Title of the invention: Battery module, battery pack and vehicle comprising such battery module
technical field
[One]
The present invention relates to a battery module, a battery pack comprising such a battery module, and a vehicle.
[2]
This application is a priority claim application for Korean Patent Application No. 10-2019-0143743 filed on November 11, 2019, and all contents disclosed in the specification and drawings of the application are incorporated herein by reference.
background
[3]
Secondary batteries, which are easy to apply according to product groups and have electrical characteristics such as high energy density, are not only portable devices, but also electric vehicles (EVs) or hybrid vehicles (HEVs) driven by an electric drive source. It is universally applied. These secondary batteries are attracting attention as a new energy source for improving eco-friendliness and energy efficiency in that not only the primary advantage of being able to dramatically reduce the use of fossil fuels, but also the fact that no by-products are generated from the use of energy.
[4]
The types of secondary batteries currently widely used include a lithium ion battery, a lithium polymer battery, a nickel cadmium battery, a nickel hydrogen battery, a nickel zinc battery, and the like. The unit secondary battery cell, that is, the operating voltage of the unit battery cell is about 2.5V ~ 4.5V. Accordingly, when a higher output voltage is required, a plurality of battery cells are connected in series to form a battery pack. In addition, a plurality of battery cells may be connected in parallel to form a battery pack according to the charge/discharge capacity required for the battery pack. Accordingly, the number of battery cells included in the battery pack may be variously set according to a required output voltage or charge/discharge capacity.
[5]
On the other hand, when configuring a battery pack by connecting a plurality of battery cells in series/parallel, a battery module including at least one battery cell is first configured, and other components are added using the at least one battery module. A method of configuring the battery pack is common.
[6]
In the case of a conventional battery module, a plurality of battery cells are stacked together so that they can be electrically connected, and adhesives, etc. are applied to the surfaces facing each other for more stable fixing, and the like are fixed to each other.
[7]
However, in the case of a conventional battery module, it is difficult to separate the mutually fixed battery cells when replacement of some of the battery cells is required due to a defect or discharge of some of the battery cells.
[8]
In the case of a conventional battery module, in order to separate the battery cells, it is necessary to remove the adhesive applied to the opposite surfaces of the battery cells. There is a problem that a long time is required.
[9]
In addition, in the case of the conventional battery module, there is a high risk of damage to the battery cells during the removal operation, and there is a problem in that residues are frequently generated between the battery cells during removal.
[10]
Therefore, when replacement of at least some of the battery cells stacked and fixed to each other is required, a battery module capable of more easily separating desired battery cells, a battery pack including such a battery module, and a vehicle is requested to be explored.
DETAILED DESCRIPTION OF THE INVENTION
technical challenge
[11]
Accordingly, an object of the present invention is to provide a battery module capable of more easily separating desired battery cells when replacement of at least some of the battery cells stacked and fixed to each other, etc., a battery pack including such a battery module, and to provide automobiles.
[12]
In addition, another object of the present invention is to provide a battery module, a battery pack including such a battery module, and a vehicle capable of easily performing a position change of mutually stacked and fixed battery cells or rearrangement of all battery cells. will be.
means of solving the problem
[13]
In order to solve the above object, the present invention, as a battery module, a plurality of battery cells stacked on each other; and a plurality of adhesive members disposed between the plurality of battery cells and provided to be removable according to user manipulation.
[14]
The plurality of adhesive members may be provided at both ends along the longitudinal direction of the plurality of battery cells.
[15]
The plurality of battery cells may include an electrode assembly; a battery case including a case body accommodating the electrode assembly and a case terrace extending from the case body in a longitudinal direction of the battery cells; a pair of electrode leads protruding from the case terrace of the battery case and electrically connected to the electrode assembly; may be disposed at both ends of the
[16]
The remaining portions of the plurality of adhesive members may be disposed in a space between the case terraces of the plurality of battery cells.
[17]
The plurality of adhesive members may be removable from the case body in the longitudinal direction of the plurality of battery cells according to the user manipulation.
[18]
The plurality of adhesive members may slide out of the case body while sliding along the longitudinal direction of the plurality of battery cells according to the user manipulation.
[19]
The plurality of adhesive members may include adhesive portions disposed at both ends of the case body in a longitudinal direction of the plurality of battery cells; and a user manipulation unit extending from the bonding unit and disposed between the case terraces.
[20]
The adhesive part may be provided with a double-sided tape.
[21]
And, the present invention, as a battery pack, at least one battery module according to the above-described embodiments; and a pack case for packaging the at least one battery module.
[22]
In addition, the present invention provides a vehicle comprising, as a vehicle, at least one battery pack according to the above-described embodiment.
Effects of the Invention
[23]
According to various embodiments as described above, when replacement of at least some of the battery cells stacked and fixed to each other is required, a battery module capable of more easily separating desired battery cells, and a battery including such a battery module Packs and cars can be provided.
[24]
In addition, according to various embodiments as described above, there is provided a battery module capable of easily performing a position change of mutually stacked and fixed battery cells or rearrangement of all battery cells, a battery pack including such a battery module, and a vehicle. can provide
Brief description of the drawing
[25]
The following drawings attached to this specification illustrate preferred embodiments of the present invention, and serve to further understand the technical spirit of the present invention together with the detailed description of the present invention to be described later, so that the present invention is described in such drawings should not be construed as being limited only to
[26]
1 is a view for explaining a battery module according to an embodiment of the present invention.
[27]
FIG. 2 is a side view of a main part of the battery module of FIG. 1 ;
[28]
FIG. 3 is a view for explaining an adhesive member of the battery module of FIG. 2 .
[29]
FIG. 4 is a view for explaining an adhesive member according to another embodiment of the battery module of FIG. 2 .
[30]
5 and 6 are views for explaining a state in which the adhesive member of the battery module of FIG. 1 is removed.
[31]
7 is a view for explaining a battery pack according to an embodiment of the present invention.
[32]
8 is a view for explaining a vehicle according to an embodiment of the present invention.
Modes for carrying out the invention
[33]
The present invention will become more apparent by describing in detail preferred embodiments of the present invention with reference to the accompanying drawings. It should be understood that the embodiments described herein are illustratively shown to aid understanding of the invention, and the present invention may be implemented with various modifications different from the embodiments described herein. In addition, in order to help understanding of the invention, the accompanying drawings are not drawn to scale, but dimensions of some components may be exaggerated.
[34]
1 is a view for explaining a battery module according to an embodiment of the present invention, FIG. 2 is a side view of a main part of the battery module of FIG. 1, and FIG. 3 is a view for explaining an adhesive member of the battery module of FIG. and FIG. 4 is a view for explaining an adhesive member according to another embodiment of the battery module of FIG. 2 .
[35]
1 to 4 , the battery module 10 may include a battery cell 100 and an adhesive member 300 .
[36]
The battery cell 100 is a secondary battery, and may be provided as a pouch-type secondary battery, a prismatic secondary battery, or a cylindrical secondary battery. Hereinafter, in this embodiment, the battery cell 100 will be described by limiting it to a pouch-type secondary battery.
[37]
The battery cell 100 may be provided in plurality.
[38]
The plurality of battery cells 100 may be stacked to be electrically connected to each other. Here, the plurality of battery cells 100 may be stacked more stably by being adhered to each other through an adhesive member 100 , which will be described later, for more stable fixation to each other. Although not shown, the plurality of battery cells 100 may be accommodated in a structure such as a module case constituting the battery module 10 .
[39]
Each of the plurality of battery cells 100 may include an electrode assembly 110 , a battery case 130 , and an electrode lead 150 .
[40]
The electrode assembly 110 may include a positive electrode plate, a negative electrode plate, and a separator. Since the electrode assembly 110 is well known, a detailed description thereof will be omitted below.
[41]
The battery case 130 accommodates the electrode assembly 110 , and at least partially accommodates a pair of electrode leads 150 to be described later to protrude out of the battery case 130 .
[42]
The battery case 130 may include a case body 132 and a case terrace 136 .
[43]
The case body 132 may accommodate the electrode assembly 110 . To this end, an accommodation space for accommodating the electrode assembly 110 may be provided in the case body 132 .
[44]
The case terrace 136 may extend from both ends of the case body 132 , and may extend from the case body 132 in a longitudinal direction of the battery cells 100 .
[45]
The case terrace 136 may have a lower height than the case body 132 in the stacking direction of the battery cells 100 . Accordingly, when the battery cells 100 are stacked, a predetermined space may be provided between the case terraces 136 in the stacking direction.
[46]
The electrode leads 150 may be provided as a pair.
[47]
The pair of electrode leads 150 may be electrically connected to the electrode assembly 110 and protrude from the case terrace 136 of the battery case 130 .
[48]
The adhesive member 300 is disposed between the plurality of battery cells 100 , and is adhered to the plurality of battery cells 100 when the plurality of battery cells 100 are stacked. ) can be fixed more stably.
[49]
The adhesive member 300 may be provided in plurality.
[50]
The plurality of adhesive members 300 may improve insulation of the plurality of battery cells 100 and temperature deviation of the plurality of battery cells 100 between the plurality of battery cells 100 .
[51]
The plurality of adhesive members 300 are disposed between the plurality of battery cells 100 , respectively, and may be provided to be removable from the plurality of battery cells 100 according to a user operation.
[52]
The plurality of adhesive members 300 may be provided at both ends along the longitudinal direction of the plurality of battery cells 100 . Specifically, a portion 310 of the plurality of adhesive members 300 may be disposed at both ends of the case body 132 in the longitudinal direction of the plurality of battery cells 100 , and the plurality of adhesive members The remaining part 330 of 300 may be disposed in a space between the case terraces 136 of the plurality of battery cells 100 .
[53]
The plurality of adhesive members 300 may be detachably provided outside the case body 132 in the longitudinal direction of the plurality of battery cells 100 according to the user manipulation. Specifically, the plurality of adhesive members 300 may slide out of the case body 132 while sliding along the longitudinal direction of the plurality of battery cells 100 according to the user manipulation.
[54]
Hereinafter, the plurality of adhesive members 300 according to this embodiment will be described in more detail.
[55]
The plurality of adhesive members 300 may include an adhesive part 310 and a user manipulation part 330 , respectively.
[56]
The adhesive part 310 may be disposed at both ends of the case body 132 of the battery case 130 in the longitudinal direction of the plurality of battery cells 100 . In addition, the adhesive part 310 may be disposed to be spaced apart from each other by a predetermined distance along the width direction of the plurality of battery cells 100 at both ends of the case body 132 .
[57]
The adhesive part 310 may be provided as a double-sided tape, and when the plurality of battery cells 100 are stacked, case bodies of the battery case 130 of the battery cells 100 facing in the stacking direction ( 132). In this embodiment, since the adhesive part 310 is provided with a double-sided tape, non-transfer or agglomeration may not occur.
[58]
The adhesive part 310 may be provided in a substantially triangular inclined shape toward the center of the case body 132 of the battery case 130 of the battery cell 100 . Accordingly, when the adhesive member 300 is removed, the removal of the adhesive member 300 from the case body 132 may be more easily performed.
[59]
The user manipulation unit 330 extends from the adhesive unit 310 , and in the stacking direction of the plurality of battery cells 100 , the case of the battery cases 130 of the plurality of battery cells 100 . It may be disposed in the space between the terraces 136 . Accordingly, when the adhesive member 300 is removed, a user operation for removing the adhesive member 330 may be more easily performed.
[60]
Meanwhile, as shown in FIG. 4 , the adhesive member 350 may be provided at both ends of the battery case 130 of the battery cell 100 , respectively. The adhesive member 350 is adhered to both ends of the case body 132 of the battery case 130 , and the adhesive part 310 and the adhesive part 310 are detached from the case body 132 according to the user's manipulation. ), and may include a user manipulation unit 353 for the user manipulation.
[61]
5 and 6 are views for explaining a state in which the adhesive member of the battery module of FIG. 1 is removed.
[62]
5 and 6 , in the case of the battery module 10 , a defect or discharge may occur in at least one of the battery cells 100 during manufacture or use. Accordingly, it may be necessary to replace the defective or discharged battery cell 100 .
[63]
In the present embodiment, a user such as an operator, through a user operation on the adhesive members 300 of the battery cell 100 to be replaced among the battery cells 100 of the battery module 10, The fixed state between the battery cell 100 and the other battery cells 100 can be released more easily.
[64]
Specifically, the user, etc., more conveniently remove the adhesive members 300 by pulling out the user manipulation units 330 of the adhesive members 300 attached to the battery cell 100 to be replaced. It can be removed from the battery cell 100 .
[65]
That is, in this embodiment, the user can more easily remove the adhesive members 300 from the battery cells 100 by a simple operation of the user manipulation unit 330 of the adhesive members 300 . can
[66]
Accordingly, in this embodiment, when replacing some of the battery cells 100 during manufacture or use, the separation operation of the battery cells 100 for the replacement can be significantly simplified, Working time, also, can be significantly reduced.
[67]
In addition, since the adhesive part 310 of the adhesive member 300 is in contact only with the edges of both ends of the case body 132 of the battery case 130 of the battery cell 100, when removed, the battery cells 100 It can significantly reduce the risk of residues in between.
[68]
In addition, in the present embodiment, when the adhesive member 300 is removed, the use of a separate remover for removing the adhesive applied to the battery cell 100 may hardly be required, and the battery cells 100 . ) can also be minimized.
[69]
After all, the battery module 10 according to this embodiment, through the adhesive member 300, both the assembly process efficiency according to the manufacturing of the battery module 10 and the management efficiency of the battery module 10 o later can be significantly improved.
[70]
7 is a diagram for explaining a battery pack according to an embodiment of the present invention, and FIG. 8 is a diagram for explaining a vehicle according to an embodiment of the present invention.
[71]
7 and 8 , the battery pack 1 may include at least one battery module 10 according to the previous embodiment and a pack case 50 for packaging the at least one battery module 10 . can
[72]
The battery pack 1 may be provided in the vehicle V as a fuel source for the vehicle V. By way of example, the battery pack 1 may be provided in the vehicle V in an electric vehicle, a hybrid vehicle, and other ways in which the battery pack 1 may be used as a fuel source.
[73]
Also, of course, the battery pack 1 may be provided in other devices, devices, and facilities, such as an energy storage system using a secondary battery, in addition to the vehicle V.
[74]
As such, the device, apparatus, and equipment including the battery pack 1 and the battery pack 1 such as the vehicle V according to the present embodiment include the battery module 10 described above. A battery pack 1 having all the advantages of one battery module 10 and a device, apparatus, and equipment such as a vehicle V having such a battery pack 1 can be implemented.
[75]
According to various embodiments as described above, when it is necessary to replace at least some of the battery cells 100 that are stacked and fixed to each other, it is possible to more easily separate the desired battery cells 100 . A module 10 , a battery pack 1 including such a battery module 10 , and a vehicle V may be provided.
[76]
In addition, according to various embodiments as described above, the battery module 10 capable of easily performing a position change of the stacked and fixed battery cells 100 or rearrangement of the entire battery cells 100 , such a battery A battery pack 1 including a module 10 and a vehicle V may be provided.
[77]
In the above, preferred embodiments of the present invention have been illustrated and described, but the present invention is not limited to the specific embodiments described above, and it is common in the technical field to which the present invention pertains without departing from the gist of the present invention as claimed in the claims. Various modifications may be made by those having the knowledge of, of course, and these modifications should not be individually understood from the technical spirit or perspective of the present invention.
Claims
[Claim 1]
A battery module comprising: a plurality of battery cells stacked on each other; and a plurality of adhesive members disposed between the plurality of battery cells and provided to be removable according to a user manipulation.
[Claim 2]
The battery module according to claim 1, wherein the plurality of adhesive members are provided at both ends of the plurality of battery cells in a longitudinal direction.
[Claim 3]
According to claim 2, wherein the plurality of battery cells, electrode assembly; a battery case including a case body accommodating the electrode assembly and a case terrace extending from the case body in a longitudinal direction of the battery cells; a pair of electrode leads protruding from the case terrace of the battery case and electrically connected to the electrode assembly; A battery module, characterized in that disposed on both ends of the.
[Claim 4]
The battery module according to claim 3, wherein the remaining portions of the plurality of adhesive members are disposed in a space between the case terraces of the plurality of battery cells.
[Claim 5]
The battery module according to claim 3, wherein the plurality of adhesive members are detachable from the case body in the longitudinal direction of the plurality of battery cells according to the user manipulation.
[Claim 6]
The battery module according to claim 5, wherein the plurality of adhesive members slide out of the case body while sliding along the longitudinal direction of the plurality of battery cells according to the user manipulation.
[Claim 7]
According to claim 3, wherein the plurality of adhesive members, Adhesive portions disposed at both ends of the case body in a longitudinal direction of the plurality of battery cells; and a user manipulation unit extending from the bonding unit and disposed between the case terraces.
[Claim 8]
The battery module according to claim 8, wherein the adhesive part is provided with a double-sided tape.
[Claim 9]
at least one battery module according to claim 1; and a pack case for packaging the at least one battery module.
[Claim 10]
A vehicle comprising a; at least one battery pack according to claim 9 .