Gold plating device and gold plating method for negative electrode material for secondary battery in horizontal transfer mode

Abstract

The present invention relates to a method for transferring a negative electrode material for a secondary battery in a horizontal direction by using a conductive roller of a rectifier when the negative electrode material passes through a gold plating bath. The present invention relates to a device and a method for plating gold on a negative electrode material for a secondary battery in a horizontal transfer manner, wherein a structure in which a conductive roller in a lower lifting manner maintains the tension of the negative electrode material is improved. In addition, the present invention relates to an apparatus and a method for plating gold on a negative electrode material for a secondary battery in a horizontal transfer manner, which can prevent the occurrence of deformation such as wrinkles on the left and right side edges or product damage by individually controlling the tension at the left and right side edge parts of the negative electrode material, and has an improved structure, and to a method for plating gold on a negative electrode material for a secondary battery.

Description

Technical Field

[0001] The present invention relates to a gold-plating device for negative electrode materials for secondary batteries in a horizontal transfer mode and a gold-plating method thereof, and in particular to a gold-plating device for negative electrode materials for secondary batteries in a horizontal transfer mode and a gold-plating method thereof, which has an improved structure that can use a conductive roller of a rectifier to transfer the negative electrode materials for secondary batteries in a horizontal direction while using conductive rollers of an up and down lifting mode to maintain the tension of the negative electrode materials during the process of the negative electrode materials for secondary batteries passing through a gold plating tank.

[0002] In addition, the present invention relates to a gold-plating device and method for negative electrode materials for secondary batteries with an improved horizontal transfer structure that can prevent deformation such as wrinkles or product damage at the left and right edges by individually controlling the tension at the left and right edges of the negative electrode material. Background Art

[0003] Generally speaking, with the rapid popularization of various portable electronic devices such as cameras, cordless phones, mobile phones and laptops in daily life, the demand for secondary batteries used as power supply sources is also increasing significantly. Among them, lithium secondary batteries have excellent battery characteristics such as large capacity and high energy density, and related research is being actively carried out at home and abroad. Therefore, they are currently the most widely used in the field of secondary batteries.

[0004] Lithium secondary batteries are basically composed of a positive electrode, a negative electrode, and an electrolyte. Therefore, research and development activities on lithium secondary batteries can be roughly divided into research related to positive electrode (cathode) and negative electrode (anode) materials and electrolyte (electrolyte).

[0005] Among them, natural graphite used as negative electrode material of lithium secondary battery has excellent initial capacity, but has poor efficiency and cycle capacity. It is known that this is caused by electrolyte decomposition reaction at the edge of natural graphite with high crystallinity.

[0006] In order to overcome the characteristics described above, a method has been proposed in which natural graphite is surface treated (coated) with low-crystalline carbon and heat treated at above 1,000°C to coat the surface of natural graphite with a carbide having low crystallinity, thereby obtaining a negative electrode active material having improved efficiency and cycle capacity characteristics although its initial capacity is reduced.

[0007] As an example, Japanese Laid-Open Patent Publication No. 2002-084836 discloses the characteristics of graphite in which a part or all of the edge portions of crystals of a core carbon material are coated with a coating-forming carbon material.

[0008] However, in order to use the negative electrode active material obtained by the method as described above as an electrode and apply it to an electrode collector such as a copper coil and then press it, the coated carbide will be broken, and the edge portion of the highly crystalline natural graphite will react with the electrolyte again through the portion, resulting in a problem of reducing the actual carbide coating effect.

[0009] Furthermore, although the Japanese patent contains information on the amount of coating-forming carbon material applied to natural graphite and the heat treatment temperature, as well as X-ray diffraction and Raman analysis of natural graphite coated with the coating-forming carbon material, it does not record any information on the effect of cracking of the coated carbide during the extrusion process when actually used in electrodes.

[0010] As an existing prior art related to negative electrode materials for secondary batteries, as disclosed in Korean Registered Patent Gazette No. 10-08844231 "Negative Electrode Material for Secondary Batteries and Secondary Batteries Using the Negative Electrode Material" (Registration Date: 2009.02.11), as a negative electrode material for secondary batteries manufactured by coating low-crystalline carbon on a core carbon material and firing it, the specific surface area of ​​the negative electrode material after extrusion is less than 1.4 times the specific surface area before extrusion.

[0011] Another prior art related to the gold plating of negative electrode materials for secondary batteries is disclosed in Korean Registered Patent Gazette No. 10-0748791 "Vertical Gold Plating Device and Gold Plating Method" (registration date: 2007.08.06), which includes: a gold plating tank for accommodating the gold plating liquid, equipped with an inlet and an outlet for allowing sheet-shaped gold-plated materials to continuously pass through the gold plating liquid; a positive electrode material is arranged at a position a certain distance away from the gold-plated material that continuously passes through a chamber equipped with the gold plating tank; an unwinding roller, installed on one side of the inlet of the gold plating tank, for continuously supplying the gold-plated material to the gold plating tank; a plurality of clamps, which are installed at intervals at the upper end of the gold-plated material introduced into the chamber equipped with the gold plating tank and are loaded with a negative potential; and a conductive tape disassembly component, which is adhered to the entire upper end of the gold-plated material.

[0012] However, because the existing negative electrode materials for secondary batteries are in the form of thin plates, the negative electrode materials in the form of thin plates are plated with gold by means of a conductive roller that is raised and lowered in a vertical direction during the copper gold plating operation. However, due to the increased contact area between the conductive roller and the negative electrode material, it is difficult to maintain the tension of the negative electrode material, and deformation of the negative electrode material often occurs due to the increased contact area.

[0013] In addition, in the existing gold plating process of the negative electrode material, while maintaining the tension of the negative electrode material to prevent deformation, when the transfer speed of the negative electrode material product is increased during the process of passing through the gold plating tank, damage such as tearing of the negative electrode material may occur due to friction in the contact area, and the negative electrode material may be easily deformed, so its production speed cannot be increased.

[0014] Prior art literature

[0015] Patent Literature

[0016] (Patent Document 1) Korean Registered Patent Publication No. 10-0884431 “Negative Electrode Material for Secondary Battery and Secondary Battery Using the Negative Electrode Material” (Registration Date: 2009.02.11)

[0017] (Patent Document 2) Korean Registered Patent Publication No. 10-0748791 “Vertical Gold Plating Device and Gold Plating Method” (Registration Date: 2007.08.06) Summary of the invention

[0018] The present invention aims to solve the many existing problems as mentioned above, and its purpose is to provide a secondary battery negative electrode material gold plating device and a gold plating method thereof, which can use the conductive roller of the rectifier to move it in the horizontal direction while maintaining the tension of the negative electrode material by the conductive roller of the upper and lower lifting method during the process of the secondary battery negative electrode material passing through the gold plating tank, thereby obtaining an improved horizontal transfer method.

[0019] Another object of the present invention is to provide a gold-plating device and method for negative electrode materials for secondary batteries with an improved horizontal transfer structure that can prevent deformation such as wrinkles or product damage at the left and right edges by separately controlling the tension at the left and right edges of the negative electrode material.

[0020] In order to achieve the above-mentioned purpose, the present invention is characterized in that it includes: a plurality of conductive rollers, which are arranged inside a chamber equipped with a gold plating tank filled with a gold plating solution, and are driven by a driven component to transfer the negative electrode material for the secondary battery in a horizontal direction, and are arranged up and down to adjust the tension of the negative electrode material; a lifting component, which is used to lift at least one of the conductive rollers up and down; and a slip ring, which is coupled to a connecting shaft connected to the end of the driving shaft of the conductive roller, so as to supply the power of the rectifier to one side of the conductive roller.

[0021] The lifting assembly includes: a bottom plate fixed to the inside of the chamber equipped with the gold-plated groove; a fixed bracket fixed to the left and right side surfaces of the bottom plate respectively; a lifting screw rod, which is respectively coupled to the left and right fixed brackets in a manner of penetrating in a vertical direction, and is equipped with a lifting gear at the upper part, is fastened to a lifting plate supporting the driving shaft of the conductive roller, and causes the lifting plate to move up and down when rotating; a lifting component, which is respectively coupled to the lower left and right sides of the lifting plate, performs a lifting action in the upper and lower directions in a manner linked with the action of the lifting plate, and is coupled in a manner that allows the two side ends of the driving shaft of the conductive roller to pass through, so that the conductive roller is lifted and lowered when the lifting plate is lifted; a linkage component, which is coupled to the lower left side of the lifting plate, and is coupled in a manner that allows the connecting shaft to pass through, so that the connecting shaft is linked up and down when the lifting plate is lifted; and a lifting motor, which is respectively fixed to the left and right sides of the bottom plate, is rotationally driven when power is supplied, and is equipped with a linkage gear meshed with the lifting gear of the lifting screw rod.

[0022] The lifting assembly includes: a bottom plate fixed to the inside of the chamber equipped with the gold-plated groove; a fixed bracket fixed to one side of the center of the bottom plate; a lifting screw rod connected to the fixed bracket in a vertically penetrating manner, and equipped with a lifting gear at the upper part, fastened to the lifting plate supporting the driving shaft of the conductive roller, and lifting the lifting plate up and down when rotating; a lifting component connected to the lower left and right sides of the lifting plate, lifting and lowering in the upper and lower directions in a manner linked to the movement of the lifting plate, and connected in a manner that allows the two side ends of the driving shaft of the conductive roller to pass through, so that the conductive roller is lifted and lowered when the lifting plate is lifted and lowered; a linkage component connected to the lower left side of the lifting plate, connected in a manner that allows the connecting shaft to pass through, so that the connecting shaft is linked up and down when the lifting plate is lifted and lowered; and a lifting motor fixed to the bottom plate, driven to rotate when power is supplied, and equipped with a linkage gear meshed with the lifting gear of the lifting screw rod.

[0023] The lifting assembly includes: a bottom plate fixed to the inside of the chamber equipped with the gold-plated groove; a fixed bracket fixed to the left and right sides of the bottom plate respectively; a lifting screw rod, which is respectively connected to the fixed bracket in a manner of penetrating in the vertical direction, and is equipped with a lifting gear at the upper part, is fastened to the lifting plate supporting the driving shaft of the conductive roller, and causes the lifting plate to move up and down when rotating; a lifting component is connected to the lower side of the lifting plate, and is lifted and lowered in the upper and lower directions in a manner linked to the movement of the lifting plate, and is connected in a manner that allows the two side ends of the driving shaft of the conductive roller to pass through, so that the conductive roller is lifted and lowered when the lifting plate is lifted and lowered; a linkage component is connected to the lower left side of the lifting plate, and is connected in a manner that allows the connecting shaft to pass through, so that the connecting shaft is linked up and down when the lifting plate is lifted and lowered; and a rotating shaft mechanism is respectively arranged on the left and right sides of the bottom plate, is connected to the handle and is rotated and driven by the operator manually, and is equipped with a linkage gear meshed with the lifting gear of the lifting screw rod.

[0024] The lifting assembly also includes: a guide assembly for guiding the up and down lifting movements of the lifting plate; and the guide assembly includes: a guide bracket fixed to the base plate and respectively arranged on the upper and lower sides of the lifting plate; and a guide component combined in a manner of passing through the lifting plate, and the upper and lower ends are combined in a manner of being supported by the guide bracket.

[0025] The lifting screw of the lifting assembly is composed of a first lifting screw and a second lifting screw which are arranged at a distance from each other on the left and right sides to independently control the left and right lifting actions of the driving shaft of the conductive roller, and the lifting motor of the lifting assembly is composed of a first lifting motor and a second lifting motor which include linkage gears respectively meshed with the lifting gears of the first and second lifting screws.

[0026] The driving assembly includes: a driving gear coupled to the driving shaft of the conductive roller; and a rotating motor fixed to a bottom plate provided in a chamber including the gold-plated groove, including a rotating gear meshing with the driving gear, which is rotationally driven when an external power source is supplied, thereby causing the driving shaft to be rotationally driven through the driving gear.

[0027] Another characteristic element of the present invention is a method for gold-plating negative electrode materials of secondary batteries by horizontal transfer, which is characterized in that it includes: a preparation step, in which a plurality of conductive rollers are arranged upper and lower to positions adjacent to the inlet and outlet sides of a gold plating tank filled with gold plating liquid; a transfer step, in which the negative electrode materials for secondary batteries are transferred horizontally to the inside of the gold plating tank between conductive rollers arranged upper and lower and loaded with a rectifier power supply; and a tension adjustment step, in which, during the process of gold-plating the negative electrode materials for secondary batteries by the transfer step, the conductive rollers are raised and lowered by using a lifting component to thereby adjust the tension of the negative electrode materials for secondary batteries.

[0028] In the tension adjustment step, the left and right edge portions of the conductive roller in contact with the secondary battery negative electrode material are raised and lowered separately by the lifting assembly, thereby adjusting the heights of the left and right edge portions of the conductive roller separately.

[0029] In the tension adjustment step, the conductive roller is lifted up and down by a lifting assembly, so as to adjust the tension of the negative electrode material for the secondary battery, and the lifting assembly includes: a fixed bracket fixed to a side surface of a bottom plate provided inside the chamber; a lifting screw coupled to the fixed bracket in a vertically penetrating manner, and equipped with a lifting gear on the upper portion, fastened to a lifting plate supporting a driving shaft of the conductive roller, and lifting the lifting plate up and down when rotating; a lifting member, coupled to the lower side of the lifting plate, lifting and lowering in an upward and downward direction in a manner linked to the movement of the lifting plate, coupled in a manner that allows both side ends of the driving shaft of the conductive roller to pass through, so that the conductive roller is lifted and lowered when the lifting plate is lifted and lowered; a linkage member coupled to the lower left side of the lifting plate, coupled in a manner that allows a connecting shaft to pass through, so that the connecting shaft is linked up and down when the lifting plate is lifted and lowered; and a lifting motor, fixed to the bottom plate, driven to rotate when power is supplied, and equipped with a linkage gear meshed with the lifting gear of the lifting screw.

[0030] The present invention can prevent the negative electrode material for secondary batteries from sagging or deforming by maintaining appropriate tension when the negative electrode material for secondary batteries in the form of a thin plate passes between upper and lower conductive rollers, and can improve productivity by increasing the working speed.

[0031] In addition, since the present invention transfers the negative electrode material for secondary batteries in a horizontal direction, the contact area between the direction-changing roller and the negative electrode material for secondary batteries can be minimized, and the tension of the negative electrode material for secondary batteries in a thin plate form with a wider width can be maintained to prevent damage such as wrinkles or tears during the transfer process.

[0032] In addition, the present invention can finely adjust the tension of the negative electrode material for the secondary battery by finely adjusting the height of the left and right sides of the conductive roller when the lifting motor and the lifting screw of the lifting assembly are respectively arranged on the left and right sides of the lifting plate, thereby preventing the negative electrode material for the secondary battery from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a front view schematically showing the apparatus for gold plating a negative electrode material for a secondary battery using a horizontal transfer method according to the present invention.

[0034] Figure 2 This is a front view showing an example of the lifting assembly of the present invention.

[0035] Figure 3 yes Figure 2 Side view of .

[0036] Figure 4 This is a front view showing another example of the lifting assembly of the present invention.

[0037] Figure 5 It is a schematic diagram illustrating another example of the lifting assembly of the present invention.

[0038] Figure 6 This is a flow chart sequentially illustrating a method for gold plating a negative electrode material for a secondary battery using a horizontal transfer method according to the present invention.

[0039] Description of Reference Numerals

[0040] 10: Chamber

[0041] 30: Negative electrode materials for secondary batteries

[0042] 50: Gilded slot

[0043] 100: Conductive roller

[0044] 110: Drive shaft

[0045] 150: Connecting shaft

[0046] 200: Drive components

[0047] 210: Driving gear

[0048] 220: Rotating motor

[0049] 225: Rotating gear

[0050] 300: Lifting components

[0051] 310: Base plate

[0052] 315: Fixed bracket

[0053] 320: Lifting screw

[0054] 322, 324: First and second lifting screws

[0055] 325: Lifting gear

[0056] 330: Lifting plate

[0057] 340: Lifting parts

[0058] 350: Linkage parts

[0059] 360: Lifting motor

[0060] 362, 364: First and second lifting motors

[0061] 365: Linkage gear

[0062] 370: Rotating axis mechanism

[0063] 372: Handle

[0064] 400: Slip ring

[0065] 500: Guide assembly

[0066] 510: Guide bracket

[0067] 520: Guide components DETAILED DESCRIPTION

[0068] In the process of describing the present invention, when it is determined that the specific description of the relevant known technology or composition may cause the gist of the present invention to become unclear, the detailed description related thereto will be omitted. In addition, the terms used subsequently are defined in consideration of the functions in the present invention and may change according to the intention or convention of the user. Therefore, the definition should be made based on the overall content of this specification. In addition, when it is recorded as "including" a certain constituent element, unless otherwise clearly stated to the contrary, it does not mean that other constituent elements are excluded, but that other constituent elements may also be included.

[0069] See also Figures 1 to 4According to the horizontal transfer method of the secondary battery negative electrode material gold plating device of the present invention, it includes: a plurality of conductive rollers 100, which are arranged inside a chamber 10 equipped with a gold plating tank 50 filled with a gold plating solution, and are driven by a driving component 200 to transfer the secondary battery negative electrode material 30 in a horizontal direction, and are arranged up and down to adjust the tension of the negative electrode material 30; a lifting component 300, which is used to lift at least one of the conductive rollers 100 up and down; and a slip ring 400, which is combined with a connecting shaft 150 connected to the end of the driving shaft 110 of the conductive roller 100, so as to supply power from a rectifier (not shown) to one side of the conductive roller 100.

[0070] Among them, the negative electrode material for secondary batteries is plated with gold by a copper electroplating method.

[0071] See also Figure 1 as well as Figure 2 The gold plating tanks 50 are arranged to be spaced apart from each other inside the chamber 10 , and the negative electrode material 30 is transferred from the inlet on the left side of the gold plating tank 50 to the outlet on the right side.

[0072] The conductive roller 100 is disposed inside the chamber 10 , and is disposed at upper and lower positions adjacent to an inlet side and an outlet side of the gold plating tank 50 .

[0073] The secondary battery negative electrode material 30 passes between the upper and lower conductive rollers 100 while being transferred horizontally from the left side to the right side of the chamber 10 .

[0074] The conductive roller 100 adopts a structure in which the power of the rectifier is supplied to one side of the driving shaft 110 of the conductive roller 100 through the slip ring 400 and the connecting shaft 150 .

[0075] As an example of a lifting assembly 300 for lifting and lowering the current-carrying roller 100, Figure 2 as well as Figure 3As shown, it includes: a bottom plate 310, fixed to the inside of the chamber 10 equipped with the gold-plated groove 50; a fixed bracket 315, fixed to the left and right side surfaces of the bottom plate 310; a lifting screw 320, which is respectively connected to the left and right fixed brackets 315 in a vertical direction, and is equipped with a lifting gear 325 at the upper part, which is fastened to the lifting plate 330 supporting the driving shaft 110 of the conductive roller 100, and makes the lifting plate 330 rise and fall when rotating; a lifting component 340, which is respectively connected to the lower left and right sides of the lifting plate 330, so as to move along the upper and lower parts in a manner linked with the movement of the lifting plate 330 The conductive roller 100 is lifted and lowered in the downward direction and is combined in a manner that allows the two side ends of the driving shaft 110 of the conductive roller 100 to pass through, so that the conductive roller 100 is lifted and lowered when the lifting plate 330 is lifted and lowered; the linkage component 350 is combined to the lower left side of the lifting plate 330 and is combined in a manner that allows the connecting shaft 150 to pass through, so that the connecting shaft 150 is linked up and down when the lifting plate 330 is lifted and lowered; and the lifting motor 360 is respectively fixed to the left and right sides of the base plate 310, is driven to rotate when power is supplied, and is equipped with a linkage gear 365 that meshes with the lifting gear 325 of the lifting screw 320.

[0076] See also Figure 2 The lifting assembly 300 has the function of enabling the connecting shaft 150 axially connected to the driving shaft 110 , the driving shaft 110 , and the conductive roller 100 to perform up and down lifting movements.

[0077] The lifting assembly 300 further includes a guide assembly 500 for guiding the lifting and lowering movements of the lifting plate 330 .

[0078] The guide assembly 500 includes: a guide bracket 510, which is fixed to the base plate 310 and is respectively arranged on the upper and lower sides of the lifting plate 330; and a guide component 520, which is combined in a manner of penetrating the lifting plate 330, and the upper and lower ends are combined in a manner of being supported by the guide bracket 510.

[0079] The lifting screw 320 of the lifting component 300 is composed of a first lifting screw 322 and a second lifting screw 324 which are arranged at a distance from each other on the left and right sides to independently control the left and right lifting actions of the driving shaft 110 of the conductive roller 100, and the lifting motor 360 of the lifting component 300 is composed of a first lifting motor 362 and a second lifting motor 364 which include a linkage gear 365 on the lifting gear 325 which is respectively meshed with the first and second lifting screws 322 and 324.

[0080] Hereby, the lifting assembly 300 is configured in a manner of being fastened to the left and right sides of the lifting plate 330 respectively, so that the first and second lifting screws 322 and 324 can independently control the left and right sides of the driving shaft 110 of the conductive roller 100, and the left and right side heights of the conductive roller 100 can be controlled by independently moving the first and second lifting screws 322 and 324 according to the driving actions of the first and second lifting motors 362 and 364, thereby independently controlling the tension of the left and right edge parts of the negative electrode material 30 for secondary batteries in a thin plate state, thereby preventing deformation such as wrinkle formation or damage such as product tearing.

[0081] Figure 4 It is a schematic diagram illustrating another example of the lifting component of the present invention. The lifting components 300 are not arranged at the left and right sides of the lifting plate 330 at intervals as described above, but a lifting component 300 composed of a lifting motor 360 and a lifting screw 320 is arranged in the central part of the bottom plate 310, so that the conductive roller 100 linked with the lifting plate 330 and the lifting screw 340 can be lifted up and down.

[0082] To this end, another embodiment of the lifting assembly 300 is as follows Figure 4 As shown, the lifting assembly 300 includes: a bottom plate 310, fixed to the inside of the chamber 10 equipped with the gold-plated groove 50; a fixed bracket 315, fixed to the central side of the bottom plate 310; a lifting screw 320, which is connected to the fixed bracket 315 in a vertically penetrating manner, and is equipped with a lifting gear 325 on the upper part, which is fastened to the lifting plate 330 supporting the driving shaft 110 of the conductive roller 100, and makes the lifting plate 330 rise and fall when rotating; a lifting component 340, which is respectively connected to the lower left and right sides of the lifting plate 330, so as to move along the lifting plate 330 in a manner linked to the movement of the lifting plate 330 The conductive roller 100 is lifted and lowered in the upward and downward directions and is combined in a manner that allows the two side ends of the driving shaft 110 of the conductive roller 100 to pass through, so that the conductive roller 100 is lifted and lowered when the lifting plate 330 is lifted and lowered; the linkage component 350 is combined to the lower left side of the lifting plate 330 and is combined in a manner that allows the connecting shaft 150 to pass through, so that the connecting shaft 150 is linked up and down when the lifting plate 330 is lifted and lowered; and the lifting motor 360 is fixed to the base plate 310, is driven to rotate when power is supplied, and is equipped with a linkage gear 365 that meshes with the lifting gear 325 of the lifting screw 320.

[0083] That is, another embodiment of the lifting assembly 300 of the present invention is Figure 4As shown, the conductive roller 100 can be lifted up and down by using a lifting motor 360, a lifting screw 320, a lifting plate 330 and lifting components 340 on both sides, but as described in the above content and in Figure 2 The lifting assembly 300 of the present invention shown in the figure is configured with a lifting motor 360 and a lifting screw 320 at positions separated from each other on the left and right sides of the lifting plate 330, so that the heights of the left and right sides of the conductive roller 100 can be finely controlled separately. Therefore, the tension of the left and right edges of the negative electrode material 30 for secondary batteries that occurs during the horizontal transfer of the negative electrode material 30 for secondary batteries with a wider width can be finely adjusted and controlled, thereby reducing the possibility of deformation such as wrinkles.

[0084] One end of the connecting shaft 150 is connected to the driving shaft of the conductive roller 100 by shaft coupling, and the other end of the connecting shaft 150 protrudes outward from the chamber 10 and is installed with a slip ring 400 .

[0085] The linkage member 350 is coupled to a lower side surface of an end portion of the lifting plate 330 protruding toward the outside of the chamber 10 and is coupled to support the connection shaft 150 .

[0086] The driving assembly 200 includes: a driving gear 210 coupled to the driving shaft 110 of the conductive roller 100; and a rotating motor 220 fixed to a bottom plate 310 provided in a chamber 10 including the gold-plated groove 50, including a rotating gear 225 meshing with the driving gear 210, which is rotationally driven when an external power source is supplied, thereby rotating the driving shaft 110 through the driving gear 210.

[0087] In addition, the driving assembly 200 is formed by a driving gear 210 and a rotating gear 225 in a star-chasing gear meshing structure to facilitate the transmission of the rotational driving force of the lifting motor 360, and the lifting screw 320 can be a threaded screw, namely a TM screw.

[0088] The lifting assembly 300 can be an automatic lifting method as described above, in which the driving shaft 110 and the conductive roller 110 are automatically lifted and lowered by the rotational driving force of the lifting motor 360, or a manual lifting method can be adopted, in which the lifting plate 330 and the lifting component 340 are used as a medium to lift the conductive roller 100 up and down without relying on the driving force of the motor but with the rotational driving force of the manual operation of the operator.

[0089] Another embodiment of the lifting assembly 300 applicable to the manual lifting method is as follows: Figure 5As shown, it includes: a bottom plate 310, fixed to the inside of a chamber equipped with a gold-plated groove 50; a fixed bracket 315, fixed to one side of the left and right sides of the bottom plate 310; a lifting screw 320, which is respectively connected to the left and right fixed brackets 315 in a vertical direction, and is equipped with a lifting gear 325 at the upper part, which is fastened to the lifting plate 330 supporting the driving shaft 110 of the conductive roller 100, and makes the lifting plate 330 rise and fall when rotating; a lifting component 340, which is respectively connected to the lower left and right sides of the lifting plate 330, so as to perform a lifting action in the upper and lower directions in a manner linked with the action of the lifting plate 330, The conductive roller 100 is combined in a manner that allows the two side ends of the driving shaft 110 to pass through, so that the conductive roller 100 is lifted and lowered when the lifting plate 330 is lifted and lowered; the linkage component 350 is combined to the lower left side of the lifting plate 330 and is combined in a manner that allows the connecting shaft 150 to pass through, so that the connecting shaft 150 is linked up and down when the lifting plate 330 is lifted and lowered; and the rotating shaft mechanism 370 is respectively arranged on the left and right sides of the base plate 310, is connected to the handle 372 and is rotated and driven by the manual operation of the operator, and is equipped with a linkage gear 365 that meshes with the lifting gear 325 of the lifting screw 320.

[0090] The handle 372 is arranged on the outside of the chamber 10, and the axis of the handle 372 is axially connected to one side of the rotating axis mechanism 370 in a linked manner. Therefore, when the operator rotates the handle 372 to one side or the other side by manual operation outside the chamber 10, the linkage gear 365 of the rotating axis mechanism 370 will also rotate, thereby causing the lifting plate 330 fastened to the lifting screw 320 to rise and fall.

[0091] Another characteristic element of the present invention is the gold plating method of the secondary battery negative electrode material 30 by horizontal transfer. Figure 1 and Figure 2 as well as Figure 6 As shown, it includes: a preparation step S1, configuring a plurality of conductive rollers 100 up and down to positions adjacent to the inlet and outlet of a gold plating tank 50 filled with gold plating liquid; a transfer step S2, transferring the negative electrode material 30 for secondary batteries to the inside of the gold plating tank 50 through the conductive rollers 100 configured up and down and loaded with rectifier power by horizontal movement; and a tension adjustment step S3, in the process of gold plating the negative electrode material 30 for secondary batteries through the transfer step S2, using the lifting component 300 to lift the conductive roller 100 and thereby adjust the tension of the negative electrode material 30 for secondary batteries.

[0092] In the tension adjustment step S3 , the left and right edge portions of the conductive roller 100 in contact with the secondary battery negative electrode material 30 are raised and lowered separately by the lifting assembly 300 , thereby adjusting the heights of the left and right edge portions of the conductive roller 100 separately.

[0093] In the tension adjustment step S3, the conductive roller 100 is lifted up and down by using a lifting assembly 300, so as to adjust the tension of the negative electrode material 30 for the secondary battery, and the lifting assembly 300 includes: a fixed bracket 315, fixed to a side of a bottom plate 310 provided inside the chamber 10; a lifting screw 320, which is connected to the fixed bracket 315 in a vertically penetrating manner, and is provided with a lifting gear 325 at the upper part, which is fastened to a lifting plate 330 supporting the driving shaft 110 of the conductive roller 100, and makes the lifting plate 330 lift up and down during the rotation action; and lifting components 340, which are respectively connected to the lower side of the lifting plate 330, so as to adjust the tension of the negative electrode material 30 for the secondary battery. The lifting plate 330 is linked to the lifting plate 330 in the upward and downward directions, and is combined in a manner that allows the two side ends of the driving shaft 110 of the conductive roller 100 to pass through, so that the conductive roller 100 is lifted and lowered when the lifting plate 330 is lifted and lowered; the linkage component 350 is combined to the lower left side of the lifting plate 330, and is combined in a manner that allows the connecting shaft 150 to pass through, so that the connecting shaft 150 is linked up and down when the lifting plate 330 is lifted and lowered; and the lifting motor 360 is fixed to the base plate 310, is driven to rotate when power is supplied, and is equipped with a linkage gear 365 that meshes with the lifting gear 325 of the lifting screw 320.

[0094] When the lifting assembly 300 is driven to rotate by the lifting motor 360 as described above, because the linkage gear 365 is meshed with the lifting gear 325 of the lifting screw 320, when the lifting screw 320 rotates in conjunction, the lifting plate 330 fastened with the lifting screw 320 will also perform an up and down lifting action, thereby achieving the function of enabling the driving shaft 110 of the conductive roller 100 supported by the lifting component 340 coupled to the lifting plate 330 to perform an up and down lifting action.

[0095] Furthermore, the driving shaft 110 is driven to rotate by the rotary motor 220 , so that the conductive roller 100 rotates and the secondary battery negative electrode material 30 passing between the conductive rollers 100 disposed above and below is transferred in a horizontal direction.

[0096] In addition, since the slip ring 400 is installed on the connecting shaft 150 coupled to the end of the driving shaft 110 , the power of the rectifier can be supplied to the conductive roller 100 and the negative electrode material 30 for secondary batteries.

[0097] Therefore, in the existing method, in order to perform gold plating on the negative electrode material 30 for secondary batteries, it is transferred in the vertical direction rather than the horizontal direction, and the contact area between the roller used to change the direction and the negative electrode material 30 for secondary batteries becomes larger and the operation speed becomes slower. However, in contrast, the present invention can prevent the negative electrode material 30 for secondary batteries from sagging or deforming by maintaining appropriate tension during the process of the thin plate-shaped negative electrode material 30 passing between the upper and lower conductive rollers 100, and can improve productivity by increasing the operation speed.

[0098] In addition, since the present invention transfers the negative electrode material 30 for secondary batteries in the horizontal direction, the contact area between the direction-changing roller and the negative electrode material 30 for secondary batteries can be minimized, and the tension of the negative electrode material 30 for secondary batteries in the form of a wide thin plate can be maintained to prevent damage such as wrinkles or tears during the transfer process.

[0099] In addition, the present invention can finely adjust the tension of the negative electrode material 30 for the secondary battery by finely adjusting the height of the left and right sides of the conductive roller 100 when the lifting motor 360 and the lifting screw 320 of the lifting assembly 300 are respectively arranged on the left and right sides of the lifting plate 330, thereby preventing the negative electrode material 30 for the secondary battery from being damaged.

[0100] As mentioned above, specific embodiments are described in the detailed description of the present invention. Therefore, the scope of the present invention should not be limited to the embodiments described in the above content, but should be defined in the appended claims and the scope equivalent to the claims.

[0101] That is, the present invention described in the above content is not limited to a specific preferred embodiment, but can be implemented in various modified forms by persons having general knowledge of the technical field to which the present invention belongs without departing from the gist of the present invention as claimed in the claims, and the changes described above are included in the scope of the claims.

Claims

1. A horizontal transfer method for gold plating negative electrode materials for secondary batteries, characterized in that: include: A plurality of conductive rollers (100) are arranged inside a chamber (10) equipped with a gold plating tank (50) containing a gold plating solution, and are driven by a driven component (200) to transfer a negative electrode material (30) for a secondary battery in a horizontal direction, and are arranged up and down to adjust the tension of the negative electrode material (30); A lifting assembly (300) for lifting at least one of the conductive rollers (100) up and down; as well as, A slip ring (400) is coupled to a connection shaft (150) connected to the end of a driving shaft (110) of the conductive roller (100), thereby supplying power from a rectifier to one side of the conductive roller (100).

2. The horizontal transfer type secondary battery negative electrode material gold plating device according to claim 1, characterized in that: The lifting assembly (300) comprises: A bottom plate (310) fixed to the interior of the chamber (10) equipped with the gold-plated groove (50); A fixing bracket (315) is fixed to the left and right side surfaces of the bottom plate (310) respectively; The lifting screw (320) is respectively connected to the left and right fixed brackets (315) in a vertically penetrating manner, and is equipped with a lifting gear (325) on the upper part, which is fastened to the lifting plate (330) supporting the driving shaft (110) of the conductive roller (100), and causes the lifting plate (330) to move up and down when rotating; A lifting component (340) is respectively coupled to the lower left and right sides of the lifting plate (330), and is lifted and lowered in an upward and downward direction in a manner linked to the movement of the lifting plate (330), and is coupled in a manner that allows both side ends of the driving shaft (110) of the conductive roller (100) to pass through, so that the conductive roller (100) is lifted and lowered when the lifting plate (330) is lifted and lowered; A linkage component (350) is coupled to the lower left side of the lifting plate (330) in a manner that allows the connecting shaft (150) to pass through, so that the connecting shaft (150) moves up and down in a linkage manner when the lifting plate (330) is lifted or lowered; and The lifting motor (360) is respectively fixed to the left and right sides of the bottom plate (310), is driven to rotate when power is supplied, and is equipped with a linkage gear (365) meshed with the lifting gear (325) of the lifting screw (320).

3. The horizontal transfer type gold plating device for secondary battery negative electrode material according to claim 1, characterized in that: The lifting assembly (300) comprises: A bottom plate (310) fixed to the interior of the chamber (10) equipped with the gold-plated groove (50); A fixing bracket (315) fixed to a central side of the bottom plate (310); A lifting screw (320) is connected to the fixed bracket (315) in a vertically penetrating manner and is provided with a lifting gear (325) on the upper portion, and is fastened to a lifting plate (330) supporting the driving shaft (110) of the conductive roller (100), and causes the lifting plate (330) to move up and down when rotating; A lifting component (340) is respectively coupled to the lower left and right sides of the lifting plate (330), and is lifted and lowered in an upward and downward direction in a manner linked to the movement of the lifting plate (330), and is coupled in a manner that allows both side ends of the driving shaft (110) of the conductive roller (100) to pass through, so that the conductive roller (100) is lifted and lowered when the lifting plate (330) is lifted and lowered; A linkage component (350) is coupled to the lower left side of the lifting plate (330) in a manner that allows the connecting shaft (150) to pass through, so that the connecting shaft (150) moves up and down in a linkage manner when the lifting plate (330) is lifted or lowered; and The lifting motor (360) is fixed to the bottom plate (310), is driven to rotate when power is supplied, and is equipped with a linkage gear (365) meshed with the lifting gear (325) of the lifting screw (320).

4. The horizontal transfer type secondary battery negative electrode material gold plating device according to claim 1, characterized in that: The lifting assembly (300) comprises: A bottom plate (310) fixed to the interior of a chamber equipped with the gold-plated groove (50); Fixed brackets (315), respectively fixed to the left and right sides of the bottom plate (310); The lifting screws (320) are respectively connected to the fixed brackets (315) in a vertically penetrating manner, and are equipped with lifting gears (325) at the upper part, and are fastened to the lifting plate (330) supporting the driving shaft (110) of the conductive roller (100), and when rotating, the lifting plate (330) is lifted up and down; Lifting components (340) are respectively coupled to the lower side of the lifting plate (330) to perform lifting movements in the upward and downward directions in a manner linked to the movement of the lifting plate (330), and are coupled in a manner that allows both side ends of the driving shaft (110) of the conductive roller (100) to pass through, thereby causing the conductive roller (100) to be lifted and lowered when the lifting plate (330) performs a lifting and lowering movement; A linkage component (350) is coupled to the lower left side of the lifting plate (330) in a manner that allows the connecting shaft (150) to pass through, so that the connecting shaft (150) moves up and down in a linkage manner when the lifting plate (330) is lifted or lowered; and The rotating shaft mechanism (370) is respectively arranged on the left and right sides of the base plate (310), and is connected to the handle (372) to be rotated and driven by the operator's manual operation, and is equipped with a linkage gear (365) that meshes with the lifting gear (325) of the lifting screw (320).

5. The horizontal transfer type gold plating device for secondary battery negative electrode material according to any one of claims 2 to 4, characterized in that: The lifting assembly (300) further includes: A guide assembly (500) for guiding the upward and downward lifting movements of the lifting plate (330); The guide assembly (500) comprises: a guide bracket (510) fixed to the bottom plate (310) and respectively arranged on the upper and lower sides of the lifting plate (330); and The guide component (520) is combined in a manner of penetrating the lifting plate (330), and the upper and lower ends are combined in a manner of being supported by the guide bracket (510).

6. The horizontal transfer type gold plating device for secondary battery negative electrode material according to claim 2, characterized in that: The lifting screw (320) of the lifting assembly (300) is composed of first and second lifting screws (322, 324) which are arranged at intervals on the left and right sides to independently control the left and right lifting actions of the driving shaft (110) of the conductive roller (100). The lifting motor (360) of the lifting assembly (300) is composed of first and second lifting motors (362, 364) including a linkage gear (365) respectively meshed with the lifting gear (325) of the first and second lifting screws (322, 324).

7. The horizontal transfer type secondary battery negative electrode material gold plating device according to claim 1, characterized in that: The driving assembly (200) comprises: a driving gear (210) coupled to the driving shaft (110) of the conductive roller (100); and The rotary motor (220) is fixed to a bottom plate (310) provided in a chamber (10) including the gold-plated groove (50), and includes a rotary gear (225) meshed with the driving gear (210). When an external power source is supplied, the rotary motor (220) is driven to rotate, thereby driving the driving shaft (110) to rotate through the driving gear (210).

8. A method for gold plating a negative electrode material of a secondary battery by horizontal transfer, characterized in that: include: A preparation step (S1) of placing a plurality of conductive rollers (100) at upper and lower positions adjacent to the inlet and outlet of a gold plating tank (50) containing a gold plating solution; A transfer step (S2), transferring the negative electrode material (30) for secondary batteries to the inside of the gold plating tank (50) by horizontal movement between conductive rollers (100) arranged above and below and loaded with a rectifier power source; and A tension adjustment step (S3) is performed to adjust the tension of the negative electrode material (30) for the secondary battery by using a lifting assembly (300) to lift and lower the conductive roller (100) during the gold plating of the negative electrode material (30) for the secondary battery through the transfer step (S2).

9. The method for gold plating a negative electrode material for a secondary battery by horizontal transfer according to claim 8, characterized in that: In the tension adjustment step (S3), the lifting assembly (300) is used to lift and lower the left and right edge portions of the conductive roller (100) in contact with the secondary battery negative electrode material (30) separately, thereby adjusting the heights of the left and right edge portions of the conductive roller (100) separately.

10. The method for gold plating a negative electrode material for a secondary battery by horizontal transfer according to claim 8, characterized in that: In the tension adjustment step (S3), the conductive roller (100) is moved up and down by using a lifting assembly (300), thereby adjusting the tension of the secondary battery negative electrode material (30). The lifting assembly (300) comprises: a fixed bracket (315) fixed to a side surface of a bottom plate (310) provided inside the chamber (10); a lifting screw (320) connected to the fixed bracket (315) in a vertically penetrating manner and provided with a lifting gear (325) at the upper portion, which is fastened to a lifting plate (330) supporting a driving shaft (110) of the conductive roller (100) and causes the lifting plate (330) to move up and down during a rotational movement; and lifting components (340) respectively connected to the lower side of the lifting plate (330) and move up and down in a manner linked to the movement of the lifting plate (330). The conductive roller (100) is combined in a manner that allows the two side ends of the driving shaft (110) to pass through, so that the conductive roller (100) is lifted and lowered when the lifting plate (330) is lifted and lowered; the linkage component (350) is combined to the lower left side of the lifting plate (330) in a manner that allows the connecting shaft (150) to pass through, so that the connecting shaft (150) is linked up and down when the lifting plate (330) is lifted and lowered; and the lifting motor (360) is fixed to the base plate (310), is driven to rotate when power is supplied, and is equipped with a linkage gear (365) that meshes with the lifting gear (325) of the lifting screw (320).

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