[1]The present invention relates to a battery pack and a power storage device including the battery module, it.
[2]This application claims priority to an application on the Korea Patent Application No. 10-2017-0096808, filed as 07 31st, 2017, all contents disclosed in the specification and drawings of that application are incorporated in this application by reference.
BACKGROUND
[3]High application ease according to the product line, the electric vehicle driven by a secondary battery, an electrical drive source, as well as a portable device having an electrical characteristic, such as high energy density (EV, Electric Vehicle) or a hybrid vehicle (HEV, Hybrid Electric Vehicle) or the like It has been applied universally. These rechargeable batteries are not only the primary advantage of being able to reduce the use of fossil fuels dramatically attracting attention as a new energy source for environmentally friendly and energy efficiency in that the by-products of the use of energy does not occur at all.
[4]Type of secondary battery is now widely used, there are lithium ion batteries, lithium polymer batteries, nickel cadmium batteries, nickel hydrogen batteries, nickel zinc batteries. Operating voltage of this unit secondary battery cells, that is, the unit battery cell is about 2.5V ~ 4.6V. Thus, more than if the required high output voltage by connecting a plurality of battery cells in series and also configure the battery pack. In addition, the parallel connection of a plurality of battery cells in accordance with the charge-discharge capacity required for the battery pack, and also configure the battery pack. Therefore, the number of battery cells included in the battery pack may be variously set according to the output voltage required, or charge-discharge capacity.
[5]
On the other hand, if you want to configure the battery pack by connecting a plurality of battery cells in series / parallel, and at least one of the battery cells constituting the formed battery module first, and this at least one of the battery pack is added to the other components using a battery module this is a general method to configure. Here, the battery cells constituting the battery module or the battery pack are generally easily provided to the pouch type secondary battery having the advantage of being able to cross-stacked.
[6]In the case of the conventional battery module or battery pack, due to the risk of fire or explosion or the like in accordance with the heating of the battery cell, it is important above all the release of heat generated from the battery cells.
[7]In addition, the battery cells disposed within the battery module or the battery pack may need to be itgie a fire or risk of explosion, etc., the module case fixed more stably in accordance with an external impact.
[8]In the case of the battery module is a battery pack, in terms of energy density, when viewed from the side that the process efficiency, the glass having a more compact structure, it is desirable to have a simpler and more compact structure.
Detailed Description of the Invention
SUMMARY
[9]Accordingly, it is an object of the present invention is to provide a battery pack and a power storage device including the same battery module, capable of emitting more effectively than the heat generated from the battery cells.
[10]
In addition, another object of the present invention is to provide a battery module, the battery pack and the electric power storage device including the same that can be fixed in a more stable than the battery cell in a module case.
[11]Moreover, a purpose according to the present invention is to provide a more compact structure of the battery module, the battery pack including the same, and power storage device having high energy density and a more efficient process.
Problem solving means
[12]In order to solve the above object, the present invention provides a battery module, a plurality of battery cells; And the plurality of module case for accommodating a battery cell; a battery module comprising: a; includes, the module case, mutual hooking combined and mutually corresponding two first and second cases of shape to provide.
[13]The first and second cases, each horizontal section having a predetermined area; It may comprise; and a vertical portion vertically bent from the horizontal section.
[14]The horizontal portion of the first case, the second and mutual hooking engaged with the vertical portion of the case, the vertical portion of the first case, wherein the hooks may be bonded to each other and the horizontal portion of the second case.
[15]The first and second case, the at least one forming portion that is the forming of at least two stages; a can be formed.
[16]The at least one forming section, respectively, forming a first groove in which engages the edge portion of the battery cell, formed in a longitudinal direction of the first and second cases; And the first is formed to be stepped from the first forming grooves at both ends of the forming groove, forming the second groove to restrict a flow of the battery cell; may contain.
[17]
Said first forming groove, and having a plurality pieces, the plurality of first forming the grooves can be arranged spaced apart from each other along the stacking direction of the battery cell.
[18]
The second forming groove, and having a plurality pieces, and the second plurality of forming the grooves can be formed on both ends of the plurality of first groove forming.
[19]
The present invention provides a battery pack, a plurality of battery modules according to the embodiments described above; comprises, in each of the module case of the plurality of battery modules, at least one of the module case and the mutual zigzag arrangement thereof facing provides a battery pack, characterized in that the formation; the bead.
[20]
In addition, the present invention provides a electric power storage apparatus, comprising: at least one battery pack according to the above embodiment; provides a power storage device comprising a.
Effects of the Invention
[21]
In accordance with various embodiments as described above, it is possible to provide a battery pack and a power storage device that includes capable of emitting heat generated from the battery cells more effectively than the battery modules, this.
[22]
In addition, it is possible to provide a battery module, the battery pack and the electric power storage device including the same that may, be more stably fixed than the battery cell in a module case, according to various embodiments of the present invention.
[23]
Further, in accordance with various embodiments of the present invention, it is possible to provide a more compact structure of the battery module, the battery pack including the same, and power storage device having high energy density and a more efficient process.
Brief Description of the Drawings
[24]
Intended to illustrate the following figures attached to the specification are exemplary of the invention, the components which serve to further understand the spirit of the invention and together with the description of which will be described later invention, the details of this invention is described in such figures be construed as limited only is not.
[25]
1 is a view illustrating a battery module according to an embodiment of the present invention.
[26]
2 is a cross-sectional view of the battery module of Figure 1;
[27]
Figure 3 is an enlarged view of a portion A of the battery module of Figure 2;
[28]
4 is a plan view of the battery module of Figure 1;
[29]
5 is a cross-sectional view of the battery module of FIG.
[30]
Figure 6 is an enlarged view of the B portion of the battery module of FIG.
[31]
7 and 8 are views for explaining the assembly of the battery module of Figure 1;
[32]
9 and 10 are a view illustrating a battery pack according to an embodiment of the present invention.
Mode for the Invention
[33]
The invention will be more apparent by describing in detail a preferred embodiment of the present invention with reference to the accompanying drawings. Embodiment described herein examples are illustrative as shown for better understanding of the invention, the invention is to be understood that the same may be practiced with different embodiments and various modifications described herein. Further, the appended drawings are not illustrated to scale it can be shown to be the dimensions of some of the components exaggerated for a better understanding of the invention.
[34]
1 is a view illustrating a battery module according to an embodiment of the present invention, Figure 2 is a cross-sectional view of the battery module of Figure 1, Figure 3 is an enlarged view of a portion A of the battery module of Figure 2, Figure 4 is a top plan view of the battery module of Figure 1, Figure 5 is a cross-sectional view of the battery module of Figure 4, Figure 6 is an enlarged view of the B portion of the battery module of FIG.
[35]
When 1 to 6, the battery module 10 and may include a battery cell 100 and a module case (200).
[36]
The battery cell 100, a secondary battery, may be provided to the pouch type secondary battery. Such the battery cell 100 can be provided with multiple pieces, the plurality of battery cells 100 may be stacked able to be connected to each other electrically.
[37]
The module case 200 may include that for accommodating the plurality of battery cells 100, a first case 210 and second case 230, the forming section 250 and the bead 270 .
[38]
The first case 210 may be formed of a plate shape of a substantially L-shape. The first case 210, the second case 230 and the mutual hooking coupling to be described later it is possible to accommodate the plurality of battery cells (100).
[39]
The first case 210 may be provided from a material having a high thermal conductivity can be increased by heat radiation efficiency. By way of example, the first case 210 may be formed of aluminum.
[40]
The first case 210 may include a horizontal portion 212 and vertical portion 216.
[41]
The horizontal portion 212 may have a substantially plate shape having a predetermined area. The vertical portion 216 may be bent perpendicularly from the horizontal portion 212. Through these the horizontal portion 212 and the vertical portion 216 of the first case 210 may be formed in the plate shape of the L-shape.
[42]
The second case 230 may accommodate the first casing may have a shape corresponding to the (210), the first casing 210 and the mutual hooking coupled to the battery cells 100.
[43]
The second case 230, and may include a horizontal portion 232 and vertical portion 236.
[44]
As described above, the horizontal portion 232, and the horizontal portion 212 of the first case 210, may have a substantially plate shape having a predetermined area. In addition, the vertical part 236, and, as the vertical part 216 of the first case 210 and may be vertically bent from the horizontal section 232. Through these the horizontal portion 232 and the vertical portion 236 and the second case 230, and may also, to form an L-shaped plate-like shape of which corresponds to the first case 210.
[45]
With respect to the hook coupling, and more particularly to look through, the first case 210, the horizontal portion 212 is cross-hook and the vertical portion 236 of the second casing 230 of the coupling, and the first case the vertical part of 210 216 may be bonded to each other and hooking the horizontal portion 232 of the second case 230. the
[46]
For this hooking coupling each end portion may be a hook is provided. By way of example, as shown in Figure 3, wherein the first case 210, the end 213 of the horizontal portion 212 is formed with a hook for hooking a bond, the second case 230 of the end of the vertical portion 236, 237 may be the end portion 213 and the hook is a hook engaging the horizontal portion 212 is formed.
[47]
In this embodiment, only these hooking coupling assembly process efficiency of the first and second cases 210 and 230 to because it can be coupled together, the module case 200 constituting the module case 200 can be improved have.
[48]
The forming section 250 may be provided to form grooves having a predetermined depth to provide for supporting the battery cells 100 in a more reliable, the first and second cases 210 and 230. Such a forming section 250 may be forming in at least two stages, may be provided in plural pieces.
[49]
The plurality of forming portions 250 are formed on the horizontal portions (212, 232) of the first and second cases 210 and 230, it may be arranged spaced apart from each other by a predetermined distance. The plurality of forming portions 250, respectively, may include a first forming groove 252 and the second forming groove (256).
[50]
It said first forming groove 252 is engaged with an edge of the battery cells 100 may be formed along the longitudinal direction of the first and second cases 210 and 230. The first forming groove 252 is provided with multiple pieces, may be arranged spaced apart from each other along the stacking direction of the battery cells 100.
[51]
Said plurality of first forming groove 252, while fixing the, the battery cells 100 to be in close contact with the edge portion of the battery cells 100 in the stacking direction of the battery cells 100 in a more stable the it is possible to prevent the flow of battery cells (100) effectively.
[52]
Said plurality of first forming groove 252 may be formed to have a shape corresponding to an edge of the battery cells 100. Accordingly, the battery cells 100 is in the assembly position the positioning of the module case, wherein the first and second cases 210 and 230, the battery cells 100 when it engages in the 200 can be more readily than have.
[53]
The second forming groove 256, and may be at both ends of the first forming groove 252 formed to be stepped from the first forming groove 252. The second forming groove 256, is provided with a plurality pieces, the plurality of second forming groove 256 may be formed at both ends of the plurality of first forming groove (143).
[54]
Said plurality of second forming groove 256, a stopper may serve to limit flow of the battery cells 100 that may be generated in the left-right direction both sides of the battery cells 100.
[55]
The beads 270 may be formed on the module as for improving the heat dissipation efficiency of the case 200, the first and second cases the vertical part (216, 236) of (210, 230).
[56]
On the other hand, such a bead 270 may be formed to be placed thereby a plurality of battery module 10, the bead 270 of the module case 200 and the cross member facing the assembly jig. With this arrangement, when connecting the battery modules 10 pieces plurality, the beads 270 can prevent interference between the well as a non-uniform with the battery cells 100 inside the module case 200 It can be prevented to provide a compressive force.
[57]
7 and 8 are views for explaining the assembly of the battery module of Figure 1;
[58]
7 and 8, during assembly of the battery cells 100 and the module housing 200, for example, the battery cells 100 is the forming portions 250 of the second casing 230 fitted tightly, respectively it can be fixed to. Wherein when the second case 230, the mounting of the battery cells 100 is completed, the first case 210 may be hook coupled to the second case 230, at this time, the first case (210 ) there is an edge of the battery cells 100 in the foaming portions 250 can be fitted tightly in.
[59]
Here, when the hooking coupling is completed, and in the first case 210 and second case 230 may be fixed to the battery cells 100 in a stable manner. Accordingly, it is possible with the battery module 10 is the simpler structure of the present embodiment to hold and receive said battery cells 100, it is possible to implement an advantageous and compact structure than in the thinner side and the energy density.
[60]
In addition, the first and second cases 210 and 230 forming portions 250 is when heat generation of the battery cells 100 to be disposed in close contact with the edge portion of the battery cells 100 of the module case ( 200) can be faster than the transfer side. Accordingly, the battery module 10 according to this embodiment may emit heat generated from the battery cells 100 effectively.
[61]
9 and 10 are a view illustrating a battery pack according to an embodiment of the present invention.
[62]
Even when 9 and 10, the battery pack 1, can be provided in the power storage device to be used in electric vehicles, automobiles such as hybrid vehicles, domestic or industrial. The above-mentioned battery pack 10, may be provided as an assembly of a plurality of battery modules (10). Here, it can not cause interference to the bead of the module case 200 of the battery modules 10 which face 270 is between the cross-member when the jig, both laminated to each other are arranged thereof.
[63]
Here, in the arrangement thereby mutually zigzag of battery modules (10) facing the bead 270, in this embodiment, in a side-by-side with each other above and below bead 270 is non-uniformity in the side of the battery cells with no crosstalk It does not cause a compression.
[64]
According to various embodiments as described above, it is possible to provide a battery pack 1 and the power storage device that includes battery cells, the battery module 10 that can be emitted more effectively the heat generated in 100, it .
[65]
In addition, according to various embodiments of the invention, the module case 200, the battery module 10 can be more stably fixed than the battery cells 100 in the battery pack 1 and the power storage comprising the same it is possible to provide a device.
[66]
Further, in accordance with various embodiments of the present invention, it is possible to provide a more compact structure of the battery module 10, the battery including the same pack 1 and the power storage device than with a high energy density and the process efficiency.
[67]
And later, although shown and described with respect to preferred embodiments of the invention, the invention is not limited to the embodiments of the described, conventional in the art the art without departing from the subject matter of the present invention invention claimed in the claims It is capable of many variations performed by a person having knowledge of course, and this modified embodiment, will be not dwaeseo individually understood from the technical spirit or prospect of the present invention.

WE CLAIMS

[Claim 1]In the battery module, a plurality of battery cells; And a module case accommodating the plurality of battery cells; includes, the module case, mutual hooking binding and cross the two first and second cases of corresponding shape; battery module comprising: a.
[Claim 2]
The method of claim 1, wherein the first and second cases, each horizontal section having a predetermined area; The battery module comprises a; and a vertical portion vertically bent from the horizontal section.
[Claim 3]
The method of claim 2, wherein the horizontal portion, the first and coupled vertical section and cross-hooking of the second case, the vertical portion of the first case, characterized in that the combined cross-hooking the horizontal portion of the second case of the first case battery module.
[Claim 4]
The method of claim 1, wherein the first and second cases include at least one of the forming section which is the forming of at least two stages; battery module wherein a formation.
[Claim 5]
The method of claim 4, wherein the at least one forming section, respectively, forming a first groove in which engages the edge portion of the battery cell, formed in a longitudinal direction of the first and second cases; And the first is formed to be stepped from the first forming grooves at both ends of the forming groove, forming the second groove to restrict a flow of the battery cell; battery module comprising: a.
[Claim 6]
According to claim 5 wherein the first forming groove, and having a plurality pieces, the plurality of first forming the grooves, a battery module that is arranged spaced apart from each other along the stacking direction of the battery cell.
[Claim 7]
The method of claim 6, wherein the second groove-forming, open-circuit is provided plurality, the second plurality of grooves forming, battery modules, characterized in that formed on both ends of the plurality of first groove forming.
[Claim 8]
That is formed; in the battery pack, a plurality of battery modules according to claim 1; comprises, in each of the module case of the plurality of battery modules, and the module case at least one bead, which are mutually zigzag arrangement thereof facing the battery pack as claimed.
[Claim 9]
At least one battery pack according to claim 8; power storage device comprising a