Battery pack and electric vehicle

Abstract

A battery pack and an electric vehicle are disclosed. The battery pack includes: a plurality of battery cells; a thermistor configured to measure temperature information of at least one of the plurality of battery cells; a battery cell holder configured to control an assembly position of the plurality of battery cells, and including an assembly member configured to orient an assembly position of the thermistor toward a position not deviating from the plurality of battery cells and to orient an assembly posture of the thermistor toward the plurality of battery cells; and a circuit portion connected to the thermistor, the circuit portion configured to receive measured temperature information from the thermistor. Accordingly, reliability of temperature measurement with respect to the plurality of battery cells may be improved.

Description

[0001] This application claims priority and benefit to Korean Patent Application No. 10-2024-0111617, filed on August 20, 2024, with the Korean Intellectual Property Office, the entire disclosure of which is incorporated herein by reference. Technical Field

[0002] This disclosure relates to battery packs and electric vehicles. Background Technology

[0003] Unlike primary batteries, which are non-rechargeable, secondary batteries are batteries that can be charged and discharged. Secondary batteries can be used as an energy source for mobile devices, electric vehicles, hybrid vehicles, electric bicycles, uninterruptible power supplies, etc., and depending on the type of external device to which they are used, they can be used as a single cell or as a battery pack in which multiple cells are grouped into units.

[0004] Small mobile devices, such as cellular phones, can operate for a predetermined period of time using the output and capacity of a single battery. However, mobile devices with relatively large sizes, such as laptop computers, and vehicles such as electric or hybrid vehicles that consume relatively large amounts of power and require long-duration, high-power operation, preferably include battery packs containing multiple batteries due to output and capacity issues. Furthermore, the output voltage or output current can be increased depending on the number of batteries housed in such a battery pack. Summary of the Invention

[0005] One or more embodiments include a battery pack in which an assembly configured to control the assembly position and orientation of a thermistor or a measuring line portion thereon for measuring the temperature of a battery cell can be formed on a battery cell support, and thus the relative position of the battery cell and the thermistor for measuring the temperature of the battery cell can be precisely controlled. The assembly is configured to control the assembly position and orientation (or orientation) of the thermistor or the measuring line portion thereon such that it is oriented downward toward the upper portion of the battery cell at a position not deviating from (or substantially not deviating from) the upper portion of the battery cell, and thus the reliability of temperature measurement relative to the battery cell can be improved.

[0006] Other aspects will be set forth in part in the description which follows and will be apparent in part from the description, or may be learned by practicing the embodiments presented in this disclosure.

[0007] One or more embodiments include a battery pack comprising: a plurality of battery cells; a thermistor configured to measure temperature information of at least one of the plurality of battery cells; a battery cell support configured to control the assembly position of the plurality of battery cells and including an assembly configured to offset the assembly position of the thermistor substantially without deviating from the battery cells and to offset the assembly posture of the thermistor toward the battery cells; and a circuit portion connected to the thermistor, the circuit portion being configured to receive the measured temperature information from the thermistor.

[0008] For example, the assembly can be further configured to offset the assembly position and orientation of the measurement line portion on which the thermistor is mounted.

[0009] For example, the assembly can be configured to force the assembly posture of each of the thermistor and the measuring line portion to be oriented downward toward the plurality of battery cells, and the assembly position of the measuring line portion on which the thermistor is mounted can be on the upper part of the plurality of battery cells.

[0010] For example, the assembly can be configured such that the assembly position and assembly posture of the measuring line portion on which the thermistor is mounted are controlled such that the measuring line portion on which the thermistor is mounted contacts the upper part of the battery cell.

[0011] For example, the assembly may include an assembly slit and an assembly guide on the opposite side of the measuring line portion on which the thermistor is mounted.

[0012] For example, assembling a slit assembly may include a downwardly sloping edge of a measuring line portion configured to force a thermistor to be mounted thereon.

[0013] For example, the assembly slit may include an assembly slit configured to allow a measuring wire portion of a thermistor mounted thereon to pass through, the measuring wire portion extending from a support plate supported on a battery cell holder and connected to a second connecting wire portion of the circuitry.

[0014] For example, the assembly slit can be located between the support plate of the battery cell holder and the downwardly sloping edge of the assembly slit in the assembly, which is configured to control the assembly position and assembly posture of the measurement line portion.

[0015] For example, the measuring wire portion mounted on the thermistor can be bent while being inserted and assembled into the assembly, and the measuring wire portion can be bent from an upper position to a lower position relative to the second connecting wire portion, the measuring wire portion extending from the second connecting wire portion, and the second connecting wire portion connecting to the circuit portion.

[0016] For example, the measuring line portion of the thermistor mounted thereon can be provided with a margin of length remaining after contact with the upper portion of the battery cell by a portion that is bent upward relative to the second connecting line portion.

[0017] For example, multiple battery cells can be arranged in multiple columns, each of the multiple columns including multiple battery cells in a first direction, the multiple columns being arranged in a second direction intersecting the first direction, and the assembly can surround the thermistor or the measuring line portion on which the thermistor is mounted in an open-loop shape that is open in the plane formed by the first and second directions.

[0018] For example, the open-loop shape can be opened by a first opening and a second opening on the opposite side of the thermistor or the measuring line portion on which the thermistor is mounted.

[0019] For example, the first opening can be configured to allow the measuring line portion of the thermistor mounted thereon to extend from the second connecting line portion connected to the circuit portion, and the second opening on the opposite side of the first opening can be configured to allow the distance between the assembly slit and the assembly guide of the assembly.

[0020] For example, the assembly slit and the assembly guide can be spaced apart from each other by the first opening and the second opening.

[0021] For example, the assembly slit and assembly guide can surround different sides of the thermistor or the measuring line portion on which the thermistor is mounted.

[0022] For example, a thermistor can be mounted on a measuring line portion extending from a second connecting line portion in a direction intersecting the first direction, the second connecting line portion being connected to the circuit portion and extending in the first direction, and the assembly slit and assembly guide can be spaced apart from each other in the first direction.

[0023] For example, the assembly slit and assembly guide may include a first segment extending in a second direction intersecting the first direction, and the assembly slit may further include a second segment extending in the first direction and may further include a third segment extending in an oblique direction relative to the first and second directions between the first and second segments.

[0024] For example, multiple battery cells can be arranged in multiple columns, each comprising multiple battery cells arranged in a first direction, and the multiple columns can be arranged in a second direction intersecting the first direction.

[0025] For example, the assembly may surround the thermistor or the measuring line portion on which the thermistor is mounted in an open-loop shape in a plane formed by a first direction and a second direction, which is opened by a first opening and a second opening formed on opposite sides of each other in the second direction.

[0026] For example, the assembly slit and assembly guide of the assembly can be spaced apart from each other in a first direction, and can be spaced apart from each other by a first opening and a second opening on opposite sides of each other in a second direction that intersects the first direction.

[0027] One or more embodiments include an electric vehicle, which includes a battery pack as a power source. Attached Figure Description

[0028] The above and other aspects, features and advantages of certain embodiments of the present disclosure will become more apparent from the following description taken in conjunction with the accompanying drawings, in which:

[0029] Figure 1 This is a perspective view of a battery pack according to an embodiment of the present disclosure. The perspective view shows: a first battery module and a second battery module, arranged adjacent to each other in a first direction; a busbar forming an electrical connection between a plurality of battery cells included in each of the first and second battery modules; and a flexible printed circuit (FPC) including a first connecting line portion for electrically connecting the first and second battery modules to each other and a second connecting line portion for transmitting temperature information measured from battery cells selected from the plurality of battery cells forming the first and second battery modules. The perspective view also shows battery cell supports. Figure 1 Thermistors, configured to transmit temperature information from some of the multiple battery cells included in each of the first and second battery modules, are connected to a measuring line portion extending from the second connecting line portion at the first and second positions, or at the first and second positions, an assembly is formed for controlling the assembly position and assembly posture (orientation) of the measuring line portion.

[0030] Figure 2 It is one of the assemblies Figure 1 The diagram shows a perspective view of a battery cell support including multiple battery cells in a first battery module or a second battery module, a busbar electrically connecting the multiple battery cells to each other, and a second connecting line portion for transmitting temperature information selected from the multiple battery cells. In the battery cell support, a first position and a second position are indicated. At the first position and the second position, a thermistor configured to transmit the temperature information of the battery cells is connected to a measuring line portion extending from the second connecting line portion. Alternatively, at the first position and the second position, an assembly for controlling the assembly position and assembly posture of the measuring line portion is formed.

[0031] Figures 3 to 5 Is Figure 1 and Figure 2The diagram shows different perspective views of the second connecting line portion and the support plate for supporting the battery cell bracket in each of the diagrams. These different perspective views are shown to describe the battery cell bracket in... Figure 1 and Figure 2 The structure of the assembly at the first and second positions for controlling the assembly position and assembly posture (orientation) of the measuring line portion extending from the second connecting line portion;

[0032] Figure 6 yes Figure 5 The second connecting line portion and the support plate of the battery cell bracket are shown in a cross-sectional view along line VI-VI, illustrating the structure of the battery cell bracket assembly; and

[0033] Figure 7 This is a perspective view of a battery pack according to a comparative embodiment, illustrating the structure of an assembly on which the measuring line portion of the thermistor is mounted. Detailed Implementation

[0034] The embodiments illustrated in the accompanying drawings will now be described in detail, wherein the same reference numerals refer to the same elements throughout. In this respect, the presented embodiments may take different forms and should not be construed as limited to the description set forth herein. Accordingly, the embodiments are described below only by reference to the accompanying drawings to illustrate aspects of the presented description. As used herein, the term “and / or” includes any and all combinations of one or more of the listed items. If a statement such as “at least one of…” follows a list of elements, it modifies the entire list of elements without modifying any individual element in the list.

[0035] In the following description, a battery pack according to an embodiment of the present disclosure is described with reference to the accompanying drawings.

[0036] Figure 1 This is a perspective view of a battery pack according to an embodiment of the present disclosure, showing: a first battery module M1 and a second battery module M2, adjacent to each other in a first direction Z1; a busbar B, comprising a plurality of battery cells 10 included in each of the first battery module M1 and the second battery module M2 (see...). Figure 2 The flexible printed circuit (FPC) 200 forms an electrical connection between the first battery module M1 and the second battery module M2; the FPC 200 includes a plurality of first connection line portions 210 for electrically connecting the first battery module M1 and the second battery module M2 to each other, and a plurality of battery cells 10 selected from the first battery module M1 and the second battery module M2 for transmitting electrical connections between them (see [link to FPC]). Figure 2 The battery cell 10 (see) Figure 2 At least one second connection portion 220 for measuring temperature information; and the battery cell holder H (see Figure 2 ). Figure 1Indicating the first position P1 and the second position P2, at the first position P1 and the second position P2, the thermistor TH (see...) Figure 5 ) is configured to transmit some battery cells 10 included in each of the first battery module M1 and the second battery module M2 (see Figure 2 The temperature information is connected to the measuring line portion 230 extending from the second connecting line portion 220 (see...). Figure 3 ). Figure 1 It also indicates where the assembly part 100 is formed for controlling the assembly position and assembly posture of the measuring line portion 230 (see...). Figure 3 The first position P1 and the second position P2.

[0037] Figure 2 This is a perspective view of a structure comprising a plurality of battery cells 10 included in a first battery module M1 or a second battery module M2, a busbar B electrically connecting the plurality of battery cells 10 to each other, and a second connecting line portion 220 for transmitting temperature information selected from the plurality of battery cells 10. Figure 2 In the battery cell support H, a thermistor TH, configured to transmit temperature information of the battery cell 10, is connected to a first position P1 and a second position P2 of a measuring line portion 230 extending from the second connecting line portion 220, or forms an assembly 100 therefor controlling the assembly position and assembly posture of the measuring line portion 230 (see [link to assembly 100]). Figure 3 The first position P1 and the second position P2.

[0038] Reference Figure 1 and Figure 2A battery pack according to an embodiment of the present disclosure may include: a first battery module M1 and a second battery module M2, adjacent to each other in a first direction Z1; a plurality of busbars B for electrically connecting a plurality of battery cells 10 included in each of the first battery module M1 and the second battery module M2; a first connecting line portion 210 for electrically connecting the busbars B of the first battery module M1 and the second battery module M2 to each other; and one or more second connecting line portions 220 for transmitting temperature information measured from a battery cell 10 selected from the plurality of battery cells 10 forming the first battery module M1 and the second battery module M2. According to one or more embodiments of the present disclosure, the first connecting line portion 210 and the second connecting line portion 220 may extend away from (e.g., branch off from) a line body 201 extending in a second direction Z2 between the first battery module M1 and the second battery module M2, which are adjacent to each other along the first direction Z1, and the first connecting line portion 210, the second connecting line portion 220, and the line body 201 may form an FPC 200 connected to a circuit portion C of the battery pack. In one or more embodiments, the FPC 200 can be connected to the circuit section C to transmit status information such as current or voltage in the charging or discharging paths of the first battery module M1 and the second battery module M2, or it can be connected to the circuit section C to transmit temperature information of some of the battery cells 10 selected from the first battery module M1 and the second battery module M2. As described below, the circuit section C can receive status information such as voltage, current, and / or temperature of the battery cells 10 through the FPC 200, and based on the received status information of the battery cells 10, the circuit section C can generate switching control signals for controlling the opening and closing of charging and discharging switches formed on the charging and discharging paths of the battery cells 10.

[0039] exist Figure 1 In this context, the assembly position can indicate the location where each battery cell 10 is assembled. For example... Figure 1 As illustrated, the plurality of battery cells 10 included in the battery pack may include battery cells 10 arranged in multiple columns in a first direction Z1 and battery cells 10 arranged in multiple columns in a second direction Z2. Each of the battery cells 10 arranged in multiple columns in the first direction Z1 may correspond to each of the battery cells 10 arranged in multiple columns in the second direction Z2.

[0040] As described below, battery cells 10 arranged in the same column in the first direction Z1 can form a parallel module PM when the same polarity of the battery cells 10 is connected to each other, and battery cells 10 arranged in different columns in the second direction Z2 can be connected in series when the different polarities of the battery cells 10 are connected to each other. For example, a battery pack according to an embodiment of the present disclosure may include a plurality of battery cells 10, in which the parallel module PM in the first direction Z1 is connected in series to another parallel module PM adjacent to it in the second direction Z2, thereby forming an electrical connection that combines both series connection and parallel connection. For example, according to an embodiment of the present disclosure, battery cells 10 in a column in the first direction Z1 can be connected in parallel to each other, thereby forming a parallel module PM, and battery cells 10 in adjacent columns in the second direction Z2 can be connected in series to each other, thereby forming a series connection between the parallel modules PM adjacent to each other along the second direction Z2. As described above, according to embodiments of the present disclosure, the battery pack may include a plurality of battery cells 10 connected to each other in a combination of series and parallel connections, depending on the output and capacity required by the means to supply power to the battery pack, and the battery pack may include a combination of series and parallel connections, depending on the output and capacity of the means.

[0041] A battery pack according to an embodiment of the present disclosure may include a busbar B for electrically connecting different battery cells 10. The busbar B can connect different battery cells 10 to each other, and thus can electrically connect different battery cells 10 to form the output of a battery pack comprising a plurality of battery cells 10. For example, the busbar B may include a main body portion B1 extending in a first direction Z1 and a plurality of branch portions B2 extending from the main body portion B1 in a direction intersecting the first direction Z1 and extending between the plurality of battery cells 10. For example, the main body portion B1 of the busbar B may connect battery cells 10 arranged in columns extending parallel to each other in the first direction Z1 (forming parallel modules PM), and may connect battery cells 10 arranged in adjacent columns and extending in the first direction Z1 in series therebetween (connecting adjacent parallel modules PM in series). For example, according to an embodiment of the present disclosure, the branch portions B2 may include a plurality of branch portions B2 extending from the main body portion B1 extending in the first direction Z1 in a direction intersecting the first direction Z1. The branch portion B2 may extend from the main body portion B1 extending in the first direction Z1 to be adjacent to each of the battery cells 10, thereby forming an electrical connection with each of the battery cells 10.

[0042] The battery pack according to embodiments of the present disclosure may further include contact members W that form an electrical connection between battery cells 10 and branch portions B2 extending from the main body portion B1 of the busbar B toward each adjacent location in the battery cells 10. The contact members W may connect battery cells 10 of the same polarity in the same column to form a parallel module PM, or may connect battery cells 10 of different polarities in columns adjacent to each other to form a series connection between different parallel modules PM. For example, the contact members W may include one end connected to the branch portion B2 and the other end extending from the branch portion B2 and connected to the electrode of the battery cell 10, and the contact members W may be a thin metal wire, such as wiring connecting the branch portion B2 at one end to the electrode of the battery cell 10 at the other end.

[0043] According to embodiments of the present disclosure, the busbar B may include a plurality of main body portions B1 and a plurality of branch portions B2, each of the plurality of main body portions B1 extending in a first direction Z1 and arranged in a second direction Z2 intersecting the first direction Z1, and the plurality of branch portions B2 extending from each of the main body portions B1 toward each other, such that the plurality of branch portions B2 extending from the main body portions B1 toward each other and arranged to be adjacent to each other in the first direction Z1 can be alternately inserted into the busbar B in a comb-like (e.g., staggered or interlaced) shape.

[0044] According to embodiments of this disclosure, the branch portion B2 of the busbar B can extend from the main body portion B1 of the busbar B, which extends in the first direction Z1, in a direction intersecting the first direction Z1. For example, the branch portion B2 of the busbar B can extend from the main body portion B1 of the busbar B in an oblique direction relative to the first direction Z1 and the second direction Z2. Furthermore, by using the branch portions B2 extending in an oblique direction (relative to the first direction Z1 and the second direction Z2) between the battery cells 10 (which are arranged in a zigzag shape between adjacent columns, such that a battery cell 10 in one column is inserted between battery cells 10 in an adjacent column), an electrical connection can be formed between battery cells 10 in adjacent columns.

[0045] According to embodiments of the present disclosure, a battery cell 10 may be electrically connected via one of its upper end portion 11 and lower end portion 12 in an upward and downward direction on a third direction Z3 intersecting the first direction Z1 and the second direction Z2, and may not be electrically connected via the other. For example, the battery cell 10 may include a first electrode at the center of the upper end portion 11 and a second electrode extending from the lower end portion 12 to the edge of the upper end portion 11 via a circumferential surface 15 connecting the upper end portion 11 and the lower end portion 12. The first electrode and the second electrode of the battery cell 10 may be located together in the upper end portion 11 of the battery cell 10. For example, the first electrode and the second electrode of the battery cell 10 may be located at the center and the edge of the upper end portion 11, respectively, separated from each other with an insulating gap therebetween. According to embodiments of the present disclosure, a contact member W that forms a conductive contact with the first electrode at the center of the upper end portion 11 of the battery cell 10 and a contact member W that forms a conductive contact with the second electrode at the edge of the upper end portion 11 of the battery cell 10 may both be electrically connected to the upper end portion 11 of the battery cell 10. Additionally, the battery cell 10 can form an electrical connection through its upper portion 11, but it can form an electrical connection without using its lower portion 12. According to embodiments of this disclosure, the entire electrical connection of the battery cell 10 can be achieved through one of the upper portion 11 and the lower portion 12 at opposite ends on a third direction Z3 intersecting the first direction Z1 and the second direction Z2, and can be achieved without using the other. According to embodiments of this disclosure, the battery cell 10 can be cooled through the end opposite to the end through which the electrical connection is achieved, and the electrical connection and cooling of the battery cell 10 can be spatially separated from each other so that the electrical connection and cooling of the battery cell 10 do not physically and electrically interfere with each other. For example, the electrical connection can be achieved through the upper portion 11 of the battery cell 10, and the cooling can be achieved through the lower portion 12 of the battery cell 10. In one or more embodiments, a cooling plate configured to form thermal contact with the battery cell 10 by extending across the lower portion 12 of the battery cell 10 can be arranged in the lower portion 12 of the battery cell 10.

[0046] A plurality of battery cells 10 included in a battery pack according to embodiments of the present disclosure may include an upper end portion 11 having a circular shape, a lower end portion 12 having a circular shape, and a circumferential surface 15 connecting the upper end portion 11 and the lower end portion 12. For example, the battery cell 10 may have an approximately cylindrical shape including a circular cross-sectional shape.

[0047] According to embodiments of this disclosure, a battery pack may include a first battery module M1 and a second battery module M2 that are different from each other and arranged in a first direction Z1. For example, the first battery module M1 and the second battery module M2 that are different from each other and arranged in the first direction Z1 may be electrically connected to each other through a line body 201 extending in a second direction Z2 between the first battery module M1 and the second battery module M2 arranged in the first direction Z1 and a first connecting line portion 210 extending from the line body 201 toward each of the first battery module M1 and the second battery module M2. In addition, the busbars B of the first battery module M1 and the second battery module M2 may be electrically connected to each other through the first connecting line portion 210 extending in the first direction Z1 toward the busbars B of the first battery module M1 and the second battery module M2 from the line body 201 extending in the second direction Z2 along the module gap MG between the first battery module M1 and the second battery module M2. According to an embodiment of the present disclosure, the line body 201 extending along the second direction Z2 of the module gap MG between the first battery module M1 and the second battery module M2 arranged along the first direction Z1, and the first connecting line portion 210 and the second connecting line portion 220 extending along the first direction Z1 from the line body 201 toward the first battery module M1 and the second battery module M2, can form an FPC 200 electrically connected to the circuit portion C of the battery pack.

[0048] According to embodiments of this disclosure, the line body 201 can extend along the module gap MG in the second direction Z2 between a first battery module M1 and a second battery module M2 that are adjacent to each other along the first direction Z1. Furthermore, in order to form an electrical connection between the line body 201 extending along the module gap MG in the second direction Z2 and the busbar B (main body portion B1 of the busbar B) of each of the first battery module M1 and the second battery module M2, so as to form an electrical connection with the busbar B (main body portion B1 of the busbar B) of each of the first battery module M1 and the second battery module M2 that are adjacent to each other in the first direction Z1, which is approximately intersecting the direction in which the line body 201 extends along the module gap MG, a first connecting line portion 210 can extend from the line body 201 toward the busbar B of each of the first battery module M1 and the second battery module M2. For example, a first connecting line portion 210 extending in an approximately opposite direction along the first direction Z1 from the main body 201 of the line extending in the second direction Z2 between the first battery module M1 and the second battery module M2 which are adjacent to each other along the first direction Z1 can form an electrical connection with the busbar B (the end of the main body portion B1 of the busbar B) of each of the first battery module M1 and the second battery module M2.

[0049] According to embodiments of this disclosure, the FPC 200 can electrically connect a first battery module M1 and a second battery module M2 that are adjacent to each other in a first direction Z1. It can receive state information such as voltage and current on the charging or discharging paths of the first battery module M1 and the second battery module M2, and can transmit the state information to the circuit portion C of the battery pack, which serves as a battery management system (BMS). According to embodiments of this disclosure, the FPC 200 can collect temperature information from some of the battery cells 10 selected from the first battery module M1 and the second battery module M2, and transmit the temperature information to the circuit portion C of the battery pack, which serves as a BMS. For example, according to embodiments of this disclosure, the FPC 200 can electrically connect the first battery module M1 and the second battery module M2 (arranged adjacent to each other in the first direction Z1) to each other, collect state information from some of the battery cells 10 of the first battery module M1 and the second battery module M2, and transmit the state information to the circuit portion C of the battery pack, which serves as a BMS.

[0050] For example, according to an embodiment of the present disclosure, the FPC 200 may include a line body 201 and a first connecting line portion 210 and a second connecting line portion 220 extending from the line body 201 approximately in a first direction Z1 toward a first battery module M1 and a second battery module M2. For example, according to an embodiment of the present disclosure, the line body 201 may extend in a second direction Z2 along the module gap MG between the first battery module M1 and the second battery module M2, which are arranged adjacent to each other in the first direction Z1. A plurality of first connecting line portions 210 may extend intermittently from the line body 201 in the second direction Z2 and may extend approximately in the first direction Z1. The line body 201 may form an electrical connection with the busbar B (the main body portion B1 of the busbar B) of the first battery module M1 and the second battery module M2.

[0051] According to embodiments of this disclosure, a first connecting line portion 210 and a second connecting line portion 220 extending approximately in the first direction Z1 from the line body 201 extending along the module gap MG in the second direction Z2 may include a first connecting line portion 210 electrically connected to the busbar B (the main body portion B1 of the busbar B) of the first battery module M1 and the second battery module M2, and a second connecting line portion 220 configured to transmit temperature information of the battery cells 10 forming the first battery module M1 and the second battery module M2. Furthermore, among the first connecting line portions 210 and the second connecting line portions 220 extending approximately in the first direction Z1 from the line body 201 extending in the second direction Z2, the number of first connecting line portions 210 extending in the first direction Z1 may be greater than the number of second connecting line portions 220 extending in the first direction Z1 from the line body 201.

[0052] For example, the number of first connecting line portions 210 can correspond to the number of busbars B (the main body portion B1 of busbar B) in the first battery module M1 and the second battery module M2.

[0053] For example, the second connecting line portion 220 can be configured to transmit temperature information measured from some of the battery cells 10 among a plurality of battery cells 10 in the first battery module M1 and the second battery module M2. According to embodiments of this disclosure, the second connecting line portion 220 can be configured to transmit temperature information measured from a selection of battery cells 10 (these battery cells 10 correspond to a first position P1 and a second position P2 on the first battery module M1 and the second battery module M2). The second connecting line portion 220 can extend from a line body 201 extending in a second direction Z2 along a first direction Z1 toward the first position P1 and the second position P2 of the first battery module M1 and the second battery module M2.

[0054] According to embodiments of this disclosure, the first position P1 and the second position P2 of the first battery module M1 and the second battery module M2 can correspond to the temperature measurement positions of the first battery module M1 and the second battery module M2 along the second connecting line portion 220 (the second connecting line portion 220 extends along the first direction Z1). According to embodiments of this disclosure, the first position P1 and the second position P2 of the first battery module M1 and the second battery module M2 can be different positions along the first direction Z1. For example, according to embodiments of this disclosure, the first battery module M1 and the second battery module M2 can have a substantially symmetrical shape. For example, the number of battery cells 10 forming the first battery module M1 and the second battery module M2 or the electrical connections of the battery cells 10 can be provided such that the first battery module M1 and the second battery module M2 can have a substantially symmetrical shape to each other. Therefore, the temperature distribution resulting from the heating of the first battery module M1 and the second battery module M2 can be predicted to have an approximately symmetrical temperature profile. Therefore, according to embodiments of this disclosure, the temperature measurement positions (set at first positions P1 and second positions P2 on the first battery module M1 and the second battery module M2 for transmitting the measured temperature information) can be different positions in the first direction Z1. Thus, the temperature measurement positions can be configured to prevent repeated measurements of temperature in substantially symmetrical positions on the first battery module M1 and the second battery module M2, or repeated transmission of substantially repetitive temperature information. According to embodiments of this disclosure, the first positions P1 and second positions P2 of the second connecting line portion 220 extending from the line body 201 can be different positions from each other in the first direction Z1. Therefore, although the number of temperature measurement positions on the first battery module M1 and the second battery module M2 (i.e., the number of first positions P1 and second positions P2 for transmitting the measured temperature information) can be minimized, the overall temperature distribution in the battery pack including the first battery module M1 and the second battery module M2 can be determined. Therefore, since the temperature measurement positions on the first battery module M1 and the second battery module M2 (i.e., the first position P1 and the second position P2 used to transmit the measured temperature information) can be different positions along the first direction Z1, the number of thermistors TH used for temperature measurement can be reduced (see...). Figure 5 The number of thermistors TH is thus determined. Therefore, the overall temperature distribution or temperature profile in the battery pack, including the first battery module M1 and the second battery module M2, can be determined by using a limited number of thermistors TH (see...). Figure 5 This can be used to predict or determine costs, which reduces the overall cost.

[0055] For example, refer to Figure 1According to embodiments of the present disclosure, the first position P1 of the first battery module M1 may be the rear end of the first battery module M1 at its center position in the second direction Z2 and adjacent to the center position of the first battery module M1. However, the second position P2 of the second battery module M2 may be at the front end of the second battery module M2 and adjacent to the front portion position of the second battery module M2, in which the circuit portion C of the battery pack is arranged as a BMS. As described above, according to embodiments of the present disclosure, the first position P1 and the second position P2 may be at the rear end and the front end, respectively, opposite to each other along the second direction Z2. The first position P1 may be the rear end of the first battery module M1 at its center position and adjacent to the center position of the first battery module M1, where heat accumulation may be relatively large due to the distance between the battery pack and the outside. In one or more embodiments, the first position P1 may be at the rear end opposite to the second position P2 along the second direction Z2. In one or more embodiments, the second position P2 may be located at the front end of the second battery module M2, where the circuit portion C of the battery pack is arranged as a BMS.

[0056] According to embodiments of this disclosure, the first position P1 and the second position P2 may represent locations in the second direction Z2 where temperature information measured from the battery cell 10 is transmitted. For example, in an embodiment where a plurality of first positions P1 and a plurality of second positions P2 are along a second connecting line portion 220 (which extends approximately in the first direction Z1 from a line body 201 extending in the second direction Z2), the first positions P1 and the second positions P2 may include a plurality of first positions P1 and a plurality of second positions P2, and the plurality of first positions P1 and the plurality of second positions P2 may form a group of first positions P1 and second positions P2 that are approximately aligned with or adjacent to each other in the first direction Z1.

[0057] According to embodiments of this disclosure, the extension lengths of the line body 201 extending from the module gap MG between the first battery module M1 and the second battery module M2 in the second direction Z2 are approximately equal to the extension lengths of the first connecting line portion 210 and the second connecting line portion 220 extending in the first direction Z1, satisfying the relationship that the extension length of the first connecting line portion 210 is less than the extension length of the second connecting line portion 220. According to embodiments of this disclosure, the first connecting line portion 210 can extend a relatively short length from the line body 201 to the external busbar B (the main body portion B1 of the busbar B) of each of the first battery module M1 and the second battery module M2. However, the second connecting line portion 220 can extend a relatively long length from the line body 201 to the temperature measurement location inside each battery module (e.g., the first location P1 and the second location P2).

[0058] According to embodiments of this disclosure, the temperature measured from a temperature measurement location can be transmitted via a second connection portion 220, and all temperature information measured from multiple temperature measurement locations can be transmitted together via a single second connection portion 220. (Refer to...) Figure 1 According to embodiments of the present disclosure, the second connecting line portion 220 may include a second-1 connecting line portion 220-1 and a second-2 connecting line portion 220-2 extending from a line body 201 extending from a module gap MG between a first battery module M1 and a second battery module M2 adjacent to each other along the second direction Z2, and extending toward a first position P1 and a second position P2 respectively in directions opposite to the first direction Z1. For example, the second-1 connecting line portion 220-1 may extend toward a first position P1 of the first battery module M1 in the first direction Z1, the first position P1 being offset rearward so that the central portion of the line body 201 extending in the second direction Z2 is opposite to the second-2 connecting line portion 220-2 (i.e., at a position offset rearward so as to the opposite of the front end of the second-2 connecting line portion 220-2 located adjacent to the central position in the second direction Z2). Additionally, the second-2 connecting line portion 220-2 can extend forward from a position adjacent to the circuit portion C of the battery pack as a BMS along the first direction Z1 from the line body 201 extending in the second direction Z2 toward the second position P2 of the second battery module M2.

[0059] According to embodiments of this disclosure, a plurality of first positions P1 and a plurality of second positions P2 can be formed along a first direction Z1 on the second-1 connecting line portion 220-1 and the second-2 connecting line portion 220-2, respectively. The first positions P1 and the second positions P2 can correspond to temperature measurement positions or positions for transmitting measured temperature information on the first battery module M1 and the second battery module M2. Furthermore, the first positions P1 and the second positions P2 can be understood as positions for transmitting temperature information measured from a temperature measurement position that is substantially the same as the temperature measurement position on the first battery module M1 and the second battery module M2. According to embodiments of this disclosure, a plurality of first positions P1 (temperature measurement positions or positions for transmitting temperature information measured from the temperature measurement positions) can be set along the second-1 connecting line portion 220-1 in the first direction Z1, and for this purpose, a plurality of thermistors TH (see [reference needed]) configured to measure the temperature of different battery cells 10 are used. Figure 5 Thermistors can be arranged at multiple first positions P1 defined along the second-1 connecting line portion 220-1. For example, multiple thermistors TH (see [reference]) are configured to measure the temperature of some selected battery cells 10 among a plurality of battery cells 10. Figure 5 The second-1 connecting line portion 220-1, extending along the first direction Z1, can be connected. Multiple thermistors TH are arranged there. Figure 5The first position P1 or multiple thermistors TH at it (see) Figure 5 The second-1 connecting line section 220-1 is connected to each other to transmit power from multiple thermistors TH (see...). Figure 5 The first position P1 of the measured temperature information can be formed at the same or adjacent positions in the second direction Z2. For example, multiple first positions P1 on the second-1 connecting line portion 220-1 can be at the same or adjacent positions on the line body 201 extending along the module gap MG in the second direction Z2.

[0060] Similar to the second-1 connecting line portion 220-1, multiple second positions P2 (temperature measurement positions or positions for transmitting temperature information measured from the temperature measurement positions) can be set along the second-2 connecting line portion 220-2 in the first direction Z1. For this purpose, multiple thermistors TH (see [reference needed]) are configured to measure the temperature of different battery cells 10. Figure 5 Thermistors can be arranged at multiple second positions P2 set along the second-2 connecting line portion 220-2. For example, multiple thermistors TH (see [reference]) are configured to measure the temperature of some selected battery cells 10 among a plurality of battery cells 10. Figure 5 The second-2 connecting line portion 220-2, which extends along the first direction Z1, can be connected, and multiple thermistors TH are arranged therein (see...). Figure 5 The second position P2 or multiple thermistors TH at it (see) Figure 5 The second-2 connecting line portion 220-2 is connected to each other to enable transmission from multiple thermistors TH (see...) Figure 5 The second position P2 for the measured temperature information can be formed at the same or adjacent positions in the second direction Z2. For example, multiple second positions P2 on the second-2 connecting line portion 220-2 can be at the same or adjacent positions on the line body 201 extending along the module gap MG in the second direction Z2.

[0061] Figures 3 to 5 Is Figure 1 and Figure 2 The diagram shows different perspective views of the second connecting line portion 220 and the support plate H1 for supporting the battery cell bracket H in each of the diagrams. The different perspective views depict the battery cell bracket H in... Figure 1 and Figure 2 The assembly 100 is configured at the first position P1 and the second position P2 to control the assembly position and assembly posture of the measuring line portion 230 extending from the second connecting line portion 220.

[0062] Figure 6 yes Figure 5The cross-sectional view taken along line VI-VI of the second connecting line portion 220 and the support plate H1 of the battery cell bracket H shows the structure of the assembly 100 of the battery cell bracket H.

[0063] Reference Figures 3 to 6 According to embodiments of this disclosure, a thermistor TH connected to the second connection line portion 220 to receive temperature information from the second connection line portion 220 can be connected to a measuring line portion 230 extending from the second connection line portion 220. For example, according to embodiments of this disclosure, the measuring line portion 230 can extend from the second connection line portion 220 extending in a first direction Z1 along a second direction Z2, and can be arranged with an inclined orientation or posture offset downwards towards the upper end portion 11 of the battery cell 10 along a third direction Z3 intersecting the first direction Z1 and the second direction Z2. Circuit portion C (see...) Figure 1 It can be connected to the thermistor TH and the measuring line section 230, and can be configured to receive measured temperature information from the thermistor TH.

[0064] According to embodiments of this disclosure, the thermistor TH can be assembled around an assembly 100 in a battery cell support H used to offset or control the assembly positions of a plurality of battery cells 10 and to secure the plurality of battery cells 10 to each other at their controlled assembly positions. For example, according to embodiments of this disclosure, in order to force the thermistor TH and the battery cells 10 to be assembled in a position in which the thermistor TH and the battery cells 10 are close to each other, each of the thermistor TH and the battery cells 10 can have its assembly position offset or controlled by the battery cell support H, which is a component configured to control both the assembly position of the thermistor TH and the assembly position of the battery cells 10. For example, an assembly rib R (see assembly rib R) configured to control the assembly position of the battery cells 10 (see assembly rib R) is used to control the assembly position of the battery cells 10. Figure 2 The assembly 100, configured to control the assembly position of the thermistor TH, and the assembly component 100 can be formed together in the cell holder H. The assembly position can be determined by the assembly rib R (see assembly rib R). Figure 2 ) and each of the assemblies 100 to force or cause, and assembly rib R (see Figure 2 The battery cell 10 and the assembly 100 can be formed in a single component (i.e., the battery cell support H). Accordingly, the relative position between the battery cell 10 and the thermistor TH can be controlled, and the battery cell 10 and the thermistor TH can be assembled in an assembly position in which the thermistor TH and the battery cell 10 are adjacent to each other.

[0065] According to embodiments of the present disclosure, an assembly 100 configured to control the assembly position of a thermistor TH may surround at least a portion of the thermistor TH. For example, the assembly 100 of a battery cell support H may surround opposite sides of the thermistor TH. For example, according to embodiments of the present disclosure, the assembly 100 may include an assembly slit 110 and an assembly guide 120 disposed at opposite positions on opposite sides of the thermistor TH. In one or more embodiments, the assembly 100 may include an assembly slit 110 providing an assembly slit S into which the thermistor TH or a measuring wire portion 230 mounted thereon is inserted, and an assembly guide 120 surrounding the thermistor TH at a position opposite to the assembly slit 110. According to embodiments of the present disclosure, the assembly position of the thermistor TH may be controlled between the assembly slit 110 and the assembly guide 120 surrounding the thermistor TH at opposite positions on opposite sides of the thermistor TH. Surrounded by an assembly slit 110 and an assembly guide 120 that control the assembly position of the thermistor TH on the opposite side of the thermistor TH, the thermistor TH can accurately capture the temperature of the battery cell 10 at a position adjacent to the battery cell 10. Due to the guidance of the assembly slit 110 and the assembly guide 120, the position of the thermistor TH can remain within the range of the battery cell 10.

[0066] According to embodiments of the present disclosure, the assembly 100, including the assembly slit 110 and the assembly guide 120, can realize the bent shape of the measuring line portion 230 on which the thermistor TH is mounted, and also realize the assembly of the thermistor TH. For example, according to embodiments of the present disclosure, the assembly slit 110 can provide an assembly slit S in which the measuring line portion 230 on which the thermistor TH is mounted is inserted, and the insertion of the measuring line portion 230 into the assembly slit S can be performed according to the guidance of the assembly guide 120 on the side opposite to the assembly slit 110. For example, according to embodiments of the present disclosure, the measuring line portion 230 on which the thermistor TH is mounted can be inserted into the assembly slit S provided by the assembly slit 110 along a first direction Z1 at a position facing the assembly guide 120 for assembly onto the battery cell support H. Since the measuring line portion 230 is assembled, the thermistor TH mounted on the measuring line portion 230 can be secured in the correct position adjacent to the battery cell 10.

[0067] According to embodiments of this disclosure, the assembly slit 110 on one side of the thermistor TH and the assembly guide 120 on the other side of the thermistor TH can securely fix the position of the thermistor TH on the opposite side of the thermistor TH, and can also realize the assembly of the thermistor TH or the measuring line portion 230 on which the thermistor TH is mounted. For example, the assembly slit 110 and the assembly guide 120 on the opposite side of the thermistor TH can perform both the function of assembling the thermistor TH or the measuring line portion 230 on which the thermistor TH is mounted and the function of fixing the position of the assembled measuring line portion 230 or the thermistor TH mounted on the measuring line portion 230. In one or more embodiments, the measuring line portion 230 on which the thermistor TH is mounted can be inserted into the assembly slit S of the assembly slit 110 under the guidance of the assembly slit 110 and the assembly guide 120 on both sides of the measuring line portion 230. In one or more embodiments, the measuring line portion 230 can be inserted into the assembly slit S of the assembly slit 110 while facing the assembly guide 120. For example, the measuring line portion 230 can be inserted into the assembly slit S by being aligned in the first direction Z1 while facing the assembly guide 120 extending in the second direction Z2, and thus the measuring line portion 230 can have its orientation offset or controlled to be oriented downward toward the battery cell 10 in a third direction Z3 intersecting the first direction Z1 and the second direction Z2.

[0068] According to embodiments of this disclosure, the assembly slit S can be along the oblique edge E (or downwardly sloping edge) of the assembly slit member 110 (see... Figure 6 The thermistor TH is bent toward the battery cell 10 in a third direction Z3, which intersects the first direction Z1 and the second direction Z2, and the measuring line portion 230 is mounted on or located thereon. For example, the measuring line portion 230 can be bent downward along the oblique edge E of the assembly slit S and can form contact with the oblique edge E of the assembly slit S according to the elastic restoring force, and therefore can be bent downward along the oblique edge E of the assembly slit S in the third direction Z3, which intersects the first direction Z1 and the second direction Z2.

[0069] In one or more embodiments of this disclosure, the assembly slit S may be along the oblique edge E of the assembly slit member 110 (see... Figure 6The thermistor TH is bent toward the battery cell 10 in a third direction Z3, which intersects the first direction Z1 and the second direction Z2, towards or on the measuring line portion 230. For example, the measuring line portion 230 may be bent downward along the oblique edge E of the assembly slit S and may contact the oblique edge E of the assembly slit S according to the elastic restoring force, and therefore may be bent downward along the oblique edge E of the assembly slit member 110 in a third direction Z3, which intersects the first direction Z1 and the second direction Z2. For example, according to an embodiment of the present disclosure, the oblique edge E of the assembly slit member 110 may face the support plate H1 on which the busbar B and the second connecting line portion 220 are supported, and the oblique edge E of the assembly slit member 110 may be inclined downward in a third direction Z3, which intersects the first direction Z1 and the second direction Z2. For example, the oblique edge E of the assembly slit 110 may have a gradually increasing distance from the support plate H1 in the height direction of the assembly slit 110, and the measuring line portion 230 guided along the oblique edge E of the assembly slit 110 may have its assembly posture offset or controlled to tilt downward.

[0070] According to embodiments of the present disclosure, the assembly slit 110 and the assembly guide 120 may be formed on both sides (e.g., opposite sides or opposite ends) of the thermistor TH or the measurement line portion 230 on which the thermistor TH is mounted, and the thermistor TH or the measurement line portion 230 on which the thermistor TH is mounted may be fixed in position by being inserted between the assembly slit 110 and the assembly guide 120.

[0071] According to embodiments of the present disclosure, the assembly slit 110 can form an assembly slit S between the assembly slit 110 and the support plate H1 of the battery cell holder H (where the busbar B or a second connecting line portion 220 extending parallel to the busbar B in the first direction Z1 is mounted on the support plate H1). For example, according to embodiments of the present disclosure, the assembly slit S can be formed by the assembly slit 110, and the assembly slit S can be formed by the assembly slit 110 to facilitate the assembly and posture control (or offset) of the measuring line portion 230 extending from the second connecting line portion 220. For example, the assembly slit S can be formed between the support plate H1 of the battery cell holder H that supports the second connecting line portion 220 and the assembly slit 110 configured to offset or control the assembly position and assembly posture of the measuring line portion 230 extending from the second connecting line portion 220 on the support plate H1.

[0072] According to embodiments of the present disclosure, the battery cell support H may include a support plate H1 for supporting a busbar B (e.g., the main body portion B1 of the busbar B) and a second connecting line portion 220 on the battery cell support H. The support plate H1 of the battery cell support H may extend in a first direction Z1 on which the battery cell 10 is arranged and may support the busbar B (the main body portion B1 of the busbar B) and the second connecting line portion 220 extending in the first direction Z1. According to embodiments of the present disclosure, the battery cell support H may include an assembly 100 extending from the support plate H1 extending in the first direction Z1, and an assembly slit 110 in the assembly 100 may form an assembly slit S between the support plate H1 and the assembly slit 110. Furthermore, a measuring line portion 230 extending from the second connecting line portion 220 extending along the first direction Z1 may have its assembly position and assembly posture offset or controlled by the assembly 100 extending from the support plate H1. For example, according to an embodiment of the present disclosure, the measurement line portion 230 extending from the second connection line portion 220 or the thermistor TH mounted on the measurement line portion 230 can have its assembly position and its assembly posture offset or controlled by an assembly 100 extending from the support plate H1 supporting the second connection line portion 220 of the battery cell bracket H.

[0073] According to embodiments of the present disclosure, the position of the thermistor TH or the measuring line portion 230 on which the thermistor TH is mounted can be controlled (or offset) by the assembly 100 of the battery cell support H to be not deviated from the battery cell 10 (or substantially not deviated from the battery cell 10). While the assembly position of the thermistor TH or the measuring line portion 230 on which the thermistor TH is mounted is controlled, the assembly posture of the thermistor TH or the measuring line portion 230 can be controlled (or offset) to be oriented downward toward the battery cell 10 in a third direction Z3 intersecting the first direction Z1 and the second direction Z2. According to embodiments of the present disclosure, the assembly slit 110 and the assembly guide 120 of the assembly 100 can be located on the opposite side of the thermistor TH or on the opposite side of the measuring line portion 230 on which the thermistor TH is mounted, and can, for example, be spaced apart from each other in a first direction Z1 corresponding to the longitudinal direction of the second connecting line portion 220 from which the measuring line portion 230 extends. For example, the second connecting line portion 220 may extend in the first direction Z1, and the assembly slit 110 and assembly guide 120 for controlling the position (offset of the position) and orientation (offset of the orientation) of the measuring line portion 230 extending from the second connecting line portion 220 or the thermistor TH mounted on the measuring line portion 230 may be spaced apart from each other in the first direction Z1. For example, the assembly slit 110 and assembly guide 120 may form an assembly space between each other in the first direction Z1, and the measuring line portion 230 or the thermistor TH mounted on the measuring line portion 230 may be accommodated in the assembly space.

[0074] According to embodiments of this disclosure, the assembly position of the thermistor TH or the measurement line portion 230 on which the thermistor TH is mounted is controlled (or offset) to not deviate (or substantially not deviate) from the battery cell 10 on the plane formed by the first direction Z1 and the second direction Z2, and the assembly posture of the thermistor TH or the measurement line portion 230 on which the thermistor TH is mounted is controlled (or offset) to be oriented downward toward the battery cell 10 on a third direction Z3 intersecting the first direction Z1 and the second direction Z2, and the assembly 100 may surround the thermistor TH or the measurement line portion 230 on which the thermistor TH is mounted. In one or more embodiments, the assembly 100 may surround the thermistor TH or the measurement line portion 230 on which the thermistor TH is mounted in an open-loop shape. For example, a first opening g1 configured to accommodate a measuring line portion 230 extending from the second connecting line portion 220 and a second opening g2 on the opposite side of the first opening g1 can be provided between the assembly slit 110 and the assembly guide 120 of the assembly 100. As described above, according to embodiments of the present disclosure, between the assembly slit 110 and the assembly guide 120 of the assembly 100, a first opening g1 for accommodating the measuring line portion 230 extending from the second connecting line portion 220 and a second opening g2 on the opposite side of the first opening g1 can be provided, and thus the assembly state of the thermistor TH or the measuring line portion 230 on which the thermistor TH is mounted between the assembly slit 110 and the assembly guide 120 forming the assembly slit S can be visually and easily identified. Furthermore, in the molding process where molten resin for forming the battery cell support H is injected into a mold and cooling and demolding are performed to form the battery cell support H, the torsional deformation of the assembly slit 110 and assembly guide 120 of the assembly 100 due to the cold shrinkage of the battery cell support H can be suppressed or mitigated. For example, the transmission of the retraction force exerted on the assembly slit 110 and assembly guide 120 towards each other due to the cold shrinkage can be blocked or at least mitigated by the first opening g1 and the second opening g2 in the second direction Z2. In addition, the torsional deformation that occurs in the assembly slit 110 and assembly guide 120 due to shrinkage stress, which may be applied to each of the assembly slit 110 and assembly guide 120 due to cold shrinkage or volume shrinkage caused by cooling, can be prevented or at least mitigated by the first opening g1 and the second opening g2.

[0075] As described above, a battery pack according to embodiments of the present disclosure may include a plurality of battery cells 10, a thermistor TH configured to measure temperature information of at least one of the plurality of battery cells 10, a battery cell support H configured to control the assembly position of the plurality of battery cells 10 and control or offset the assembly position and assembly posture of the thermistor TH, and a measuring line portion 230 connected to the thermistor TH to receive the measured temperature information from the thermistor TH. The battery cell support H includes an assembly member 100 for controlling or offsetting both the assembly position and assembly posture of the thermistor TH in a position toward the battery cell 10 without deviating (or substantially not deviating) from the battery cell 10.

[0076] According to embodiments of this disclosure, assembly 100 can control or offset the assembly position and orientation of the thermistor TH or the measurement line portion 230 on which the thermistor TH is mounted. In one or more embodiments, assembly 100 can force the orientation of the measurement line portion 230 to be oriented downward toward the upper end portion 11 of the battery cell 10 (i.e., the assembly position of the measurement line portion 230 on which the thermistor TH is mounted is oriented downward toward the battery cell 10).

[0077] For example, according to an embodiment of the present disclosure, the assembly 100 can control or offset the assembly position and assembly posture of the thermistor TH mounted thereon measuring line portion 230, such that the thermistor TH mounted thereon measuring line portion 230 can contact the upper end portion 11 of the battery cell 10.

[0078] According to embodiments of this disclosure, the assembly 100 may include an assembly slit 110 and an assembly guide 120 located on the opposite side of the measuring line portion 230 on which the thermistor TH is mounted. For example, the assembly slit 110 and the assembly guide 120 may be spaced apart from each other in a first direction Z1 corresponding to the longitudinal direction of the second connecting line portion 220 from which the measuring line portion 230 extends. The assembly position and assembly posture of the measuring line portion 230 are controlled or offset by the assembly slit S, which is formed by the assembly slit 110.

[0079] According to embodiments of this disclosure, assembling the slit 110 may include a downwardly sloping edge E for forcing the measuring wire portion 230 on which the thermistor TH is mounted to be bent downwards (see...). Figure 6For example, the measuring line portion 230 on which the thermistor TH is mounted can be bent by the assembly slit 110, and the assembly slit 110 can form an assembly slit S to allow the measuring line portion 230 to pass between the assembly slit 110 and the support plate H1 of the battery cell support H for supporting the second connecting line portion 220 of the circuit portion C, which is connected to the battery pack and serves as a BMS. In one or more embodiments, the measuring line portion 230 on which the thermistor TH is mounted can be bent and accommodated in the assembly slit S, and the assembly slit S can be located between the support plate H1 of the battery cell support H for supporting the second connecting line portion 220 of the circuit portion C, which is connected to the battery pack and serves as a BMS, and the downwardly sloping edge E of the assembly slit 110 in the assembly member 100 for controlling the assembly position and assembly posture of the measuring line portion 230.

[0080] According to embodiments of this disclosure, the thermistor TH, on which the measuring wire portion 230 is mounted, can be inserted into and assembled into the assembly 100 and can be bent, and the measuring wire portion 230 can be bent downward relative to the second connection wire portion 220 extending therefrom and connecting to the circuit portion C of the battery pack as a BMS. For example, according to embodiments of this disclosure, this is achieved by bending upward relative to the second connection wire portion 220 (e.g., a bulge or protrusion) (see...). Figure 3 The thermistor TH, on which the measuring line portion 230 is mounted, can provide a remaining margin length after making contact with the upper end portion 11 of the battery cell 10. For example, according to embodiments of this disclosure, the assembly 100 for controlling or offsetting the assembly position and orientation of the thermistor TH or the measuring line portion 230 on which the thermistor TH is mounted, can control or offset the assembly position and orientation of the thermistor TH or the measuring line portion 230 on which the thermistor TH is mounted, such that the measuring line portion 230 on which the thermistor TH is mounted contacts the upper end portion 11 of the battery cell 10 without deviating (or substantially without deviating) from the battery cell 10. The measuring line portion 230 on which the thermistor TH is mounted can be bent by being controlled to be oriented downward toward the upper end portion 11 of the battery cell 10, and the bent portion of the measuring line portion 230 (e.g., the upward bend relative to the second connecting line portion 220 extending therefrom of the measuring line portion 230) (see Figure 3 This can provide sufficient margin length for the measuring line portion 230 to contact the upper portion 11 of the battery cell 10.

[0081] According to embodiments of the present disclosure, a plurality of battery cells 10 may be arranged in a plurality of columns arranged along a second direction Z2 intersecting a first direction Z1, wherein each of the plurality of columns includes a plurality of battery cells 10 in the first direction Z1.

[0082] Assembly 100 may surround the thermistor TH or the measuring line portion 230 on which the thermistor TH is mounted in an open-loop shape that opens in the plane formed by the first direction Z1 and the second direction Z2. For example, according to an embodiment of the present disclosure, assembly 100 may surround the thermistor TH or the measuring line portion 230 on which the thermistor TH is mounted in an open-loop shape that opens through a first opening g1 and a second opening g2 at the opposite side of the thermistor TH or at the opposite side of the measuring line portion 230 on which the thermistor TH is mounted.

[0083] For example, according to an embodiment of this disclosure, the first opening g1 can be configured to allow the thermistor TH to be mounted thereon on the measuring line portion 230 from the circuit portion C, which is connected to the battery pack as a BMS (see...). Figure 1 The second connecting line portion 220 extends, and the second opening g2 allows for the distance between the assembly slit 110 and the assembly guide 120 at the opposite side of the first opening g1.

[0084] According to embodiments of the present disclosure, the assembly slit 110 and the assembly guide 120 may be spaced apart from each other by a first opening g1 and a second opening g2. For example, according to embodiments of the present disclosure, the assembly slit 110 and the assembly guide 120 of the assembly 100 may be spaced apart from each other in a first direction Z1 corresponding to the longitudinal direction of the measuring line portion 230 extending from the second connecting line portion 220 whose assembly position and assembly posture are controlled by the assembly 100. The assembly slit 110 and the assembly guide 120 may be spaced apart from each other by a first opening g1 and a second opening g2 on opposite sides of a second direction Z2 intersecting the first direction Z1. As described above, the assembly slit 110 and the assembly guide 120 of the assembly 100 may surround the thermistor TH or the measuring line portion 230 on which the thermistor TH is mounted in an open-loop shape on the plane formed by the first direction Z1 and the second direction Z2, open by the first opening g1 and the second opening g2 on opposite sides of the second direction Z2. According to embodiments of the present disclosure, a first direction Z1 may represent the direction in which a plurality of battery cells 10 are arranged in a column thereon, and a second direction Z2 may represent the direction in which a column including a plurality of battery cells 10 is arranged thereon.

[0085] According to embodiments of this disclosure, the assembly slit 110 and the assembly guide 120 may respectively include first segments 110a and 120a extending in a second direction Z2 intersecting the first direction Z1 (see...). Figure 5The first direction Z1 corresponds to the longitudinal direction of the second connecting line portion 220 extending from the thermistor TH or the measuring line portion 230 on which the thermistor TH is mounted. The assembly guide 120 may consist only of a first segment 120a extending in the second direction Z2, and in addition to the first segment 110a extending in the second direction Z2, the assembly slit 110 may further include a second segment 110b extending in the first direction Z1 (see...). Figure 5 It may further include a third segment 110c extending between the first segment 110a and the second segment 110b in an oblique direction relative to the first direction Z1 and the second direction Z2 (see...). Figure 5 As described above, according to embodiments of the present disclosure, the assembly guide 120 in the assembly 100 may consist only of a first segment 120a extending in the second direction Z2, but in addition to the first segment 110a extending in the second direction Z2, the assembly slit 110 may include a second segment 110b extending in the first direction Z1, and may also include a third segment 110c extending in an oblique direction relative to the first direction Z1 and the second direction Z2. It is understood that each of the assembly guide 120 and the assembly slit 110 may surround different sides of the thermistor TH.

[0086] According to embodiments of this disclosure, the assembly slit 110 and assembly guide 120 can be located on both sides (opposite sides or opposite ends) of the thermistor TH or the measurement line portion 230 on which the thermistor TH is mounted, and can participate in the assembly and positioning of the thermistor TH or the measurement line portion 230 on which the thermistor TH is mounted.

[0087] According to embodiments of the present disclosure, the assembly slit S can be located between the support plate H1 of the battery cell holder H (where the busbar B or a second connecting line portion 220 extending parallel to the busbar B in a first direction Z1 is mounted on the support plate H1) and the assembly slit member 110. For example, the assembly slit S according to embodiments of the present disclosure can be formed by the assembly slit member 110, and the assembly slit S can be formed by the assembly slit member 110 to assemble and control the posture of the measuring line portion 230 extending from the second connecting line portion 220. For example, the assembly slit S can be located between the support plate H1 of the battery cell holder H that supports the second connecting line portion 220 and the assembly slit member 110 configured to offset or control the assembly position and assembly posture of the measuring line portion 230 extending from the second connecting line portion 220 on the support plate H1. For example, according to embodiments of the present disclosure, the battery cell support H may include a support plate H1 for supporting a busbar B and a second connecting line portion 220 disposed on the battery cell support H, and the support plate H1 of the battery cell support H may extend in a first direction Z1 on which the battery cell 10 is disposed and may support the busbar B and the second connecting line portion 220 extending in the first direction Z1. According to embodiments of the present disclosure, the battery cell support H may include an assembly 100 extending from the support plate H1 extending in the first direction Z1, and an assembly slit 110 in the assembly 100 may form an assembly slit S between the support plate H1 and the assembly slit 110. In addition, a measuring line portion 230 extending from the second connecting line portion 220 extending in the first direction Z1 may be assembled by the assembly 100 extending from the support plate H1 and its posture may be controlled. According to embodiments of this disclosure, the measurement line portion 230 extending from the second connection line portion 220 or the thermistor TH mounted on the measurement line portion 230 can be assembled and its posture controlled by an assembly 100 extending from the support plate H1 supporting the second connection line portion 220 of the battery cell bracket H.

[0088] According to embodiments of the present disclosure, the position of the thermistor TH or the measuring line portion 230 on which the thermistor TH is mounted can be controlled (offset) by the assembly 100 of the battery cell support H to be not deviated from (or substantially not deviated from) the battery cell 10, and the orientation of the thermistor TH or the measuring line portion 230 can be controlled (offset) by the assembly 100 of the battery cell support H to be oriented downward toward the battery cell 10 in a third direction Z3 intersecting the first direction Z1 and the second direction Z2. According to embodiments of the present disclosure, the assembly slit 110 and the assembly guide 120 of the assembly 100 can be located on the opposite side of the thermistor TH or on the opposite side of the measuring line portion 230 on which the thermistor TH is mounted, and can be spaced apart from each other, for example, in a first direction Z1 corresponding to the longitudinal direction of the second connecting line portion 210 from which the measuring line portion 230 extends. For example, the second connecting line portion 220 may extend in the first direction Z1, and the assembly slit 110 and assembly guide 120, configured to control the position and orientation (offset of the position and orientation) of the measuring line portion 230 extending from the second connecting line portion 220 or the thermistor TH mounted on the measuring line portion 230, may be spaced apart from each other in the first direction Z1. For example, the assembly slit 110 and assembly guide 120 may form an assembly space between each other in the first direction Z1, and the measuring line portion 230 or the thermistor TH mounted on the measuring line portion 230 may be accommodated in the assembly space.

[0089] According to embodiments of this disclosure, an assembly 100 configured to control or offset the position of a thermistor TH or a measuring line portion 230 mounted thereon so as not to deviate (or substantially not deviate) from the battery cell 10 on a plane formed by a first direction Z1 and a second direction Z2, and configured to control or offset the orientation of the thermistor TH or the measuring line portion 230 so as to be oriented downward toward the battery cell 10 on a third direction Z3 intersecting the first direction Z1 and the second direction Z2, may surround the thermistor TH or the measuring line portion 230 mounted thereon in an open-loop shape. For example, a first opening g1 of the measuring line portion 230 extending from a second connecting line portion 220 and a second opening g2 on the opposite side of the first opening g1 may be formed between the assembly slit 110 and the assembly guide 120 of the assembly 100. As described above, according to embodiments of the present disclosure, a first opening g1 for accommodating a measuring line portion 230 extending from the second connecting line portion 220 can be formed between the assembly slit 110 and the assembly guide 120 of the assembly 100, and a second opening g2 can be formed on the opposite side of the first opening g1. In one or more embodiments, the second opening g2 may be located on the opposite side of the first opening g1 in a second direction Z2 intersecting a first direction Z1 that is spaced apart from the assembly slit 110 and the assembly guide 120 thereon. Therefore, the assembly state of the thermistor TH or the measuring line portion 230 on which the thermistor TH is mounted, which is accommodated between the assembly slit 110 and the assembly guide 120 forming the assembly slit S, can be visually and easily identified. Furthermore, in the molding process where molten resin for forming the battery cell support H is injected into a mold and cooling and demolding are performed to form the battery cell support H, the torsional deformation of the assembly slit 110 and assembly guide 120 of the assembly 100 due to the cold shrinkage of the battery cell support H can be suppressed or mitigated. For example, the transmission of retraction forces exerted on each other from the assembly slit 110 and assembly guide 120 due to cold shrinkage can be blocked or at least mitigated by the first opening g1 and the second opening g2 in the second direction Z2. In addition, the torsional deformation that occurs in the assembly slit 110 and assembly guide 120 due to shrinkage stress, which may be applied to each of the assembly slit 110 and assembly guide 120 due to cold shrinkage or volume shrinkage caused by cooling, can be prevented or at least mitigated by the first opening g1 and the second opening g2.

[0090] According to embodiments of this disclosure, the assembly slit 110 and the assembly guide 120 may be spaced apart from each other in the first direction Z1 by a second connecting line portion 220 extending along the first direction Z1. Additionally, the assembly slit 110 and the assembly guide 120 may each include first segments 110a and 120a extending parallel (or substantially parallel) to each other in the second direction Z2, and the position of the thermistor TH or the measuring line portion 230 on which the thermistor TH is mounted may be controlled between the first segments 110a and 120a in the first direction Z1. Furthermore, in addition to the first segment 110a extending in the second direction Z2, the assembly slit 110 may further include a second segment 110b extending in the first direction Z1, and the position of the thermistor TH or the measuring line portion 230 on which the thermistor TH is mounted may be controlled in the second direction Z2. The assembly slit 110 may further include a third segment 110c between a first segment 110a and a second segment 110b, respectively, along a diagonal direction relative to the first direction Z1 and the second direction Z2. The third segment 110c may interrupt the flow of molten resin in the process of forming the battery cell support H along an edge that can be formed by direct contact between the first segment 110a and the second segment 110b, respectively, along the second direction Z2 and the first direction Z1, or may reduce the torsional deformation in the first segment 110a and the second segment 110b, respectively, along the second direction Z2 and the first direction Z1, due to thermal shrinkage or volume shrinkage, when the molten resin is cooled at the edge that can be formed by direct contact between the first segment 110a and the second segment 110b, respectively, along the second direction Z2 and the first direction Z1. According to embodiments of the present disclosure, the assembly guide 120 in the assembly 100 may extend in a second direction Z2 intersecting a first direction Z1 on which the battery cell 10 is arranged, and the assembly slit 110 in the assembly 100 may include a first segment 110a and a second segment 110b respectively along the second direction Z2 intersecting the first direction Z1 and the first direction Z1 on which the battery cell 10 is arranged, and the assembly slit 110 may further include a third segment 110c extending in an oblique direction relative to the first direction Z1 and the second direction Z2. For example, the assembly guide 120 may surround one side of the thermistor TH or the measurement line portion 230 mounted thereon, and the assembly slit 110 may surround two or more different sides of the thermistor TH or the measurement line portion 230 mounted thereon.

[0091] According to embodiments of the present disclosure, the thermistor TH or the measuring line portion 230 on which the thermistor TH is mounted can contact the upper end portion 11 of the battery cell 10 while being inserted into and assembled into the assembly 100. For example, the thermistor TH or the measuring line portion 230 on which the thermistor TH is mounted can have its assembly position controlled or offset to be non-deviated (or substantially non-deviated) from the battery cell 10 by an assembly slit 110 and an assembly guide 120 on the opposite side of the assembly 100 in the first direction Z1, and can contact the upper end portion 11 of the battery cell 10 while being non-deviated (or substantially non-deviated) from the battery cell 10. For example, according to embodiments of the present disclosure, the measuring line portion 230 on which the thermistor TH is mounted can be pressurized over the upper end portion 11 of the battery cell 10, and a portion of the measuring line portion 230 pressurized over the upper end portion 11 of the battery cell 10 can have a curved shape or a bulge with a margin of length (see Figure 3 For example, according to embodiments of this disclosure, the thermistor TH, on which the measuring line portion 230 is mounted, may be in direct contact with the battery cell 10, and the thermistor TH may not be in direct contact with the battery cell 10, in order to prevent (or at least mitigate) the current flowing in the thermistor TH. Additionally, in order to allow the measuring line portion 230 to contact the upper end portion 11 of the battery cell 10 with sufficient margin length, the margin length provided in the measuring line portion 230 may be formed into a curved shape (e.g., a bulge or protrusion) and may have a stretchable or deformable length (see...). Figure 3 ).

[0092] According to embodiments of this disclosure, the thermistor TH and the battery cell 10 may not be in direct contact with each other. However, a thermal interface material (TIM) may be disposed between the thermistor TH and the battery cell 10, and thus a thermal contact may be formed between the thermistor TH and the battery cell 10. For example, the TIM may be coated onto the thermistor TH or the measurement line portion 230 on which the thermistor TH is mounted, and a heat transfer path may be formed between the battery cell 10 and the thermistor TH. According to various embodiments, the TIM may be disposed between the battery cell 10 and the measurement line portion 230 on the upper end portion 11 of the battery cell 10, and may be configured to transmit temperature information of the battery cell 10 to the measurement line portion 230. The temperature information of the battery cell 10 may be transmitted through the measurement line portion 230 toward the thermistor TH mounted on the measurement line portion 230.

[0093] According to embodiments of this disclosure, the assembly 100 of the battery cell support H can be configured to control (offset) the position and orientation of the thermistor TH used to measure temperature information of the battery cell 10 or the thermistor TH mounted thereon on the measuring line portion 230. According to embodiments of this disclosure, because the orientation of the measuring line portion 230 can be forcibly controlled or offset by the assembly slit member 110 included in the assembly 100 and forming the assembly slit S to be oriented downward toward the battery cell 10 in a third direction Z3 intersecting the first direction Z1 and the second direction Z2, a prior bending process or operation of the thermistor TH or the measuring line portion 230 mounted thereon is unnecessary. For example, according to an embodiment of the present disclosure, while the measuring line portion 230 can be assembled along the oblique edge E of the assembly slit 110 in the assembly 100 by being inserted into the assembly 100, the orientation of the measuring line portion 230 can be controlled or offset toward the oblique direction on a third direction Z3 that intersects the first direction Z1 and the second direction Z2, the oblique direction being oriented toward the battery cell 10.

[0094] Figure 7 This is a perspective view of a battery pack according to a comparative embodiment, illustrating the structure of the assembly 100' on which the measuring line portion 230' of the thermistor TH' is mounted.

[0095] like Figure 7As illustrated in the figure, according to the comparative embodiment, assembly 100' may be formed on a first position P1' of the battery cell support H' to provide assembly space for controlling the position of the thermistor TH'. Even though assembly 100' according to the comparative embodiment can control the position of the thermistor TH', assembly 100' may not necessarily control or offset the orientation of the thermistor TH' mounted thereon as the orientation of the measuring line portion 230' to be oriented downward toward the battery cell 10' in a third direction Z3 intersecting the first direction Z1 and the second direction Z2. Therefore, according to the comparative embodiment, a prior bending process may have to be additionally performed before the assembly of the thermistor TH' or the measuring line portion 230', and the overall process time may be delayed due to the time required to perform the additional prior bending process, and additional equipment for the bending process may be required. Furthermore, according to the comparative embodiment, even if the previous bending process is performed before the assembly of the thermistor TH' or the measuring line portion 230' on which the thermistor TH' is mounted, no structure is provided for controlling or offsetting the orientation of the thermistor TH' or the measuring line portion 230' on which the thermistor TH' is mounted, and therefore, after the previous bending process, a precise bending structure may not be formed due to the springback (i.e., elastic restoring force) of the measuring line portion 230'. For example, it may be difficult to form an orientation of the measuring line portion 230' with a precise bending structure that can be forced to contact the upper end portion 11' of the battery cell 10'. For example, according to the comparative embodiment, in order to maintain the bent shape of the measuring line portion 230' formed by the previous bending process, in addition to bending at other additional locations, a generally complex bending operation may be required relative to the measuring line portion 230' or the second connecting line portion 220' to which the measuring line portion 230' is connected.

[0096] According to embodiments of this disclosure, via the battery cell support H (see...) Figure 2 The thermistor TH (see) is configured to control or deflect the thermistor. Figure 5 Assembly of components 100 with position and orientation of parts (see) Figure 3 ), battery cell bracket H (see Figure 2 Assembly 100 (see) Figure 3 ) is configured to use the thermistor TH (see Figure 5 ) or thermistor TH (see Figure 5 The measuring line section 230 installed on it (see...) Figure 3 The position control or offset of the battery cell 10 (see) is not deviated (or substantially not deviated) from the target position. Figure 2 The position of the thermistor TH (see Figure 5 ) or thermistor TH (see Figure 5 The measuring line section 230 installed on it (see...) Figure 3 The attitude control or offset is directed toward the battery cell 10 (see Figure 2 Orientation, thermistor TH (see) Figure 5 The assembly position and orientation of the thermistor TH' can be precisely controlled. For example, unlike the comparative embodiment (in which the assembly position of the thermistor TH' or the measuring line portion 230' on which the thermistor TH' is mounted can be controlled on one side), the thermistor TH (see Figure 5 ) or thermistor TH (see Figure 5 The measuring line section 230 installed on it (see...) Figure 3 The assembly position and assembly posture of the battery cell can be determined by the battery cell support H (see...). Figure 2 Assembly 100 (see) Figure 3 In the thermistor TH (see...) Figure 5 ) or thermistor TH (see Figure 5 The measuring line section 230 installed on it (see...) Figure 3 The two positions of the battery cell 10 (see Comparative Embodiment) can be controlled or offset. Therefore, compared to the comparative embodiment, increased reliability can be achieved with respect to the battery cell 10 (see Comparative Embodiment). Figure 2 Temperature measurement.

[0097] According to this disclosure, a battery pack can be provided in which an assembly configured to control the assembly position and orientation of a thermistor or a measuring line portion on which the thermistor is mounted for measuring the temperature of a battery cell can be formed on a battery cell support for controlling the assembly position of the battery cell. This allows for precise control of the relative position of the battery cell and the thermistor used to measure the temperature of the battery cell. Furthermore, by controlling the assembly position and orientation of the thermistor or the measuring line portion on which the thermistor is mounted to be oriented downward toward the upper portion of the battery cell at a position on the upper portion of the battery cell so as not to deviate (or substantially not to deviate) from the battery cell, the reliability of temperature measurement relative to the battery cell can be improved compared to battery packs of the related art.

[0098] This disclosure also relates to various embodiments of vehicles (e.g., electric or hybrid vehicles) that include at least one battery pack as a power source. The battery pack used in the vehicle may be the same as (or similar to) any embodiment of the battery pack described herein.

[0099] It should be understood that the embodiments described herein are to be considered in a descriptive sense only and not for limiting purposes. The description of features or aspects within each embodiment should generally be considered 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 skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of this disclosure as defined by the claims.

Claims

1. A battery pack, comprising: Multiple battery cells; A thermistor is configured to measure temperature information of at least one of the plurality of battery cells; A battery cell support is configured to control the assembly position of the plurality of battery cells. The battery cell support includes an assembly component configured to ensure that the assembly position of the thermistor does not deviate from the plurality of battery cells and to orient the assembly posture of the thermistor toward the plurality of battery cells. as well as A circuit section is connected to the thermistor, and the circuit section is configured to receive the measured temperature information from the thermistor.

2. The battery pack as claimed in claim 1, wherein, The assembly is further configured to offset the assembly position and orientation of the measuring line portion on which the thermistor is mounted.

3. The battery pack as described in claim 2, wherein, The assembly is configured to force the assembly posture of each of the thermistor and the measuring line portion to be oriented downward toward the plurality of battery cells, wherein the assembly position of the measuring line portion on which the thermistor is mounted is on the upper portion of the plurality of battery cells.

4. The battery pack as claimed in claim 3, wherein, The assembly is configured such that the assembly position and assembly posture of the measuring line portion on which the thermistor is mounted are controlled such that the measuring line portion on which the thermistor is mounted contacts the upper portion of the plurality of battery cells.

5. The battery pack as claimed in claim 2, wherein, The assembly includes an assembly slit and an assembly guide located at opposite positions on both sides of the measuring line portion on which the thermistor is mounted.

6. The battery pack as claimed in claim 5, wherein, The assembly slit includes a downwardly sloping edge of the measuring line portion configured to force the thermistor to be mounted thereon.

7. The battery pack as claimed in claim 6, wherein, The assembly slit includes an assembly slit configured to allow the measurement line portion on which the thermistor is mounted to pass through, the measurement line portion extending from a support plate supported on the battery cell bracket and connected to a second connection line portion of the circuit portion.

8. The battery pack as claimed in claim 7, wherein, The assembly slit is located between the support plate of the battery cell holder and the downwardly inclined edge of the assembly slit member in the assembly, which is configured to control the assembly position and the assembly posture of the measuring line portion.

9. The battery pack as claimed in claim 2, wherein, The measuring wire portion on which the thermistor is mounted is bent and inserted into and assembled into the assembly. The measuring line portion bends from an upper position to a lower position relative to the second connecting line portion, the measuring line portion extends from the second connecting line portion, and the second connecting line portion is connected to the circuit portion.

10. The battery pack of claim 9, wherein, The measuring line portion on which the thermistor is mounted provides a remaining length margin after making contact with the upper portion of the battery cell by means of a portion bent relative to the second connecting line portion toward the upper position.

11. The battery pack as claimed in claim 2, wherein, The plurality of battery cells are arranged in multiple columns, each comprising multiple battery cells in a first direction, and the multiple columns are arranged in a second direction intersecting the first direction. The assembly surrounds the thermistor or the measuring line portion on which the thermistor is mounted in an open-loop shape that is open in a plane formed by the first direction and the second direction.

12. The battery pack of claim 11, wherein, The open-loop shape is opened through a first opening and a second opening on the opposite side of the thermistor or the measuring line portion on which the thermistor is mounted.

13. The battery pack of claim 12, wherein, The first opening is configured to allow the measuring line portion on which the thermistor is mounted to extend from the second connecting line portion connected to the circuit portion, and The second opening, located on the opposite side of the first opening, is configured to allow for the distance between the assembly slit and the assembly guide of the assembly.

14. The battery pack of claim 13, wherein, The assembly slit and the assembly guide are spaced apart from each other by the first opening and the second opening.

15. The battery pack of claim 13, wherein, The assembly slit and the assembly guide surround different sides of the thermistor or the measuring line portion on which the thermistor is mounted.

16. The battery pack of claim 13, wherein, The thermistor is mounted on the measuring line portion extending from the second connecting line portion in a direction intersecting the first direction, the second connecting line portion being connected to the circuit portion and extending in the first direction, and The assembly slit and the assembly guide are spaced apart from each other in the first direction.

17. The battery pack of claim 16, wherein, The assembly slit and the assembly guide include a first segment extending in the second direction intersecting the first direction, and The assembly slit further includes a second segment extending in the first direction and a third segment between the first segment and the second segment, the third segment extending in a diagonal direction with respect to the first direction and the second direction.

18. The battery pack of claim 1, wherein, The plurality of battery cells are arranged in multiple columns, each comprising a plurality of battery cells in a first direction, and the plurality of columns are arranged in a second direction intersecting the first direction.

19. The battery pack of claim 18, wherein, The assembly surrounds the thermistor or the measuring line portion on which the thermistor is mounted in an open-loop shape, open in a plane formed by the first and second directions through a first opening and a second opening on opposite sides of the second direction.

20. The battery pack of claim 19, wherein, The assembly slit and assembly guide of the assembly are spaced apart from each other in the first direction and are spaced apart from each other by the first opening and the second opening on the opposite side in the second direction that intersects the first direction.

21. An electric vehicle comprising a battery pack as a power source as claimed in any one of claims 1 to 20.

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