KR101769108B1 - Cartridge for secondary battery - Google Patents

Abstract

The present invention provides a cartridge of a novel structure capable of securing a stable operating performance of a secondary battery that operates at a high temperature or has improved performance. A secondary battery cartridge according to the present invention includes: a seating part on which at least a part of a lower portion of a secondary battery is seated; And at least one of the seating portion and the side portion is configured to be stacked in at least one direction including a side portion covering the side surface of the secondary battery, A heat insulating member for preventing the side heat from flowing out to the outside, and a heating member for supplying heat to the secondary battery side.

Description

Cartridge for secondary battery [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cartridge used for stacking a plurality of secondary batteries, and more particularly, to a secondary battery stacking cartridge capable of securing an ambient temperature condition of the secondary battery stored therein to a predetermined level or more.

2. Description of the Related Art Generally, a secondary battery is a battery that can be charged and discharged unlike a primary battery which can not be charged, and is widely used in various fields and devices such as a mobile phone, a notebook computer, a camcorder, Currently commercialized secondary batteries include nickel-cadmium batteries, nickel-metal hydride batteries, nickel-zinc batteries, and lithium secondary batteries, and metal air batteries, all solid batteries, sodium-based batteries, magnesium batteries, have.

Among these various secondary batteries, the lithium secondary battery has a remarkable advantage in that it has almost no memory effect compared with the nickel-based secondary battery, has a high charge density, low self-discharge rate and high energy density

These lithium secondary batteries mainly use a lithium-based oxide and a carbonaceous material as a cathode active material and an anode active material, respectively. The lithium secondary battery includes a positive electrode plate and a negative electrode plate coated with the positive electrode active material and the negative electrode active material, respectively, and the electrolyte is housed in the case. The electrolyte is typically an electrolyte in a liquid state and is also referred to as an electrolyte .

In the case of a secondary battery made of a liquid electrolyte, it is widely used due to various advantages such as easy handling and manufacturing, good electric conductivity at room temperature, and stable performance even at room temperature. However, in the case of such a liquid electrolyte cell, problems such as leakage of electrolyte or generation of gas may occur, and the safety of the secondary battery such as explosion, ignition, and discharge of harmful gas may be significantly deteriorated.

In such a situation, the use of a solid electrolyte makes it possible to prevent problems such as electrolyte leakage and gas generation, and to increase the interest and development of all solid-state batteries that can secure safety. Particularly, in the case of an electric vehicle or a power storage device, such as an electric charging station of an electric vehicle or a power storage device used for a smart grid, a large amount of secondary battery can be used, so that the expectation for a stable all- . However, in the case of such a pre-solid battery, since the ionic conductivity is low at room temperature, the operating temperature is relatively higher than that of the liquid electrolyte battery. Therefore, when a battery module is constructed using a plurality of all-solid-state cells, it is necessary to increase the temperature condition compared to the liquid electrolyte cell.

However, in the case of the conventional battery module, since the liquid electrolyte cell is generally targeted, it has a structure which is not suitable when the solid electrolyte cell is used.

Particularly, in the case of a battery module, a cartridge is often used as a structure for easily stacking and storing a plurality of pouch-shaped secondary batteries and protecting the secondary battery from external impact or the like and preventing flow. These cartridges can be expressed in various other terms such as a frame for lamination, and they can be configured to be stacked in a substantially unidirectional direction, for example, in a vertical direction, and can be configured to accommodate the secondary battery in an internal space formed at the time of lamination. Incidentally, such a cartridge often has various configurations for lowering the temperature of a stored secondary battery. For example, the cartridge may have cooling fins formed in a plate shape, or an opening may be formed such that external air can be introduced into the cartridge when stacked. The reason why the cartridge includes the configuration for cooling the secondary battery is as follows. In the case of the liquid electrolyte secondary battery included in the battery module, if the temperature is significantly higher than the normal temperature, not only the performance is lowered but also the safety is low This is because problems can arise.

However, in the case of a secondary battery such as a solid-state battery, the performance of the battery is not properly exhibited at room temperature, and the performance of the battery can be improved at a temperature higher than room temperature. Therefore, it is not suitable to use the configuration of the conventional battery module, such as the conventional cartridge, as it is while using the all solid battery.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a secondary battery which can operate at a higher temperature or improve its performance compared to a liquid electrolyte secondary battery such as a non-aqueous electrolyte lithium battery, An object of the present invention is to provide a cartridge having a novel structure.

Other objects and advantages of the present invention will become apparent from the following description, and it will be understood by those skilled in the art that the present invention is not limited thereto. It will also be readily apparent that the objects and advantages of the invention may be realized and attained by means of the instrumentalities and combinations particularly pointed out in the appended claims.

According to an aspect of the present invention, there is provided a cartridge for a secondary battery, including: a seating part on which at least a part of a lower portion of a secondary battery is seated; And at least one of the seating portion and the side portion is configured to be stacked in at least one direction including a side portion covering the side surface of the secondary battery, A heat insulating member for preventing the side heat from flowing out to the outside, and a heating member for supplying heat to the secondary battery side.

Preferably, the heat insulating member is provided on the side surface portion.

Also preferably, the heat insulating member is provided on the inner surface or inside of the side surface portion.

Also preferably, the heat insulating member constitutes the side surface portion.

Preferably, at least a part of the heat insulating member is detachable.

Preferably, the heating member is provided in the seat portion.

Preferably, the heating member is formed in a plate shape to cover at least a part of one surface of the secondary battery that is seated in the seating portion.

Also preferably, the heating member is provided on the upper surface of the seat portion.

Also preferably, the heating member constitutes the seat portion.

Further, preferably, at least a part of the lower portion of the heating member is exposed to the outside.

Preferably, the heat insulating member and the heating member are provided together on at least one of the seat portion and the side surface portion.

Also preferably, the heating member is located inside the heat insulating member.

Also preferably, the heating member is provided on the surface of the heat insulating member in the form of a heat ray.

Preferably, the cartridge according to the present invention further comprises a lower cover part configured to at least partially surround the outside of the side surface of the cartridge stacked at the lower part thereof when stacked.

Preferably, the cartridge according to the present invention further includes a partition wall portion formed in a vertical direction in an internal space defined by the side surface portion and dividing the internal space defined by the side surface portion into two or more in the horizontal direction do.

Also preferably, the partition wall portion has at least one of the heat insulating member and the heating member.

Also preferably, the heat insulating member comprises at least one material selected from the group consisting of glass wool, EPS, XPS, polyurethane foam, water soft foam, urea foam, vacuum insulation panel, PVC and heat reflecting insulation.

According to an aspect of the present invention, when a battery module is constructed using a secondary battery having stable operating performance at a higher temperature than a conventional nonaqueous electrolyte lithium battery, a secondary battery stacking cartridge suitable for the secondary battery can be provided.

Further, when a pre-solid battery using a solid electrolyte is housed in a cartridge according to the present invention, the ambient temperature of the pre-solid battery may be increased to improve the operating performance of the pre-solid battery.

In the case of such a solid-state battery, there is little concern about electrolyte leakage and gas generation. Therefore, when the battery module is constructed by using the same, problems such as ignition, explosion, and generation of harmful gas may not occur. have.

Particularly, in the case of the present invention, by including the heating member together with the heat insulating member, the performance of the secondary battery during initial driving can be improved. For example, in the case of a pre-solid secondary battery, the temperature inside the cartridge may not be raised to an optimum temperature at the beginning of operation. In this case, heat is supplied to the entire solid secondary battery through the heating member, It is possible to ensure that the operating performance of the battery is higher than a certain level even in the early stage of the battery. Therefore, it is possible to shorten the standby time for achieving a stable performance with respect to all solid secondary batteries and the like.

According to an aspect of the present invention, since the heat insulating member and the heating member are provided in the cartridge itself, when the cartridge is stacked and the secondary battery is received in the inner space, the heat insulating member and the heating member are naturally positioned And it is not necessary to additionally provide or provide a separate structure for heat insulation or heating of the secondary battery. Therefore, not only the processability in manufacturing the battery module is improved, but also the increase in space or the increase in load due to the separate heat insulation and heating configuration can be prevented.

More specifically, according to one aspect of the present invention, the heat generated in the secondary battery does not escape to the outside of the cartridge, and the cartridge can exist almost in the internal space in which the cartridge is stacked. Therefore, the temperature around the secondary battery can be stably maintained at a relatively high level relative to the outside, and the operating performance of the secondary battery such as the all-solid battery can be stably secured. Further, according to this aspect of the present invention, not only the heat supplied by the heating member but also the heat generated by the secondary battery itself is used to keep it warm, so that it is unnecessary to continuously supply heat or to supply a large amount of heat none.

In addition, the secondary battery cartridge according to the present invention can be applied to various secondary batteries other than the solid-state lithium secondary batteries in which the electrolyte is in a solid state, and which operate at a temperature higher than room temperature or whose performance is improved.

In addition, according to one aspect of the present invention, the driving temperature can be controlled according to the material of the heat insulating material, so that the secondary battery can provide an optimal temperature condition and exhibit stable performance.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description of the invention given below, serve to further augment the technical spirit of the invention. And should not be construed as limiting.
1 is a view schematically showing a configuration of a secondary battery cartridge according to an embodiment of the present invention.
2 is a cross-sectional view taken along line A-A 'in Fig.
3 is a cross-sectional view schematically showing a configuration in which two cartridges shown in Fig. 2 are stacked in a vertical direction and a secondary battery is housed in the inner space.
4 is a cross-sectional view schematically showing the configuration of a cartridge according to another embodiment of the present invention.
5 is a cross-sectional view schematically showing the configuration of a secondary battery cartridge according to another embodiment of the present invention.
6 is a cross-sectional view schematically showing a configuration of a secondary battery cartridge according to another embodiment of the present invention.
7 is a cross-sectional view schematically showing the configuration of a cartridge according to another embodiment of the present invention.
8 is a perspective view schematically showing a configuration of a cartridge according to another embodiment of the present invention.
9 is a cross-sectional view schematically showing the configuration of a secondary battery cartridge according to another embodiment of the present invention.
10 is a cross-sectional view schematically showing a configuration in which the cartridges of Fig. 9 are stacked in a vertical direction.
11 is a cross-sectional view schematically showing a configuration of a secondary battery cartridge according to another embodiment of the present invention.
12 is a cross-sectional view schematically showing a configuration of a secondary battery cartridge 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. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

FIG. 1 is a view schematically showing a configuration of a cartridge for a secondary battery according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along the line A-A 'in FIG.

Referring to FIGS. 1 and 2, the secondary battery cartridge 100 according to the present invention can receive and hold the secondary battery to prevent the secondary battery from flowing, and guide the assembly of the secondary battery. In particular, the cartridge 100 may have an internal space, and the secondary battery may be housed in the internal space. For example, as indicated by I in Fig. 2, the cartridge 100 may be formed with an internal space in the form of an open top and a limited bottom and side. The secondary battery can be inserted and accommodated in the inner space through the upper opening portion.

Further, the cartridge 100 may be configured such that at least a part of the accommodated secondary battery is seated. For example, in the case of a pouch-type secondary battery having a sealing portion, the sealing portion, that is, the rim portion of the secondary battery may be seated in the cartridge, or the flat surface located in the lower portion of the secondary battery may be entirely seated in the cartridge.

More specifically, the cartridge includes a seating portion 110 and a side portion 120.

The seat portion 110 is a component in which at least a part of the secondary battery is seated in the cartridge. In particular, at least a part of the lower portion of the secondary battery may be seated in the seating portion 110, and the upper surface of the seating portion 110 may correspond to a lower portion of the secondary battery. For example, when the lower portion of the secondary battery is formed in a flat shape, the upper surface of the seating portion 110 may also be formed in a flat shape. As another example, when the lower part of the secondary battery is formed in a curved shape such as a cylindrical secondary battery, the seating part 110 may be formed in a shape in which a semicircular groove is concave so that the cylindrical secondary battery can be seated.

The side part 120 may be formed in a shape erected on the rim of the seating part 110, that is, in the vertical direction on the outer peripheral part. For example, referring to FIG. 1, when the cartridge is formed in a substantially rectangular shape viewed from the top to the bottom, the side portion 120 is formed in a shape perpendicular to the paper surface at a portion corresponding to a side of a rectangle . When the secondary battery is housed in the internal space of the cartridge, the side portion 120 can be positioned on the side surface of the secondary battery and cover the side surface of the secondary battery.

In the present invention, the cartridge may be configured to be stackable in at least one direction as a component used for stacking one or more secondary batteries. For example, based on the configuration of FIG. 2, the cartridge can be configured to be stackable in the vertical direction. In this case, the cartridge may be formed in a generally flat portion where the cartridge comes into contact with an adjacent cartridge in stacking. Then, the flat portions are brought into mutual contact with each other, so that the cartridge can be easily stacked in the direction perpendicular to the paper surface.

To this end, the upper and lower ends of the side part 120 may be formed with engaging parts, particularly concave and convex parts, in a mutually engageable manner. For example, as indicated by P in FIG. 2, protrusions of a convex shape may be formed on the upper portion of the side portion 120. 2, grooves may be formed at the lower end of the side part 120 of the cartridge in a position and shape corresponding to the protrusion at the upper end. Therefore, when these cartridges are stacked on top of each other, the projections formed on the side portions 120 of the cartridges stacked on the bottom can be inserted into the grooves formed in the side portions 120 of the cartridges stacked on the top. According to this embodiment of the present invention, the protrusions and the grooves guide the stacking in the vertical direction between the cartridges, so that the position of the stacking between the cartridges can be easily recognized, and the horizontal movement of the stacked cartridges can be prevented.

Particularly, the cartridge according to the present invention has the heat insulating member 130 and the heating member 140.

The heat insulating member 130 may be made of a material or a structure that blocks or reduces the movement of the heat so as to prevent the side heat of the secondary battery from flowing out. That is, the heat insulating member 130 may be configured to reduce or eliminate heat loss from the inside to the outside of the cartridge in which the secondary battery is located. Therefore, the cartridge can be configured to keep the temperature of the internal space within a certain range, especially within a temperature range higher than normal temperature, by the heat insulating member 130. For example, when a secondary battery is housed in an inner space and a plurality of batteries are stacked to constitute a battery module, the temperature of the inner space may be configured to be maintained at a temperature of 50 ° C to 200 ° C.

According to the cartridge structure of the present invention, the battery module according to the present invention can employ a secondary battery which operates at a temperature higher than room temperature or whose performance is improved. In particular, a cartridge according to the present invention may contain a pre-solid battery. The entire solid battery is a concept in which the electrolyte is a solid-state battery and is a concept as compared with a secondary battery composed of a typical liquid-state electrolyte. For example, the cartridge according to the present invention may be a cartridge for accommodating a pre-solid lithium battery. Such a pre-solid battery is superior in safety to a liquid electrolyte secondary battery because there is no leakage problem, and can be easily realized in a flexible shape. Further, the entire solid-state battery can minimize the thickness of the secondary battery and can be easily realized in high-voltage and high-density batteries.

Such a pre-solid battery is difficult to be used in a conventional battery module because it is difficult to perform its performance at room temperature because its ionic conductivity is not high at room temperature due to the characteristic of a solid electrolyte. However, in the case of the cartridge according to the present invention, since the heat insulating member 130 is provided as described above, when the entire solid secondary battery is housed in the internal space, the temperature around the secondary battery can be kept relatively high, The battery module can be easily configured.

In particular, the secondary battery may generate heat during operation, and such heat may not be discharged to the external space of the cartridge by the heat insulating member 130, but may be retained in the internal space of the cartridge in which the secondary battery is located. Therefore, the temperature of the cartridge internal space can be maintained at a certain level or more. Therefore, the battery module according to the present invention can be easily applied to a secondary battery having improved performance at a higher temperature than a conventional secondary battery including all solid-state batteries.

Here, it is preferable that the heat insulating member 130 has a thermal conductivity of 0.1 W / mk or less at room temperature. Preferably, the heat insulating member 130 may have a thermal conductivity of 0.05 W / mk or less.

The heat insulating member 130 may be formed of glass wool, EPS, expanded polystyrene sheet, polyurethane foam, water soft foam, , A vacuum insulation panel (PVC), a PVC, and a thermal reflective material. In particular, in the case of these heat insulating members 130, it is easier to insulate the entire solid-state battery from the operating temperature range.

The temperature of the internal space of the cartridge according to the present invention can be controlled by adjusting the type, arrangement, and thickness of the heat insulating member 130.

The heating member 140 may be configured to supply heat to the secondary battery side accommodated in the inner space in the cartridge. According to this configuration of the present invention, when the temperature around the secondary battery is maintained at a predetermined level or more, heat generated from the secondary battery can be used as well as heat generated from the heating member 140 can be utilized.

According to this aspect of the present invention, the temperature of the internal space of the cartridge, that is, the temperature around the secondary battery, can be raised more rapidly to a higher temperature. Furthermore, since the heat generated from the secondary battery is not present or is not present before the secondary battery is driven, or when the secondary battery starts to be driven, the temperature of the internal space of the cartridge is set to a certain level or more There may be a limit to height. However, according to the above-described structure of the present invention, heat generated through the heating member 140 can be used even when there is little heat generated from the secondary battery. Therefore, even when the secondary battery is initially driven or the external temperature is low, The performance of the battery can be ensured.

In particular, the heating member 140 may be implemented in a form of generating heat by receiving power. Therefore, the heating member 140 may include a power terminal for receiving power. Here, the power supplied to the heating member 140 may be supplied from a secondary battery stored in the internal space of the cartridge, or may be supplied from a separate battery outside the cartridge. The configuration for generating heat using such a power source can be implemented in various ways. For example, the heating member 140 may be realized by resistive heating using a jelly generated through current, or infrared heating through thermal infrared radiation.

Preferably, the cartridge according to the present invention may be limited in internal space by lamination. The secondary battery can be accommodated in the limited internal space.

3 is a cross-sectional view schematically showing a configuration in which two cartridges 100 shown in Fig. 2 are stacked in a vertical direction and a secondary battery 200 is housed in the inner space.

3, the inner space of the cartridge 100 stacked on the lower side may be clogged with the upper open portion by stacking the other cartridge 100 on the upper portion, Not only the side portion 120 but also the upper portion can be defined. In other words, referring to the configuration shown in FIG. 2, the inner space I of the cartridge is formed in an open top shape. When another cartridge is stacked in the upward direction as shown in FIG. 3, The open portion above the inner space can be covered. The upper, lower, right and left and forward and backward directions of the secondary battery 200 are entirely covered by storing the secondary battery 200 in such a limited space, and heat exchange between the inner space and the outer space of the cartridge can be blocked or reduced.

The heat insulating member 130 and the heating member 140 may be provided on at least one of the seating portion 110 and the side surface portion 120.

Preferably, the heat insulating member 130 may be provided on the side surface 120 of the cartridge, as shown in FIGS. Even if a plurality of cartridges are stacked in the vertical direction, no other cartridge is located outside the side portion 120, and the outer space of the side portion 120 can be an external space of the battery module. Therefore, since heat transfer from the inside to the outside of the cartridge through the side portion 120 may cause heat loss immediately, it is possible to prevent the heat loss through the side portion 120 when the side member 120 is provided with the heat insulating member 130. [ can do.

Furthermore, the heat insulating member 130 may be provided only on the side surface 120 of the cartridge, and may not be provided on the seat portion 110 of the cartridge. When a plurality of cartridges are stacked in the vertical direction, an inner space by another cartridge may be located outside the seating portion 110 of the cartridge. Therefore, even if the heat of the inner space of the cartridge is not provided in the seating part 110, and the heat of the inner space of the cartridge flows into the outer space of the cartridge through the seating part 110, It may be introduced into another stacked cartridge. Therefore, when viewed from the whole viewpoint of the battery module, it is not heat loss since it is only heat transfer inside.

According to this embodiment of the present invention, the space for forming the heat insulating member 130 can be reduced to simplify the structure, increase the convenience of the process, and reduce the cost.

In addition, since the heat exchange between the cartridges stacked in the vertical direction is possible, according to the embodiment as described above, the peripheral temperature unbalance of the entire secondary battery 200 of the battery module constructed by stacking a plurality of cartridges is eliminated . That is, when the ambient temperature of a part of the plurality of secondary batteries 200 included in the battery module 200 is relatively low, heat exchange between the upper and lower parts through the mounting part 110 becomes possible, When the ambient temperature of the secondary battery 200 located at the lower side of the secondary battery 200 is low, the ambient temperature of the secondary battery 200 may be increased due to heat transfer from the secondary battery 200 located in the various cartridges of different layers.

Particularly, battery packs for electric power storage devices or battery packs for automobiles are often placed outdoors. However, when the ambient temperature is low, such as in winter, the temperature of the stacked cartridges at the top or bottom can be relatively low have. Therefore, when the heat exchange between the stacked cartridges is facilitated, the performance of the secondary battery 200 having a low ambient temperature can be prevented from being significantly lowered.

More preferably, the heat insulating member 130 may be provided on the inner surface of the cartridge, particularly on the inner surface of the side surface 120, as shown in FIGS. 1 and 2. Here, the inner surface means the side surface on which the secondary battery 200 is located, and it can be said to be the surface forming the inner space. According to this embodiment of the present invention, the process of providing the heat insulating member 130 in the cartridge can be easily performed. For example, the heat insulating member 130 may be provided in such a manner that it is attached to the inner surface of the side portion 120 of the cartridge through a fastening member such as an adhesive or bolt. Further, according to this embodiment of the present invention, since the heat is prevented from being transmitted through the side portion 120, the ability to retain heat in the internal space can be improved. In particular, the heat insulating member 130 may be entirely attached to the inner surface of the side portion 120 of the cartridge.

4 is a cross-sectional view schematically showing the configuration of a cartridge according to another embodiment of the present invention.

4, the cartridge includes a side portion 120 and a seat portion 110. However, unlike the structure shown in FIG. 2, the heat insulating member 130 is configured to be included inside the side portion 120. FIG. According to the embodiment in which the heat insulating member 130 is embedded in the inside of the cartridge, the risk of breakage or damage of the heat insulating member 130 can be reduced since the heat insulating member 130 is not exposed to the outside of the cartridge.

According to the embodiment in which the heat insulating member 130 is provided in the side surface portion 120 of the cartridge as in the above embodiment, the portion other than the heat insulating member 130, that is, the base portion of the side surface portion 120, 130). ≪ / RTI > Therefore, it is possible to prevent the thermal insulating member 130 from degrading the mechanical support force when the cartridge is stacked.

Also, preferably, the heating member 140 may be provided in the seating portion 110 of the cartridge, as shown in FIGS.

According to this embodiment of the present invention, heat generated by the heating member 140 can be efficiently transferred to the secondary battery 200. In the cartridge, the seating portion 110 may be formed to have a larger surface area than the side portion 120. The pouch type secondary battery 200 may be configured in a shape having approximately two large surfaces such that the surface of one of the two large surfaces of the secondary battery 200 is seated on the seating portion 110 . Therefore, since the heat generated by the heating member 140 can be transferred to the wide surface of the secondary battery 200, the heat generated by the secondary battery 200 can be transferred to the secondary battery 200, And the temperature rise rate around the secondary battery 200 can be increased.

Particularly, the heating member 140 may be formed in a plate shape as shown in FIG. 1 and may be provided in the seating part 110. In this case, the heating member 140 may cover at least a part of the wide bottom surface of the secondary battery 200 that is seated in the seating part 110 in a form that is laid down parallel to the ground. More preferably, the heating member 140 is configured to cover the entire lower surface of the secondary battery 200 that is seated in the seating portion 110.

Preferably, the heating member 140 may be provided on the upper surface of the seating part 110, as shown in FIG.

According to this embodiment of the present invention, since the secondary battery directly contacts the upper portion of the heating member 140, the heat generated from the heating member 140 can be efficiently transferred to the secondary battery. However, the present invention is not necessarily limited to these embodiments, and the heating member 140 may be provided in the mounting portion 110 of the cartridge in various forms.

5 is a cross-sectional view schematically showing the configuration of a secondary battery cartridge according to another embodiment of the present invention.

Referring to FIG. 5, the heating member 140 may be configured such that at least a portion of the lower portion thereof is exposed to the outside, that is, the lower portion, such as a portion indicated by B. More specifically, the cartridge includes a side portion 120 and a seating portion 110, wherein the seating portion 110 may be provided only at a rim portion of the cartridge, with the central portion being empty when viewed from above . The heating member 140 may be provided on an empty portion of the seating portion 110 so that the heating member 140 may be exposed not only in the upper direction but also in the lower direction.

According to this configuration of the present invention, when two or more cartridges are stacked in the vertical direction, the heating member 140 provided in the specific cartridge is exposed to the inner space of the cartridge, It can also be exposed to the internal space. Therefore, in this case, the heat generated from the heating member 140 provided in the specific cartridge can be transferred to the secondary battery stored in the cartridge, not only the secondary battery stored in the cartridge, but also the secondary battery stored in the cartridge Can be effectively transmitted in the form of Therefore, when a plurality of cartridges are laminated, the lower part of the secondary battery receives heat directly from the heating member 140 of the cartridge accommodated therein, and the upper part of the secondary battery is heated from the heating member 140 The heat can be supplied directly, and the heat transfer efficiency to the secondary battery can be greatly improved.

Meanwhile, the heat insulating member 130 may be configured to be removable at least partially.

6 is a cross-sectional view schematically showing a configuration of a secondary battery cartridge according to another embodiment of the present invention.

Referring to FIG. 6, the heat insulating member 130 may be provided on both the inner surface and the outer surface of the side portion 120, but at least a part thereof may be configured to be detachable. For example, as indicated by the arrow in the figure, the heat insulating member 130 on the outer surface may be configured to be fixable in the form of being attached to the outer surface of the side surface 120. The heat insulating member 130 may be configured to be detachable at a later stage.

According to this embodiment of the present invention, when the outer heat insulating member 130 is damaged or broken, by replacing only the outer heat insulating member 130 without replacing the entire cartridge, it is possible to recover the cartridge economically and easily, It is possible to prevent deterioration of the thermal insulation effect of the cartridge.

In addition, according to this embodiment, it is possible to adjust the internal temperature of the cartridge by detaching or changing the heat insulating member 130. For example, in a case where the cartridge is not provided with the outer heat insulating member 130 and it is determined that the internal temperature of the cartridge is low, the outer heat insulating member 130 is attached, thereby increasing the internal temperature of the cartridge. Alternatively, when it is determined that the internal temperature of the cartridge is low, the internal temperature of the cartridge may be increased by replacing the cartridge with a heat insulating member 130 having a high thermal insulation property.

Preferably, the heat insulating member 130 and the heating member 140 may be provided together on at least one of the seating portion 110 and the side surface portion 120.

7 is a cross-sectional view schematically showing the configuration of a cartridge according to another embodiment of the present invention.

Referring to Fig. 7, the heat insulating member 130 and the heating member 140 may be configured to be included together in the side portion 120. Fig. At this time, the heating member 140 may be located inside the heat insulating member 130 (left side of the right side portion 120 of the left side portion 120 in FIG. 7). In this case, the heat supplied by the heating member 140 can be blocked by the heat insulating member 130 outwardly, and can be supplied only to the inner space of the cartridge, so that the heating and insulation efficiency can be further improved.

Here, the heating member 140 may be provided on at least one of the upper portion and the lower portion of the side portion 120, as shown in FIG. Particularly, since the sealing portion of the secondary battery 200 can be located at the center portion of the side portion 120, according to the embodiment in which the heating member 140 is positioned above and / or below the side portion 120, The space can be efficiently utilized and the volume of the cartridge can be reduced.

7, the heating member 140 is provided on only a part of the inner surface of the heat insulating member 130. However, the heating member 140 may be provided on the entire inner surface of the heat insulating member 130 Do.

8 is a perspective view schematically showing a configuration of a cartridge according to another embodiment of the present invention.

Referring to Fig. 8, the heat insulating member 130 and the heating member 140 may be configured to be included together in the seating portion 110. [0050] As shown in Fig. Of course, the heat insulating member 130 may be provided on the side portion 120. [

Further, in the configuration of Fig. 8, the heating member 140 may be realized in the form of a heat wire. That is, in the previous embodiment, the heating member 140 is mainly formed in the form of a plate, that is, the heating member 140 is shown in the form of a heat plate. However, the present invention is not necessarily limited to such an embodiment, and as shown in FIG. 8, the heating member 140 may be realized in the form of a heat wire.

For example, the heating member 140 in the form of a hot wire may be attached to the upper surface of the inner surface of the heat insulating member 130, as shown in Fig. Alternatively, the heating member 140 in the form of a hot wire may be embedded in the heat insulating member 130.

According to the embodiment in which the heating member 140 is formed in a hot wire shape, by reducing the weight increase by the heating member 140, it is easy to attain light weight of the cartridge and the space occupied by the heating member 140 is reduced, The volume of the secondary battery 200 can be reduced or the storage capacity of the secondary battery 200 can be increased.

In the above embodiments, the heat insulating member 130 is provided on the side surface 120, but the heat insulating member 130 may form the side surface 120. In other words, the side portion 120 itself may be the heat insulating member 130. For example, the side portion 120 may be made of glass wool, or an insulating material such as EPS or XPS. According to this embodiment of the present invention, since the side portion 120 has a generally heat insulating property, the warmth by the cartridge can be improved, and it is not necessary to provide a separate heat insulating member 130 on the side portion 120, The manufacturing becomes easier, and the volume and weight of the cartridge can be reduced.

In addition, unlike the above-described embodiments, the heating member 140 may constitute the seating part 110. For example, the seating part 110 can be realized in the form of a heat plate, and the secondary battery can be brought into contact with the seating part 110 in the form of a heat plate. According to this embodiment of the present invention, since the seating portion 110 itself is the heating member 140, it is not necessary to provide a separate substrate other than the heating member 140 as the seating portion 110, And the volume and weight of the cartridge can be reduced.

9 is a cross-sectional view schematically showing the configuration of a secondary battery cartridge according to another embodiment of the present invention. 10 is a cross-sectional view schematically showing a structure in which the cartridges of Fig. 9 are stacked in the vertical direction.

Referring to FIGS. 9 and 10, the secondary battery cartridge according to the present invention may further include a lower cover part 150. FIG. The lower cover part 150 may be configured to at least partly surround the outside of the side surface of the cartridge stacked on the lower part when stacking the upper part of the other cartridge. For this purpose, the length of the inner space of the lower cover part 150 of the cartridge may be made larger than the length of the inner space of the lower part cover part 150 by the side part 120.

According to this embodiment of the present invention, when the cartridges are stacked in the vertical direction, the side cover portions 150 of the cartridges stacked on the upper layer are stacked in the inner space of the cartridge, As shown in FIG. Accordingly, when the inner space of the lower-layer cartridge is taken as a reference, since the lower-layer cover portion 150 of the upper-layer cartridge is present outside the side portion 120 of the inner space, heat leakage from the inner space in the horizontal direction is more reliably blocked .

In particular, as shown in FIGS. 9 and 10, a heat insulating member 130 may be provided on at least a part of the lower cover part 150. In this case, the internal space of the cartridge stacked on the lower layer is composed of the heat insulating member 130 provided on the side portion 120 of the cartridge stacked on the lower layer, the heat insulating member 130 provided on the lower cover portion 150 of the cartridge stacked on the upper layer 130, there may be a plurality of layers of the heat insulating member 130 in the horizontal direction. Therefore, according to this embodiment of the present invention, heat loss in the lateral direction can be effectively prevented.

9 and 10, in the cartridge for a secondary battery according to the present invention, the mounting portion 110 itself may be constituted by the heating member 140. In this case, In this case, the cartridge positioned in the upper layer not only supplies heat to the secondary battery stored in the internal space of the cartridge, but also can supply heat to the secondary battery housed in the cartridge located in the lower layer, thereby enabling efficient heat supply.

11 is a cross-sectional view schematically showing a configuration of a secondary battery cartridge according to another embodiment of the present invention.

Referring to FIG. 11, the cartridge can accommodate a plurality of secondary batteries, and each of the secondary batteries can be disposed at a predetermined distance from each other in the horizontal direction. In addition, the cartridge may include a partition wall portion 160 between two secondary cells.

Here, the partition wall portion 160 is formed in a vertically erected manner in the same manner as the side wall portion 120 in one cartridge, but may be located at the center portion of the cartridge, unlike the side wall portion 120. In addition, the barrier ribs 160 may be located in a space between the secondary cells spaced apart from each other by a predetermined distance. That is, the partition 160 is formed in a vertical space in the inner space defined by the side part 120, so that the internal space defined by the side part 120 can be divided into two or more horizontally have. Accordingly, with respect to the cartridge provided with the partition 160, a plurality of secondary cells may be housed in a horizontal space in an internal space defined by the partition 160 and / or the side portion 120.

Particularly, the partition 160 may include a heat insulating member 130 and / or a heating member 140.

For example, as shown in Fig. 11, the heating member 140 may be provided on both sides of the partition wall portion 160. Fig. According to the present invention, heat can be supplied to the secondary battery by the heating member 140 provided in the partition wall portion 160, and no separate heating member 140 is provided in the seating portion 110 It is possible. The heat insulating member 130 may be provided on the inner surface of the side portion 120. According to this configuration of the present invention, the heat is supplied only to the inner space of the cartridge at the side of the partition wall portion 160, and the heat of the inner space may not be leaked to the outside of the cartridge by the heat insulating member 130.

In this case, the heat exchange may be reduced or blocked between the plurality of internal spaces defined by the partition 160 and the side portion 120 . Therefore, the heat of each inner space may not flow out to the other inner space.

In the various figures, the heat insulating member 130 is shown on the inner surface of the cartridge. For example, as shown in the various drawings, the heat insulating member 130 may be attached to the inner surface of the side portion 120 and / or the seating portion 110 where the secondary battery is located. According to this embodiment, the heat radiated from the secondary battery side or the heat supplied by the heating member 140 mainly comes in contact with only the heat insulating member 130, and the portion of the cartridge other than the heat insulating member 130, . Therefore, in this case, heat transfer through the substrate of the cartridge can be blocked, and the warming effect of the cartridge internal space can be enhanced. However, the present invention is not necessarily limited to these embodiments. For example, as shown in FIG. 4, the heat insulating member 130 may be provided inside the cartridge in a form embedded in the cartridge.

In the above-described embodiments, the configuration in which only one layer of the secondary battery is accommodated in one cartridge is shown, but the present invention is not necessarily limited to such an embodiment.

12 is a cross-sectional view schematically showing a configuration of a secondary battery cartridge according to another embodiment of the present invention.

Referring to Fig. 12, as in the previous embodiments, the cartridge has a side portion 120 and a seating portion 110. Fig. The side part 120 may be provided with a heat insulating member 130 and the seating part 110 may be provided with a heating member 140. However, unlike the previous embodiments, the seating portion 110 may be located at a central portion of the side portion 120, rather than at the lower end of the side portion 120. [ Therefore, as indicated by I1 and I2 in the drawing, two internal spaces are provided in one cartridge, and each of these two internal spaces can accommodate a different secondary battery.

According to this embodiment of the present invention, since two layers of secondary batteries are accommodated by only one cartridge, it is possible to stack a plurality of secondary batteries with a small number of cartridges and a fewer cartridge laminating process.

In addition, in the configuration of Fig. 12, the heating member 140 itself can constitute the seating portion 110. [ That is, the seating part 110 is formed only of the heating member 140, and may not have any other components other than the heating member 140. According to this configuration of the present invention, since the heating member 140 itself constitutes the mounting portion 110, the weight and the volume of the cartridge can be minimized, and both of the two secondary batteries stacked up and down by one heating member 140 As shown in Fig.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be understood that various modifications and changes may be made without departing from the scope of the appended claims.

In the present specification, terms indicating upward, downward, leftward, rightward, forward, and backward directions are used, but these terms are for convenience of explanation only and may vary depending on the position of an object or the position of an observer It will be apparent to those skilled in the art that the present invention is not limited thereto.

100: Cartridge
110:
120:
130:
140: heating member
150: Lower layer cover part
160:

Claims (17)

CLAIMS 1. A secondary battery cartridge for accommodating a pre-solid battery in which an electrolyte is formed in a solid state as a secondary battery,
A seating part on which at least a part of the lower part of the secondary battery is seated; And
And a side surface covering the side surface of the secondary battery,
And is capable of being laminated in the vertical direction,
Wherein the side portion is provided with a heat insulating member for preventing the side heat of the secondary battery from flowing out to the outside,
And a heating member for supplying heat to the secondary battery in the seating portion,
Wherein at least a portion of the heating member is exposed to the upper and lower portions of the seating portion.
delete The method according to claim 1,
Wherein the heat insulating member is provided on an inner surface or inside of the side surface portion. The method according to claim 1,
Wherein the heat insulating member constitutes the side surface portion. The method according to claim 1,
Characterized in that at least a part of the heat insulating member is detachable. delete The method according to claim 1,
Wherein the heating member covers at least a part of a surface of the secondary battery which is formed in a plate shape and seated in the seating portion. The method according to claim 1,
Wherein the heating member is provided on an upper surface of the seat portion. The method according to claim 1,
Wherein the heating member constitutes the seat portion.
delete The method according to claim 1,
Wherein the heat insulating member and the heating member are provided together in at least one of the seating portion and the side surface portion. 12. The method of claim 11,
Wherein the heating member is located inside the heat insulating member. 12. The method of claim 11,
Wherein the heating member is provided on the surface of the heat insulating member in the shape of a hot line. The method according to claim 1,
Further comprising a lower cover part configured to at least partially surround a side surface of the cartridge stacked on the lower side when stacked. The method according to claim 1,
Further comprising a partition wall part formed in a vertical direction in an inner space defined by the side surface part and dividing the inner space defined by the side surface part in two or more directions in the horizontal direction. 16. The method of claim 15,
Wherein the partition wall portion includes at least one of the heat insulating member and the heating member. The method according to claim 1,
Wherein the heat insulating member comprises at least one material selected from the group consisting of glass wool, EPS, XPS, polyurethane foam, water soft foam, urea foam, vacuum insulation panel, PVC, and heat reflecting material.

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