Battery cell temperature measuring device and battery cell temperature measuring method using same

Abstract

The present invention relates to an apparatus for measuring the temperature of a pouch-type battery cell and a method for measuring the temperature of a battery cell using the same, and more particularly, to an apparatus for measuring the temperature of a pouch-type battery cell, the present invention relates to an apparatus for measuring the temperature of a battery cell and a method for measuring the temperature of a battery cell using the same, the apparatus being characterized by comprising: a connection part comprising: a first plate in close contact with one surface of the battery cell; the second plate is in close contact with the other surface of the battery cell, and one or more through holes are formed in the second plate; the first connecting part can be detachably connected to the through hole; and a temperature measuring portion that measures a temperature of the battery cell through the connecting portion and the through hole, in which a fastening portion is provided on an outer peripheral surface of the through hole, the fastening portion being coupled to the connecting portion.

Description

Technical Field

[0001] This application claims priority to Korean Patent Application No. 2024-0109286, filed on August 14, 2024, the entire disclosure of which is incorporated herein by reference.

[0002] This invention relates to a battery cell temperature measuring device and a method for measuring battery cell temperature using the battery cell temperature measuring device. More specifically, this invention relates to a battery cell temperature measuring device and a method for measuring battery cell temperature using the battery cell temperature measuring device, wherein the battery cell temperature measuring device is capable of measuring the temperature change of a battery cell under conditions where the ambient temperature is isolated and the battery cell is stably fixed. Background Technology

[0003] With the development of alternative energy sources in recent years due to air pollution caused by the use of fossil fuels and energy depletion, the demand for secondary batteries that can store the generated electrical energy has increased.

[0004] Due to the increasing use and complexity of mobile devices, as well as the development of electric vehicles, the required capacity of secondary batteries, which power various electronic devices indispensable in modern society, has increased. To meet user needs, small devices incorporate multiple battery cells, while vehicles and other applications use battery modules comprising multiple electrically connected battery cells or battery packs containing multiple battery modules.

[0005] Meanwhile, during the charging and discharging of battery cells or during the performance testing of battery cells, temperature changes of battery cells are measured using temperature measuring components to determine whether the battery cells are abnormal.

[0006] However, during the measurement of temperature changes in individual battery cells, the temperature measuring component may detach from the battery cell, which may prevent accurate temperature measurements.

[0007] Figure 1 This is a schematic diagram of a standard battery cell clamp used for temperature measurement. (Example) Figure 1 As shown, the conventional battery cell fixture includes: a first plate 10 on which the battery cell 1 is placed; a second plate 20 in close contact with the upper surface of the battery cell 1; and a temperature measuring unit 30 in close contact with the first plate 10, the temperature measuring unit being configured to measure the temperature change of the battery cell 1.

[0008] The conventional temperature measurement unit 30 includes a suction cup 31 and a cable 32. The suction cup 31 is formed into a hemispherical body and is configured such that when pressure is applied thereon, air is expelled from the space within the hemispherical body, thereby achieving adsorption.

[0009] However, if the first plate has scratches or if an external impact is applied to the first plate, the temperature measuring unit can easily be separated from the first plate 10.

[0010] (Existing technical documents)

[0011] (Patent Document 1) Korean Patent Application Publication No. 2023-0045407 Summary of the Invention

[0012] Technical issues

[0013] In view of the above problems, the present invention has been made, and the object of the present invention is to provide a battery cell temperature measuring device and a battery cell temperature measuring method using the battery cell temperature measuring device, wherein the battery cell temperature measuring device has the following structure: wherein the temperature measuring unit configured to measure the temperature of the battery cell can be stably fixed in a predetermined position, thereby improving the reliability of the measurement results.

[0014] Technical solution

[0015] The battery cell temperature measuring device according to the present invention for achieving the above-mentioned objectives comprises: a first plate (100) in close contact with one surface of a battery cell (S); a second plate (200) in close contact with another surface of the battery cell (S), the second plate being provided with at least one through hole (210); a connecting unit (300) including a first connecting unit (310) detachably connected to the through hole (210); and a temperature measuring unit (400) extending through the connecting unit (300) and the through hole (210), the temperature measuring unit being configured to measure the temperature of the battery cell (S), wherein a fastening unit (220) is provided on the outer peripheral surface of the through hole (210), the fastening unit (220) being coupled to the connecting unit (300).

[0016] In the battery cell temperature measuring device according to the present invention, the fastening unit (220) may include: a first support portion (221), which extends a certain length when one side of the first support portion is fixed to the second plate (200); a flange-shaped second support portion (222), which is disposed on the edge of the other side of the first support portion (221); and a receiving protrusion (223), which is located on the second support portion (222) and is bent at a certain angle. The first connecting unit (310) may include: a cylindrical first extension portion (311) extending a certain length; a first flange portion (312) disposed on the outer surface of the first extension portion (311); and a first connecting protrusion (313) located on the lower surface of the first flange portion (312), which is fastened to the receiving protrusion (223) and is bent at a certain angle.

[0017] In the stacked battery cell temperature measuring device according to the present invention, the first connecting unit (310) may be made of a heat-insulating material.

[0018] In the battery cell temperature measuring device according to the present invention, the heat insulation material may include at least one of bakelite, PVC, Teflon and silicone rubber.

[0019] In the battery cell temperature measuring device according to the present invention, when the fastening unit (220) and the first connecting unit (310) are fastened to each other, the edge of one side of the first extension (311) of the first connecting unit (310) is in close contact with the inner surface of the through hole (210) of the second plate (200).

[0020] In the battery cell temperature measuring device according to the present invention, the temperature measuring unit (400) may include: a temperature sensor (410) which is in close contact with one surface of the battery cell (S); a cable (420) connected to the temperature sensor (410) having a certain length; and a cylindrical sealing member (430) configured to surround the cable (420) having an outer diameter in close contact with the inner surface of the first extension (311).

[0021] In the battery cell temperature measuring device according to the present invention, the through holes (210) of the second plate (200) may be configured as a plurality of through holes, and the battery cell temperature measuring device may further include a second connecting unit (320) configured to seal at least one of the plurality of through holes (210).

[0022] In the battery cell temperature measuring device according to the present invention, the plurality of through holes (210) may be formed at predetermined intervals in the total length direction or the total width direction of the battery cell.

[0023] In the battery cell temperature measuring device according to the present invention, the second connecting unit (320) may include: a cylindrical second extension (321) extending a certain length; a second flange (322) disposed on the outer surface of the second extension (321); and a second connecting protrusion (323) located on the lower surface of the second flange (322), the second connecting protrusion being fastened to the receiving protrusion (223), the second connecting protrusion being bent at a certain angle, and one or the other side of the second extension (321) being sealed.

[0024] The battery cell temperature measurement method according to the present invention includes: a first step of positioning the battery cell between a first plate and a second plate; a second step of fixing the first plate and the second plate; and a third step of connecting a first connecting unit to a fastening unit disposed on the second plate and measuring the temperature of the battery cell by a temperature measuring unit.

[0025] Beneficial effects

[0026] As is evident from the above, the battery cell temperature measuring device and the battery cell temperature measuring method using the battery cell temperature measuring device according to the present invention have the following advantages: a fastening unit is provided on the plate, and a connecting unit that can be structurally attached to and detached from the fastening unit is provided, thereby minimizing the detachment of the temperature measuring unit due to external impacts, etc.

[0027] Furthermore, the battery cell temperature measuring device and the battery cell temperature measuring method using the battery cell temperature measuring device according to the present invention have the following advantages: the plate is provided with a plurality of through holes for temperature measurement, thereby allowing selective measurement of the temperature at multiple locations of the battery cell.

[0028] Furthermore, the battery cell temperature measuring device and the battery cell temperature measuring method using the battery cell temperature measuring device according to the present invention have the following advantages: the connecting unit made of heat-insulating material is arranged around the temperature sensor, thereby minimizing the influence of ambient temperature, which can improve the reliability of the measurement results. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of a standard battery cell clamp used for temperature measurement.

[0030] Figure 2This is a perspective view showing the battery cell temperature measuring device according to the first embodiment of the present invention.

[0031] Figure 3 yes Figure 2 An exploded perspective view of the battery cell temperature measuring device shown.

[0032] Figure 4 It is an enlarged 3D image, showing Figure 2 The connection structure between the fastening unit and the first connecting unit in the battery cell temperature measuring device shown.

[0033] Figure 5 It is along Figure 2 A partial vertical sectional view taken by line AA.

[0034] Figure 6 This is a perspective view showing a battery cell temperature measuring device according to a second embodiment of the present invention.

[0035] Figure 7 yes Figure 6 An exploded perspective view of the battery cell temperature measuring device shown.

[0036] Figure 8 It is an enlarged 3D image, showing Figure 6 The connection structure between the fastening unit and the second connecting unit in the battery cell temperature measuring device shown.

[0037] Figure 9 It is along Figure 6 A partial vertical sectional view taken from line BB. Detailed Implementation

[0038] Preferred embodiments of the invention will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can readily implement the preferred embodiments of the invention. However, in describing the operating principles of the preferred embodiments of the invention in detail, detailed descriptions of known functions and structures incorporated herein will be omitted where such descriptions might obscure the gist of the invention.

[0039] Furthermore, the same reference numerals will be used in all the accompanying drawings to refer to parts that perform similar functions or operations. Throughout the specification, when a part is referred to as being connected to another part, the first part can be directly connected to the second part, and the first part can also be indirectly connected to the second part via other parts. Moreover, "including an element" does not mean excluding other elements, but rather that other elements may be included, unless otherwise stated.

[0040] In the following description, the battery cell temperature measuring device according to the present invention and the battery cell temperature measuring method using the battery cell temperature measuring device will be described with reference to the accompanying drawings.

[0041] Figure 2 This is a perspective view showing the battery cell temperature measuring device according to the first embodiment of the present invention. Figure 3 yes Figure 2 An exploded perspective view of the battery cell temperature measurement device is shown. Furthermore... Figure 4 It is an enlarged 3D image, showing Figure 2 The connection structure between the fastening unit and the first connecting unit in the battery cell temperature measuring device shown, and Figure 5 It is along Figure 2 A partial vertical sectional view taken by line AA.

[0042] refer to Figures 2 to 5 According to a first preferred embodiment of the present invention, the battery cell temperature measuring device includes a first plate 100, a second plate 200, a connecting unit 300, and a temperature measuring unit 400.

[0043] First, the first plate 100 is formed into a flat plate shape with a certain area and is used to support the lower surface of the battery cell S to be measured.

[0044] The second plate 200 is formed in the shape of a flat plate, which is in close contact with the upper surface of the battery cell S placed on the first plate 100, and is provided with a through hole 210 and a fastening unit 220.

[0045] Here, the through hole 210 is formed to penetrate the second plate 200 along the thickness direction, and allows the temperature sensor 410 of the temperature measuring unit 400 to extend through the through hole 210.

[0046] The fastening unit 220 is disposed above the through hole 210, i.e. above the second plate 200, along the edge of the through hole 210, and is detachably connected to the first connecting unit 310 of the connecting unit. The fastening unit includes a first support portion 221, a second support portion 222, and a receiving protrusion 223.

[0047] Specifically, with one side of the first support portion fixed to the edge of the through hole 210 of the second plate 200, the first support portion 221 is formed to extend a certain length in the vertical direction.

[0048] In other words, the first support portion 221 can be formed as a structure that extends vertically from a portion of the edge of the through hole 210, and this structure allows for checking the insertion depth and status of the first extension portion 311 when the first extension portion 311 of the first connecting unit 310 is inserted into the first support portion 221.

[0049] Of course, the first support portion 221 may also have a generally cylindrical shape with a hollow center.

[0050] The second support portion 222 can be formed as an annular strip extending a certain length horizontally from the edge of the other side of the first support portion 221.

[0051] The receiving protrusion 223 is located near the outer edge of the second support portion 222 and is formed into a shape bent at a certain angle. It is fastened to the first connecting protrusion 313 of the connecting unit 300, which will be described below.

[0052] Specifically, the receiving protrusion 223 may be formed in a portion of the outer edge of the second support portion 222, and may have a structural shape in which the receiving protrusion extends vertically from the outer edge and then extends a certain length toward the center of the first support portion 221.

[0053] The receiving protrusions 223 may be arranged in pairs, facing each other above the outer edge of the second support 222.

[0054] The connecting unit 300 can be detachably attached to the fastening unit 220 for securing the temperature measuring unit 400 in a predetermined position, and includes a first connecting unit 310.

[0055] The first connecting unit 310 is made of a heat-insulating material, thereby preventing the internal space of the first connecting unit from being affected by external temperatures. In one example, the heat-insulating material may include at least one of Bakelite, PVC, Teflon, and silicone rubber; however, the heat-insulating material is not limited to these, as long as the heat-insulating material can insulate against external temperatures.

[0056] The first connecting unit 310 includes a first extension 311, a first flange 312, and a first connecting protrusion 313.

[0057] The first extension 311 is formed into a cylindrical shape extending a certain length. When the first connecting unit 310 and the fastening unit 220 are connected to each other in a close contact, the first extension is inserted into the first support 221, thereby the edge of one side of the first extension is in close contact with the inner surface of the through hole 210.

[0058] That is, the outer diameter of the first extension 311 is formed to have a size that can closely contact the inner diameter of the through hole 210.

[0059] The first flange portion 312 is formed to extend a certain length in the horizontal direction from the outer surface of the first extension portion 311, and may have an outer diameter equal to the outer diameter of the second support portion 222 of the fastening unit 220.

[0060] The first connecting protrusion 313 is disposed on a portion of the lower surface of the first flange portion 312 and has a shape that is bent at a certain angle.

[0061] In other words, the first connecting protrusion 313 may have a structural shape in which the first connecting protrusion extends vertically in the direction toward the second support portion 222, and then extends a certain length in the direction toward the outside of the first extension portion 311.

[0062] The first connecting protrusions 313 may be arranged in pairs so that they face each other on the lower surface of the first flange portion 312.

[0063] Therefore, the first connecting protrusion 313 is interlocked with the receiving protrusion 223 of the fastening unit 220, and as the first connecting unit 310 and the fastening unit 220 rotate in a manner that they are in close contact with each other, the first connecting protrusion 313 and the receiving protrusion 223 are fastened, thereby restricting their movement in the vertical direction.

[0064] Therefore, the attachment and disassembly between the first connecting unit 310 and the fastening unit 220 can be achieved by rotating the first connecting protrusion 313 and the receiving protrusion 223.

[0065] The temperature measurement unit 400 is configured to measure the temperature change of a battery cell S located between the first plate 100 and the second plate 200, and the temperature measurement unit 400 includes a temperature sensor 410, a cable 420, and a sealing member 430.

[0066] The temperature sensor 410 extends sequentially through the through-hole 210 of the first extension 311 and the second plate 200, and is a sensor configured to measure the temperature of a surface of a battery cell S exposed through the through-hole 210.

[0067] Here, the temperature sensor 410 is not particularly limited, and both non-contact and contact temperature sensors can be used.

[0068] One side of the cable 420 is connected to the temperature sensor 410 and extends to a certain length, while the other side of the cable is connected to a controller (not shown). Therefore, the temperature value measured by the temperature sensor 410 is transmitted to the controller (not shown).

[0069] Meanwhile, the sealing member 430 is formed in a cylindrical shape and has an outer diameter that can closely contact the inner surface of the first extension 311, and can be located within the first extension 311. Furthermore, the cable 420 can be arranged to extend through the sealing member 430.

[0070] The sealing member 430 is configured to minimize the changes in the battery cell S exposed through the through hole 210 due to external air.

[0071] That is, the sealing member 430 can create a sealed state within the first extension 311 to block the contact between the battery cell S and the outside air, thereby enabling the measurement of the actual temperature of the battery cell S and improving the reliability and accuracy of the results.

[0072] Here, the sealing member 430 is preferably made of a material that has both heat insulation properties and a certain degree of elasticity, such as silicone rubber; however, the invention is not limited thereto.

[0073] Figure 6 This is a perspective view showing the battery cell temperature measuring device according to a second embodiment of the present invention, and Figure 7 yes Figure 6 An exploded perspective view of the battery cell temperature measurement device is shown. Furthermore... Figure 8 It is an enlarged 3D image, showing Figure 6 The connection structure between the fastening unit and the second connecting unit in the battery cell temperature measuring device shown, and Figure 9 It is along Figure 6 A partial vertical sectional view taken from line BB.

[0074] refer to Figures 6 to 9 In addition to having multiple through holes 210 and a second connecting unit 320, the battery cell temperature measuring device according to the second embodiment of the present invention is also provided with a reference. Figures 2 to 5 The battery cell temperature measuring device described in the first embodiment is the same, therefore, the description of the same structure will be omitted.

[0075] In the battery cell temperature measuring device according to the second embodiment, a plurality of through holes 210 may be formed in the second plate 200, and the plurality of through holes 210 may be formed at predetermined intervals in the total length direction. Although not shown in the figure, the plurality of through holes 210 may also be formed in the total width direction.

[0076] Multiple through holes 210 are configured to selectively or simultaneously measure the temperature at multiple locations of the battery cell S. Furthermore, a fastening unit 220 having the same structure as described in the first embodiment is formed in each of the multiple through holes 210.

[0077] The second connecting unit 320 serves as a cover, which is connected to one of the plurality of through holes 210 that is not being measured, i.e., connected to a fastening unit 220 that is not fastened to the first connecting unit 310.

[0078] That is, when the through hole 210 is open and not being measured, the measurement accuracy may be reduced. Therefore, it is preferable to block the outside air.

[0079] The second connecting unit 320 includes a second extension 321, a second flange 322, and a second connecting protrusion 323.

[0080] The second extension 321 is formed into a cylindrical shape extending a certain length. When the second connecting unit 320 and the fastening unit 220 are connected to each other in a close contact, the second extension is inserted into the second support 222, thereby the edge of one side of the second extension is in close contact with the inner surface of the through hole 210.

[0081] That is, the outer diameter of the second extension 321 is formed to have a size that allows it to come into close contact with the inner diameter of the through hole 210.

[0082] Here, unlike the first extension 311, the second extension 321 must block external air, so one side, the other side, or both sides of the second extension 321 are sealed.

[0083] The second flange portion 322 is formed to extend a certain length horizontally from the outer surface of the second extension portion 321, and may have an outer diameter equal to the outer diameter of the second support portion 222 of the fastening unit 220.

[0084] The second connecting protrusion 323 is disposed on a portion of the lower surface of the second flange portion 322 and has a shape that is bent at a certain angle.

[0085] In other words, the second connecting protrusion 323 may have a structural shape in which the second connecting protrusion extends vertically toward the second support portion 222, and then extends a certain length toward the outside of the second extension portion 321.

[0086] The second connecting protrusions 323 may be arranged in pairs so that they face each other on the lower surface of the second flange portion 322.

[0087] Therefore, the second connecting protrusion 323 interlocks with the receiving protrusion 223 of the fastening unit 220, and as the second connecting unit 320 and the fastening unit 220 rotate in a manner that they are in close contact with each other, the second connecting protrusion 323 and the receiving protrusion 223 are fastened, thereby restricting their movement in the vertical direction.

[0088] Therefore, the attachment and disassembly between the second connecting unit 320 and the fastening unit 220 can be achieved by rotating the second connecting protrusion 323 and the receiving protrusion 223.

[0089] Next, a method for measuring the temperature of a battery cell using the battery cell temperature measuring device according to the first embodiment with the aforementioned structure will be described.

[0090] The battery cell temperature measurement method includes: a first step: positioning the battery cell between a first plate and a second plate; a second step: fixing the first plate and the second plate; and a third step: connecting a first connecting unit to a fastening unit disposed on the second plate, and measuring the temperature of the battery cell through a temperature measuring unit.

[0091] The first step in positioning the battery cell between the first plate and the second plate is as follows: place the battery cell on the first plate, and then position the second plate on the battery cell so that the battery cell is positioned between the first plate and the second plate.

[0092] The second step of fixing the first plate and the second plate is the following steps: with the battery cell positioned between the first plate and the second plate, the first plate and the second plate are fixed by fastening the first plate and the second plate at their edges using fastening members such as bolts.

[0093] With the first plate and the second plate fixed, the battery cell positioned between the first plate and the second plate is fixed in place, thereby restricting its movement.

[0094] In the third step of connecting the first connecting unit to the fastening unit on the second plate and measuring the temperature of the battery cell by the temperature measuring unit, the first connecting unit and the fastening unit rotate in close contact, thereby interlocking the receiving protrusion of the fastening unit with the first connecting protrusion of the first connecting unit, and thus being connected and fixed to each other.

[0095] At this time, the temperature of the battery cells is measured continuously or discontinuously using a temperature measurement unit, and the measurement results are transmitted to the controller.

[0096] Meanwhile, when using the battery cell temperature measuring device according to the second embodiment, the first connection unit can be connected to each of the plurality of through holes, and the temperature measuring unit can be used to perform the measurement.

[0097] Furthermore, if necessary, the second connecting unit can be connected to and fixed to any of the plurality of through holes that are not used for temperature measurement, in order to seal the through hole.

[0098] Those skilled in the art will understand that, based on the above description, various applications and modifications can be made within the scope of this invention.

[0099] (Explanation of the labels in the attached diagram)

[0100] 100: First board

[0101] 200: Second board

[0102] 210: Through hole

[0103] 220: Fastening unit

[0104] 221: First support section; 222: Second support section

[0105] 223: Containment Breakthrough

[0106] 300: Connection Unit

[0107] 310: First connecting unit

[0108] 311: First extension portion; 312: First flange portion

[0109] 313: First connecting protrusion

[0110] 320: Second connecting unit

[0111] 321: Second extension; 322: Second flange.

[0112] 323: Second connecting protrusion

[0113] 400: Temperature Measurement Unit

[0114] 410: Temperature sensor

[0115] 420: Cable

[0116] 430: Sealing component

[0117] S: Battery cell

Claims

1. A battery cell temperature measuring device, comprising: The first plate is in close contact with one surface of the battery cell; The second plate is in close contact with the other surface of the battery cell, and the second plate is provided with at least one through hole; A connecting unit, the connecting unit including a first connecting unit detachably connected to the through hole; as well as A temperature measuring unit extends through the connecting unit and the through-hole, and the temperature measuring unit is configured to measure the temperature of the battery cell. The outer peripheral surface of the through hole is provided with a fastening unit, which is connected to the connecting unit.

2. The battery cell temperature measuring device according to claim 1, wherein, The fastening unit includes: The first support portion extends a certain length while one side of the first support portion is fixed to the second plate. A flange-shaped second support portion is disposed on the edge of the first support portion on the other side; and A receiving protrusion is located on the second support portion, and the receiving protrusion is bent at a certain angle. The first connection unit includes: A cylindrical first extension, which extends a certain length; A first flange portion, the first flange portion being disposed on the outer surface of the first extension portion; and A first connecting protrusion is located on the lower surface of the first flange portion, the first connecting protrusion is fastened to the receiving protrusion, and the first connecting protrusion is bent at a certain angle.

3. The battery cell temperature measuring device according to claim 2, wherein, The first connecting unit is made of thermal insulation material.

4. The battery cell temperature measuring device according to claim 3, wherein, The insulation material includes at least one of bakelite, PVC, Teflon, and silicone rubber.

5. The battery cell temperature measuring device according to claim 3, wherein, When the fastening unit is fastened to the first connecting unit, one edge of the first extension of the first connecting unit is in close contact with the inner surface of the through hole of the second plate.

6. The battery cell temperature measuring device according to claim 2, wherein, The temperature measurement unit includes: A temperature sensor, wherein the temperature sensor is in close contact with one surface of the battery cell; A cable, the cable being connected to the temperature sensor, the cable having a certain length; and A cylindrical sealing member configured to surround the cable, the sealing member having an outer diameter that is in close contact with the inner surface of the first extension.

7. The battery cell temperature measuring device according to claim 2, wherein, The second plate has multiple through holes, and The battery cell temperature measuring device further includes a second connection unit configured to seal at least one of the plurality of through holes.

8. The battery cell temperature measuring device according to claim 7, wherein, The plurality of through holes are formed at predetermined intervals along the total length or total width of the battery cell.

9. The battery cell temperature measuring device according to claim 7, wherein, The second connection unit includes: A cylindrical second extension, which extends a certain length; A second flange portion is disposed on the outer surface of the second extension portion; and A second connecting protrusion is located on the lower surface of the second flange portion. The second connecting protrusion is fastened to the receiving protrusion and is bent at a certain angle. One side or the other side of the second extension is sealed.

10. A method for measuring the temperature of a battery cell using the battery cell temperature measuring device according to any one of claims 1 to 9, the method comprising: First step: Position the battery cell between the first plate and the second plate; Second step: Fix the first plate and the second plate; as well as Third step: Connect the first connection unit to the fastening unit set on the second plate, and measure the temperature of the battery cell through the temperature measuring unit.

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