Composite materials containing multilayer metal-encased graphene or graphene composites and their manufacturing methods

Abstract

A composite material containing graphene or graphene composite sandwiched in multiple layers of metal and its manufacturing method thereof includes: taking a circular linear metal substrate as the center, and then covering the substrate with a single layer or multiple layers of metal filler loaded with graphene or graphene composite in a ring shape; forming a convex surface of the substrate and a concave surface of the filler by a preset processing method, process, parameters, and stretching process to clamp and fix the graphene or graphene composite between the convex surface of the substrate and the concave surface of the filler; the composite material thus formed has a tight bond between the materials with almost no gaps, and the joints of the materials can form the same or different fusion states to constitute its electrical or physical properties for application in various electrical devices.

Description

Technical Field

[0001] This invention relates to a composite material, specifically a composite material having a circular diameter linear metal substrate as the center, and then being circumferentially covered by single-layer or multi-layer metal filler layers loaded with graphene or graphene composites, forming a multi-layer metal sandwiched graphene or graphene composite, and a method for manufacturing the same. Prior Technology

[0002] The application of graphene or its composites has become widespread recently, and the research, development, application, and commercial use of graphene or its composites have been widely disclosed.

[0003] The table below lists the electrical and physical properties of the main materials.

[0004]

[0005] The table above shows that graphene materials have excellent properties and can be applied. However, the graphene-related values ​​listed in the table are "theoretical values," and it is almost impossible to achieve these theoretical values.

[0006] Graphene is a newly developed material and has become a popular and promising product in recent years. Competition among manufacturers is inevitable, and each material has its own advantages and disadvantages. Another method involves depositing graphene onto foamed metal, or depositing graphene onto an additional metal layer. This overlapping process requires chemical vapor deposition (CVD), but using special metal foamed substrates and CVD makes the manufacturing process complex and difficult, and it also has its drawbacks.

[0007] The following are examples of relevant prior art:

[0008] TWI 636954 discloses information about graphene dispersions and their preparation methods.

[0009] CN 104862512 discloses "copper-based graphene composite material" or its semi-finished product "copper alloy graphene composite powder".

[0010] CN 108193065 discloses a process of spraying graphene suspension onto copper, followed by drying, cold rolling, and annealing.

[0011] CN 103952588 discloses processing techniques such as ultrasonic dispersion and the semi-finished or finished products therein. The ultrasonic dispersion power of 100W-1000W is also a known application.

[0012] CN 105624445 discloses a mixture of graphene, copper nanoparticles, and cobalt nanoparticles; the mixture is then added to anhydrous ethanol and physically dispersed into a slurry; the slurry is ball-milled into powder and then dried and annealed.

[0013] Patents TWI622663 and TWI682848 both relate to "graphene-metal composites," both involving the deposition of graphene on a porous metal foam substrate followed by compression to form a graphene-metal composite. They share the commonality of using a deposition method and compression. Composites produced by the deposition method must be compressed to a usable finished product; however, whether this "compression" is sufficient to position the graphene to achieve its application performance remains unknown.

[0014] Case TWI535653 utilizes an "Atmosphere Plasma Pressure Jet (APPJ)" device to process the slurry. This device is a commonly known technology.

[0015] The aforementioned prior technologies generally involve alternating layers of copper sheets or foils to sandwich graphene, forming a sandwich structure. Through processes such as pressing, the graphene is uniformly distributed within the copper material, resulting in a graphene-copper composite material with improved performance. However, achieving a uniform dispersion of graphene seems insufficient to truly realize its full potential.

[0016] A review of existing graphene or its composite materials, relevant scientific literature, patent information, and related products has shown that none have achieved the desired results. Therefore, the inventors actively researched and improved upon this invention, and after numerous tests, finally developed the multilayer metal-clad graphene or graphene composite material and its manufacturing method. Summary of the Invention

[0017] Therefore, the present invention aims to provide a composite material of graphene or graphene composite sandwiched in a multilayer metal and its manufacturing method. It is based on the inventor's previous patent TWI658472 "An electrical conductor combined with a composite conductor", and further sandwiches, initially positions and shapes the graphene, and then processes it through processing steps to shape, position, stabilize and stabilize the graphene to make products of various specifications, so as to exert its comprehensive effective performance for application.

[0018] The composite material of graphene or graphene composite sandwiched between multiple metal layers according to the present invention and the manufacturing method thereof involves stably sandwiching graphene or its composite between multiple metal layers, fixing it in the relevant positions through shaping, positioning, orientation, etc., so that it exhibits the advantages of graphene application effects without being affected by external factors, exerting its special or comprehensive characteristics, and the product can be processed into various shapes in addition to cylindrical linear shapes to suit various applications, which is a secondary objective of the present invention.

[0019] According to the present invention, the composite material of graphene or graphene composite sandwiched between multiple metals and the manufacturing method thereof, since the graphene is sandwiched between multiple metals, it can be stable and not exposed to the outside, and can be positioned, shaped and oriented, so as to exert the comprehensive performance of graphene and achieve stable and long-term use. This is another objective of the present invention.

[0020] The multilayer metal-clad graphene or graphene composite material and its manufacturing method according to the present invention provide graphene that is stable, strong, durable, and maintains its optimal shape and position, preventing arbitrary displacement or deformation, and preventing aggregation that would cause it to lose its optimal conductivity and other effects, thus enabling it to perform its intended properties. This is another objective of the present invention.

[0021] To enable the esteemed examiner to gain a further understanding of the specific purpose, shape, structural features, and effects of this invention, embodiments are provided in conjunction with the accompanying drawings for detailed description as follows: Simple Explanation of the Diagram

[0022]

[0023] Figure 1 is a schematic cross-sectional view of the composite material of multilayer metal-clamped graphene or graphene composite of the present invention;

[0024] Figure 2 is an enlarged structural diagram of the graphene used in the composite material of multilayer metal-clamped graphene or graphene composite of the present invention;

[0025] Figure 3 is a cross-sectional schematic diagram of the original substrate and the first filler layer of the composite material of multilayer metal-clamped graphene or graphene composite of the present invention;

[0026] Figure 4 is a cross-sectional view of the composite material of multilayer metal-clamped graphene or graphene composite of the present invention, with a second filler layer added to the composite material in Figure 3;

[0027] Figure 5 is a cross-sectional view of the composite material of multilayer metal-clamped graphene or graphene composite of the present invention, with a third filler layer added to the composite material in Figure 4;

[0028] Figures 6a-6e illustrate the manufacturing method of the composite material of multilayer metal-clamped graphene or graphene composite of the present invention, and are schematic diagrams of the process steps of the composite material shown in Figure 3;

[0029] Figure 6f is a top cross-sectional view of the substrate and filler shown in Figure 6a;

[0030] Figures 7a-7e illustrate the manufacturing method of the composite material of multilayer metal-clamped graphene or graphene composite of the present invention, and are schematic diagrams of the process steps of the composite material shown in Figure 4;

[0031] Figure 7f is a top cross-sectional view of the substrate and filler shown in Figure 7a;

[0032] Figures 8a-8e illustrate the manufacturing method of the composite material of multilayer metal-clamped graphene or graphene composite of the present invention, and are schematic diagrams of the process steps of the composite material shown in Figure 5;

[0033] Figure 8f is a top cross-sectional view of the substrate and filler shown in Figure 8a;

[0034] Figure 9 illustrates the manufacturing method of the composite material of multilayer metal-clamped graphene or graphene composite of the present invention, including a cross-sectional schematic diagram of the stretching and pressing device (eye die) and cross-sectional schematic diagrams of each section;

[0035] Figures 10a-10c are schematic diagrams illustrating the shape changes of the graphene or graphene composite material with multilayer metal clamping according to the present invention. Implementation

[0036] The composite material of multilayer metal-encased graphene or graphene composite of the present invention, as shown in Figure 1, comprises: a base material 1, which is a long linear body disposed in the innermost circle; a second filler 2 that circumferentially covers the base material 1, the second filler 2 can also be regarded as the base material in different locations; a third filler 3 that circumferentially covers the second filler 2; a fourth filler 4 that circumferentially covers the third filler 3; a fifth filler 5 that circumferentially covers the fourth filler 4; and an outermost filler 6 that circumferentially covers the fifth filler 5.

[0037] The graphene or graphene composite 11 is sandwiched between the concave surface of the third filler 3 and the convex surface of the second filler 2 via a second indirect surface 7. The graphene or graphene composite 12 is sandwiched between the concave surface of the fourth filler 4 and the convex surface of the third filler 3 via a third indirect surface 8. The graphene or graphene composite 13 is sandwiched between the concave surface of the fifth filler 5 and the convex surface of the fourth filler 4 via a fourth indirect surface 9. The outermost filler 6 may not contain graphene or graphene composite, or it may serve to protect or strengthen the electrical conductor of the composite material. The graphene or graphene composite 11, 12, and 13 on each of the indirect surfaces 7, 8, and 9 may represent the same or different coverage areas or shapes, or may be composed of combinations or components of graphene or graphene composite. The only difference is that the axial extension of the long line is to allow for the flow of current during use, which can be achieved by utilizing the properties of graphene to increase or enhance the current or other functions.

[0038] The composite material of multilayer metal-encased graphene or graphene composite of the present invention, wherein the graphene or graphene composite used is as follows:

[0039] Graphene powder. The number of graphene layers can be 1 to 10, resulting in individual single or multilayer mixtures;

[0040] A dry mixture of graphene and fine metal powder;

[0041] Graphene solutions, suspensions, and mixtures, such as inks, coatings, and conductive inks; graphene additives, including additives such as water, alcohol, dispersions, suspensions, adhesives, and organic compounds;

[0042] Graphene-metal composites: solid state, foil.

[0043] The present invention relates to a multilayer metal-clad graphene or graphene composite material, wherein the graphene is loaded onto the filler material before the composite material is stretched or compressed. The filler device, heating device, and ultrasonic (high-frequency) device are as follows:

[0044] (1) Graphene:

[0045] Filling device: Quantitative automatic feeding equipment;

[0046] Heating device: capable of evaporating and removing moisture, temperature 200℃;

[0047] Ultrasonic (high-frequency) device: 100~1000Hz adjustment setting.

[0048] (2) Graphene and metal powder mixture: dry powder;

[0049] Filling device: Quantitative automatic feeding equipment;

[0050] Heating device: capable of evaporating and removing moisture, temperature 200℃;

[0051] Ultrasonic (high-frequency) device: 100~1000Hz adjustment setting.

[0052] (3) Graphene suspension mixtures: coatings, inks, pastes;

[0053] Additives: water, alcohol, dispersions, suspensions, adhesives, organic compounds;

[0054] Equipment and methods used:

[0055] For a thinner consistency, the filling device can be a general spray, electrostatic spray, or printing process;

[0056] For a thicker consistency, it can be applied by brushing, coating, or printing;

[0057] Heating device - Heating equipment is used to decompose volatile additives at temperatures of 500℃~1000℃. An Atmosphere Plasma Pressure Jet (APPJ) heating device should be selected.

[0058] Ultrasonic (high-frequency) device - 100~1000Hz adjustment setting.

[0059] (4) Graphene-metal composite: solid, foil.

[0060] (5) The graphene-copper composite is spot-welded to the filler material.

[0061] Please refer to Figure 2, which is an enlarged schematic diagram of the graphene structure used in the composite material of multilayer metal-clamped graphene or graphene composite of the present invention.

[0062] Please refer to Figure 3. The multilayer metal-clad graphene or graphene composite material of the present invention is a first composite material electrical conductor 100, which includes a substrate 101 and a first filler layer 110. The substrate 101 includes an inner substrate 101a and an outer substrate 101b, which may be made of the same or different materials. The first filler layer 110 is attached with graphene or graphene composite 11a. Thus, the first filler layer 110 completely surrounds the substrate 101 with the substrate as the axis, forming a contact surface 121 between it and the substrate 101. The contact surface may still have gaps, but these can be squeezed and stretched into near-seamless state by a die-casting device, and can be further compressed and processed to a predetermined outer diameter.

[0063] Therefore, the graphene or graphene composite in the first composite material conductor 100 and the graphene or graphene composite 11a attached to the first filler 110 are essentially just different descriptions of the components, representing different functions, but are consistent in principle. Among them, the graphene or graphene composite 11a is sandwiched between the convex surface of the original substrate 101 and the concave surface of the first filler 110, and its width is not limited, and it extends longitudinally between the circular lines.

[0064] Please refer to Figure 4. The composite material is a second composite material electrical conductor 200, which includes a second substrate 201 and a second filler 210. The second filler 210 is attached with graphene or graphene composite 12a. The second substrate 201 is the first composite material electrical conductor after extrusion and stretching, so it includes an inner substrate 201a and an outer substrate 201b after extrusion and stretching, and has a first interface 221 and graphene or graphene composite 11a. Compared with Figure 3, it has an additional second filler 210 with graphene or graphene composite 12a attached; the second filler 210 completely surrounds the second substrate 201 with the second substrate 201 as the axis, and forms a second interface 222 between it and the second substrate 201. Although there may still be gaps at the contact surface, they can be extruded and stretched into almost seamless state by a die-casting device, and can be further compressed and processed to a predetermined outer diameter.

[0065] Therefore, the first composite material conductor 100 and the second composite material conductor 200 are conductors before and after stretching. The first filler layer 110 and the second filler layer 210 are merely descriptions of components at different stages, but in principle represent the same function of the components. Among them, the graphene or graphene composite 12a is sandwiched between the convex surface of the second substrate 201 and the concave surface of the second filler layer 210. Its width is not limited. In this figure, it is wider than the graphene or graphene composite 11a in Figure 3. Moreover, these two graphene or graphene composites 11a and 12a can be positioned at the same or different angles. As shown in the figure, they are positioned diagonally opposite each other.

[0066] Please refer to Figure 5. The composite material is a third composite material electrical conductor 300, which includes a third substrate 301 and a third filler layer 310. The third filler layer 310 is attached with graphene or graphene composite 13a. As shown in the figure, the third substrate 301 is a second composite material electrical conductor that has been extruded and stretched again. It includes an inner substrate 301a and an outer substrate 301b that have been extruded and stretched again, and has a first interface 321, a second interface 322, and graphene or graphene composite 11a and 12a. Therefore, compared with Figure 4, it has an additional third filler layer 310 with attached graphene or graphene composite 13a. Therefore, the third filler material 310 with graphene or graphene composite 13a is completely wrapped around the third substrate 301 as the axis, and a third interface 323 is formed between it and the third substrate 310. Although there may still be gaps in the contact surface, it becomes almost seamless after being squeezed and stretched by the eye mold equipment, and is further compressed to the predetermined outer diameter.

[0067] Roughly speaking, in Figures 3, 4, and 5, the first composite material conductor 100, the second composite material conductor 200, and the third composite material conductor 300 represent conductors formed by combining composite conductors at each layer; the original substrate 101, the second substrate 201, and the third substrate 301 may be made of the same or different materials; and the first filler material 110, the second filler material 210, and the third filler material 310 are each attached with graphene or graphene composites 11a, 12a, and 13a.

[0068] As shown in Figures 3, 4, and 5, the original substrate 101, the second substrate 201, and the third substrate 301 are all made of the same structural material. However, due to repeated extrusion and stretching, their outer diameter or area gradually decreases, resulting in the original substrate 101 > the second substrate 201 > the third substrate 301.

[0069] As shown in Figures 3, 4, and 5, the first layer filler 110, the second layer filler 210, and the third layer filler 310 all represent outer filler materials. However, due to repeated extrusion and stretching, their outer diameter or area gradually decreases, resulting in the first layer filler 110 > the second layer filler 210 > the third layer filler 310.

[0070] Similarly, in Figures 4 and 5, the second filler material 210 and the third filler material 310 are caused by repeated extrusion and stretching, resulting in the outer diameter or area of ​​the second filler material 210 being greater than that of the second filler material 310.

[0071] In this invention, the contact surfaces 121, 221, 222, 321, 322, and 320 of the layers in Figures 3 to 5 can vary in structure, composition, and state due to factors such as the material, processing method, procedure, and parameters on both sides. These variations can result in different current effects when using a set device. The graphene or graphene composite 13a is sandwiched between the convex surface of the third substrate 301 and the concave surface of the third filler 310, almost completely filling the space between them.

[0072] The following details the composite material of multilayer metal-clad graphene or graphene composite of the present invention, its manufacturing process, and the special effects and uses it can be applied to.

[0073] Please refer to Figures 6a to 6f, which show the manufacturing process of the composite material of multilayer metal-clamped graphene or graphene composite of the present invention. As shown in Figure 6a, the first substrate 401 is a long columnar body with unlimited length and outer diameter D. It can be a single material or a composite material, and can also be a conductive or non-conductive material, all of which have the characteristic of being compressed and stretched.

[0074] The first filler material 410 is a strip-shaped conductor with graphene or graphene composite 41 attached to it. Its length is unlimited, its width L is determined by the outer diameter or circumference of the first substrate 401, and its thickness T is determined by the preset content ratio of each material, but in principle, it should not exceed the suitable processing range. The first substrate 401 can be annularly covered by the two ends 410a and 410b of the first filler material 410 (with graphene or graphene composite 41 attached).

[0075] As shown in Figure 6b, after the two ends 410a and 410b of the first filler material 410 (with graphene or graphene composite 41) are extended inward to completely cover the first substrate 401, the two ends 410a and 410b of the first filler material 410 are connected together, and the gap 410c between the two ends 410a and 410b can be completely connected by welding; at this time, there is a gap 421a between the first substrate 401 and the first filler material 410.

[0076] After the first substrate 401 and the first filler material 410 are welded, and then processed and compressed by the eye mold equipment, as shown in Figure 6c, the gap 421a between the first substrate 401 and the first filler material 410 almost disappears, becoming an annular joint surface 421; the gap 410c between the two ends 410a and 410b of the first filler material 410 also almost disappears, and its diameter D1 <D+2T。

[0077] After the ends 410a and 410b of the first filler material 410, the gaps 410c and 421a disappear, the material is further processed by a stencil device for compression, stretching, or heating, and annealed to a preset outer diameter D1. The preset outer diameter D1 is equal to the outer diameter D of the original substrate 401 plus twice the thickness 2T of the first filler material 410. After the gaps 421a disappear, the material is further processed by a stencil device for compression, stretching, or heating, and annealed to a preset outer diameter D2 (as shown in Figure 6d), becoming the first composite material 4011. Next, as shown in Figure 6e, the first composite material 4011 is stretched and compressed to become the first composite material electrical conductor 4012 with a wire diameter reduced to the preset usage specification outer diameter D3.

[0078] Please refer to Figure 6f, which shows that the first filler 410 is attached with graphene or graphene composite 41. The two ends 410a and 410b of the first filler 410 are prepared to circumferentially cover the first substrate 401 from the top, so as to clamp the graphene or graphene composite 41 between the convex surface of the first substrate 401 and the concave surface of the first filler 410.

[0079] The proportion of each of the above materials depends on the amount of each material used, and the processing compression ratio, in principle, does not affect the pre-set proportion of each material.

[0080] The choice of materials is determined by the functional requirements of the equipment being used. Different types, properties, compositions, and quantities of materials result in different characteristics when electricity is applied, which can then be applied to the pre-designed equipment.

[0081] The first composite material 4011 shown in Figure 6d is the first filler material 410 whose thickness T is reduced by eye mold processing; the first composite material conductor 4012 shown in Figure 6e is the conductor of the first composite material 4011 further reduced in size; the label D3 in Figure 6e indicates that the outer diameter is reduced to the preset wire diameter.

[0082] Through the process of manufacturing the electrical conductor of the composite material as shown in Figures 6a-6f, interfaces with the same or different properties are formed between the contact surfaces of the same or different materials, such as mixtures, crystals, alloys, oxides, etc. When energized, various current effects are generated, such as skin effect, eddy current, ring current, magnetic effect, thermal effect, crowding effect, or a combination of the above effects, so that it can exert special effects and uses when applied to a predetermined device.

[0083] In particular, when the graphene or graphene composite is sandwiched between metals and subjected to longitudinal stretching and compression, the special graphene or graphene composite can be uniformly shaped and stabilized between the electrical conductor metals, preventing adverse defects such as graphene agglomeration, so as to give full play to its properties.

[0084] That is, the process shown in Figures 6a to 6e produces an electrical conductor of the composite material shown in Figure 3.

[0085] The process steps in Figures 7a to 7f produce an electrical conductor of the composite material shown in Figure 4.

[0086] As shown in Figures 7a to 7e, it includes: a second substrate 501, which serves as the substrate before the second filling and is equivalent to the first composite material 4011; a second filler material 510, with two ends 510a and 510b; a gap 521a between the second filler material 510 and the second substrate 501; a gap 510c between the ends 501a and 510b before tension and compression, and a joint surface 521 after compression and tension; a second composite material 5011; and a second composite material electrical conductor 5012.

[0087] Figure 7f is a cross-sectional side view of Figure 7a, showing the second filler material 510 with graphene or graphene composite 51 attached. The two ends 510a and 510b of the filler material are prepared to circumferentially cover the second substrate 501 upwards, so as to hold the graphene or graphene composite 51 between the two concave and convex surfaces. The graphene or graphene composite 41 and 51 attached as shown in Figures 6aa and 7a have different widths, with graphene or graphene composite 51 > graphene or graphene composite 41. The graphene or graphene composite 51 is positioned directly opposite the graphene or graphene composite 41, forming a 180-degree angle between them. The amount, width, thickness, and relative position angle of the added graphene can be adjusted according to design requirements. The graphene or graphene composite 41 and 51 at different positions in the two layers are sandwiched between different metal layers and subjected to longitudinal stretching and pressing to uniformly shape and stabilize the graphene or graphene composite 41 and 51 between the metals, so as not to produce adverse defects such as graphene agglomeration, and to better exert its properties.

[0088] Following the same process as in Figures 6a-6f, interfaces with the same or different properties are formed between the contact surfaces of the same or different materials. Then, the interface 521 between the second filler material 510 and the second substrate 501 undergoes another processing procedure, either preserving the original interface structure or having different structures under different conditions. By following the eye mold processing steps in Figures 7a to 7e, two layers of the same or different interfaces are formed. When powered on, more kinds of the same or different current effects or their combined effects are generated, achieving special effects when applied to the intended equipment.

[0089] The second substrate 501 and the second filler 510 in Figure 7c have a diameter of D4 after being compressed and stretched by a stencil; the second composite material 5011 in Figure 7d has a diameter of D5 after being compressed and stretched by a stencil; and the second composite material conductor 5012 in Figure 7e has a diameter of D6 after being compressed and stretched by a stencil.

[0090] Similarly, the manufacturing process shown in Figures 8a to 8f is to manufacture the electrical conductor of the composite material shown in Figure 5.

[0091] As shown in Figures 8a to 8f, the process includes: a third substrate 601, which serves as the substrate before the third addition and is equivalent to the second composite material 5011; and a third filler 610, which is covered with graphene or graphene composite 61. At its two ends 610a and 610b, the third substrate 601 is prepared to be wrapped around it circumferentially, thus holding the graphene or graphene composite 61 in a ring shape between the convex surface of the third substrate 601 and the concave arc of the third filler 610. In principle, the graphene or graphene composite 61 almost completely fills the space between the two metal surfaces. After these stages, three types of graphene or graphene composites are formed, each held between different metal layers, as shown in Figures 8a-8b-8c-8d-8e. The wire diameter decreases from large to small, and different sizes are used for different needs. Furthermore, in each position, the three types of graphene or graphene composites are uniformly and stably shaped between the metals, thus avoiding the undesirable defects of graphene aggregation and exerting a greater effect and exhibiting stronger properties.

[0092] The third substrate 601 and the third filler 610 in Figure 8c have a diameter of D7 after being compressed and stretched by a stencil; the third composite material 6011 in Figure 8d has a diameter of D8 after being compressed and stretched by a stencil; and the third composite material conductor 6012 in Figure 8e has a diameter of D9 after being compressed and stretched by a stencil.

[0093] As described above, through the longitudinal stretching and pressing process of the eye mold, interfaces 421, 521, and 621 with similar or different properties are formed between the contact surfaces of the same or different materials. Graphene or graphene composites 41, 51, and 61 are respectively sandwiched between the concave and convex surfaces of each metal layer. The interfaces between the metals and the interfaces where graphene 41, 51, and 61 are sandwiched between the metals form interfaces with different states that are interconnected and mutually restrained, thus maintaining a certain shape. Through this diverse composite effect, products at each stage can be selected, their properties applied, and the most suitable and beneficial effects achieved for each product can be obtained.

[0094] It is worth noting that the unique structure of each layer of filler material is formed through the addition of different layers, allowing for diverse applications. For example, (A) the first, second, and third layers of filler material can be rolled into wires with finer diameters, or coated with insulation, for use as wires and cables with the intended effect. (B) The graphene or graphene composite attached to the first, second, and third layers of filler material can be sandwiched between each filler material. The graphene or graphene composite can be the same or different, the amount attached can be equal or unequal, the distribution can be the same or different, the size can be small or large, and the relative angles of the three can be the same or different, etc., all of which can be selected for application. (C) The processing steps can also be the same or different. All these design variations affect the characteristics during use, resulting in special properties that can be designed for special applications.

[0095] The above description, accompanied by the accompanying drawings, has clearly illustrated the structure and manufacturing method of this invention. It addresses the issue of maintaining the original shape of graphene, further positioning and shaping it to improve its morphology, and preventing its aggregation. This demonstrates that the present invention effectively helps maintain the graphene's shape and fully realizes its comprehensive properties, preventing aggregation and achieving the goal of novel innovation. A more complete explanation of the interaction and interaction between graphene structural changes and the structure of metallic materials will follow.

[0096] Please refer to Figure 9. Graphene or graphene composite 71 is loaded onto the first layer filler 73 by the filling device 72, and then heated by the heating device 74. With the original substrate 75 as the center, the two ends 731 and 732 of the first layer filler 73 are bent towards the axis of the original substrate 75 until the two ends 731 and 732 are tightly joined, forming a convex surface between the original substrate 75 and the convex surface of the first layer filler 73. The graphene or graphene composite 71 is clamped and fixed between these two ends, and then welded by the welding device 76.

[0097] The two ends 731 and 732 are tightly joined together, and the graphene or graphene composite 71 is contained between the two metal arc surfaces. There are still gaps between them. The graphene can be dispersed by the high-frequency device 77 to prevent it from agglomerating. At this time, the initial structure is completed. The graphene can be stretched and compressed by the die 79 of the stretching and pressing device 78. Even if the graphene is stretched axially and compressed laterally, the graphene or graphene composite material 700 can be used according to its properties, or continue to be used as the base material for the next process to manufacture more layers of graphene or graphene composite material.

[0098] Figure 9 contains cross-sectional views (A), (B), (C), and (D) of the graphene or graphene composite material 700 at various stages of its manufacturing process, detailed below:

[0099] Figure 9(A) is a cross-sectional view AA, showing graphene or graphene composite 71 being sandwiched between the first layer filler 73 and the original substrate 75 via the filling device 72 and heating device 74. Figure 9(B) is a cross-sectional view BB, showing that after Figure 9(A) and before the welding process, the side ends 731 and 732 of the filler 73 form a sandwich between the graphene 71 and the original substrate 75. Figure 9(C) is a cross-sectional view CC, showing that after the two side ends 731 and 732 of the filler are closely joined, the welding device 76 is used to weld the side ends 731 and 732 into a welding point 733, temporarily and securely holding and positioning the graphene or graphene composite 71 between the two metal convex and concave arc surfaces. Figure 9 (D) is a cross-sectional view of DD, showing that after the previous welding, the composite material 700 passes through the high-frequency device 77 to disperse and prevent the graphene 71 from agglomerating. It can then be stretched axially and compressed laterally towards the center by the die 79 of the stretching and pressing device 78, further positioning, shaping, and refining the graphene 71. The graphene 71 is held between the two metal substrates and the first-layer filler 73, forming a stable material that can be used in the finished product according to its actual properties, or reused in the substrate of the next process to continue manufacturing more layers of composite materials.

[0100] In summary, all raw materials and equipment used must be properly evaluated before use, as listed below:

[0101] Graphene: powder, 1-10 layers, obtained as individual single layers or mixtures of layers;

[0102] Equipment used:

[0103] Filling device -- automatic quantitative feeding equipment;

[0104] Heating devices – those that remove moisture by evaporation, generally operate at temperatures around 200℃;

[0105] Adjust the high-frequency (high-frequency) device settings to 100~1000Hz.

[0106] Graphene and metal powder mixture: dry powder;

[0107] Use of equipment -- same Graphene.

[0108] Graphene suspensions: mixtures, such as conductive inks, thermal pastes, coatings, etc.

[0109] Additives – such as water, alcohol, dispersions, suspensions, adhesives, organic compounds, etc.;

[0110] Equipment and methods of use--

[0111] For a more viscous coating, the application device can be general spraying, electrostatic spraying, or printing, etc.

[0112] For a thicker consistency, it can be applied by brushing, coating, or printing;

[0113] Alternatively, an appropriate concentration may be selected;

[0114] The heating device should be selected based on the principle of decomposing and volatilizing the additives, and should be set at 500℃~1000℃. Alternatively, an "Atmosphere Plasma Pressure Jet (APPJ)" can be selected.

[0115] High-frequency device - 100~1000Hz adjustment setting.

[0116] Graphene-metal composites: solid or foil

[0117] Ready-made products can be selected; for example, the thickness and width of graphene-copper composites can be determined according to predetermined requirements.

[0118] Alternatively, it can be fixed to the filler material by spot welding, or clamped between the metal.

[0119] Please refer to Figure 10A, which shows an enlarged view of the graphene 71 after the welding process, sandwiched between the uneven surfaces of the first-layer filler 73 and the original substrate 75. The graphene 71 is positioned by the first-layer filler 73 and the original substrate 75, but it still appears disordered with large gaps, making it prone to agglomeration and potentially compromising its electrical and physical properties.

[0120] Next, the composite material 700 is subjected to an ultrasonic (high-frequency) device 77 to prevent agglomeration, i.e., through the eye membrane 79 of the stretching and compression device 78, the composite material 700 is stretched axially and compressed laterally. At this time, the diameter of the composite material 700 decreases and its length increases, and the gap between the two metal layers of the first-layer filler 73 and the original substrate 75 is reduced, so that the graphene 71 is clamped more tightly and the space is reduced, transforming the graphene 71 into graphene 71a and 71b, as shown in Figures 10b and 10c, changing from disordered to more ordered and flat, i.e., obtaining the structure shown in Figure 3, or also the structure shown in Figure 6c, and the graphene composite material of the first molding can also be used in subsequent filler substrate processes.

[0121] Following one or more stretching and pressing processes, combined with annealing, the operation of these stretching and pressing processes is already very common and mature, and does not require detailed explanation. After the predetermined process of the graphene being clamped is completed, the stretching and pressing process extends along the axial direction of the circular strip, and there are fine and coarse variations in the metal layer. Or, the changes in the metal structure grains during the annealing process all affect the morphology of the graphene between the metal clamps, its composition density changes, and its arrangement extends in an orderly manner along the axial direction. When the graphene or graphene composite material is used as a wire, the graphene officially performs its power transmission function. Its current path for axial current transmission is smooth, enhancing its conductivity. Compared with the conductivity of the original metal wire, it should be significantly increased, and its remarkable effect is self-evident.

[0122] The present invention describes a variety of structures and manufacturing methods. It can also utilize bilayer graphene as a raw material, employing appropriate and feasible manufacturing methods, or clamping, positioning, and shaping the bilayer graphene to obtain high-efficiency next-generation devices for specific applications. Furthermore, based on the described various structural forms and multifunctional, multi-option manufacturing methods, the present invention can further develop products specifically selected for bilayer graphene or other combinations.

[0123] In summary, the multilayer metal-clad graphene or graphene composite material and its manufacturing method of this invention possess an unprecedented innovative structure. It has not been published in any journal, and no similar products are available on the market; therefore, its novelty is beyond doubt. Furthermore, the unique features and functions of this invention far surpass conventional methods, thus demonstrating greater advancement and meeting the application requirements for invention patents under the Patent Law of China. Therefore, a patent application is filed in accordance with the law.

[0124] The above description is only a preferred embodiment of the present invention. However, the structural features of the present invention are not limited thereto. Any variations or modifications that can be easily conceived by those skilled in the art within the scope of the present invention can be covered by the following patent scope.

[0125]

[0126] 1: Original substrate

[0127] 2: Second layer of filler material

[0128] 3: Third layer of filler material

[0129] 4: Fourth layer of filler material

[0130] 5: Fifth layer of filler material

[0131] 6: Outermost layer of filler material

[0132] 7: Second indirect face

[0133] 8: Third Indirect Interface

[0134] 9: Fourth indirect face

[0135] 10: Composite materials

[0136] 11, 12, 13, 11a, 12a, 13a: Graphene or graphene complexes

[0137] 100: First composite material electrical conductor

[0138] 101: Raw Material

[0139] 101a: Inner layer substrate

[0140] 101b: Outer and inner layer substrate

[0141] 110: First layer of filler material

[0142] 2T: Thickness of the first layer of filler material

[0143] 121: Interface

[0144] 200: Second composite material electrical conductor

[0145] 201: Second substrate

[0146] 201a: Inner layer substrate

[0147] 201b: Outer and inner layer substrates

[0148] 210: Second layer of filler material

[0149] D, D1, D2, D3: Outer diameter

[0150] L: Width

[0151] T: Thickness

[0152] 221: First interface

[0153] 222: Second interface

[0154] 300: Third composite material electrical conductor

[0155] 301: Third substrate

[0156] 301a: Inner layer substrate

[0157] 301b: Outer and inner layer substrate

[0158] 310: Third layer of filler material

[0159] 321: First interface

[0160] 322: Second interface

[0161] 323: Third interface

[0162] 41: Graphene or graphene complex

[0163] 401: First substrate

[0164] 4011: First Composite Material

[0165] 4012: First composite material electrical conductor

[0166] 410: First layer of filler material

[0167] 410a, 410b: End caps

[0168] 410c: Gap

[0169] 421: Joint

[0170] 421a: Gap

[0171] 51: Graphene or graphene complex

[0172] 501: Second substrate

[0173] 501a, 501b: Both ends of the second substrate

[0174] 510: Second layer of filler material

[0175] 5011: Second composite material

[0176] 5012: Second composite material electrical conductor

[0177] 510a, 510b: End

[0178] 510c: Gap

[0179] 521: Interface

[0180] 521a: Gap

[0181] D4: Diameter of the second substrate and the second filler after compression and stretching by the eye membrane.

[0182] D5: Diameter of the second composite material after compression and stretching through the eye membrane.

[0183] D6: Diameter of the second composite material conductor after compression and stretching through the eye membrane.

[0184] 601: Third substrate

[0185] 61: Graphene or graphene complex

[0186] 610: Third layer of filler

[0187] 610a, 610b: The ends of both sides of the third filler substrate

[0188] D7: Diameter of the third substrate and third filler material after compression and stretching by the eye membrane.

[0189] D8: Diameter of the third composite material after compression and stretching through the eye membrane

[0190] D9: Diameter of the third composite material conductor after compression and stretching through the eye membrane.

[0191] 621: Interface

[0192] 700: Composite materials of graphene or graphene composites

[0193] 71: Graphene or graphene complex

[0194] 71a, 71b: Graphene

[0195] 72: Filling device

[0196] 73: First-level filling material

[0197] 731, 732: Both ends of the first layer of filler material

[0198] 733: Welding point

[0199] 74: Heating device

[0200] 75: Raw material

[0201] 76: Welding equipment

[0202] 77: High frequency wave (high frequency) device

[0203] 78: Stretching and Compression Device

[0204] 79: Eye membrane (die)

Claims

1. A composite material comprising multilayer metal-stretched graphene or graphene composites, comprising: The original substrate of a circular diameter linear metal; A single-layer or multi-layer metal filler material, the surface of which is loaded with graphene or graphene composite and circumferentially encapsulates the original substrate; wherein the convex surface of the original substrate and the concave surface of the filler material together clamp and fix the graphene or graphene composite, and the materials are tightly bonded with almost no gaps. The joints of the materials form the same or different fusion states to form its electrical or physical properties, and are used in pre-designed electrical equipment.

2. A composite material comprising multilayer metal-stretched graphene or graphene composites, comprising: The original substrate of a circular diameter linear metal; A single-layer or multi-layer metal filler material for loading graphene or graphene composites; the filler material is centered on the original substrate, and its two lateral ends are completely wrapped around the original substrate in a ring shape, with the two axial ends connected and the joints tightly joined, forming a space between the convex surface of the original substrate and the concave surface of the filler material, which clamps and fixes the graphene or graphene composite; the filler material is filled in multiple layers, and has a single-layer or multi-layer wrapped into a long strip structure with a circular diameter, and products with the same or different joint surfaces can be formed between the multi-layer joint surfaces, so that they can exert their due electrical or physical effects when used.

3. As in the composite material of multilayer metal-stretched graphene or graphene composite as described in claim 1 or 2, wherein the original substrate is a long column with unlimited length and diameter set according to processing conditions, the filler is a strip with length matching the original substrate and width based on the diameter set by the original substrate, with the principle of suitable for covering the original substrate at both ends; the inner surface of the filler is loaded with graphene or graphene composite, and its thickness is determined according to the cross-sectional area or weight ratio of the preset material used.

4. The composite material of multilayer metal-strapped graphene or graphene composite as described in claim 1 or 2, wherein the graphene or graphene composite may be: graphene powder; graphene with 1 to 10 layers, either as a single or multilayer mixture; a mixture of graphene and fine metal powder, in dry form; a graphene solution, suspension, or mixture, such as ink, coating, conductive ink, etc.; a graphene additive liquid, with additives such as water, alcohol, dispersion, suspension, adhesive, organic compound, etc.; or a solid or foil-like graphene-metal composite.

5. The composite material of multilayer metal-stuffed graphene or graphene composite as claimed in claim 1 or 2, wherein the graphene or graphene composite is repeatedly loaded and sandwiched between the layers of metal by filler material, and the amount or type of graphene used in the multiple additions may be the same or different.

6. The composite material of multilayer metal-strapped graphene or graphene composite as claimed in claim 1 or 2, wherein the graphene or graphene composite is loaded multiple times with filler material, and the area of ​​the graphene or graphene composite loaded with the filler material may be the same or different, or the loading pattern may be the same or different.

7. The composite material of multilayer metal-strapped graphene or graphene composite as claimed in claim 1 or 2, wherein the graphene or graphene composite is loaded multiple times by filler material, and the repeatedly loaded graphene or graphene composite material almost completely covers the plane of the loaded filler material.

8. The composite material of multilayer metal-strapped graphene or graphene composite as claimed in claim 1 or 2, wherein the orientation of the graphene or graphene composite is the same or different in each addition of graphene or graphene composite.

9. The composite material of multilayer metal-stretched graphene or graphene composite as claimed in claim 1 or 2, wherein the graphene or graphene composite is longitudinally stretched and laterally compressed by a stretching and compression device, and the graphene forms a more compact, dense, flat and orderly structure, thereby achieving a stable and enhanced graphene structure.

10. The composite material of multilayer metal-strapped graphene or graphene composite as claimed in claim 1 or 2, wherein the graphene or graphene composite forms a junction between the substrate and the graphene at each layer, which is a junction of various forms or composite forms such as mixtures, crystals, alloys, etc. of the materials in contact with each other, and undergoes multiple filling, stretching, or annealing processes, so that the graphene at each layer forms different states, thereby forming diversified finished products and various electrical or physical effects.

11. A method for manufacturing a composite material of multilayer metal-stretched graphene or graphene composite, comprising a primary substrate of a circular diameter linear metal, graphene or graphene composite, and a single-layer or multilayer metal filler, wherein the manufacturing steps are as follows: Step (1): First, based on the original substrate as the axis, obtain the first layer of filler material. The first layer of filler material is a flat strip with graphene or graphene composite loaded on its surface. Second, wrap the two ends of the filler material around the original substrate and connect them. The joint is tightly joined to form the original substrate's convex surface and the filler material's concave surface together to clamp and fix the graphene or graphene composite. Third, weld the joint by welding. Then, pass the original substrate and the first layer of filler material axially through the eye mold of the stretching and pressing equipment. After compression and stretching, it is processed once or multiple times according to the equipment parameters and process until the preset outer diameter is reached. The first composite material product is then formed. It can be stretched and pressed to obtain the predetermined wire diameter, or the set continuous substrate diameter can be used as the substrate for the next processing. Step (2): Using the first composite material product as the second substrate, obtain the second filler material. The second filler material is a flat strip with graphene or graphene composite loaded on its surface. Following the procedure in step (1), connect and weld the two ends of the second filler material. Depending on the equipment parameters, process once or multiple times to obtain the second composite material product, or continue to use it as the substrate for the next processing. Step (3): Using the second composite material product as the substrate, obtain the third filler material. Process and shape it sequentially according to the procedures in steps (1) and (2) to obtain the third composite material product, or continue to use it as the filler substrate for the next processing. The above steps and processes can continue to be stretched and pressed into finer wire diameters to obtain the same or different electrical or physical properties for application. Moreover, between stretching and pressing processes, an annealing process can be added depending on the changes in product characteristics.

12. The manufacturing method of claim 11, wherein the materials used in each step, the preset specifications and dimensions, the processing methods, conditions, procedures, parameters, cross-sectional area or diameter, and shrinkage ratio are predetermined according to the set target, so as to produce a finished product with predictable specifications and achieve the desired performance characteristics.

13. The manufacturing method of claim 11 or 12, wherein the graphene or graphene composite may include: (1) graphene powder, which may be a plurality of layers of 1 to 10, or a single layer or a mixture of layers; (2) a mixture of dry graphene and fine metal powder; (3) a liquid graphene suspension mixture, wherein the additives may be water, alcohol, dispersion, suspension, adhesive, or organic compound; or (4) a solid or foil graphene-metal composite.

14. The manufacturing method of claim 13, wherein the graphene or graphene composite is loaded onto the filler material before stretching, according to various equipment operating parameters, wherein: (1) Graphene: Filling device: automatic quantitative feeding equipment; Heating device: capable of removing moisture by evaporation, temperature 200℃; High-frequency device: 100~1000Hz adjustable setting. (2) Dry powder graphene and metal fine powder mixture: Filling device: automatic quantitative feeding equipment; Heating device: capable of removing moisture by evaporation, temperature 200℃; High-frequency device: 100~1000Hz adjustable setting. (3) Liquid graphene suspension mixture: can be paint, ink or paste; additives can be water, alcohol, dispersion, suspension, adhesive or organic compound; Equipment and method of use: Filling device - relatively thin - general spraying, electrostatic spraying, printing, etc.; Thick consistency – for brushing, coating, and printing; Heating device – heating equipment to decompose and evaporate volatile additives at temperatures of 500℃~1000℃. Atmosphere Plasma Pressure Jet (APPJ) can be selected; Ultrasonic (high frequency) device - 100~1000Hz adjustment setting. (4) Solid or foil graphene metal composite, which can be graphene copper composite, is fixed to the filler material by spot welding.

15. The manufacturing method of claim 14, wherein the graphene or graphene composite is loaded onto the filler material and is partially, longitudinally, or almost covering the entire area.

16. The manufacturing method of claim 11, wherein when the graphene or graphene composite is loaded onto the filler material each time, the substrate is placed above the filler material on which the graphene or graphene composite has been loaded, so that the substrate is covered and clamped by the filler material two or more times, and the graphene or graphene composite clamped in each of the multiple times can be set to the same or different angles or relative positions, or can be randomly without setting an orientation.

17. The manufacturing method of claim 11, wherein the amount of graphene is determined based on the filler material and is set as the amount of graphene by the ratio of the filler material to 0.01 to 0.5% wt.

18. The manufacturing method of claim 11, wherein the substrate or filler is cylindrical in shape and of unlimited length in the initial process, and the finished product may have various circular lines of different diameters, or be coated with electrical wires for the main purpose, and may be further processed, such as by pressing, deformation, cutting to size or length, to suit the design requirements.

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