Battery transfer tray

Abstract

A battery transfer tray is provided that is stackable in a direction perpendicular to a plane and is configured to receive a battery. The battery transfer tray includes: a main body plate extending along a plane; an accommodating recess formed downward in the direction and including a position portion configured to accommodate a tab of the battery cell; a support portion in a lower surface of the accommodating recess and having a stepped shape; and a protruding portion on an outer lower end portion of the support portion. The battery transfer tray including the protruding portion on the lower surface of the support portion may have a relatively small contact area between the electrode tab and the protruding portion, and thus adhesion between the battery transfer tray and the electrode tab may be prevented.

Description

[0001] This application claims priority to and the benefit of Korean Patent Application No. 10-2023-0039395 filed in the Korean Intellectual Property Office on March 26, 2023, and Korean Patent Application No. 10-2023-0100643 filed in the Korean Intellectual Property Office on August 1, 2023, the entire disclosures of both Korean patent applications are incorporated herein by reference. Technical Field

[0002] Aspects of embodiments of the present disclosure relate to a tray for transferring batteries. Background Art

[0003] Generally, unlike non-rechargeable (or primary) batteries, secondary batteries are designed to be rechargeable. Secondary batteries are used as energy sources for devices such as mobile devices, electric vehicles, hybrid electric vehicles, electric bicycles, and uninterruptible power supplies. Depending on the type of external device to which the secondary battery is applied, a single-cell secondary battery or a multi-cell secondary battery is used, which includes a plurality of battery cells connected to each other as one unit.

[0004] In secondary batteries, tabs, which are usually formed of thin metal plates, are used to electrically connect battery cells and safety components to each other. Typically, the small tabs are produced and supplied in reel-type packaging. Every time such a reel-type packaging needs to be replaced, the operation of the equipment that connects the battery cells together is stopped. Utility Model Content

[0005] The utility model aims to provide a battery transfer tray which can be vertically stacked and moved and can accommodate components, so that the components can be prevented from being separated.

[0006] An embodiment of the present disclosure includes a battery transfer tray that is vertically stackable and accommodates a thin plate assembly so that adhesion and deformation of the thin plate assembly can be prevented.

[0007] Additional aspects and features of the disclosure will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the described embodiments.

[0008] According to an embodiment of the present disclosure, a battery transfer tray is provided, which is stackable in a direction perpendicular to a plane and is configured to accommodate batteries. The battery transfer tray includes: a main body plate extending along the plane; a receiving recess formed downward in the direction and including a position portion configured to accommodate a terminal tab of a battery cell; a support portion in a lower surface of the receiving recess and having a step shape; and a protrusion on an outer lower end portion of the support portion.

[0009] The battery transfer tray may further include a first inclined portion extending between the main body plate and the position portion.

[0010] The support portion may be in a central portion of a lower surface of the accommodating recess, the support portion may include: a lower support portion parallel to the position portion; and a second inclined portion extending between the position portion and the lower support portion, and the protrusion portion may be on an outer lower end surface of the lower support portion.

[0011] The battery transfer tray may further include: a side wall extending from an outer periphery of the main body plate; and a step-shaped stopper on an end of the side wall and including a flat portion and a stop end.

[0012] The body plate may include a plurality of receiving recesses.

[0013] When a plurality of battery transfer trays are stacked on each other in this direction, the support portions respectively on the plurality of battery transfer trays may be arranged to correspond to each other.

[0014] When a plurality of battery transfer trays are vertically stacked on each other, a protrusion portion of an upper battery transfer tray among the plurality of battery transfer trays and a position portion of a lower battery transfer tray among the plurality of battery transfer trays may be spaced apart from each other by a certain distance.

[0015] The thickness of the protrusion may be less than half of the thickness of the lower support portion.

[0016] The protrusion may have a hemispherical shape.

[0017] The protrusion may have a cylindrical shape.

[0018] The protrusion may have a tapered shape.

[0019] The protrusions may be formed by embossing the lower support portion.

[0020] The protrusion may include a plurality of protrusions arranged in a row on an outer lower end portion of the support portion.

[0021] The protrusion may include a plurality of protrusions arranged in a plurality of rows on an outer lower end portion of the support portion.

[0022] An inner width of one end of the support portion connected to the receiving recess may be smaller than an outer width of the other end of the support portion.

[0023] When a plurality of battery transfer trays are vertically stacked on each other, the conductive plate may be between a protrusion of an upper battery transfer tray among the upper plurality of battery transfer trays and a position portion of a lower battery transfer tray among the plurality of battery transfer trays.

[0024] According to an embodiment of the present invention, the battery transfer tray including the protrusions on the lower surface of the support portion may have a relatively small contact area between the electrode tabs and the protrusions, and thus adhesion between the battery transfer tray and the electrode tabs may be prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and other aspects and features of the embodiments of the present disclosure will become more apparent through the following description in conjunction with the accompanying drawings, in which:

[0026] Figure 1 is a perspective view of a battery transfer tray according to an embodiment;

[0027] Figure 2 yes Figure 1 A plan view of the battery transfer tray shown in;

[0028] Figure 3 It is along Figure 2 A cross-sectional view taken along line AA;

[0029] Figure 4 is a view of a plurality of battery transfer trays stacked vertically upon one another according to an embodiment;

[0030] Figure 5 yes Figure 4 an enlarged view of a portion of;

[0031] Figure 6 is a cross-sectional view of a battery transfer tray according to a comparative embodiment;

[0032] Fig. 7A and Figure 7B is a view of a plurality of battery transfer trays vertically stacked on each other according to a comparative embodiment;

[0033] Figure 8 is an enlarged cross-sectional view of a portion of a battery transfer tray including a hemispherical protrusion according to an embodiment;

[0034] Fig. 9 yes Figure 1 and Figure 2 A partial bottom view of the battery transfer tray shown in ;

[0035] Fig.10 is an enlarged cross-sectional view of a portion of a battery transfer tray including a cylindrical protrusion according to an embodiment;

[0036] Fig.11 is an enlarged cross-sectional view of a portion of a battery transfer tray including a tapered protrusion according to an embodiment;

[0037] Fig.12 is an enlarged cross-sectional view of a portion of a battery transfer tray including embossed protrusions according to an embodiment; and

[0038] Fig.13 is an enlarged cross-sectional view of a portion of a battery transfer tray including a plurality of protrusions according to an embodiment. DETAILED DESCRIPTION

[0039] Reference will now be made in detail to embodiments, examples of which are shown in the accompanying drawings. In this regard, the described embodiments may have different forms and should not be construed as being limited to the descriptions set forth herein. Therefore, the embodiments are described below only by reference to the accompanying drawings to explain aspects and features of the present description.

[0040] It will be understood that when an element or layer is referred to as being "on," "connected to," or "coupled to" another element or layer, it may be directly on, directly connected to, or directly coupled to the other element or layer, or one or more intervening elements or layers may also be present. When an element or layer is referred to as being "directly on," "directly connected to," or "directly coupled to" another element or layer, there are no intervening elements or layers. For example, when a first element is described as being "coupled to" or "coupled to" a second element, the first element may be directly coupled or coupled to the second element, or the first element may be indirectly coupled or coupled to the second element via one or more intervening elements.

[0041] In the figure, for the sake of clear explanation, the size of various elements, layers, etc. can be exaggerated. The same reference numerals represent the same elements. As used herein, the term "and / or" includes any combination and all combinations of one or more of the relevant listed items. In addition, when describing the embodiments of the present disclosure, "may" is used to refer to "one or more embodiments of the present disclosure". Expressions such as "at least one (kind / person) in ... " and "any one (kind / person) in ... " modify the entire column of elements when they are after a column of elements, rather than modifying a single element in the list. For example, the expression "at least one (kind / person) in a, b, and c" represents only a, only b, only c, a and b, a and c, b and c, a, b, and c, all or their variations. As used herein, the term "use" and its variants can be considered to be synonymous with the term "utilize" and its variants, respectively. As used herein, the terms "substantially (substantially)", "approximately (about)" and similar terms are used as approximate terms rather than as terms of degree, and are intended to explain the inherent deviations of measured values ​​or calculated values ​​that will be recognized by those of ordinary skill in the art.

[0042] It will be understood that, although the terms first, second, third, etc. can be used here to describe various elements, components, regions, layers and / or parts, these elements, components, regions, layers and / or parts should not be limited by these terms. These terms are used to distinguish an element, component, region, layer or part from another element, component, region, layer or part. Therefore, without departing from the teaching of the exemplary embodiment, the first element, first component, first region, first layer or first part discussed below can be named as the second element, second component, second region, second layer or second part.

[0043] For ease of description, spatially relative terms such as "under", "below", "below", "above", "on", etc. may be used herein to describe the relationship of one element or feature to another element or features as shown in the figure. It will be understood that in addition to the orientation shown in the figure, the spatially relative terms are also intended to cover different orientations of the device in use or operation. For example, if the device in the figure is turned over, the elements described as "under" or "below" other elements or features will be oriented as "above" or "on" other elements or features. Therefore, the term "below" can cover both above and below. The device can be oriented otherwise (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0044] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings.

[0045] Figure 1 is a perspective view of a battery transfer tray 10 according to an embodiment, Figure 2 is a plan view of a battery transfer tray 10 according to an embodiment, and Figure 3 It is along Figure 2 A cross-sectional view taken along line AA.

[0046] Reference Figure 1 and Figure 2 The battery transfer tray 10 may include a body plate 110 extending along a plane, a battery cell receiving recess 200 , and an electrode tab receiving portion 300 .

[0047] According to an embodiment, the main body plate 110 of the battery transfer tray 10 may include (or may be) a plate-shaped frame. The main body plate 110 may form the main body of the battery transfer tray 10, and the battery cell accommodating recess 200 and the electrode terminal tab accommodating portion 300 may be arranged on the plane of the main body plate 110. The main body plate 110 may include a flat plate having a certain rigidity. For example, the main body plate 110 may include a quadrilateral plate extending along the plane of the main body plate 110, and may have a rigidity sufficient to support the battery cells 40 arranged in the battery cell accommodating recess 200 and the electrode terminal tab accommodating portion 300.

[0048] Reference Figure 1 and Figure 3 , the side wall 120 may be provided along the outer periphery of the main body plate 110. In an embodiment, the side wall 120 may extend downward from the outer periphery of the main body plate 110. The side wall 120 may support the battery transfer tray 10 in a vertical direction. An end of the side wall 120 may be connected to the main body plate 110, and the other end of the side wall 120 may be connected to the stopper 130. In an embodiment, the side wall 120 may be inclined at a certain angle (e.g., a predetermined angle) relative to a direction perpendicular to the plane of the main body plate 110. Figure 1 In the battery transfer tray 10 shown in , for example, the side wall 120 located on the left side of the main body plate 110 may extend rightward at a certain angle (for example, an acute angle may be formed between the side wall 120 and the main body plate 110), and the side wall 120 located on the right side of the main body plate 110 may extend leftward at a certain angle. Therefore, in a state where the battery transfer trays 10 are stacked therein, the stopper 130 located on the upper side may be installed on the outer periphery of the main body plate 110 located on the lower side. The height of the side wall 120 may determine the vertical distance between the vertically stacked battery transfer trays 10. Refer to Figure 4 Stacking of battery transfer trays 10 is described.

[0049] The stopper 130 may be provided at the other end (e.g., the far end) of the side wall 120. The stopper 130 may maintain the state of the vertically stacked battery transfer trays 10. In one embodiment, the stopper 130 may adjust (or may control) the stacking distance so that when the battery transfer trays 10 are vertically stacked, the upper battery transfer tray 10 and the lower battery transfer tray 10 may maintain a vertical distance (e.g., a predetermined vertical distance) therebetween. In one embodiment, the stopper 130 may be provided at the other end of the side wall 120, so that when the battery transfer trays 10 are vertically stacked, the stopper 130 may prevent the battery transfer trays 10 from moving forward, backward, leftward, and rightward, and thus may prevent the battery transfer trays 10 from being separated from each other.

[0050] The stopper 130 may have a stepped shape. In an embodiment, the stopper 130 may have a stepped shape including a flat portion 131 and a stopping end 132 .

[0051] One end of the flat portion 131 may be connected to the side wall 120, and the other end of the flat portion 131 may be connected to the stopper end 132, and the flat portion 131 is parallel to the main body plate 110. In an embodiment, when the battery transfer trays 10 are vertically stacked, the flat portion 131 of the upper battery transfer tray 10 may contact the upper surface of the main body plate 110 of the lower battery transfer tray 10, and thus the upper battery transfer tray 10 may be supported.

[0052] The stop end 132 may extend downward from the other end of the flat portion 131. In an embodiment, when the battery transfer trays 10 are stacked vertically, the stop end 132 of the upper battery transfer tray 10 may be positioned at the periphery of the main body plate 110 of the lower battery transfer tray 10. For example, in a state in which the battery transfer trays 10 are stacked vertically, the stop end 132 of the upper battery transfer tray 10 may surround the periphery of the main body plate 110 and a portion of the side wall 120 of the lower battery transfer tray 10 (or may extend along the periphery of the main body plate 110 and a portion of the side wall 120 of the lower battery transfer tray 10). Therefore, the stacked battery transfer trays 10 may be prevented from moving downward, forward, and backward relative to each other. Refer to the following description later. Figure 4 The stacked state of the battery transfer trays 10 is described.

[0053] Reference Figure 1 and Figure 2 According to an embodiment, the battery transfer tray 10 may include a battery cell receiving recess 200. In an embodiment, the battery cell receiving recess 200 may have a stepped shape formed by recessing the plane of the body plate 110 downward. The battery cell receiving recess 200 may be configured to receive the body of the battery cell 40 therein and may support the body of the battery cell 40.

[0054] In an embodiment, the battery cell receiving recess 200 may include a battery cell position portion 210 and an inclined portion 220 .

[0055] The battery cell position portion 210 may be parallel to the body plate 110 to support the body of the battery cell 40. In an embodiment, the battery cell position portion 210 may have a shape and size corresponding to the body of the battery cell 40. For example, the battery cell position portion 210 may have a quadrilateral shape corresponding to the size of the body of the battery cell 40, and thus, when the battery cell 40 is placed in the battery cell receiving recess 200, the battery cell position portion 210 may support the body of the battery cell 40.

[0056] The inclined portion 220 may connect the battery cell position portion 210 to the main body plate 110. Figure 1 and Figure 2As shown in , the inclined portion 220 may connect the left and right sides of the battery cell position portion 210 to the main body plate 110 (or may extend between the left side of the battery cell position portion 210 and the main body plate 110 and the right side of the battery cell position portion 210 and the main body plate 110). In an embodiment, the inclined portion 220 may have a height (e.g., a predetermined height) between the main body plate 110 and the battery cell position portion 210. For example, the inclined portion 220 may have a height between the main body plate 110 and the battery cell position portion 210 that is greater than the thickness of the main body of the battery cell 40, so that when the main body of the battery cell 40 is placed on the battery cell position portion 210, the main body of the battery cell 40 may not protrude above the plane of the main body plate 110.

[0057] In an embodiment, the inclined portion 220 may be inclined at a certain angle (e.g., a predetermined angle) relative to a direction perpendicular to the plane of the body plate 110. For example, the inclined portion 220 may be inclined at a certain angle so that the inclined portion 220 may be closer to the center of the battery cell position portion 210 in a downward direction. Therefore, the battery cell 40 may be easily inserted into or removed from the battery cell receiving recess 200 formed in the body plate 110.

[0058] although Figure 1 and Figure 2 An embodiment in which six quadrilateral battery cell receiving recesses 200 are included in the body plate 110 is shown, but the present disclosure is not limited thereto, and one or more battery cell receiving recesses 200 having various shapes may be provided in the body plate 110 according to the shape of the battery cell 40 .

[0059] Reference Figures 1 to 3 In an embodiment, the battery transfer tray 10 may include an electrode tab accommodating portion 300. The electrode tab accommodating portion 300 may be disposed adjacent to the battery cell accommodating recess 200 and may be configured to accommodate the electrode tabs 410 of the battery cells 40. For example, when one electrode tab 410 is disposed on each of both sides (e.g., opposite sides) of each of the battery cells 40, the electrode tab accommodating portion 300 may also be disposed on both sides (e.g., opposite sides) of the battery cell accommodating recess 200. Although Figure 1 and Figure 2 An embodiment in which the electrode tab accommodating parts 300 are provided on both sides of the battery cell accommodating recess 200 is shown, but the present disclosure is not limited thereto. One or more electrode tab accommodating parts 300 may be provided on the body plate 110 according to the number and position of the electrode tabs 410 of the battery cells 40.

[0060] In an embodiment, the electrode tab receiving portion 300 may include a receiving recess 310 , a support portion 320 , and a protrusion 330 .

[0061] The receiving recess 310 may be configured to support the electrode tab 410 when the battery cell 40 is placed in the battery cell receiving recess 200. In an embodiment, the receiving recess 310 may be formed by recessing the plane of the body plate 110 downward. The receiving recess 310 may be provided in the body plate 110 at a position adjacent to the battery cell receiving recess 200.

[0062] In an embodiment, the receiving recess 310 may include a position portion 311 and a first inclined portion 312 .

[0063] The position portion 311 may form a plane for supporting the electrode tab 410. In an embodiment, the position portion 311 may be recessed downward in a direction perpendicular to the plane of the body plate 110. The position portion 311 may be parallel to the body plate 110 to support the electrode tab 410. For example, when the battery cell 40 is placed in the battery cell receiving recess 200, the electrode tab 410 of the battery cell 40 may be placed and supported on the plane of the position portion 311.

[0064] The first inclined portion 312 may connect the main body plate 110 and the position portion 311 to each other (or may extend between the main body plate 110 and the position portion 311). The first inclined portion 312 may have a height (e.g., a predetermined height) between the main body plate 110 and the position portion 311. For example, the height of the first inclined portion 312 may be determined so that the electrode terminal tab 410 disposed on the battery cell 40 may be supported by the position portion 311 in a state in which the battery cell 40 is placed in the battery cell receiving recess 200. Therefore, the position portion 311 may be disposed at a height different from that of the battery cell position portion 210. In an embodiment, the first inclined portion 312 may be inclined at a certain angle relative to a direction perpendicular to the plane of the main body plate 110. For example, the first inclined portion 312 may be inclined at a certain angle (e.g., a predetermined angle) so that the first inclined portion 312 may be closer to the center of the position portion 311 in a downward direction.

[0065] The support portion 320 may be connected to the accommodating recess 310 and may serve as a vertical support structure for the accommodating recess 310. In an embodiment, the support portion 320 may have a stepped shape and may be disposed on a lower surface of the accommodating recess 310. The support portion 320 may be recessed downward from a central portion of the lower surface of the accommodating recess 310 (i.e., from a central portion of the position portion 311).

[0066] In an embodiment, the support portion 320 may include a lower support portion 321 and a second inclined portion 322 .

[0067] The lower support portion 321 may form a lower portion of the support portion 320. In an embodiment, the lower support portion 321 may be recessed downward in a direction perpendicular to the position portion 311 and may be parallel to the position portion 311. A width w2 of the lower support portion 321 may be smaller than a width w1 of the position portion 311.

[0068] The second inclined portion 322 may connect the position portion 311 and the lower support portion 321 to each other (or may extend between the position portion 311 and the lower support portion 321). The second inclined portion 322 may have a height (e.g., a predetermined height) between the lower support portion 321 and the position portion 311. The height of the second inclined portion 322 may be determined according to the distance between the lower support portion 321 of the lower battery transfer tray 10 and the position portion 311 of the upper battery transfer tray 10 among the vertically stacked battery transfer trays 10.

[0069] In an embodiment, the second inclined portion 322 may be inclined at a certain angle (e.g., a predetermined angle) relative to a direction perpendicular to the plane of the body plate 110. For example, the second inclined portion 322 may be inclined at a certain angle so that the second inclined portion 322 may be closer to the center of the lower support portion 321 in the downward direction. For example, the second inclined portion 322 may be inclined at a certain angle so that the inner width w3 of the end of the support portion 320 connected to the accommodating recess 310 may be smaller than the outer width w2 of the other end of the support portion 320 connected to the accommodating recess 310 (see, for example, Figure 5 ).

[0070] The protrusion 330 may be disposed at the outer lower end of the support portion 320. In an embodiment, the protrusion 330 may protrude from the lower surface of the lower support portion 321. For example, the protrusion 330 may be disposed on the lower support portion 321 to stably support the electrode terminal tab 410 disposed between the vertically stacked battery transfer trays 10. Figures 8 to 13 The shape and arrangement of the protrusion 330 are described.

[0071] Figure 4 2 is a view showing a state in which the battery transfer trays 10 according to the embodiment are vertically stacked, Figure 5 yes Figure 4 A portion of the electrode tab 410 is not shown in an enlarged view.

[0072] Reference Figure 4 and Figure 5, the battery transfer trays 10 may be stacked in a direction perpendicular to the plane of the main body plates 110, 510. According to an embodiment, when the battery transfer trays 10 are vertically stacked, the stopper 530 of the upper battery transfer tray 10 may be coupled to the outer periphery of the main body plate 110 of the lower battery transfer tray 10. For example, the side wall 520 of the upper battery transfer tray 10 may be inclined at a certain angle (e.g., an acute angle) toward the center of the upper battery transfer tray 10, the flat portion 531 of the stopper 530 may contact the upper surface of the main body plate 110 of the lower battery transfer tray 10, and the stopper end 532 may cover (e.g., may partially cover) the outer periphery and the side wall 120 of the main body plate 110 of the lower battery transfer tray 10. Therefore, the upper battery transfer tray 10 and the lower battery transfer tray 10 may be vertically spaced apart from each other by a distance corresponding to the height of the side walls 120, 520.

[0073] When the battery transfer trays 10 are stacked vertically, the electrode tab accommodating portion 600 of the upper battery transfer tray 10 may be positioned corresponding to the electrode tab accommodating portion 300 of the lower battery transfer tray 10. For example, the accommodating recess 310 of the lower battery transfer tray 10 may be positioned below the accommodating recess 610 of the upper battery transfer tray 10 (e.g., may be vertically aligned with the accommodating recess 610 of the upper battery transfer tray 10), and the supporting portion 320 of the lower battery transfer tray 10 may be positioned below the supporting portion 620 of the upper battery transfer tray 10.

[0074] When the battery transfer trays 10 are stacked vertically, a gap G may be formed between the lower support portion 621 of the upper battery transfer tray 10 and the position portion 311 of the lower battery transfer tray 10. When the battery transfer trays 10 are stacked vertically, the gap G may be formed to stably support the electrode terminal tab 410 disposed on the position portion 311. In an embodiment, the electrode terminal tab 410 disposed on the position portion 311 may include a thin plate material. For example, the electrode terminal tab 410 may include a thin conductive plate. If the gap G is too small, the electrode terminal tab 410 may adhere or deform between the upper battery transfer tray 10 and the lower battery transfer tray 10, and if the gap G is too large, the electrode terminal tab 410 may be separated from the upper battery transfer tray 10 and the lower battery transfer tray 10. Therefore, the gap G may have a size (e.g., a predetermined size) that prevents the electrode terminal tab 410 from adhering, deforming, and separating.

[0075] In an embodiment, the gap G may be determined by the first inclined portion 312 and the second inclined portion 322. When the battery transfer trays 10 are stacked vertically, as described above, the upper battery transfer tray 10 and the lower battery transfer tray 10 may be vertically spaced apart from each other by the height of the side wall 120, and the electrode tab receiving portion 300 may protrude downward by the height of the first inclined portion 312 and the second inclined portion 322. For example, the receiving recess 610 of the upper battery transfer tray 10 may include a position portion 611 and a lower support portion 621, the position portion 611 protruding downward from the main body plate 510 by the height of the first inclined portion 612, and the lower support portion 621 protruding downward from the position portion 611 by the height of the second inclined portion 622. In such an embodiment, a gap G may be formed between the lower surface of the lower support portion 621 of the upper battery transfer tray 10 and the position portion 311 of the lower battery transfer tray 10.

[0076] When the battery transfer trays 10 are stacked vertically, the protrusion 330 provided on the lower support portion 321 may face the electrode terminal tab 410. For example, when the battery transfer trays 10 are stacked vertically, the position portion 311 of the lower battery transfer tray 10 may face the protrusion 630 of the upper battery transfer tray 10. In such an embodiment, if the electrode terminal tab 410 is placed on the position portion 311 of the lower battery transfer tray 10, the electrode terminal tab 410 and the protrusion 630 of the upper battery transfer tray 10 may contact each other, or may be spaced apart from each other by a certain distance (e.g., a predetermined distance). For example, if the electrode terminal tab 410 placed on the lower battery transfer tray 10 contacts the protrusion 630 of the upper battery transfer tray 10, the electrode terminal tab 410 may have a smaller contact area than if the electrode terminal tab 410 contacts the lower support portion 621. For example, if the electrode terminal tab 410 placed on the lower battery transfer tray 10 is spaced a certain distance from the protrusion 630 of the upper battery transfer tray 10, the distance may be less than the thickness of the electrode terminal tab 410, and even if the upper battery transfer tray 10 and the lower battery transfer tray 10 are moved in a stacked state, the electrode terminal tab 410 will not be separated from the upper battery transfer tray 10 and the lower battery transfer tray 10.

[0077] Figure 6 2 is a cross-sectional view of a battery transfer tray 20 according to a comparative embodiment, in which the protrusion 330 on the lower end of the support portion 320 is omitted (see FIG. Figure 3 ), Fig. 7A and Figure 7B 20 is a view showing a state in which the battery transfer tray 20 according to the comparative embodiment is vertically stacked, and the battery transfer tray 20 according to the comparative embodiment omits the protrusions 630, 330 on the lower ends of the support parts 620, 320 (refer to Figure 4 ). In detail, Figures 6 to 7B In, with Figure 3 and Figure 4 The same reference numerals in the drawings denote the same components and may be found in Figure 3 and Figure 4 In the comparative embodiment, the electrode tab receiving portion 300 ′, 600 ′ may include a receiving recess 310 , 610 and a support portion 320 , 620 .

[0078] In such as Figure 6 In the case where the battery transfer tray 20 shown in FIG. 2 does not include the protrusion 330 on the lower support portion 321, if the battery transfer trays 20 are stacked vertically, the electrode terminal tabs 410 placed on the lower battery transfer tray 20 will contact and adhere to the lower support portion 621 of the upper battery transfer tray 20 (as in, for example, Fig. 7A ), or may contact and deform the lower support portion 621 of the battery transfer tray 20 above (as in, for example Figure 7B ).

[0079] Figure 8 is an enlarged cross-sectional view of a portion of the battery transfer tray 10 including a hemispherical protrusion 330 according to an embodiment, Fig. 9 yes Figure 2 A partial bottom view of the battery transfer tray 10 is shown in FIG.

[0080] Reference Figures 3 to 5 , Figure 8 and Fig. 9 , the protrusion 330 may be disposed on the central portion of the lower support portion 321. For example, a plurality of protrusions 330 may be arranged in a row on the central portion of the lower support portion 321. In an embodiment, the thickness t2 of the protrusion 330 may be less than half of the thickness t1 of the lower support portion 321.

[0081] Fig.10 is an enlarged cross-sectional view of a portion of the battery transfer tray 10 including a cylindrical protrusion 330 according to an embodiment, Fig.11 is an enlarged cross-sectional view of a portion of the battery transfer tray 10 including a tapered protrusion 330 according to an embodiment.

[0082] Reference Figure 8 , Fig.10 and Fig.11 , the protrusion 330 may have various shapes. In an embodiment, as Figure 8 As shown in , a hemispherical protrusion 330 may be provided. For example, the hemispherical protrusion 330 may have a vertically flattened hemispherical shape. Fig.10 As shown in FIG. , a cylindrical protrusion 330 may be provided, or as Fig.11 As shown in FIG. 3 , a tapered protrusion 330 may be provided. For example, each of the protrusions 330 having various shapes may have a thickness t2 that is less than half of the thickness t1 of the lower support portion 321 .

[0083] Fig.12 is an enlarged cross-sectional view of a portion of a battery transfer tray 10 including an embossed protrusion portion 330 according to an embodiment.

[0084] Reference Fig.12 The embossed protrusion 330 may be formed by embossing (eg, pressing or punching) the lower support portion 321 . Figure 8 , Fig.10 and Fig.11 The protrusion 330 shown in FIG. 1 protrudes from the lower support portion 321, and therefore, the position where the protrusion 330 is provided may be relatively thick because the thickness of the protrusion 330 and the thickness of the lower support portion 321 are increased. In another embodiment, the embossed protrusion 330 may be formed by partially embossing the lower support portion 321, and therefore, the embossed protrusion 330 may have the same thickness as the lower support portion 321.

[0085] Fig.13 is an enlarged cross-sectional view of a portion of the battery transfer tray 10 including a plurality of protrusions 330 according to an embodiment.

[0086] Reference Fig.13 , the protrusions 330 may be arranged in multiple rows on the outer lower end of the support portion 320. In an embodiment, the protrusions 330 may be arranged in multiple rows and may protrude from the lower surface of the lower support portion 321. The protrusions 330 may be symmetrically arranged in multiple rows on the lower surface of the lower support portion 321. For example, Fig.13 As shown in , the protrusions 330 may be arranged in three rows on the lower support portion 321. In such an embodiment, the middle row may be on the central portion of the lower support portion 321, and the other two rows may be symmetrical with respect to the middle row.

[0087] In the battery transfer tray 10 according to the embodiment, one or more protrusions 330 are arranged on the outer lower end portion of the support portion 320, so that when a plurality of battery transfer trays 10 are stacked vertically, the electrode terminal tab 410 as a thin plate member can be securely held without adhesion or deformation.

[0088] According to an embodiment, when the battery transfer tray 10 is vertically stacked, the contact area between the electrode tab 410 and the protrusion 330 may be relatively small, thereby reducing a reaction that may be caused by oil on the electrode tab 410 or oil used to manufacture the battery transfer tray 10. For example, the battery transfer tray 10 including the protrusion 330 on the lower surface of the support portion 320 may have a relatively small contact area between the electrode tab 410 and the protrusion 330, and thus adhesion between the battery transfer tray 10 and the electrode tab 410 may be prevented.

[0089] In the battery transfer tray 10 according to the embodiment, the electrode tab accommodating portion 300 configured to accommodate the electrode tab 410 may include a protrusion 330 on the outer lower end portion of the support portion 320. However, this is a non-limiting example. For example, aspects of the described embodiments may be applied to a tray that is vertically stackable and configured to transfer a thin plate member other than the electrode tab 410. In this case, the tray may not include the battery cell accommodating recess 200, but may include an accommodating portion corresponding to the electrode tab accommodating portion 300 including the protrusion 330. The position and shape of the accommodating portion of the tray may be variously modified according to the shape of the thin plate member to be transferred.

[0090] To aid understanding of the present disclosure, reference numerals are used in the embodiments shown in the drawings, and specific terms are used to describe the embodiments of the present disclosure; however, these reference numerals and terms are not intended to limit the scope of the present disclosure and may represent all components that may be considered by those skilled in the art.

[0091] The specific execution described herein is only an example, and does not limit the scope of the present disclosure in any way. In order to simplify the description, other functional aspects of conventional electronic configurations, control systems, software and systems can be omitted. In addition, the line connections or connecting members between the elements depicted in the figure represent functional connections and / or physical or circuit connections by way of example, and in practical applications, they can be replaced or implemented as various additional functional connections, physical connections or circuit connections. In addition, the elements described may not be the elements that are inevitably necessary for applying the present disclosure, unless they are specifically mentioned as "necessary" or "critical". Expressions such as "including" and "provided with" are used to be understood as open terms.

[0092] The singular forms "a", "an", and "the" in the present disclosure (specifically, the claims) may also be intended to include the plural forms. Unless otherwise defined, the ranges defined herein are intended to include any embodiment in which the values ​​within the range are applied individually and may be considered to be the same as the individual values ​​constituting the ranges in the detailed description. Finally, unless explicitly described or otherwise described in terms of order, the operations constituting the methods of the present disclosure may be performed in an appropriate order. The present disclosure is not necessarily limited to the order of operations given in the specification. Unless limited by the appended claims, the example terms or exemplary terms (e.g., etc.) used herein are used only to describe the embodiments in detail and are not intended to limit the present disclosure. In addition, it will be readily appreciated by those skilled in the art that various modifications and changes may be made within the scope of the present disclosure.

[0093] As described above, according to the above embodiment, the protrusion protrudes from the lower end of the support portion of the battery transfer tray, and the battery transfer tray can be stacked vertically while accommodating the thin plate member. Therefore, when the battery transfer trays are stacked vertically, the components arranged in the accommodating recess of the lower battery transfer tray will not adhere to the lower end of the support portion of the upper battery transfer tray, and can be safely held in place.

[0094] It should be understood that the embodiments described herein should be considered in a descriptive sense and not for limiting purposes. The description of features or aspects within each embodiment should generally be considered to be applicable to other similar features or aspects in other embodiments. Although one or more embodiments have been described with reference to the accompanying drawings, it will be understood by those of ordinary skill in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents.

Claims

1. A battery transfer tray, the battery transfer tray being stackable in a direction perpendicular to a plane and configured to accommodate batteries, characterized in that: The battery transfer tray comprises: a main body plate extending along the plane; an accommodation recess formed downward in the direction and including a position portion configured to accommodate a tab of a battery cell; a support portion in a lower surface of the accommodating recess and having a stepped shape; and The protrusion is on the outer lower end portion of the support portion.

2. The battery transfer tray according to claim 1, characterized in that: The battery transfer tray further includes a first inclined portion extending between the main body plate and the position portion.

3. The battery transfer tray according to claim 1, characterized in that: The support portion is in a central portion of the lower surface of the accommodating recess, The support portion includes: a lower support portion parallel to the position portion; and a second inclined portion extending between the position portion and the lower support portion, and Wherein, the protrusion is on the outer lower end surface of the lower support portion.

4. The battery transfer tray according to claim 1, characterized in that: The battery transfer tray also includes: a side wall extending from the periphery of the body panel; and A step-shaped stopper is on the end of the side wall and includes a flat portion and a stop end.

5. The battery transfer tray according to claim 1, characterized in that: The main body plate includes a plurality of the receiving recesses.

6. The battery transfer tray according to claim 1, characterized in that: When a plurality of the battery transfer trays are stacked on each other in the direction, the support portions respectively on the plurality of battery transfer trays are arranged to correspond to each other.

7. The battery transfer tray according to claim 1, characterized in that: When a plurality of the battery transfer trays are vertically stacked on each other, the protrusion portion of an upper battery transfer tray among the plurality of battery transfer trays and the position portion of a lower battery transfer tray among the plurality of battery transfer trays are spaced apart from each other by a certain distance.

8. The battery transfer tray according to claim 3, characterized in that: The thickness of the protrusion is less than half of the thickness of the lower support portion.

9. The battery transfer tray according to claim 1, characterized in that: The protrusion has a hemispherical shape.

10. The battery transfer tray according to claim 1, characterized in that: The protrusion has a cylindrical shape.

11. The battery transfer tray according to claim 1, characterized in that: The protrusion has a tapered shape.

12. The battery transfer tray according to claim 3, characterized in that: The protrusion is formed by stamping the lower support portion.

13. The battery transfer tray according to claim 1, characterized in that: The protrusion includes a plurality of protrusions arranged in a row on the outer lower end portion of the support portion.

14. The battery transfer tray according to claim 1, characterized in that: The protrusion includes a plurality of protrusions arranged in a plurality of rows on the outer lower end portion of the support portion.

15. The battery transfer tray according to claim 1, characterized in that: An inner width of one end of the support portion connected to the accommodating recess is smaller than an outer width of the other end of the support portion.

16. The battery transfer tray according to claim 1, characterized in that: When a plurality of the battery transfer trays are vertically stacked on each other, the conductive plate is between the protruding portion of an upper battery transfer tray among the plurality of battery transfer trays and the position portion of a lower battery transfer tray among the plurality of battery transfer trays.

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