CN113169393A

CN113169393A - Pouch type battery cartridge and pouch type battery pack including the same

Info

Publication number: CN113169393A
Application number: CN201980077711.XA
Authority: CN
Inventors: 黄胜载
Original assignee: Amogreentech Co Ltd
Current assignee: Amogreentech Co Ltd
Priority date: 2018-11-27
Filing date: 2019-11-22
Publication date: 2021-07-23
Also published as: KR20200063059A

Abstract

The invention provides a pouch type battery cartridge. A pouch-type battery cartridge according to an exemplary embodiment of the present invention includes: a cartridge body forming a receiving space with both open sides for receiving at least one pouch type battery, and including a first guide member facing a side surface of the pouch type battery received in the receiving space; a heat radiation plate combined with the box body to cover the open surface of the accommodating space; and a pair of bus bars coupled to one side of the cartridge body to be connected to terminals of the pouch type battery.

Description

Pouch type battery cartridge and pouch type battery pack including the same

Technical Field

The present invention relates to a battery cartridge and a pouch type battery pack including the same.

Background

The battery is used as an energy supply source for various products such as electric vehicles, unmanned aerial vehicles, cellular phones, notebook computers, digital cameras, and the like. As the battery as described above, a lithium secondary battery having a high energy density and capable of being driven at a high output is used.

The lithium secondary battery has the following advantages: the battery can be prepared in a thin pouch shape, and a plurality of pouch-shaped batteries can be connected, whereby a high-capacity battery can be embodied in a narrow area.

In general, such a pouch-type battery is in a form in which an electrode assembly is packaged inside an external material formed into a sheet from aluminum and a polymer resin, and therefore, mechanical rigidity is not high. Therefore, by configuring a battery module including a plurality of pouch type batteries using a cartridge, the batteries are protected from external impact and the plurality of pouch type batteries are easily stacked.

However, when a plurality of pouch type batteries are stacked and connected, the capacity increases, but the heat generation temperature of the batteries also increases, and if the heat generation temperature of the batteries is higher than an appropriate temperature, not only the performance of the batteries is degraded, but also there is a risk of explosion or combustion.

Thus, there is a need for a scheme for effectively discharging heat generated in a battery when the battery is charged or discharged.

Disclosure of Invention

Technical problem

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a pouch-type battery cartridge and a pouch-type battery pack including the same, in which: when the battery is charged or discharged, heat generated in the battery is effectively discharged.

Technical scheme

In order to solve the above-described problems, the present invention provides a pouch type battery cartridge including: a cartridge body forming a receiving space with both open sides for receiving at least one pouch type battery, and including a first guide member facing a side surface of the pouch type battery received in the receiving space; a heat radiation plate combined with the box body to cover the open surface of the accommodating space; and a pair of bus bars coupled to one side of the cartridge body to be connected to terminals of the pouch type battery.

As an exemplary embodiment, the first guide member may be formed of a plastic material having heat dissipation and insulation properties.

Also, the cartridge body may include: a second guide member disposed so as to be spaced apart from the first guide member so as to face the first guide member; and a pair of third and fourth guide members, the first and second guide members being connected at both ends thereof, and the first to fourth guide members being formed of a plastic material having heat radiation and insulation properties.

The cartridge body may include at least one elastic member protruding from one surface of the first guide member toward the receiving space, and the elastic member may contact a side surface of the pouch type battery when the pouch type battery is received in the receiving space.

The cartridge body may include at least one arrangement hole having a predetermined area and formed to penetrate the first guide member, and the elastic member may be coupled to the first guide member through the arrangement hole. In this case, the elastic member may be formed of a polymer resin including a thermally conductive filler.

Also, the present invention may include: a first plate having a plate shape and covering the open surface of the accommodating space; and a second plate extending in one direction from an end of the first plate and in surface contact with one surface of the first guide member. In this case, when the pouch type battery is accommodated in the accommodating space, the first plate may be in surface-to-surface contact with one surface of the pouch type battery.

The heat dissipation plate may be a plate-shaped metal plate. For example, the heat dissipation plate may be a metal plate including aluminum.

Also, the bus bar may include: a terminal part connected to a terminal of the pouch type battery; and an extension portion extending in one direction from an end of the terminal portion and arranged to be in contact with the first guide member.

As another example, the pouch-shaped battery case may further include a plate-shaped heat transfer sheet disposed on one surface of the heat dissipation plate to be in surface contact with the heat dissipation plate. In this case, the heat transfer sheet may be formed of a material having a relatively higher thermal conductivity than the heat dissipation plate.

For example, the heat transfer sheet may be a graphite sheet having an insulation-treated surface. For example, the heat transfer sheet may include an insulating film member attached to the graphite sheet via a plate-shaped graphite sheet and an adhesive layer so as to cover a surface of the graphite sheet.

In this case, the heat transfer sheet may include: a first portion disposed in a portion covering an open surface of the receiving space in a total area of the heat radiating plate; and a second portion extending from the first portion to cover a heat dissipating plate portion in surface-to-surface contact with the first guide member.

In another aspect, the present invention provides a pouch type battery pack including: a plurality of pouch type cartridges as described above; a plurality of pouch-shaped batteries accommodated in the accommodating space; and a mounting frame for fixing the pouch type battery cartridges stacked in one direction.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the present invention, various heat dissipation methods are applied to effectively release heat generated in the battery, thereby preventing the performance of the battery from being degraded by the heat.

Drawings

Fig. 1 is a view illustrating a pouch type battery cartridge according to the present invention.

Fig. 2 is a view of fig. 1 viewed in a different direction.

Fig. 3 is a view showing a state in which the heat radiation plate and the cassette main body are removed in fig. 2.

Fig. 4 is an exploded view of fig. 2 showing a pouch-type battery cartridge according to a first embodiment of the present invention.

Fig. 5 is a sectional view in the a-a direction of fig. 2 showing a pouch-type battery cartridge according to a first embodiment of the present invention.

Fig. 6 is a view illustrating a state in which a plurality of pouch type cartridges according to the first embodiment of the present invention are stacked in one direction.

Fig. 7 is a sectional view schematically showing the arrangement relationship between the first guide member and the cooling unit in a state where a plurality of pouch-shaped battery cartridges according to the first embodiment of the present invention are stacked in one direction.

Fig. 8 is an exploded view of fig. 2 showing a pouch-type battery cartridge according to a second embodiment of the present invention.

Fig. 9 is a sectional view in the a-a direction of fig. 2 showing a pouch-type battery cartridge according to a second embodiment of the present invention.

Fig. 10 is a schematic view illustrating a detailed structure of a heat transfer sheet applicable to a pouch type battery cartridge according to a second embodiment of the present invention.

Fig. 11 is a view illustrating a state in which a plurality of pouch type cartridges according to a second embodiment of the present invention are stacked in one direction.

Fig. 12 is a sectional view schematically showing the arrangement relationship between the first guide member and the cooling unit in a state where a plurality of pouch-shaped battery cartridges according to the second embodiment of the present invention are stacked in one direction.

Fig. 13 is a view illustrating a pouch type battery pack using pouch type cartridges according to the present invention.

Detailed Description

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains can easily carry out the present invention. The present invention can be embodied in various forms and is not limited to the embodiments described herein. In the drawings, portions that are not related to the description are omitted for the sake of clarity, and the same reference numerals are given to the same or similar components throughout the specification.

As shown in fig. 1 and 2, pouch-

type battery cartridges

100 and 200 according to an embodiment of the present invention include a cartridge body 110, a heat dissipation plate 120, and a pair of bus bars 130.

The cartridge body 110 can accommodate at least one pouch type battery 10, and can protect the pouch type battery 10 from external force. The cartridge body 110 as described above may individually support the respective pouch type batteries 10, when being applied to the battery pack 1000.

For this, as shown in fig. 4 and 8, the cartridge body 110 may be formed of a frame structure having both sides opened to receive the pouch type battery 10 while surrounding the edge of the pouch type battery 10.

That is, the cartridge body 110 may be a frame structure having a housing space S with both sides opened.

Specifically, the cartridge body 110 may include: a pair of first guide member 111 and second guide member 112 arranged to face each other and spaced apart from each other; and a pair of third and

fourth guide members

113 and 114 disposed between the first and

second guide members

111 and 112 so as to face each other and spaced apart from each other, and one end portions of the first and

second guide members

111 and 112 are connected to both end portions of the third and

fourth guide members

113 and 114, respectively.

As shown in fig. 1, the first guide member 111, the second guide member 112, the third guide member 113, and the fourth guide member 114 may be defined by virtual straight lines L1 and L2, the first guide member 111 may be a lower portion of the virtual straight line L1, the second guide member 112 may be an upper portion of the virtual straight line L2, and the third guide member 113 and the fourth guide member 114 may be portions between the virtual straight lines L1 and L2 in the magazine main body 110.

Thus, the cartridge body 110 may include a receiving space S defined by the first guide member 111, the second guide member 112, the third guide member 113, and the fourth guide member 114, and having opposite surfaces opened, and the receiving space S may receive at least one pouch battery 10.

In the present invention, the pouch type battery 10 may include: an electrode assembly in which at least one anode and one cathode are laminated with a separator interposed therebetween; and an external material in a bag shape encapsulating the electrode assembly together with an electrolyte. The pouch-shaped battery 10 may have a pair of

terminals

12a and 12b connected to the electrode assembly protruding outside the external member. Meanwhile, the pouch type battery 10 may be a flexible battery. The pouch type battery 10 as described above is well known, and thus, a detailed description will be omitted.

On the other hand, the cartridge body 110 may include at least one fastening portion 116 for fastening to other components.

For example, as shown in fig. 1, the fastening portion 116 may be a fastening hole formed to penetrate through a corner side of the cartridge body 110. Thus, as shown in fig. 6, 11 and 13, when the pouch type battery pack 1000 is constructed in a state in which the pouch type batteries 10 are stacked in one direction in a state in which the pouch type batteries 10 are accommodated in the accommodating space S according to an embodiment of the present invention, the pouch type battery cartridges 100 may be fixed to each other by a fastening member (e.g., a fastening rod 340 of fig. 13) fastened to the fastening part 116 side.

The fastening portion 116 is illustrated as penetrating through the cartridge body 110 at a corner side thereof, but the present invention is not limited thereto, and the fastening portion 116 may be formed at a flange side protruding from an edge of the cartridge body 110.

The heat dissipation plate 120 may be combined with the cartridge body 110 to cover an open surface of the receiving space S. That is, the heat dissipation plate 120 may be formed of a plate-shaped member having a predetermined area, and may be coupled to the cartridge body 110 to cover any one of the two open surfaces of the cartridge body 110.

Specifically, as shown in fig. 4, 5, 8 and 9, the heat dissipation plate 120 may include: a first plate 121 having a plate shape and covering an open surface of the receiving space S; and a second plate 122 extending in one direction from an end of the first plate 121.

In the case where the pouch type battery 10 is accommodated in the accommodating space S as described above, one surface of the first plate 121 may be in surface-to-surface contact with one surface of the pouch type battery 10 accommodated in the accommodating space S, and the second plate 122 may cover one surface of the first guide member 111.

One surface of the second plate 122 may be in direct contact with a cooling unit 20 such as a heat exchanger, a cooling chamber, or a cooling plate (see fig. 7 and 12).

In this case, the heat sink 120 may release heat generated in the pouch battery 10 to the outside.

Therefore, the heat sink 120 may be formed of a metal material having excellent thermal conductivity, thereby protecting the pouch type battery 10 from external force and rapidly discharging heat transferred from the pouch type battery 10.

For example, the heat sink 120 may be formed of a metal material including aluminum, thereby reducing weight and ensuring excellent thermal conductivity. However, the material of the heat sink 120 is not limited thereto, and any known metal material for heat dissipation may be used.

Thus, the pouch-shaped battery 10 received in the receiving space S can be supported by the cartridge body 110 and the heat dissipation plate 120, and thus deformation and damage due to external force can be prevented.

The heat generated in the pouch battery 10 is transferred to the heat sink 120 side and then rapidly released by the external air. Meanwhile, the heat transferred from the pouch type battery 10 to the heat sink 120 may be rapidly dissipated through the second plate 122 directly contacting the cooling unit 20.

Further, in the case of constructing the battery pack 1000 including a plurality of pouch type batteries 10, if the pouch

type battery cartridges

100 and 200 according to the embodiment of the present invention are used, the deformation of the pouch type batteries 10 can be prevented and the battery pack can be easily constructed.

The pair of bus bars 130 may be combined with one side of the cartridge body 110. The bus bar 130 may have a rod shape having a predetermined length, and may be electrically connected to the pouch type battery 10 accommodated in the accommodating space S.

That is, the pair of

terminals

12a and 12b of the pouch type battery 10 may be electrically connected to the pair of bus bars 130, respectively.

For example, as shown in fig. 1 to 3, the pair of busbars 130 may be respectively disposed on one surface of the third guide member 113 and the fourth guide member 114 facing each other in the cartridge body 110. However, the position of the bus bar 130 is not limited to this, and the bus bar may be disposed at an appropriate position according to the positions of the

terminals

12a and 12b of the pouch type battery 10.

In this case, when the pouch type batteries 10 are accommodated in the accommodation space S of the cartridge body 110, the pouch type batteries 10 may be connected in parallel to each other by the pair of bus bars 130.

For example, in the case where two pouch type cells 10 are received in the receiving space S of the cartridge body 110, the anode terminals of the pouch type cells 10 may be connected to the bus bar 130 disposed at one side of the third guide member 113, and the cathode terminals of the pouch type cells 10 may be connected to the bus bar 130 disposed at one side of the fourth guide member 114.

Thus, when the pouch type battery pack 1000 is constructed using the pouch

type battery cartridges

100 and 200 according to an embodiment of the present invention, the pouch type battery pack 1000 may increase the total electrostatic capacity using the plurality of pouch type batteries 10 connected in parallel with each other.

In the case described above, as shown in fig. 5 and 9, a cushioning member 160 capable of absorbing impact may be disposed between the adjacent pouch batteries 10. For example, the cushion member 160 may be an Ethylene Propylene Diene Monomer (EPDM) pad.

On the other hand, the pouch

type battery cartridges

100 and 200 according to an embodiment of the present invention may be applied to various schemes for effectively discharging heat generated when the pouch type battery 10 is charged or discharged.

As a part of the case body 110, a portion surrounding the side surface of the pouch-shaped battery 10 accommodated in the accommodation space S may be formed of a material having heat dissipation and insulation properties.

For example, the first guide member 111 may be formed of a plastic material having heat dissipation and insulation properties. Accordingly, the heat generated in the pouch battery 10 can be transmitted to the first guide member 111 side together with the heat sink 120 and then released.

The first guide member 111 may be in surface contact with the second plate 122 of the heat sink 120, and the heat sink 120 may be in direct contact with the cooling unit 20 (see fig. 7 and 12).

Accordingly, in the pouch

type battery cartridges

100 and 200 according to an embodiment of the present invention, heat generated in the pouch type battery 10 is smoothly transferred to the first guide member 111 side formed of a plastic material having heat dissipation and insulation properties, and then, can be rapidly discharged through the cooling unit 20.

In the cartridge body 110, a part or all of the second guide member 112, the third guide member 113, and the fourth guide member 114 may be formed of a plastic material having heat radiation and insulation properties, together with the first guide member 111.

Further, although the second plate 122 of the heat dissipation plate 120 is disposed between the first guide member 111 and the cooling unit 20 in the drawing, the present invention is not limited thereto, and one surface of the first guide member 111 may be in direct surface contact with the cooling unit 20.

In this case, as shown in fig. 5 and 9, the cartridge body 110 may include at least one elastic member 150 disposed between the first guide member 111 and the side surface of the pouch type battery 10.

The elastic member 150 can transmit heat generated in the pouch battery 10 to the first guide member 111 made of a plastic material having insulation and heat dissipation properties, and can absorb impact caused by external force by elastic deformation.

For example, the elastic member 150 may be formed of a polymer resin including a thermally conductive filler, and the elastic member 150 may be disposed on the first guide member 111 so as to protrude from one surface of the first guide member 111 toward the accommodating space S.

In the case of the above, if the pouch type battery 10 is disposed in the receiving space S, at least a portion of the elastic member 150 may contact the side surface of the pouch type battery 10.

Accordingly, the elastic member 150 fills the empty space that may be formed between the pouch battery 10 and the first guide member 111, thereby supporting the side surface of the pouch battery 10 and connecting the side surface of the pouch battery 10 to one surface of the first guide member 111.

Accordingly, when an external force is generated, the elastic member 150 can prevent the pouch battery 10 from being damaged in advance by buffering, and heat generated in the pouch battery 10 can be smoothly transferred to the first guide member 111 side formed of a plastic material having insulation and heat dissipation properties through the elastic member 150.

The cartridge body 110 may include at least one arrangement hole 115, the arrangement hole 115 may have a predetermined area and may be formed to penetrate the first guide member 111, and a portion of the elastic member 150 may be inserted into the arrangement hole 115 to be coupled to the first guide member 111.

The thermally conductive filler may be a non-conductive filler such as alumina, boron nitride, aluminum nitride, or silicon carbide, or may be a conductive filler such as graphite, carbon nanocarbon, graphene, silver powder, or copper powder. However, in the case where high reliability with respect to electrical insulation is required, a non-conductive filler may be used as the thermally conductive filler.

The polymer resin may be a polymer resin such as a silicone raw rubber, an ethylene propylene diene monomer rubber, a thermoplastic polyolefin synthetic rubber, an acrylic rubber, a thermoplastic polyurethane rubber, or the like.

However, the thermally conductive filler and the polymer resin are not limited thereto, and various known thermally conductive fillers and polymer resins can be used as long as heat dissipation properties can be secured.

On the other hand, in the case where at least a part of the cartridge body 110 is formed of a plastic material having insulation and heat dissipation properties, the bus bar 130 may be coupled to the cartridge body 110 such that a part of the bus bar 130 is in direct contact with the cartridge body 110 formed of a plastic material having insulation and heat dissipation properties.

That is, as shown in the enlarged view of fig. 2, the pair of busbars 130 coupled to the respective facing surfaces of the third guide member 113 and the fourth guide member 114 of the cartridge body 110 may include: a terminal portion 131 having a predetermined length; and an extension portion 132 extending in one direction from an end of the terminal portion 131.

In this case, the extension portion 132 may be combined with the cartridge body 110 to be in direct contact with the cartridge body 110 formed of a plastic material having insulation and heat dissipation properties.

The extending portion 132 may be a plate-shaped member having a predetermined area, the terminal portion 131 may be disposed to be positioned on one surface of the third guide member 113 and the fourth guide member 114, and the

terminals

12a and 12b of the pouch battery 10 may be connected to the terminal portion 131 by a method such as welding.

The cartridge body 110 made of a plastic material having insulation and heat dissipation properties may be the first guide member 111 as described above.

Accordingly, when the pouch type battery 10 is charged or discharged, heat generated in the

terminal portions

12a and 12b of the pouch type battery 10 can be rapidly transferred to the extension portion 132 side through the terminal portion 131 of the bus bar 130, and the heat transferred to the extension portion 132 side can be rapidly released after being transferred to the cartridge body 110 side formed of a plastic material having insulation and heat dissipation properties.

Alternatively, in order to effectively discharge heat generated when the battery is charged or discharged, the pouch type battery cartridge 200 according to an embodiment of the present invention may further include a heat transfer sheet 140 stacked on one surface of the heat dissipation plate 120.

In the above case, the cartridge body 110, the heat radiating plate 120, the bus bar 130, the elastic member 150, the buffer member 160, and the like can be applied to the same as described above.

Specifically, as shown in fig. 8 and 9, the heat transfer sheet 140 may be formed in a plate-shaped sheet form and may be disposed on one surface of the heat dissipation plate 120.

Thus, as shown in fig. 12, when the pouch type battery cartridge 200 accommodates two pouch type batteries 10, one of the two pouch type batteries 10 may be in direct contact with the heat dissipation plate 120, and the other pouch type battery 10 may be in direct contact with the heat transfer sheet 140 of the other pouch type battery cartridge 200 disposed adjacent thereto.

Specifically, the heat transfer sheet 140 may include: a first portion 140a covering one surface of the first plate 121; and a second portion 140b extending in one direction from an end of the first portion 140 a.

In the case described above, as shown in fig. 12, one face of the second portion 140b may be in direct contact with the cooling unit 20 such as a heat exchanger, a cooling chamber, or a cooling plate.

Accordingly, the heat transfer sheet 140 can rapidly dissipate heat generated in the pouch-shaped batteries 10 received in the adjacent pouch-shaped battery cartridges 200, and can rapidly dissipate heat through the second portion 140b directly contacting the cooling unit 20.

In this case, the heat transfer sheet 140 may be formed of a material having a relatively higher thermal conductivity than the heat sink 120, and one surface of the heat transfer sheet 140 may be attached to one surface of the heat sink 120 by an adhesive layer (not shown).

Accordingly, heat generated in each of the two pouch batteries 10 accommodated in the same pouch type battery cartridge 200 may be transferred to the heat transfer sheet 140 side through the heat sink 120 and then dispersed or directly transferred to the heat transfer sheet 140 side, and may be rapidly discharged through the cooling unit 20 through the second portion 140b of the heat transfer sheet 140. Thereby, the performance as a battery due to the heat of the pouch type battery 10 described above can be prevented from being reduced or minimized.

As a non-limiting example, the heat transfer sheet 140 may be a graphite sheet 141, and the surface of the graphite sheet 141 may be subjected to an insulation treatment. The reason is that the graphite sheet 141 has not only high thermal conductivity but also excellent electrical conductivity, and if the graphite sheet 141 is in direct contact with the pouch type cell 10 and the heat dissipation plate 120, an electrical short circuit may occur between the graphite sheet 141 and the pouch type cell 10.

In order to prevent this, in the present invention, in the case where the heat transfer sheet 140 is formed of a graphite sheet 141 having a plate shape, the graphite sheet 141 may be a graphite sheet having an insulation-treated surface. Accordingly, the heat transfer sheet 140 has high thermal conductivity for heat dissipation, and can prevent the possibility of electrical short circuit due to the electrical conductivity.

As another example, as shown in fig. 10, the heat transfer sheet 140 may include an insulating film member 143, and the insulating film member 143 is attached to the graphite sheet 141 through a plate-shaped graphite sheet 141 and an adhesive layer 142 to cover a surface of the graphite sheet 141.

The insulating film member 143 may include: a first insulating film member 143 covering an upper surface of the graphite sheet 141; and a second insulating film member 143 covering the lower surface of the graphite sheet 141, but is not limited thereto and may be formed of one member.

Accordingly, the heat transfer sheet 140 may have high thermal conductivity due to the graphite sheet 141, and may have insulation due to the insulating film member 143.

In such a case, the adhesive layer 142 may contain a non-conductive component to further improve the insulation property.

In the pouch-shaped

battery cartridges

100 and 200 according to the embodiment of the present invention as described above, a plurality of the cartridges are stacked in one direction, whereby one battery pack 1000 may be constructed.

That is, the plurality of pouch

type battery cartridges

100 and 200 may be fastened to each other in a state in which at least one pouch type battery 10 is received in the respective receiving spaces S and stacked one on another along one direction. Thereby, one pouch type battery pack 1000 can be constructed.

In this case, one surface of the pouch-shaped battery 10 received in any one of the pouch-shaped

battery cartridges

100 and 200 may be in direct surface contact with one surface of the heat dissipation plate 120 or the heat transfer sheet 140 provided in the other pouch-shaped

battery cartridge

100 or 200.

As an example, as shown in fig. 13, in a pouch type battery pack 1000 according to an embodiment of the present invention, a plurality of pouch type battery cartridges 100 may be stacked in a plurality of layers along one direction, and the pouch type battery cartridges 100 stacked in the plurality of layers may be fixed to each other by fastening rods 340 and a mounting frame 300.

In this case, the pouch type battery pack 1000 may be fixed to each other such that the first guide member 111 faces downward, and the cooling unit 20 for cooling may be disposed on a lower side of the first guide member 111.

Thus, in the pouch type battery pack 1000, the bus bars 130 connected to at least one pouch type battery 10 may be electrically connected to each other to increase the total capacity, and the at least one pouch type battery 10 may be accommodated in the pouch

type battery cartridges

100 and 200, respectively.

Here, the pouch

type battery cartridges

100 and 200 and the pouch type battery 10 are the same as those described above, and thus, detailed description thereof will be omitted.

For example, the mounting frame 300 may be a frame structure surrounding the pouch

type battery cartridges

100 and 200 disposed adjacent to each other.

Specifically, the installation frame 300 may include: a pair of

support plates

310 and 320 disposed at front and rear ends of the pouch-shaped

battery cartridges

100 and 200, the pouch-shaped

battery cartridges

100 and 200 having a predetermined area and being disposed adjacent to each other; at least one fixing member 330 connecting the pair of

support plates

310 and 320; and at least one fastening rod 340 for simultaneously fastening the pouch

type battery cartridges

100 and 200.

The fastening rod 340 may have a predetermined length and may pass through the fastening parts 116 formed in the pouch

type battery cartridges

100 and 200, respectively, at the same time.

Thus, the pouch-shaped

battery cartridges

100 and 200, which are adjacently disposed, can be fixed to each other by the mounting frame 300.

The

support plates

310 and 320 may be plate-shaped or frame-shaped structures.

However, in the present invention, the mounting frame 300 is not limited thereto, and may be changed into various forms as long as the form can fix the plurality of pouch

type battery cartridges

100 and 200 adjacently disposed. For example, the mounting frame 300 may be formed in a case shape in which the pouch-shaped

battery cartridges

100 and 200 are accommodated therein.

The pouch type battery pack 1000 according to an embodiment of the present invention as described above may be used as an energy supply source for various products such as electric vehicles, unmanned planes, cellular phones, notebook computers, digital cameras, and the like.

While one embodiment of the present invention has been described above, the idea of the present invention is not limited to the embodiment proposed in the present specification, and a person having ordinary skill in the art understanding the idea of the present invention can easily propose other embodiments by adding, changing, deleting, adding, etc. components within the scope of the same idea, and this is included in the scope of the idea of the present invention.

Claims

1. A pouch-type battery cartridge, comprising:

a cartridge body forming a receiving space with both open sides for receiving at least one pouch type battery, and including a first guide member facing a side surface of the pouch type battery received in the receiving space;

a heat radiation plate combined with the box body to cover the open surface of the accommodating space; and

and a pair of bus bars coupled to one side of the cartridge body to be connected to terminals of the pouch type battery.

2. The pouch-shaped battery cartridge as set forth in claim 1, wherein the first guide member is formed of a plastic material having heat dissipation properties and insulation properties.

3. The pouch-type battery cartridge according to claim 1,

the cartridge body includes:

a second guide member disposed so as to be spaced apart from the first guide member so as to face the first guide member; and

a pair of third and fourth guide members for connecting both ends of the first and second guide members,

the first to fourth guide members are formed of a plastic material having heat dissipation properties and insulation properties.

4. The pouch-type battery cartridge according to claim 2,

the cartridge body includes at least one elastic member protruding from one surface of the first guide member toward the accommodating space,

when the pouch-shaped battery is accommodated in the accommodating space, the elastic member is in contact with a side surface of the pouch-shaped battery.

5. The pouch-type battery cartridge according to claim 4,

the cartridge body includes at least one arrangement hole having a predetermined area and formed to penetrate the first guide member,

the elastic member is coupled to the first guide member through the disposition hole.

6. The pouch-shaped battery cartridge as set forth in claim 4, wherein the elastic member is formed of a polymer resin including a thermally conductive filler.

7. The pouch-type battery cartridge according to claim 1,

the heat dissipation plate includes:

a first plate having a plate shape and covering the open surface of the accommodating space; and

a second plate extending in one direction from an end of the first plate and in surface contact with one surface of the first guide member,

when the pouch type battery is accommodated in the accommodating space, the first plate is in surface-to-surface contact with one surface of the pouch type battery.

8. The pouch-shaped battery cartridge as set forth in claim 1, wherein the heat radiating plate is a plate-shaped metal plate.

9. The pouch-type battery cartridge as set forth in claim 1, wherein the bus bar comprises:

a terminal part connected to a terminal of the pouch type battery; and

and an extension portion extending in one direction from an end of the terminal portion and disposed to be in contact with the first guide member.

10. The pouch type battery cartridge according to claim 1, wherein the pouch type battery cartridge further comprises a plate-shaped heat transfer sheet, and the heat transfer sheet is disposed on one surface of the heat dissipation plate to be in surface contact with the heat dissipation plate.

11. The pouch-shaped battery cartridge as set forth in claim 10, wherein the heat transfer sheet is formed of a material having a higher thermal conductivity than the heat dissipation plate.

12. The pouch-type battery cartridge as set forth in claim 10, wherein the heat transfer sheet is a graphite sheet having an insulation-treated surface.

13. The pouch-type battery cartridge according to claim 10, wherein the heat transfer sheet comprises an insulating film member, and the insulating film member is attached to the graphite sheet through a plate-shaped graphite sheet and an adhesive layer to cover a surface of the graphite sheet.

14. The pouch-type battery cartridge as set forth in claim 10, wherein the heat transfer sheet comprises:

a first portion disposed in a portion covering an open surface of the receiving space in a total area of the heat radiating plate; and

and a second portion extending from the first portion to cover a heat dissipating plate portion in surface-to-surface contact with the first guide member.

15. A pouch type battery pack, comprising:

a plurality of pouch-type battery cartridges of any one of claims 1 to 14;

a plurality of pouch-shaped batteries accommodated in the accommodating space; and

and a mounting frame for fixing the pouch type battery cartridges stacked in one direction.