Title of Invention: Secondary battery pressurization device and pressurization method
technical field
[One]
Cross Citation with Related Applications
[2]
This application claims the benefit of priority based on Korean Patent Application No. 10-2020-0017844 dated February 13, 2020, and all contents disclosed in the documents of the Korean patent application are incorporated as a part of this specification.
[3]
technical field
[4]
The present invention relates to a secondary battery pressurizing device and pressurizing method for pressurizing a secondary battery.
background
[5]
In general, a secondary battery refers to a battery capable of charging and discharging unlike a primary battery that cannot be charged, and such secondary batteries are widely used in high-tech electronic devices such as phones, notebook computers, and camcorders.
[6]
The secondary battery is classified into a can-type secondary battery and a pouch-type secondary battery, and the pouch-type secondary battery includes an electrode assembly, an electrolyte, and a pouch for accommodating the electrode assembly and the electrolyte. And the electrode assembly has a structure in which electrodes and separators are alternately stacked. And the pouch includes a accommodating part for accommodating the electrode assembly and a sealing part for sealing the accommodating part.
[7]
On the other hand, the secondary battery is pressurized with a uniform pressure to improve performance and extend life. In this case, the secondary battery has a problem in that the sealing part of the pouch is vented by the gas pressure generated inside the pouch.
DETAILED DESCRIPTION OF THE INVENTION
technical challenge
[8]
The present invention was invented to solve the above problems, and the present invention is that the sealing part is vented by the gas pressure generated in the receiving part included in the pouch by pressing the sealing part included in the pouch together when the secondary battery is pressurized. An object of the present invention is to provide a secondary battery pressurizing device and pressurizing method capable of stably pressurizing the secondary battery, thereby improving performance and extending the lifespan.
means of solving the problem
[9]
A secondary battery pressurizing device of the present invention for achieving the above object includes a disposing member on which a secondary battery including an electrode assembly and a pouch is disposed; and a pressing member for pressing the secondary battery disposed on the disposing member, wherein the pressing member pressurizes the receiving part for pressing the receiving part of the pouch in which the electrode assembly is accommodated among the pouches of the secondary battery disposed on the disposing member a jig, and a sealing part pressing jig for pressing a sealing part formed along an edge surface of the accommodating part among the pouches of the secondary battery disposed on the disposing member, wherein the sealing part pressing jig is the accommodating part corresponding to the sealing part It is coupled to the surface of the pressing jig, it is possible to press the sealing portion through the pressing force transmitted from the receiving portion pressing jig.
[10]
The sealing part pressing jig may be formed while assembling a plurality of pressing blocks having an area corresponding to the sealing part.
[11]
The plurality of pressing blocks include a first pressing block coupled to the receiving unit pressing jig, a second pressing block pressing the sealing unit, and at least one third pressing disposed between the first pressing block and the second pressing block. It may contain blocks.
[12]
The first and second pressing blocks may have greater rigidity than the third pressing block.
[13]
The third pressing block may be formed of a material having an elastic restoring force.
[14]
A plurality of pressing protrusions may be formed on the pressing surface of the second pressing block for pressing the sealing part to press the sealing part in multiple stages.
[15]
The sealing part pressing jig may be detachably coupled to the receiving part pressing jig.
[16]
The sealing part pressing jig may be coupled to a position adjustable in a direction toward the center of the receiving part pressing jig or in an opposite direction.
[17]
The pressing surface of the receiving unit pressing jig for pressing the receiving unit of the pouch may include an elastic member for elastically pressing the pouch receiving unit.
[18]
On the other hand, the secondary battery pressurizing method of the present invention includes a disposing step (S10) of disposing a secondary battery including an electrode assembly and a pouch on a disposing member; and a pressing step (S20) of pressing the secondary battery disposed on the disposing member with a pressing member, wherein the pressing step (S20) includes the pouch in which the electrode assembly is accommodated among the pouches of the secondary battery disposed on the disposing member. A first pressing step of pressing the receiving portion of the pressing member with the receiving portion pressing jig of the pressing member, and the sealing portion formed along the edge surface of the receiving portion among the pouches of the secondary battery disposed on the placement member as the sealing portion pressing jig of the pressing member and a second pressing step of pressing, wherein the sealing unit pressing jig may press the sealing unit with a pressing force transmitted from the receiving unit pressing jig while being coupled to the receiving unit pressing jig corresponding to the sealing unit.
[19]
Between the disposing step (S10) and the pressing step (S20), an assembling step (S15) of assembling the sealing part pressing jig is further included, and the assembling step (S15) has an area corresponding to the sealing part. Prepare a plurality of pressing blocks, the plurality of pressing blocks may include a first pressing block, a second pressing block, and one or more third pressing blocks.
[20]
In the assembling step (S15), the first pressing block is coupled to the receiving part pressing jig, and the second pressing block for pressing the sealing part is disposed on the outside of the first pressing block, and then the first and The sealing part pressing jig may be assembled by disposing one or more third pressing blocks between the second pressing blocks.
[21]
The first and second pressing blocks may be made of a material having greater rigidity than the third pressing block, and the third pressing block may be made of a material having elastic restoring force.
[22]
Between the assembling step (S15) and the pressing step (S20), a coupling step (S17) of coupling the sealing part pressing jig to the receiving part pressing jig is further included, and the coupling step (S17) is, the arrangement member The sealing part pressing jig is disposed on the surface of the receiving part pressing jig corresponding to the sealing part of the pouch disposed on the The pressing jig is coupled to the receiving unit pressing jig, but the position of the sealing unit pressing jig may be adjusted by moving the bolt within the long hole.
[23]
The pressing step (S20) may further include a step of coupling an elastic member for elastically pressing the pouch receiving part to the pressing surface of the receiving part pressing jig for pressing the receiving part of the pouch.
Effects of the Invention
[24]
The secondary battery pressing device of the present invention includes an arrangement member and a pressing member, wherein the pressing member includes a receiving part pressing jig and a sealing part pressing jig. Due to such a feature, it is possible to simultaneously pressurize the receiving part and the sealing part of the pouch, and accordingly, it is possible to prevent the sealing part from being vented by the gas pressure generated in the receiving part, and as a result, it is possible to stably improve the performance and lifespan of the secondary battery. can
[25]
In addition, in the secondary battery pressurizing device of the present invention, the sealing part pressurizing jig is characterized in that it is formed while assembling a plurality of pressurizing blocks. Due to such a feature, the sealing unit pressing jig can be assembled at the same height as the sealing unit height of the pouch, thereby increasing compatibility.
[26]
In addition, in the secondary battery pressurizing device of the present invention, the plurality of pressurizing blocks include first and second pressurizing blocks and a third pressurizing block disposed therebetween, wherein the first and second pressurizing blocks are the third pressurizing blocks. It is characterized by having greater rigidity. Due to such a feature, it is possible to prevent the pressing surface of the sealing unit pressing jig pressing the sealing unit from being deformed, and accordingly, it is possible to stably press the sealing unit of the pouch.
[27]
In addition, in the secondary battery pressing device of the present invention, the third pressing block is characterized in that it is formed of a material having elastic restoring force. Due to such a feature, it is possible to elastically press the sealing part of the pouch, and as a result, it is possible to prevent the sealing part from being damaged.
[28]
In addition, it is characterized in that a plurality of pressing protrusions are formed on the pressing surface of the second pressing block for pressing the sealing part in the secondary battery pressing device of the present invention. Due to such a feature, it is possible to press the sealing portion of the pouch in multiple stages, and as a result, it is possible to significantly prevent venting of the sealing portion.
[29]
In addition, in the secondary battery pressurizing device of the present invention, the sealing unit pressurizing jig is characterized in that it is detachably coupled to the receiving unit pressurizing jig. Due to these features, the ease of maintenance can be improved, and the sealing part pressurizing jig having various sizes and areas can be replaced, so that compatibility can be improved.
[30]
In addition, in the secondary battery pressing device of the present invention, it is characterized in that an elastic member is provided on the pressing surface of the receiving portion pressing jig for pressing the receiving portion of the pouch. Due to such a feature, it is possible to elastically press the receiving portion of the pouch, and in particular, it is possible to prevent damage to the receiving portion and the occurrence of marks.
Brief description of the drawing
[31]
1 is an exploded perspective view showing a secondary battery pressurizing device according to a first embodiment of the present invention.
[32]
Fig. 2 is a cross-sectional view of Fig. 1;
[33]
Figure 3 is an exploded perspective view showing a sealing part pressing jig of the secondary battery pressing device according to the first embodiment of the present invention.
[34]
Fig. 4 is a cross-sectional view of Fig. 3;
[35]
5 is a perspective view showing a coupling structure of the receiving unit pressing jig and the sealing unit pressing jig of the secondary battery pressing device according to the first embodiment of the present invention.
[36]
6 is a flowchart illustrating a secondary battery pressurizing method according to a first embodiment of the present invention.
[37]
7 is a cross-sectional view showing an elastic member in the secondary battery pressing method according to the first embodiment of the present invention.
[38]
8 is a cross-sectional view showing a secondary battery pressurizing device according to a second embodiment of the present invention.
[39]
9 is a cross-sectional view showing a secondary battery pressurizing device according to a third embodiment of the present invention.
[40]
10 is a cross-sectional view showing another embodiment of the secondary battery pressurizing device according to the third embodiment of the present invention.
[41]
11 is a perspective view illustrating a secondary battery pressurizing device according to a fourth embodiment of the present invention.
[42]
12 is a perspective view showing a secondary battery pressurizing device according to a fifth embodiment of the present invention.
Best mode for carrying out the invention
[43]
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily carry out the present invention. However, the present invention may be embodied in several different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.
[44]
[Secondary battery of the present invention]
[45]
As shown in FIG. 1, the secondary battery 10 of the present invention is connected to an electrode assembly 11, a pouch 12 accommodating the electrode assembly 11, and the electrode assembly 11, and the tip is and an electrode lead 13 drawn out of the pouch.
[46]
The electrode assembly 11 has a structure in which electrodes and separators are alternately stacked, and the pouch 12 has a receiving portion 12a for accommodating the electrode assembly 11 and an edge surface of the receiving portion 12a. It includes a sealing portion (12b) provided along the receiving portion (12a) for sealing.
[47]
Meanwhile. The secondary battery 10 having the above structure is pressurized with a uniform pressure to extend battery performance and lifespan. In this case, the pressurizing device according to the first embodiment of the present application is used. In particular, the pressurizing device according to the first embodiment of the present application presses the receiving portion 12a and the sealing portion 12b of the pouch 12 together, thereby preventing the sealing portion 12b from being vented when the secondary battery is pressurized. As a result, the secondary battery 10 can be uniformly pressurized to improve battery performance and lifespan.
[48]
Hereinafter, a secondary battery pressurizing device according to a first embodiment of the present application will be described in detail.
[49]
[Secondary battery pressurization device according to the first embodiment of the present invention]
[50]
As shown in FIGS. 1 to 5 , the secondary battery pressurizing device 100 according to the first embodiment of the present invention includes a secondary battery 10 including an electrode assembly 11 and a pouch 12 . The arrangement member 110 and the pressing member 120 provided to be movable toward the secondary battery 10 disposed on the arrangement member 110 and for pressing the secondary battery 10 disposed on the arrangement member 110 . includes
[51]
Here, the pressing member 120 presses the accommodating part 12a and the sealing part 12b of the pouch 12 together, and accordingly, the sealing part 12b is vented by the gas pressure generated in the accommodating part 12a. ) can be prevented. That is, the pressing member 120 presses the sealing part 12b to increase the sealing force of the sealing part 12b, and accordingly, the sealing part 12b is vented by the gas pressure generated in the receiving part 12a. can be prevented from becoming
[52]
For example, the pressing member 120 includes a receiving part 12a of the pouch 12 in which the electrode assembly 11 is accommodated among the pouches 12 of the secondary battery 10 disposed on the disposing member 110 . A holding part pressurizing jig 121 for pressing and a sealing part 12b formed along the edge surface of the receiving part 12a of the pouch 12 of the secondary battery 10 disposed on the arrangement member 110 ) It includes a sealing part pressing jig 122 for pressing the.
[53]
Accordingly, the pressing member 120 can press the receiving part 12a and the sealing part 12b of the pouch 12 together through the receiving part pressing jig 121 and the sealing part pressing jig 122, and the As a result, by increasing the sealing force of the sealing part 12b, it is possible to prevent the sealing part 12b from being vented by the gas pressure generated in the receiving part 12a.
[54]
Meanwhile, the sealing part pressing jig 122 is coupled to the surface of the receiving part pressing jig 121 corresponding to the sealing part 12b. Accordingly, the sealing part pressing jig 122 may press the sealing part 12b through the pressing force transmitted from the receiving part pressing jig 121 .
[55]
Meanwhile, the sealing part pressing jig 122 is formed while assembling a plurality of pressing blocks having an area corresponding to the sealing part 12b. That is, the plurality of pressing blocks are assembled into the sealing portion pressing jig 122 while being coupled in the vertical direction as seen in FIG. 3 . Accordingly, only the damaged or deformed pressure block can be replaced and reused,
[56]
In particular, since the height of the sealing unit pressing jig 122 can be adjusted to match the height of the sealing unit 12b, compatibility can be improved. That is, the plurality of pressing blocks may be adjusted to the same height as the sealing portion 12b, may be adjusted to a height smaller than the sealing portion 12b, or may be adjusted to a greater height than the sealing portion 12b.
[57]
On the other hand, the plurality of pressure blocks have the form of a Lego block having grooves and protrusions that are coupled to each other, thereby increasing the convenience of assembling and disassembling. That is, a coupling groove is formed on the coupling surface of one pressing block to be coupled to each other, and a coupling protrusion coupled to the coupling groove is formed on the coupling surface of the other pressing block. Here, the assembled plurality of pressure blocks may be adhered by an adhesive 123 so as not to be easily separated.
[58]
On the other hand, the plurality of pressing blocks include a first pressing block 122a coupled to the receiving part pressing jig 121, a second pressing block 122b pressing the sealing part 12b, and the first pressing block. and at least one third pressing block 122c disposed between the 122a and the second pressing block 122b. That is, as for the plurality of pressing blocks, referring to FIG. 3 , a first pressing block 122a, one or more third pressing blocks 122c and a second pressing block 122b are sequentially coupled along the vertical direction.
[59]
Here, the first pressing block 122a and the second pressing block 122b have a greater rigidity than the third pressing block 122c, and thus the first pressing block 122a is mounted on the receiving part pressing jig 121. ), it is possible to effectively press the sealing portion 12b through the second pressing block 122b, and the first pressing block 122a or the second through one or more third pressing blocks 122c. By effectively absorbing the pressing force transmitted from the pressing block 122b, it is possible to maintain a uniform pressing force.
[60]
In particular, the third pressing block 122c is formed of synthetic resin, which is a material having elastic restoring force, and thus can effectively absorb the pressing force transmitted from the first pressing block 122a or the second pressing block 122b.
[61]
Meanwhile, the sealing part pressing jig 122 is detachably coupled to the receiving part pressing jig 121 . That is, when the bolt 121b passing through the long hole 121a formed in the receiving part pressing jig 121 is coupled to the sealing part pressing jig 122, the sealing part pressing jig 122 and the receiving part pressing jig are combined. 121 can be coupled, and when the bolt 121b is loosened, the sealing part pressing jig 122 and the receiving part pressing jig 121 can be separated.
[62]
On the other hand, the sealing portion pressing jig 122 is coupled to the position of the receiving portion pressing jig 121 toward the center or in the opposite direction to be adjustable. That is, the long hole 121a formed in the receiving part pressing jig 121 is long in a direction toward the center of the receiving part pressing jig 121, and when the bolt 121b is moved in the long hole 121a, , in conjunction with the bolt 121b, the sealing part pressing jig 122 may be moved in a direction toward the center of the receiving part pressing jig 121 or in the opposite direction, as a result, the sealing part pressing jig 122 position can be adjusted.
[63]
The sealing part pressing jig 122 having such a structure can effectively press the sealing part of the pouch, increase the convenience of use, and can be used interchangeably with secondary batteries of various sizes.
[64]
Therefore, the secondary battery pressurizing device 100 according to the first embodiment of the present invention includes the arrangement member 110 and the pressurizing member 120, so that the receiving part 12a of the pouch 12 included in the secondary battery 10 is included. and the sealing part 12b can be pressed together, thereby increasing the sealing force of the sealing part 12b, thereby preventing the sealing part 12b from being vented due to the gas pressure generated in the accommodating part 12a.
[65]
Hereinafter, a pressurization method using the secondary battery pressurizing device according to the first embodiment of the present invention will be described.
[66]
[Secondary battery pressurization method according to the first embodiment of the present invention]
[67]
As shown in FIG. 6 , the secondary battery pressurizing method according to the first embodiment of the present invention comprises disposing a secondary battery 10 including an electrode assembly 11 and a pouch 12 on an arrangement member 110 . Arrangement step (S10), assembling step (S15) of assembling the sealing portion pressing jig 122 of the pressing member 120, the sealing portion pressing jig 122 and the receiving portion pressing jig 121 of the pressing member 120 It includes a coupling step (S17) of combining, and a pressing step (S20) of pressing the secondary battery 10 disposed on the disposing member 110 with the pressing member 120 .
[68]
deployment stage
[69]
In the disposing step (S10), the secondary battery 10 is disposed on the upper surface of the disposing member 110 .
[70]
Meanwhile, the secondary battery 10 includes an electrode assembly 11 and a pouch 12 accommodating the electrode assembly 11 . Here, the pouch 12 includes a case having an accommodating space for accommodating the electrode assembly 11 and a cover coupled to the case. The pouch 12 having such a structure combines the cover with the electrode assembly accommodated in the accommodating space of the case. Then, the pouch 12 in which the accommodating part 12a for accommodating the electrode assembly and the sealing part 12b for sealing the accommodating part 12a is formed can be manufactured.
[71]
The secondary battery 10 is disposed on the upper surface of the arranging member 110 , and the secondary battery 10 is disposed such that the cover is supported by the arranging member 110 .
[72]
assembly stage
[73]
In the assembling step (S15), a plurality of pressing blocks having an area corresponding to the sealing portion 12b are prepared, and then the plurality of pressing blocks are sequentially assembled to complete the sealing portion pressing jig 122 . For example, the plurality of pressing blocks include a first pressing block (122a), a second pressing block (122b), and one or more third pressing blocks (122c). The first pressing block 122a prepared in this way is disposed at the top to be coupled to the receiving unit pressing jig 121, and the second pressing block 122b is for pressing the sealing unit 12b and is disposed at the bottom. and at least one third pressing block 122c is disposed between the first pressing block 122a and the second pressing block 122b.
[74]
Here, the first and second pressing blocks 122a and 122b are made of a material having greater rigidity than the third pressing block 122c, and accordingly, the sealing unit pressing jig 122 is mounted on the receiving unit pressing jig 121 . ) can be stably coupled to, and the sealing portion 12b can be stably pressed. In addition, the third pressing block 122c is made of a material having an elastic restoring force, thereby elastically pressing the sealing portion 12b to prevent damage to the sealing portion 12b.
[75]
bonding step
[76]
In the coupling step (S17), the sealing part pressing jig 122 is coupled to the receiving part pressing jig 121 . That is, in the coupling step (S17), the sealing portion pressing jig 122 is applied to the surface of the receiving portion pressing jig 121 corresponding to the sealing portion 12b of the pouch 12 disposed on the placement member 110 . place it Next, the bolt 121b is passed through the long hole 121a formed on the surface of the receiving unit pressing jig 121 , and then coupled to the sealing unit pressing jig 122 . Then, the pressing member 120 is completed while the sealing part pressing jig 122 and the receiving part pressing jig 121 are combined.
[77]
At this time, if the bolt 121b is moved within the long hole 121a, the position of the sealing part pressing jig 122 can be adjusted.
[78]
pressurization step
[79]
In the pressing step ( S20 ), the pressing member 120 is lowered toward the secondary battery 10 disposed on the disposing member 110 to pressurize the secondary battery 10 disposed on the disposing member 110 . That is, in the pressing step (S20), the receiving part 12a of the pouch 12 in which the electrode assembly 11 is accommodated among the pouches 12 of the secondary battery 10 disposed on the arrangement member 110 is the A first pressing process of pressing the receiving part pressing jig 121 of the pressing member 120, and the edge of the receiving part 12a of the pouch 12 of the secondary battery 10 disposed on the placing member 110 and a second pressing step of pressing the sealing portion 12b formed along the surface with the sealing portion pressing jig 122 of the pressing member 120 .
[80]
On the other hand, the sealing part pressurizing jig 122 is coupled to the receiving part pressurizing jig 121 corresponding to the sealing part 12b as a pressing force transmitted from the receiving part pressing jig 121 to the sealing part 12b. is pressed, thereby greatly improving the sealing force of the sealing portion 12b, and as a result, it is possible to prevent the sealing portion 12h from being vented by the gas pressure generated in the accommodating portion 12a.
[81]
On the other hand, in the pressing step (S20), as shown in FIG. 7, before pressing the sealing part 12b, the receiving part pressing jig 121 for pressing the receiving part 12a of the pouch 12. By coupling the elastic member 130 having an elastic force to the pressing surface of have.
[82]
Meanwhile, in the pressing step (S20), the elastic member 130 may be attached to the receiving part or the sealing part of the pouch, and accordingly, the receiving part and the sealing part of the pouch may be pressed more elastically. The secondary battery pressurizing method according to the first embodiment of the present invention can greatly increase the sealing force of the sealing part by pressing the receiving part and the sealing part of the pouch together when the secondary battery is pressurized, and as a result, it is possible to prevent the sealing part from being vented. .
[83]
Hereinafter, in describing another embodiment of the present invention, the same reference numerals are used for the reference numerals having the same configuration as those of the above-described embodiment, and overlapping descriptions will be omitted.
[84]
[Secondary battery pressurization device according to the second embodiment of the present invention]
[85]
As shown in FIG. 8 , the secondary battery pressurizing device 100 according to the second embodiment of the present invention includes a sealing unit pressing jig 122 for pressing the sealing unit 12b, the sealing unit pressing jig 122 includes a first pressing block 122a, a second pressing block 122b, and one or more third pressing blocks 122c.
[86]
Here, a plurality of pressing projections 122b-1 are formed on the pressing surface of the second pressing block for pressing the sealing portion 12b to press the sealing portion 12b in multiple stages, and a plurality of pressing projections 122b-1 are formed. Therefore, it is possible to seal the sealing portion 12b in multiple stages, and as a result, it is possible to greatly prevent the sealing portion 12b from being vented.
[87]
[Secondary battery pressurization device according to the third embodiment of the present invention]
[88]
The secondary battery pressing device 100 according to the third embodiment of the present invention includes a pressing member 120' having a sealing part pressing jig 122' as shown in FIGS. 9 and 10, The sealing part pressing jig 122' includes a first pressing block 122a, a second pressing block 122b', and one or more third pressing blocks 122c.
[89]
Here, the second pressing block 122b ′ for pressing the sealing portion 12b has a larger width or a smaller width than the first and second pressing blocks 122a and 122c. Accordingly, only the second pressing block 122b' can be replaced and used according to the width of the sealing part 12b, and as a result, it is not necessary to replace the entire sealing part pressing jig 122', so the convenience of use can be improved. .
[90]
[Secondary battery pressurization device according to the fourth embodiment of the present invention]
[91]
As shown in FIG. 11 , the secondary battery pressing device 100 according to the fourth embodiment of the present invention includes a pressing member 120A having a receiving part pressing jig 121 and a sealing part pressing jig 122A. However, the sealing part pressing jig 122A has a 'C' shape to simultaneously press three sides except for one side of the pouch 12 provided in the secondary battery 10 from which the electrode lead 13 is drawn out, Accordingly, it is possible to stably press the sealing portion of the pouch.
[92]
[Secondary battery pressurization device according to the fifth embodiment of the present invention]
[93]
As shown in FIG. 12 , the secondary battery pressing device 100 according to the fifth embodiment of the present invention includes a pressing member 120B having a receiving part pressing jig 121 and a sealing part pressing jig 122B. However, the sealing part pressing jig 122B has a 'ㅁ' shape to simultaneously press four sides including one side of the pouch 12 provided in the secondary battery 10 from which the electrode lead 13 is drawn out, Accordingly, it is possible to stably press the sealing portion of the pouch.
[94]
The scope of the present invention is indicated by the claims to be described later rather than the above detailed description, and various embodiments derived from the meaning and scope of the claims and their equivalent concepts are possible.
[95]
[Explanation of code]
[96]
100: secondary battery pressurization device
[97]
110: arrangement member
[98]
120: pressing member
[99]
121: receiving part pressurizing jig
[100]
122: sealing part pressure jig
Claims
[Claim 1]
a placement member on which a secondary battery including an electrode assembly and a pouch is disposed; and a pressing member for pressing the secondary battery disposed on the disposing member, wherein the pressing member pressurizes the receiving part for pressing the receiving part of the pouch in which the electrode assembly is accommodated among the pouches of the secondary battery disposed on the disposing member a jig, and a sealing part pressing jig for pressing a sealing part formed along an edge surface of the accommodating part among the pouches of the secondary battery disposed on the disposing member, wherein the sealing part pressing jig is the accommodating part corresponding to the sealing part A secondary battery pressing device coupled to the surface of the pressing jig and pressing the sealing part through the pressing force transmitted from the receiving part pressing jig.
[Claim 2]
The secondary battery pressurizing device according to claim 1, wherein the sealing part pressurizing jig is formed while a plurality of pressurizing blocks are assembled.
[Claim 3]
The method according to claim 2, wherein the plurality of pressing blocks are a first pressing block coupled to the accommodating part pressing jig, a second pressing block pressing the sealing part, and disposed between the first pressing block and the second pressing block A secondary battery pressurizing device comprising one or more third pressurizing blocks.
[Claim 4]
The pressurizing device for a secondary battery according to claim 3, wherein the first and second press blocks have greater rigidity than the third press block.
[Claim 5]
The secondary battery pressing device according to claim 4, wherein the third pressing block is made of a material having elastic restoring force.
[Claim 6]
The secondary battery pressing device according to claim 3, wherein a plurality of pressing protrusions are formed on the pressing surface of the second pressing block for pressing the sealing part to press the sealing part in multiple stages.
[Claim 7]
The secondary battery pressurizing device according to claim 1, wherein the sealing unit pressurizing jig is detachably coupled to the receiving unit pressurizing jig.
[Claim 8]
The secondary battery pressurizing device according to claim 1, wherein the sealing unit pressurizing jig is coupled to be adjustable in position in a direction toward the center of the receiving unit pressurizing jig or in an opposite direction.
[Claim 9]
The secondary battery pressing device according to claim 3, wherein the pressing surface of the receiving unit pressing jig for pressing the receiving unit of the pouch includes an elastic member for elastically pressing the pouch receiving unit.
[Claim 10]
A disposing step (S10) of disposing the secondary battery including the electrode assembly and the pouch on the disposing member; and a pressing step (S20) of pressing the secondary battery disposed on the disposing member with a pressing member, wherein the pressing step (S20) includes the pouch in which the electrode assembly is accommodated among the pouches of the secondary batteries disposed on the disposing member. A first pressing step of pressing the receiving portion of the pressing member with the pressing jig of the receiving portion of the pressing member, and the sealing portion formed along the edge of the receiving portion among the pouches of the secondary battery disposed on the placement member as the sealing portion pressing jig of the pressing member and a second pressing step of pressing, wherein the sealing unit pressing jig is coupled to the receiving unit pressing jig corresponding to the sealing unit and pressurizing the sealing unit with the pressing force transmitted from the receiving unit pressing jig.
[Claim 11]
The method according to claim 10, Between the disposing step (S10) and the pressing step (S20) further comprising an assembling step (S15) of assembling the sealing part pressing jig, wherein the assembling step (S15), the sealing part and Prepare a plurality of pressing blocks having corresponding areas, wherein the plurality of pressing blocks include a first pressing block, a second pressing block, and one or more third pressing blocks.
[Claim 12]
The method according to claim 11, wherein in the assembling step (S15), the first pressing block is coupled to the receiving part pressing jig, and the second pressing block for pressing the sealing part is disposed on the outside of the first pressing block. , A secondary battery pressurizing method for assembling a sealing part pressurizing jig by arranging one or more third pressurizing blocks between the first and second pressurizing blocks.
[Claim 13]
The method according to claim 12, wherein the first and second pressing blocks are made of a material having greater rigidity than the third pressing block, and the third pressing block is made of a material having elastic restoring force.
[Claim 14]
The method according to claim 13, Between the assembling step (S15) and the pressing step (S20), further comprising a coupling step (S17) of coupling the sealing part pressing jig to the receiving part pressing jig, the coupling step (S17) The sealing part pressurizing jig is disposed on the surface of the receiving part pressing jig corresponding to the sealing part of the pouch disposed on the arrangement member, and then the bolt is passed through the long hole formed on the surface of the sealing part pressing jig to seal the sealing part pressing jig. A secondary battery pressurizing method in which the sealing unit pressurizing jig is coupled to the receiving unit pressurizing jig, but the bolt moves within the long hole to adjust the position of the sealing unit pressurizing jig.
[Claim 15]
The secondary battery pressurization according to claim 10, wherein the pressing step (S20) further comprises a step of coupling an elastic member for elastically pressing the pouch receiving part to the pressing surface of the receiving part pressing jig for pressing the receiving part of the pouch. Way.