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39results about How to "Improve dissociation ability" patented technology
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Organic electrolytic solution for super capacitor and super capacitor
InactiveCN103730263AImprove solubilityImprove dissociation abilityHybrid capacitor electrolytesInternal resistanceProton
The invention discloses an organic electrolytic solution for a super capacitor. The organic electrolytic solution for the super capacitor comprises a proton inert solvent, an organic electrolyte and an additive. Preferably, the organic electrolyte and the proton inert solvent form a 0.5-2.0mol / L solution. The additive accounts for 0.05wt%-5wt% of the organic electrolytic solution. The organic electrolytic solution for the super capacitor has the advantages that appropriate proton inert solvent components and the appropriate additive are selected, the solution ability and the dissociation ability of the electrolyte in the proton inert solvent are improved, the ion conductivity of the electrolytic solution is improved, so that the internal resistance of the organic electrolytic solution is reduced, the electrochemical stability window of the electrolytic solution is improved, and therefore the super capacitor can be used at a high working voltage (over 2.7V) and is high in power density and energy density and long in cycle life.
Owner:SHENZHEN CAPCHEM TECH CO LTD
Mud phosphor recovery and refining method
The invention discloses a new recycling and refining method of sludge phosphor, which comprises the following steps: placing sludge phosphor in the rotary phosphor distilling furnace to recycle phosphor; adding dispersant; transmitting rough phosphor into phosphor-fused groove; inputting steam in the phosphor-fusing groove to remove fluorine; transmitting phosphor into refined groove; aerating hot water; heating to bleach; transmitting phosphor into product groove to obtain the yellow phosphorus.
Owner:胡晓丽 +1
Preparation method of bioactive porous tantalum implant
ActiveCN111481738AImprove dissociation abilityImprove distribution uniformitySurface reaction electrolytic coatingTissue regenerationElectrolytic agentMicro arc oxidation
The invention discloses a preparation method of a bioactive porous tantalum implant, which comprises the following steps: carrying out acid pickling treatment on a three-dimensional porous tantalum implant material to obtain a pretreated material; performing micro-arc oxidation treatment on the pretreated material, an in-situ growth film layer with bioactive substances is formed on the surface ofthe pretreated material, and an electrolyte adopted in the micro-arc oxidation treatment comprises bioactive functional substances; and carrying out hydrothermal treatment on the in-situ growth film layer to obtain the bioactive porous tantalum implant. Tests prove that the in-situ growth film layer can effectively endow the three-dimensional porous tantalum implant material with a biological activity function. The prepared porous tantalum implant with the living activity is simple in technological process, easy to realize industrial production, simple in electrolyte and hydrothermal treatmentsolution components, free of pollutants, easy to control and low in cost, can be used for preparing various orthopaedic implant materials, and has a wide application prospect.
Owner:天衍医疗器材有限公司
Cross-linking modified polyethyleneimine solid electrolyte and application thereof
ActiveCN110071328AImprove securityImprove thermal stabilitySolid electrolytesHybrid capacitor electrolytesCross-linkPolymer science
The invention discloses a cross-linking polymer solid electrolyte. Raw materials of the cross-linking polymer solid electrolyte comprise modified polyethyleneimine, a cross-linking agent and lithium salt. An interpenetrating network material is formed by heating and cross-linking reaction of the modified polyethyleneimine, the cross-linking agent and the lithium salt. The cross-linking polymer solid electrolyte has high thermal stability, high ionic conductivity and a high electrochemical window, and can be widely applied in electrochemical energy storage devices such as lithium ion batteries,supercapacitors and solar batteries.
Owner:GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
Radiation-sensitive resin composition, polymer, compound, and method for producing compound
ActiveUS9465291B2Improve dissociation abilityImprove performanceOrganic chemistryOrganic compound preparationCompound aHydrogen atom
A radiation-sensitive resin composition includes a polymer that includes a structural unit represented by a formula (1), and an acid generator. R1 is a hydrogen atom, a fluorine atom, or the like. R2 is a hydrogen atom or a monovalent hydrocarbon group. R3 is a hydrogen atom, a monovalent chain hydrocarbon group, or the like. R4 is a hydrogen atom, a monovalent chain hydrocarbon group, or the like. R5 is a hydrogen atom, a monovalent chain hydrocarbon group, or the like. R6 is a monovalent chain hydrocarbon group. R6 is bonded to R3 to form a first alicyclic structure, or R6 is bonded to R5 to form a second alicyclic structure. At least one hydrogen atom of R2, R3, or R4 is optionally substituted with a fluorine atom.
Owner:JSR CORPORATIOON
Two-stage type cavitation bubble generator
ActiveCN112023741AEffective protectionInhibition of ruptureFlow mixersTransportation and packagingJet flowEngineering
The invention discloses a two-section type cavitation bubble generator which comprises a first cavitation section and a second cavitation section, wherein the first cavitation section comprises a first jet chamber, a compression channel, a gas chamber and a mixing channel; The first jet chamber, the compression channel, the gas cavity and the mixing channel are sequentially communicated in the fluid flowing direction. The second cavitation section comprises a second jet chamber with an opening in one end, an outlet channel for outputting fluid and a center body; the open end of the second jetchamber is connected with the fluid output end of the first cavitation section, and the other end of the second jet chamber is communicated with the outlet channel; a low-pressure fluid inlet communicated with the second jet chamber is formed in the wall of the second jet chamber; the center body is arranged in the middle of the second jet chamber and fixedly connected with the second jet chamber,and a center body channel used for mixing fluid and gas is formed in the radial center of the center body. The cavitation bubble generator has high cavitation efficiency, the cavitation action rangeof a single generator is wide, the cavitation bubble generator can be effectively used for a high-sulfur slag dissociation process, the slag-sulfur separation effect is improved, and a good foundationis provided for subsequent flotation sulfur extraction.
Owner:CENT SOUTH UNIV
MOFs desulfurizer based on organic amine in-situ modification and preparation and application thereof
ActiveCN113083237AFacilitated DiffusionThe synthesis method is simple and convenientGas treatmentOther chemical processesCrystal structureActive site
The invention discloses an MOFs desulfurizer based on organic amine in-situ modification and a preparation method thereof. The preparation method comprises the following steps: preparing an MOF material Cu-BTC by using copper salt and trimesic acid as raw materials, adding small-molecule organic amine for in-situ modification, and preparing the organic amine in-situ modification MOFs desulfurizer A-Cu-BTC by using a solution diffusion method. The MOFs crystal structure is improved through in-situ preparation, the grain size of MOFs is reduced, and organic amine molecules are introduced to increase adsorption active site components, generate abundant stacked mesoporous apertures and increase the alkalinity of the material surface, so that the adsorption and dissociation performance on H2S is improved, and the sulfur capacity of the MOFs desulfurizer is effectively improved.
Owner:TAIYUAN UNIV OF TECH
Radiation-sensitive resin composition, polymer, compound, and method for producing compound
ActiveUS20140186771A1Improve dissociation abilityImprove performanceOrganic chemistryPhotosensitive materialsCompound aPolymer science
A radiation-sensitive resin composition includes a polymer that includes a structural unit represented by a formula (1), and an acid generator. R1 is a hydrogen atom, a fluorine atom, or the like. R2 is a hydrogen atom or a monovalent hydrocarbon group. R3 is a hydrogen atom, a monovalent chain hydrocarbon group, or the like. R4 is a hydrogen atom, a monovalent chain hydrocarbon group, or the like. R5 is a hydrogen atom, a monovalent chain hydrocarbon group, or the like. R6 is a monovalent chain hydrocarbon group. R6 is bonded to R3 to form a first alicyclic structure, or R6 is bonded to R5 to form a second alicyclic structure. At least one hydrogen atom of R2, R3, or R4 is optionally substituted with a fluorine atom.
Owner:JSR CORPORATIOON
Smart home lithium ion battery electrolyte and battery
ActiveCN106784994AGood compatibilityHigh viscosityCell electrodesSecondary cellsElectrical batteryInterface impedance
The invention discloses a long-term storage type lithium ion battery, wherein the negative electrode uses lithium titanate, an electrolyte comprises a conductive lithium salt, a carbonic ester solvent and a composite additive and is characterized in that the concentration of the conductive lithium salt is more than 2 mol / L, the carbonic ester solvent comprises cyclic carbonate, the volume content of the cyclic carbonate accounts for more than 70% the total volume of the carbonic ester solvent, the total content of the composite additive accounts for 5-10% of the volume percent of the carbonic ester solvent, the proportional relation of the volumes V of fluoro methylene methanedisulfonate, ethylene sulfate and fluoro dinitrile is that: the volume V of fluorine-containing lithium sulfimide plus the volume V of fluoro methylene methanedisulfonate is more than the volume V of ethylene sulfate plus the volume V of fluoro dinitrile. The battery is low in interface impedance under the condition of long-term storage, keeps high electric conductivity and long cycle life, and improves the long-term storage property of the battery.
Owner:江苏众富智能电气研究院有限公司
Pulping system for high-humidity-strength waste cardboard paper
PendingCN108316033ASolve the defibrillation problemIncrease profitPaper recyclingPulp beating/refining methodsHigh concentrationCardboard
The invention relates to a pulping system for high-humidity-strength waste cardboard paper. The pulping system comprises a continuous pulp shredder, a high-concentration slag separator, a first pressure screen, a classifying screen forebay, a classifying screen, a fiber tank, a post-treatment system and an independent pulp shredding system, the continuous pulp shredder, the high-concentration slagseparator, the first pressure screen, the classifying screen forebay, the classifying screen, the fiber tank and the post-treatment system are sequentially connected, and the independent pulp shredding system is used for shredding the high-humidity-strength waste cardboard paper and conveying the shredded pulp into the classifying screen forebay. The independent pulp shredding system is additionally arranged in the pulping system, solves the problem of difficulty in defibering the high-humidity-strength waste cardboard paper and improves pulping efficiency and pulping yield when the high-humidity-strength waste cardboard paper serves as raw materials to pulp, the utilization rate of the raw materials is increased, and production cost is saved.
Owner:NINE DRAGONS PAPER TAICANG LTD
Method for improving manganese leaching rate and manganese leaching process thereof
PendingCN119614906AImprove permeabilitypromote conversionProcess efficiency improvementManganesePyrrolidinones
The invention discloses a method for improving the manganese leaching rate and a manganese leaching process, and belongs to the technical field of manganese extraction.The method comprises the steps that after the water content of mineral aggregate is adjusted to be 10% or above, microwave pretreatment is conducted; adding an auxiliary agent polyvinylpyrrolidone into the mineral aggregate subjected to microwave treatment; mixing the mineral aggregate added with polyvinylpyrrolidone with water, carrying out wet grinding, and adding ultrasonic treatment in the wet grinding process to obtain ore pulp; concentrated sulfuric acid, water and the obtained ore pulp are mixed for sulfuric acid leaching treatment; and after the sulfuric acid leaching treatment reaction is completed, solid-liquid separation is carried out, and a leaching solution with the high manganese content is obtained. The method can improve the manganese leaching rate of the manganese ore.
Owner:GUANGXI NON FERROUS METALS GROUP HUIYUANMENGYE
Method for ultrasonic-enhanced extraction of multicoloured leaf extract by using ethanol and ethyl acetate cosolvent
PendingCN119638554Ahigh purityImprove extraction efficiencyHydrocarbonsAdsorption purification/separationCelluloseChloroplast
The invention relates to a method for ultrasonic-enhanced extraction of a multicoloured leaf extract by using an ethanol and ethyl acetate cosolvent, and belongs to the technical field of chemical engineering and plant extraction. (2) synergistically degrading cellulose by using multi-component glycosidase; (3) cosolvent extraction; 4, chloroplast pigment is efficiently separated and purified, chlorophyll and other impurities in an extracting solution are effectively separated and removed through silica gel column chromatography, and therefore the high purity of the multicoloured leaf extract is achieved; according to the invention, ethanol and ethyl acetate are used as cosolvents to extract the multicoloured leaf extract, so that the extraction efficiency and the purity of the extract can be improved.
Owner:TIANXIA PANLAN (HAINAN) BIOTECHNOLOGY CO LTD
Method for recovering and treating chromium-containing wastewater by using magnetic nanoparticles
PendingCN113087107AAchieve removalNo emissionsWater treatment parameter controlWater contaminantsChromium(III) hydroxideMagnetite Nanoparticles
The invention provides a method for recovering and treating chromium-containing wastewater by using magnetic nanoparticles, the method comprises the following steps: synthesizing magnetic Fe3O4 nanoparticles by using a special process, forming nanoclusters by combining the magnetic Fe3O4 nanoparticles with chromium hydroxide colloidal particles, and performing magnetic separation operation, thereby directly extracting chromium from the chromium-containing wastewater. Chromium in the chromium-containing wastewater is completely removed, the chromium-containing wastewater is changed into chromium-free wastewater, and no chromium-containing hazardous waste is discharged in subsequent chemical flocculation precipitation. Furthermore, chromic hydroxide in the magnetic Fe3O4 nanoparticle-chromic hydroxide colloid nanocluster combination is oxidized into water-soluble hexavalent chromium acid salt by adopting an oxidizing agent, and recycling of the magnetic nanoparticles and recycling of chromium resources are realized through magnetic separation or solid-liquid separation operation.
Owner:UNIV OF SCI & TECH BEIJING
Carbamate compound for non-aqueous electrolyte and application thereof
ActiveCN114605289AImprove electrochemical stabilityImprove conductivityOrganic chemistrySecondary cellsElectrolytic agentCarbamate
Owner:HUZHOU TEACHERS COLLEGE
Testing method for content of sulfate ions in sea sand
The invention discloses a testing method for the content of sulfate ions in sea sand. The testing method comprises the following steps: (1) taking the sea sand and sieving to obtain a sea sand sievedsubstance, i.e., a sea sand sample; (2) pre-treating the sea sand sample; (3) drawing a standard working curve; (4) carrying out ion chromatographic analysis and result calculation. According to the testing method disclosed by the invention, the sea sand sample is pre-treated by adopting ultrasound, vibration and centrifuging; the sulfate ions in the sea sand are sufficiently dissolved in a solvent through multi-effects of the ultrasound, the vibration and the centrifuging; operation steps are simple and rapid and the testing efficiency is high. The testing method takes inorganic acid as a solvent, so that the sulfate ions in the sea san are completely dissolved out; measurement errors are avoided and a testing result is real and reliable.
Owner:KZJ NEW MATERIALS GROUP CO LTD +1
Crosslinked Modified Polyethyleneimine Solid Electrolyte and Its Application
ActiveCN110071328BImprove securityImprove thermal stabilitySolid electrolytesHybrid capacitor electrolytesElectrical batteryCross linker
The invention discloses a cross-linked polymer solid state electrolyte, the raw materials of which include modified polyethyleneimine, cross-linking agent and lithium salt, and the modified polyethyleneimine, cross-linking agent and lithium salt are heated and cross-linked It forms an interpenetrating network material; it has higher thermal stability, ionic conductivity and electrochemical window, and can be widely used in electrochemical energy storage devices such as lithium-ion batteries, supercapacitors or solar cells.
Owner:GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
Composite electrocatalyst of molybdenum disulfide loaded platinum nanoparticles as well as preparation method and application of composite electrocatalyst
The invention belongs to the technical field of preparation of green hydrogen by electrolyzing water, and discloses a molybdenum disulfide loaded platinum nanoparticle composite electrocatalyst as well as a preparation method and application thereof. The preparation method comprises the following steps: dissolving ammonium molybdate, thiourea and polyvinylpyrrolidone in deionized water, and carrying out heat treatment to obtain MoS2; and adding a Na2 [PtCl6]. 6H2O aqueous solution into the dispersion liquid of MoS2, and carrying out annealing treatment to obtain the molybdenum disulfide loaded Pt particle composite electrocatalyst. Wherein the molybdenum disulfide nanosheets are of a vertical arrangement structure and have abundant edge sulfur sites, and the high-activity edge sulfur sites and Pt particles have a synergistic effect, so that the reaction potential barrier of water molecule dissociation is effectively reduced. Meanwhile, the generation rate of hydrogen is increased through the active sulfur sites. The overpotential of the material is only 35 mV under the current density of 10 mA cm <-2 >, and the material can stably operate for more than 110 h under the current density of 20 mA cm <-2 >. By combining metal active sites and high-activity non-metal sites, dissociation of water molecules and generation of hydrogen are promoted, and the hydrogen evolution reaction performance in an alkaline medium is remarkably improved.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY
Lithium-ion battery electrolyte and battery for smart home
ActiveCN106784994BGood compatibilityHigh viscosityCell electrodesSecondary cellsElectrolytic agentInterface impedance
The invention discloses a long-term storage type lithium ion battery, wherein the negative electrode uses lithium titanate, an electrolyte comprises a conductive lithium salt, a carbonic ester solvent and a composite additive and is characterized in that the concentration of the conductive lithium salt is more than 2 mol / L, the carbonic ester solvent comprises cyclic carbonate, the volume content of the cyclic carbonate accounts for more than 70% the total volume of the carbonic ester solvent, the total content of the composite additive accounts for 5-10% of the volume percent of the carbonic ester solvent, the proportional relation of the volumes V of fluoro methylene methanedisulfonate, ethylene sulfate and fluoro dinitrile is that: the volume V of fluorine-containing lithium sulfimide plus the volume V of fluoro methylene methanedisulfonate is more than the volume V of ethylene sulfate plus the volume V of fluoro dinitrile. The battery is low in interface impedance under the condition of long-term storage, keeps high electric conductivity and long cycle life, and improves the long-term storage property of the battery.
Owner:江苏众富智能电气研究院有限公司
A process for the preparation of 1,2-pentanediol
The application provides a preparation method of 1,2-pentanediol and belongs to the technical field of fine chemical synthesis. The 1,2-pentanediol is prepared by the following steps: furaldehyde, a solvent and a catalyst are loaded into a reaction kettle, nitrogen in the kettle is replaced by nitrogen gas, hydrogen in the kettle is replaced by hydrogen gas after the nitrogen replacement, and then the reaction is carried out by heating and hydrogen charging to obtain the 1,2-pentanediol; the catalyst uses hydrotalcite as a carrier, active components Ni and Cu are dispersed in the carrier, the loading amount of the active components is 5wt%-20wt%, the mass ratio of the Ni and the Cu is 1:2-3:1, and the specific surface area of the hydrotalcite carrier is 10-20m 2 / g. The method provided by the application is simple in process, high in yield, small in smell of prepared 1,2-pentanediol and suitable for daily chemical products.
Owner:HAIKE GRP RES INST OF INNOVATION & TECH
Cesium-ion-doped strontium-iron-based perovskite solid oxide electrolytic cell cathode material as well as preparation method and application of cesium-ion-doped strontium-iron-based perovskite solid oxide electrolytic cell cathode material
PendingCN119612596AImprove adsorption capacityImprove dissociation abilityIron compoundsElectrodesElectrical batteryOxygen ions
The invention relates to a novel Cs1 < + >-doped strontium-iron-based perovskite solid oxide electrolytic cell cathode material, and belongs to the field of solid oxide electrolytic cell cathode materials. Adsorption and dissociation of CO2 molecules on the surface of the cathode material during operation of the electrolytic tank are promoted through doping of Cs1 +. The doping of Cs1 < + > is also beneficial to the generation of oxygen vacancies in the strontium-iron-based perovskite and promotes the transmission rate of oxygen ions in a cathode bulk phase. And the electrolytic performance of the electrolytic tank is 2205 mA cm <-2 > and the electrode impedance is 0.18 ohm cm < 2 > at 850 DEG C and 1.6 V external voltage. The battery can stably operate for 100 hours at the temperature of 800 DEG C and under the impressed current of 600mA cm <-2 >.
Owner:NANJING TECH UNIV
Mud phosphor recovery and refining method
The invention discloses a new recycling and refining method of sludge phosphor, which comprises the following steps: placing sludge phosphor in the rotary phosphor distilling furnace to recycle phosphor; adding dispersant; transmitting rough phosphor into phosphor-fused groove; inputting steam in the phosphor-fusing groove to remove fluorine; transmitting phosphor into refined groove; aerating hot water; heating to bleach; transmitting phosphor into product groove to obtain the yellow phosphorus.
Owner:胡晓丽 +1
Atomic-scale auxiliary agent modified CuO composite mesocrystal catalyst and preparation method thereof
ActiveCN113559862AReduce structural complexityImprove adsorption capacityMetal/metal-oxides/metal-hydroxide catalystsHalogenated silanesPtru catalystPhysical chemistry
The invention discloses an atomic-scale auxiliary agent modified CuO composite mesocrystal catalyst, which comprises a main catalyst CuO mesocrystal and a monatomic auxiliary agent M1 or double monatomic auxiliary agents M1 and M2, the M1 and the M2 both exist in a monatomic dispersion state, the M1 is selected from any one of Zn, Zr, Ti, Mn, Fe, Co, Ni, Sn, In, Ce, Ru, Pd, Au, Pt and Rh, and the M2 is selected from any one of Ni, Au, Pt and Pd. The atomic-scale additive modified CuO composite mesocrystal catalyst has excellent catalytic performance, is used for hydrosilylation with silicon powder and HCl as raw materials, can realize selective regulation and control synthesis of trichlorosilane and silicon tetrachloride, reduces the reaction temperature and energy consumption, and improves the product yield and the silicon powder conversion rate.
Owner:BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY +2
Silicon or sulfur-containing film-forming resin and photoresist composition
ActiveCN113999340AImprove toughnessImprove adhesionPhotosensitive materials for photomechanical apparatusPolymer scienceImage resolution
The invention relates to silicon or sulfur-containing film-forming resin and a photoresist composition. Comonomers of the film-forming resin comprise an acrylate derivative and a butenoic acid ester derivative; the butenoic acid ester derivative is a silicon-containing butenoic acid ester derivative or a sulfur-containing butenoic acid ester derivative; the silicon-containing crotonate derivative has a structure as shown in a formula (1), and the sulfur-containing crotonate derivative has a structure as shown in a formula (2), wherein R11 is a cyclic group with 3-10 ring-forming atoms and at least contains one sulfur atom as the ring-forming atom. The film-forming resin has relatively good toughness and relatively good adhesive force to the substrate, and the photoresist obtained by adopting the film-forming resin has relatively high resolution.
Owner:江苏集萃光敏电子材料研究所有限公司
A crystallization auxiliary film for maldi target plate
ActiveCN109585256BExtended service lifeAvoid influence formationIon sources/gunsLiquid surfacesAnalytical chemistry
The invention relates to an MALDI target plate crystallization auxiliary film. The crystallization auxiliary film comprises a side wall hole array corresponding to the target plate array, a colloid layer for preventing liquid from leaking on the surface of the target plate and an anti-pollution release film. According to the invention, the crystallization auxiliary film is pasted on the surface ofthe MALDI target plate, and the side wall hole of the auxiliary film and the surface of the target point form a cylindrical micro-container. A conventional sample and a matrix are loaded into a micro-container, and under the action of surface tension of side walls on liquid, co-crystallization formed by the conventional sample and the matrix is better in the central position of a target point. Inthe process of MALDI batch point target analysis, the dissociation effect of laser analysis is remarkably improved, and meanwhile the sensitivity and repeatability of MALDI analysis can be improved to a certain extent.
Owner:FUDAN UNIV
Electrolyte solution and lithium ion battery
ActiveUS20190288341A1Improve dissociation abilityFacilitate dissociationSecondary cellsOrganic electrolytesPhysical chemistrySolvent
An electrolyte solution is used for a lithium ion battery. The electrolyte solution contains at least a solvent and lithium salt. The solvent contains at least methoxymethyl formate.
Owner:TOYOTA JIDOSHA KK
Medium-salt-concentration electrolyte for lithium-sulfur battery
PendingCN114824489AReduce usage ratioExtended working temperature rangeLi-accumulatorsOrganic electrolytesElectrolytic agentLithium metal
Owner:WUHAN UNIV
Method for preparing reduction-state black powder by using positive plate of retired lithium battery and application of reduction-state black powder
PendingCN121964574AImprove dissociation abilityextended processing timeCell electrodesWaste accumulators reclaimingElectrical batteryNitrogen gas
The invention discloses a method for preparing reduced black powder by using a positive plate of a decommissioned lithium battery and application, and belongs to the technical field of resource recycling of decommissioned power batteries. The method comprises the following steps: soaking the retired lithium battery in a sodium chloride solution for chemical discharge, disassembling the battery after the discharge is completed, and separating to obtain a positive plate; cutting the positive plate into flaky fragments, adding the flaky fragments and absolute ethyl alcohol into a closed reaction kettle, and synchronously applying ultrasonic action in a solvothermal reaction process under the protection of nitrogen; after the reaction is finished, washing and drying a solid product to obtain reduced black powder; and carrying out rotary evaporation on the reacted organic liquid phase to recover the ethanol solvent, wherein the recovered ethanol can be circularly used in the subsequent solvothermal reaction process. According to the method, the binder in the positive plate can be efficiently dissociated under the condition of lower temperature, the solvothermal reaction temperature is further reduced, the structural damage of a positive active material is avoided, and the method has the advantages of low energy consumption, small pollution, solvent recycling and the like.
Owner:ZHEJIANG UNIV OF TECH
Biosynthesis method of alpha-lipoic acid, engineering strain and preparation method thereof
PendingCN121950770AImprove dissociation abilityreduce usageFungiBacteriaEscherichia coliLipoic acid biosynthesis
The invention discloses a biosynthesis method of alpha-lipoic acid, an engineering strain and a preparation method of the engineering strain. The construction of the engineering strain comprises the following steps: transforming lipocaprylamide enzyme Lpa of enterococcus faecalis, constructing the lipocaprylamide enzyme Lpa to an arabinose promoter or a Cold temperature-sensitive promoter, and then replacing the lipocaprylamide enzyme Lpa to a LacZ gene and an lpxM gene of escherichia coli through RED recombination; or the genes of LipD, lplA, lipA and lpA which are subjected to gene code modification are expressed in the saccharomyces cerevisiae through a pESC vector. The engineering strain is cultured to biologically synthesize alpha-lipoic acid, so that the fermentation cost is further reduced, cyclic synthesis is realized, and the yield is greatly increased.
Owner:GUANGZHOU INSTITUTES OF BIOMEDICINE AND HEALTH CHINESE ACADEMY OF SCIENCES
Supercapacitor electrolyte with high charge-discharge cycle stability and supercapacitor
InactiveCN107564734AImprove electrochemical stabilityImprove ionic conductivityHybrid capacitor electrolytesHybrid/EDL manufactureOxalateN dimethylformamide
A supercapacitor electrolyte with high charge-discharge cycle stability comprises an electrolyte salt and a proton inertia organic solvent, wherein the electrolyte salt is tetramethylammonium bis(oxalate)borate and lithium tetrafluoroborate, and the proton inertia organic solvent is a mixture of propylene carbonate, gamma-butyrolactone, acetonitrile and N, N-dimethylformamide. With the adoption ofappropriate proton inertia organic solvent, the dissolving capacity and the dissociation capacity of the electrolyte salt in the supercapacitor electrolyte are improved, the ion conductivity of the electrolyte is improved, the internal resistance of an organic electrolyte is reduced, an electrochemical stable window of the electrolyte is expanded, so that the obtained electrolyte has favorable electrochemical stability, chemical stability and charge-discharge cycle stability.
Owner:WUJIANG JIA BILLION ELECTRONICS TECH
Electrolyte solution and lithium ion battery
ActiveUS10930976B2Improve dissociation abilityFacilitate dissociationSecondary cellsOrganic electrolytesPhysical chemistryLithium-ion battery
An electrolyte solution is used for a lithium ion battery. The electrolyte solution contains at least a solvent and lithium salt. The solvent contains at least methoxymethyl formate.
Owner:TOYOTA JIDOSHA KK