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71 results about "Molecular motion" patented technology

Molecular motion is the movement of molecules inside a substance without any external influence. This means it is the movement of particles inside a substance here and there randomly. This movement occurs only inside the boundary of the substance. These movements cause molecular collisions, in which molecules colloid with each other.

Preparation method of lithium ion battery anode slurry

ActiveCN102368544AVigorous Molecular MovementImprove consistencyCell electrodesSodium-ion batterySlurry
The invention provides a preparation method of lithium ion battery anode slurry with which effective control can be taken upon the consistency of a lithium ion battery in a micro perspective. The lithium ion battery anode slurry is prepared from mixed materials of a solvent, polyvinylidene difluoride, a conductive agent, and a lithium iron phosphate anode material. The preparation method comprises steps that: the solvent, polyvinylidene difluoride, the conductive agent, and the lithium iron phosphate anode material are well mixed under a temperature environment of 65 to 70 DEG C, such that the lithium ion battery anode slurry is prepared. According to the invention, during the whole slurry preparation procedure, the whole slurry system is maintained to be in a constant high temperature; with a method wherein the raw materials and the solvent are added to the slurry system in batches, the viscosity of the slurry system is controlled within a certain range; before a bonding agent is added, all solid powders are premixed by using the solvent, such that the components of the slurry are subject to more severe molecular motions under a temperature higher than that of a common slurry mixing technology. Therefore, electrode slurry with a better consistency in the micro perspective is obtained.
Owner:奇瑞新能源汽车股份有限公司

Charging management method and charger for lithium ion battery pack

The invention discloses a charging management method and a charger for a lithium ion battery pack, relating to application of the lithium ion battery pack on power equipment. In order to solve the defects of the security, the cycle life and the low temperature charging capacity of the lithium ion battery pack in the prior art, the invention provides the charging management method for the lithium ion battery pack. In the method, the lithium ion battery pack is charged in the manner of periodicity, i.e. each period consists of a charging phase and a standing phase. For the noncontinuous charging method, the concentration polarization and the electrochemical polarization are great in charging, but the concentration polarization and the electrochemical polarization are balanced very quickly due to molecular motion when power is cut off, therefore, the polarization of the battery can be reduced or eliminated, the security of the battery pack is greatly improved, the cycle life is prolongedand the low temperature charging capacity is enhanced. The charging method can be applied to the lithium ion battery pack of electric equipment, such as an electric bicycle, an electric automobile, an electric ship, an electric plane, a submarine, a torpedo, and the like.
Owner:BEIJING ELECTRIC VEHICLE

Polysilicon ingot casting device and ingot casting method

The invention discloses a polysilicon ingot casting device and ingot casting method. The ingot casting device disclosed by the invention comprises a crucible containing a silicon material. The ingot casting device is characterized by also comprising a gas delivery pipe and a power unit, wherein the gas delivery pipe is used for delivering argon gas to silicon liquid obtained by melting the silicon material; the power unit is used for driving the gas outlet end of the gas delivery pipe to charge and discharge the silicon liquid; the gas inlet end of the gas delivery pipe is arranged outside the crucible; and the power output end of the power unit is fixedly connected with the gas outlet end of the gas delivery pipe. The argon gas introduced into the silicon liquid can accelerate the separation of impurities in the silicon liquid from the silicon liquid, so that the impurities contained in the silicon material are quickly separated from the silicon liquid in the molecular motion process and reach to the silicon liquid surface to be volatilized so as to carry the impurities in the silicon liquid away, thereby increasing the impurity volatilization amount, reducing the impurity content in the silicon ingot, and enhancing the quality of the silicon ingot. Meanwhile, the delivery of the argon gas into the silicon liquid is carried out after melting the silicon material into the silicon liquid, and is finished before the silicon liquid crystal growth process; and the process can not prolong the existing ingot casting time or influence the existing ingot casting procedure, and thus, is convenient to implement.
Owner:TIANJIN YINGLI NEW ENERGY RESOURCES

Continuous drop emitter with reduced stimulation crosstalk

A continuous drop emitter comprising a liquid supply chamber containing a liquid held at a positive pressure; first and second nozzles in fluid communication with the liquid supply chamber nozzles emitting first and second continuous streams of a liquid; first and second stream break-up transducers adapted to independently synchronize the break up of the first and second continuous streams of the liquid into first and second streams of drops of predetermined volumes, respectively; and an acoustic damping material located adjacent to or within the liquid supply chamber for damping sound waves generated within the liquid chamber by the first and second stream break-up transducer. The continuous drop emitter may also configured with a Helmholtz resonant chamber tuned to a critical stimulation frequency having an acoustic damping material therein for absorbing acoustic stimulation energy. The Helmholtz resonant chamber may serve as a portion of the common liquid supply for the first and second jets in which case the acoustic damping material may be porous to allow the liquid to pass through. The acoustic damping materials may acoustically lossy materials that transmute energy into heat via molecular motions. The acoustic damping materials may be porous materials that absorb acoustic energy by forcing the liquid through small passages causing viscous flow energy losses. In addition the acoustic damping materials may include components that cause the disruption of acoustic waves by reflection from materials that are impedance mismatched to the liquid, either very dense materials or gas filled voids.
Owner:EASTMAN KODAK CO

Preparation method of barium titanate-based ceramic powder

The invention relates to a preparation method of barium titanate-based ceramic powder, and belongs to the technical field of piezoelectric ceramics. According to the preparation method, barium titanate tetragonal nano-powder is prepared by a microwave assisted oxalic acid precipitation method, and energy is transferred directly to a reaction system through microwave energy and internal heating generated by intermolecular interaction, so that intense molecular motion and friction are caused, and heat is produced. By means of heating through microwave absorption of substances, the reaction rateis increased, and the reaction activation energy is reduced. Meanwhile, the solution energy heating rate is increased, the influence of a heating process is lowered effectively, the whole sample quickly reaches a set temperature, the phenomenon of wider size distribution of synthetic powder caused by the factors of non-uniformity, low speed and the like in traditional heating is improved, and theprepared barium titanate nano-powder is high in crystallinity and purity, uniform in distribution and 30 to 50nm in grain size. By adopting the barium titanate-based ceramic powder, grain growth can be effectively inhibited, the ceramic density and ceramic impedance are increased, loss is reduced, and the breakdown field strength of ceramic materials is enhanced.
Owner:李巧珍

Production equipment and preparation method of rare earth oxides

The invention relates to the technical field of materials, and particularly relates to production equipment and a preparation method of rare earth oxides. The production equipment of rare earth oxidescomprises a reactor, a microwave heating device, a gas carrying tank and a liquid storage tank, wherein the microwave heating device is nested outside of the reactor; the reactor comprises a gas inlet section, a contraction section, a throat section and a gas outlet section connected in sequence; the gas of the gas carrying tank comprises oxygen; the gas carrying tank is communicated with the gasinlet section so that the gas can enter the reactor and flow in a length direction of the reactor; the liquid storage tank is communicated with the throat section so that a rare earth chloride solution enters the reactor, flows to the gas outlet section and reacts with the oxygen to generate rare earth oxides and hydrogen chloride. The production equipment solves technical problems that the existing preparation equipment is unevenly heated to result in excess local temperature, and molecular motion of an outer heated region is active to easily form aggregation of products from the outside tothe inside so that the products are easily agglomerated to result in uneven particle size and different shapes.
Owner:东北大学秦皇岛分校

Pigment mixing equipment for sound wave heating resonance anti-adhesion printing packaging

The invention discloses pigment mixing equipment for sound wave heating resonance anti-adhesion printing packaging. Th equipment structurally comprises a base, a controller, a motor, a connector, a rotation rod and a stirring device. Under the effect of a current generation device and an electric heating wire, an arch movement block moves upwards to extrude a dielectric substance to form current,the current is introduced into the electric heating wire through a wire for heating a shell, the water contact solubility of the external phase of the shell is improved, the molecular motion of pigment attached to the shell is improved, and accordingly the pigment can be better cleaned; under the effect of a sound wave resonance device, sound waves generated by impact of the shell and the water flow are collected through reflection of a sound returning plate, a vibration insulation film vibrates and collides a vibration tuning fork, the vibration tuning fork gives out sound waves so that a resonance tuning fork can be subjected to resonance, a resonance plate is subjected to resonance, the shell is driven to vibrate to form bubbles, impact waves are generated when the bubbles are closed, and the aim of cleaning and purifying the shell is achieved.
Owner:赣州惠彩印刷有限公司

A kind of reaction kettle with net cover type stirrer

The invention discloses a reaction kettle of a grill type stirrer, relates to the technical field of production of high-density trimanganese tetraoxide precursor high-purity manganese carbonate, in particular to a high-purity manganese carbonate precursor used for producing high-density trimanganese tetraoxide precursor The reaction kettle of the net cover type agitator adopts blade type agitation for the prior art. During the agitation process, the moving track distance of the agitated raw materials is short, and the intermingling is uneven, which directly affects the reaction rate, resulting in manganese carbonate generated during the reaction process. The number of crystal nuclei is small, the crystal nuclei are small, and the technical problems of low reaction efficiency. Using a unique multi-layer grille stirrer combined with a coil heater can make the raw material of high-purity manganese carbonate being stirred move axially and radially. , Accelerate the speed of molecular movement and increase the probability of collision, thus completely solving the problem of small number and small crystal nuclei of manganese carbonate produced in the internal reaction process of the traditional reactor, and improving the reaction efficiency.
Owner:DAXIN MANGANESE MINE BRANCH OF CITIC DAMENG MINING IND

Air inlet front edge shock wave aerodynamic heat simulation analysis method

The air inlet channel leading edge shock wave aerodynamic heat simulation analysis method comprises the steps: S1, enabling simulation molecules to carry out constant-speed linear motion with the duration being delta tm at the current speed and in the current direction; s2, simulating the action with the boundary in the molecular motion process, and adopting different processing methods for different boundaries; s3, sorting the simulation molecules according to the grid serial numbers; s4, sampling the molecular collision pairs; s5, determining molecular energy distribution before collision, determining a molecular energy relaxation process during collision, and determining redistribution of internal energy after molecular collision according to the intramolecular energy transfer model; s6, simulating a chemical reaction of the sampled molecular collision pairs to obtain thermodynamic state parameters of each molecular collision pair; s7, repeating the steps S1-S6, judging whether thesimulation time reaches the sampling time or not after N time steps, if so, entering S8, and otherwise, repeating the steps S1-S7; and S8, performing statistical calculation on the simulation molecules in each grid unit to obtain a temperature field of the shock waves at the front edge of the air inlet channel.
Owner:上海索辰信息科技股份有限公司

Processing method for improving performance of 3D printed polymer material component

The invention discloses a processing method for improving performance of a 3D printed polymer material component. The processing method comprises the steps of carrying out a primary cryogenic treatment on the 3D printed polymer material component; cooling naturally after the primary cryogenic treatment is finished; carrying out secondary cryogenic treatment after natural cooling; and continuously carrying out annealing treatment after the secondary cryogenic treatment. The processing method is carried out at an ultralow temperature; molecular motion is very slow; internal energy in the whole molecular chain is significantly increased; a microstructure of the polymer becomes dense and ordered; and the whole material structure becomes more balanced, so that mechanical property of the material is greatly improved. Due to the cryogenic treatment on the polymer material, polymer chains in the material are arranged in order; grain size becomes small; and degree of crystallinity is increased, so that the wear resistance, bending resistance and tensile strength of the polymer material are greatly improved. The mechanical performances of the processed 3D printed polymer material component are enhanced obviously, so that the processed 3D printed polymer material component can be applied in industrial production more widely.
Owner:NANTONG UNIVERSITY

Hair growth liquid and preparation method thereof

The invention provides hair growth liquid and a preparation method thereof, which belong to the technical filed of traditional Chinese medicine. The hair growth liquid is prepared the following raw materials: ginseng, notoginseng, Radix Astragali, ginger juice, cynomorium songaricum, wolfberry, and Platycladus orientalis. The method comprises the following steps: : (1) washing ginseng, notoginseng, Radix Astragali, ginger juice, cynomorium songaricum, wolfberry and Platycladus orientalis; and (2) extracting all the essences of the medicinal materials and mixing the materials. The raw materialsused in the hair growth liquid are not compatible, and all the raw materials can be extracted from the active ingredients to prepare the hair growth liquid, a ultrasonic extraction method uses ultrasonic waves to increase the frequency and speed of molecular motion, increases solvent penetration, increases drug dissolution rate and dissolution times, shortens extraction time, and significantly improves extraction efficiency. The hair growth liquid synergizes with various Chinese medicine ingredients, can change the blood circulation of the head, activates the hair follicle to re-take nutrients, realizes the rapid loss resisting and hair repairing, and achieves the effect of treating both the symptoms and the root causes.
Owner:江苏中洼食品有限公司
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