36 results about "Lithium perchlorate" patented technology

The present invention belongs to the field of lithium ion batteries, and specifically relates to an in-situ preparation method and a recovery method for a solid polymer electrolyte, as well as a lithium ion battery. The preparation method provided by the present invention comprises the following steps: a) loading an electrolyte precursor onto a surface of a battery separator, and then assembling same with a lithium ion battery positive electrode and a lithium ion battery negative electrode, to obtain a semi-finished lithium ion battery product, components of the electrolyte precursor in step a) comprising a polymer monomer, a lithium salt and an initiator, the lithium salt being lithium perchlorate, lithium hexafluorophosphate, lithium difluorophosphate, or the like; b) under heating conditions, performing in-situ polymerization of the electrolyte precursor on the battery separator in the semi-finished lithium ion battery product, to obtain a solid polymer electrolyte loaded on the battery separator. The preparation method provided by the present invention does not require an additional catalyst, and the prepared solid polymer electrolyte can be depolymerized by means of heating, and has good environmental and economic benefits.

The invention belongs to the technical field of optical glass. The invention relates to an electrochromic glass device, in particular to a preparation method of the electrochromic glass device. The preparation method comprises the following specific preparation steps: cleaning the surface of a glass substrate, and depositing an indium tin oxide transparent conductive layer on the surface of the glass substrate by adopting magnetron sputtering; the preparation method comprises the following steps: by taking nano spherical silicon dioxide as a template, dispersing the nano spherical silicon dioxide in an ethanol solution, then adding a sodium tungstate solution, then adjusting the pH value to 2-3, carrying out a stirring reaction, and then cleaning with a sodium hydroxide solution to remove the template so as to obtain a hollow spherical precursor dispersion liquid; coating the hollow spherical precursor dispersion liquid on the surface of the transparent conductive layer in a spin coating mode, drying and annealing; preparing a liquid electrolyte: taking propylene carbonate as a solvent, and taking lithium perchlorate as an electrolyte lithium salt; niO is deposited on the surface of the WO3 electrochromic layer to serve as a counter electrode through magnetron sputtering; epoxy resin is adopted to package the edge, after liquid electrolyte is injected, internal residual bubbles are removed through hot pressing, and the product is obtained.

The invention relates to an ammonium ion selective electrode, a preparation method thereof and application of the ammonium ion selective electrode in detection of ammonium ions in black and odorous water, and belongs to the field of electrochemical detection sensors. The method comprises the following steps: dispersing graphene oxide into water to obtain a dispersion liquid, and mixing the dispersion liquid with a Nafion solution to form a graphene oxide-Nafion mixed solution; coating on a substrate electrode, and drying to obtain a substrate electrode I; the substrate electrode I is placed in an electroplating solution for constant-current electrodeposition, and an ion selective electrode containing a solid contact layer is obtained; the electroplating solution contains 3, 4-ethylenedioxythiophene, a hydrophobic organic matter and lithium perchlorate; and dropwise adding an ammonium ion sensitive solution on the surface of the ion selective electrode containing the solid contact layer, and standing for 20-30 hours to obtain the ammonium ion selective electrode. The method is simple in preparation process, large-scale production can be achieved, the service life of the electrode is prolonged, the sensitivity of the electrode is improved, and meanwhile the stability of the electrode in fluid and the reliability of real-time monitoring are improved.

The invention discloses an electrolyte for a lithium battery, which comprises an organic solvent, a lithium salt and an additive, and the mass percentage ratio of the organic solvent to the lithium salt to the additive is (70-90): (5-20): (0.2-10); the organic solvent is composed of cyclic carbonate and chain carbonate in a mass ratio of (10-30): (70-90); the lithium salt is one or more of lithium hexafluorophosphate, lithium perchlorate and lithium tetrafluoroborate; the additives comprise a high-temperature stabilizer, an antioxidant and a film-forming accelerant, the cyclic carbonate is one or two of ethylene carbonate and propylene carbonate, and the chain carbonate is one or more of dimethyl carbonate, diethyl carbonate, ethyl methyl carbonate, dipropyl carbonate and methyl propyl carbonate. By optimizing the components of the electrolyte, the stability of the electrolyte at a high temperature is improved, and decomposition and side reactions are reduced, so that the performance of the battery in a high-temperature environment is improved, and the cycle life of the battery in a high-temperature environment is prolonged.

Certain aspects of the present disclosure may include a battery including a cathode including a fluorinated carbon material and manganese oxide, an anode including one or more of a lithium metal or a lithium alloy, and a non-aqueous electrolyte including: an organic solvent, one or more lithium salts including lithium perchlorate, and an additive material having lithium nitrate and tris-trimethyl silyl phosphite.

The application discloses an interface control liquid for prelithiation electrodes, a preparation method and application, and the interface control liquid comprises a solvent and a metal salt; the solvent comprises one or more of an ether solvent, an ester solvent, a ketone solvent, a hydrocarbon solvent, a nitrile solvent or deionized water; the metal salt comprises one or more of lithium hexafluorophosphate, lithium tetrafluoroborate, lithium hexafluoroarsenate, lithium bisoxalate borate, lithium bisfluorosulfonimide, lithium bistrifluoromethylsulfonimide, lithium perchlorate, lithium fluoride and lithium chloride; the concentration of the metal salt is 0.001 g / mL-10 g / mL; the prelithiation electrode is obtained by supplementing lithium to an electrode by a chemical prelithiation solution; the interface control liquid is used for modifying the prelithiation electrode, the metal salt of the interface control liquid reacts with the chemical prelithiation solution remaining on the surface of the prelithiation electrode, and a solid electrolyte layer containing inorganic lithium salt is generated on the surface of the prelithiation electrode; wherein, the content of the inorganic lithium salt is between 5% and 90%.

The present invention belongs to the technical field of optical glass. More specifically, it relates to a method for preparing an electrochromic glass device. The specific preparation steps of the present invention include: after cleaning the surface of the glass substrate, using magnetron sputtering to deposit a transparent conductive layer of indium tin oxide on the surface of the glass substrate; using nano-spherical silica as a template, dispersing it in an ethanol solution, then adding a sodium tungstate solution, then adjusting the pH to 2-3, stirring the reaction, and washing with a sodium hydroxide solution to remove the template to obtain a hollow spherical precursor dispersion; applying the hollow spherical precursor dispersion on the surface of the transparent conductive layer by spin coating, drying, and annealing; configuring the liquid electrolyte: using propylene carbonate as a solvent and lithium perchlorate as an electrolyte lithium salt; depositing NiO as a counter electrode on the surface of the WO3 electrochromic layer by magnetron sputtering; using epoxy resin to encapsulate the edge, injecting the liquid electrolyte, and then hot pressing to remove the residual bubbles inside to obtain the product.

The application relates to the technical field of batteries, in particular to an electrolyte suitable for primary lithium-manganese batteries and a preparation method thereof. The electrolyte comprises propylene carbonate, ethylene carbonate, lithium bisfluorosulfonylimide, lithium perchlorate, lithium bisoxalate borate, terminal bisdifluorophosphorylated oligomeric trimethylene carbonate, ethylene glycol dimethyl ether, lithium difluorooxalate borate and 1,3-propane sultone. The electrolyte is prepared through a pre-coordination and segmented dilution process with specific timing. The electrolyte system can synergistically optimize the electrode interface film forming process, has high discharge capacity retention rate and low direct current resistance at low temperature (-20 DEG C), and has high capacity retention rate after high-temperature storage (60 DEG C), thereby significantly improving the comprehensive performance of the primary lithium-manganese battery in a wide temperature range.

The present invention belongs to the technical field of organic synthesis, and in particular to a chromium oxide-lithium perchlorate composite catalyst and its preparation method and application in the preparation of bisphenol F. The chromium oxide-lithium perchlorate composite catalyst provided by the present invention has an affinity for the inorganic phase and the organic phase in the bisphenol F reaction system, can make phosphoric acid better contact with phenol and paraformaldehyde during the condensation reaction, reduce surface tension and surface free energy, thereby improving the yield of bisphenol F, in an acidic medium, the chromium oxide-lithium perchlorate composite catalyst combines the carbon cation of formaldehyde with phosphoric acid to generate a semi-phosphorus-based ketal, increases the steric effect, improves the selectivity of the condensation reaction, and thus the chromium oxide-lithium perchlorate composite catalyst has a stronger catalytic effect and better selectivity for the reaction process of preparing bisphenol F, can effectively reduce the content of by-products in the process of synthesizing bisphenol F resin, improve product yield and the proportion of 4,4'-dihydroxydiphenylmethane.

The invention relates to the technical field of energy storage, in particular to a gel electrolyte, and an electrochemical device and electronic equipment comprising the same, and the gel electrolyte is obtained by gelation reaction of a precursor solution comprising 1, 3-dioxolane, boron trifluoride diethyl etherate, lithium perchlorate and fluoroethylene carbonate. The gel electrolyte provided by the invention can realize a 5.4 V electrochemical stable window, and has high ionic conductivity and excellent cycle performance.

Certain aspects of the present disclosure may include a battery including a cathode including a fluorinated carbon material and manganese oxide, an anode including one or more of a lithium metal or a lithium alloy, and a non-aqueous electrolyte including: an organic solvent, one or more lithium salts including lithium perchlorate, and an additive material having lithium nitrate and tris-trimethyl silyl phosphite.

The present application relates to the technical field of gel electrolyte for supercapacitor, in particular to a gel electrolyte based on lysozyme amyloid fibers and application thereof. The ion conductivity of the conventional plant protein-based gel electrolyte is poor, and the electrical performance needs to be further improved. In view of the above problems, the present application provides a gel electrolyte based on lysozyme amyloid fibers. The lysozyme in the formula self-assembles into amyloid fibers under acidic conditions, and the surface of the amyloid fibers is rich in polar groups such as hydroxyl, carboxyl and amino groups, which can effectively promote the dissociation of lithium salt. At the same time, the three-dimensional network structure formed by the self-assembly of the fibers. Glycerol as a small molecule plasticizer inserts between the polymer chains. Lithium perchlorate and other lithium salts can provide high concentration of free lithium ions due to the large anion volume and low dissociation energy. The above components synergize and jointly act, effectively improving the comprehensive electrical performance of the gel electrolyte.

The invention relates to the technical field of electrochemical energy storage, in particular to a novel high-entropy electrolyte based on a deep eutectic solvent and application of the novel high-entropy electrolyte in electrochemical devices such as a low-temperature secondary battery and a supercapacitor. The deep-eutectic solvent high-entropy electrolyte is composed of at least five deep-eutectic solvents. The eutectic solvent is composed of a hydrogen bond acceptor and a hydrogen bond donor; the hydrogen bond acceptor is one of choline chloride, tetraethylammonium chloride, tetrabutylammonium chloride, zinc chloride, magnesium chloride, lithium perchlorate and water; the hydrogen bond donor is one of urea, citric acid, lactic acid, acrylic acid, itaconic acid, formic acid, ethylene glycol, glycerol, acetamide, formamide and water. According to the deep-eutectic solvent high-entropy electrolyte disclosed by the invention, the liquid-solid transformation temperature of the electrolyte is reduced, and relatively good low-temperature performance can be obtained; and the method has the advantages of low raw material cost and environmental protection.

The present invention belongs to the field of lithium-ion batteries, and particularly relates to an in-situ preparation method of a solid polymer electrolyte, its recycling method, and a lithium-ion battery. The preparation method provided by the present invention comprises the following steps: a) loading an electrolyte precursor onto the surface of a battery separator, and then assembling it with a lithium-ion battery positive electrode and a lithium-ion battery negative electrode to obtain a semi-finished lithium-ion battery; in step a), the components of the electrolyte precursor include a polymerizable monomer, a lithium salt, and an initiator, and the lithium salt is lithium perchlorate, lithium hexafluorophosphate, lithium difluorophosphate, etc.; b) under heating conditions, the electrolyte precursor in the semi-finished lithium-ion battery undergoes in-situ polymerization on the battery separator to obtain a solid polymer electrolyte loaded on the battery separator. The preparation method provided by the present invention does not require an external catalyst, and the obtained solid polymer electrolyte can be depolymerized by heating, having good environmental and economic benefits.

The application provides an electrically controlled radiation refrigeration-heating coating as well as a preparation method and application thereof, and relates to the technical field of thermal management materials.The electrically controlled radiation refrigeration-heating coating provided by the application comprises a gel electrolyte layer, and an electrochromic layer and a structural color layer which are combined on the two sides of the gel electrolyte layer; the electrochromic layer is a film layer formed by co-assembly of cellulose nanocrystals and a conductive polymer poly(3,4-ethylenedioxythiophene)-polystyrene sulfonic acid, the structural color layer is a film layer formed by self-assembly of cellulose nanocrystals, and the gel electrolyte layer is a gel layer formed by anhydrous lithium perchlorate, polymethyl methacrylate and propylene carbonate.The application combines the electrochromic technology and the radiation refrigeration, and reversibly switches the radiation refrigeration and the photo-thermal conversion effect of the coating by regulating the voltage, so that the purpose of cooling and heating of a building is achieved, and the application has a wide application prospect in the field of annual dynamic thermal management of the building.

The invention relates to the field of solid-state electrolyte, in particular to a solid-state electrolyte precursor, a solid-state electrolyte and a preparation method of the solid-state electrolyte precursor. The solid electrolyte precursor comprises a mixed solvent, a lithium salt, a mesoporous material, a first compound and a second compound, wherein the lithium salt is selected from lithium hexafluorophosphate, lithium perchlorate, lithium tetrafluoroborate and the like; the mixed solvent comprises a component a, a component b and a component c, wherein the component a is an alcohol or ether solvent; and the component b is one or more of compounds such as thionyl chloride, trimethyl sulfoxide bromide, sulfoxide bromide and the like. The solid electrolyte precursor prepared by the invention is stable and storable, and can be self-polymerized to form a frame-type three-dimensional structure material after the catalyst is added, and additional initiators and cross-linking agents are not needed.

The invention relates to the technical field of lithium battery positive electrode materials, in particular to a battery positive electrode multifunctional binder and a preparation method and application thereof. The multifunctional binder for the positive electrode of the battery comprises a lithium salt, 2-vinyl-1, 3-dioxolame and conductive carbon, the lithium salt is selected from one or more of lithium hexafluorophosphate, lithium perchlorate, lithium bis (trifluoromethylsulfonyl) imide, lithium bis (oxalato) borate, lithium difluoro (oxalato) borate and lithium bis (fluorosulfonyl) imide. The battery positive electrode multifunctional binder provided by the invention has good mechanical strength and bonding strength and excellent ion / electron conduction performance, a high-load positive electrode can be prepared based on the multifunctional binder, and a lithium battery assembled by the multifunctional binder can realize high energy density and stable circulation.

The present invention discloses a low-temperature electrolyte for lithium batteries, including an organic solvent, a lithium salt and an additive, wherein the mass percentage of the organic solvent, the lithium salt and the additive is 70-90:5-20:0.2-3; the organic solvent is composed of a cyclic carbonate, a chain carbonate and a chain carboxylate, and the mass percentage is: 10-20:10-30:10-80, the cyclic carbonate is one or both of ethylene carbonate and propylene carbonate, the chain carbonate is one or more of dimethyl carbonate, diethyl carbonate, ethyl methyl carbonate, dipropyl carbonate and methylpropyl carbonate, and the lithium salt is one or more of lithium hexafluorophosphate, lithium perchlorate and lithium tetrafluoroborate. Compared with the single administration of auxiliary additives, the present invention uses the above-mentioned ratio of amino-containing nicotinonitrile compound in combination with the auxiliary additive to significantly improve the low-temperature performance of the electrolyte.

The application discloses a multifunctional electrolyte for a lithium metal battery and application thereof, which comprises a lithium salt and an organic solvent, wherein the organic solvent is composed of tetrahydro-pyran, 1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropyl ether and 1,3-dioxolane in a volume ratio of (2.5-7):(2.5-7):(1-3); and the lithium salt is composed of lithium bis(fluorosulfonyl)imide and lithium perchlorate in a molar ratio of (0.5-4):(0.5-4). The electrolyte has the characteristics of ultralow melting point, low impedance, high temperature resistance, high pressure resistance and the like, significantly improves the performance of ether electrolyte, and is applied to the lithium metal battery, which widens the voltage window and working temperature range, solves the problem of low-temperature capacity attenuation, and enhances the high-temperature cycle stability.

A preparation method and application of an electrochemically prepared water electrolysis catalytic material based on boron-nitrogen-doped carbon nanofibers. First, lithium perchlorate, pyrrole, sodium carbonate / sodium bicarbonate buffer and deionized water are evenly mixed, and then an electrochemical reaction is carried out at a constant potential to grow nanofibers on a nickel foam electrode. The nanofibers are immersed in a boric acid solution, and then the boron-doped nanofibers are carbonized at high temperature to obtain boron-nitrogen-doped carbon nanofibers. Nickel sulfate and ferrous sulfate solutions are prepared, and then an electrochemical reaction is carried out to obtain a fiber core-shell catalyst. The fiber core-shell catalyst of the present invention has a core layer of boron-nitrogen-doped carbon nanofibers, which have the advantages of high electrochemical active area, high stability, high physical strength, low electrochemical impedance and super hydrophilicity, and a shell layer of nickel-iron layered double hydroxide, which has the characteristics of high catalytic activity. The coupling of the shell layer and the core layer not only gives the catalyst the above advantages, but also greatly enhances the intrinsic catalytic activity and stability of the shell nickel-iron.

The invention belongs to the technical field of supercapacitor electrode materials, and relates to an all-solid-state supercapacitor based on a CuCo2O4-PDMT composite electrode and a preparation method thereof.The preparation method comprises the steps that copper nitrate and cobalt nitrate serve as metal sources, and a CuCo2O4 bottom layer is prepared through constant-potential electro-deposition-muffle furnace annealing; 2, 5-dimethylthiophene (DMT) is used as a monomer, a PDMT top layer is prepared through cyclic voltammetry electropolymerization, and a CuCo2O4-PDMT composite electrode is formed; polyethylene glycol (PEG) is used as a gel matrix, lithium perchlorate (LiClO4) is used as an ion source, nano TiO2 is used as a reinforcing agent, and the composite gel electrolyte is prepared through'microwave dissolution-ultraviolet curing '. The composite electrode and the gel electrolyte are assembled into the all-solid-state symmetrical supercapacitor, so that the defects of high electrode electron transmission impedance, low gel electrolyte ion conductivity and insufficient cycling stability of the existing all-solid-state supercapacitor are overcome, and the collaborative construction of the composite electrode conductive network and the gel electrolyte ion channel is realized; and the performance limitation of traditional single component optimization is broken through.

The invention relates to the field of LED display screen industry, in particular to a thermochromic coating composition, a thermochromic coating, application of the thermochromic coating and a display screen input power adjusting method. The thermochromic coating composition provided by the invention comprises the following components in percentage by weight: 0.5-5.0% of nano carbon black; 20 wt% to 87 wt% of polyethylene oxide; 0.5 wt% to 15 wt% of lithium perchlorate; and 10 wt% to 70 wt% of polydimethylsiloxane. The coating formed by the thermochromic coating provided by the invention solves the problem that the light transmittance of a static adhesive film is non-adjustable, so that the light transmittance of the coating is improved (more than 90% in actual measurement) along with the rise of the temperature of a display screen during light emission, the temperature of the display screen is reduced when the screen is turned off, shading is gradually recovered (the light transmittance is less than 40%), and the light transmittance of the coating is not adjustable. The input power of the display screen is reduced on the premise that the brightness is not reduced while the light transmittance is increased, and the effects of cooling the display surface and saving energy are achieved.

The invention discloses an electrochromic device based on a three-electrode structure and a preparation method of the electrochromic device, and belongs to the technical field of electrochromic devices.The device comprises a polyaniline positive electrode, a tungsten oxide negative electrode, a zinc auxiliary electrode and an electrolyte, and the polyaniline positive electrode, the tungsten oxide negative electrode, the zinc auxiliary electrode and the electrolyte form a parallel-like capacitor structure; the zinc auxiliary electrode and the polyaniline positive electrode form an acceleration gate structure, and the electrolyte contains 1 mol L of lithium perchlorate and can be doped with 0.1-0.5 mol L of zinc perchlorate, so that Li < + > and Zn < 2 + > synergistically participate in ion implantation and extraction reaction. After optimization, the device can be reversibly switched to yellow, green, blue and purple from transparent under the voltage of 0.2-1.6 V, and the optical transmittance modulation amplitude reaches 88.1%; the capacitance reaches 14.67 mFcm < 2 > at the scanning rate of 10 mVs, which is more than 12 times that of a traditional dual-electrode device. The system is excellent in stability and expandability, and a brand new design thought is provided for application of intelligent windows, optical filters, optical switches, photon chips and the like.

This invention relates to the field of polymer materials technology, and particularly to a method for synthesizing a polystyrene-based single-ion conductor copolymer with a controllable side chain structure. The process steps include: (1) Synthesis of PEG macromonomer: First, through DCC / DMAP-catalyzed esterification, mPEG with terminal hydroxyl groups is reacted with 4-vinylbenzoic acid to prepare a polymerizable PEG macromonomer mPEG-4-vinylbenzoate; (2) Synthesis of anionic monomer: STFSIK monomer with polymerizable vinyl groups and strongly delocalized negatively charged anions is prepared; (3) Copolymerization reaction: A comb-like copolymer with both PEG side chains and potassium imine salt side chains is formed; (4) Ion exchange: The potassium-containing copolymer is reacted with lithium perchlorate to obtain the final target product. The synthesis route of this invention is clear. Through four well-defined chemical reactions, a complex single-ion conductor is synthesized. It is highly controllable and reproducible, and its performance is adjustable.

A method for preparing a composite photoelectrode for glucose content detection includes the following steps: adding potassium iodide and bismuth nitrate pentahydrate to a nitric acid solution, adding p-benzoquinone to ethanol, and mixing to obtain electrolyte A; depositing a BiOI thin film on FTO conductive glass using an electrochemical method; dripping a dimethyl sulfoxide solution of vanadium acetylacetonate onto the surface of the BiOI thin film, calcining it, immersing it in NaOH solution, rinsing it, and drying it to obtain a BVO photoelectrode; adding lithium perchlorate and terthiophene to acetonitrile to obtain electrolyte B, and performing photoelectrodeposition on the BVO photoelectrode using an electrochemical method to obtain the composite photoelectrode. The preparation method of this invention is simple and safe to operate, uses readily available materials, and can be mass-produced; the prepared composite photoelectrode, combined with photoelectric detection technology, can detect glucose content, exhibits high stability, simple steps, rapid response, and high sensitivity, providing a new analytical method for glucose content determination.

The application belongs to the technical field of lithium battery electrolyte resource recovery, and discloses a method for recovering lithium chloride resources in lithium perchlorate mother liquor. The method for recovering lithium chloride resources in lithium perchlorate mother liquor comprises the following steps: mixing and diluting lithium perchlorate mother liquor with water to obtain diluted lithium perchlorate mother liquor; then adding sodium carbonate solution for mixing and lithium precipitation to obtain lithium precipitation mother liquor and lithium carbonate dry material; concentrating the lithium precipitation mother liquor, then adding hydrochloric acid for reaction, and then cooling and precipitating sodium to obtain sodium chloride and perchloric acid mother liquor; the perchloric acid mother liquor is subjected to normal pressure distillation and vacuum distillation in sequence to obtain fractionated perchloric acid solution, and the remaining solution after the vacuum distillation is returned to be mixed with the lithium precipitation mother liquor. The method utilizes the solubility of lithium carbonate and the boiling point of perchloric acid to realize recovery of lithium chloride resources in lithium perchlorate mother liquor, wherein the recovery rate of lithium is greater than 90%, the recovery rate of perchlorate is greater than 76%, it is environmentally friendly, the initial investment is small, and the recovery cost is low.

The application discloses a liquid boron-containing double bond polysilane and a preparation method thereof. The method uses trihalosilane and 1,3-dihalogen propylene as mixed monomers, acetonitrile as a solvent, lithium perchlorate as an electrolyte, adopts a magnesium material as an electrode, and after reaching a set electric quantity under a direct current field with a set period of commutation, sodium cyanoborohydride is added to carry out a reduction reaction, so that the liquid boron-containing double bond polysilane is obtained. The acetonitrile solvent can greatly improve a reaction current and increase a reaction efficiency, and at the same time, boron atoms and double bonds are introduced onto the polysilane, and the method has a large-scale production potential. The boron-containing double bond polysilane synthesized by the method has a high ceramization yield, and can be used for preparing boron-containing silicon carbide ceramics.

Electrochemical cell in which lithium ions move back and forth, comprising: Electrode comprising a chalcogen-containing electroactive material, wherein the chalcogen-containing electroactive material comprises elemental selenium or a selenium-containing active material; and Electrolyte system, including: one or more lithium salts selected from the group consisting of: lithium bis(fluorosulfonyl)imide (LiN(FSO2)2), bis(trifluoromethane)sulfonimide lithium salt (LiN(CF3SO2)2), lithium hexafluorophosphate (LiPF6), lithium hexafluoroarsenate (LiAsF6), lithium tetrafluoroborate (LiBF4), lithium perchlorate (LiClO4), lithium iodide (LiI), lithium bromide (LiBr), lithium thiocyanate (LiSCN), lithium difluoro(oxalato)borate (LiBF2(C2O4)), LiPF3(C2F5)3, LiPF4(CF3)2, lithium tetrafluoro(oxalato)phosphate (LiPF4(C2O4)), LiPF3(CF3)3, LiSO3CF3 and combinations thereof, and one or more solvents selected from the group consisting of: cyclic carbonates, linear carbonates, aliphatic carboxylic esters, γ-lactones, chain structure ethers, cyclic ethers and combinations thereof, wherein the electrolyte system is essentially free of lithium nitrate (LiNO3) and the electrochemical cell has a minimum charge potential of more than or equal to about 0.8 V to less than or equal to about 1.8 V.

The present disclosure relates to the field of solid-state electrolyte, in particular to a solid-state electrolyte precursor, a solid-state electrolyte and a preparation method thereof. The solid-state electrolyte precursor comprises the following: a mixed solvent, a lithium salt, a mesoporous material, a first compound and a second compound; wherein the lithium salt is selected from lithium hexafluorophosphate, lithium perchlorate, lithium tetrafluoroborate and the like; the mixed solvent comprises the following components: a component a: an alcohol or ether solvent; a component b: one or more of the following compounds: thionyl chloride, trimethylsulfonium bromide, sulfuryl bromide and the like. The present disclosure prepares a solid-state electrolyte precursor which is stable and storage-resistant itself, and can form a framework type three-dimensional structure material after the addition of a catalyst without the need for additional initiators and crosslinking agents.

The application discloses an electric energy sensitive composite particle, a preparation method and application, the composite particle is a double-layer structure, the outer layer is a conductive polymer or metal nanoparticles, and has a response decomposition to electric energy; the inner core is a slow-burning flame retardant material, and can quickly suppress combustion after power failure. The preparation method comprises the following steps of material solution preparation, electrostatic spraying and post-processing steps, and the composite particle with a particle size of 200-400 mu m is obtained through drying and screening. When the composite particle is applied to electrically controlled solid propellant, sodium nitrate, sodium nitrate and lithium perchlorate are used as oxidants, epoxy resin is used as a binder, and the composite particle is added, and the prepared propellant can be quickly ignited (response time < 500 ms) under power-on, and can be quickly extinguished (extinguishing time < 350 ms) under power-off, so that the problems of traditional propellant dependence on mechanical devices and response delay are solved. The application has the advantages of simple process, low raw material cost, stable particle performance, and good industrialization prospect.