WO2016093539A1

WO2016093539A1 - Secondary battery module and secondary battery pack using same

Info

Publication number: WO2016093539A1
Application number: PCT/KR2015/012991
Authority: WO
Inventors: 홍지준; 고성태; 김형중; 정충연
Original assignee: 주식회사 코캄
Priority date: 2014-12-12
Filing date: 2015-12-01
Publication date: 2016-06-16
Also published as: KR20160071945A

Abstract

The present invention relates to a secondary battery module comprising: a cartridge assembly having a plurality of stacked cartridges, each cartridge storing one or more cells so as to be electrically connected; a pair of covers coupled to the ends of the cartridge assembly; and a plurality of supports arranged so as to be distanced from the cartridge assembly and disposed in between the pair of covers.

Description

Secondary Battery Module and Secondary Battery Pack Using Same

The present invention relates to a secondary battery module and a secondary battery pack using the same, and more particularly, to a secondary battery module and a secondary battery pack that can be used in a special place of a special structure such as an underwater vehicle such as a submarine. .

This application claims priority based on Korean Patent Application No. 10-2014-0179773, filed December 12, 2014, and all the contents disclosed in the specification and drawings of those applications are incorporated in this application.

In general, research and development activities for secondary batteries capable of charging and discharging, for example, lithium ion / polymer secondary batteries, have been developed for energy sources or auxiliary power devices of wireless mobile devices. The focus was on secondary batteries.

However, in recent years, development and commercialization of power sources or various types of energy storage systems (ESSs) of electric vehicles or hybrid electric vehicles (hereinafter, collectively referred to as 'electric vehicles') requiring high output and large capacity are actively progressing. have.

The lithium secondary battery mainly prefers a pouch type secondary battery to reduce weight, and in order to increase capacity, a secondary battery module in which a plurality of cells are electrically connected or a secondary battery pack in which a plurality of secondary battery modules are electrically connected. Used.

The secondary battery modules known so far can accommodate each unit cell (a basic secondary battery in which an electrode assembly is stored together with an electrolyte in a pouch-shaped case and function as a power source). The cell cartridges are electrically connected to each other. However, since each secondary battery cell is not stably stored in the cell cartridge, when an impact is applied to the secondary battery module when the secondary battery module is assembled or when the secondary battery module is used, flow due to a gap between the cell cartridge and the cell may occur. Many problems have arisen in maintaining the stability of a battery module, such as damage to the pouch of a cell. In addition, there is a need for a structural design for a cell cartridge that can support each cell stably without increasing the volume of the secondary battery module when connecting a plurality of cells, when manufacturing the secondary battery module, the connection between the cell cartridges There is a growing research activity on (eg automatic linkage) methods.

In addition, the cells for secondary batteries known to date are each housed in one cartridge, and a method of assembling the secondary battery modules by stacking the cartridges stored in such a manner, that is, the secondary battery module is a "one-cell one-cell cartridge". "one cartridge)" structure is all, because a cartridge having a certain height or width necessarily required for one cell, there was a limit to the volume or volume of the secondary battery module.

In general, underwater vehicles can be divided into submarines, submersibles and semi-submersibles depending on the amount of drainage and the type of submersion. A submarine is a vessel that can be submerged with a torpedo tube with a tonnage of 300 tons or more, and a submersible can be defined as a vessel capable of submerging with or without a torpedo tube. . Semi-Submersible craft are small submersible vessels that cannot be submerged due to their hull structure and whose upper part is exposed to water.

Submarines are classified into nuclear submarines and diesel submarines based on propulsion engines. First, atomic-powered submarines (nuclear powered submarines) are submarines equipped with reactors capable of cascading nuclear fuels as a driving engine. Since they do not require oxygen to drive power sources, they use a small amount of nuclear fuel for a long time. Has the advantage of operating. In other words, nuclear submarines use enriched uranium as a fuel, so oxygen supply is unnecessary, so there is no restriction on the subsea force, and the propulsion engine used for subsea navigation can also be used during subsea navigation. ), It is faster to go underwater than when sailing. In addition, nuclear submarines are not affected by weather or sea conditions at sea, so they can fly freely under stormy oceans or extreme icebergs, and can even travel around the earth with a single fuel supply. have.

On the other hand, the diesel submarine charges the energy storage device by operating the diesel engine, and operates the driving engine using the charged energy storage device, compared to the nuclear submarine has a disadvantage in terms of stealth time, and has a low propulsion speed. . In addition, the diesel submarine has a disadvantage that the battery is discharged at a moment when the high-speed navigation about 20 knots underwater. In particular, since the diesel submarine according to the prior art operates the engine while the snorkel is exposed to the sea to charge the battery, the exhaust and snorkel wake of the engine remaining at sea may be the target of the infrared detection sensor of the sub-submarine instrument. do. However, diesel submarines are superior to nuclear submarines in terms of quietness because they generate less noise than submerged nuclear submarines.

In addition, the underwater vehicle may be classified into a nuclear propulsion underwater vehicle and a conventional propulsion underwater vehicle according to the propulsion method. Recently, the Air Independent Propulsion (AIP) method, which does not require air that can be operated by conventional propulsion underwater vehicle and hybrid concept, is also being actively studied. AIP schemes include closed cycle diesel propulsion, fuel cell propulsion, stirling engine propulsion, and closed cycle turbine propulsion.

As such, variously developed propulsion methods for underwater vehicles are directly connected to an engine that generates rotational power, and are not directly driven, but produce electricity with rotational power. We choose to rotate by pushing. Thus, underwater mobiles typically have an energy storage device for charging electricity. The lead-acid battery whose safety has been verified is mainly used for the energy storage device for underwater vehicles. However, in lead-acid batteries, electrochemical reactions are performed using lead peroxide as the positive electrode and general lead as the negative electrode, and diluted sulfuric acid as the electrolyte. Therefore, an air conditioning fan and a hydrogen remover are used to remove hydrogen gas inevitably generated during the charging process. need. In addition, the lead acid battery has various accessory facilities such as a fresh water cooling system for removing heat generated from the pole, and a stirring device for stirring sulfuric acid electrolyte solution using compressed air to prevent a decrease in charging efficiency due to the difference in concentration of sulfuric acid electrolyte solution. There is a problem that is required.

As far as is known, there has been no energy storage device for underwater vehicles using lithium polymer / ion secondary batteries.

According to an aspect of the present invention, an object of the present invention is to provide an energy storage device for underwater moving objects using a lithium ion / polymer secondary battery.

According to another aspect of the present invention, it is an object of the present invention to provide a secondary battery module and a secondary battery pack having a structure that can be loaded / unloaded in a special manner in a special place of an underwater vehicle such as a submarine.

In order to solve the above problems, a secondary battery module according to a preferred embodiment of the present invention, a cartridge assembly in which a plurality of cartridges are stacked so that at least one or more cells are electrically connected; A pair of covers respectively coupled to both ends of the cartridge assembly; And a plurality of supports disposed spaced apart from the cartridge assembly and installed between the pair of covers.

Preferably, each cover comprises a substantially rectangular shaped cover plate and support couplings extending from four vertices of the cover plate; Each support is coupled substantially perpendicular to the corresponding support engagement.

Preferably, the secondary battery module further includes a loading member provided on any one cover of the pair of covers to be selectively coupled to the loader.

Preferably, each cover comprises a substantially rectangular shaped cover plate and support couplings extending from four vertices of the cover plate; The loading member has four loading blocks that are coupled substantially perpendicularly to the corresponding support coupling portion.

Preferably, each loading block has a loader insert into which the end of the loader can be inserted.

Preferably, the loader insert includes threads formed on the inner circumferential surface.

Preferably, any one cover, the loading member, and each support are integrally fastened.

A secondary battery module according to another exemplary embodiment of the present invention for achieving the above object is a pair of each coupled to both ends of the cartridge assembly stacked cartridges so that at least one or more cells are electrically connected At least two submodules each having a cover and a plurality of supports installed between the pair of covers to be disposed in parallel with the cartridge assembly; And a plurality of spacers respectively interposed between adjacent covers of opposing submodules so as to separate adjacent submodules by a predetermined interval.

Preferably, the corresponding supports, covers and spacers of adjacent submodules are integrally fastened.

Preferably, the secondary battery module includes a loading member provided on a cover of one end of any one sub module.

Preferably, each cover of each submodule comprises a substantially rectangular shaped cover plate and support couplings extending from four vertices of the cover plate; The loading member has four loading blocks that are coupled substantially perpendicularly to the corresponding support coupling portion.

Preferably, the cover is in contact with the loading member is in contact with each corresponding support is integrally fastened.

The secondary battery module according to another preferred embodiment of the present invention for achieving the above object is any one of a pair of covers each coupled to both ends of the cartridge assembly is a cartridge containing at least one or more cells are stacked It is provided with a loading member provided in one cover.

A secondary battery pack according to an exemplary embodiment of the present invention for achieving the above object is the above-described secondary battery module; And a container surrounding the secondary battery module.

The container includes a buffer member surrounding at least a portion of the bottom or side of the secondary battery module.

According to another aspect of the present invention, the above-described secondary battery pack may be used as a power source of any one of an electric vehicle, a hybrid-electric vehicle, a plug-in hybrid vehicle, a power storage device, or an underwater vehicle.

Secondary battery modules and secondary battery packs according to exemplary embodiments of the present invention are as follows.

First, for example, by supporting the secondary battery module using a plurality of supports, it is possible to completely protect the module from external shock.

Secondly, by attaching a loading member such as a lifting ring to the module, it is possible to stably and easily implement a pulling operation into the enclosure, such as the lifting (loading / unloading) and the submarine of the secondary battery module.

Third, by installing the loading member on the support, it is possible to prevent unnecessary external force is applied to the pack structure when loading / unloading the secondary battery pack using the loader.

Fourth, by combining the independently separated secondary battery module in one frame structure has an effect that can more stably protect the secondary battery module and / or secondary battery pack from external shock and vibration.

The present invention will be described in detail with reference to the following drawings, but these drawings show preferred exemplary embodiments of the present invention, and thus the technical spirit of the present invention should not be construed as being limited to the drawings.

1 is a combined perspective view of a rechargeable battery module according to an exemplary embodiment of the present invention.

2 is an exploded perspective view of FIG. 1.

3 is a cross-sectional view of a portion A of FIG. 1.

4 is a cross-sectional view of the portion B of FIG.

5 is a cross-sectional view of the portion C of FIG.

6 is an enlarged perspective view of a portion A of FIG. 1.

7 is a schematic exploded perspective view of a rechargeable battery pack according to an exemplary embodiment of the present invention.

8 is a configuration diagram schematically showing a configuration of a cell cartridge according to a preferred exemplary embodiment of the present invention.

Fig. 9 is an exploded perspective view of a cell cartridge and a pair of cells according to another exemplary embodiment of the present invention.

Fig. 10 is a partial sectional view showing a state in which a cell cartridge and a pair of cells are coupled according to another exemplary embodiment of the present invention.

11 is a partial cross-sectional view of a rechargeable battery module according to an exemplary embodiment of the present invention.

12 is an enlarged excerpt perspective view of FIG. 10.

Fig. 13 is an exploded perspective view of a cell cartridge and a pair of cells according to another preferred exemplary embodiment of the present invention.

Fig. 14 is a partial cross-sectional view showing a state in which a cell cartridge and a pair of cells are coupled according to another preferred exemplary embodiment of the present invention.

FIG. 15 is an enlarged perspective view of FIG. 13.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the description and claims of the invention should not be construed as being limited to ordinary or dictionary meanings, and the inventors should use the concept of terms in order to explain their invention in the best way. On the basis of the principle that can be appropriately defined should be interpreted as meanings and concepts corresponding to the technical spirit of the present invention. Accordingly, the components shown in the embodiments and drawings described herein are merely exemplary exemplary embodiments of the present invention and do not represent all of the technical ideas of the present invention, and therefore, they may be replaced at the time of the present application. It should be understood that there may be various equivalents and variations in the range.

1 is a combined perspective view of a rechargeable battery module according to an exemplary embodiment of the present invention, Figure 2 is an exploded perspective view of Figure 1, Figure 3 is a cross-sectional view of the portion A of Figure 1, Figure 4 It is sectional drawing of the B site | part of 1, FIG. 5 is sectional drawing of the C site | part of FIG. 1, and FIG. 6 is an enlarged perspective view of the A site | part of FIG.

1 to 6, the rechargeable battery module 300 according to the present embodiment includes a cartridge assembly 101 in which a plurality of cartridges 100 are stacked so that at least one or more cells are electrically connected to each other. A pair of upper cover 312 and lower cover 314 coupled to both ends (upper and lower end) of the cartridge assembly 101, and spaced apart from the cartridge assembly 101, the upper and lower covers 312 Five supports 320 are installed between 314.

In addition, in the module 300 according to the present exemplary embodiment, the first submodule 302 and the second submodule 304 are connected through spacers 330 to form a single module, and the first submodule 302 An example in which the loading member 340 is installed on the upper cover 312 of FIG. According to the modified embodiments, those skilled in the art will understand that the secondary battery module 300 may be composed of only one sub module, and one or more sub modules may constitute the final module without the loading member 340.

The cartridge assembly 101 is a structure in which a plurality of cartridges are stacked in a state in which each cell is accommodated in each cell cartridge 100 having substantially the same shape as each

cover

312 and 314. Such as the cartridge assembly disclosed in Korean Patent No. 10-1393436, which is incorporated by reference in its entirety and is filed on September 27, 2012 and filed on May 2. Those skilled in the art will understand that any type of cartridge can be included if the cartridges are stacked in a state where the secondary battery cell is accommodated in a predetermined cartridge.

The upper cover 312 and the lower cover 314 are in contact with both ends (top and bottom in the drawing) of the cartridge assembly 101, respectively, and the cover fastening hole 316 and the cartridge assembly formed in the

covers

312 and 314. For example, through the fastening hole provided in the 101, it is coupled to the cartridge assembly 101 by a fastening member 190 has a function to protect the cartridge assembly (101). According to the modified embodiment, those skilled in the art will understand that the upper cover 312 and the lower cover 314 may be installed at both ends of the cartridge assembly 101 irrespective of the fastening member 190 described above.

The upper cover 312 and the lower cover 314 each comprise a substantially rectangular shaped cover plate 311 and four support joints 313 extending from the four vertices of the cover plate 311 and the long side sides. do. The support coupling portions 313 of the upper cover 312 are bent downward in the drawings, and the support coupling portions 313 of the lower cover 314 are bent upward.

Each of the supports 320 is fastened between the upper cover 312 and the lower cover 314 to protect the cartridge assembly 101 disposed between the upper cover 312 and the lower cover 314 and the secondary battery. To protect the cartridge assembly 101 against shocks or vibrations applied to the module 300, in particular, against shocks or vibrations in the stacking direction (eg, vertical direction) of the cartridges of the cartridge assembly 101. Each support 320 extends in the longitudinal direction and is vertically outwardly supported by the support body 326, which forms a channel 324 by wings 322 formed on both sides, and both longitudinal ends of the support body 326. It is provided with a cover engaging portion 328 which can be extended and in contact with the aforementioned support engaging portion 313. Each of the supports 320 is made of sufficient steel to withstand external forces. The channel 324 of the support 320 is a place where a buffer member (not shown) is positioned when the secondary battery module 300 is accommodated in the container 410 to form a secondary battery pack. Prevents movement of the buffer member.

As described above, the secondary battery module 300 according to the present exemplary embodiment includes a plurality of opposing

submodules

302 and 304 so as to be spaced apart from two

adjacent submodules

302 and 304 by a predetermined interval. Five spacers 330 are interposed between

adjacent covers

312 and 314.

The spacers 330 alleviate the longitudinal external impacts applied to any one of the sub-modules and at the same time mitigate the external impacts by transmitting the external shocks through the supports 320 rather than directly to the cartridge assembly 101. It is for. That is, each spacer 330 is interposed between the support coupling portion 313 of the lower cover 314 of the first submodule 302 and the support coupling portion 313 of the upper cover 312 of the second submodule. Bolts and nuts together with the cover coupling portion 328 of the support 320 of the first submodule 302 and the cover coupling portion 328 of the support 320 of the second submodule 304. It is combined integrally by The spacer 330 preferably has sufficient rigidity, impact resistance and elasticity.

As described above, the secondary battery module 300 according to the present embodiment has a loading member 340 installed on the upper cover 312 of the upper first sub module 302 to be selectively coupled to the loader 350. It is provided.

The loading member 340 includes four loading blocks 342, and each of the loading blocks 342 is located at the support coupling part 313 of the four vertex portions of the upper cover 312 and corresponding support ( It is preferable to be bolted integrally with the cover engaging portion 328 of 320. The loading member 340 may be installed at another position of the upper cover 312, but is installed to be substantially in line with the support 320, thereby loading / loading the secondary battery module 300 using the loader 350. External force or load may be prevented from being transmitted to the cartridge assembly 101 during the unloading process.

Each loading block 342 includes a loader inserting portion 344 having a thread formed on an inner circumferential surface thereof so that the end of the loader 350 may be inserted into and fastened. According to the modified embodiment, the shape, structure, position, and the like of the loading block 342 and the loader inserting portion 344 may depend on the structure, operation position, and method of the loader 350 for lifting the secondary battery module 300. It will be understood by those skilled in the art that various modifications can be made.

Referring to FIG. 7, the secondary battery module 300 according to the above-described embodiments may be accommodated in a container 410 having a substantially rectangular parallelepiped shape to correspond to the external shape of the connected or assembled module. The secondary battery pack 400 may be completed by interposing a buffer member for protecting the module 300 from external impact on the bottom and sidewalls of the 410. Here, the buffer member may be accommodated in the channel 324 provided on the outer surface of the support 320 of the secondary battery module 300 and the channel provided in each cartridge of the cartridge assembly 101.

The secondary battery pack 400 may also be used as a power source for an electric vehicle, a hybrid-electric vehicle, a plug-in hybrid vehicle, a power storage device, and the like, but according to an exemplary embodiment of the present invention, for example, a submarine and It is preferably used as a power source for the same underwater mobile. Because the submarine has a special internal structure, the installation position of the secondary battery pack is not only limited to the battery room in the lower part of the hull, it is arranged in a dense form similar to the structure of the lead acid battery, and the installation, maintenance and repair This is because a loading / unloading operation method for installing, maintaining, and repairing a secondary battery pack is extremely limited because a conventional loader must be used. That is, the secondary battery pack loading / unloading operation in the submarine hull can only proceed in a limited movement direction, unlike the open space secondary battery having a special structure of the loading member, such as the preferred embodiments of the present invention The use of modules and / or secondary battery packs in submarines can increase work efficiency.

8 is a configuration diagram schematically showing a configuration of a cell cartridge according to a preferred exemplary embodiment of the present invention. The cell cartridge of FIG. 8 may be used in the secondary battery module described with reference to FIGS. 1 to 6.

Referring to FIG. 8, the cell cartridge 10 according to the present embodiment has a pair of

cells

2 and 4 symmetrically on both sides when the secondary battery module is configured using a plurality of cells electrically connected to each other. It is a double-sided cartridge that can be stored. The double-sided cell cartridge 10 according to the present embodiment is opposed to the main body 14 having the central plate 12, the first accommodating portion 11 formed on the first face 16, and the first face 16. And a second accommodating portion 13 formed on the second surface 18.

The main body 14 is injection molded using plastic and has a substantially rectangular shape to correspond to the shape of the

cells

2 and 4 to be received. Therefore, those skilled in the art will fully understand that the shape of the double-sided cell cartridge 10, that is, the main body 14, may be modified according to the shape of the cell to be stored. The center plate 12 is a portion in which one surface of the pair of

cells

2 and 4 that are oppositely or symmetrically received is in contact with each other to form a center in the width direction of the double-sided cell cartridge 10. The detailed configuration of the main body 14 will be described in more detail in the following embodiments.

The first surface 16 of the main body 14 refers to the width direction of any one of the main body 14 with respect to the center plate 12 and the second surface 18 is the surface opposite to the first surface 16. to be. The first accommodating part 11 is a space formed in the width direction toward the center plate 12 from the first surface 16 so that the first cell 2 can be accommodated. It is a space formed in the width direction toward the center plate 12 from the second surface 18 so that the two cells 4 can be accommodated.

The

cells

2 and 4 according to the present embodiment are lithium ion and / or polymer secondary batteries, the details of which will be described in more detail below. In addition, according to the present embodiment, since a single double-sided cell cartridge 10 can accommodate two

cells

2 and 4 compactly, a module finally assembled as compared to a conventional secondary battery module and / or cartridge. Since the size of the battery can be reduced, the material cost can be reduced and more cells can be stored in the same size, thereby increasing space and power efficiency.

9 is an exploded perspective view of a cell cartridge and a pair of cells according to another exemplary embodiment of the present invention, and FIG. 10 is a cell cartridge and a pair of cells coupled according to another exemplary embodiment of the present invention. 11 is a partial cross-sectional view showing a state, and FIG. 11 is a partial cross-sectional view of a rechargeable battery module according to an exemplary embodiment of the present invention. The same components as the reference numerals described in FIG. 8 are the same members with the same functions.

9 to 11, the double-sided cell cartridge 100 has a substantially rectangular parallelepiped shape and a first accommodating portion 111 and a second accommodating portion 113 are formed on both sides thereof to form a first cell 2. ) And a second cell (4), the main body 110 having a central plate 112 and four edges (114).

The four edges 114 protrude vertically from the center plate 112, so that the first cell 2 and the second cell 4 accommodated in the first accommodating part 111 and the second accommodating part 113, respectively. It will fix the position of. The upper edge 4 is provided with terminal fixing parts 115 to fix the electrode terminals 6 of the

cells

2 and 4. The shape, structure, function, etc. of the terminal fixing part 115 will be fully understood by those skilled in the art.

The double-sided cell cartridge 100 according to the present embodiment includes a plurality of first insertion protrusions 116 and first insertion holes 118 provided at the edge 114 of the first surface 112 of the main body 110. And insertion holes and insertion protrusions provided at the edges 114 of the second surface 122 of the main body 110, respectively, and provided at the edges 114 of the first surface 112 of the neighboring cell cartridge 100. Second insertion protrusions (not shown) and second insertion holes (not shown) may be provided, respectively. That is, the first surface 112 of the main body 100 is provided with insertion protrusions and insertion holes, respectively, and the insertion protrusions and insertion holes which are respectively coupled to the protrusions and holes are formed at symmetrical or opposite positions of the second surface 122. do. Accordingly, when the two-sided cell cartridges 100 containing the cells are sequentially contacted and stacked to form the

secondary battery module

102 and 300, the neighboring parts are coupled by an insertion configuration and an insertion configuration that are primarily matched or matched. The double-sided cell cartridge 100 is a structure that is temporarily coupled to each other while fixing the position. Meanwhile, the size, formation position, and function of the first and second insertion protrusions 116 and the first and second insertion holes 118 may be sufficiently changed by those skilled in the art according to the structure of the secondary battery module required. It should be noted. The aforementioned protrusions and holes are preferably formed integrally with the main body 110 during injection molding of the main body 110.

On the other hand, the double-sided cell cartridge 100 according to the present embodiment has a plurality of fastening holes 117 penetrating the main body 110, in particular, the edge portion, more preferably, the edge 114 is formed a rectangular vertex. Is formed. A fastening hole in a state in which a plurality of double-sided cell cartridges 100 in which a pair of

cells

2 and 4 are accommodated are covered with covers (not shown) at both ends of a cartridge assembly formed by being coupled to each other as described above. As the second battery module is configured to penetrate and fasten the fastening member 170 through the holes 117, the shape, structure, and function of the fastening hole 117 will be fully understood by those skilled in the art.

The double-sided cell cartridge 100 according to the present exemplary embodiment may include a first cushioning member disposed in contact with the edge 114 of the main body 110 and the edge portions of the first and second

accommodating portions

111 and 113. 130). In the first cushioning member 130, the first cell 2 and the second cell 4 are accommodated in the first accommodating part 111 and the second accommodating part 113, respectively. When used, it is for protecting the

cells

2, 4 against external shock and / or vibration. The first cushion member 130 is made of a material having impact resistance and vibration resistance, such as a thermoplastic elastomer, an elastic fiber, a foam, a plastomer, etc., in addition to a high molecular material, a vulcanizable natural rubber, and a synthetic rubber that exhibit elasticity at room temperature. Preferably, the first cushion member 130 may be separately manufactured and attached to the main body 110, but, for example, injection molding is performed simultaneously with the main body 110, such as double injection.

The double-sided cell cartridge 100 includes a second cushioning member interposed between the sealing portion 5 of each cell edge of the first cell 2 and the second cell 4 and the edge 114 of the body 110. 140. The second cushion member 140 is made of the same material as the first cushion member 130 described above. The second cushion member 140 is for protecting the cell against external shock or vibration similarly to the first cushion member 130.

The

cells

2 and 4 accommodated in the first accommodating part 111 and the second accommodating part 113 of the double-sided cell cartridge 100 are lithium ion / polymer secondary batteries capable of charging and discharging, and are positive electrode plates / separators. Stacked or folded electrode assemblies are stacked or folded so that the cathode plates are positioned sequentially, and are sealed inside the pouch case 8 together with the electrolyte or electrolyte, and the anode tabs of the anode plates of the electrode assembly and the cathode tabs of the cathode plates are The positive and negative terminals 6, which are electrically and physically connected, protrude out of the pouch-shaped case 8. Here, the pouch-shaped case 8 may be composed of a case body in which the electrode assembly is accommodated and a cover covering the case body. The case body and the case cover may be used by folding a single pouch, but a structure that is separately coupled to each other is preferable. In addition, the case body and the cover includes an outer resin layer, a barrier metal layer, and an inner resin layer, and four edges are fused as four edges are sealed when the electrode assembly and the electrolyte or the electrolyte are sealed in the housing part of the case body. Sealing portions 5 are formed. That is, when viewed from the front, the sealing portion 5 is formed on each of the four edges of the rectangular electrode assembly. Meanwhile, sizes, structures, materials, and the like of the electrode assembly, the pouch case 8, and the electrolyte are well known to those skilled in the art to which the present invention pertains, and thus, detailed descriptions of these parts will be omitted. Let's do it.

The double-sided cell cartridge 100 according to the present embodiment is a terminal of the main body 110 to insulate the electrode terminal 6 of the first cell 2 and the electrode terminal 6 of the second cell 4, respectively. The first insulating cover 150 and the second insulating cover 160 are respectively coupled to the fixing unit 115. As shown in FIG. 4, the first insulating cover 150 and the second insulating cover 160 are each cell when the double-sided cell cartridges 100 are stacked to form the secondary battery module 102. It is preferably made of insulating material to insulate the neighboring electrode terminals 6 between the cartridge 100.

Referring to FIG. 11, which is an enlarged and extracted perspective view of FIG. 10, the first and second

insulating covers

150 and 160 are coupled to

hooks

152 and 162 provided at the terminal fixing part 115 of the main body 110. Coupling

grooves

154 and 164 are provided. Accordingly, the first and second

insulating covers

150 and 160 may include the first cell 111 and the second number of the first cell 2 and the second cell 4 of the double-sided cell cartridge 100. The

hooks

152 and 162 and the

coupling grooves

154 and 164 may be fixed to the main body 110 in the state accommodated in the payment part 113.

FIG. 13 is an exploded perspective view of a cell cartridge and a pair of cells according to another preferred exemplary embodiment of the present invention, and FIG. 14 is a cell cartridge and a pair of cells according to another preferred exemplary embodiment of the present invention. It is a partial sectional drawing which shows the combined state, and FIG. 15 is a partial enlarged view of FIG. The same components as those described in FIGS. 9 to 12 are the same members having the same functions.

13 to 15, the double-sided cell cartridge 200 according to the present exemplary embodiment includes an opening 119 penetrating through the central plate 112 of the main body 110 and is installed in the opening 119. The same as in the above-described embodiment except that the heater member 170 is provided.

The heater member 170 is for temporarily generating heat around the

cells

2 and 4 when the secondary battery module and / or the secondary battery pack included in the double-sided cell cartridge 200 are used in a low temperature environment. The heating pad may include a heating pad, a heating sheet, or a heating line. In this embodiment, a cable 172 for selectively applying electric power to the heater member 170 is provided to connect the heater member 172 to a separate power source.

In alternative embodiments, the heater member 170 may be shaped to be disposed within the central plate 112 of the body 110, for example by insert injection. In this case, the cable 172 is also preferably molded integrally with the main body 110 by insert injection.

As described above, although the present invention has been described by means of limited embodiments and drawings, the present invention is not limited thereto and is intended by those skilled in the art to which the present invention pertains. Various modifications and variations are possible, of course, within the scope of equivalents of the claims to be described.

Claims

A cartridge assembly comprising a plurality of cartridges stacked so that at least one or more cells are electrically connected;

A pair of covers respectively coupled to both ends of the cartridge assembly; And

A secondary battery module comprising a plurality of supports disposed spaced apart from the cartridge assembly, and installed between a pair of covers.
The method according to claim 1,

Each cover comprises a cover plate substantially the same shape as the corresponding cell or cartridge and support couplings extending from four vertices of the cover plate;

Each of the supports is a secondary battery module, characterized in that coupled to the corresponding support coupling substantially perpendicularly.
The method according to claim 1 or 2,

A secondary battery further comprising a loading member provided on any one of a pair of covers to be selectively coupled to a loader (loader) configured to be movable to load or unload a secondary battery module module.
The method according to any one of claims 1 to 3,

Each cover comprises a cover plate of the same shape as a cell or cartridge and support couplings extending from four vertices of the cover plate;

The loading member is a secondary battery module, characterized in that it has four loading blocks that are coupled substantially perpendicularly to the corresponding support coupling portion.
The method according to claim 4,

Each of the loading blocks is a secondary battery module, characterized in that it comprises a loader insert that can be inserted into the end of the loader.
The method according to claim 5,

The secondary battery module, characterized in that the loader insert comprises a thread formed on the inner peripheral surface.
The method according to any one of claims 1 to 3,

Any one cover, the loading member, and each support is a secondary battery module, characterized in that fastened integrally.
A pair of covers each coupled to both ends of the stacked cartridge assembly such that at least one or more cells are electrically connected, and a plurality of covers installed between the pair of covers to be disposed side by side with the cartridge assembly. At least two sub modules each having supports; And

And a plurality of spacers interposed between adjacent covers of opposing submodules so as to separate adjacent submodules by a predetermined interval.
The method according to claim 8,

The corresponding support, the cover, and the spacer of the sub-modules adjacent to each other, the secondary battery module, characterized in that integrally fastened.
The method according to claim 8 or 9,

A secondary battery module comprising a loading member provided on a cover of one end of any one submodule.
The method according to any one of claims 8 to 10,

Each cover of each submodule includes a cover plate of substantially the same shape as the cell or cartridge and support couplings extending from four vertices of the cover plate;

The loading member is a secondary battery module, characterized in that it has four loading blocks that are coupled substantially perpendicularly to the corresponding support coupling portion.
The method according to claim 11,

Each of the loading blocks includes a loader insert portion into which an end of the loader is configured to be movable to load or unload the secondary battery module.
The method according to claim 12,

The secondary battery module, characterized in that the loader insert comprises a thread formed on the inner peripheral surface.
The method according to any one of claims 8 to 13,

The cover which is in contact with the loading member is in contact with the respective support corresponding to the secondary battery module, characterized in that integrally fastened.
A secondary battery module comprising a loading member provided on one of a pair of covers, each of which is coupled to both ends of a cartridge assembly in which at least one or more cells are stored, the cartridges being stacked.
The method according to claim 15,

Each cover comprises a cover plate of the same shape as a cell or cartridge and support couplings extending from four vertices of the cover plate;

The loading member is a secondary battery module, characterized in that it has four loading blocks that are coupled substantially perpendicularly to the corresponding support coupling portion.
The method according to claim 16,

Each of the loading blocks includes a loader insert portion into which an end of the loader is configured to be movable to load or unload the secondary battery module.
The method according to claim 17,

The secondary battery module, characterized in that the loader insert comprises a thread formed on the inner peripheral surface.
The secondary battery module of any one of claims 1 to 18; And

A secondary battery pack comprising a container surrounding the secondary battery module.
An apparatus characterized by using the secondary battery pack of claim 19 as a power source.
The method of claim 20,

The device is any one of an electric vehicle, a hybrid-electric vehicle, a plug-in hybrid vehicle, a power storage device or an underwater vehicle.