Battery stack arrangement and battery system including these

Abstract

Battery stack arrangement, including: a large number of battery cells arranged along a predetermined stacking direction; a first end section and a second end section, each having a plate shape and arranged on an outermost side of the plurality of battery cells along the stacking direction; and a coupling element that integrally surrounds the multitude of battery cells, the first end section and the second end section; where the coupling element contains: a first strip section extending along the stacking direction at a predetermined first height along the vertical direction of the multitude of battery cells; a second strip section extending along the stacking direction at a second height lower than the first height, along the vertical direction of the multitude of battery cells; and a first binding section or a second binding section, which are arranged opposite the first end section and the second end section and connect one end of the first band section and one end of the second band section; the multitude of battery cells is arranged between the first belt section and the second belt section.

Description

BACKGROUND OF REVELATION 1. Area

[0001] The present disclosure relates to a battery stack arrangement and battery systems containing it. In particular, the disclosure relates to a battery stack arrangement and a battery system containing it that improve the service life and stability of battery cells. 2. Description of the state of the art

[0002] Prismatic battery cells can be grouped in a predetermined number to form a battery stack assembly. Typically, the battery stack assembly is secured with a band-like metal coupling element to minimize the volume and weight of the battery cells while suppressing cell swelling. The metallic connecting elements can improve the stability of the battery stack assembly's movement, preventing it from shaking or shifting due to vibrations, and can enhance the feasibility of assembling the battery system. Furthermore, cell swelling during charging and discharging can be suppressed, and appropriate surface pressure can be applied uniformly to each battery cell within the battery stack assembly.

[0003] However, since the ribbon-like coupling element uses a straight band with a single thickness and width, there is a problem that a weak part will break due to localized strain, and since a pair of coupling elements is provided side by side on the top and bottom respectively, there is a problem of unnecessary volume increase and a decrease in the energy density of the battery cell.

[0004] According to one aspect of the present disclosure, it is aimed at improving the structural stability of a battery stack arrangement and / or battery systems.

[0005] According to another aspect of the present disclosure, it is aimed at extending the service life of a battery stack arrangement and / or a battery system.

[0006] According to another aspect of the present disclosure, it is aimed at effectively suppressing the swelling of battery cells.

[0007] According to another aspect of the present disclosure, it is aimed at minimizing the increase in weight and / or volume of a battery stack arrangement and / or battery system.

[0008] According to another aspect of the present disclosure, it is aimed at maximizing the energy density of a battery stack arrangement and / or a battery system.

[0009] According to another aspect of the present disclosure, it is designed to prevent a break in the coupling elements.

[0010] The battery stack arrangement according to the present disclosure and the battery system comprising it can be widely applied in the field of green technology, such as electric vehicles, battery charging stations, energy storage systems, and other applications that utilize batteries, such as photovoltaics and wind power. Furthermore, the battery stack arrangement and the battery system comprising the battery according to the present disclosure can be used in environmentally friendly mobility, including electric vehicles and hybrid vehicles, to mitigate climate change by suppressing air pollution and greenhouse gas emissions. SUMMARY OF THE REVELATION

[0011] A battery stack arrangement according to the present disclosure may comprise: a plurality of battery cells arranged along a predetermined stacking direction; a first end section and a second end section, each having a plate shape and arranged on an outermost side of the plurality of battery cells along the stacking direction; and a coupling element integrally surrounding the plurality of battery cells, the first end section, and the second end section; wherein the coupling element may include: a first band section extending along the stacking direction at a predetermined first height along the vertical direction of the plurality of battery cells; a second band section extending along the stacking direction at a second height, which is lower than the first height, along the vertical direction of the plurality of battery cells;and a first binding section and a second binding section, respectively, which are arranged opposite the first end section and the second end section and connect one end of the first tape section and one end of the second tape section; and the plurality of battery cells may be arranged between the first tape section and the second tape section.

[0012] In one embodiment, the first end section may include: a contact surface that is an outermost surface of the first end section along the stacking direction; a first side surface and a second side surface that form two side surfaces along a width direction perpendicular to the stacking direction and the height direction and that touch the first strip section and the second strip section, respectively; and a top surface that forms a top surface of the first end section.

[0013] In one embodiment, the length of each of the plurality of battery cells along the width direction can be less than or equal to the length of the first end section.

[0014] In one embodiment, the first end section may include: a contact groove formed by a groove corresponding to a shape of the first binding section on the contact surface for inserting the first binding section; a first side groove formed by a groove corresponding to a shape of the first strip section and recessed along the width direction on the first side surface for inserting the first strip section; and a second side groove formed by a groove corresponding to a shape of the second strip section and recessed along the width direction on the second side surface for inserting the second strip section.

[0015] In one embodiment, the first tape section may include: a first tape connection section positioned on the first side face and extending along the stacking direction; and a first tape reinforcement section positioned on the top face, connected to the first tape connection section, surrounding an edge of the first end section and extending along the stacking direction; and the first binding section may include: a first binding connection section connected to the first tape connection section; and a first binding reinforcement section connected to the first binding connection section and the first tape reinforcement section.

[0016] In one embodiment, the length of the first belt section can differ from the length of the second belt section along the vertical direction.

[0017] In one embodiment, the first strip reinforcement section can be welded to the first strip connection section, and the first binding reinforcement section can be welded to the first strip reinforcement.

[0018] In one embodiment, the first end section may also include: a contact groove formed by a groove corresponding to a shape of the first binding section on the contact surface for inserting the first binding section; a first side groove formed by a groove corresponding to a shape of the first strip joining section and recessed along the width direction on the first side surface for inserting the first strip joining section; a first top groove formed by a groove corresponding to a shape of the first strip reinforcement section on the top surface, recessed along the height direction and connected to the first side groove for inserting the first strip reinforcement section; and a second side groove formed by a groove corresponding to a shape of the second strip section and recessed along the width direction on the second side surface for inserting the second strip section.

[0019] In one embodiment, the first end section may also include: a first symmetrical groove formed on the first side surface with the same shape as the second side groove at a position corresponding to the second side groove; a second symmetrical groove formed on the second side surface with the same shape as the first side groove at a position corresponding to the first side groove; and a second top surface groove formed on the top surface with the same shape as the first top surface groove and connected to the second symmetrical groove.

[0020] In one embodiment, the first tape section may include: a first tape connection section positioned on the first side face and extending along the stacking direction; and a first tape auxiliary section positioned on the top face and connected to the first tape connection section with a predetermined connection length along the stacking direction; and the first binding section may include: a first binding connection section connected to the first tape connection section; and a first binding auxiliary section connected to the first tape auxiliary section and the first binding connection section.

[0021] In one embodiment, the first binding aid section can be welded to the first strapping aid section.

[0022] In one embodiment, the first tape section may include: a first tape connection section positioned on the first side face and extending along the stacking direction; and a first tape reinforcement section positioned on the top face, connected to the first tape connection section, surrounding an edge of the first end section and extending along the stacking direction; and the first binding section may include: a first binding connection section connected to the first tape connection section; and a first binding aid section connected to the first tape reinforcement section and the first binding connection section.

[0023] In one embodiment, the first binding aid section can be welded to the first band reinforcement section.

[0024] In one embodiment, the second band section can be in contact from the second height up to a predetermined height along the vertical direction.

[0025] In one embodiment, the second height can be the lowest end of the second side surface.

[0026] In one embodiment, the coupling element may also include: a first strip of tape spaced apart from the bottom of the first tape section and extending along the stacking direction; a second strip spaced apart from the top section of the second tape section and extending along the stacking direction; a first crossing connection section that contacts the first end section, connects one end of the first strip to one end of the second strip, and crosses the first binding section; and a second crossing connection section that contacts the second end section, connects the other end of the first strip to the other end of the second strip, and crosses the second binding section.

[0027] A battery system according to the present disclosure may comprise: a first battery stack arrangement or a second battery stack arrangement containing a plurality of battery cells arranged along a predetermined stacking direction, a first end section and a second end section, each having a plate shape and arranged on an outermost side of the plurality of battery cells along the stacking direction, and a first coupling element and a second coupling element integrally surrounding the plurality of battery cells, the first end section and the second end section; and the first coupling element or the second coupling element may comprise: a first band section extending along the stacking direction at a predetermined first height along the vertical direction of the plurality of battery cells;a second band section extending along the stacking direction at a second height lower than the first height, along the vertical direction of the plurality of battery cells; and a first binding section and a second binding section, respectively, arranged opposite the first end section and the second end section, connecting one end of the first band section and one end of the second band section; and the first battery stack arrangement and the second battery stack arrangement may be arranged along a lateral direction perpendicular to the stacking direction and the vertical direction, and at least one section of the first band section of the first battery stack arrangement and the second band section of the second battery stack arrangement are positioned to overlap each other.

[0028] In another embodiment, the battery system may also include: an insert that is placed between the first belt section of the first battery stack arrangement and the second belt section of the second battery stack arrangement along the vertical direction.

[0029] In another embodiment, a gap between the first battery stack arrangement and the second battery stack arrangement can be smaller than the sum of the thicknesses of the first strip section of the first battery stack arrangement and the second strip section of the second battery stack arrangement along the width direction.

[0030] In another embodiment, each of the plurality of battery cells can contain a housing that accommodates an electrode arrangement therein, and the sum of the lengths of the first strip section of the first battery stack arrangement and the second strip section of the second battery stack arrangement, or the sum of the lengths of the second strip section of the first battery stack arrangement and the first strip section of the second battery stack arrangement, can be less than or equal to half the height of the housing along the vertical direction.

[0031] According to one embodiment of the present disclosure, the structural stability of a battery stack arrangement and / or a battery system can be improved.

[0032] According to another embodiment of the present disclosure, the service life of a battery stack arrangement and / or a battery system can be extended.

[0033] According to another embodiment of the present disclosure, the swelling of battery cells can be effectively suppressed.

[0034] According to another embodiment of the present disclosure, the increase in weight and / or volume of a battery stack arrangement and / or battery system can be minimized.

[0035] According to another embodiment of the present disclosure, the energy density of the battery stack arrangement and / or the battery system can be maximized.

[0036] According to another embodiment of the present disclosure, the breakage of the coupling element can be prevented. BRIEF DESCRIPTION OF THE DRAWINGS Fig. Figure 1 illustrates an example of a battery stack arrangement according to the present disclosure. Fig. Figure 2 illustrates an example of a coupling element according to the present disclosure. Fig. Figure 3 is a front view of a first end section of a battery stack arrangement according to the present disclosure. Fig. Figure 4 is a front view of an example of the first end section according to the present disclosure. Fig. Figure 5 illustrates another example of a battery stack arrangement according to the present disclosure. Fig. Figure 6 is a planar figure of another example of a coupling element according to the present disclosure. Fig. Figure 7 is a front view of another example of a first end section according to the present disclosure. Fig. Figure 8 is a planar figure of another example of a coupling element according to the present disclosure. Fig. Figure 9 is a planar figure of another example of a coupling element according to the present disclosure. Fig. Figure 10 is a planar figure of another example of a coupling element according to the present disclosure. Fig. Figure 11 illustrates another example of a battery stack arrangement according to the present disclosure. Fig. Figure 12 illustrates another example of a battery system according to the present disclosure. DETAILED DESCRIPTION

[0037] Preferred embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. The configuration of the device or control method described below serves to illustrate embodiments of the present disclosure and is not intended to limit the scope of the present disclosure, and the same reference numerals used throughout the description refer to the same components.

[0038] The use of terms such as "first," "second," "third," and the like to precede components referred to herein is intended to avoid confusion regarding the components to which they refer and does not indicate any order, importance, or master-server relationship between the components. For example, it is possible to implement an invention comprising only the second component without the first component.

[0039] As used herein, the singular expression includes the plural unless the context clearly indicates otherwise.

[0040] As used herein, a battery stack arrangement can refer to a battery assembly comprising a multitude of battery cells grouped together and arranged along a predetermined stacking direction. For example, the battery assembly can refer to a battery module.

[0041] Furthermore, in the present disclosure, a battery system can refer to one consisting of a battery pack and an energy storage system that includes a plurality of battery stack arrangements, i.e., the plurality of battery stack arrangements can form a single battery system.

[0042] Fig. Figure 1 illustrates an example of a battery stack arrangement according to the present disclosure.

[0043] The battery stack arrangement 100 according to the present disclosure can include a plurality of battery cells 110 arranged along a predetermined stacking direction, a first end section 151 and a second end section 152, each having a plate shape and arranged on an outermost side of the plurality of battery cells 110 along the stacking direction;and a coupling element 170 integrally surrounding the plurality of battery cells 110, the first end section 151 and the second end section 152, wherein the coupling element 170 may include: a first strip section 173 extending along the stacking direction at a predetermined first height along the height direction of the plurality of battery cells, a second strip section 174 extending along the stacking direction at a second height lower than the first height along the height direction of the plurality of battery cells, and a first binding section 171 and a second binding section 172 respectively, arranged opposite the first end section 151 and the second end section 152 and connecting an end of the first strip section 173 and an end of the second strip section 174, wherein the plurality of battery cells 110 may be arranged between the first strip section 173 and the second strip section 174.

[0044] For example, the battery stack arrangement 100 can include a plurality of battery cells 110 arranged along a predetermined stacking direction, a first end section 151 and a second end section 152, each having a plate shape and arranged on an outermost side of the plurality of battery cells 110 along the stacking direction (or Y-direction), and a coupling element 170 integrally surrounding the plurality of battery cells 110, the first end section 151 and the second end section 152.

[0045] The shape of the battery cells 110 can be prismatic. However, the shape of the battery cells 110 is not limited to this, and other shapes of the battery cells 110 may be acceptable as long as the battery cells 110 can be bundled via the coupling element 170.

[0046] The battery cell 110 can contain a housing 115 (not shown) which accommodates an electrode arrangement (not shown) and terminal sections 111, 112 which project outwards from the housing 115 in conjunction with the electrode arrangement.

[0047] The battery stack arrangement 100 can include an end section 150, which is arranged on an outermost side of the plurality of battery cells 110 along a stacking direction of the plurality of battery cells 110. The end section 150 can include a first end section 151, which is arranged on a front F of the plurality of battery cells 110, and a second end section 152, which is arranged on a rear R of the plurality of battery cells 110.

[0048] Furthermore, the battery stack arrangement 100 can include a coupling element 170 to prevent swelling of the multitude of battery cells 110 and to prevent rocking of the multitude of battery cells 110.

[0049] The coupling element 170 can be inclined diagonally to the first end section 151 and / or the second end section 152 when considering the first end section 151.

[0050] Fig. Figure 2 illustrates an example of a coupling element according to the present disclosure.

[0051] The coupling element 170 can include a first tape section 173 and a second tape section 174 extending along the stacking direction, and can include a first binding section 171 and a second binding section 172 electrically connected to the first tape section 173 and the second tape section 174.

[0052] The first band section 173 and the second band section 174 can be arranged at different heights along a height direction of the plurality of battery cells and / or a height direction (Z-direction) of the first end section 151.

[0053] In other words, with reference to Fig. 1 and Fig. 2. The battery stack arrangement 100 according to the present disclosure can include a plurality of battery cells 110 arranged along a predetermined stacking direction, a plate-shaped first end section 151 and a plate-shaped second end section 152 arranged at the outermost sides of the plurality of battery cells 110 along the stacking direction, and a coupling element 170 integrally surrounding the plurality of battery cells 110, the first end section 151 and the second end section 152.

[0054] Furthermore, with reference to Fig. 3 the coupling element 170 comprising: a first tape section 173 extending along the stacking direction at a predetermined first height H1 along the height direction of the plurality of battery cells 110, wherein the plurality of battery cells 110 is arranged between the first tape section 173 and a second height H2, which is lower than the first height H1, along the height direction of the plurality of battery cells 110, a second tape section 174 extending along the stacking direction at a second height H2, which is lower than the first height H1, and a first binding section 171 and a second binding section 172, which connect an end of the first tape section 173 and an end of the second tape section 174, which are arranged opposite the first end section 151 and the second end section 152, respectively.

[0055] Thus, the multitude of battery cells 110 can be arranged between the first belt section 173 and the second belt section 174.

[0056] Furthermore, the multitude of battery cells 110 can be arranged between the first binding section 171 and the second binding section 172.

[0057] Furthermore, the coupling element 170 can be configured in the form of a square ring. And the coupling element 170 can have four rounded corners of the square ring shape.

[0058] Fig. Figure 3 is a front view of the first end section 171 of a battery stack arrangement according to the present disclosure.

[0059] In particular, it shows Fig. 3 the first binding section 171 and the contact surface 1515, which is the front of the first end section 151.

[0060] According to the present disclosure, the first end section 151 can include a contact surface 1515, which is an outermost surface of the first end section 151 along the stacking direction, a first side surface 1511 and a second side surface 1512, which form two side surfaces along a width direction perpendicular to the stacking direction and the height direction and touch the first strip section 173 and the second strip section 174 respectively, and an upper surface 1513, which forms a top surface of the first end section 151.

[0061] For example, the first end section 151 can be configured in a plate form. With reference to Fig. 1. The plate shape can mean a shape in which the length of the first end section 151 along the stacking direction (Y-direction) is smaller than the length of the first end section 151 along the width direction (X-direction) and the height direction (Z-direction).

[0062] The first end section 151 can include a contact surface 1515, which is an outermost side of the first end section 151 along the stacking direction, a first side surface 1511 and a second side surface 1512, which form two side surfaces along a width direction perpendicular to the stacking direction and the height direction and which are in contact with the first strip section 173 and the second strip section 174 respectively, and a top surface 1513, which forms a top surface of the first end section 151.

[0063] The contact surface 1515 can touch the first binding section 171 and form a front face of the first end section 151.

[0064] The first side surface 1511 and the second side surface 1512 can touch the first band section 173 and the second band section 174 respectively, and the first binding section 171 can be connected to the first band section 173 and the second band section 174 respectively at an edge where the first side surface 1511 and the contact surface 1515 meet, and at an edge where the second side surface 1512 and the contact surface 1515 meet.

[0065] Furthermore, the first end section 151 can also include a lower surface 1514, which is located opposite the upper surface 1513 and forms a lower surface of the first end section 151.

[0066] Meanwhile, the first band section 173 and the second band section 174 can be arranged at different heights along the vertical direction. Accordingly, the first binding section 171, which connects the first band section 173 and the second band section 174, can be inclined.

[0067] The second binding section 172 can also be inclined like the first binding section 171.

[0068] The angle and direction of inclination of the first binding section 171 and the second binding section 172 can vary depending on the height of the first strap section 173 and the second strap section 174. For example, the height of the second strap section 174 can be greater than the height of the first strap section 173, so that the direction of inclination of the first binding section 171 is opposite to that shown in the diagram. Fig. 3 shown.

[0069] On the other hand, the first band section 173 can be located at a predetermined first height H1, and the second band section 174 can be located at a second height H2. Considering the lengths or widths of the first band section 173 and the second band section 174 along the vertical direction, the first height H1 and the second height H2 can be the lengths to the underside of the first band section 173 and the underside of the second band section 174, respectively, relative to the ground surface 1514.

[0070] Unless otherwise stated in the present disclosure, the first end section 151 and the second end section 152 have the same form and function, so that the description of the first end section 151 can be applied equally to the second end section 152.

[0071] Fig. Figure 4 is a front view of an example of the first end section 151 according to the present disclosure.

[0072] The coupling element 170 can connect the multitude of battery cells 110, the first end section 151 and the second end section 152 together.

[0073] Unlike conventional coupling elements, a moment can be exerted on the coupling element 170 because the first binding section 171 and the second binding section 172 connect the first band section 173 and the second band section 174 at an inclined angle to the first band section 173 and the second band section 174. To prevent the coupling element 170 from being pulled out by an external force and to guide the coupling element 170 to be coupled to the plurality of battery cells 110, the first end section 151, and the second end section 152, the first end section 151 can include a groove into which the coupling element 170 is inserted. In other words, the groove formed in the first end section 151 can improve the fixability and ease of assembly of the coupling element 170.

[0074] According to the present disclosure, the first end section 151 may include: a contact groove 1501 formed from a groove corresponding to a shape of the first binding section 171 on the contact surface for inserting the first binding section 171, a first side groove 1503 formed from a groove corresponding to a shape of the first band section 173 and recessed along the width direction on the first side surface 1511 for inserting the first band section 173, and a second side groove 1504 formed from a groove corresponding to a shape of the second band section 174 and recessed along the width direction on the second side surface 1512 for inserting the second band section 174.

[0075] For example, the first end section 151 can contain a contact groove 1501 formed in the shape of a groove corresponding to the shape of the first binding section 171 at the contact surface 1515 for inserting the first binding section 171.

[0076] It may also include: a first side groove 1503, which is formed in the form of a recessed groove along the width direction, corresponding to the shape of the first strip section 173 on the first side surface 1511 for inserting the first strip section 173, and a second side groove 1504, which is formed in the form of a recessed groove along the width direction, corresponding to the shape of the second strip section 174 on the second side surface 1512 for inserting the second strip section 174.

[0077] The contact groove 1501 can accommodate at least one section of the first binding section 171 along the stacking direction. For this purpose, the contact groove 1501 in the contact surface 1515 can be configured to conform to an inclined shape of the first binding section 171.

[0078] The depth of the contact groove 1501 can be greater than or equal to the thickness of the first binding section 171. This is to prevent the thickness of the first binding section 171 from increasing the length of the battery stack arrangement 100 along the stacking direction. Likewise, the depth of the contact groove 1501 of the second end section 152 can be greater than or equal to the thickness of the second binding section 172.

[0079] The first side groove 1503 and the second side groove 1504 can be formed at a height corresponding to that of the first band section 173 and the second band section 174 respectively, i.e. a lower end of the first side groove 1503 can be at the first height H1 and a lower end of the second side groove 1504 can be at the second height H2.

[0080] For example, along the vertical direction, the height of a top surface of the first band section 173 relative to the bottom surface 1514 can be the height of a corner where the top surface 1513 and the first side surface 1511 meet. And along the vertical direction, the second height H2 can correspond to the height of the corner where the bottom surface 1514 and the second side surface 1512 meet; that is, the second height H2 can be zero.

[0081] For example, the first end section 151 may also contain a first symmetrical groove 1505 formed in the same shape at a position corresponding to the second side groove 1504 on the first side surface 1511, and a second symmetrical groove 1506 formed in the same shape at a position corresponding to the first side groove 1503 on the second side surface 1512.

[0082] The first symmetrical groove 1505 and the second side groove 1504 can also be formed with the same shape on the second height H2, and the second symmetrical groove 1506 and the first side groove 1503 can be formed with the same shape on the first height H1.

[0083] Since the first end section 151 and the second end section 152 have the same shape, they can be used interchangeably during assembly. Furthermore, when the battery stack arrangement 100 is arranged in multiple battery stack arrangements 100 along the width direction, interference along the width direction between adjacent battery stack arrangements 100 due to the first strip section 173 or the second strip section 174 is to be prevented.

[0084] On the other hand, the first strip section 173 and the second strip section 174 can be received in the first side groove 1503 and the second side groove 1504, respectively, to contact the sides of the plurality of battery cells 110. Thus, the length of the plurality of battery cells 110 along the width direction can be less than or equal to the length of the first end section 151.

[0085] Fig. Figure 5 illustrates another example of a battery stack arrangement according to the present disclosure.

[0086] Taking into account the stress distribution of the coupling element 170, stresses can be concentrated in the area where the first band section 173 and the first binding section 171 meet, and in the area where the second band section 174 and the first binding section 171 meet.

[0087] Similarly, stresses can be concentrated in the area where the first tape section 173 meets the second binding section 172, and in the area where the second tape section 174 meets the second binding section 172.

[0088] The battery stack arrangement 100 according to the present disclosure can include additional stiffening structures to increase the stiffness of the coupling element 170 relative to the concentrated stresses. Fig. 6 and Fig. 8 to Fig. Figure 10 illustrates various examples of stiffening structures. Furthermore, the stiffening structures are not limited to the various embodiments described in Fig. 6 and Fig. 8 to Fig. 10 are described, but can be varied, i.e. variations in the shape and position of the stiffening structures may be self-evident to average professionals in the battery field.

[0089] Fig. Figure 6 is a planar figure of another example of a coupling element according to the present disclosure.

[0090] Fig. 6 and Fig. 8 to Fig. Figure 10 uses plane figures to illustrate the coupling element 170. To further illustrate the coupling element 170, the battery cell 110 is also shown in a schematic unfolded view. However, the first end section 151 is not shown.

[0091] According to the present disclosure, the first band section 173 may include: a first band connection section 173a, which is positioned on the first side surface 1511 and extends along the stacking direction, and a first band reinforcement section 173b, which is positioned on the upper surface 1513, is connected to the first band connection section 173a, surrounds an edge of the first end section 151 and extends along the stacking direction, and the first binding section 171 may include: a first binding connection section 171a, which is connected to the first band connection section 173a, and a first binding reinforcement section 173b, which is connected to the first binding connection section 171a and the first band reinforcement section 173b.

[0092] For example, with reference to Fig. 6 the first strip section 173 includes: a first strip joining section 173a, which is located on the first side surface 1511 and extends along the stacking direction, and a first strip reinforcing section 173b, which is located on the upper surface 1513 and is connected to the first strip joining section 173a, surrounds an edge of the first end section 151 and extends along the stacking direction.

[0093] This means that the first band connection section 173a and the first band reinforcement section 173b can be bent or L-shaped in cross-section to surround the edge where the top surface 1513 and the first side surface 1511 meet.

[0094] Furthermore, the first binding section 171 can contain: a first binding connection section 171a connected to the first band connection section 173a, and a first binding reinforcement section 171b connected to the first binding connection section 171a and the first band reinforcement section 173b.

[0095] From a stress distribution perspective, the vulnerable part of the coupling element 170 is the area where the contact surface 1515, the first side surface 1511 and the upper surface 1513 meet, so that the first bonding section 173a, the first bonding reinforcement section 173b and the first bonding reinforcement section 173b are more vulnerable, and so the first bonding section 171a and the first bonding reinforcement section 171b can be connected to each other in a form that surrounds the area where the contact surface 1515, the first side surface 1511 and the upper surface 1513 meet.

[0096] According to the present disclosure, the first strip reinforcement section 173b can be welded to the first strip joining section 173a, and the first binding reinforcement section 171b can be welded to the first strip reinforcement 173b.

[0097] For example, the first strip reinforcement section 173b can be welded to the first strip joining section 173a to surround an edge where the top surface 1513 and the first side surface 1511 meet.

[0098] For example, the first binding reinforcement section 171b can be welded to the first band reinforcement section 173b.

[0099] For example, the coupling element 170 can be press-formed from a single track without any welded connections.

[0100] Given that the first binding connection section 171a and the first binding reinforcement section 171b are connected to the second band section 174, and the first binding connection section 171a is connected to the first band connection section 173a, the length P1 of the first band section 173 along the vertical direction may differ from the length P2 of the second band section 174.

[0101] Fig. Figure 7 is a front view of another example of a first end section according to the present disclosure.

[0102] As mentioned above, in order to prevent the coupling element 170 from being detached by external forces and to guide the coupling element 170 to be coupled with the plurality of battery cells 110, the first end section 151 and the second end section 152, the first end section 151 can include a groove into which the coupling element 170 is inserted. In other words, the groove formed in the first end section 151 can improve the fixability and ease of assembly of the coupling element 170.

[0103] For this purpose, the first end section 151 can include a contact groove 1501 formed in the shape of a groove corresponding to the shape of the first binding section 171 at the contact surface 1515 for inserting the first binding section 171.

[0104] Furthermore, the first end section 151 can include: a first side groove 1503, which is formed in the form of a recess along the width direction, corresponding to the shape of the first band connection section 173a on the first side surface 1511 for inserting the first band connection section 173a, and a first top groove 1507, which is formed in the form of a recess along the height direction, corresponding to the shape of the first band reinforcement section 173b on the top surface 1513 for inserting the first band reinforcement section 173b, and which is connected to the first side groove 1503.

[0105] Furthermore, the first end section 151 can also include a second side groove 1504 in the form of a recess along the width direction, which corresponds to the shape of the second band section 174 on the second side surface 1512 for inserting the second band section 174.

[0106] The first side groove 1503 and the first top groove 1507 can be connected to form an L-shaped groove.

[0107] According to the present disclosure, the first end section 151 may also include: a first symmetrical groove 1505 formed on the first side surface 1511 with the same shape as the second side groove 1504 at a position corresponding to a second side groove 1504, a second symmetrical groove 1506 formed on the second side surface 1512 with the same shape as the first side groove 1503 at a position corresponding to the first side groove 1503, and a second top surface groove formed on the top surface with the same shape as a first top surface groove and connected to the second symmetrical groove 1506.

[0108] Meanwhile, the first end section 151 can contain: a first symmetrical groove 1505 formed in the same shape at a position corresponding to the second symmetrical groove 1504 on the first side surface 1511, and a second symmetrical groove 1506 formed in the same shape at a position corresponding to the first symmetrical groove 1503 on the second side surface 1512.

[0109] Furthermore, the first end section 151 can also include a second upper groove 1508, which is formed in the same shape as the first upper groove 1507 on the upper surface 1513 and is connected to the second symmetrical groove 1506.

[0110] The second symmetrical groove 1506 and the second upper groove 1508 can be connected to form an L-shaped groove.

[0111] Since the first end section 151 and the second end section 152 have the same shape, they can be used interchangeably during assembly. Furthermore, when the battery stack arrangement 100 is arranged in multiple battery stack arrangements 100 along the width direction, interference along the width direction between adjacent battery stack arrangements 100 due to the first strip section 173 or the second strip section 174 is to be prevented.

[0112] On the other hand, the first symmetrical groove 1505 and the second side groove 1504 can be rounded to prevent breakage of the coupling element.

[0113] Likewise, the first side groove 1503 and the second symmetrical groove 1506 can also be rounded.

[0114] Additionally, the first upper groove 1507 and the second upper groove 1508 can also be rounded.

[0115] Fig. Figure 8 is a planar figure of another example of a coupling element according to the present disclosure.

[0116] According to the present disclosure, the first band section 173 may include: a first band connection section 173a, which is positioned on the first side surface 1511 and extends along the stacking direction, and a first band auxiliary section 173c, which is positioned on the upper surface 1513 and is connected to the first band connection section 173a with a predetermined connection length along the stacking direction, and the first binding section 171 may include: a first binding connection section 171a, which is connected to the first band connection section 173a, and a first binding auxiliary section 173c, which is connected to the first band auxiliary section 173c and the first binding connection section 171a.

[0117] For example, the first band section 173 includes a first band connection section 173a located on the first side face 1511 and extending along the stacking direction, and a first band auxiliary section 173c located on the top face 1513 and connected to the first band connection section 173a with a predetermined connection length along the stacking direction, wherein the first binding section 171 may include: a first binding connection section 171a connected to the first band connection section 173a, and a first binding auxiliary section 173c connected to the first binding connection section 171a, and the first band auxiliary section 173c connected to the first binding connection section 171a.

[0118] From a stress distribution perspective, the vulnerable section of the coupling element 170 is the area where the contact surface 1515, the first side surface 1511 and the upper surface 1513 meet, and therefore the first band connection section 173a, the first band auxiliary section 173c, the first binding connection section 171a and the first binding auxiliary section 171c can be connected to each other in a form that encloses the area where the contact surface 1515, the first side surface 1511 and the upper surface 1513 meet.

[0119] For this purpose, the first binding aid section 171c can be welded to the first strapping aid section 173c. Alternatively, the connecting element 170 can be cut from a single strip and then bent and shaped.

[0120] For example, the first binding aid section 171c and the first banding aid section 173c can be a triangular plate.

[0121] Fig. Figure 9 is a planar figure of another example of a coupling element according to the present disclosure.

[0122] According to the present disclosure, the first band section 173 may contain: a first band connection section 173a, which is positioned on the first side surface 1511 and extends along the stacking direction, and a first band reinforcement section 173b, which is positioned on the upper surface 1513, is connected to the first band connection section 173a, surrounds an edge of the first end section 151 and extends along the stacking direction, and the first binding section 171 may contain: a first binding connection section 171a, which is connected to the first band connection section 173a, and a first binding aid section 171c, which is connected to the first band reinforcement section 173b and the first binding connection section 171a.

[0123] For example, the first strip section 173 may contain: a first strip joining section 173a located on the first side face 1511 and extending along the stacking direction, and a first strip reinforcing section 173b located on the top face 1513 and connected to the first strip joining section 173a to surround an edge of the first end section 151 extending along the stacking direction, wherein the first binding section 171 may contain: a first binding joining section 171a connected to the first strip joining section 173a, and a first binding auxiliary section 171c connected to the first strip reinforcing section 173b and the first binding joining section 171a.

[0124] From a stress distribution perspective, the vulnerable part of the coupling element 170 is the area where the contact surface 1515, the first side surface 1511 and the upper surface 1513 meet, and therefore the first band connection part 173a, the first band reinforcement part 173b, the first binding connection section 171a and the first binding aid section 171c can be connected to each other in a form that encloses the area where the contact surface 1515, the first side surface 1511 and the upper surface 1513 meet.

[0125] For this purpose, the first binding aid section 171c can be welded to the first band reinforcement section 173b. Alternatively, the coupling element 170 can be cut from a single strip and then bent and shaped.

[0126] For example, the first binding aid section 171c can be a triangular plate, while the first band reinforcement section 173b can be a strip-shaped plate.

[0127] Fig. Figure 10 is a planar figure of another example of a coupling element according to the present disclosure.

[0128] The second band section 174 can be in contact along the vertical direction from the second height H2 up to a predetermined height.

[0129] The length from the second height H2 to the predetermined height can be a width of the second band section 174.

[0130] With reference to Fig. Figure 10 shows the second height H2 in an example, which is spaced from the lower surface 1514. Alternatively, the second height H2 can be omitted, i.e., the second height H2 can be the bottom end of the second side surface 1512. In other words, the second band section 174 can cover the first end section 151, the plurality of battery cells 110, and the second end section 152 from the underside of the second side surface 1512 up to the predetermined height.

[0131] Fig. Figure 11 illustrates another example of a battery stack arrangement according to the present disclosure.

[0132] To distribute stresses on the coupling element 170, the coupling element 170 can include: a first strip 178 extending along the stacking direction at the second height H2 parallel to the first strip section 173, and a second strip (not shown) extending along the stacking direction at the first height H1 parallel to the second strip section 174, and a first crossing connection section 176 and a second crossing connection section (not shown) connecting the first strip 178 and the second strip, and crossing the first binding section 171 and the second binding section 172 respectively.

[0133] According to the present disclosure, the coupling element 170 may also include: a first strip 178 spaced apart from a bottom side of the first strip section 173 and extending along the stacking direction; a second strip spaced apart from the top side of the second strip section 174 and extending along the stacking direction; a first crossing connection section 176 contacting the first end section 151, connecting one end of the first strip 178 to one end of the second strip and crossing the first binding section 171; and a second crossing connection section contacting the second end section 152, connecting the other end of the first strip 178 to the other end of the second strip and crossing the second binding section 172.

[0134] For example, the coupling element 170 can include: a first strip 178 spaced at the lower end of the first strip section 173 and extending along the stacking direction, and a second strip (not shown) spaced at the upper end of the second strip section 174 and extending along the stacking direction. It can also include: a first crossing connecting section 176 in contact with the first end section 151, which connects one end of the first strip 178 to one end of the second strip and crosses the first binding section 171, and a second crossing connecting section (not shown) in contact with the second end section 152, which connects one end of the first strip 178 to the other end of the second strip and crosses the second binding section 172.

[0135] Fig. Figure 12 illustrates another example of a battery system according to the present disclosure.

[0136] A battery system 1000 according to the present disclosure can comprise a plurality of battery stack arrangements 100 and an insert 180 which is inserted between the plurality of battery stack arrangements 100 which are arranged along a stacking direction and a width direction perpendicular to the height direction.

[0137] According to the present disclosure, a battery system 1000 can comprise: a first battery stack arrangement 110A or a second battery stack arrangement 110B, each containing a plurality of battery cells 110 arranged along a predetermined stacking direction; a first end section 151 and a second end section 152, each having a plate shape and arranged on an outermost side of the plurality of battery cells 110 along the stacking direction; and a first coupling element and a second coupling element integrally surrounding the plurality of battery cells 110, the first end section 151, and the second end section 152, the first coupling element and the second coupling element respectively comprising: a first band section 173 extending along the stacking direction at a predetermined first height H1 along the height direction of the plurality of battery cells 110; a second band section 174;extending along the stacking direction at a second height H2, which is lower than the first height H1, along the vertical direction of the plurality of battery cells 110, and a first binding section 171 and a second binding section 172 respectively, which are arranged opposite the first end section 151 and the second end section 152 and connect an end of the first strip section 173 and an end of the second strip section 174, wherein the first battery stacking arrangement 110A and the second battery stacking arrangement 110B are arranged along a lateral direction perpendicular to the stacking direction and the vertical direction, and at least one section of the first strip section 173 of the first battery stacking arrangement 110A and of the second strip section 174 of the second battery stacking arrangement 110B are positioned such that they overlap each other.

[0138] For example, with reference to Fig. 3, comprising a battery stack arrangement 100 according to the present disclosure: a plurality of battery cells 110 arranged along a predetermined stacking direction; a plate-shaped first end section 151 and a second end section 152 arranged at an outermost side of the plurality of battery cells 110 along the stacking direction; and a first battery stack arrangement 110A and a second battery stack arrangement 110B comprising a coupling element 170 integrally surrounding the plurality of battery cells 110, the first end section 151 and the second end section 152, wherein the first battery stack arrangement 110A and the second battery stack arrangement 110B each comprise: a first ribbon section 173 extending along the stacking direction at a predetermined first height H1 set along a height direction of the plurality of battery cells 110;a second strip section 174, which extends along the stacking direction at a second height H2, which is lower than the first height H1, along the vertical direction of the plurality of battery cells 110, and may each include a first binding section 171 and a second binding section 172, respectively, which are arranged opposite the first end section 151 and the second end section 152 and connect an end of the first strip section 173 to an end of the second strip section 174. Furthermore, the first battery stack arrangement 110A and the second battery stack arrangement 110B may be arranged along a lateral direction perpendicular to the stacking direction and the vertical direction, such that at least one section of the first strip section 173 of the first battery stack arrangement 110A and of the second strip section 174 of the second battery stack arrangement 110 are positioned to overlap each other.

[0139] The plurality of battery stack arrangements 100 can be arranged along the width direction (X-direction). Thus, the battery system 1000 can contain a cavity formed between a pair of adjacent battery stack arrangements 100 of the plurality of battery stack arrangements 100.

[0140] The insert 180 can be arranged in the cavity, i.e. the battery system 1000 according to the present disclosure can also include an insert 180 which is inserted between a first strip section 173 of the first battery stack arrangement 110A and a second strip section 174 of the second battery stack arrangement 110B along the vertical direction.

[0141] The insert 180 may contain a flame-retardant or protective material. Furthermore, the insert 180 may contain a shock-absorbing material. This can delay or prevent heat transfer between the battery cells 110 and protect the battery cells 110 from shocks and vibrations.

[0142] Furthermore, the battery system can arrange 1000 cooling channels within the cavity. This can improve the cooling performance of the battery system.

[0143] There can be configurations that utilize the space, such as cooling channels. This can have the advantage of improving cooling performance, preventing heat transfer between cells during heat propagation, and improving cell protection against impacts.

[0144] With reference to Fig.12 The gap d between the first battery stack arrangement 110A and the second battery stack arrangement 110B can be smaller along the width direction than the sum of the thickness t1 of the first strip section 173 of the first battery stack arrangement 110A and the thickness t2 of the second strip section 174 of the second battery stack arrangement 110B.

[0145] The gap d between the first battery stack arrangement 110A and the second battery stack arrangement 110B can refer to a distance between the housing 115 of one of the battery cells 110 belonging to the first battery stack arrangement 110A and the housing 115 of one of the battery cells 110 belonging to the second battery stack arrangement 110B, which are adjacent to each other.

[0146] In other words, if the first battery stack 110A and the second battery stack 110B are arranged along the width direction, the coupling elements 170 of the first battery stack 110A and the second battery stack 110B do not interfere with each other.

[0147] This means that the first tape section 173 of the first battery stack arrangement 110A and the second tape section 174 of the second battery stack arrangement 110B, which are arranged opposite each other at the coupling elements 170 of the first battery stack arrangement 110A and the second battery stack arrangement 110B, are arranged at different heights.

[0148] When insert 180 is removed, the gap between the first battery stack arrangement 110A and the second battery stack arrangement 110B can be determined by the thickness of the thicker of the first strip section 173 of the first battery stack arrangement 110A and the thickness of the second strip section 174 of the second battery stack arrangement 110B.

[0149] Furthermore, each of the plurality of battery cells 110 can contain a housing 115 which accommodates an electrode arrangement therein, the sum of the length P1 of the first strip section 173 of the first battery stack 110A and the length P2 of the second strip section 174 of the second battery stack 110B or the sum of the length P2 of the second strip section 174 of the first battery stack 110A and the length P1 of the first strip section 173 of the second battery stack 110B can be less than or equal to half the height L of the housing 115 along the vertical direction.

[0150] This means that the length of the insert 180 is at least the sum P1 + P2 of the length P2 of the second strip section 174 of the first battery stack arrangement 110A and the length P1 of the first strip section 173 of the second battery stack arrangement 110B, so that the insert 180 can adequately perform a protective, flame-retardant or heat-dissipating function.

[0151] The person skilled in the art will understand that the multitude of exemplary embodiments described above are specific examples of the following aspects.

[0152] Aspect 1. A battery stack arrangement comprising: a plurality of battery cells arranged along a predetermined stacking direction; a first end section and a second end section, each having a plate shape and arranged at an outermost side of the plurality of battery cells along the stacking direction; and a coupling element integrally surrounding the plurality of battery cells, the first end section, and the second end section; wherein the coupling element comprises: a first band section extending along the stacking direction at a predetermined first height along the vertical direction of the plurality of battery cells; a second band section extending along the stacking direction at a second height lower than the first height along the vertical direction of the plurality of battery cells;and a first binding section and a second binding section, respectively, which are arranged opposite the first end section and the second end section and connect an end of the first tape section and an end of the second tape section; wherein the plurality of battery cells are arranged between the first tape section and the second tape section.

[0153] Aspect 2. The battery stack arrangement according to Aspect 1, wherein the first end section comprises: a contact surface that is an outermost surface of the first end section along the stacking direction; a first side surface and a second side surface that form two side surfaces along a width direction perpendicular to the stacking direction and the height direction and touch the first strip section and the second strip section respectively; and a top surface that forms a top surface of the first end section.

[0154] Aspect 3. The battery stack arrangement according to aspect 1 or 2, wherein a length of each of the plurality of battery cells along the width direction is less than or equal to a length of the first end section.

[0155] Aspect 4. The battery stack arrangement according to aspect 2 or 3, wherein the first end section comprises: a contact groove formed from a groove corresponding to a shape of the first binding section on the contact surface for inserting the first binding section; a first side groove formed from a groove corresponding to a shape of the first band section and recessed along the width direction on the first side surface for inserting the first band section; and a second side groove formed from a groove corresponding to a shape of the second band section and recessed along the width direction on the second side surface for inserting the second band section.

[0156] Aspect 5. The battery stack arrangement according to one of aspects 2 to 4, wherein the first tape section comprises: a first tape connection section positioned on the first side face and extending along the stacking direction; and a first tape reinforcement section positioned on the top face, connected to the first tape connection section, surrounding an edge of the first end section and extending along the stacking direction; and wherein the first binding section comprises: a first binding connection section connected to the first tape connection section; and a first binding reinforcement section connected to the first binding connection section and the first tape reinforcement section.

[0157] Aspect 6. Battery stack arrangement according to one of the preceding aspects, wherein a length of the first strip section differs from a length of the second strip section along the vertical direction or, optionally, wherein the first strip reinforcement section is welded to the first strip joining section or, optionally, wherein the first binding reinforcement section is welded to the first strip reinforcement.

[0158] Aspect 7. Battery stack arrangement according to aspect 5 or 6, wherein the first end section further comprises: a contact groove formed from a groove corresponding to a shape of the first binding section on the contact surface for inserting the first binding section; a first side groove formed from a groove corresponding to a shape of the first strap connecting section and recessed along the width direction on the first side surface for inserting the first strap connecting section; a first top groove formed from a groove corresponding to a shape of the first strap reinforcement section on the top surface, recessed along the height direction and connected to the first side groove for inserting the first strap reinforcement section;and a second side groove formed from a groove corresponding to a shape of the second strip section and recessed along the width direction on the second side surface for inserting the second strip section.

[0159] Aspect 8. Battery stack arrangement according to aspect 7, wherein the first end section further comprises: a first symmetrical groove formed on the first side face with the same shape as the second side groove at a position corresponding to the second side groove; a second symmetrical groove formed on the second side face with the same shape as the first side groove at a position corresponding to the first side groove; and a second top groove formed on the top face with the same shape as the first top groove and connected to the second symmetrical groove.

[0160] Aspect 9. Battery stack arrangement according to any one of aspects 2 to 8, wherein the first strap section comprises: a first strap connecting section positioned on the first side face and extending along the stacking direction; and a first strap auxiliary section positioned on the top face and connected to the first strap connecting section with a predetermined connecting length along the stacking direction; and wherein the first binding section comprises: a first binding connecting section connected to the first strap connecting section; and a first binding auxiliary section connected to the first strap auxiliary section and the first binding connecting section or, optionally, wherein the first binding auxiliary section is welded to the first strap auxiliary section.

[0161] Aspect 10. Battery stack arrangement according to any one of aspects 2 to 9, wherein the first tape section comprises: a first tape connection section positioned on the first side face and extending along the stacking direction; and a first tape reinforcement section positioned on the top face, connected to the first tape connection section, surrounding an edge of the first end section and extending along the stacking direction; and wherein the first binding section comprises: a first binding connection section connected to the first tape connection section; and a first binding aid section connected to the first tape reinforcement section and the first binding connection section or, optionally, wherein the first binding aid section is welded to the first tape reinforcement section.

[0162] Aspect 11. Battery stack arrangement according to one of aspects 2 to 10, wherein the second band section is in contact from the second height to a predetermined height along the height direction or, optionally, wherein the second height is the bottom end of the second side face.

[0163] Aspect 12. Battery stack arrangement according to one of aspects 2 to 11, wherein the coupling element further comprises: a first strip spaced from a bottom of the first strip section and extending along the stacking direction; a second strip spaced from the top of the second strip section and extending along the stacking direction; a first crossing connecting section contacting the first end section, connecting one end of the first strip to one end of the second strip and crossing the first binding section; and a second crossing connecting section contacting the second end section, connecting the other end of the first strip to the other end of the second strip and crossing the second binding section.

[0164] Aspect 13. Battery stack arrangement according to any of the preceding aspects, comprising: a first battery stack arrangement and a second battery stack arrangement, wherein the first battery stack arrangement and the second battery stack arrangement are arranged along a width direction perpendicular to the stack direction and the height direction, and at least one section of the first band section of the first battery stack arrangement and the second band section of the second battery stack arrangement are positioned such that they overlap each other.

[0165] Aspect 14. Battery stack arrangement according to aspect 13, further comprising: an insert placed between the first strip section of the first battery stack arrangement and the second strip section of the second battery stack arrangement along the vertical direction or, optionally, wherein a gap between the first battery stack arrangement and the second battery stack arrangement is smaller than the sum of the thicknesses of the first strip section of the first battery stack arrangement and the second strip section of the second battery stack arrangement along the horizontal direction.

[0166] Aspect 15. Battery stack arrangement according to aspect 13 or 14, wherein each of the plurality of battery cells contains a housing that accommodates an electrode arrangement therein, and wherein the sum of the lengths of the first strip section of the first battery stack arrangement and the second strip section of the second battery stack arrangement, or the sum of the lengths of the second strip section of the first battery stack arrangement and the first strip section of the second battery stack arrangement, is less than or equal to half the height of the housing along the vertical direction.

[0167] The present disclosure can be implemented in various modifications and is not limited to the embodiments described above. Therefore, if a modified embodiment contains components of the patent claims, it should be considered to be within the scope of the present disclosure.

Claims

[1] Battery stack arrangement comprising: a large number of battery cells arranged along a predetermined stacking direction; a first end section and a second end section, each having a plate shape and arranged on an outermost side of the plurality of battery cells along the stacking direction; and a coupling element that integrally surrounds the multitude of battery cells, the first end section and the second end section; where the coupling element contains: a first strip section extending along the stacking direction at a predetermined first height along the vertical direction of the multitude of battery cells; a second strip section extending along the stacking direction at a second height lower than the first height, along the vertical direction of the multitude of battery cells; and a first binding section or a second binding section, which are arranged opposite the first end section and the second end section and connect one end of the first band section and one end of the second band section; the multitude of battery cells is arranged between the first belt section and the second belt section. [2] Battery stack arrangement according to claim 1, wherein the first end section comprises: a contact surface that is an outermost surface of the first end section along the stacking direction; a first side surface and a second side surface, forming two side surfaces along a lateral direction perpendicular to the stacking direction and the vertical direction, and touching the first strip section and the second strip section respectively; and an upper surface that forms a top surface of the first end section. [3] Battery stack arrangement according to claim 1 or 2, wherein a length of each of the plurality of battery cells along the width direction is less than or equal to a length of the first end section. [4] Battery stack arrangement according to claim 2 or 3, wherein the first end section comprises: a contact groove formed from a groove corresponding to a shape of the first bonding section on the contact surface for inserting the first bonding section; a first side groove formed from a groove corresponding to the shape of the first strip section and recessed along the width direction on the first side surface for inserting the first strip section; and a second side groove formed from a groove corresponding to a shape of the second strip section and recessed along the width direction on the second side surface for inserting the second strip section. [5] Battery stack arrangement according to any one of claims 2 to 4, wherein the first strip section comprises: a first band connection section positioned on the first side face and extending along the stacking direction; and a first band reinforcement section positioned on the top face, connected to the first band connection section, surrounding an edge of the first end section and extending along the stacking direction; and the first binding section comprises the following: a first binding connection section connected to the first tape connection section; and a first binding reinforcement section connected to the first binding connection section and the first tape reinforcement section. [6] Battery stack arrangement according to one of the preceding claims, wherein a length of the first belt section differs from a length of the second belt section along the vertical direction or, optional, wherein the first band reinforcement section is welded to the first band connection section or, optional, with the first binding reinforcement section being welded to the first band reinforcement. [7] Battery stack arrangement according to claim 5 or 6, wherein the first end section further comprises: a contact groove formed from a groove corresponding to a shape of the first bonding section on the contact surface for inserting the first bonding section; a first side groove formed from a groove corresponding to a shape of the first band connection section and recessed along the width direction on the first side surface for inserting the first band connection section; a first upper groove formed from a groove corresponding to a shape of the first strip reinforcement section on the upper surface, recessed along the vertical direction and connected to the first side groove for inserting the first strip reinforcement section; and a second side groove formed from a groove corresponding to a shape of the second strip section and recessed along the width direction on the second side surface for inserting the second strip section. [8] Battery stack arrangement according to claim 7, wherein the first end section further comprises: a first symmetrical groove formed on the first side surface with the same shape as the second side groove at a position corresponding to the second side groove; a second symmetrical groove formed on the second side surface with the same shape as the first side groove at a position corresponding to the first side groove; and a second upper groove formed on the upper surface with the same shape as the first upper groove and connected to the second symmetrical groove. [9] Battery stack arrangement according to any one of claims 2 to 8, wherein the first strip section comprises: a first band connection section positioned on the first side face and extending along the stacking direction; and a first auxiliary band section positioned on the top face and connected to the first band connection section with a predetermined connection length along the stacking direction; and the first binding section comprises the following: a first binding connection section connected to the first tape connection section; and a first binding auxiliary section connected to the first tape auxiliary section and the first binding connection section or, optionally, wherein the first binding auxiliary section is welded to the first tape auxiliary section. [10] Battery stack arrangement according to any one of claims 2 to 9, wherein the first strip section comprises: a first band connection section positioned on the first side face and extending along the stacking direction; and a first band reinforcement section positioned on the top face, connected to the first band connection section, surrounding an edge of the first end section and extending along the stacking direction; and the first binding section comprises the following: a first binding connection section connected to the first tape connection section; and a first binding aid section connected to the first tape reinforcement section and the first binding connection section or, optionally, wherein the first binding aid section is welded to the first tape reinforcement section. [11] Battery stack arrangement according to any one of claims 2 to 10, wherein the second band section is in contact from the second height to a predetermined height along the height direction or, optionally, wherein the second height is the lowest end of the second side surface. [12] Battery stack arrangement according to any one of claims 2 to 11, wherein the coupling element further comprises: a first strip spaced from an underside of the first strip section and extending along the stacking direction; a second strip spaced apart from the upper section of the second strip section and extending along the stacking direction; a first crossing connection section that contacts the first end section, connects one end of the first band to one end of the second band and crosses the first binding section; and a second crossing connecting section that contacts the second end section, connects the other end of the first band to the other end of the second band and crosses the second binding section. [13] Battery stack arrangement according to any one of the preceding claims, comprising: a first battery stack arrangement and a second battery stack arrangement, wherein the first battery stack arrangement and the second battery stack arrangement are arranged along a width direction perpendicular to the stack direction and the height direction, and at least one section of the first band section of the first battery stack arrangement and the second band section of the second battery stack arrangement are positioned such that they overlap each other. [14] Battery stack arrangement according to claim 13, further comprising: an insert that is placed between the first strip section of the first battery stack arrangement and the second strip section of the second battery stack arrangement along the vertical direction or, optionally, wherein a gap between the first battery stack arrangement and the second battery stack arrangement is smaller than the sum of the thicknesses of the first strip section of the first battery stack arrangement and the second strip section of the second battery stack arrangement along the horizontal direction. [15] Battery stack arrangement according to claim 13 or 14, wherein each of the plurality of battery cells includes a housing that accommodates an electrode arrangement therein, and wherein the sum of the lengths of the first strip section of the first battery stack arrangement and the second strip section of the second battery stack arrangement or the sum of the lengths of the second strip section of the first battery stack arrangement and the first strip section of the second battery stack arrangement is less than or equal to half the height of the housing along the vertical direction.

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