Abstract: A double-center quaternary ammonium salt ion liquid having the structural formula (I), wherein n=2, 3 or 6, Y? is BF4?, PF6?, (FSO2)2N?, (CF3SO2)2N? or CF3S3?. Also provided is a method for preparing a double-center quaternary ammonium salt ion liquid. The double-center quaternary ammonium salt ion liquid has high stability, and thus an electrolyte containing the double center quaternary ammonium salt ion liquid has a high decomposition voltage.

Abstract: Disclosed is a double-center bipyridyl cationic ion liquid prepared by reacting bipyridyl with haloalkane for synthesis of dialkyl bipyridyl halide, and converting the halogen ion in the dialkyl bipyridyl halide to the target anion via an ion-exchange reaction, to give the final target ionic liquid. Also disclosed are an organic electrolyte containing the double-center bipyridyl cationic ion liquid and a preparation method therefor.

Abstract: A conductive polymer material and preparing method and uses thereof are provided. The conductive polymer material comprises conductive polymer and fluorinated graphene doping thereof. The weight ratio of the conductive polymer to the fluorinated graphene is 1:0.05-1. The conductive polymer is one of polythiophene or its derivatives, polypyrrole or its derivatives, and polyaniline or its derivatives. The cycle stability of the conductive polymer material is greatly enhanced for doping of the fluorinated graphene, and the conductive polymer contributes to the good capacitance properties. The preparing method can be operated simply with cheaper cost and lower request for equipments, and is suitable for industrial production.

Abstract: Provided is a method for preparing polyacrylonitrile-methyl methacrylate gel electrolyte film. The method comprises the following steps: dissolving polyacrylonitrile-methyl methacrylate in an organic solvent with the mass 1 to 3 times as high as that of polyacrylonitrile-methyl methacrylate, adding MCM-48 mesoporous molecular sieves with the mass 0.05 to 0.3 times as high as that of polyacrylonitrile-methyl methacrylate, heating the mixture to 30-50° C., stirring them uniformly, and obtaining a slurry containing MCM-48 mesoporous molecular sieve; coating the slurry onto the substrate, vacuum drying, and obtaining a mesoporous molecular sieve MCM-48 modified polyacrylonitrile-methyl methacrylate gel electrolyte film. In addition, the corresponding electrolyte and its preparation method are also provided. The polyacrylonitrile- methyl methacrylate gel electrolyte modified by mesoporous molecular sieve MCM-48 has high electrical conductivity and good security.

Abstract: Disclosed is a preparation method of graphene film. The method comprises the following steps: providing a clean substrate, followed by positively charged processing of the substrate surface; preparing suspension of graphene with negative charges on surface and the suspension of graphene with positive charges on surface respectively; immersing the surface-treated substrate into the suspension of graphene with negative charges on surface for 5-20 minutes, then taking the substrate out, washing, drying, and then immersing it into the suspension of graphene with positive charges on surface for 5-20 minutes, then taking the substrate out, washing, drying, so alternately repeated 10 to 50 times to obtain a graphene film precursor, and finally reducing the graphene film precursor at 500-1000° C. to obtain the grapheme film.

Abstract: A fluorographene and preparation method thereof are provided. For the said fluorographene, the fraction of F is 0.5<F %<53.5% in weight and the fraction of C is 46.5%<C %<99.5% in weight. The method comprises the following steps: providing the graphite; preparing the graphene oxide with the graphite; mixing the graphene oxide with the compound containing fluorine by weight ratio of 1:1˜100:1 in anaerobic environment, reacting at 200˜1 000° C. for 1˜10 hours then cooling down to obtain the said fluorographene. The above-mentioned method using graphite to prepare the graphene oxide, then making use of the reaction of graphene oxide with the compound containing fluorine under a certain temperature has simple process and can prepare fluorographene conveniently.

Abstract: Provided is a method for preparing graphene paper, comprising the followings steps: placing a clean substrate into a reaction chamber, then introducing protective gas into the reaction chamber to purge out air in the reaction chamber; heating the substrate at a temperature of 800 to 1100° C.; continuously introducing carbonaceous material into the reaction chamber for 100 to 300 min, stopping the introduction of carbonaceous material into the reaction chamber, and at the same time stopping heating of the substrate, then cooling the substrate at a rate of 5 to 30° C./min, finally, stopping the introduction of the protective gas, thereby obtaining graphene paper on the surface of said substrate.

Abstract: A solid electrolyte battery comprises a positive plate (1), a negative plate (2), several composite electrode plates (3) and several solid electrolyte (4), wherein the number of the solid electrolyte (4) is one more than the number of the composite electrode plates (3). The positive plate (1) and the negative plate (2) are spaced oppositely, the composite electrode plates (3) are between the positive plate (1) and the negative plate (2), and both sides of the composite electrode plates (3) are laminated with the positive plate (1) and the negative plate (2) by the solid electrolyte (4), respectively, the structure of the solid electrolyte battery is formed.

Abstract: Provided are a fluorinated graphene oxide and a preparation method thereof. In the fluorinated graphene oxide, the mass percent of fluorine is 0.5%<F %<40%; the mass percent of carbon is 50%<C %<80%, and the mass percent of oxygen is 0.5%<O %<30%. The preparation method comprises the following steps: providing graphite; preparing graphene oxide by using the graphite; and subjecting the graphene oxide to reacting with a mixed gas of N2 and F2 at 20˜200° C. for 0.5˜24 h, to prepare the fluorinated graphene oxide. The preparation method is simple, has fewer steps, and has better prospect of application.

Abstract: Disclosed is a double-center bipyridyl cationic ion liquid prepared by reacting bipyridyl with haloalkane for synthesis of dialkyl bipyridyl halide, and converting the halogen ion in the dialkyl bipyridyl halide to the target anion via an ion-exchange reaction, to give the final target ionic liquid. Also disclosed are an organic electrolyte containing the double-center bipyridyl cationic ion liquid and a preparation method therefor.

Abstract: A double-center quaternary ammonium salt ion liquid having the structural formula (I), wherein n=2, 3 or 6, Y? is BF4?, PF6?, (FSO2)2N?, (CF3SO2)2N? or CF3S3?. Also provided is a method for preparing a double-center quaternary ammonium salt ion liquid. The double-center quaternary ammonium salt ion liquid has high stability, and thus an electrolyte containing the double center quaternary ammonium salt ion liquid has a high decomposition voltage.

Abstract: A composite material of carbon-coated graphene oxide, its preparation method and application are provided. The method for preparing the composite material comprises the following steps: obtaining graphene oxide; mixing the said graphene oxide and the source of organic carbon according to the mass ratio of 1-10:1 in water to form a mixed solution; making the mixed solution react hydrothermally under the condition of 100˜250° C., cooling, solid-liquid separating, washing, and drying to attain the composite material. The advantages of the preparation method are simple process, low energy consumption, low cost, no pollution and suitable for industrial production. The advantages of composite material are stable structural performance, high electric conductivity. Lithium ion battery and/or capacitor have/has high power density while the composite material is used to prepare the anode material of lithium ion battery and/or capacitor.

Abstract: A conductive polymer material and preparing method and uses thereof are provided. The conductive polymer material comprises conductive polymer and fluorinated graphene doping thereof. The weight ratio of the conductive polymer to the fluorinated graphene is 1:0.05-1. The conductive polymer is one of polythiophene or its derivatives, polypyrrole or its derivatives, and polyaniline or its derivatives. The cycle stability of the conductive polymer material is greatly enhanced for doping of the fluorinated graphene, and the conductive polymer contributes to the good capacitance properties. The preparing method can be operated simply with cheaper cost and lower request for equipments, and is suitable for industrial production.

Abstract: Provided are a preparation method and use of manganese dioxide nano-rod. The preparation method comprises the following steps: mixing manganese salt solution and hydrogen peroxide solution to prepare a mixed solution, and adjusting the pH value of the mixed solution to 4-6; subjecting the mixed solution to hydrothermal reaction at 150-190° C. to produce manganese dioxide precipitate; cooling the product of the hydrothermal reaction, and collecting the manganese dioxide precipitate after solid-liquid separating; washing and drying the manganese dioxide precipitate to obtain the manganese dioxide nano-rod. The method is simple, does not need high temperature calcination, and consumes little energy and oxidant, while the purity of the manganese dioxide is high. The manganese dioxide nano-rod has a high catalytic effect on decomposing hydrogen peroxide.

Abstract: A fluorographene and preparation method thereof are provided. For the said fluorographene, the fraction of F is 0.5<F %<53.5% in weight and the fraction of C is 46.5%<C %<99.5% in weight. The method comprises the following steps: providing the graphite; preparing the graphene oxide with the graphite; mixing the graphene oxide with the compound containing fluorine by weight ratio of 1:1˜100:1 in anaerobic environment, reacting at 200˜1 000° C. for 1˜10 hours then cooling down to obtain the said fluorographene. The above-mentioned method using graphite to prepare the graphene oxide, then making use of the reaction of graphene oxide with the compound containing fluorine under a certain temperature has simple process and can prepare fluorographene conveniently.

Abstract: A Pt/graphene catalyst comprises graphene as carrier, and Pt loaded on the graphene. The use of graphene as carrier for the catalyst takes advantage of the ion effect and two-dimensional ductility of graphene, which increases the stability of the catalyst. The catalyst is prepared by a reverse micelles system method which provides a micro-environment (i.e. water-in-oil microemulsion), so that the particle size of the resulting nano-particles can be regulated easily and is more uniformly distributed. The use of the catalyst in electrochemostry is also disclosed.

Abstract: A Pt—Ru nano-alloy/graphene catalyst comprises graphene as a support, and a Pt—Ru nano-alloy loaded on the graphene. The use of graphene as support for the catalyst takes advantage of the ion effect and tow-dimensional ductility of graphene, which increase the stability of the catalyst. The catalyst is prepared by a reverse micelles system method which provides a micro-environment (i.e. water-in-oil microemulsion), so that the particle size of the resulting nano-alloy particles can be regulated easily and is more uniformly distributed. The use of the catalyst in electrochemistry is also disclosed.

Abstract: A graphene ramification-carbon nanotube composite material and preparation method thereof which includes the following steps: step one, adding the graphene ramification and carbon nanotubes to alcohol dispersant and dispersing for 120-150 minutes by ultrasonic to form a stable suspension; step two, filtrating the suspension, drying the solid substance and cooling it to room temperature to obtain the graphene ramification-carbon nanotube composite material. In the composite material produced by the method, the graphene ramification and carbon nanotube composite form an intermixing and interveining structure to avoid the aggregation and stacking of the graphene ramification, so as to enable complementarities in structure and function of the graphene ramification and carbon nanotubes and improve the conductive property of the composite material.

Abstract: An electrode plate is provided. The electrode plate includes a substrate and a coating coated on the substrate plate, wherein the coating includes fluoride oxide graphene materials. The fluoride oxide graphene material has excellent conductivity, so that the electrode material which is made of the graphene material has high energy density and electrical conduction efficiency. A preparing method for the electrode plate, and a super capacitor and a lithium ion battery both prepared with the electrode plate are also provided.

Abstract: An electrode sheet is provided. The electrode sheet includes a substrate and a coating layer coated on the substrate. The coating layer includes a graphene fluoride stuff, the graphene fluoride stuff has excellent conductivity. An electrode material produced by the graphene fluoride stuff has higher energy density and higher conductivity. Furthermore, a preparation method of the electrode sheet, a super capacitor and a lithium ion battery used the electrode sheet are provided.