KR20240045850A - Lamination system for mono cell - Google Patents

Abstract

The disclosed invention provides a lamination system for manufacturing a monocell, comprising: an anode supply roller for supplying an anode; A cathode supply roller that supplies a cathode; Upper and lower separator supply rollers that respectively supply the upper and lower separators to which the binder is applied; An input device for inputting information about the binders of the upper and lower separators; A transport roller that transports the electrode assembly formed by sequentially stacking the anode, upper separator, cathode, and lower separator supplied through each supply roller; A lamination device that laminates the electrode assembly transferred through a transfer roller with a heater and a pressure roller; and a control unit that controls laminating conditions through binder information of the upper and lower separators input to the input device. Includes.

Description

Lamination system for monocell {LAMINATION SYSTEM FOR MONO CELL}

The present invention relates to a lamination system for monocells.

More specifically, it relates to a lamination system for monocells that can control the laminating conditions of monocells through binder information of each separator sequentially laminated on the cathode and anode of the monocell.

Recently, important trends in the development of the electronics industry can be summarized as the trend of wireless and mobile devices and the transition from analog to digital. Representative examples include the rapid spread of cordless phones (aka cell phones) and laptop computers, and the transition from analog cameras to digital cameras.

Along with this trend, research and development on secondary batteries are actively progressing, and the types of applications that use secondary batteries are becoming very diverse due to the advantages of secondary batteries. In the future, secondary batteries will be used in many more fields and products than now. is expected to be applied

Here, secondary batteries are used not only in portable devices such as cell phones, laptops, camcorders, etc., but also in electric vehicles, hybrid electric vehicles, etc., which are proposed as a solution to air pollution from existing gasoline and diesel vehicles that use fossil fuels. It is also attracting attention as an energy source.

Generally, secondary batteries are classified according to the shape of the battery case into cylindrical cells and square cells in which the electrode assembly is embedded in a cylindrical or square metal can, and pouch-type battery cells in which the electrode assembly is embedded in a pouch-type case of an aluminum laminate sheet. .

In addition, the electrode assembly built into the battery case is a power generating element capable of charging and discharging, consisting of a positive electrode, a negative electrode, and a separator between the positive electrode and the negative electrode. A separator is formed between the long sheet-shaped positive electrode and the negative electrode coated with each active material. It is classified into a jelly roll type in which a plurality of anodes and cathodes of a predetermined size are sequentially stacked with a separator interposed therebetween.

These secondary batteries are classified into lithium-ion batteries, lithium-ion polymer batteries, and lithium polymer batteries depending on the composition of the electrode and electrolyte. Typically, the electrodes of these lithium secondary batteries are aluminum or copper sheets, mesh, It is formed by applying a positive or negative electrode active material to a current collector such as a film or foil and then drying it.

Meanwhile, the lamination process for stacking makes it possible to manufacture battery cells with the required shape and capacity in a short time.

In other words, a mono cell is manufactured by bonding an electrode and a separator using strong heat and pressure through a lamination process, and after stacking a plurality of manufactured mono cells, a half cell is stacked on top. Afterwards, battery cells can be manufactured by taping.

Here, in the process of manufacturing a monocell, the adhesion of the separator and the electrode is performed using a binder. The binder is applied to the separator and exists as a solid, and then is activated by strong heat and pressure to attach the separator and the electrode.

Here, there is a large variation in the amount of binder applied to the separator supplied in the separator process.

If the amount of binder is large during the lamination process after setting the lamination conditions such as heat and pressure to suit the case where the amount of binder is small, the electrolyte impregnation is not sufficiently achieved due to excessive adhesion, and product performance is deteriorated due to the inability to spray evenly. There was this.

In addition, when the amount of binder is small during the lamination process after setting lamination conditions such as heat and pressure to suit the case where the amount of binder is large, there is a problem that the adhesive strength between the separator and the electrode may decrease, which may cause peeling between the separator and the electrode.

In this way, the lamination conditions for bonding the separator and the electrode vary depending on the amount of binder, and if the lamination conditions such as heat and pressure are not met depending on the amount of binder, there is a problem that product quality may deteriorate.

In order to solve the problems described above, when manufacturing a monocell, the presence or absence of defects in the monocell was detected using a vision device. At this time, it is easy to detect the presence or absence of defects, but there is a problem that real-time control of laminating conditions for monocells is difficult.

Therefore, there is a need for a system that can quickly change lamination conditions in real time depending on the amount of binder in the separator.

Republic of Korea Patent No. 10-2167118

The present invention is intended to solve the problems described above, and provides a lamination system for monocells that can control the laminating conditions of monocells through binder information of each separator sequentially laminated on the cathode and anode of the monocell. The purpose.

In addition, the present invention can improve product quality and consistently maintain the adhesion of the monocell by laminating by optimizing the heating temperature and pressure to correspond to the binder information of each separator in an electrode assembly in which an anode, a cathode, and each separator are sequentially stacked. The purpose is to provide a lamination system for monocells.

In order to realize the above-described problem, the present invention provides a lamination system for manufacturing a monocell, comprising: an anode supply roller for supplying an anode; A cathode supply roller that supplies a cathode; Upper and lower separator supply rollers that respectively supply the upper and lower separators to which the binder is applied; An input device for inputting information about the binders of the upper and lower separators; A transport roller that transports the electrode assembly formed by sequentially stacking the anode, upper separator, cathode, and lower separator supplied through each supply roller; A lamination device that laminates the electrode assembly transferred through a transfer roller with a heater and a pressure roller; and a control unit that controls laminating conditions through binder information of the upper and lower separators input to the input device. It is characterized by including.

As one embodiment, the control unit may include a database storing physical property information about the binder and data about laminating conditions corresponding thereto.

As another embodiment, the database may further store data on fabric information of the upper and lower separators and laminating conditions corresponding thereto.

As one embodiment, the control unit may search a database for physical property information of the binder corresponding to the binder information input to the input device and control the laminating conditions of the lamination device through the search.

As a specific embodiment, the binder information may be information about the adhesive strength of the binder, including the type of binder, the content of the binder, and the type of additive added to the binder.

As another specific embodiment, the binder information may further include information about the fabric of the upper and lower separators and the standard adhesive force of the binder corresponding to the separator fabric information.

In one embodiment, the control unit controls the temperature and pressure acting on the separator by controlling one or more of the output of the heater of the lamination device and the pressure of the pressure roller through the adhesive force information of the binder included in the physical property information of the binder. It can be corrected.

In another embodiment, when the adhesive strength of the binder is less than the range of the preset reference adhesive strength of the binder, the control unit increases the temperature and pressure acting on the separator by controlling the output of the preset heater and the pressure of the pressure roller, and increases the temperature and pressure acting on the separator. If the adhesive strength exceeds the range of the preset standard adhesive strength of the binder, the temperature and pressure acting on the separator can be reduced by controlling the output of the preset heater and the pressure of the pressure roller.

In another embodiment, the input device is a reader, and information about the binder is provided as a code on the surface of the upper and lower separators, and the binder information of the upper and lower separators is obtained by reading the code of the upper and lower separators through the reader. can be obtained.

As a specific embodiment, the code may be any of a bar code, QR code, data matrix code, or code in the form of a data frame.

According to the present invention, the laminating conditions of the monocell can be controlled through the binder information of each separator sequentially laminated on the cathode and anode of the monocell, and the laminating conditions of each separator can be controlled in an electrode assembly in which the anode, cathode, and each separator are sequentially stacked. By optimizing the heating temperature and pressure to correspond to the information of the binder and laminating, product quality can be improved and the adhesion of the monocell can be consistently maintained.

Figure 1 is a perspective view schematically showing a lamination system for monocells according to the present invention.
Figure 2 is a configuration diagram schematically showing the control unit of the lamination system for monocells according to the present invention.
Figure 3 is a flowchart schematically showing a method of controlling the laminating conditions of a monocell through the binder information of each separator through the lamination system for monocells according to the present invention.
Figure 4 is a side view schematically showing a monocell manufactured through the lamination system for monocells according to the present invention.
Figure 5 is a diagram schematically showing another embodiment of an input device in the lamination system for monocells according to the present invention.

Hereinafter, the present invention will be described in detail. Prior to this, the terms or words used in this specification and claims should not be construed as limited to their usual or dictionary meanings, and the inventor must appropriately use the concept of the term to explain his or her invention in the best way. It must be interpreted as meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined clearly.

As used throughout the specification of the present invention, terms such as "comprise" or "have" are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification. It should be understood that it does not exclude in advance the presence or addition of other features, numbers, steps, operations, components, parts, or combinations thereof.

Additionally, when a part of a layer, membrane, region, plate, etc. is said to be “on” another part, this includes not only being “directly above” the other part, but also cases where there is another part in between. Conversely, when a part of a layer, membrane, region, plate, etc. is said to be "under" another part, this includes not only being "right underneath" that other part, but also cases where there is another part in between. Additionally, in the specification of the present invention, being placed “on” may include being placed not only at the top but also at the bottom.

Hereinafter, preferred embodiments of the present invention will be described with reference to the attached drawings. Figure 1 is a perspective view schematically showing a lamination system for monocells according to the present invention. Figure 2 is a configuration diagram schematically showing the control unit of the lamination system for monocells according to the present invention. Figure 3 is a flowchart schematically showing a method of controlling the laminating conditions of a monocell through the binder information of each separator through the lamination system for monocells according to the present invention. Figure 4 is a side view schematically showing a monocell manufactured through the lamination system for monocells according to the present invention. Figure 5 is a diagram schematically showing another embodiment of an input device in the lamination system for monocells according to the present invention.

As shown in the drawing, the lamination system 1 for a monocell according to the present invention manufactures a monocell by bonding the electrodes 11, 21 and the separators 31, 33 with a binder through heat and pressure. It is for this purpose.

Specifically, the anode supply roller 10 for supplying the anode 11, the cathode supply roller 20 for supplying the cathode 21, and the upper and lower separators respectively supplying the binder-coated separators 31 and 33. An input device 40 for inputting information about each binder of the supply rollers 30a, 30b and the upper and lower separators 31, 33, the anode 11 and the upper separator 31 supplied through each supply roller, and A transfer roller 50 transports the electrode assembly formed by sequentially stacking the cathode 21 and the lower separator 33, and a heater 61 and pressure rollers 63a and 63b transport the electrode assembly via the transport roller 50. It includes a lamination device 60 that laminates, and a control unit 70 that controls laminating conditions through each binder information of the upper and lower separators 31 and 33 input to the input device 40.

The anode supply roller 10 and the cathode supply roller 20 are for supplying the anode 11 and the cathode 21 wound in a roll shape, and are provided on one side of the transfer roller 50.

Here, the anode 11 and cathode 21 supplied through the anode supply roller 10 and the cathode supply roller 20 are each cut to a certain length through a cutting device (not shown) and then supplied separately. .

The upper and lower separator supply rollers 30a and 30b are for supplying the upper separator 31 and the lower separator 33 wound in the form of a roll. The upper separator supply roller 30a is used to supply the anode 11 and the cathode ( 21), the upper separator 31 is supplied between them, and the lower separator supply roller 30b supplies the lower separator 33 to the lower side of the cathode 21.

At this time, the upper and lower separators 31 and 33 are cut using a separator cutting device (not shown) after the anode 11 and the cathode 21 are stacked.

Here, a binder for adhering each separator 31 and 33 to the electrode is applied to the surfaces of the upper and lower separators 31 and 33 supplied through the upper and lower separator supply rollers 30a and 30b, respectively.

The input device 40 inputs information about the binder applied to the upper separator 31 and information about the binder applied to the lower separator 33.

Here, the input device 40 may be installed on the upper separator supply roller 30a or the lower separator supply roller 30b, or may be installed on the upper separator supply roller 30a and the lower separator supply roller 30b, respectively.

Meanwhile, the input device 40 can be configured to allow the operator to directly input information on each binder applied to the upper and lower separators 31 and 33. To this end, the input device 40 may be a display panel that is touchable and serves as a manipulation unit.

With the structure described above, the operator directly inputs information about each binder into the input device 40, and the control unit 70 controls the lamination conditions of the lamination device 60 according to the input information about the binder. can do.

In this embodiment, the input device 40 consists of an input device 40 through which the operator directly inputs information about the binder, but the input device 40 may be a reader 41 or a scanner. Information about the binder may be provided in the form of a code 43 on the surfaces of the upper and lower separators 31 and 33.

Due to the structure described above, when the upper and lower separators 31 and 33 are unwound from the upper and lower separator supply rollers 30a and 30b, the cord 43 provided on the surface of the upper and lower separators 31 and 33 is used. The reader 41 automatically reads, and binder information of the upper and lower separators 31 and 33 is acquired in real time through the binder information provided in the form of a code 43 to the upper and lower separators 31 and 33. can do.

Here, the code 43 provided on the surface of the upper and lower separators 31 and 33 may be one of a bar code, QR code, data matrix code, or data frame type code, and the reader 41 The code 43 provided on the surfaces of the upper and lower separators 31 and 33 can be read.

The transfer roller 50 sequentially stacks the anode 11, the upper separator 31, the cathode 21, and the lower separator 33 supplied through each supply roller, and sends the sequentially stacked electrode assembly to a post-process. transfer.

Here, the transport rollers 50 may be arranged in plurality with respect to the transport direction of the electrode assembly, and transport the sequentially stacked electrode assemblies supplied from each supply roller to the laminating process and the separator cutting process.

The lamination device 60 applies heat and pressure to the electrode assembly transported through the transfer roller 50 to laminate the electrode assembly to a certain thickness.

For this purpose, the lamination device 60 includes a heater 61 that applies heat at a certain temperature to the electrode assembly and pressure rollers 63a and 63b that press the electrode assembly heated by the heater 61. .

The heater 61 is capable of generating heat, is provided at regular intervals above and below the electrode assembly, and can be installed to be movable toward the electrode assembly.

The pressing rollers 63a and 63b are provided on one side of the heater 61 to press the electrode assembly heated through the heater 61. For this purpose, the pressure rollers 63a and 63b are provided as a pair of upper and lower sides, and the transported electrode assembly is pressed while passing between the pair of pressure rollers 63a and 63b to have a certain thickness.

As described above, heat and pressure are applied to the electrode assembly through the lamination device 60 including the heater 61 and the pressure rollers 63a and 63b, thereby forming a solid material applied to the upper and lower separators 31 and 33. As the binder is activated, each separator (31, 33) and the electrode are bonded and bonded.

The control unit 70 controls laminating conditions through binder information of the upper and lower separators 31 and 33 input through the input device 40.

Specifically, the control unit 70 can control laminating conditions through binder information of the upper separator 31 and binder information of the lower separator 33 input to the input device 40 through the operator.

In addition, the control unit 70 automatically reads the binder information of the upper and lower separators 31 and 33, which are provided in the form of codes 43 on each surface of the upper and lower separators 31 and 33, to the reader 41. , laminating conditions can be controlled through read binder information.

To this end, the control unit 70 can be connected to the input device 40 and the reader 41 to enable PCL (Printer Command Language) communication, and can communicate through serial communication and Ethernet communication. It is possible to connect, and it is possible to communicate with Wi-Fi, Bluetooth, Zigbee, Beacon, RFID, etc., and various other changes are possible.

Meanwhile, the control unit 70 may further include a database (DB) 71 in which data on physical properties of the binder and corresponding laminating conditions are stored. Here, “corresponding” may mean the same as or similar to the physical property information for the binder, but is not limited thereto.

With the structure described above, the lamination device 60 can be controlled under laminating conditions corresponding to the binder information input to the input device 40 through the binder physical property information data stored in the database 71.

Here, the database 71 may further store data on the fabric information of the upper and lower separators 31 and 33 and the corresponding laminating conditions.

Through this, laminating conditions can be controlled through the fabric information of the upper and lower separators 31 and 33 stored in the database 71, the adhesive strength information of the binder compared to the fabric of the upper and lower separators 31 and 33, etc. .

Meanwhile, the binder information may be information about the adhesive strength of the binder, including the type of binder, the content of the binder, and the type of additives added to the binder. That is, the binder information includes the type of binder applied to the upper and lower separators 31 and 33, the content of the binder applied to the upper and lower separators 31 and 33, and the type of additive added to the binder. It may be adhesion information.

At this time, the binder information of the upper and lower separators 31 and 33 and/or data previously stored in the database 71 may be stored in numerical form.

Meanwhile, in one embodiment of the present invention, the binder information may be information about the adhesive strength of the binder including the type of binder, the content of the binder, and the type of additives added to the binder. However, the binder information may be information on the upper and lower separator 31 , 33), and information on the standard adhesive strength of the binder corresponding to the fabric information of the separators 31 and 33 may be further included.

Even at this time, information about the fabric information of the upper and lower separators 31 and 33 and the standard adhesive force of the binder corresponding to the fabric information of the separators 31 and 33 can be stored in numerical form.

Meanwhile, the control unit 70 may further include a search unit 73.

The search unit 73 can search for data corresponding to binder information input to the input device 40 through the database 71. That is, the search unit 73 searches the physical property information of the binder corresponding to the binder information input through the input device 40 through data previously stored in the database 71, and determines the laminating conditions of the lamination device 60 through this. can be controlled.

Specifically, physical property information of the binder corresponding to the binder information input through the input device 40 can be searched in the database 71, and temperature and pressure suitable for the retrieved binder data can be set.

After selecting data corresponding to the binder information input through the search unit 73, the lamination device 60 can be controlled under laminating conditions corresponding to the selected data.

At this time, one or more of the output of the heater 61 of the lamination device 60 and the pressure of the pressure rollers 63a and 63b are controlled through the adhesive force information of the binder included in the physical property information of the binder to separate the separators 31 and 33. It can be corrected by adjusting the temperature and pressure acting on it.

Through this, the physical property information of the binder corresponding to the binder information input to the input device 40 is searched in the database 71, and the heater 61 is output and pressurized at a preset temperature and pressure corresponding to the retrieved binder data. The pressing force of the rollers 63a and 63b can be set.

To this end, the control unit 70 is a setting unit 75 for setting the output of the heater 61 and the pressure of the pressing rollers 63a and 63b to laminating conditions corresponding to the data selected after searching through the search unit 73. It may further include.

Here, it is possible to set the output of the heater 61 and the pressing force of the pressing rollers 63a and 63b to a preset temperature range and pressure range corresponding to the retrieved binder data, and various other changes can be made.

Therefore, the electrode assembly can be laminated by changing the currently set laminating conditions to new laminating conditions in real time.

Meanwhile, when the range of the standard adhesive force is preset in the control unit 70 and the output of the heater 61 and the pressure of the pressure rollers 63a and 63b corresponding to the standard adhesive force are set, the control unit 70 controls the adhesive force of the binder. If it is less than the range of the standard adhesive force of the preset binder, the output of the preset heater 61 and the pressure of the pressure rollers 63a and 63b are controlled to increase the temperature and pressure acting on the separators 31 and 33, and the binder If the adhesive force exceeds the range of the preset standard adhesive force, the temperature and pressure acting on the separators 31 and 33 can be reduced by controlling the output of the preset heater 61 and the pressure of the pressure rollers 63a and 63b. there is.

According to the structure described above, the binder information input to the input device 40 is compared with the binder data preset in the database 71, and when the adhesive strength of the compared binder is less than the range of the preset reference adhesive strength of the binder. , the output of the preset heater 61 and the pressure of the pressure rollers 63a and 63b are controlled to be high to increase the temperature and pressure acting on the separators 31 and 33, and the adhesive strength of the compared binder is set to the standard of the preset binder. If the adhesive force exceeds the range, the temperature and pressure acting on the separators 31 and 33 can be reduced by controlling the preset output of the heater 61 and the pressure of the pressure rollers 63a and 63b to low.

To this end, the control unit 70 may further include a unit 77 that compares binder information input through the input device 40 with binder data preset in the database 71.

Hereinafter, the lamination process of a monocell using the lamination system for a monocell according to the present invention will be briefly described.

First, the anode 11, the cathode 21, the upper separator 31, and the lower separator 33 are supplied through the anode supply roller 10, the cathode supply roller 20, and the upper and lower separator supply rollers 30a and 30b. This is supplied.

Here, the anode 11 and the cathode 21 are cut to a certain length through each cutting device and then supplied, the upper separator 31 is supplied between the anode 11 and the cathode 21, and the lower separator 33 ) is supplied to the lower side of the cathode (21).

The electrode assembly formed by sequentially stacking the supplied anode 11, upper separator 31, cathode 21, and lower separator 33 is transferred to the lamination device 60 through the transfer roller 50.

Here, when the operator inputs the binder information of the upper and lower separators 31 and 33 through the input device 40, the type of binder, the content of the binder, and the type of additive added to the binder are included through the database 71. Binder information about the adhesive strength of the binder and/or fabric information of the upper and lower separators 31 and 33, and data corresponding to binder information about the standard adhesive strength of the binder corresponding to the fabric information of the upper and lower separators 31 and 33. Search for.

Then, the output of the heater 61 of the lamination device 60 and the pressing force of the pressing rollers 63a and 63b are adjusted and corrected to correspond to lamination conditions such as temperature and pressure corresponding to the retrieved binder data.

For example, when the adhesion strength according to each physical property information of the binder is quantified and stored in the database 71, and laminating conditions such as temperature and pressure are set and stored for the quantified adhesion strength, the upper and lower separators 31, When the information on the binder applied to 33) is input to the input device 40, the control unit 70 searches the database 71 for the physical property information of the preset binder corresponding to the information on the input binder.

In addition, the heating temperature of the heater 61 and the pressure of the pressure rollers 63a and 63b are set according to the adhesive strength of the binder in the binder data containing the retrieved physical property information, and the heater is set according to the binder information entered under the current laminating conditions. It can be corrected with new laminating conditions, such as controlling the output of (61) and the pressure of the pressure rollers (63a, 63b).

Specifically, the adhesive strength of the binder is quantified to 60 to 90 through the binder adhesion information including the type of binder, the content of the binder, and the type of additive added to the binder in the database 71. It is stored, and the current output of the heater 61 of the laminating device and the pressure of the pressure rollers 63a and 63b are set to a binder adhesion of 60 and a laminating operation is in progress, and the binder information input to the input device 40 is used to obtain a value of 90. If the binder is adhesive, the heating temperature of the heater 61 and the pressure of the pressure rollers 63a and 63b can be controlled low to correspond to this.

On the contrary, when the output of the heater 61 and the pressure of the pressure rollers 63a and 63b of the laminating device are currently set to a binder adhesive force of 90 and laminating is in progress, the binder information input to the input device 40 is 60. If the binder adhesion is high, the heating temperature of the heater 61 and the pressure of the pressure rollers 63a and 63b can be controlled to be high to correspond to this.

In this way, the laminating conditions, including the output of the heater 61 and the pressure of the pressure rollers 63a and 63b, can be corrected in real time to correspond to the binder information input to the input device 40.

Here, even when the input device 40 is the reader 41 and information about the binder is provided as a code 43 on the surface of the upper and lower separators 31 and 33, the upper and lower separators 31 and 33 After the reader 41 reads the code 43 provided on the surface, the physical property information of the binder corresponding to the information of the read binder is searched in the database 71, and the lamination device ( The output of the heater 61 (60) and the pressure of the pressure rollers (63a, 63b) can be controlled.

Meanwhile, when the range of the standard adhesive force is preset in the control unit 70 and the output of the heater 61 and the pressure of the pressure rollers 63a and 63b corresponding to the standard adhesive force are set, the control unit 70 controls the adhesive force of the binder. The temperature and pressure acting on the separators 31 and 33 can be controlled by controlling the output of the heater 61 and the pressure of the pressure rollers 63a and 63b depending on whether the range is within the standard adhesive force of the binder.

That is, the adhesive strength of the binder is quantified and stored as 60 to 90 in the database 71, and the current laminating conditions are set to correspond to the binder standard adhesive strength of 70 to 80. When performing the lamination process, the If the binder information is a binder adhesive force of 60, which is less than the range of the standard adhesive force, the output of the preset heater 61 and the pressure of the pressure rollers 63a and 63b are controlled to be high to increase the temperature and pressure acting on the separators 31 and 33. increases, and when the binder information input to the input device 40 is a binder adhesive force of 90 that exceeds the standard adhesive force, the output of the preset heater 61 and the pressure of the pressure rollers 63a and 63b are controlled to low to separate the separator. (31, 33) can reduce the temperature and pressure acting on it.

The electrode assembly bonded and laminated through the lamination device 60 is manufactured into a monocell 3 after performing a cutting process through a separator cutting device.

As described above, the lamination conditions can be controlled in real time during the lamination process by inputting information about the binder applied to the upper and lower separators 31 and 33 in real time through the input device 40, and through this, the adhesion of the binder A lamination process optimized for can be performed.

Above, the present invention has been shown and described in relation to specific embodiments, but it is common knowledge in the art that various modifications and changes are possible without departing from the spirit and scope of the invention as indicated in the appended claims. Anyone who has it will be able to easily understand it.

1: Lamination system for monocell
3: Monocell
10: Anode supply roller
11: anode
20: cathode supply roller
21: cathode
30a: Upper separator supply roller
30b: Lower separator supply roller
31: upper separator
33: lower separator
40: input device
41: Reader
43: code
50: transfer roller
60: Lamination device
61: heater
63a, 63b: Pressure roller
70: control unit
71: database
73: Search section
75: Setting section
77: Comparison part

Claims (10)

In the lamination system for manufacturing monocells,
An anode supply roller that supplies an anode;
A cathode supply roller that supplies a cathode;
Upper and lower separator supply rollers that respectively supply the upper and lower separators to which the binder is applied;
An input device for inputting information about the binders of the upper and lower separators;
A transport roller that transports the electrode assembly formed by sequentially stacking the anode, upper separator, cathode, and lower separator supplied through each supply roller;
A lamination device that laminates the electrode assembly transferred through a transfer roller with a heater and a pressure roller; and
A control unit that controls laminating conditions through binder information of the upper and lower separators input to the input device;
A lamination system for monocells comprising a.
According to paragraph 1,
The control unit,
A lamination system for monocells, comprising a database storing data on physical properties of the binder and corresponding laminating conditions.
According to paragraph 2,
The database is,
A lamination system for monocells, characterized in that data on the fabric information of the upper and lower separators and the corresponding laminating conditions are further stored.
According to paragraph 3,
The control unit,
A lamination system for monocells, characterized in that the physical property information of the binder corresponding to the binder information input to the input device is searched in the database and the laminating conditions of the lamination device are controlled through this.
According to paragraph 4,
The binder information is,
A lamination system for a monocell, characterized in that it contains information on the adhesive strength of the binder, including the type of binder, the content of the binder, and the type of additives added to the binder.
According to clause 5,
The binder information is,
Lamination for monocells, characterized in that it further includes information about the fabric information of the upper and lower separators and the standard adhesive strength of the binder corresponding to the separator fabric information.
According to clause 6,
The control unit,
For monocells, characterized in that the temperature and pressure acting on the separator are adjusted and corrected by controlling one or more of the output of the heater of the lamination device and the pressure of the pressure roller through the adhesive force information of the binder included in the physical property information of the binder. Lamination system.
In clause 7,
The control unit,
If the adhesive strength of the binder is less than the range of the preset reference adhesive strength of the binder, the temperature and pressure acting on the separator are increased by controlling the output of the preset heater and the pressure of the pressure roller,
When the adhesive strength of the binder exceeds the range of the preset standard adhesive strength of the binder, the lamination system for monocells is characterized in that it reduces the temperature and pressure acting on the separator by controlling the output of the preset heater and the pressure of the pressure roller.
According to paragraph 1,
The input device is a reader,
Information about the binder is provided as a code on the surface of the upper and lower separators.
A lamination system for monocells, characterized in that binder information of the upper and lower separators is obtained by reading the codes of the upper and lower separators through the reader.
According to clause 9,
The above code is:
A lamination system for monocells, characterized in that it consists of one of a bar code, QR code, data matrix code, or data frame type code.

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