KR102480976B1 - Plate-type terminal of a super capacitor module with a function of reducing the step difference between battery cells and a super capacitor module including the same - Google Patents

Abstract

The present invention is a plate-type terminal attached to and used on one surface of a battery cell constituting a supercapacitor module, comprising: a terminal unit attached to one surface of the battery cell to transmit current of the battery cell to be connected to the terminal of the battery cell; A supercapacitor module having a step reduction function between battery cells including a heat conduction part provided on one side of the terminal part to conduct heat and a step difference reducing part provided on the other side of the terminal part to reduce a step difference between battery cells formed by the attachment of the terminal part It relates to a plate-type terminal of and a supercapacitor module including the same.

Description

Plate-type terminal of a super capacitor module with a function of reducing the step difference between battery cells and a super capacitor module including the same same}

The present invention relates to a plate-type terminal of a supercapacitor module and a supercapacitor module including the same, and more particularly, to a plate-type terminal of a supercapacitor module having a step reduction function between battery cells and a supercapacitor module including the same.

Batteries are used as power sources for various electronic devices. Batteries used for electric vehicles or other purposes are composed of battery packs in which dozens or hundreds of unit battery cells are aggregated depending on the required capacity.

In order to increase the use efficiency of the battery, it is necessary to maintain the same voltage level of the battery cells, and for this, a battery management system (BMS) is provided to charge or discharge each battery cell of the battery pack and Keep the voltage at an appropriate level.

Recently, secondary batteries capable of charging and discharging have been widely used as energy sources for wireless mobile devices. In addition, secondary batteries are electric vehicles (EVs), hybrid electric vehicles (HEVs), and plug-in hybrid electric vehicles that are proposed as a solution to air pollution caused by conventional gasoline vehicles and diesel vehicles using fossil fuels. (Plug-In HEV) and fuel cell electric vehicles (FCEV) are also attracting attention as a power source.

While one or two to three or four battery cells are used per device in small mobile devices, a supercapacitor module electrically connecting multiple battery cells is used in medium to large devices such as automobiles due to the need for high power and large capacity.

Since the supercapacitor module is preferably manufactured in a small size and weight as much as possible, prismatic batteries and pouch-type batteries that can be loaded with high integration and have a small weight compared to capacity are mainly used as battery cells (unit cells) of the supercapacitor module. there is. In particular, a pouch-type battery using an aluminum laminate sheet as an exterior member has recently attracted a lot of attention due to advantages such as light weight, low manufacturing cost, and easy shape deformation.

Since the battery cells constituting such a supercapacitor module are composed of secondary batteries capable of charging and discharging, such high-output and large-capacity secondary batteries generate a large amount of heat during charging and discharging processes. In particular, since the surface of the laminate sheet of the pouch-type battery widely used in the battery module is coated with a polymer material having low thermal conductivity, it is difficult to effectively cool the temperature of the entire battery cell.

If the heat of the battery module generated during the charging/discharging process is not effectively removed, heat accumulation occurs and consequently accelerates deterioration of the battery module, which may cause ignition or explosion in some cases. Therefore, a high-output and large-capacity battery pack requires a cooling system for cooling the battery cells in which it is built.

On the other hand, a plate-type terminal that serves as a terminal by using a metal plate to cool battery cells and serves as a heat sink has been proposed, but due to the thickness of the plate-type terminal when attaching the plate-type terminal to the battery cell, A level difference was generated in the part where the mold terminal was not provided, and this level difference acted as a factor inducing movement between battery cells.

For this reason, battery cells arranged in a row may be disturbed by vibration or a specific external force, and there is room for problems in that power supply between battery cells is not smooth.

The present invention is proposed to solve the above problems. In the present invention, a plate-type terminal having a cooling function by being attached to one surface of a battery cell to be connected to the terminal of the battery cell and acting as a heat sink while transmitting current, An object of the present invention is to provide a plate-type terminal of a supercapacitor module equipped with a step reduction function between battery cells and a supercapacitor module including the plate type terminal having a step difference reduction function between battery cells to prevent disorder between arranged battery cells.

The plate-type terminal of the supercapacitor module having a step reduction function between battery cells according to an embodiment of the present invention for solving the above problems is a plate-type terminal attached to one surface of the battery cell constituting the supercapacitor module and used, a terminal unit attached to one surface of the battery cell to be connected to the terminal of the battery cell and transmitting current of the battery cell; It may include a heat conduction part provided on one side of the terminal unit to conduct heat and a step reduction unit provided on the other side of the terminal unit to reduce a level difference between battery cells formed by the attachment of the terminal unit.

Here, the step reducing portion is made of a material having elasticity and electrical insulation, and may be connected to the terminal portion by a connection medium having heat resistance and electrical insulation.

In addition, the connection medium having heat resistance and electrical insulation may be made of a synthetic resin in which silicone is added to a base composed of a thermoplastic resin or aramid fiber.

In addition, the connection medium may be injection molded to be integrated with the terminal portion and the step reduction portion.

In addition, the plate-type terminal may be injection-molded to form a binding portion in which a plurality of embossed angles are combined between the terminal portion and the connection medium or between the connection medium and the step reducing portion.

Meanwhile, a supercapacitor module according to an embodiment of the present invention includes a frame having a predetermined length and having electrode leads provided at one or more ends of both ends of the length; a plurality of battery cells arranged in a line along the frame; plate-type terminals respectively attached to one surface of the plurality of battery cells to transfer current between the plurality of battery cells or between the battery cells and frame electrode leads; An elastic member interposed between each end of the frame and an outermost battery cell in the array and a control board for controlling the battery cell, wherein the plate-type terminal is attached to one surface of the battery cell to be connected to the terminal of the battery cell. a terminal unit that is configured to transmit current of the battery cell; It may include a heat conduction part provided on one side of the terminal unit to conduct heat and a step reduction unit provided on the other side of the terminal unit to reduce a level difference between battery cells formed by the attachment of the terminal unit.

A plate-type terminal of a supercapacitor module having a step reduction function between battery cells according to an embodiment of the present invention and a supercapacitor module including the same constitute a plate-type terminal of a supercapacitor module capable of implementing current transmission and cooling functions. Therefore, it is possible to prevent disorder between arranged battery cells by having a step reduction function between battery cells.

As a result, the battery cells can be prevented from being disturbed even by vibration or a specific external force, and power can be smoothly supplied between the battery cells to increase battery efficiency.

In addition, the effects according to the embodiments of the present invention mentioned above are not limited to the described contents, and may further include all effects predictable from the specification and drawings.

1 is a perspective view of a supercapacitor module including plate-type terminals of a supercapacitor module having a step reduction function between battery cells according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view in which parts of the supercapacitor module of FIG. 1 are disassembled.
FIG. 3 is a view showing plate-type terminals of the supercapacitor module having a step reduction function between battery cells of FIG. 1 .
4(a) and (b) are diagrams showing a state in which heat is transferred by a heat changing means according to an embodiment of the present invention.
5 is a schematic view showing an insulating layer formed on a heat conducting portion of a plate-type terminal according to an embodiment of the present invention when viewed from a planar direction.
Figure 6 (a) is an exemplary view showing a motion inducing state between battery cells in a state where the step reduction unit is not provided, (b) is an exemplary view showing a state in which the step reduction unit is provided according to an embodiment of the present invention to prevent movement between battery cells This is an example showing the status.
7 is an exemplary view showing a state in which the step reduction unit of FIG. 6 is connected to a connection medium.
8 is an exemplary view showing a form in which a step reduction unit and a connection medium or between a connection medium and a terminal unit are bound by a coupling unit according to an embodiment of the present invention.

Hereinafter, the description of the present invention with reference to the drawings is not limited to specific embodiments, and various transformations may be applied and various embodiments may be applied. In addition, the content described below should be understood to include all conversions, equivalents, or substitutes included in the spirit and scope of the present invention.

In the following description, terms such as first and second are terms used to describe various components, and are not limited in meaning per se, and are used only for the purpose of distinguishing one component from another.

Like reference numbers used throughout this specification indicate like elements.

Singular expressions used in the present invention include plural expressions unless the context clearly dictates otherwise. In addition, terms such as "include", "include" or "have" described below are intended to designate that features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist. should be construed, and understood not to preclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, a plate-type terminal of a supercapacitor module having a step reduction function between battery cells according to an embodiment of the present invention and a supercapacitor module including the same will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a supercapacitor module including plate-type terminals of a supercapacitor module having a step reduction function between battery cells according to an embodiment of the present invention, and FIG. 2 is an exploded view of a part of the supercapacitor module of FIG. 1 It is an exploded perspective view.

Referring to FIGS. 1 and 2 , the supercapacitor module 1 having a step reduction function between battery cells according to the present invention includes a frame 10, a battery cell 20, a plate-type terminal 30, and an elastic member 40. ) and a control board 50.

Specifically, the frame 10 may be configured to have a predetermined length, and may be formed as a single frame or formed by combining a plurality of frames. Preferably, the repair frames can be combined to facilitate the mounting of the battery cells 20, and the plurality of frames include a front frame 11, a rear frame 12, and a bottom frame 13 as shown in the drawing. , It may be configured to include the upper surface frame (14).

Here, the bottom frame 13 and the top frame 14 may be assembled to the front frame 11 and the rear frame 12, respectively, or may be integrally formed.

However, the shape of the plurality of frames described above is only an example, and is not limited thereto, and the configuration of the frame 10 may be variously composed.

Electrode leads 11a may be provided at one or more ends of both ends of the frame 10 . That is, when both ends of the frame 10 are constituted by the front frame 11 and the rear frame 12, the electrode lead 11a may be provided on one or more of the front frame 11 and the rear frame 12. .

The electrode lead 11a may be connected to the outermost battery cell 20 when the battery cells 20 are arranged in a row, and thus receive current from the battery cell 20 to the electrode lead 11a. It can be transmitted to the connected device.

Here, the electrode lead 11a may be directly connected to the battery cell 20, but may be preferably connected through the plate-shaped terminal 30. One feature of the present invention is to include the plate-type terminal 30, and a more detailed description of the plate-type terminal 30 will be described later.

A plurality of battery cells 20 may be provided and arranged in a line along the frame 10 . Here, the battery cell 20 is formed to have a terminal (not shown) for supplying current. The location of the terminal of the battery cell is not limited, but may preferably be an inner surface terminal inherent in the battery cell 20.

Since the battery cell 20 has terminals on the inner surface, exposure of the terminals can be minimized, and plate-type terminals 30 described later can be attached to one surface.

Meanwhile, when the battery cells 20 to which the plate-type terminals 30 are attached are arranged in a row, the plate-type terminals 30 may not face each other. That is, the battery cells 20 may be arranged so that only one plate-type terminal 30 is positioned between adjacent battery cells 20 .

The plate-type terminal 30 is a material having some thermal conductivity and electrical conductivity, and some having elasticity and electrical insulation, and is attached to one surface of each battery cell 20 through a portion having thermal conductivity and electrical conductivity, so that the battery cell 20 ) may be connected to a terminal (not shown). This means that the plate type terminal 30 can receive current from the battery cell 20 .

A more detailed description of the plate-type terminal 30 will be described later with reference to FIGS. 3 to 8 .

Here, as a material having thermal conductivity and electrical conductivity, it may be aluminum or an aluminum alloy material, but is not necessarily limited thereto, and other metals such as titanium or carbon composite materials may be used if the thermal conductivity and electrical conductivity are set. It could be possible.

In addition, as a material having elasticity and electrical insulation, it may be rubber or silicon, but is not necessarily limited thereto, and any material having elasticity and electrical insulation may be used in various ways.

The plate-type terminal 30 may receive current from the attached battery cell 20 and transfer the current to another battery cell 20, and the plate-type terminal 30 of the outermost battery cell 20 may In this case, current can be supplied from the attached battery cell 20 and transferred to the electrode lead 11a of the frame 10 .

On the other hand, the plate-type terminal 30 may be configured to easily dissipate or absorb heat in addition to supplying current as described above, and transfer a control signal from the control board 50 to the battery cell 20 to allow the battery cell 20 ) may be configured to monitor the battery cell 20 by transferring the state signal of the battery cell 20 to the control board 50 while controlling the battery cell 20 .

Detailed descriptions thereof will be described together while describing each configuration of the plate-type terminal 30 with reference to FIGS. 3 to 8 .

The elastic member 40 may be interposed between each end of the frame 10 and the outermost battery cell 20 among the arrangement of the battery cells 20 . At this time, the elastic member 40 supports the frame 10 and presses the battery cell 20 in the compression direction to increase adhesion between the battery cells 20 and to buffer the space between the battery cells 20 and the frame 10. can The elastic member 40 may have various forms such as a plate spring and a coil spring.

The control board 50 may be connected to the battery cell 20 to control the battery cell 20 . In addition, the control board 50 can detect the state of the battery cell 20 by receiving a state signal from the connected battery cell 20, and through this, the battery cell 20 can be monitored.

Here, the state signal of the battery cell 20 may be a state signal for whether the battery cell 20 is operating or remaining battery power of the battery cell 20, and the control board 50 mediates the plate-type terminal 30. It is connected to the control board 50 to control the battery cell 20 or receive a status signal from the battery cell 20 to perform monitoring.

When the control board 50 detects an abnormality when detecting the state of the battery cell 20, the control board 50 performs notification in various ways, such as emitting an LED light, emitting sound through a speaker, or sending a text message to a connected user terminal. It is configured so that monitoring of the battery cell 20 can be performed.

FIG. 3 is a view showing plate-type terminals of the supercapacitor module having a step reduction function between battery cells of FIG. 1, and FIG. FIG. 5 is a schematic diagram showing an insulating layer formed on a heat conducting portion of a plate-type terminal according to an embodiment of the present invention when viewed from a planar direction.

In addition, (a) of FIG. 6 is an exemplary diagram showing a motion inducing state between battery cells in a state in which a step reduction unit is not provided, and (b) is an exemplary view showing a movement between battery cells in a state in which a step reduction unit is provided according to an embodiment of the present invention. This is an exemplary view showing a state in which this is prevented, and FIG. 7 is an exemplary view showing a state in which the step reduction unit of FIG. 6 is connected to a connection medium, and FIG. 8 is an example view showing a step reduction unit and a connection medium or a connection medium according to an embodiment of the present invention. It is an exemplary view showing the form of binding between the and the terminal part by the binding part.

Referring to FIGS. 3 to 8 , the plate-type terminal 30 may include a terminal unit 31 , a heat conduction unit 32 and a step reduction unit 33 .

Specifically, the terminal unit 31 may be attached to one surface of the battery cell 20 to be connected to the terminal provided in the battery cell 20 in the form of a flat plate. At this time, the terminal unit 31 may be made of aluminum or an aluminum alloy material having thermal conductivity and electrical conductivity, and may be configured to receive current from the battery cell 20 and transfer it to another battery cell 20 or electrode lead 11a. .

The heat conduction unit 32 may be provided on one side of the terminal unit 31, and preferably may be provided in the form of a flat plate on the extension line of the terminal unit 31. At this time, the heat conducting part 32 is made of aluminum or an aluminum alloy material having thermal conductivity and electrical conductivity like the terminal part 31 so as to conduct heat between spaces or devices where the terminal part 31 and the heat conducting part 32 face each other. can be configured.

For example, when the heat conduction unit 32 faces the air layer, the terminal unit 31 may be configured to emit heat generated in the process of transmitting current to the air layer, or a temperature higher than the temperature generated in the terminal unit 31 When confronted with a device that emits heat of, it may be configured to conduct heat generated in the device to the terminal unit 31.

Using this, a heat changing unit 60 may be provided adjacent to the heat conducting unit 32 .

The heat changing means 60 is a heating element provided to form a higher temperature than the terminal part 31 or a cooling element provided to form a lower temperature than the terminal part 31. When provided as a heating element, the heat conducting part 32 is used as a medium. It may be formed to supply heat to the terminal unit 31, and when provided as a cooling body, may be formed to receive heat from the terminal unit 31 through the heat conducting unit 32.

That is, the heat conducting part 32 releases heat from the terminal part 31 as shown in (a) of FIG. 4 according to the heat change of the heat changing means 60 installed in the adjacent position or (b of FIG. 4). As shown in ), it may be configured to supply heat to the terminal part 31, and the heat conversion means 60 that makes the heat conduction part 32 work is an air-cooled, water-cooled or refrigerant-type cooling pipe or a heat It may be provided with various means capable of changing heat, such as a sink, a heater, or a heating element.

The heat changing means 60 as described above is only an example and is not necessarily provided, and when the heat changing means 60 is not provided, the heat conducting part 32 is configured to face the air layer as described above, ) may be configured to dissipate the heat of the air layer.

Meanwhile, as shown in FIG. 5 , the heat conducting portion 32 may be surface-treated to form an insulating layer 32a on the surface together with a bent portion 32b, which will be described later. The surface of the thermal conductive part 32 treated to form the insulating layer 32a on the surface thereof can prevent short-circuiting due to moisture such as condensation that may occur during cooling.

Here, when the material having thermal conductivity and electrical conductivity is aluminum or an aluminum alloy material, the heat conductive portion 32 may be surface treated by a hard anodizing process. An aluminum oxide (Al2O3) film layer is formed on the surface of the heat conductive part subjected to surface treatment by the hard anodizing process, and this aluminum oxide film layer can serve as the insulating layer 32a.

More specifically, when electrolysis is performed with a diluted-acid solution across the anode over the heat conducting part 32 made of aluminum or aluminum alloy material, the oxygen generated at the anode strongly adheres to the surface of the heat conducting part 32. An aluminum oxide coating layer is formed. This aluminum oxide film layer has properties such as corrosion resistance, wear resistance, and electrical insulation, and can serve as an insulating layer 32a to prevent short circuits.

In addition, when the hard anodizing process is performed on the surface of aluminum or aluminum alloy, the hardness of the heat conductive part 32 can be enhanced, and it can have very strong properties against moisture including salt water.

In addition, the heat conducting portion 32 may include a bent portion 32b bent toward one side of the battery cell 20 . The bent portion 32b is located at the far end of a plane extending from the terminal portion 31 to the heat conductive portion 32 and is formed to be bent to one side of the battery cell 20 to increase the heat transfer area of the heat conductive portion 32 and plate The mold terminals 30 may be regularly aligned on the battery cell 20 .

The step reduction unit 33 is provided on the other side of the terminal unit 31 to reduce a level difference between the battery cells 20 caused by the attachment of the terminal unit 31 to the battery cell 20 .

More specifically, when the terminal portion 31 is a plate having a thickness and is attached to the battery cell 20, a portion of the battery cell 20 to which the terminal portion 31 is not attached has a step corresponding to the thickness of the terminal portion 31. Inevitably, such a stepped space can act as a space that can cause movement between the battery cells 20 when the battery cells 20 are stacked in a row.

For this reason, as shown in (a) of FIG. 6, the battery cells 20 arranged in a row may be disturbed by vibration or a specific external force, and power supply between the battery cells 20 may not be smooth. As shown in (b) of FIG. 6, the present invention can solve the above-mentioned problems by providing a step reducing portion 33 to the other side of the terminal portion 31 where the terminal portion 31 and the heat conductive portion 32 are not provided. .

It is preferable that the step reducing portion 33 has the same or similar thickness as the terminal portion 31 in order to minimize the step difference between the battery cells 20, and to relieve shock between the battery cells 20 and prevent a short circuit. It is preferable to be provided with a material having elasticity and electrical insulation.

Here, the material having elasticity and electrical insulation may be a material such as rubber or silicon, but is not necessarily limited thereto, and various materials having elasticity and electrical insulation may be used.

At this time, the step reducing portion 33 may be manufactured separately from the terminal portion 31 and coupled or fused to the terminal portion 31 to be formed on the other side of the terminal portion 31, but more preferably, as shown in FIG. 7, heat resistance and It may be connected to the terminal unit 31 by a connection medium 33a having electrical insulation.

The connection medium 33a having heat resistance and electrical insulation can prevent the step reducing portion 33 from melting when heat is directly applied to the step reducing portion 33 when heat is generated due to electrical conduction of the terminal portion 31, Fire can be prevented.

Such a connection medium (33a) may be made of a thermoplastic resin such as Teflon or PEEK resin or a synthetic resin in which silicon is added to a base composed of aramid fibers. Thermoplastic resins such as Teflon and PEEK resin have heat resistance that can withstand temperatures of about 200° C. to 300° C., aramid fibers have heat resistance that can withstand temperatures of about 400° C., and silicone can be used to increase electrical insulation properties.

However, this is not necessarily limited to a preferred example, and the material having heat resistance and electrical insulation may be configured in various ways other than the above configuration.

Meanwhile, the connection medium 33a may be injection molded to be integrated with the terminal part 31 and the step reduction part 33 . At this time, when forming the terminal part 31 in the injection furnace, the step reducing part 33 and the molten material of the terminal part 31 can be injected together and integrated, or the terminal part 31 and the step reducing part 33 can be injected first It may be possible to perform double injection in which the connection medium 33a is injected between the terminal portion 31 and the stepped portion 33 later.

That is, an injection method for integrating the connection medium 33a with the terminal portion 31 and the step reducing portion 33 is not limited.

At this time, between the terminal part 31 and the connection medium 33a or between the connection medium 33a and the step reduction part 33, as shown in FIG. Can be injection molded.

For example, the binding portion 33b may be provided in the form of a 'T'-shaped protrusion in which horizontal embossing and vertical embossing are harmonized, or in the form of an 'F'-shaped protrusion in which one horizontal embossment and two vertical embossments are in harmony. can In addition, although not described, the binding portion 33b may be formed by combining various embossments.

The coupling part 33b is provided between the terminal part 31 and the connection medium 33a or between the connection medium 33a and the step reduction part 33 during injection, so that there is a gap between the terminal part 31 and the connection medium 33a. It may be formed to increase the binding force and the binding force between the connection medium 33a and the step reduction unit 33.

In addition, the plate-type terminal 30 may further include a connection portion 34 . The connecting portion 34 is configured to connect between the control board 50 that controls the battery cell 20 and the terminal portion 31, and is configured to protrude from the plate-type terminal 30 in the installation direction of the control board 50. can

At this time, the connection part 34 is shown as protruding from the heat conducting part 32 in the drawing, but this is to avoid the upper frame 10 and be connected to the control board 50, and the protruding position depends on the control board 50. It can vary, so the protruding position is not limited.

The control board 50 may be connected to the battery cell 20 through the connection unit 34 to control the battery cell 20 or to monitor the state of the battery cell 20 .

Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art can implement them in other specific forms without changing the technical spirit or essential features of the present invention. you will be able to understand Therefore, the embodiments described above are illustrative in all respects and are not restrictive.

1: Supercapacitor module
10 : frame
11: front frame
11a: electrode lead
12: rear frame
13: bottom frame
14: top frame
20: battery cell
30: plate type terminal
31: terminal part
32: heat conduction unit
32a: insulating layer
32b: bent portion
33: step reduction unit
33a: connection medium
33b: binding part
34: connection part
40: elastic member
50: control board
60: thermal change means

Claims (6)

A plate-type terminal attached to and used on one side of a battery cell constituting a supercapacitor module,
A terminal unit that is attached to one surface of the battery cell in the form of a flat plate and is connected to an inner surface terminal inherent in the battery cell to transmit current of the battery cell;
A heat conduction portion provided in a flat plate shape on an extension line reaching the edge of the battery cell from the terminal portion and conducting heat to the terminal portion; and
A plate-type terminal of a supercapacitor module having a step difference reduction function between battery cells including a step difference reducing portion provided on the other side of the terminal portion and reducing a step difference between battery cells formed by attaching the terminal portion.
According to claim 1,
The step reduction unit,
It is provided with a material having elasticity and electrical insulation,
A plate-type terminal of a supercapacitor module having a step reduction function between battery cells, characterized in that connected to the terminal unit by a connection medium having heat resistance and electrical insulation.
According to claim 2,
The connection medium having heat resistance and electrical insulation,
A plate-type terminal of a supercapacitor module with a step reduction function between battery cells, characterized in that it is made of synthetic resin with silicon added to a base composed of thermoplastic resin or aramid fiber.
According to claim 2,
The linking agent is
A plate-type terminal of a supercapacitor module having a step reduction function between battery cells, characterized in that injection molded to be integrated with the terminal portion and the step reduction portion.
According to claim 4,
A plate-type terminal of a supercapacitor module having a step reduction function between battery cells, characterized in that the injection molding is formed so that a coupling portion forming a combination of a plurality of embossments is formed between the terminal portion and the connection medium or between the connection medium and the step reduction portion.
a frame having a predetermined length and provided with electrode leads at at least one end of both ends of the length;
a plurality of battery cells arranged in a line along the frame;
plate-type terminals respectively attached to one surface of the plurality of battery cells to transfer current between the plurality of battery cells or between the battery cells and frame electrode leads;
An elastic member interposed between each end of the frame and the outermost battery cell of the array, and
It includes a control board for controlling the battery cell,
The plate type terminal,
A terminal unit that is attached to one surface of the battery cell in the form of a flat plate and is connected to an inner surface terminal inherent in the battery cell to transmit current of the battery cell;
A heat conduction portion provided in a flat plate shape on an extension line reaching the edge of the battery cell from the terminal portion and conducting heat to the terminal portion; and
A supercapacitor module comprising a step reduction portion provided on the other side of the terminal portion to reduce a step difference between battery cells formed by the attachment of the terminal portion.

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