KR20170042406A - Extendible Battery Cell Module - Google Patents

Abstract

The present invention relates to an expandable battery cell module. As a plurality of unit cell modules are able to be conveniently combined with or separated from a connection electrode elongated in one direction, the present invention is capable of easily changing the whole generatable power capacity by expanding or reducing the capacity, and more conveniently and quickly manufacturing battery cell modules of various capacities by expanding or changing the same unit cell module without manufacturing an extra battery cell module according to a capacity type. As the unit cell modules are able to be combined in a separable condition during a procedure of combining the unit cell modules with the connection electrode, the present invention is capable of stabilizing the entire performance by stably maintaining a combination state of the unit cell modules. The present invention includes: a plurality of unit cell modules including anode and cathode terminals; and anode and cathode connection electrodes formed to be connected to the anode and cathode terminals.

Description

[0001] The present invention relates to an extendible battery cell module,

The present invention relates to an expandable battery cell module. More specifically, the unit cell modules can be conveniently connected to or disconnected from the connection electrodes formed in a long direction in one direction, thereby easily changing the total available power capacity by expanding or contracting. It is possible to manufacture battery cell modules of various capacities more conveniently and quickly by expanding or modifying the same unit cell module without separately preparing separate battery cell modules according to the types of capacities, A plurality of unit cell modules can be detachably coupled to each other so as to stably maintain a coupled state of the plurality of unit cell modules, thereby stabilizing the overall performance of the battery cell module.

Generally, a large-capacity battery (battery module) capable of generating a large amount of electric power for driving an energy storage system (ESS), an electric vehicle, a hybrid vehicle and an electric motorcycle (E-Scooter) Can be used.

In particular, interest in energy storage systems (ESS), which can maximize the efficiency of energy storage and quality, and energy use as core of smart grid, is increasing with the spread of renewable energy . The energy storage system (ESS) may include a large-capacity battery cell module having a plurality of battery cells, and may include a power system (not shown) to supply remaining power (remaining energy) which is a technology that can optimize the quality and efficiency of electric power.

The battery cell module used as such an energy storage device is configured by connecting a plurality of battery cells in series and has recently been used in a wide variety of applications such as electric bicycles, electric scooters, outdoor LED lights, mobile phone charging, It is used as a power supply for household appliances.

As a battery included in a battery cell module as an energy storage device, a lithium battery is mainly used. A lithium battery includes a lithium ion battery using a liquid electrolyte and a lithium polymer battery using a solid polymer. The battery module includes a lithium ion battery Are connected in series and used as a module.

Since the capacity of the battery cell module is generally determined in a predetermined form, the user must determine the capacity of the battery cell module in advance by grasping the power capacity according to the use purpose, do.

When the capacity of the battery cell module is manufactured in a predetermined form, it is very inefficient in terms of energy efficiency and various types of battery cell modules must be manufactured if the required power capacity changes or is used for other purposes The production work and the management work also become complicated.

Korean Patent Publication No. 10-2014-0084619

SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the prior arts, and it is an object of the present invention to provide a method and a system for connecting / disconnecting a plurality of unit cell modules to a connection electrode formed in a long direction in one direction, It is possible to easily change the entire power capacity by expanding or reducing the capacity of the battery cell module, and it is not necessary to separately manufacture a separate battery cell module according to the type of capacity, And to provide an expandable battery cell module that can be manufactured conveniently and quickly.

Another object of the present invention is to provide an electrode terminal of a unit cell module which can be connected to a connection electrode in a detachable manner, The present invention provides an expandable battery cell module that stably maintains a contact state between an electrode terminal and a connection electrode, thereby achieving a more stable structure.

It is a further object of the present invention to provide a method of connecting a plurality of unit cell modules in a detachable manner in a process of coupling a unit cell module to a connection electrode, And to provide an expandable battery cell module capable of stabilizing the overall performance.

The present invention relates to a battery pack comprising a plurality of unit cell modules arranged in a state where a plurality of battery cells are connected in series and having positive and negative terminals respectively connected to a plurality of battery cells at one side thereof; And a positive electrode connection electrode and a negative electrode connection electrode formed so that a positive terminal and a negative terminal of the unit cell module are detachably contacted with each other, wherein the positive connection electrode and the negative connection electrode are elongated in one direction, The unit cell module is arranged in a row along the longitudinal direction of the anode connection electrode and the cathode connection electrode, and the anode connection electrode and the anode connection electrode are connected in a manner that the anode terminal is coupled to the anode connection electrode, And the negative electrode connection electrode is detachably connected to the negative electrode connection electrode.

The unit cell module includes an upper support block and a lower support block disposed at the upper and lower ends of the battery cell such that the battery cells are fixedly supported. And the upper and lower support blocks may have a connection terminal for connecting the battery cells such that a plurality of the battery cells are serially connected in series from the positive terminal to the negative terminal, .

The positive electrode connection electrode and the negative electrode connection electrode are formed in a plate shape elongated in one direction and the positive electrode terminal and the negative electrode terminal of the unit cell module are inserted into the positive electrode connection electrode and the negative electrode connection electrode in a direction perpendicular to the longitudinal direction, And can be formed so as to be in elastic contact with each other.

In addition, the unit cell module may be formed such that mutually adjacent unit cell modules along the longitudinal direction of the anode connection electrode and the cathode connection electrode are detachably coupled to each other.

In addition, at least one of the upper support block and the lower support block of the unit cell module has a coupling groove formed on one side thereof and a coupling protrusion formed on the other side thereof at a position corresponding to the coupling groove so as to be inserted into the coupling groove And the unit cell modules adjacent to each other by the coupling groove and the coupling protrusion can be detachably coupled to each other.

Further, a coupling groove extension portion extending in a direction perpendicular to a depth direction of the coupling groove is formed on a bottom surface of the coupling groove, and a coupling groove extending portion is formed in an end of the coupling projection, And the engagement groove extension portion and the engagement projection extension portion can be inserted and coupled as the slide movement is performed in a state in which the mutually opposing faces of mutually adjacent unit cell modules are in contact with each other.

The positive electrode connection electrode and the negative electrode connection electrode are arranged in parallel to each other so as to be vertically spaced apart from each other. The positive electrode terminal and the negative electrode terminal of the unit cell module are arranged to be offset from each other in the vertical direction, Lt; / RTI >

In addition, the unit cell module may be symmetrically disposed on both sides of the anode connection electrode and the cathode connection electrode, respectively.

According to the present invention, a plurality of unit cell modules can be successively and conveniently connected or disconnected to a connection electrode formed in a long direction in one direction, thereby easily changing the total available power capacity by expanding or contracting It is possible to manufacture battery cell modules of various capacities more conveniently and quickly by expanding or changing the same unit cell module without separately preparing separate battery cell modules according to the types of capacities.

Further, since the electrode terminal of the unit cell module can be coupled to the connection electrode in a detachable manner, it is possible to more easily perform the expansion change operation of the unit cell module, and the electrode terminal of the unit cell module can be elastically contacted The contact state between the electrode terminal and the connection electrode can be stably maintained, thereby achieving a more stable structure.

In addition, in the process of coupling the unit cell module to the connection electrode, a plurality of unit cell modules can be detachably coupled to each other so that the combined state of the plurality of unit cell modules can be stably maintained, thereby stabilizing the overall performance There is an effect that can be.

1 is a perspective view schematically showing an assembled shape of an expandable battery cell module according to an embodiment of the present invention,
FIG. 2 is a perspective view schematically showing a configuration of a unit cell module of an expandable battery cell module according to an embodiment of the present invention; FIG.
3 is an exploded perspective view schematically showing a detailed configuration of a unit cell module of an expandable battery cell module according to an embodiment of the present invention.
FIG. 4 is a cross-sectional view taken along the lines "AA" and "BB" in FIG. 2 for explaining the internal structure of the unit cell module of the expandable battery cell module according to an embodiment of the present invention;
FIG. 5 is a perspective view schematically showing a coupling relationship of an expandable battery cell module according to an embodiment of the present invention, FIG.
6 is a cross-sectional view schematically showing a coupling structure of an expandable battery cell module according to an embodiment of the present invention.
7 is a perspective view schematically showing an assembled shape of an expandable battery cell module according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 1 is a perspective view schematically showing an assembled shape of an expandable battery cell module according to an embodiment of the present invention. FIG. 2 is a schematic view showing the structure of a unit cell module of an expandable battery cell module according to an embodiment of the present invention. FIG. 3 is an exploded perspective view schematically showing a detailed configuration of a unit cell module of an expandable battery cell module according to an embodiment of the present invention, and FIG. 4 is an exploded perspective view schematically showing an expanded type battery module according to an embodiment of the present invention. Sectional view schematically showing the internal structure of the battery cell module with respect to the unit cell module.

The expandable battery cell module according to an embodiment of the present invention can easily expand and change a plurality of battery cell modules, and includes a plurality of unit cell modules 100, an anode connection electrode 200 and a cathode connection electrode 300 ).

The unit cell module 100 includes a plurality of battery cells 101 connected in series and a positive terminal 110 and a negative terminal 120 to be connected to a plurality of battery cells 101 connected in series at one side .

The positive electrode connection electrode 200 and the negative electrode connection electrode 300 are formed so that the positive electrode terminal 110 and the negative electrode terminal 120 of the unit cell module 100 can be removably contacted with each other. That is, the positive electrode terminal 110 of the unit cell module 100 is in contact with the positive electrode connection electrode 200 and the negative electrode terminal 120 of the unit cell module 100 is in contact with the negative electrode connection electrode 300.

At this time, the anode connection electrode 200 and the cathode connection electrode 300 are elongated in one direction parallel to each other, and the plurality of unit cell modules 100 are connected to one anode connection electrode 200 and the cathode connection electrode 300 All connected in parallel at the same time. 1, the plurality of unit cell modules 100 are arranged in a row along the longitudinal direction of the anode connection electrode 200 and the cathode connection electrode 300, And is detachably contact-coupled to the anode connecting electrode 200 and the cathode connecting electrode 300 in such a manner that the cathode terminal 120 is coupled to the cathode connecting electrode 300. [

According to this structure, the expandable battery cell module according to an embodiment of the present invention has a structure in which a plurality of unit cell modules 100 are sequentially and conveniently connected to a positive electrode connection electrode 200 and a negative electrode connection electrode 300, which are elongated in one direction, And the total power capacity can be enlarged and changed, and it is not necessary to manufacture a separate battery cell module according to the type of capacity, and the same unit cell module 100 can be expanded and changed, It can be produced conveniently and quickly.

Next, each sub-configuration is discussed in more detail.

The unit cell module 100 includes a plurality of battery cells 101 connected in series and the plurality of battery cells 101 are fixedly supported by the upper and lower support blocks 130 and 140.

The upper support block 130 is disposed at the upper end of the battery cell 101 and the lower support block 140 is disposed at the lower end of the battery cell 101. The upper support block 130 and the lower support block 140 A plurality of through holes (H) are formed for inserting and fixing a plurality of battery cells (101).

The positive terminal 110 and the negative terminal 120 connected to the plurality of battery cells 101 are respectively protruded from one end of the upper support block 130 and the lower support block 140, respectively. A plurality of battery cells 101 are connected to the battery cell 101 such that the battery cells 101 are connected in series from the positive terminal 110 to the negative terminal 120 in the upper support block 130 and the lower support block 140, A terminal 150 is formed. In this case, as shown in FIGS. 3 and 4, the plurality of battery cells 101 may be alternately arranged such that the (+) and (-) poles are arranged in different directions.

A separate protective cover 160 may be mounted on the upper portion of the upper support block 130 to be externally closed. A protective cover (not shown) is attached to the lower portion of the lower support block 140, Can be closed.

3 and 4, the plurality of battery cells 101 are arranged in the vertical direction of the (+) and (-) poles, respectively, as shown in FIG. 3 and FIG. And the connection terminals 150 are formed to connect two adjacent battery cells 101 in the upper support block 130 and the lower support block 140, respectively.

For example, the battery cells B1 and B2 are connected in series through a connection terminal 150 of the lower support block 140, B2 and B3 are connected in series through a connection terminal 150 of the upper support block 130, B3 and B4 are connected in series through the connection terminal 150 of the lower support block 140 and the two battery cells 101 which are repeatedly adjacent to each other are continuously connected to the upper support block 130 and the lower support block 140 , All the battery cells 101 from B1 to B13 are connected in series.

At this time, the (+) pole of the battery cell B1 located at the beginning of the series connection type is connected to the positive terminal 110 by the connection terminal 150 formed in the upper support block 130, and the battery cell B13 Is connected to the negative electrode terminal 120 by the connection terminal 150 formed in the lower support block 140. [ In this way, all the battery cells 101 are connected in series from the positive terminal 110 to the negative terminal 120.

1, the anode connection electrode 200 and the cathode connection electrode 300 are formed in a flat plate shape and are elongated in one direction. The anode connection electrode 200 and the cathode connection electrode 300 are arranged in parallel and spaced apart from each other. As shown in Fig. Of course, although not shown, the other side of the anode connection electrode 200 and the cathode connection electrode 300 may be mounted on a separate main board (not shown) and electrically connected to an external device.

A plurality of unit cell modules 100 are coupled to one of the anode connection electrodes 200 and the cathode connection electrodes 300. The anode connection terminals 200 are connected to the anode terminals 110 of the unit cell modules 100, And the negative electrode terminal 120 of each unit cell module 100 is contact-coupled with the negative electrode connection electrode 300. Accordingly, the plurality of unit cell modules 100 are connected to one anode connection electrode 200 and the cathode connection electrode 300, and are connected in parallel.

The positive electrode terminal 110 and the negative electrode terminal 120 of the unit cell module 100 are inserted into the positive electrode connection electrode 200 and the negative electrode connection electrode 300 in a direction perpendicular to the longitudinal direction, do. 2 to 4, the two terminal plates T1 and T2 are spaced apart from each other, and each of the connection electrodes 200 and 300 May be configured to be in insertion contact. At this time, as shown in the enlarged view of FIG. 4, the two terminal plates T1 and T2 may have a configuration in which their ends are brought into contact with each other by an elastic force, The positive electrode terminal 110 and the negative electrode terminal 120 can be brought into elastic contact with the connection electrodes 200 and 300.

The unit cell module 100 described above is disposed in series along the longitudinal direction of the anode connection electrode 200 and the cathode connection electrode 300 to connect the anode connection electrode 200 and the anode connection electrode 300 with the anode The upper and lower support blocks 130 and 140 are coupled to each other through the terminal 110 and the cathode terminal 120. At this time, It can possibly be contact-coupled. The contact-coupling structure of the unit cell module 100 may be a contact-coupling structure that is detachable through the coupling groove 131 and the coupling protrusion 132, which will be described later in detail.

When a plurality of battery cells 101 are connected in series and used as a single module, the battery cells 101 may be damaged due to chemical differences, physical property differences, A voltage difference may be generated. The life of the module may be shortened due to the voltage difference between the battery cells 101. Particularly, due to the performance degradation such as the voltage drop of one battery cell 101, the entire packaged module may have to be replaced. Therefore, a separate cell balancing process may be required to detect and manage the voltage difference for the plurality of battery cells 101.

According to an embodiment of the present invention, voltage measurement can be performed on each battery cell 101 so that the cell balancing process can be performed even when a plurality of unit cell modules 100 equipped with a plurality of battery cells 101 are connected. .

For example, the unit cell module 100 is formed with a voltage measurement cell terminal 160 capable of measuring the voltage of each of a plurality of battery cells 101, May extend from the connection terminal 150 formed in the upper support block 130 and the lower support block 140 of the unit cell module 100 as shown in FIG. The connection terminal 150 is connected to a voltage measurement board terminal (not shown) formed on a separate main board (not shown) to perform a cell balancing process. The cell balancing control process can be performed in various ways through a cell balancing control method for a general battery module, and thus a detailed description thereof will be omitted.

For example, as shown in FIG. 4, for the battery cell B1, the voltage of the battery cell B1 is measured by using the voltage measurement cell terminal 160 according to an embodiment of the present invention. The voltage measurement cell terminal P1 extending from the connection terminal 150 of the upper support block 130 connected to the (+) pole of the lower support block 140 and the connection terminal 150 of the lower support block 140 connected to the (- The voltage of the battery cell B1 can be measured using the extended voltage measurement cell terminal P2. The voltage measurement cell terminal P2 extending from the connection terminal 150 of the lower support block 140 connected to the (+) pole of the B2 and the upper support block 130 connected to the (- The voltage of the battery cell B2 can be measured using the voltage measurement cell terminal P3 extending from the connection terminal 150. [ In the same way, the voltage of all the battery cells from B1 to B13 can be measured repeatedly.

The plurality of voltage measurement cell terminals 160 are formed in the unit cell modules 100 such that a plurality of the voltage cell cell terminals 100 can measure the voltage of the plurality of battery cells 101. In this case, 1, a plurality of voltage measurement cell terminals 160 formed in each unit cell module 100 are connected to a voltage measurement cell (not shown) of the unit cell module 100 adjacent to each other, And the terminals 160 are formed to be electrically connected to each other.

When the plurality of unit cell modules 100 are electrically connected to each other so that the voltage measurement cell terminals 160 of the unit cell modules 100 are electrically connected to each other, The voltage to the battery cell 101 at a specific position with respect to the whole can be measured in a package unit.

For example, when the unit cell modules 100 are connected in five contacts, since the voltage measurement cell terminals P1 and P2 are connected to the battery cell B1 of each unit cell module 100, the five unit cell modules 100 Can measure the voltage in a package unit including all five battery cells B1 connected to each other by the voltage measurement cell terminal.

In this manner, voltages can be measured in units of five packages of all the battery cells B1 to B13, and the voltage to the battery cell 101 at each specific position can be measured. Therefore, The cell balancing control process can be easily performed on the expanded form in which the module 100 is combined.

FIG. 5 is a perspective view schematically showing a coupling relationship of the expandable battery cell module according to an embodiment of the present invention, FIG. 6 is a cross-sectional view schematically showing a coupling structure of the expandable battery cell module according to an embodiment of the present invention, to be.

As described above, the plurality of unit cell modules 100 are arranged in series along the longitudinal direction of the anode connection electrode 200 and the cathode connection electrode 300, The unit cell modules 100 are separated from each other in such a manner that the side surfaces of the upper and lower support blocks 130 and 140 are in contact with each other, do.

For this purpose, at least one of the upper support block 130 and the lower support block 140 of the unit cell module 100 has a coupling groove 131 formed at one side thereof and a coupling groove 131 is formed at the other side thereof, The coupling protrusions 132 are formed at positions corresponding to the coupling grooves 131 and the unit cell modules adjacent to each other can be detachably coupled to each other by the coupling recesses 131 and the coupling protrusions 132. [

5, a coupling groove 131 is formed on a first side S1 of the upper support block 130 and a coupling groove 131 is formed on a second side S2 of the upper support block 130. [ A coupling protrusion 132 which can be inserted into the coupling protrusion 131 can be formed. The first side S1 of the upper support block 130 of one unit cell module 100 and the second side S2 of the upper support block 130 of the neighboring unit cell module 100 are connected to each other, The engaging grooves 131 and the engaging projections 132 formed on the first side surface S1 and the second side surface S2 of the upper support block 130 are inserted and engaged with each other, The neighboring unit cell modules 100 are detachably contacted with each other.

In this case, as shown in FIGS. 5 and 6, the coupling groove 131 and the coupling protrusion 132 may be all formed on the first side S1 of the upper support block 130, and correspondingly, The coupling protrusion 132 and the coupling groove 131 may be formed at corresponding positions on the side surface S2.

An engaging groove extension part 131a extending in a direction perpendicular to the depth direction of the engaging groove 131 is formed in the bottom surface of the engaging groove 131. A coupling groove extension part 131a is formed at the end of the engaging projection 132, The unit protrusions 132a may be extended to correspond to the coupling groove extensions 131a so as to be inserted into the protrusions 131a of the unit cell modules 100. When mutually opposing faces of mutually adjacent unit cell modules 100 are in contact with each other The coupling groove extension portion 131a and the coupling projection extending portion 132a may be inserted and coupled as the slide is moved.

6A, when the upper support blocks 130 of the unit cell modules 100 adjacent to each other are brought into contact with each other in the direction in which the contact surfaces contact each other, the engagement protrusions 132 are engaged with the engagement grooves The engaging protrusion 132a is inserted into the engaging groove extension portion 131a and the engaging protrusion 132a is inserted into the engaging groove extension portion 131a as shown in Figure 6 (b) . By forming the coupling groove extension portion 131a and the coupling projection extension portion 132a in a direction perpendicular to the direction in which mutual contact surfaces of the upper support block 130 or the lower support block 140 are in contact with each other, The detachment of the unit cell module 100 can be more completely prevented, and the coupling force can be further enhanced.

As described above, when the unit cell modules 100 are brought into contact with each other in such a manner that mutual contact surfaces of the upper support block 130 and the lower support block 140 are in contact with each other, The voltage measurement cell terminals 160 formed on the upper support block 130 and the lower support block 140 are formed to be electrically connected to each other adjacent to each other as described above.

A first contact portion 161 for exposing the voltage measurement cell terminal 160 is formed on the first side surface S1 of the upper support block 130 and the lower support block 140 and a second contact portion 161 for exposing the voltage measurement cell terminal 160 is formed on the second side surface S2. The first contact portion 161 and the second contact portion 162 are formed in such a manner that the unit cell modules 100 adjacent to each other are in contact with and connected to each other To be mutually corresponding to each other.

At this time, any one of the first contact portion 161 and the second contact portion 162 may be formed in a flat plate shape, and the other one may be formed in an elastic piece shape so as to be elastically contacted with each other. 5 and 6, the first contact portion 161 formed on the first side surface S1 is formed in the shape of an elastic piece, the second contact portion 162 formed on the second side surface S2, The first contact portion 161 and the second contact portion 162 are brought into elastic contact with each other in the process of contacting the adjacent unit cell modules 100 to each other, The first contact portion 161 and the second contact portion 162 are kept in good contact with each other according to the elastic contact structure even if the spaces between the unit cell modules 100 are generated. Therefore, the function of the voltage measurement cell terminal 160 for the battery cell 101 as described above can be stably performed.

7 is a perspective view schematically showing an assembled shape of an expandable battery cell module according to another embodiment of the present invention.

In the above description, a plurality of unit cell modules 100 are coupled to only one side of the anode connection electrode 200 and the cathode connection electrode 300 as shown in FIG. 1. However, 7, a plurality of unit cell modules 100 may be coupled to both sides of the expandable battery cell module on the basis of the positive electrode connection electrode 200 and the negative electrode connection electrode 300.

In this case, the cathode terminal 110 and the anode terminal 120 formed in each unit cell module 100 are preferably arranged to be shifted from each other along the vertical direction as shown in FIGS. 1, 2, and 7, Even if the unit cell module 100 is coupled symmetrically with respect to the anode connection electrode 200 and the cathode connection electrode 300, the unit cell modules 100 can be smoothly coupled without interference between the left and right unit cell modules 100, 100), it is not necessary to separately manufacture and manage them, so that they can be used more conveniently.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

100: unit cell module 101: battery cell
110: positive electrode terminal 120: negative electrode terminal
130: Upper support block 131: Coupling hole
132: engaging projection 140: lower supporting block
150: connection terminal 160: voltage measurement cell terminal
200: anode connection electrode 300: cathode connection electrode

Claims (8)

A plurality of unit cell modules having a plurality of battery cells connected in series and having positive and negative terminals respectively connected to the plurality of battery cells at one side; And
A positive electrode connection electrode and a negative electrode connection electrode, which are formed such that a positive terminal and a negative terminal of the unit cell module are removably contact-
Wherein the positive electrode connection electrode and the negative electrode connection electrode are elongated in one direction and a plurality of the unit cell modules are arranged in series along the longitudinal direction of the positive electrode connection electrode and the negative electrode connection electrode, And the cathode connection terminal is detachably contacted with the anode connection electrode and the cathode connection electrode in such a manner that the anode terminal is coupled to the cathode connection electrode.
The method according to claim 1,
The unit cell module
The upper and lower support blocks, which are disposed at the upper and lower ends of the battery cell, respectively,
Wherein the positive terminal and the negative terminal are respectively protruded from one end of the upper support block and the lower support block, and a plurality of battery cells are formed in the upper support block and the lower support block from the positive terminal to the negative terminal And a connection terminal for connecting the battery cells in series so as to be serially connected.
3. The method of claim 2,
Wherein the anode connection electrode and the cathode connection electrode are formed in a plate shape elongated in one direction,
Wherein the positive electrode terminal and the negative electrode terminal of the unit cell module are inserted into the positive electrode connection electrode and the negative electrode connection electrode, respectively, in a direction perpendicular to the longitudinal direction so as to be elastically contacted with each other.
3. The method of claim 2,
Wherein the unit cell module is formed such that unit cell modules adjacent to each other along the longitudinal direction of the anode connection electrode and the cathode connection electrode are removably coupled to each other.
5. The method of claim 4,
A coupling groove is formed at one side of at least one of the upper support block and the lower support block of the unit cell module and a coupling protrusion is formed at the other side of the unit cell module at a position corresponding to the coupling groove to be inserted into the coupling groove, And the unit cell modules adjacent to each other by the coupling groove and the coupling protrusion are detachably coupled to each other.
6. The method of claim 5,
Wherein a coupling groove extension portion extending in a direction perpendicular to a depth direction of the coupling groove is formed in a bottom surface of the coupling groove, A correspondingly shaped coupling protrusion extension is formed,
Wherein the engaging groove extension portion and the engaging protrusion extension portion are inserted and coupled as the slide member moves while mutually opposing faces of mutually adjacent unit cell modules are in contact with each other.
The method of claim 3,
Wherein the anode connection electrode and the cathode connection electrode are arranged in parallel so as to be vertically spaced apart from each other,
Wherein the positive electrode terminal and the negative electrode terminal of the unit cell module are arranged to be shifted from each other along the vertical direction and are detachably coupled to the positive electrode connection electrode and the negative electrode connection electrode, respectively.
8. The method of claim 7,
Wherein the unit cell modules are symmetrically disposed on both sides with respect to the anode connection electrode and the cathode connection electrode.

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