductive metal.

[0080] The cover plate may be supported by being placed on a press edge portion formed on the battery can. In addition, the cover plate is fixed by a clamping portion to be described later. A sealing gasket may be inserted between the cover plate and the clamping portion of the battery can to ensure airtightness of the battery can. That is, the sealing gasket may be configured to be inserted between the edge of the cover plate and the opening of the battery can.

[0081] Reference Figure 1 and Figure 2 , a cylindrical battery cell cleaning device 10 according to an embodiment of the present disclosure includes a rotating member 100 , a fixing member 200 , and a spraying member 300 .

[0082] The rotating member 100 is configured to rotate by being coupled to the rotating shaft 500. Also, the cell carrier 400 on which the cylindrical battery cells 20 are seated is coupled to the rotating member 100. That is, when the rotating member 100 rotates, the cell carrier 400 coupled to the rotating member 100 moves in the rotation direction of the rotating member 100. Also, the cylindrical battery cells 20 seated on the cell carrier 400 move together with the cell carrier 400.

[0083] Reference Figure 2 and Figure 3 , the rotating member 100 may include a first member 110 and a second member 120. For example, the first member 110 may be located below the second member 120, and the second member 120 may be located above the first member 110.

[0084] Reference Figure 8 The first member 110 supports the bottom of the cell carrier 400. The first member 110 may have a first concave portion 111 formed to be concave inwardly in a circumferential portion of the first member 110 so that the cleaning water sprayed from the spray member 300 may be discharged.

[0085] For example, the groove 112 may be formed in the first concave portion 111, and when the discharge hole 410 is formed in the bottom of the cell carrier 400, the groove 112 of the first concave portion 111 and the discharge hole 410 at the bottom of the cell carrier 400 may be configured to communicate with each other. Therefore, the cleaning water sprayed from the spray member 300 may be discharged downward through the discharge hole 410 and the groove 112.

[0086] Refer again Figure 2 and Figure 3 The second member 120 supports the side surface of the cell carrier 400 . The second member 120 may have a second concave portion 121 formed to be concave inwardly in a circumferential portion of the second member 120 , so that the cell carrier 400 may be coupled to the second concave portion 121 .

[0087] Here, for example, the groove 122 may be formed in the second concave portion 121 , and the side surface of the cell carrier 400 may be inserted into and supported by the groove 122 .

[0088] Reference Figure 4 The fixing member 200 is configured to be disposed on the outer side of the rotating member 100 and to contact the cell carrier 400 , so that the cell carrier 400 rotates together with the rotating member 100 when the rotating member 100 rotates.

[0089] That is, the fixing member 200 is formed to have a diameter greater than that of the rotating member 100 and is disposed outside the rotating member 100. Here, the fixing member 200 may be disposed to surround the entire rotating member 100, or may be disposed to surround only a portion of the rotating member 100.

[0090] Reference Figure 7 , the friction providing portion 210 may be formed on a contact surface of the fixing member 200. The friction providing portion 210 provides frictional force to the cell carrier 400 to allow the cell carrier 400 to rotate.

[0091] Here, the friction providing portion 210 may include at least one O-ring coupled to a contact surface along the contact surface of the fixing member 200. And, for example, the O-ring may be made of rubber, but the material of the O-ring is not limited thereto.

[0092] And, refer to Figure 7 , the cell carrier 400 may have an outermost cross section formed in a circular shape, for example. In this case, one side of the cell carrier 400 is inserted into the second concave portion 121, and the other side is in contact with the fixing member 200. And, when the rotating member 100 rotates, the cell carrier 400 rotates along the contact surface of the fixing member 200.

[0093] That is, the cell carrier 400 has a bottom portion supported by the first concave portion 111 of the rotating member 100 (see Figure 8 ), and inserted into the groove 122 of the second concave portion 121 (see Figure 7 ). And, if Figure 5 and Figure 6 As shown (for ease of description, Figure 5 and Figure 6(the second member 120 is omitted), when the rotating member 100 rotates in the direction of arrow X, the cell carrier 400 moves in the rotation direction of the rotating member 100 and contacts the fixing member 200 as described above.

[0094] Here, since the friction providing portion 210 is formed on the contact surface of the fixing member 200, the portion of the cell carrier 400 that contacts the friction providing portion 210 of the fixing member 200 will stop, but the portion of the cell carrier 400 inserted into the groove 122 of the second concave portion 121 receives the rotational force of the rotating member 100 in the direction of arrow X, and thus the cell carrier 400 rotates in the direction of arrow Y, which is opposite to the rotation direction of the rotating member 100 when the rotating member 100 rotates.

[0095] That is to say, Figure 5 and Figure 6 When the rotating member 100 rotates in the direction of arrow X (which is clockwise), the cell carrier 400 rotates in the direction of arrow Y (which is counterclockwise), and the cylindrical battery cell 20 placed on the cell carrier 400 also rotates in the direction of arrow Y (which is counterclockwise).

[0096] And, if the spraying member 300 (see Figure 2 ) By spraying cleaning water toward the cylindrical battery cell 20 while the cylindrical battery cell 20 moves while rotating in this manner, there is an effect of sufficiently cleaning the cylindrical battery cell 20 as a whole.

[0097] In addition, since the cylindrical battery cell 20 is cleaned while rotating, there is no dead corner that is not cleaned, and therefore, even if the size of the cylindrical battery cell 20 changes, the cylindrical battery cell 20 can be fully cleaned as a whole. Therefore, there is an effect of maintaining the cleaning power even for cylindrical battery cells 20 of various sizes.

[0098] The carrier support portion 130 may be coupled to the rotating member 100 to support the rotating cell carrier 400. Figure 3 , the carrier support portion 130 may contact the cell carrier 400 at the lower side of the cell carrier 400. And, referring to Figure 5 The carrier supporting portion 130 may contact a plurality of surfaces (eg, four surfaces) of the cell carrier 400 to support the cell carrier 400 , but is not limited thereto.

[0099] For example, the carrier support portion 130 may be different and may be provided as a bearing. Here, the bearing may be made of polyetheretherketone (PEEK) material, but is not limited thereto. When the bearing is made of polyetheretherketone material, the bearing is a thermoplastic resin having high strength, high rigidity, and excellent heat resistance, which has the effect of facilitating molding processing.

[0100] Reference Figure 5 , the first concave portion 111 may be plural, and the carrier support portion 130 may be coupled to the first member 110 between one first concave portion 111a and another adjacent first concave portion 111b among the plurality of first concave portions 111a, 111b.

[0101] Therefore, there is an effect that the cell carrier 400 can be smoothly rotated by the carrier supporting portion 130 .

[0102] Reference Figure 2 The spray member 300 is configured to spray cleaning water toward the cylindrical battery cells 20 mounted on the cell carrier 400. Here, the spray member 300 may include at least one spray nozzle 310 disposed to face the cylindrical battery cells 20 mounted on the cell carrier 400, but is not limited thereto.

[0103] When the plurality of spray nozzles 310 are disposed in a horizontal or inclined direction, there is an effect of spraying cleaning water to various portions of the cylindrical battery cells 20 .

[0104] Fig. 9 is a diagram schematically showing a configuration of a battery pack including cylindrical battery cells 20 produced using the cylindrical battery cell cleaning device 10 according to each embodiment of the present disclosure.

[0105] Reference Fig. 9 , the battery pack 30 according to the embodiment of the present disclosure may include one or more cylindrical battery cells 20. Here, the cylindrical battery cell 20 is produced using the cylindrical battery cell cleaning device 10 according to each embodiment of the present disclosure as described above.

[0106] In addition, the battery pack 30 may further include a battery pack case 31 for accommodating the cylindrical battery cells 20 , various devices for controlling charging / discharging of the cylindrical battery cells 20 , such as a BMS, a current sensor, a fuse, and the like.

[0107] Fig.10 It is used to describe Fig. 9 Diagram of a battery pack for a vehicle.

[0108] Reference Fig.10The vehicle 40 according to the embodiment of the present disclosure may include one or more cylindrical battery cells 20 or a battery pack 30. The cylindrical battery cell cleaning device 10 according to each embodiment of the present disclosure as described above is used to produce the cylindrical battery cell 20. And, the battery pack 30 may include one or more cylindrical battery cells 20 as described above.

[0109] Here, the vehicle 40 includes various vehicles designed to use electric power, such as an electric vehicle or a hybrid vehicle.

[0110] The terms indicating directions such as up, down, left, and right used herein are used only for convenience of description, and it is obvious to those skilled in the art that the terms may be changed according to the positions of the elements or observers.

[0111] Although the present disclosure has been described above with reference to a limited number of embodiments and drawings, the present disclosure is not limited thereto, and it is obvious to those skilled in the art that various modifications and changes may be made thereto within the equivalent scope of the technical aspects of the present disclosure and the appended claims. Therefore, the embodiments disclosed above should be considered from an illustrative perspective rather than a restrictive perspective. That is, the scope of the true technical idea of ​​the present disclosure is shown in the claims, and all differences within the scope of equivalents should be interpreted as being included in the present disclosure.

[0112] Industrial Applicability

[0113] The present disclosure relates to a cylindrical battery cell cleaning device, a cylindrical battery cell produced using the same, and a battery pack and a vehicle including the cylindrical battery cell, and is particularly applicable to industries related to secondary batteries.

Claims

1. A cylindrical battery cell cleaning device, the cylindrical battery cell cleaning device comprising: a rotating member coupled to a cell carrier on which cylindrical battery cells are mounted and rotated by being coupled to a rotating shaft; a fixing member disposed on an outer side of the rotating member and in contact with the cell carrier so that when the rotating member rotates, the cell carrier rotates together with the rotation of the rotating member; as well as A spraying member sprays cleaning water toward the cylindrical battery cells placed on the cell carrier.

2. The cylindrical battery cell cleaning device according to claim 1, in, The rotating member comprises: A first member, the first member supporting a bottom of the battery cell carrier; and A second member supports a side surface of the cell carrier.

3. The cylindrical battery cell cleaning device according to claim 2, in, The first member has a first concave portion formed to be concave inwardly in a circumferential portion of the first member so that the cleaning water sprayed from the spray member can be discharged.

4. The cylindrical battery cell cleaning device according to claim 3, in, A discharge hole is formed in the bottom of the cell carrier, a groove is formed in the first concave portion, and the discharge hole and the groove communicate with each other.

5. The cylindrical battery cell cleaning device according to claim 2, in, The second member has a second concave portion formed to be inwardly concave in a circumferential portion of the second member so that the cell carrier can be coupled to the second concave portion.

6. The cylindrical battery cell cleaning device according to claim 5, in, A groove is formed in the second concave portion, and the side surface of the cell carrier is inserted into and supported by the groove.

7. The cylindrical battery cell cleaning device according to claim 5, in, The cell carrier has a circular outermost cross-section such that one side is inserted into the second concave portion and the other side is in contact with the fixing member, and When the rotating member rotates, the cell carrier rotates along the contact surface of the fixing member.

8. The cylindrical battery cell cleaning device according to claim 7, in, A friction providing portion is formed on the contact surface of the fixing member.

9. The cylindrical battery cell cleaning device according to claim 8, in, The friction providing portion includes at least one O-ring coupled to the contact surface along the contact surface of the fixing member.

10. The cylindrical battery cell cleaning device according to claim 9, in, The O-ring is made of rubber.

11. The cylindrical battery cell cleaning device according to claim 3, in, The carrier supporting portion is coupled to the rotating member to support the rotating cell carrier.

12. The cylindrical battery cell cleaning device according to claim 11, in, The carrier supporting portion is in contact with the cell carrier at a lower side of the cell carrier.

13. The cylindrical battery cell cleaning device according to claim 11, in, The carrier support portion is configured as a bearing.

14. The cylindrical battery cell cleaning device according to claim 13, in, The bearing is made of polyetheretherketone (PEEK) material.

15. The cylindrical battery cell cleaning device according to claim 11, in, The first concave portion is plural, and The carrier supporting portion is coupled to the first member between any one first concave portion of the plurality of first concave portions and another adjacent first concave portion.

16. The cylindrical battery cell cleaning device according to claim 1, in, When the rotating member rotates, the cell carrier rotates in a direction opposite to the rotating direction of the rotating member.

17. The cylindrical battery cell cleaning device according to claim 1, in, The spraying member includes at least one spraying nozzle disposed to face the cylindrical battery cells mounted on the cell carrier.

18. A cylindrical battery cell produced using the cylindrical battery cell cleaning device according to any one of claims 1 to 17.

19. A battery pack comprising at least one cylindrical battery cell according to claim 18.

20. A vehicle comprising at least one cylindrical battery cell according to claim 18.

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