208 results about "Liquid lithium" patented technology

The invention discloses a method for preparing a manganese series lithium ion sieve adsorbent, and relates to a method for preparing an inorganic adsorbent for adsorbing lithium from liquid lithium resources such as brine of salt lake, seawater and the like. In the method, a cubic crystal ion sieve precursor Li1.6Mn1.6O4 is prepared from Mn2O3 and LiOH or Li2CO3 serving as raw materials by using two sections of solid-phase reactions, wherein the precursor also can be used as an anode material of a lithium ion battery. The precursor is acidized to obtain a lithium ion sieve adsorbent MnO2.0.5H2O (or expressed as H1.6Mn1.6O4), and the ion sieve is the lithium adsorbent which has high selectivity on lithium. The method has the advantages of simple and readily available raw materials, simple process, high adsorption capacity of the ion sieve, low cost, high purity of products and is easy to realize industrial production.

The present invention relates to the field of lithium battery processing, and discloses a coating composite separation membrane and a preparation method thereof. The coating composite separation membrane comprises a base film and a polymer covering layer coated on the surface of the base film, wherein the polymer covering layer comprises a water-soluble adhesive, a surfactant, a dispersing agent, a thickening agent, deionized water and polymer powder particles. The invention further discloses the preparation method for the coating composite separation membrane. The preparation method comprises: 1) preparing an aqueous slurry; 2) coating the polymer covering layer on the base film; 3) drying; and 4) winding. According to the present invention, absorption capacity and retention capacity of the separation membrane on the electrolyte are well improved, safety of the liquid state lithium battery during the use process is increased, and advantages of environmental protection and low cost are provided.

The invention discloses a high voltage-resistant multi-stage structure composite solid-state electrolyte and its preparation method and use in a solid-state lithium battery. The lithium battery utilizes a multi-stage structure solid-state electrolyte containing different components. A polymer electrolyte with excellent electrode interface compatibility is used as an electrolyte in the negative electrode side. A high voltage-resistant polymer electrolyte is used as an electrolyte in the positive electrode side. A polymer electrolyte or an inorganic electrolyte with high ionic conductivity is used as a middle layer. The multi-stage structure solid-state electrolyte has advantages such as high mechanical properties, high ionic conductivity, a wide electrochemical window, excellent electrode interfacial compatibility and lithium dendrite growth inhibition of different components. Compared with the traditional liquid lithium ion battery, the battery with the multi-stage composite solid-state electrolyte has higher safety and higher energy density.

The invention relates to a preparation method for a composite positive electrode material used for a solid-state lithium ion battery. The preparation method comprises the following steps of i) performing uniform mixing on a solid-state electrolyte or a precursor thereof and a positive electrode active material or a precursor thereof to obtain mixture powder; and ii) performing high-temperature sintering on the mixture powder to obtain the powder-form composite positive electrode material which comprises the solid-state electrolyte and the positive electrode active material. By adoption of the preparation method for the composite positive electrode material provided by the invention, the interface resistance between the solid-state electrolyte and the positive electrode material can be lowered. When the composite positive electrode material, obtained by adopting the preparation method for the composite positive electrode material provided by the invention, is used for preparing the solid-state lithium ion battery, an electrode production line of the conventional liquid-state lithium ion battery can be not changed, so that equipment improvement cost used in improving the production line of the liquid-state lithium ion battery for preparation of the solid-state lithium ion battery can be greatly lowered.

The invention provides a composite lithium metal negative electrode, a preparation method and a lithium ion battery. The method for preparing the composite lithium metal negative electrode comprises the following steps: providing an electronic conductive framework material with a porous structure; carrying out lithium-philic modification treatment of the electronic conductive framework material; mixing the electronic conductive framework material subjected to the lithium affinity modification treatment with liquid lithium; immersing the liquid lithium into pores of the electronic conductive framework material, and performing cooling to obtain the composite lithium metal negative electrode; controlling the ratio of the volume of the liquid lithium to the total volume of the pores in the electronic conductive framework material to ensure that the porosity of the composite lithium metal negative electrode is 20-98% and lithium content of 0.01-0.01% 10mg / cm2. According to the invention, the porosity and the lithium content of the composite lithium metal negative electrode can be accurately controlled through the method, dendritic crystals are effectively prevented from being formed, and the problems of volume expansion, poor cycle performance, high safety risk and the like of the lithium metal negative electrode are solved, so that a battery applying the composite lithium metal negative electrode has high energy density and long-cycle stability.

The invention provides a method for preparing a manganese series lithium-ion sieve adsorbent H4Mn5O12 and a precursor thereof, relating to a preparation method of an inorganic adsorbent for absorbing lithium from liquid lithium resources such as salt brine, seawater, geothermal water and the like. In the preparation method, manganese salts and lithium salts with low melting points are taken as raw materials, organic carboxylic acid is used as an ingredient, the precursor Li4Mn5O12 is obtained through soft chemical synthesis and low-temperature roasting; acid treatment is carried out on the precursor, and Li in the precursor is extracted to be converted to an H-type ion sieve represented by H4Mn5O12 or MnO2.0.31H2O; and the H-type ion sieve H4Mn5O12 is filtered, washed and dried to obtain the adsorbent capable of sieving lithium ions. The method of the invention has simple process, and the obtained ion sieve has the advantages of small dissolving loss, fast adsorption rate and high adsorption capacity.

The invention relates to a semi-liquid lithium-sulfur battery; elemental sulfur, organic or inorganic sulfur particles and electrolyte are mixed and contained into an anode liquid tank; cathode lithium powder, carbon particles and electrolyte are mixed and contained into a cathode liquid tank; an anode, a diaphragm and a cathode of a battery stack are assembled; and the anode liquid tank is connected with the anode of the battery stack through a liquid conveying pipe and a constant flow pump, and the cathode liquid tank is connected with the cathode of the battery stack through the liquid conveying pipe and the constant flow pump, so that the complete large-capacity semi-liquid lithium-sulfur battery is formed.

The method includes following step: two monomers are mixed according to the ratio of 1.0 to 1.0-9.0; then it mixes with thermal booster and liquid lithium ion battery solution to form the fore body of gel polymer dielectric; the fore body is injected into half finished battery. the half finished battery is vacuumized and sealed; the half finished battery is made thermal polymerization reaction, and the gel polymer dielectric is obtained.

The invention provides a lithium ion solid conductor material shown as a formula (I): (100-x)(yLi2S.zP2S5).xM. In the formula (I), the x is greater than 0 but smaller than or equal to 40, a ratio of the y to the z is 3:1; the M is lithium halide. According to a lithium ion solid conductor, lithium halide compounds are introduced into sulphide electrolyte, so that halogen atoms and metal lithium mutually act to form a buffer layer, like an SEI film in a liquid lithium battery; the further reaction between the electrolyte material ingredient and the metal lithium is effectively relieved; the stability of the electrolyte and the metal lithium electrode is improved. In addition, the lithium halide compounds are introduced into the sulphide electrolyte; a multi-dimensional passage for lithium ion transmission is provided; the activity space is increased; the lithium ion conductivity improvement is caused. Therefore the ion conductivity of the sulphide electrolyte can also be improved through the introduction of lithium halide.

The invention discloses a zinc oxide-metal lithium composite negative electrode and a preparation method thereof, and a metal lithium secondary battery. The zinc oxide-metal lithium composite negativeelectrode has a three-dimensional structure and comprises foamy copper and metal lithium and zinc oxide compounded in the foamy copper. The negative electrode utilizes combination of foamy copper andmetal lithium, utilizes three-dimensional foamy copper as a skeleton, utilizes a hydrothermal method to deposit a layer of a zinc oxide nano-layer on the foamy copper surface, and utilizes the lithium loving performances of the zinc oxide nano-layer to melt the solid lithium metal into liquid lithium spontaneously adsorbed into the three-dimensional foamy copper skeleton. Compared with the lithium sheet negative electrode, the three-dimensional metal lithium negative electrode has a large specific surface area and can effectively reduce the current density during charging and discharging. Theporous structure can well limit lithium in the internal space, reduce the volume expansion of the lithium negative electrode during charging and discharging, and effectively inhibit the growth of dendrites.

The invention discloses a synthesis method of a lithium extraction adsorbent. The preparation method comprises the following steps: dissolving a lithium source in a solvent containing a certain amountof additive, then adding a titanium source into the solvent to be uniformly mixed to form a solid-liquid mixed state, and carrying out drying treatment to assist synthesis, so that the raw materialsare rapidly dried, fully mixed and calcined to obtain a lithium-ion sieve precursor Li2TiO3 with uniformly distributed particle sizes. A metatitanic acid type lithium ion sieve H2TiO3 obtained after acid pickling and lithium removal of the precursor Li2TiO3 has a remarkable adsorption effect. The method is simple and easy to implement, and the lithium ion sieve H2TiO3 is mainly used for extractinglithium from salt lake brine, oil field brine, seawater and other water bodies and has huge potential in the aspect of liquid lithium extraction.

The invention relates to a hybrid reactor cladding for realizing long-term energy amplification by using a fast-thermal coupling mixed energy spectrum, which comprises a first wall, a fast fission region, a non fission neutron multiplication area, a thermal fissile area and a tritium breeding area. The structure of the hybrid reactor cladding is the first wall, the fast fission area, the non fission neutron multiplication area, the thermal fission area and the tritium breeding area in sequence from inside to outside. The cladding adopts the way that helium flows circumferentially and is cooled step by step. Helium enters into the cladding from a side pipeline of the first wall, enters into a fast neutron fission area transversely through the cladding after cooling the first wall, enters into the non fission neutron multiplication area and the thermal fission area from the other side of the cladding after cooling the fast neutron fission area and then enters the side pipeline of the first wall and flows out. Liquid lithium lead in the tritium breeding area enters into the cladding from the upper part of the cladding and flows out from the lower part and brings out heat and tritium relying on the flow. According to the hybrid reactor cladding, the long-term energy amplification, higher power generation efficiency and better safety can be achieved.

The invention discloses surfactant-containing electrolytic solution of a lithium-ion secondary battery, which contains an organic solvent, a lithium salt electrolyte and a surfactant of a fluorine compound. The surfactant is ethoxylated nonionic fluorine carbon surfactant and has a chemical structural formula of RfCH2CH2O(CH2CH2O)mRc, wherein the Rf is a fluorine carbon chain hydrocarbon represented by F(CF2CF2)n; the value of m ranges from 0 to 100; the value of n in the fluorine carbon chain hydrocarbon ranges from 0 to 50; and the Rc may be one of H, Li, Na, K, Ru and the like, may be an alkyl such as methyl, ethyl and phenyl or an aromatic base, also may be Rf like fluorine carbon chain hydrocarbon structure. The surfactant can reduce the surface tension of electrolytic solution of a liquid lithium-ion secondary battery, optimizes the anode and cathode material and diaphragm wetting performance of the electrolytic solution, optimizes the electrochemical performance of the whole battery, improve capacity effectiveness of the whole battery by about 1 to 3 percent, allows the whole battery to circulate for 500 times at a power factor of 1C and improves the capacity retaining rateto 90 percent from the 80 percent in the prior art.

The invention discloses a silicate inorganic aqueous binder. The silicate inorganic aqueous binder is obtained by mixing 32-42 mass parts of liquid sodium silicate, 5-13 mass parts of liquid potassium silicate, 5-7 mass parts of silica sol, 2-3 mass parts of deionized water, 5-9 mass parts of liquid lithium silicate, and 5-8 mass parts of an inorganic acid. The inorganic acid is a phosphoric acid solution having the content of 10% or a formic acid solution having the content of 10%. The silicate inorganic aqueous binder is environmentally friendly, non-combustible and non-toxic. The silicate inorganic aqueous binder has optimized and improved water resistance, stability and endurance.

The invention discloses a method for preparing polymer solid electrolyte, which adopts mixed epoxy resin and nitrile rubber as a substrate of the solid electrolyte, dissolves the substrate and lithium perchlorate in tetrahydrofuran, and prepares the composite polymer solid electrolyte by a solution casting method. The method is simple to operate and easy to form a film, and the prepared polymer solid electrolyte can overcome the defects of difficult forming of gel type polymer electrolyte, complex film-making process of polymer / ionic liquid electrolyte, etc., and simultaneously can solve the safety problems of easy volatilization and easy leakage of electrolyte of a liquid lithium ion battery. The electrical conductivity of the prepared polymer solid electrolyte can reach 1.81*10<-4> S.cm<-1> at a temperature of 20 DEG C, improves by 3 to 4 times compared with pure nitrile rubber / lithium perchlorate polymer electrolyte, and is in the same level with the electrical conductivity of polymer electrolyte which is reported in literature and prepared by compositing the nitrile rubber and an ionic liquid. The prepared polymer solid electrolyte has stable performance at a temperature of less than 200 DEG C, and can meet the use requirement on the lithium ion battery.

The invention relates to lithium metal / porous metal oxide compositions. These lithium metal compositions are prepared by mixing liquid lithium metal with a porous metal oxide in an inert atmosphere under exothermic conditions sufficient to absorb the liquid lithium metal into the porous metal oxide pores. The lithium metal / porous metal oxide compositions of the invention are preferably loaded with lithium metal up to about 40% by weight, with about 20% to 40% by weight being the most preferred loading. The invention also relates to lithium reagent-porous metal oxide compositions having RLi absorbed into a porous oxide. The preparation and use of these compositions are also described.

The invention relates to a method for manufacturing a sodion battery negative pole material and a negative pole and a sodion battery. The sodion battery negative pole material is reacted with Na2S, elemental niobium and elemental sulfur by one step to obtain a sulfide negative pole material via a high-temperature solid phase method; since NbS2 can form a NaxNbS2 compound (x is larger than or equal to zero and less than or equal to 1) during an electrochemistry charging / discharging process; Nb<4+> / Nb<3+> are for reversible disoxidation and oxygenation, therefore, manufactured sodion negative pole material is provided with higher charging / discharging capacity and better circulation performance, and further manufactured sodion battery negative pole and sodion battery are provided with higher charging / discharging capacity and better circulation performance; and in addition, the method is simple in process and easy to operate, high in production efficiency, producing capacity and purity; an organic solvent is not required to serve as an extractant, a manufacture and required production line is compatible with the conventional liquid lithium ion battery production line, and the conventional production line can be directly used.

The invention relates to the forming and capacity grading of batteries, and specifically relates to a forming and capacity grading method of a lithium ion secondary battery. The method comprises the following steps of respectively placing clamp plates (3) at the left and right wide surfaces (2) of an uncharged liquid lithium ion polymer battery (1) which undergoes hot and cold rolling, clamping the two clamp plates (3) by using a clamp (4) which is capable of applying external force and placing the uncharged liquid lithium ion polymer battery (1) which is equipped with the clamp plates (3) and the clamp (4) into a detection cabinet for forming and capacity grading so as to obtain the forming and capacity grading continuously completed battery. According to the forming and capacity grading method of the lithium ion secondary battery, the process is improved and the generation of lithium analysis is avoided or decreased according to the mechanism of forming gas generation and the reasons of the lithium analysis on the premise of not changing the system characteristics of the main materials of the liquid lithium ion polymer battery, and the embedding and the de-embedding of the lithium ions are not influenced under the state of generating gas.

The invention relates to the field of modified diaphragm preparation process technology for lithium ion cells. The preparation process of modified diaphragm for polymer lithium ion cell in the invention comprises the following steps: forming modified diaphragm, mixing chemical cross-linking agent monomer with polymer which has physical cross-linking property according to molar ratio of 10:100-50:50, dissolving the mixture into organic solvent to form modifying fluid whose viscosity is kept within 30Psi-300Psi, using conventional liquid lithium ion cell diaphragm as diaphragm substrate to dip in the modifying fluid, drying after taking out, thereby obtaining the modified diaphragm. Since porous polymer layer on the surface of the modified diaphragm has strong fluid storage ability for electrolyte, stable and even interface and smooth ion transmission channel can be obtained after the modified diaphragm is used between electrode which is solidified in cross-linking and diaphragm, thereby effectively increasing the large current charge and discharge property and cycling property of polymer cell products.

The invention provides a method and apparatus for a commercially viable EUV light source for EUV metrology and actinic inspection of EUV lithography masks. The invention is carried out using a laser target in the form of a continuous jet of liquid Lithium, circulated in a closed loop system by means of a high temperature pump. The collector mirror is placed outside the vacuum chamber in an environment filled with an inert gas and EUV output to a collector mirror is provided through the spectral purity filter, configured as an EUV exit window for the vacuum chamber. In the vacuum chamber, the input window for the laser beam is coated with a screening optical element. Evaporative cleaning of the EUV spectral purity filter and the screening optical element is provided. The protective shield with a temperature higher than 180° C. may be adjusted around the target jet.

Embodiments of the claimed invention are directed to a device, comprising: an anode that includes a lithiated silicon-based material and a sulfur-based cathode, wherein the anode and the cathode are designed to have mesoporous structures. In certain embodiments, the sulfur-based cathode is a mesoporous carbon structure comprising sulfur within the mesopores. A further embodiment of the invention is directed to a device comprising a semi-liquid lithium-sulfur battery comprising a lithium anode and a sulfur cathode. In certain embodiments, the sulfur cathode comprises a liquid catholyte, which is housed within a reservoir that is a carbon nanotube sponge. An additional embodiment of the invention is directed to a method for producing a lithiated silicon anode and a sulfur-based cathode.

A liquid lithium jet nozzle comprising: an inlet through which liquid lithium flows into the nozzle; an inlet flow channel that receives liquid lithium that flows into the nozzle via the inlet and shapes the flowing liquid lithium to flow in a thin film; and a flow region that receives flowing liquid lithium shaped by the flow channel and in which the liquid lithium flows with at least one large surface of the film exposed.

The invention discloses an electrode plate as well as a preparation method and application thereof. The preparation method comprises the following steps: preparing an electrode material plate: stirring an electrode material, a conductive agent, an adhesive, a dispersing agent and a pore-forming agent to obtain slurry, coating the surface of a current collector with the slurry, and conducting drying to obtain the electrode material plate; preparing an electrolyte solution: performing mechanical ball milling on the solid electrolyte to obtain electrolyte powder, and dissolving the electrolyte powder in an organic solvent to obtain the electrolyte solution; preparing the electrode plate:soaking the electrode material plate in the electrolyte solution, then conducting heating, drying and tabletting under the vacuum condition to obtain the electrode plate. The electrode plate of the solid-state lithium ion battery is prepared through the preparation method. The prepared electrode plate is applied to any one of a traditional liquid lithium battery, a polymer lithium battery, a mixed solid-liquid electrolyte lithium storage battery and a solid-state battery. The preparation method has theadvantages that the preparation process is low in cost, large-scale production is easy, and the prepared electrode plate has excellent electrochemical performance.

The invention discloses a preparation method for a lithium ion battery gel polymer electrolyte. The preparation method comprises the following steps of: polymerizing monomer acrylonitrile and a polyvinyl acetate emulsion to obtain a copolymer; adding the copolymer and nanoparticles into a solvent to obtain gel liquid; soaking a non-woven fabric support body in the gel liquid and taking the soaked non-woven fabric support body out; initiating phase transfer in deionized water; and obtaining a non-woven fabric support body supported lithium ion battery gel polymer electrolyte by drying and soaking. The electrolyte obtained by the preparation method has obviously improved mechanical strength, greatly reduced production cost, and obviously improved ionic conductivity, decomposition voltage, and electrochemical performance such as the charge-discharge cycle performance, the rate performance and the like of an overall battery compared with the electrolyte without a support body. The preparation method has a simple preparation process, short time and high efficiency, is compatible with conventional liquid lithium ion battery preparation equipment, and does not need to redesign a production line.

Lithium-ion battery electrode constructions use an array of nanowires (or of other long thin shapes) of active electrode material anchored at one end to a surface of a metal current collector sheet in an electrode assembly or construction. This form of active electrode material permits good contact with a liquid lithium-ion containing electrolyte that infiltrates the closely-spaced thin shapes. Stresses arising from volume changes in the long shapes with lithiation and de-lithiation of the active material is mitigated by strategic placement of shape memory apply forms between attachment surfaces of the active electrode material and other members of the electrode assembly.

The present invention discloses a gas-liquid exchange type liquid lithium lead alloy bubbler, and belongs to the technical field of a fusion reactor liquid cladding. The gas-liquid exchange type liquid lithium-lead alloy bubbler comprises two parts of a main circuit system and an assistant system. The main circuit system comprises a lithium lead saturator, a filler tower, a lithium lead collector, a gas circuit and a liquid flowing path. The assistant system comprises a measurement-control system and a vacuum system. According to the gas-liquid exchange type liquid lithium lead alloy bubbler of the present invention, the filler tower is arranged; after passing through a porous diffuser, the hydrogen isotope-saturated lithium lead alloy melt flows through a stainless steel filler from top to bottom, and exchanges with belt-carried gas, wherein the belt-carried gas flows through the stainless steel filler from bottom to top; the extraction effect of the hydrogen isotope is significant; the solubility measurement of the hydrogen isotope in the liquid lithium lead is accurate; the high temperature sealing performance is good; the case of plugging due to impurities is not easily generated.

Layers of particles of positive or negative electrode materials for lithium-secondary cells are deposited on porous separator layers or current collector films using atmospheric plasma practices for the deposition of the electrode material particles. Before the deposition step, the non-metallic electrode material particles are coated with smaller particles of an elemental metal. The elemental metal is compatible with the particulate electrode material in the operation of the electrode and the metal particles are partially melted during the atmospheric deposition step to bond the electrode material particles to the substrate and to each other in a porous layer for infiltration with a liquid lithium ion-containing electrolyte. And the metal coating on the particles provides suitable electrical conductivity to the electrode layer during cell operation.

The invention discloses a lithium flow battery reactor and an electrode suspension liquid lithium intercalated synthesis method. The battery reactor is formed by fixing one or more assembled structures respectively consisting of a negative current collection core, a lithium negative electrode, a hollowed bushing, a porous diaphragm and a positive current collection core in a reaction tank. Lithium intercalation is performed on electrode suspension liquid by utilizing the battery reactor in an electrochemical synthesis way, the electrode suspension liquid is injected into the reaction tank, lithium ions which are separated from the lithium negative electrode in the reaction tank are finally intercalated into active material particles of the electrode suspension liquid, and the electrochemical synthesis process and the lithium intercalation degree of the electrode suspension liquid in the reaction tank are controlled by adjusting the flow rate, the voltage and the circular reaction times of the electrode suspension liquid. Due to the adoption of the method, a stable lithium-enriched electrode material or a metastable-phase lithium-containing alloy with high electric capacity can be obtained, and the energy density and the cycle life of a battery can be improved.

The invention discloses a graphene-based high-performance composite lithium metal negative electrode material and a preparation method thereof. The preparation method comprises the steps of using a modified graphene oxide as a substrate, performing vacuum suction filtration and drying on the substrate to obtain a graphene oxide (GO) thin film, carrying out thermal reduction on the GO thin film inan argon atmosphere having water and oxygen content less than 0.1 ppm to obtain reduced graphene oxide (RGO), pre-embedding high temperature liquid lithium metal at the temperature of 400 DEG C into the RGO, and cooling the RGO to obtain a three-dimensional layered lithium metal negative electrode, that is, the graphene-based high-performance composite lithium metal negative electrode material. The obtained three-dimensional layered lithium metal electrode material has good lithium storage performance and excellent cycle stability, and the energy and power density of a lithium ion battery madeof the material are improved to a certain extent. A porous three-dimensional graphene bracket inhibits the volume expansion of lithium, and the electrode material exhibits the advantages of good flexibility and small changes in electrode size during the cycling process.

The invention discloses a method for manufacturing a gel polymer electrolyte and a gel-state battery through in-situ ring-opening polymerization. The method comprises the following steps of (1) uniformly dispersing lithium salt in a 1, 3 dioxolane (DOL) solvent in an argon atmosphere, then adding a lithium salt additive and a plasticizer, and uniformly dispersing to obtain a precursor solution; (2) injecting the precursor solution into a glass fiber / polypropylene diaphragm according to an assembling method of a liquid lithium battery, and assembling a button battery; and (3) standing or heating for a long time, carrying out DOL in-situ ring-opening polymerization and forming a polymeric-state gel electrolyte (Poly-DOL) in the battery, and then obtaining a gel electrolyte battery. In the invention, a ring-opening polymerization reaction of an epoxide DOL solvent is successfully induced through lithium difluoroborate, manufacturing of the gel polymer electrolyte and the gel state batteryis realized in situ, and problems of poor physical contact between the gel electrolyte and an electrode material and a relatively large interface impedance are solved.