CN108123107B - Preparation method of electrode plate for synthesizing carbon nanotube silicon on conductive film and battery thereof - Google Patents
Preparation method of electrode plate for synthesizing carbon nanotube silicon on conductive film and battery thereof Download PDFInfo
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- CN108123107B CN108123107B CN201611062284.2A CN201611062284A CN108123107B CN 108123107 B CN108123107 B CN 108123107B CN 201611062284 A CN201611062284 A CN 201611062284A CN 108123107 B CN108123107 B CN 108123107B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
- H01M4/366—Composites as layered products
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/386—Silicon or alloys based on silicon
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
- H01M4/587—Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/626—Metals
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention discloses a preparation method of an electrode plate for synthesizing carbon nanotube silicon on a conductive film and a battery thereof. The preparation method of the electrode plate comprises the steps of providing an insulating base material; forming a conductive film on the surface of the insulating substrate; carrying out dehydrogenation reaction on the surface of the conductive film by using mixed gas of mixed carbon source gas and silicon source gas at high temperature, so that carbon atoms of the carbon source gas and silicon atoms of the silicon source gas can be reduced on the surface of the conductive film to form a graphene-silicon composite material; and using a carbon nanotube growth catalyst to act on the graphene silicon composite material, so that a carbon nanotube graphene composite material film is formed on the surface of the graphene silicon composite material. The battery is characterized in that an anode electrode plate and a cathode electrode plate are arranged in a battery tank, and an isolating membrane is arranged on the anode electrode plate and the cathode electrode plate, so that the anode electrode plate and the cathode electrode plate have the efficacy of a capacitor.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a method for manufacturing a composite material electrode consisting of graphene, silicon and carbon nanotubes, and a battery using the electrode.
Background
With the advancement of wireless communication technology, mobile communication devices such as mobile phones or tablet computers have become indispensable portable devices for people. For convenience of use, the design of devices such as mobile phones and tablet computers is required to be light, thin, short and small, and the power supplied by the battery is an important factor for achieving random communication. However, it is difficult to satisfy the requirements of high storage capacity and light weight, thinness, short size, and small size of the rechargeable battery used in the mobile phone or tablet computer.
In addition, with the increasing of transportation vehicles, the urban air pollution condition is also worsened. In order to improve the air pollution situation, for example, electric vehicles such as electric bicycles, electric locomotives or electric automobiles, which do not discharge exhaust gas, are very popular. However, the energy source of electric transportation tools such as electric bicycles, electric locomotives or electric automobiles is limited by the limited endurance and the very long charging time provided by the rechargeable battery, which is only dependent on the portable rechargeable battery, and thus the popularization of electric transportation tools is subject to a bottleneck that is difficult to break through.
The primary disadvantage of existing batteries is the long charging time. Since substrate boards have been limited in scale in the past, long term chemical charging was necessary. When charging is performed with a large current for a short time, not only may the surface of the battery be burned to reduce the life of the battery, but also deformation, cracks, and damage due to overheating may be caused. In addition, large current discharge also causes high heat generation and decreases the battery voltage, thereby reducing the battery capacity. For example, the shortest charging time of existing batteries is around thirty minutes, and the longest possible takes as long as 8 hours.
The second disadvantage is a low specific power ratio (specific power ratio). A low specific power ratio results in an excessive weight of the battery. Typical power ratios for lead acid batteries are 30-40 Wh/Kg. The overweight battery greatly limits the further application range and extremely reduces the efficiency of common transportation devices like cars, trains, planes, ships, tanks, etc., which is in fact the main reason why electric cars cannot be popularized in the recent market.
Disclosure of Invention
The invention aims to provide a preparation method of an electrode plate for synthesizing carbon nanotube alkene silicon on a conductive film, which has the effect of synthesizing an active porous carbon nanotube alkene silicon three-dimensional structure composite matrix plate on the conductive film.
The invention aims to provide a preparation method of an electrode plate for synthesizing carbon nanotube silicon on a conductive film, the electrode plate can receive large-current charging, shorten charging time, has extremely high energy storage density and power density, and can meet the high requirements of mobile devices or electric transportation tools on storage capacity, charging time and light weight.
An object of the present invention is to provide a battery having an effect capable of providing a reduction in weight of equipment and a sharp increase in power ratio.
In order to achieve the above objects and effects, the method for manufacturing an electrode plate of the present invention provides an insulating substrate; forming a conductive film on the surface of the insulating substrate; carrying out dehydrogenation reaction on the surface of the conductive film by using mixed gas of mixed carbon source gas and silicon source gas at high temperature, so that carbon atoms of the carbon source gas and silicon atoms of the silicon source gas can be reduced on the surface of the conductive film to form a graphene-silicon composite material; and using a carbon nanotube growth catalyst to act on the graphene silicon composite material, so that a carbon nanotube graphene composite material film is formed on the surface of the graphene silicon composite material.
Preferably, the graphene-silicon composite material is formed on the surface of the conductive film by one of a vacuum sputtering method, a coating method and a chemical vapor deposition method.
Preferably, in the graphene-silicon composite material, the weight ratio of the graphene is 70-95%, and the weight ratio of the silicon is 30-5%; and taking copper with the molar concentration of 0.01-0.05 mol/L as a carbon nanotube growth catalyst, and matching with the temperature of 800-1000 ℃ to form carbon nanotubes on the surface of the graphene silicon composite film, thereby synthesizing the active porous carbon nanotube-silicon composite film.
Preferably, the weight ratio of graphene in the carbon nanotube-silicon composite film is 65-90%; the weight ratio of silicon is 25-5%; the weight ratio of the carbon nanotubes is 5-10%.
Preferably, the carbon source gas is selected from one or more of methane, ethane, ethylene, acetylene; the silicon source gas is silicon tetrahydride; the mixed gas is mixed according to the flow rate of the carbon source gas being 50-300 ml/min and the flow rate of the silicon source gas being 5-300 ml/min.
Preferably, the conductive thin film is selected from one of aluminum, copper, nickel, lithium, lead-calcium alloy, aluminum-lithium alloy, stainless steel and iron.
The battery disclosed by the invention is characterized in that the electrolyte is arranged in a battery jar; an anode electrode plate is arranged in the battery jar, the anode electrode plate is a conductive film formed on the surface of an insulating substrate, and a carbon nanotube-silicon composite material film is formed on the surface of the conductive film; a cathode electrode plate is arranged in the battery jar, the cathode electrode plate is an insulating substrate surface to form a conductive film, and a carbon nanotube-silicon composite material film is formed on the conductive film surface; a separator disposed between the anode electrode plate and the cathode electrode plate; small gaps are formed among the anode electrode plate, the cathode electrode plate and the isolating membrane, so that the anode electrode plate and the cathode electrode plate have the function of a capacitor.
Preferably, the conductive thin film is selected from one of aluminum, copper, nickel, lithium, lead-calcium alloy, aluminum-lithium alloy, stainless steel and iron.
Preferably, the weight ratio of graphene in the carbon nanotube-silicon composite film of the anode electrode plate is 65-90%; the weight ratio of silicon is 25-5%; the weight ratio of the carbon nanotubes is 5-10%.
Preferably, the weight ratio of graphene in the carbon nanotube-silicon composite film of the cathode electrode plate is 65-90%; the weight ratio of silicon is 25-5%; the weight ratio of the carbon nanotubes is 5-10%.
The invention has the beneficial effects that:
the invention provides a preparation method of an electrode plate for synthesizing carbon nanotube alkene silicon on a conductive film and a battery using the electrode plate, wherein the preparation method has the effect of synthesizing an active porous carbon nanotube alkene silicon three-dimensional structure composite matrix material plate on the conductive film; the electrode plate can receive large current for charging, shortens charging time, has extremely high energy storage density and power density, and can meet the high requirements of a mobile device or an electric transportation tool on storage capacity, charging time and light weight; the battery has the effect of providing a reduction in the weight of the device and a dramatic increase in the power ratio.
Drawings
FIG. 1 is a block diagram of a process for preparing an electrode plate according to the present invention.
FIG. 2 is a schematic structural diagram of an electrode plate according to the present invention.
Fig. 3 is a schematic structural view of a battery according to the present invention.
Fig. 4 is an equivalent circuit diagram of the battery of the present invention.
Reference numerals
10: a substrate providing step; 12: a conductive film forming step; 14: a composite material film forming step; 20: an insulating base material; 22: a conductive film; 24: a carbon nanotube-silicon composite film; 30: a battery; 32: a battery case; 34: an anode electrode plate; 36: a cathode electrode plate; 38: an isolation film; 40: a capacitor; 42: an inner battery.
Detailed Description
Referring to fig. 1, a method for preparing an electrode plate for synthesizing carbon nanotube silicon on a conductive film is shown, which includes the following steps: a substrate providing step 10, a conductive film forming step 12, and a composite material film forming step 14.
The substrate providing step 10 is for providing an insulating substrate; further, the insulating substrate is selected from one of self-terminated oligomer (STOBA), polyimide film (PIF), Polyethylene terephthalate (PET) and Polyethylene film (PE).
The conductive film forming step 12 is to form a conductive film on the surface of the insulating substrate by vacuum sputtering. The material of the conductive film can be selected from aluminum, copper, nickel, lithium, lead-calcium alloy, aluminum-lithium alloy, stainless steel and iron.
The composite material film forming step 14 is to use a chemical vapor deposition method, and use hydrocarbon gas such as methane, ethylene, ethane, acetylene, etc. as a carbon source gas at a high temperature, and use silicon hydride as a silicon source gas, and perform catalytic and dehydrogenation reactions on the surface of the conductive film according to different flow ratios of the carbon source gas and the silicon source gas, so that carbon atoms and silicon atoms are reduced on the surface of the conductive film to form the graphene silicon composite material. Furthermore, a carbon nanotube growth catalyst is used to act on the graphene-silicon composite material, so that a carbon nanotube-silicon composite material film is formed on the surface of the graphene-silicon composite material. It is noted that, in the graphene-silicon composite material, the weight ratio of the graphene is 70-95%, and the weight ratio of the silicon is 30-5%.
The high temperature disclosed in the composite material film forming step 14 is 800 to 1000 ℃. The flow rate of the mixed gas of the carbon source gas and the silicon source gas can be mixed according to the flow rate and the flow rate of the carbon source gas of 50-300 ml/min and the flow rate of the silicon source gas of 5-300 ml/min. The carbon nanotube growth catalyst is 0.01-0.05 mol concentration of copper (i.e. 0.01-0.05 mol/L of copper).
In addition, a graphene silicon composite material can be formed on the surface of the conductive film of the insulating substrate by using a vacuum sputtering method or a coating method. And then, by regulating and controlling conditions such as different temperatures, time, reaction gas flow rate ratio, metal catalyst (metal catalyst) concentration and the like on the surface of the conductive graphene silicon composite material by using a chemical vapor deposition method, a carbon nanotube is formed on the surface of the graphene silicon composite material on the surface of the conductive film, so that the carbon nanotube-silicon composite material film is synthesized on the conductive film.
In addition, the composite film forming step 14 can also deposit another carbon nanotube-silicon composite film on the surface of the carbon nanotube-silicon composite of the insulating substrate by vapor deposition, so as to improve the capacity of the battery.
Referring to fig. 2, the electrode structure fabricated according to the above method includes an insulating substrate 20 having a conductive film 22 on the surface thereof. Further, a carbon nanotube-silicon composite film 24 is formed on the surface of the conductive film 22. Wherein the weight ratio of graphene in the carbon nanotube-silicon composite film 24 is 65-90%; the weight ratio of silicon is 25-5%; the weight ratio of the carbon nanotubes is 5-10%; under the condition that the total weight ratio of the graphene, the silicon and the carbon nanotubes satisfies 100%, the weight ratio of each component can be selected appropriately according to actual conditions.
In addition, in the carbon nanotube-silicon composite film 24, the graphene-silicon composite is in the form of particles,
the grain diameter is 1-10 microns and the inside is a pore structure; the graphene is layered, and at least one layer of the graphene of the present invention, in other words, the graphene may be single-layered or multi-layered.
Gaps exist between the graphene and the silicon source in the graphene-silicon composite material, and the gaps play a role of a buffer layer and promote the diffusion of metal ions; the existence of the graphene can increase the electron transmission capability and also plays a role of a buffer layer. By taking a lithium battery as an example, the graphene silicon composite material integrates the advantages of a graphene-based material and a porous material, and solves the problems of low specific capacity, poor loop performance (loop life performance) and rate capability and low coulombic efficiency of the silicon-based material as a lithium ion battery cathode material. According to the invention, the alkene silicon composite material is deposited on the surface of the conductive film 22, so that the conductive film 22 has the characteristics of abundant holes and excellent heat conduction and dissipation.
In addition, the growth direction of the carbon nanotubes is perpendicular to the plane direction of the graphene. The carbon nanotube-silicon composite film 24 formed on the surface of the conductive film 22 is an active porous carbon nanotube-silicon composite film with three-dimensional directions.
Referring to fig. 3, a highly efficient battery 30 based on active porous carbon nanotube-based silicon composite is shown. The battery 30 is configured with an active material, conductive material, binder, electrolyte, an anode electrode plate 34, a cathode electrode plate 36 and a separator 38 in a battery case 32. The battery container (packaging container) 32 of the battery 30 may be made of polyvinyl chloride (PVC) coated aluminum foil, and the battery 30 may be further configured with a protection circuit board. The anode electrode plate 34 and the cathode electrode plate 36 can adopt the aforementioned substrate, that is, the conductive film is formed on the surface of the insulating substrate, and the active porous carbon nanotube-silicon composite film is formed on the surface of the conductive film. For example, the anode electrode plate 34 can be made of aluminum foil or stainless steel by sputtering or spraying on the insulating substrate to form the conductive film. The cathode electrode plate 36 can be formed by a copper foil or lithium metal on the surface of the insulating substrate by double-surface sputtering or spraying. The surfaces of the anode electrode plate 34 and the cathode electrode plate 36 are respectively formed with the carbon nanotube-silicon composite film. The separator 38 is disposed between the anode electrode plate 34 and the cathode electrode plate 36. The battery 30 formed as described above has a function like a large-capacity capacitor because of the small gaps between the anode electrode plate 34, the cathode electrode plate 36 and the separator 38.
The active porous carbon nanotube-based silicon composite material film itself includes quantum size effect (quantum size effect), micro size effect (microsizingeffect), surface effect (surface effect), and macroscopic quantum tunneling (macroscopic quantum tunneling). It has a relatively large surface area, a high rate of activity and density, and a high rate of heat dissipation. It will therefore result in very little current concentration even with high currents. In other words, the anode electrode plate 34 and the cathode electrode plate 36 with the active porous carbon nanotube-based silicon composite film do not generate too much joule heat and have no significant thermal effect when passing large charging and discharging current. Therefore, the invention can greatly reduce the charging time.
In addition, the combination of the anode electrode plate 34, the cathode electrode plate 36, and the separator 38 forms a capacitor-like function. The isolation film 38 is made of high-molecular-weight high-insulation cloth and is matched with the size of the battery groove 32 of the battery 30. Since the combination is equal to the parallel connection of the capacitor and the battery, the combination has the dual characteristics of the capacitor-like and the high-capacity battery.
Referring to fig. 4, the equivalent circuit of the battery 30 of the present invention is further analyzed: when discharged, the capacitor 40 is discharged first, which is suitable for high current discharge processes. At an excessively long discharge time, the inner cell 42 can be slowly discharged because it has a characteristic of being slowly discharged during a long discharge time. The total discharge current amount is equal to the sum of the currents of both the capacitor 40 and the internal battery 42. When charging, the capacitor 40 is charged first, which will prevent a possible explosion due to overload current. The total amount of charging current is equal to the sum of the currents of the capacitor 40 and the internal battery 42.
And the second inner battery 42 has the same operating voltage (V) as the capacitor 40. If the current of the internal battery 42 is (I), the power output by the internal battery 42 will be E-IV. If the capacitance of the capacitor 40 is C, the power output by the capacitor is W-1/2 CV 2. The sum of the output power of the battery 30 is P ═ E + W. It is clear that the sum of the powers of the present invention is much greater than the power that can be provided by the internal battery 42 or one of the capacitors 40. In other words, the present invention has the effects of reduced weight of the apparatus and drastically increased power ratio.
In summary, the present invention provides a high efficiency battery 30 having a porous carbon nanotube-based silicon composite that can accept and provide high current charge/discharge to shorten the charge time. The battery 30 has a high power ratio, and can reduce the weight of the battery, and has an effect of expanding the application range of the battery 30 in modern life. In addition, the present invention reduces the weight and increases the charging current, so that the battery 30 greatly increases the whole power ratio to over 237Wh/Kg, and the power density can reach over 1000W/Kg. The invention also has the characteristics of a battery and a capacitor, wherein the capacitor is from 8 mu F to 3000 mu F, and the battery capacity is from 150mAh to 2000 Ah. Moreover, the weight of the lead-acid battery is only one tenth of that of the lead-acid battery, and the volume of the lead-acid battery is only one eighth of that of the lead-acid battery. The minimum flow time is 300 seconds. Therefore, the invention can be widely applied to the industrial field, mass transportation, national defense and the like.
Claims (6)
1. A method for preparing an electrode plate for synthesizing carbon nanotube silicon on a conductive film is characterized by comprising the following steps: providing an insulating substrate;
forming a conductive film on the surface of the insulating substrate; carrying out dehydrogenation reaction on the surface of the conductive film at the temperature of 800-1000 ℃ by using a mixed gas of a carbon source gas and a silicon source gas, so that carbon atoms of the carbon source gas and silicon atoms of the silicon source gas can be reduced on the surface of the conductive film to form a graphene-silicon composite material, wherein the graphene-silicon composite material is in a single-layer or multi-layer structure form, the apparent form of the graphene-silicon composite material is particles, the particle size of the graphene-silicon composite material is 1-10 microns, and the interior of the graphene-silicon composite material is in a hole structure; in the graphene-silicon composite material, the weight proportion of the graphene is 70-95%, and the weight proportion of the silicon is 30-5%;
and using a carbon nanotube growth catalyst, and matching with the temperature of 800-1000 ℃ to act on the graphene silicon composite material, so that carbon nanotubes are formed on the surface of the graphene silicon composite material film, and further synthesizing an active porous carbon nanotube graphene composite material film;
the weight ratio of graphene in the carbon nanotube-silicon composite film is 65-90%; the weight ratio of the silicon accounts for 25-5%; the weight ratio of the carbon nano-tube is 5-10%.
2. The method of claim 1, wherein the graphene-silicon composite material is formed on the surface of the conductive film by one of a vacuum sputtering method and a coating method.
3. The method for preparing an electrode plate for synthesizing carbon nanotube silicon on a conductive film according to any one of claims 1 to 2, wherein the carbon source gas is selected from one or more of methane, ethane, ethylene and acetylene; the silicon source gas is silicon tetrahydride; the mixed gas is mixed according to the flow rate of the carbon source gas being 50-300 ml/min and the flow rate of the silicon source gas being 5-300 ml/min.
4. The method of claim 1, wherein the conductive film is selected from the group consisting of aluminum, copper, nickel, lithium, lead-calcium alloy, aluminum-lithium alloy, stainless steel, and iron.
5. A battery, comprising: a battery container, inside which electrolyte is arranged;
an anode electrode plate installed in the battery container, wherein the anode electrode plate is an insulating substrate surface formed with a conductive film, and the carbon nanotube-silicon composite film of claim 1 is formed on the conductive film surface;
a cathode electrode plate installed in the battery container, wherein the cathode electrode plate is an insulating substrate surface formed with a conductive film, and the carbon nanotube-silicon composite film of claim 1 is formed on the conductive film surface;
an isolating film arranged between the anode electrode plate and the cathode electrode plate; small gaps are formed among the anode electrode plate, the cathode electrode plate and the isolating membrane, so that the anode electrode plate and the cathode electrode plate have the function of a capacitor.
6. The battery of claim 5, wherein the conductive film is selected from one of aluminum, copper, nickel, lithium, lead calcium alloy, aluminum lithium alloy, stainless steel, and iron.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103730658A (en) * | 2012-10-16 | 2014-04-16 | 海洋王照明科技股份有限公司 | Silicon and graphene composite material, preparing method thereof and lithium ion battery |
| CN104064736A (en) * | 2013-03-21 | 2014-09-24 | 海洋王照明科技股份有限公司 | Carbon nanotube/silicon/graphene composite material, preparation method thereof and lithium ion battery |
| CN105261778A (en) * | 2014-07-15 | 2016-01-20 | 廖伟豪 | Graphene battery and manufacturing method of electrode plate for graphene battery |
| CN106133965A (en) * | 2013-11-15 | 2016-11-16 | 加利福尼亚大学董事会 | Mixing nano structural material and method |
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| US9774033B2 (en) * | 2015-03-27 | 2017-09-26 | Nanotek Instruments, Inc. | Process for producing silicon nanowires directly from silicon particles |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730658A (en) * | 2012-10-16 | 2014-04-16 | 海洋王照明科技股份有限公司 | Silicon and graphene composite material, preparing method thereof and lithium ion battery |
| CN104064736A (en) * | 2013-03-21 | 2014-09-24 | 海洋王照明科技股份有限公司 | Carbon nanotube/silicon/graphene composite material, preparation method thereof and lithium ion battery |
| CN106133965A (en) * | 2013-11-15 | 2016-11-16 | 加利福尼亚大学董事会 | Mixing nano structural material and method |
| CN105261778A (en) * | 2014-07-15 | 2016-01-20 | 廖伟豪 | Graphene battery and manufacturing method of electrode plate for graphene battery |
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