12 results about "Liquid lithium" patented technology

The present application belongs to the technical field of high-purity metal preparation, and particularly relates to a vacuum distillation device. The vacuum distillation furnace body is sequentially provided with an evaporation zone, a condensation zone and a melting zone from bottom to top. The evaporation zone is provided with a reflux plate. The condensation zone is provided with a gas guide pipe, a condensation disc, a flow guide pipe and a liquid seal assembly. The flow guide pipe is inserted into the gas guide pipe. The liquid seal assembly is provided with a liquid lithium valve on a liquid seal pipeline. The melting zone is provided with a cone valve and a feed inlet. The vacuum distillation furnace body is located in a heating furnace chamber. The vacuum distillation furnace body is in communication with a vacuum ingot casting box. The vacuum ingot casting box is provided with a crucible, a rotating unit, a motor and heating fins. The present application purifies lithium metal by using a vacuum distillation method, and realizes the preparation of high-purity lithium metal.

This invention belongs to the field of lithium battery material technology, specifically relating to an ultrathin lithium metal anode material with (110) crystal orientation, its continuous preparation method, and its application. The preparation method of this invention includes: Step 1: synthesizing an MXene dispersion; Step 2: preparing an MXene base film or an MXene-modified copper current collector, using it as a substrate; Step 3: heating a lithium source to a molten state under a protective atmosphere to obtain liquid lithium metal; Step 4: adhering the liquid lithium metal to the surface of the MXene base film or the MXene-modified copper current collector as a coating using a hot-pressing method, controlling the thickness of the lithium metal coating by adjusting the lithium loading, and then cooling to room temperature, etc. The preparation method of this invention, through the control of MXene, can prepare lithium metal foil with a thickness of 2-50 micrometers and a preferred (110) crystal orientation, and is suitable for roll-to-roll continuous production. The ultrathin MXene base film-lithium metal composite foil of this invention can be used as a lithium metal battery anode.

The application belongs to the technical field of functional hydrogel and its adsorption and extraction application, and provides Mxene / polyazole flexible composite hydrogel, a preparation method and application thereof, so as to solve the problem of poor flexibility and mechanical property of the current hydrogel. The hydrogel is MXene / PPy / HMO composite flexible hydrogel, and is directly used as a bulk material to realize lithium recovery. Lithium ion sieve (HMO), MXene and polyazole network are crosslinked with each other to form a three-dimensional network structure; the mass of MXene is 1%-5% of the polyazole hydrogel, a Mxene network is formed through physical crosslinking, the contained elements are carbon and titanium, and the atomic number ratio is 2:3; a polyazole hydrogel network is formed through chemical crosslinking. In the presence of MXene and HMO, polyvinyl alcohol and sodium dodecyl sulfonate are introduced, and in-situ polymerization can be carried out. The hydrogel has good flexibility and stretchability, and can be self-healing. The method is simple and easy to implement, and a flexible liquid lithium adsorbent can be directly prepared.

The application discloses a kind of liquid lithium battery negative pole coating material and preparation method thereof, belong to lithium battery negative pole material technical field.The application uses ethylene tar as raw material, sequentially through filtration, distillation, polymerization, blending process, produce the liquid lithium battery negative pole coating material provided by the application is used for the coating treatment of lithium battery graphite negative pole material, can be fully wetted with graphite negative pole material, bonding;The "core-shell" structure formed after the graphite negative pole material is treated using the liquid coating material, including core and the coating layer coated on the surface of core.Coating layer is firm, stable, and presents uniformity.The liquid lithium battery negative pole coating material is in liquid state at normal temperature, and has good flowability;Coking value is higher;It is easy to store, convenient for transportation and use.

This invention discloses a method, apparatus, platform, and storage medium for design optimization of liquid lithium-lead circuits under strong magnetic environment. The method includes: establishing a liquid lithium-lead circuit model, defining basic model parameters, operating boundary conditions, and temperature-dependent physical properties of liquid lithium-lead within the model; dividing the model into multiple computational units, and obtaining the local magnetic field vector at the spatial location of each computational unit based on the strong magnetic field environment parameters under tokamak device operating conditions; obtaining the strong magnetic field coupling calculation results of the liquid lithium-lead circuit model based on the local magnetic field vector at the spatial location of each computational unit; and modifying the model based on these results to output the final liquid lithium-lead circuit design result. This achieves magnetohydrodynamic and thermal-fluid coupling design of the liquid lithium-lead circuit, improving the reliability of the circuit design.

The invention discloses a cylindrical battery and a power utilization device, and belongs to the technical field of new energy materials. By adopting an in-situ polymerization technology, a compact and continuous quasi-solid electrolyte network is constructed in the cylindrical roll core, so that the safety pain points that a traditional liquid lithium ion battery is easy to leak and inflammable and explosive are fundamentally solved, and meanwhile, the technical bottlenecks that a solid-solid interface of a solid-state battery is poor in contact and large in impedance are overcome; according to the battery system, atomic-scale close contact of the electrolyte and the electrode particles is realized, the intrinsic safety and the energy density of the battery are remarkably improved while high ionic conductivity is ensured, and the battery system is particularly suitable for the power and energy storage fields with extremely high safety requirements.

The present application relates to a kind of preparation methods of lithium sulfide, lithium sulfide and system, the method includes the following steps: under the condition of air and moisture isolation, first raw material containing liquid lithium source and second raw material containing sulfur element are respectively passed through first spray inlet and second spray inlet located on cyclone reactor by horizontal or cyclone downward mode and sprayed into reactor to contact and react;Wherein, the liquid lithium source includes molten lithium and / or lithium-liquid ammonia solution;The second spray inlet is below the first spray inlet.The present application is by molten lithium and / or lithium-liquid ammonia solution and the material containing sulfur element are sprayed into cyclone reactor to contact and react, so that liquid lithium source and the material containing sulfur element are rapidly mixed contact, and the residence time of material in reactor can be accurately controlled, and high-purity, particle size controllable battery-grade lithium sulfide can be continuously, rapidly and large-scale produced.

This invention discloses a continuous synthesis method and apparatus for liquid lithium hexafluorophosphate, comprising the following steps: S1, continuously adding lithium fluoride and an organic solvent into a mixing vessel to obtain lithium fluoride mother liquor, and continuously introducing a phosphorus pentafluoride mixed gas into a primary reactor; S2, continuously conveying the lithium fluoride mother liquor to the primary reactor for reaction with the phosphorus pentafluoride mixed gas; the primary reactor conveys the reacted material to a secondary reactor, while simultaneously conveying the unreacted phosphorus pentafluoride mixed gas to the secondary reactor for further reaction; S3, the secondary reactor transfers the unreacted gas out of the reaction system; the material obtained from the secondary reactor is continuously collected into a settling tank; S4, the top of the settling tank collects the synthesis liquid without lithium fluoride solids into a product receiving tank. This invention solves the synthesis efficiency bottleneck of traditional batch reactors and effectively improves the production capacity of liquid lithium hexafluorophosphate per unit time.

This invention discloses a miniaturized experimental loop for liquid lithium-lead hydrogen isotope injection and extraction, belonging to the field of nuclear fusion reactor blanket experimental technology. It comprises two main modules: a liquid lithium-lead loop and a gas path. The liquid lithium-lead loop uses a sealed pipeline connected in series with a lithium-lead storage tank; the gas path includes hydrogen and argon cylinders, a vacuum pump, and a pressure reducing valve to achieve quantitative hydrogen isotope injection and loop purging pressurization. The experimental section can be equipped with extraction components based on three mainstream technical routes: vacuum permeation window, gas-liquid contactor, and vacuum sieve plate. Two hydrogen isotope sensors monitor the hydrogen concentration in the liquid lithium-lead and can calculate the extraction rate based on the difference. A flow meter is adapted to optimize the flow rate process, and the entire loop is equipped with heating and liquid level monitoring to effectively prevent lithium-lead solidification. This invention features a compact structure, stable operation, and strong adaptability, providing a reliable experimental platform for the verification and parameter optimization of advanced blanket tritium extraction technology in fusion reactors.

The application discloses a prediction method and device for reducing the melting lithium wetting property of a graphene oxide film and a medium, and relates to the technical field of lithium metal battery electrode materials. The method comprises the following steps: constructing a melting lithium wetting model and a melting lithium infiltration model; obtaining a target oxidation concentration; determining the size of a first contact angle of the melting lithium under the target oxidation concentration by MD simulation based on the melting lithium wetting model and preset simulation conditions; and determining the size of a second contact angle, the oxygen-containing functional group and the carbon oxidation ratio under the target oxidation concentration by MD simulation based on the melting lithium infiltration model and the simulation conditions. The application is used to solve the problem that the oxidation concentration regulation accuracy of the reduced graphene oxide film is insufficient in the prior art, and liquid lithium cannot be uniformly wetted. The application realizes the accurate regulation of the oxidation concentration by predicting the wetting property corresponding to the target oxidation concentration, so that the liquid lithium can be uniformly wetted.

This invention discloses a hybrid solid-liquid lithium metal battery with a continuous cross-interface ion transport channel and its preparation method, belonging to the field of electrochemical energy storage technology. Addressing the core technical problems of poor solid-solid interface contact, discontinuous ion transport, high interfacial impedance, and poor cycle stability between the lithium metal anode and gel polymer electrolyte (GPE) in hybrid solid-liquid lithium metal batteries, this invention proposes a dual-interface synergistic modification strategy for the anode and electrolyte: through stepwise NF3 / N2 plasma treatment, a LiF-Li3N biphase composite artificial SEI layer with a precisely controllable N / F stoichiometric ratio is constructed in situ on the surface of the lithium metal anode. LiF forms a high-modulus mechanical barrier to suppress lithium dendrites, while Li3N constructs a continuous fast ion conduction network. Simultaneously, a composite GPE reinforced with surface-modified LLZTO ceramic filler is designed to construct a continuous ion conduction network and mechanical support framework within the electrolyte bulk. This invention utilizes the Lewis acid-base affinity, interfacial wetting matching, and thermodynamic compatibility of Li3N and LLZTO to enable in-situ cross-interface connectivity of two-phase fast ion networks under electric field driving, forming a continuous low-impedance "high-speed ion channel" extending from the lithium metal surface to the GPE bulk. This invention significantly reduces battery interfacial impedance, achieves uniform lithium-ion flux and efficient suppression of lithium dendrites, and greatly improves the cycle stability and rate performance of hybrid solid-liquid lithium metal batteries, showing broad application prospects in new energy power batteries, consumer electronics, and large-scale energy storage.

The application relates to the technical field of energy storage, and provides a battery monomer, a preparation method of the battery monomer, a battery device and an energy storage device. The battery monomer comprises: an electrode core assembly, the electrode core assembly comprises a negative electrode sheet, a diaphragm and a positive electrode sheet which are arranged in a stack; a shell, the electrode core assembly is located in the shell; and an electrolyte, the electrolyte is located in the shell; the positive electrode sheet comprises a lithium supplementing material, and a molecular formula of the lithium supplementing material is Li x MO4@A, wherein M is Mo or Al, A is S, Se or Te, and x=2 or 5. The technical scheme provided by the application has at least the following advantages: through combination of positive electrode lithium supplementing material design and in-situ interface polymerization of electrolyte, the problems of active lithium loss, electrolyte dryness and insufficient interface stability in a liquid lithium iron phosphate battery are effectively solved.