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32 results about "Electrolyte cation" patented technology

Method for preparing powder material with electrochemical cathode

ActiveCN103233246AA new and convenient method for preparing powder materialsAtomic clusterLithium-ion battery
The invention relates to the field of new materials, and discloses a method for preparing a powder material with an electrochemical cathode. By using an inert electrode as an anode, a massive metal, semiconductor and alloy as a cathode, and a lithium salt / sodium salt / quaternary ammonium salt organic solution, pyrrole, quaternary ammonium salt or piperidine ionic liquid or strongly alkaline water solution as an electrolyte, strong cathode polarization is carried out under constant voltage; under the action of the strong cathode voltage, the massive metal, semiconductor and alloy surface forms an unstable intermediate Mx+Ny- (M+ is an electrolyte cation, and N represents metal, semiconductor or alloy) and becomes corroded; the intermediate is very unstable in the electrolyte, and is quickly decomposed to generate an atomic cluster; the atomic cluster continues aggregate to obtain a nanoparticle sol; and finally, the sol is centrifuged / washed, and dried to obtain the powder material. The prepared powder material can be widely used in the fields of lithium ion batteries, supercapacitors, (electric) catalysis, biosensing, photovoltaic devices, micro-electronics and the like.
Owner:CENT SOUTH UNIV +1

Method of manufacture of an electrode for electrochemical devices

Deposition of a redox polymer of the poly-Me(R-Salen) type onto a conducting substrate by electrochemical polymerization is disclosed. Said polymerization occurs at a voltage applied between the substrate and a counter-electrode, both of which are submerged into the electrolyte. The electrolyte contains an organic solvent, compounds capable of dissolving in the solvent and forming electrochemically inactive ions at concentrations of no less than 0.01 mol / l within the range of potentials from −3.0 V to +1.5 V, and a metal complex poly-[Me(R-Salen)] dissolved at a concentration of no less than 5×10−5 mole / liter. Me is transition metal having at least two different degrees of oxidation, R is an electron-donating substituent, Salen is a residue of bis(salicylaldehyde)-ethylenediamine in Schiff' s base). Deposition of the redox occurs in the electrolyte where the cations of the compounds have a diameter larger than that of the electrolyte cations of energy storing device containing the electrode.
Owner:GEN3 PARTNERS INC

Chelating adsorbent for blood purification and preparation method for chelating adsorbent

The invention discloses a chelating adsorbent for blood purification and a preparation method for the chelating adsorbent. The adsorbent comprises a macromolecular carrier which is grafted with a copolymer of maleic anhydride and styrene, vinyl acetate or vinyl pyrrolidone. According to an adsorbing material, a charge transfer complex can be formed by virtue of maleic anhydride and vinyl monomers and is grafted with a copolymer of maleic anhydride, so that the grafting amount of maleic anhydride is improved to a great extent; after the adsorbing material is hydrolyzed, the hydrophilicity of the adsorbing material can be improved so as to improve the blood compatibility. The maleic anhydride obtained by hydrolysis can be chelated with heavy metal ions in blood to form a relatively stable seven-membered ring structure, so that the selective absorption capacity on the heavy metal ions is improved, and therefore, other electrolyte cations are not greatly influenced while the heavy metal ions are removed from blood.
Owner:佛山市博新生物科技有限公司

Substance surface property parametric measurement method

The invention provides a general method for measuring material surface property parameters. The method can measure the surface electric potential of different types of materials under different conditions accurately. The method comprises the following steps: performing saturation treatment on the material surface to be determined; mixing the saturated material which is subjected to the saturation treatment and is to be determined with an indicating electrolyte solution; measuring equilibrium concentration values of cations and hydrogen ions in indicating electrolyte of the body solution of the mixture; calculating the material surface electric potential according to the equilibrium concentration values of the cations in the indicating electrolyte; in a further technical proposal, calculating material specific surface area and surface charge density according to the material surface potential, calculating material surface electric field intensity according to the material surface charge density, and calculating total material surface charge amount according to the surface charge density and the specific surface area. The method is obtained in the relevant technology field for the first time, which can be applied widely for measuring the surface property parameters of materials with different charge types and under different conditions, and can realize combined measurement.
Owner:重庆为讯科学仪器有限责任公司

Solvent co-intercalated sodium ion capacitor

The invention provides a solvent co-intercalated sodium ion capacitor comprising an anode, a cathode, a sodium auxiliary electrode, an electrolyte, and a diaphragm between the anode and the cathode. The concentration of the electrolyte is between 0.5 and 3mol / L. A solvent is selected from one or more of a group including diethanol dimethyl ether, tetraethanol dimethyl ether, and tetrahydrofuran. The electrolyte positive ions in the electrolyte are sodium ions. The negative ions in electrolyte are hexafluorophosphate, tetrafluoroborate, triflate, and perchlorate. The diaphragm is biomass cellulosic material and has 10 to 100 micrometers of thickness, 30% to 95% of porosity, and 20 to 200 nanometers of average diameters. The solvent used in the electrolyte and the sodium ions can be co-intercalated into graphite-kind cathode material and a problem is effectively solved that sodium ions cannot be intercalated into the graphite-kind cathode material in a conventional esters solvent. The biomass cellulosic diaphragm material improves the ionic conductivity of the electrolyte so as to further improve the large-current charging and discharging capability of the sodium ion capacitor, and is low in cost. The sodium ion capacitor is simple in production process, high in specific energy, good in cyclic stability, and has good application prospect in the field of new energy.
Owner:QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI

Preparation method of efficient sodium-based solid decarburization adsorbent

The invention discloses a preparation method of an efficient sodium-based solid decarburization adsorbent. Pre-treatment including washing, roasting and grinding is conducted on a gamma aluminium oxide carrier; an incipient-wetness impregnation method is adopted, wherein the carrier is impregnated in dopant impregnation liquid with the electrolyte cation concentration of 0.1-2.0 mol / L for 6-8 hours, and then the carrier is subjected to drying, roasting and grinding for standby use; a modified carrier obtained in the last step is impregnated in an isovolumetric sodium carbonate solution with the concentration of 0.8-3.8 mol / L for 6-8 hours and subjected to drying, roasting and grinding for standby use; furthermore, a modified adsorbent is impregnated in another sodium-based amino secondaryactive component solution for 6-8 hours and subjected to drying, roasting and grinding, and finally, the target adsorbent is obtained. The adsorbent is mainly applied to thermal power plant tail smokecarbon dioxide purification, and the adsorption / desorption conditions are mild; meanwhile,the adsorbent has the advantages that the preparation method is simple, raw materials are cheap and easy to obtain, large-scale production is feasible, the adsorbent is stable in structure, all components are evenly dispersed, and the decarburization performance is efficient and stable and the like.
Owner:SOUTHEAST UNIV

Combined electrode material and purposes thereof

The invention discloses a combined electrode material and purposes thereof. The combined electrode material comprises a carbon-based active material and a solid electrolyte material. The solid electrolyte material comprises a matrix of conduction ions, and an ion compound used for providing electrolyte anions and electrolyte cations. The combined electrode material directly mixes the carbon-based active material with the solid electrolyte material and forms an ion conduction channel in an electrode, so that the process that an electrolyte penetrates the electrode to form the ion conduction channel of the electrode as usual is omitted, and the problem that the electrode thickness is small as penetration of the solid electrolyte material is difficult is solved.
Owner:TSINGHUA UNIV

Electrolyte and preparation method thereof and battery

The invention discloses an electrolyte, which comprises carboxylic ester and halogenated methane. The carboxylic ester can be combined with cations of the electrolyte, haloalkane has a small volume, arole of a lubricant can be played, ion migration resistance is reduced, and ionic conductivity of the electrolyte is thus improved. A potassium salt additive can change the solvation condition of thecations inside the electrolyte and an electrode interface film-forming reaction form, a thin and stable SEI film can be formed on the surface of a negative electrod, and the resistance of the ions embedded in the negative electrode can be reduced. An AgPF6 additive can perform reduction on the surface of the negative electrode to form nano-Ag particles, the SEI film charge transfer impedance is reduced, and the ion embedding / de-embedding resistance is reduced. Through combined actions of the carboxylic ester, the halogenated methane, the electrolyte and the additives, the discharge performance and the cycle performance of the battery below -40 DEG C can be improved, and the battery can perform discharge in a deep low temperature environment of -70 DEG C. The invention also provides an electrolyte preparation method and a battery containing the electrolyte.
Owner:中国电子新能源(武汉)研究院有限责任公司

Method and device for preventing air conditioner from corrosion, air conditioner, computer equipment and storage medium

The invention discloses a method for preventing an air conditioner from corrosion, and belongs to the technical field of corrosion prevention of air conditioners. The method includes the steps of installing a solar panel on the top of an outdoor unit shell, converting the output voltage of the solar panel into the negative voltage, connecting the bottom of a side plate on one side of the outdoor unit shell to a ground potential of the negative voltage, and connecting the position, away from the side plate, of a top cover of the outdoor unit shell to a negative electrode of the negative voltage. By means of the method, the negative voltage is exerted on the outdoor unit shell, the current flows through the outdoor unit shell, when cationic ionization oxidation is performed on a certain metal position of the outdoor unit shell through electrolyte cations in the environment, electrons can flow through a part, needing to be protected, of the outdoor unit shell and neutralize the part of the cations, and the outdoor unit shell is protected against oxidation corrosion. The invention further discloses a device for preventing the air conditioner from corrosion, the air conditioner, computer equipment and a storage medium.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD

Process for recovering terephthalic acid

In a process for recovering terephthalic acid from its salts solution an aqueous solution of a terephthalic acid salt is fed into a cathode compartment of an electro dialysis cell and an electrolyte to an anode compartment, the resulting salt and electrolyte solution is then subjected to electrolysis and terephthalic acid resulting from the reaction of terephthalic acid anions with the electrolyte cations in the anode compartment is withdrawn from the anode compartment and separated from the electrolyte by filtration.
Owner:USTAV CHEMCH PROCESU AV CR V V I

Secondary battery electrolyte, preparation method thereof, and battery

The present invention proposes a secondary battery electrolyte, a preparation method thereof and a battery, wherein the electrolyte includes a solvent, an electrolyte, and an additive, wherein the solvent includes carbonate, fluorinated ether, and chloroalkane; the additive includes nitrate and sulfur dioxide . The solvent and the additive of the present invention can play a synergistic effect and change the solvation structure of the electrolyte. On the one hand, it can improve the conductivity of the electrolyte and reduce the migration resistance of electrolyte cations, thereby reducing the polarization of the battery during fast charging and improving Fast charge capacity; on the other hand, it can inhibit solvent co-intercalation, thereby improving the fast charge cycle performance of the battery. The additive of the present invention can participate in the SEI film-forming reaction on the surface of the negative electrode during charging, making the SEI film more stable, thereby further improving the fast charging cycle performance of the battery. The technical problems of low fast-charging capacity, fast-charging cycle capacity attenuation, and short life of the battery are solved through the joint action of each component. The invention also provides a preparation method of the electrolyte and a battery containing the electrolyte.
Owner:中国电子新能源(武汉)研究院有限责任公司

Molybdenum disulfide nano-sheet material preparation method

The invention discloses a molybdenum disulfide nano-sheet material preparation method. According to the method, an electrochemical method is used, an inert transition metal is used as an electrode, anexternal circuit device regularly controls the directional reaction time of a cathode and an anode and the electrode conversion time interval, an electrolyte is used as a medium to prepare molybdenumdisulfide into a reaction slurry; and the molybdenum disulfide nano-sheet material is obtained through control of electrolyte cation repeated intercalation-de-intercalation reaction, centrifugation,drying and other post-treatment steps. According to the invention, most of the molybdenum disulfide nano-sheet materials prepared by the method are single-layer molybdenum disulfide two-dimensional materials, belong to direct band-gap nanometer materials, can be used as fluorescent materials, and can further be popularized and applied to the fields of luminescent devices, photoelectric conversion,energy storage, catalysis and the like; and the method is a nanometer material preparation method with characteristics of environmental protection, energy saving and easy intelligent control.
Owner:XIAMEN HONGLU TUNGSTEN MOLYBDENUM IND CO LTD

Vehicle-mounted hydrogen fuel cell electrolytic generation tank

InactiveCN104300166AGood for hydrolysis contact areaReduce medium resistivityFuel cell auxillariesElectrolysisHydrogen fuel cell
The invention discloses a vehicle-mounted hydrogen fuel cell electrolytic generation tank comprising an anode titanium polar plate, an ion exchange membrane and a cathode titanium polar plate, which are sequentially overlapped in a tank body arranged in a sealed mode, wherein sealed and insulated silica gel separated superfine sealing cavities are formed among the anode titanium polar plate, the cathode titanium polar plate and the ion exchange membrane; the vehicle-mounted hydrogen fuel cell electrolytic generation tank is characterized in that the anode titanium polar plate, the ion exchange membrane and the cathode titanium polar plate are tightly compacted together by pressing of a pressing plate; a water pipe is communicated with the ion exchange membrane; and an oxygen pipe and a hydrogen pipe are communicated with the cathode titanium polar plate and the anode titanium polar plate in a penetrated mode, respectively. According to the electrolytic generation tank disclosed by the invention, a porous cracked solid polymer electrolyte cation exchange membrane of a microstructure is utilized to serve as a medium between an anode electrode plate and a cathode electrode plate, and increase of the electrolyte hydrolysis contact area and the hydrolysis process can be facilitated. Meanwhile, the electrolytic tank is arranged in a way of pressing the electrode plate and the ion exchange membrane by adopting the pressing plate, so that the dielectric resistivity can be reduced, and the heating value of the tank body is reduced.
Owner:SUZHOU UNIV

Method and device for protecting outdoor unit bottom plate of air conditioner, air conditioner, computer equipment and storage medium

The invention discloses a method for protecting an outdoor unit bottom plate of an air conditioner, and belongs to the technical field of air conditioner corrosion prevention. The method comprises thefollowing steps that one side of the outdoor unit bottom plate is connected to a ground potential, the other side of the outdoor unit bottom plate is connected to a negative electrode, and a negativevoltage is applied to the outdoor unit bottom plate. By adopting the embodiment, the negative voltage is applied to the outdoor unit bottom plate, current flows through the outdoor unit bottom plate,and when electrolyte cations in the environment carry out cation ionization oxidizing on a certain metal on the outdoor unit bottom plate, electrons can flow to the part where the outdoor unit bottomplate needs to be protected and neutralize the part of the cations, so that the outdoor unit bottom plate is protected from being corroded, and the service life of the air conditioner is prolonged. The invention further discloses a device for protecting the outdoor unit bottom plate of the air conditioner, the air conditioner, computer equipment and a storage medium.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD

A Solvent Co-embedded Sodium Ion Capacitor

The invention provides a solvent co-intercalated sodium ion capacitor comprising an anode, a cathode, a sodium auxiliary electrode, an electrolyte, and a diaphragm between the anode and the cathode. The concentration of the electrolyte is between 0.5 and 3mol / L. A solvent is selected from one or more of a group including diethanol dimethyl ether, tetraethanol dimethyl ether, and tetrahydrofuran. The electrolyte positive ions in the electrolyte are sodium ions. The negative ions in electrolyte are hexafluorophosphate, tetrafluoroborate, triflate, and perchlorate. The diaphragm is biomass cellulosic material and has 10 to 100 micrometers of thickness, 30% to 95% of porosity, and 20 to 200 nanometers of average diameters. The solvent used in the electrolyte and the sodium ions can be co-intercalated into graphite-kind cathode material and a problem is effectively solved that sodium ions cannot be intercalated into the graphite-kind cathode material in a conventional esters solvent. The biomass cellulosic diaphragm material improves the ionic conductivity of the electrolyte so as to further improve the large-current charging and discharging capability of the sodium ion capacitor, and is low in cost. The sodium ion capacitor is simple in production process, high in specific energy, good in cyclic stability, and has good application prospect in the field of new energy.
Owner:QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI

Ion and electron composite conduction electrode and in-situ preparation method thereof

The invention relates to an ion and electron composite conduction electrode and an in-situ preparation method thereof, and the method comprises the steps: adding an additive precursor A and an active substance B into a mixing device, mixing for a set time length, and stirring the mixture of the additive precursor A and the active substance B in the mixing device by a stirring device while mixing, the additive precursor A and the active substance B are subjected to in-situ ion exchange in the stirring process, so that a product with electrolyte cation conductivity can be generated and is uniformly dispersed. The preparation method has the beneficial effects that a three-dimensional conductive network constructed by zero-dimensional / one-dimensional / two-dimensional structural units is designed in a targeted manner through composite use of electronic conductive materials with different microtopographies. The material is low in cost, the method is simple and convenient, large-scale expanded production is easy, and the method is particularly suitable for electrode preparation of water-based ion batteries and water-based supercapacitors.
Owner:浙江浙能中科储能科技有限公司 +1

Alkaline electrolyte regeneration

Methods and systems for electrolyte regeneration are provided, which regenerate a spent alkaline electrolyte (SE) comprising dissolved aluminum hydrates from an aluminum-air battery, by electrolysis, to precipitate aluminum tri-hydroxide (ATH) and form regenerated alkaline electrolyte, and adding a same-cation salt to an anolyte used in the electrolysis to supplant a corresponding electrolyte cation. The regeneration may be carried out continuously and further comprise mixing the SE and the same-cation salt in a salt tank configured to deliver the anolyte, removing the regenerated alkaline electrolyte from a catholyte tank configured to deliver the catholyte, and filtering the ATH from a solution delivered from the salt tank to the anolyte. Optionally, the salt may be a buffering salt, and in some cases chemical reactions may be used to enhance the regeneration by electrolysis.
Owner:PHINERGY

Method and device for protecting air conditioner outdoor unit shell, air conditioner, computer equipment and storage medium

The invention discloses a method for protecting an air conditioner outdoor unit shell, and belongs to the technical field of air conditioner corrosion protection. The method comprises the steps that the position at the bottom of a side plate at one side of the outdoor unit shell is connected to an earth potential, the position, away from the side plate, on a top cover of the outdoor unit shell isconnected to a negative electrode, and negative voltage is applied to the outdoor unit shell. By adopting the embodiment, negative voltage is applied to the outdoor unit shell, current flows through the outdoor unit shell, when the positive ion ionization oxidation process is performed by electrolyte positive ions in the environment on metal at a certain position on the outdoor unit shell, electrons can flow to the portion, needing to be protected, of the outdoor unit shell and neutralize some positive ions, the outdoor unit shell is protected against oxidation or corrosion, and the service life of an air conditioner is prolonged. The invention further discloses a device for protecting the air conditioner outdoor unit shell, the air conditioner, computer equipment and a storage medium.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD

Secondary battery electrolyte, preparation method thereof and battery

The invention provides a secondary battery electrolyte, a preparation method thereof and a battery, the electrolyte comprises a solvent, an electrolyte and an additive, the solvent comprises carbonic ester, fluoro-ether and chloralkane; the additive includes a nitrates and sulfur dioxide. The solvent and the additive can play a synergistic role and change the solvation structure of the electrolyte, on one hand, the conductivity of the electrolyte can be improved, and the cation migration resistance of the electrolyte is reduced, so that the polarization of the battery during quick charging is reduced, and the quick charging capacity is improved; on the other hand, solvent co-intercalation can be inhibited, so that the quick charge cycle performance of the battery is improved. The additive disclosed by the invention can participate in SEI film forming reaction on the surface of a negative electrode during charging, so that an SEI film is more stable, and the quick charging cycle performance of the battery is further improved. Through the combined action of the components, the technical problems of low quick charge capacity, quick attenuation of quick charge cycle capacity and short service life of the battery are solved. The invention also provides a preparation method of the electrolyte and the battery containing the electrolyte.
Owner:中国电子新能源(武汉)研究院有限责任公司

Method for improving ion intercalation/deintercalation rate in energy storage layered material

The invention discloses a method for improving the ion intercalation / deintercalation rate in an energy storage layered material, which comprises the following steps of preparing a layered positive electrode material, putting the layered positive electrode material into different electrolyte systems, and analyzing lattice information after ion intercalation of the layered positive electrode material and ion diffusion states under different conditions by using an electrochemical detection and theoretical calculation mode, acquiring the relationship between the difference between the interlayer spacing of the layered positive electrode material and the electrolyte cation size and the ion intercalation / deintercalation rate, and improving the ion intercalation / deintercalation rate of the energy storage layered material by regulating and controlling the difference, so that a high-rate positive electrode material system is obtained. By means of the mode, key factors influencing the ion intercalation / deintercalation rate can be obtained, so that the method for improving the ion intercalation / deintercalation rate in the energy storage layered material with universality and guiding significance is obtained, guidance of experimental design to obtain a high-rate battery system is facilitated, development of a power battery system is promoted, and the method has important social and economic significance.
Owner:HUAZHONG UNIV OF SCI & TECH

Method for preparing soft water by electro-deionization and device thereby

The present invention relates to a desalting-softening water-purifying method combining electrodialysis with ion exchange organically and its equipment. It is characterized by that this method and equipment only consume electric energy without use of edible salt, and when it is used under the normal condition, said water-softening device can be continuously operated, without need of regeneration, and in the special case of needing regeneration, it can use H (+) ions produced from water electroionization to conveniently make regeneration. As compared with existent technology, it is simple in operation, convenient in use, low in operation cost and easy to implement automation, etc..
Owner:王明亚

Substance surface property parametric measurement method

The invention provides a general method for measuring material surface property parameters. The method can measure the surface electric potential of different types of materials under different conditions accurately. The method comprises the following steps: performing saturation treatment on the material surface to be determined; mixing the saturated material which is subjected to the saturationtreatment and is to be determined with an indicating electrolyte solution; measuring equilibrium concentration values of cations and hydrogen ions in indicating electrolyte of the body solution of the mixture; calculating the material surface electric potential according to the equilibrium concentration values of the cations in the indicating electrolyte; in a further technical proposal, calculating material specific surface area and surface charge density according to the material surface potential, calculating material surface electric field intensity according to the material surface charge density, and calculating total material surface charge amount according to the surface charge density and the specific surface area. The method is obtained in the relevant technology field for the first time, which can be applied widely for measuring the surface property parameters of materials with different charge types and under different conditions, and can realize combined measurement.
Owner:重庆为讯科学仪器有限责任公司

Method and device for protecting indoor heat exchanger pipeline of air conditioner, air conditioner, computer device and storage medium

The invention discloses a method for protecting an indoor heat exchanger pipeline of an air conditioner. The method comprises the following steps of connecting a liquid inlet pipeline and a liquid outlet pipeline of the indoor heat exchanger to a ground potential, connecting a right metal tube plate of the indoor heat exchanger to a negative electrode, and applying a negative voltage to the indoorheat exchanger pipeline. By adopting the embodiment, the negative voltage is applied to the indoor heat exchanger pipeline, and a current flows through the indoor heat exchanger pipeline; and when electrolyte cations in the environment carry out cation ionization oxidation on the metal on a certain part of the indoor heat exchanger pipeline, electrons flow to the part, needing to be protected, ofthe indoor heat exchanger pipeline and neutralize the cations at the part, the indoor heat exchanger pipeline is protected against corrosion by oxidation, and the service life of the air conditioneris prolonged. The invention further discloses the device for protecting the indoor heat exchanger pipeline of the air conditioner, the air conditioner, the computer device and the storage medium.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD

Method and device used for protecting outdoor heat exchanger of air conditioner, air conditioner, computer equipment and storage medium

The invention discloses a method used for protecting an outdoor heat exchanger of an air conditioner, and belongs to the technical field of air conditioner corrosion prevention. The method comprises the following steps: connecting one side of the outdoor heat exchanger to a ground potential, connecting the other side of the outdoor heat exchanger to a negative electrode, and applying negative voltage to the outdoor heat exchanger. With the adoption of the embodiment of the invention, negative voltage is applied to the outdoor heat exchanger, and current flows through the outdoor heat exchanger, so that in a process that electrolyte positive ions in an environment perform a positive ion ionization oxidization process on metal at certain position of the outdoor exchanger, electrons flow to ato-be-protected part of the outdoor heat exchanger to neutralize part of the positive ions for protecting the outdoor heat exchanger from being oxidized and rusted, and therefore, the service life ofthe air conditioner is prolonged. The invention further discloses a device used for protecting the outdoor heat exchanger of the air conditioner, the air conditioner, computer equipment and a storagemedium.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD

Electrolyte and its preparation method and battery

The present invention provides an electrolytic solution comprising carboxylate and methyl halide. Carboxylate can be combined with the cation of the electrolyte, and halogenated alkanes are small in size and can act as lubricants to reduce ion migration resistance, thereby improving the ionic conductivity of the electrolyte; potassium salt additives can change the internal electrolyte of the electrolyte The solvation status of cations and the film-forming reaction form at the electrode interface enable the formation of a thin and stable SEI film on the surface of the negative electrode, reducing the resistance of ions intercalating into the negative electrode; AgPF 6 The additive can be reduced to form nano-Ag particles on the surface of the negative electrode, which reduces the charge transfer resistance of the SEI film and reduces the ion intercalation / deintercalation resistance; through the joint action of carboxylate, methyl halide, electrolyte and additives, the battery is improved in- The discharge performance and cycle performance below 40°C can still be discharged in a deep low temperature environment of -70°C. The invention also provides a preparation method of the electrolytic solution and a battery containing the electrolytic solution.
Owner:中国电子新能源(武汉)研究院有限责任公司
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