61results about How to "Raise the reduction potential" patented technology

The invention provides a lithium-ion battery electrolyte, which is composed of an organic solvent, lithium salt, a novel additive and other conventional additives. The novel additive is a dicyclophosphimide lithium salt or lithium dicyclothiophosphimide lithium salt compound shown in a structural formula 1. The compound shown in structural formula 1 of the invention has a high reduction potentialwhen used as an electrolyte additive, so that the novel additive can participate in the formation of a solid electrolyte film on the surface of a negative electrode in preference to the conventional additives and improve the composition of the interfacial film. Because the additive has a cyclic phosphate structure, the phosphorus-oxygen bond is easy to break under high voltage, and the additive can participate in the formation of a positive electrolyte film and improve the interface stability of the positive electrode material. Therefore, the introduction of the additive can improve the high temperature performance, low temperature performance and cycle performance of lithium-ion batteries.

The invention provides PC (Propylene Carbonate)-based high-voltage electrolyte. The PC-based high-voltage electrolyte comprises a non-aqueous solvent, and a lithium salt and an additive which are dissolved into the non-aqueous solvent; the non-aqueous solvent comprises propylene carbonate (PC) and linear carboxylate; the mass percent content of the propylene carbonate (PC) in the electrolyte is 15%-50%; the additive comprises fluoroethylene carbonate, ethylene sulfate and a dinitrile compound. A solvent system and the additive are optimally combined and used to generate a cooperative effect and are used for a lithium ion battery, so that good cycle life, low-temperature discharging properties and high-temperature storage properties of the battery can still be kept under high voltage.

This invention relates to a sediment improver for aquaculture pond. The sediment improver comprises sodium percarbonate, humus soil, poly (ferric sulfate), attapulgite soil, and zeolite powder. The sediment improver is produced by: weighing the above components, packaging sodium percarbonate alone, mixing the other components, packaging, and sealing the two packages in a big package. The net content of each big package is 1 kg. The sediment improver has such advantages as convenient usage, no environmental influence, low usage amount, rapid acting and stable effect. The sediment improver can obviously reduce the contents of harmful substances in pond bottom, improve the environmental quality of pond sediment and the living condition of aquaculture creatures, prevent diseases and abrupt death of aquaculture creatures, and increase the yield and quality of aquaculture creatures.

The invention relates to a pure cotton fabric reduced dye dyeing method which comprises the following steps: (1) textile preparation; (2) textile pretreatment; (3) preparation of reduced dye leuco body solution; (4) dip dyeing of reduced dye; (5) soap boiling and (6) after-finishing. The reduced dye leuco body solution is prepared by the following raw materials: 1-10g/L thiourea dioxide, 2-5g/L of iso-tridecanol polyoxyethylene ether, 1-2g/L of glucose, 2-5g/L of sodium silicate, and 1-2g/L of sodium sulfide. The K/S value of the dyed textile is obviously improved.

A method and device for producing a minus-ion air similar to a heated compressed hot air stream, electromagnetic waves in the far-infrared and submilimeter region (hereinafter referred to as ''terahertz wave'') by regulating the discharge pressure and the discharge temperature. The device is excellent in versatility, small in size, and low in cost. An object processed by using the method and device, a processing method, and a processing apparatus are also provided. Air is sent from a blower or an air compressor (2) through an air pipe (8) to a heated compressed air regulator (vessel (3)). The air sealed in the heated compressed airregulator (1) regulated under a predetermined discharge pressure (for example, 30 kPa to 150 kPa) and at a temperature (40 DEG C to 250 DEG C) is passed through a through hole (4A) of a circular plate (4) to produce a heated compressed air. In the produced hot air stream, a resonance electromagnetic wave resonating with the natural frequency of the water molecule is generated by a terahertz wave and a generated thermal shock wave, thereby the hydrogen bond of the water molecules in the air is cut, and electrons are released from hydrogen atoms, thus also producing a minus-ion air stream. A processed object, a processing method, and a processing apparatus are so constituted that the produced hot air stream is used for drying, production of a functional water by exposing water to the hot air stream, production of an aqueous fuel, beauty/health appliances, air/water quality improvement devices, combustion efficiency enhancement devices for internal combustion engines, and so forth.

The invention relates to a Pd/C catalyst for producing 2,3,5-trimethylhydroquinone (TMHQ) by virtue of hydrogenation of 2,3,5-trimethylbenzoquinone (TMBQ) and a preparation method thereof. In the Pd/C catalyst provided by the invention, a noble metal Pd supported on a carrier activated carbon exists in a nano particle form, the dispersion degree of Pd is not less than 30%, and the carrier activated carbon has micropores and mesopores. The preparation method comprises the following steps: (1) carrying out acid treatment on the carrier activated carbon, and adding an acid solution in activated carbon for carrying out water bath reflux treatment; (2) washing activated carbon treated by the acid with deionized water to be neutral, and drying so as to obtain the activated carbon carrier; (3) infiltrating the activated carbon carrier with an infiltration liquid in advance; (4) slowly dropwise adding a 0.01-0.3mol/L Pd source solution in the activated carbon carrier which is infiltrated in advance, so that Pd is supported on the activated carbon, thus a catalyst precursor is obtained; and (5) drying the catalyst precursor and then treating the dried catalyst precursor by a reduction method so as to obtain the Pd/C catalyst for producing TMHQ by virtue of hydrogenation of TMBQ. The Pd/C catalyst provided by the invention has the characteristics of being simple and efficient, and having high catalysis property in BTOP (benzene to phenol) reaction.

The invention discloses a method for recycling ultrafine copper powder from waste liquid containing complexing copper, and belongs to the technical field of chemical engineering recycling. According to the technical scheme, the method for recycling the ultrafine copper powder from waste liquid containing the complexing copper comprises the steps of adding a pvp dispersing agent in the waste liquid containing the copper, then adding glucose and NaOH, conducting heating and stirring to conduct a prereduction reaction, after the reaction, adding thiourea dioxide, conducting heating and stirring to conduct a reduction reaction, after the reaction is finished, conducting filtering, conducting washing for two times, conducting ethyl alcohol washing for two times, conducting vacuum drying, and obtaining the ultrafine copper powder. According to the method for recycling the ultrafine copper powder, the copper removal rate is 99%, the granularity of the recycled and obtained ultrafine copper powder can be 700nm-1500nm, the purity of the produced copper powder can be more than 99.95%, and the prepared ultrafine copper powder is applied to a plurality of fields of conducting resin, conductive coatings, conductive composite material raw materials, high-performance catalysts, lubricant additives, nanocrystalline copper, medicines and the like.

A silver alloy reflecting film with high conductivity and electrochemical corrosion resisting performance and a manufacture method thereof are characterized in that the silver alloy reflecting film is an amorphous-state silver alloy reflecting film (3) and contains 0.0001-15 parts by mass of rare earth element and the balance silver element. 0.001-25 parts of one or more of ferrum, cobalt, nickel, tungsten, tin, palladium, gold, rhodium, iridium and ruthenium is further added into the silver alloy reflecting film. In preparation, a glass sheet serves as a substrate (1), chromium, aluminum, titanium, silicon dioxide, the nickel or the ferrum serves as a transition layer (2), and the amorphous-state silver alloy reflecting film (3) is manufactured through vacuum evaporation, magnetron sputtering, ion sputtering, chemical vapor deposition and an electroplating or chemical plating method. The amorphous-state silver alloy reflecting film has the high conductivity and the electrochemical corrosion resisting performance, is simple in manufacture process and is suitable for manufacture of liquid crystal display (LCD) devices, light-emitting diode (LED) devices, organic light emitting diode (OLED) devices, earth current (EC) devices or sensitized solar cell devices.

The invention provides a non-aqueous electrolyte solution for a lithium ion battery and a lithium ion battery adopting the non-aqueous electrolyte solution. The non-aqueous electrolyte solution comprises a non-aqueous solvent, lithium salt dissolved into the non-aqueous solvent and an additive, wherein the additive is prepared from fluoroethylene carbonate (FEC), a dinitrile compound and a fumarate type compound. 1 to 6 percent of FEC in the additive can form good SEI at a cathode, to make sure that the battery is high in cycle performance; 1 to 6 percent of the dinitrile compound in the additive can be complexed with metal ions to reduce decomposition of the electrolyte solution and suppress dissolving out of the metal ions as well as protect an anode and improve the battery performance; 0.1 to 2 percent of the fumarate type compound in the additive can form good SEI at the cathode, to improve the low-temperature discharging performance of the battery.

The invention belongs to the field of a lithium ion battery material, and discloses an electrolyte additive and an electrolyte comprising the additive, and a lithium secondary battery. The electrolyteadditive is 4-methyl-N-tosyl benzene sulfonamide. A cyclic carbonate solvent and a linear carbonate solvent are mixed, and then are subjected to purification, impurity removal and dewatering, and a conductive lithium salt is added in the room temperature condition to obtain a common electrolyte; and next, an additive which accounts for 0.5-3.0% of the mass of the common electrolyte is added to the common electrolyte to obtain the final electrolyte. By taking 4-methyl-N-tosyl benzene sulfonamide as the additive of the lithium ion electrolyte, the cycle performance of the lithium secondary battery at a high pressure is improved.

The invention provides an additive applied to a battery electrolyte, which has a structure as shown in the following (I), and a substituent group is shown in the specification. The invention also provides an electrolyte and a battery using the additive. The additive provided by the invention can effectively reduce the interface impedance and charge transfer impedance between graphite, silicon carbon and other negative electrode materials and an electrolyte, thereby effectively improving the cycle stability and rate capability of the negative electrode materials.

The invention relates to the technical field of organic electroluminescence, and especially relates to a compound, an organic light-emitting device and a display device. The compound has a structure represented by formula (I).

The invention belongs to the technical field of lithium ion batteries, and particularly relates to a ternary lithium ion battery non-aqueous electrolyte and a lithium ion battery. The ternary lithiumion battery electrolyte comprises a non-aqueous organic solvent, an electrolyte lithium salt and an additive, the additive comprises an oxalic acid lithium phosphate additive with a structure shown ina formula (I), and can also comprise conventional additives such as vinylene carbonate (VC), 4-vinyl-1,3-dioxolan-2-one (VEC), 1, 3-propane sultone (PS), ethylene sulfate (DTD), tris (trimethylsilane) phosphate (TMSP) and the like. Under the combined action of the uniquely combined conventional additive and the oxalic acid lithium phosphate additive with the structure shown in the formula (I), the generation of cracks in positive electrode material particles in the circulation process can be inhibited, the dissolution of transition metal elements at high temperature can be reduced, the reduction reaction decomposition of a solvent on a negative electrode interface can be inhibited, the cycle performance, the high-temperature storage performance and the low-temperature performance of the ternary lithium ion battery are effectively improved.

The invention provides electrolyte and a lithium ion battery. The electrolyte contains lithium salt, an organic solvent and an additive, wherein the organic solvent contains a carboxylic ester compound; and the additive contains a silicon alkyl sulfate compound. By applying the electrolyte to the lithium ion battery, the rate capability and high-temperature cycle performance of the lithium ion battery can be improved.

The invention discloses negative electrode slurry, a negative electrode plate, a lithium ion soft package battery cell, a lithium ion battery pack and application thereof. The negative electrode slurry comprises a negative electrode active material, an additive and a solvent, the negative electrode active material comprises a silicon-based composite material, and the additive comprises lithium nitrate. The negative electrode active material comprising the silicon composite material is high in energy density, lithium nitrate has relatively high reduction potential and is easy to reduce and decompose, and the decomposition product can stably coat the surface of the negative electrode active material, plays a role in passivating the negative electrode active material, can effectively inhibitcontinuous side reaction between electrolyte and the negative electrode active material, such as electrochemical reactions, so that the cycle performance of the lithium ion soft package battery cell can be improved, and the cycle life is long.

The invention discloses an application of a nitrile compound in preparation of an electrolyte for a high-voltage battery system. The structural formula of the nitrile compound is shown in the specification, n1, n2 and n3 are integers from 0 to 10 respectively, but are not 0 at the same time, and Rf is a fluorine-containing functional group. The substitution of the F-containing electron withdrawingfunctional group can cooperate with the nitrile functional group to well modify the positive electrode interface layer, thereby further enhancing the high-voltage stability of the battery, F-containing functional groups are substituted, so that the reduction potential of nitrile molecules can be effectively improved, a stable LiF-rich interface layer is formed on a graphite or lithium metal negative electrode, the incompatibility of a nitrile additive to the negative electrode is further improved, and the overall high-voltage stability of the soft package total battery is improved.

The invention discloses a method for preparing aluminum-iron-carbon micro-electrolysis filler. The method includes the following steps that 1, fine iron powder and coal coke powder are mixed; 2, the mixture is calcined to obtain high-carbon iron; 3, the high-carbon iron is smashed into fine particles; 4, an aluminum ingot is melted in protective gas; 5, the melted aluminum ingot and the high-carbon iron powder are jointly mixed in the protective gas, the mixture is cooled and coagulated, and an aluminum-iron-carbon micro-pore block is formed; 6, the aluminum-iron-carbon micro-pore block is cut ready for use. By means of the method, the reduction potential is improved, the removing rate of COD is increased, reaction time is shortened, and the pH application range is wide.

The invention provides a process for treating chemical nickel-plating ageing solution. The process comprises the following steps: simultaneously adding an antifoaming agent and a reducing agent to a heating reduction tank, adopting steam heating; when the temperature rises to 70-100 DEG C, adding caustic soda flakes to perform a reduction reaction, making the reaction temperature be 70-100 DEG C, making the pH be 12-14, and making the reaction time be 20-30 min; purifying ammonia generated in the reaction process through an ammonia absorption tower, adding polyacrylamide after the reaction is ended, obtaining nickel powder and filtrate through high-speed centrifugation, recycling the nickel powder, adjusting the pH of the filtrate to 5-6 and then performing spraying drying, wherein obtained residue belongs to ordinary solid waste, performing outsourcing processing, and finishing treatment of the chemical nickel-plating ageing solution. The nickel concentration of the process filtrate is measured to be smaller than 5 mg/L, acid is added to regulate the PH of the filtrate to the suitable conditions to perform spraying drying, the dried residue undergoes outsourcing treatment, and the whole process is free of waste water discharge.

The invention relates to the technical field of lithium batteries, and provides a modified cyclic phosphazene flame-retardant additive for a lithium battery electrolyte and a preparation method. The method comprises the following steps: preparing hexa(4-hydroxyphenoxy) cyclotriphosphazene by taking hexachlorocyclotriphosphazene and hydroquinone as raw materials; then carrying out mixing and ball milling on graphene nanosheets and oxalic acid, and grafting a carboxyl group on the surface of the graphene; then grafting the carboxylated graphene onto a side chain of hexa(4-hydroxyphenoxy) cyclotriphosphazene, so as to prepare graphene grafted phenoxy cyclotriphosphazene; and finally, performing substitution reaction on phenoxy on the side chain of cyclotriphosphazene by using fluorine gas toprepare graphene grafted perfluorophenoxy cyclotriphosphazene. Compared with the traditional method, the flame-retardant additive prepared by the invention not only can enable a lithium battery to have good flame-retardant performance, but also can improve the conductivity of the electrolyte.

The invention provides an organic photoelectric material, which has a structure represented by a formula I. According to the invention, the organic photoelectric material contains a substituted butadiene skeleton structure, and two double bonds form a conjugated system, so that the thermal stability of the material is improved, and the film-forming property of the organic photoelectric material inthe processing process is further improved; under the combined action of the cross conjugate structure in the molecule and the electron withdrawing group in the substituent group, the molecule has high reduction potential so as to assist the hole transport layer to perform efficient hole injection; and the organic photoelectric material is used as a hole injection layer object material of an OLEDdevice, so that charge injection can be effectively increased, the driving voltage of the OLED device is reduced, the service life of the device is prolonged, and the overall efficiency of the deviceis improved.

The invention discloses a double-phase interface protected metal zinc negative electrode and a preparation method and application thereof.A zinc sheet is placed in a metal fluoride solution through a simple and rapid treatment method to form an artificial double-phase interface of ZnF2 and a metal simple substance, and uniform nucleation and efficient deposition of zinc ions are promoted through the metal simple substance in the double-phase interface, so that the metal zinc negative electrode is obtained. And meanwhile, the ZnF2 protective layer reduces side reactions of polarization and hydrogen evolution corrosion, successfully inhibits growth of zinc dendrites, improves the interface stability between the zinc negative electrode and the electrolyte, and remarkably improves the electrochemical performance of the zinc ion battery.

The invention discloses lithium ion secondary battery electrolyte which comprises a non-aqueous organic solvent and lithium salt dissolved in the non-aqueous organic solvent, wherein the non-aqueous organic solvent contains 6-trimethyl silicon-based pyrone which accounts for 0.5%-5% of the non-aqueous organic solvent in total mass; the structure formula of the 6-trimethyl silicon-based pyrone is described in the specification. An additive containing the 6-trimethyl silicon-based pyrone described in the molecular structural formula is added into the lithium ion secondary battery electrolyte; since the additive has a high reduction potential, a compact and stable solid electrolyte passivation membrane (SEI) can be formed in the process of charging for the first time, so that the co-embedding of propylene carbonate (PC) on graphite can be effectively suppressed, the initial discharge capacity of the battery can be effectively increased, the cycle life of the battery is prolonged, the high and low temperature performance of the battery can be effectively improved, and the problem of the stripping of the graphite in the battery in the charging process can be effectively avoided.