21 results about "Lyonium ion" patented technology

The invention discloses a double-site doped titanium lithium ion sieve adsorbent as well as a preparation method and application thereof. The adsorbent is a lithium removal product of a double-site doped titanium lithium ion sieve adsorbent precursor, the chemical general formula of the double-site doped titanium lithium ion sieve adsorbent precursor is Li (2-x) MxTi (1-y) NyOz, M is at least one of Na < + >, K < + >, Zn < 2 + >, Co < 2 + >, Ni < 2 + >, Mg < 2 + > and Al < 3 + > and occupies Li site, N is at least one of Cr < 3 + >, Fe < 3 + >, Zr < 4 + >, Nb < 5 + >, Ta < 5 + >, V < 5 + >, Mo < 6 + > and W < 6 + > and occupies Ti site, x is larger than or equal to 0.001 and smaller than or equal to 0.5, and y is larger than or equal to 0.001 and smaller than or equal to 0.5. Metal cations are introduced to replace Li sites and Ti sites at the same time, Li site substitution enlarges interlayer spacing and improves Li < + > diffusion rate, Ti site substitution regulates local chemical bond and electron distribution, stabilizes lattice structure and enhances electron conduction, and through double-site doping, 'ion-electron 'double channels are constructed, so that a collaborative optimization effect is achieved. The double-site doped titanium lithium ion sieve adsorbent disclosed by the invention is applied to adsorption and extraction of lithium in a Bayer process sodium aluminate solution, and the adsorbent shows excellent adsorption performance.

The invention discloses a high-entropy polyanion halide solid electrolyte as well as a preparation method and application thereof, and belongs to the technical field of electrochemical energy storage. The chemical general formula of the high-entropy polyanion halide solid electrolyte is AxMyNzXmOn, A is any one or more of Li, Na, K, Cu and Ag, M is any one or more of Ta, Zr and Nb, N is composed of P, Si, B, C and S, and X is one or more of fluorine, chlorine, bromine and iodine. According to the solid electrolyte, eight polyanion radicals (PO4 < 3->, SiO4 < 4->, CO3 < 2->, BO < 2->, SO4 < 2->, P2O74 <->, ClO4 <-> and B4O74 <->) are introduced into an A-M-Cl frame structure, so that the solid electrolyte can be used for preparing the high-entropy polyanion halide solid electrolyte. The polyanion radicals are connected with the adjacent [MCl] polyhedrons in a cluster form through common edges and common vertexes, so that a chain structure is formed. According to the halide solid electrolyte disclosed by the invention, the torsion resistance of an amorphous structure is increased through a special connection mode, a free space is expanded, and efficient transmission of lithium ions is facilitated. The example conductivity of the halide electrolyte material at room temperature exceeds 20 mS cm <-1 > at most.

The invention relates to a microcrystal / amorphous halide solid electrolyte which is doped and modified lithium zirconium halide, and the chemical formula of the microcrystal / amorphous halide solid electrolyte is Li < x > Zr < 1-y-z > Ta < y > M < 1z > X O < delta >, in the formula, M1 is any one of Nb, Hf, Mo and W, X is at least one of Cl, Br and I, 1.4 < = x < = 4, 0.3 < = y < = 0.7, 0.1 < = z < = 0.2, 4 < u < = 5, 0.7 < = delta < = 2. According to the invention, due to the synergistic effect of two high-valence positive ions and negative ion O < 2-> doping, lithium ions are easier to migrate in crystal lattices, the migration distance is reduced, and the original lithium zirconium-based halide with a trigonal structure is converted into an amorphous structure mixed with a small amount of microcrystals, so that the improvement of the ionic conductivity of the lithium zirconium-based halide is realized; the room-temperature ionic conductivity of the finally prepared microcrystal / amorphous halide solid electrolyte is 2.5 mS / cm or above.

A process for removing Pb2+ ions from fluids, such as gastrointestinal fluids is described. The process involves contacting gastrointestinal fluid with a particulate metal titanate ion exchanger represented by the empirical formula: AmTixMyOz where A is an exchangeable cation selected from the group consisting of potassium ion, sodium ion, lithium ion, calcium ion, magnesium ion, hydronium ion, and mixtures thereof, and M is optionally at least one framework metal selected from niobium (5+), zirconium (4+), tin (4+), iron (3+), iron (2+), cobalt (2+), and manganese (2+). The particulate metal titanate ion exchangers of the present disclosure are synthesized in the presence of complexing agents, including at least one multihydroxyl-containing complexing agent (MHCA), which facilitate metal transport and incorporation while imparting beneficial properties such as large aggregate size, well-behaved particle size distribution, and macroporosity.

The invention relates to a pretreatment method of a solid electrolyte, the solid electrolyte comprises lithium lanthanum zirconium oxide, the pretreatment method comprises the following steps: obtaining a residual lithium reference value of lithium ions in the solid electrolyte, the residual lithium reference value being the mass percentage of the lithium ions in the solid electrolyte; adding a solid electrolyte to a solvent to obtain a hydrolysis resistant suspension, where the solvent includes isopropanol for less than 1% of the residual lithium reference value; for the residual lithium reference value larger than or equal to 1% and smaller than 3%, the solvent comprises isopropanol and water, and the mass ratio of the water to the isopropanol is (1-2): (8-9); and separating the hydrolysis-resistant suspension to obtain a hydrolysis-resistant clear liquid. In addition, the invention also provides a method for measuring the surface residual lithium value of the solid electrolyte.

An oxide particle coated with amino groups, representing an LLZO composite particle; the LLZO composite particle is used in an electrode of a solid-state or semi-solid-state battery; and the electrode comprises a substrate and an electrode slurry layer coated onto the substrate; the LLZO composite particle comprises the following: a first LLZO particle, which serves to guide and distribute the paths of the lithium ions and to ensure that evenly distributed lithium ion channels are formed within the electrode; a hydroxide ion layer applied to an outer surface of the first LLZO particle; the hydroxide ion layer and the first LLZO particle form a second-order LLZO composite particle; the hydroxide ion layer is formed by a reaction of Tris molecules (tris(hydroxymethyl)aminomethane, ((HOCH2)3CNH2) and features a plurality of third OH ions; each of the Tris molecules comprises three OH ions, namely a first, a second, and the third OH ion; wherein the first and second OH ions of the Tris molecules are bound by hydrogen bonds to oxidizing functional groups on the first LLZO particle; and wherein the third OH ions of the Tris molecules extend outwards to an outer surface of the first LLZO particle to form the hydroxide ion layer; and a dopamine layer applied to an outer surface of the second-order LLZO composite particle; wherein the dopamine layer is formed from a plurality of copolymerized dopamine molecules; wherein a dehydration-induced polymerization is carried out between OH ions of the dopamine molecules and the third OH ions of the hydroxide ion layer of a corresponding second-order LLZO composite particle to cause the dopamine layer to remain connected to the second-order LLZO composite particle by means of the hydroxide ion layer; and wherein the dopamine molecules of the dopamine layer are hydrophobic to protect the first LLZO particle and prevent the first LLZO particle from becoming wet.

The invention discloses a method for rapidly and efficiently preparing lithium-rich spinel and application of the lithium-rich spinel in the field of energy storage. The chemical composition of the lithium-rich spinel is Li (Li0. 17Mn0. 83) 2O4. The method comprises the following steps: 1) weighing Li < + >, Mn < 2 + > and HCOOH according to different stoichiometric number ratios, putting the weighed Li < + >, Mn < 2 + > and HCOOH into a lining of a reaction kettle, adding a certain amount of N, N-dimethylformamide (DMF) solution into the lining of the reaction kettle to dissolve the materials, screwing the reaction kettle, putting the reaction kettle into an air dry oven, reacting for 72 hours at 140 DEG C, washing for 3-5 times by using a methanol (CH3OH) solution, and drying to obtain a precursor; drying to obtain a lithium-manganese coordination polymer precursor; and 2) placing the coordination polymer precursor in a porcelain boat of a tubular furnace, and reacting at a certain temperature for a certain time to obtain the lithium-rich spinel material Li (Li0. 17Mn0. 83) 2O4. And 3) Li (Li0. 17Mn0. 83) 2O4 is used as a lithium ion battery positive electrode material and is used in the field of energy storage. The synthesis method disclosed by the invention has the characteristics of simple experimental operation, high repeatability and the like; the lithium-rich spinel material prepared by the invention shows excellent electrochemical performance.

Composite ceramic electrolyte particles with a hydrophobic protective layer for a battery electrode; the composite ceramic electrolyte particle represents an LLZO composite particle; the battery electrode is an electrode of a solid-state or semi-solid-state battery; the electrode comprises a substrate as a support for the electrode material and an electrode slurry layer coated onto the substrate; the LLZO composite particle comprises the following: a first LLZO particle, which serves to guide and distribute the paths of the lithium ions and to ensure that evenly distributed lithium ion channels are formed within the electrode; a first hydroxide ion layer applied to an outer surface of the first LLZO particle; the first hydroxide ion layer and the first LLZO particle form a second-order LLZO composite particle; the first hydroxide ion layer is formed by a reaction of Tris molecules (tris(hydroxymethyl)aminomethane-(HOCH2)3CNH2) and has a plurality of third OH ions; the Tris molecules are added during the fabrication process of the LLZO composite particle; each of the Tris molecules has three OH ions, namely a first, a second, and a third OH ion; the first ions and the second OH ions of the Tris molecules are bound by hydrogen bonds to oxidizing functional groups on the first LLZO particle; the third OH ions of the Tris molecules extend outwards to an outer surface of the first LLZO particle to form the first hydroxide ion layer; A first dopamine layer is applied to the outer surface of the second-order LLZO composite particle; the first dopamine layer and the second-order LLZO composite particle form a hydrophobic LLZO particle; the first dopamine layer is formed by a multitude of copolymerized dopamine molecules; polymerization, triggered by dehydration, between the OH ions of the dopamine molecules of the first dopamine layer and the third OH ions of the first hydroxide ion layer is intended to cause the first dopamine layer to be bonded to the second-order LLZO composite particle via the first hydroxide ion layer; the dopamine molecules of the dopamine layer are hydrophobic to protect the first LLZO particle and prevent it from becoming wet; an outer hydrophobic layer applied to an outer surface of the hydrophobic LLZO particle; the outer hydrophobic layer and the hydrophobic LLZO particle form the LLZO composite particle; the outer hydrophobic layer comprises a plurality of peripheral composite particles; each of the peripheral composite particles is selected from a barium titanate (BaTiO3) composite particle and a zinc oxide (ZnO) composite particle; wherein each of the peripheral composite particles comprises a peripheral particle; if the peripheral composite particle is the barium titanate composite particle, the peripheral particle is referred to as a barium titanate particle; if the peripheral composite particle is the zinc oxide composite particle, the peripheral particle is referred to as a zinc oxide particle; a second hydroxide ion layer is applied to an outer surface of the peripheral particle; and a second dopamine layer is applied to an outer surface of the second hydroxide ion layer; wherein the second hydroxide ion layer is formed by a reaction of the Tris molecules (Tris(hydroxymethyl)aminomethane-(HOCH2)3CNH2) and has a plurality of third OH ions; the Tris molecules are added during the manufacturing process of the LLZO composite particle; each of the Tris molecules has three OH ions, namely a first, a second and a third OH ion; the first and second OH ions of the Tris molecules are bound by hydrogen bonds to oxidizing functional groups on a corresponding barium titanate particle or zinc oxide particle; the third OH ions of the Tris molecules extend outwards to an outer surface of the corresponding barium titanate particle or zinc oxide particle to form the second hydroxide ion layer; wherein the second dopamine layer is formed by a plurality of copolymerized dopamine molecules; a polymerization triggered by dehydration is carried out between OH ions of the dopamine molecules of the second dopamine layer and the third OH ions of a corresponding second hydroxide ion layer to cause the second dopamine layer to be linked to a corresponding barium titanate particle or zinc oxide particle by the corresponding second hydroxide ion layer; and wherein the outer hydrophobic layer is applied to the outer hydrophobic layer of the outer surface of the hydrophobic LLZO particle by chain copolymerization of the dopamine molecules of the first dopamine layer and the dopamine molecules of the second dopamine layer.

The present invention relates to an electrochemical element comprising: a negative electrode comprising at least particles comprising silicon; and a positive electrode comprising, as active material: i) at least one compound LixMn1.y.zFeyMzPO4 (I), wherein M is selected from among (B, Mg, AI, Si, Ca, Ti, V, Cr, Co, Ni, Cu, Zn, Y, Zr, Nb, S, K, Pb, V, Mo, W, Hf, Bi, Se and mixtures thereof); with 0.8 ≤ x ≤ 1.2; 0.5 ≤ 1-y-z < 1; 0 < y ≤ 0.5; 0 ≤ z ≤ 0.2; ii) at least one compound Liw(NixMnyCozM't)O; (II), wherein M' is selected from among (AI, B, Mg, Si, Ca, Ti, V, Cr, Fe, Cu, Zn, Y, Zr, Nb, W, Mo, S, Sr, Ce, Ta, Ga, Nd, Pr, La and mixtures thereof); with 0.9 ≤ w ≤ 1.1; 0 < x; 0 ≤ y; 0 ≤ z; 0 ≤ t; wherein: a) the ratio (% Si / A) is such that: 0.7 ≤ (% Si / A) ≤ 4.0, (A) being the product of the content by weight of compound (I) in the positive active layer, expressed relative to the total weight of compounds (I) and (II), and the molar content of iron (%Fe) in compound (I), expressed relative to the molar content of iron and manganese in compound (I); and (%Si) being the content by weight of silicon in the active material of the negative active layer, expressed relative to the total weight of the active material of the negative active layer; and ≤ b) the ratio (N / P) between the first-charge capacity of the negative electrode and the first-charge capacity of the positive electrode is such that: 1.1 ≤ (N / P) ≤ 1.7.

A process for removing Pb2+ ions from fluids, such as gastrointestinal fluids is described. The process involves contacting gastrointestinal fluid with a particulate metal titanate ion exchanger represented by the empirical formula:AmTixMyOz where A is an exchangeable cation selected from the group consisting of potassium ion, sodium ion, lithium ion, calcium ion, magnesium ion, hydronium ion, and mixtures thereof, and M is optionally at least one framework metal selected from niobium (5+), zirconium (4+), tin (4+), iron (3+), iron (2+), cobalt (2+), and manganese (2+). The particulate metal titanate ion exchangers of the present disclosure are synthesized in the presence of complexing agents, including at least one multihydroxyl-containing complexing agent (MHCA), which facilitate metal transport and incorporation while imparting beneficial properties such as large aggregate size, well-behaved particle size distribution, and macroporosity.

A lithium ion conductor includes a compound of Formula 1:Li7−a*α−(b−4)*β−xMaαLa3Zr2−βMbβO12−x−δXxNδ  Formula 1wherein in Formula 1,Ma is a cationic element having a valence of a,Mb is a cationic element having a valence of b, andX is an anion having a valence of −1,wherein, when Ma comprises H, 0≤α≤5, otherwise 0≤α≤0.75, andwherein 0≤β≤1.5, 0≤x≤1.5, (a*α+(b−4)β+x)>0, and 0<δ≤6.

The invention belongs to the field of associated mineral extraction methods, and discloses a method and system for extracting deuterium and lithium from oil and gas field produced water. The method comprises the following steps: sequentially carrying out oil removal treatment, desulfurization treatment, adsorption pretreatment, lithium ion adsorption, divalent cation removal, first-time electrolysis, filtration and purification, Na2CO3 feeding, evaporation and condensation, second-time electrolysis and third-time electrolysis on the oil and gas field produced water, and simultaneously extracting deuterium and lithium in the oil and gas field produced water. On the basis of meeting the lithium extraction requirement of'pretreatment + adsorption + membrane separation + crystallization ', a water electrolysis process is added, deuterium and lithium are synchronously extracted, and through system optimization, the product purity and the recovery rate are improved, and the energy consumption is reduced.

The invention relates to the field of solid electrolyte, in particular to a super-ionic metal organic framework, a preparation method and application thereof, a solid electrolyte composite membrane and application thereof. Mixing zirconium chloride with terephthalic acid and dimethylformamide to obtain a mixed solution; carrying out standing reaction on the mixed solution, centrifuging to obtain a precipitate, and drying the precipitate to obtain an MOF precursor; and dispersing the MOF precursor in methanol, stirring and mixing with lithium sulfate, and sequentially washing and drying the filtered solid to obtain the super-ionic metal organic framework. According to the invention, lithium ions are uniformly introduced into MOF through a Li2SO4 penetration method, so that the super-ionic state Li-MOF-SO4 is constructed, the ionic conductivity is obviously improved: the ionic conductivity reaches 5.3 * 10 <-3 > S / cm at room temperature, the structural stability is enhanced: the capacity retention rate gt after 1000 cycles; the process is green and efficient, and a low-temperature solution method is adopted, so that complicated post-treatment is not needed.

Methods of treating lead poisoning are described. The methods involve administering to a patient in need thereof a therapeutically effective dose of a pharmaceutical composition comprising a particulate metal titanate ion exchanger having an empirical formula on an anhydrous basis of: AmTixMyOz where A is an exchangeable cation selected from the group consisting of potassium ion, sodium ion, lithium ion, calcium ion, magnesium ion, hydronium ion or mixtures thereof, and M is optionally at least one framework metal selected from niobium (5+), zirconium (4+), tin (4+), iron (3+), iron (2+), cobalt (2+), and manganese (2+).

The application provides an ion sieve material with excellent water resistance and lithium ion absorption rate. The ion sieve material contains, in terms of percentage by weight, SiO2: 30-45%; Al2O3: 17-30%; Na2O: 30.5-45%; Ln2O3: 0.1-5%, the Ln2O3 being one or more of La2O3, Gd2O3, Y2O3 and Yb2O3. Through reasonable component design, the ion sieve material obtained by the application has excellent water resistance and lithium ion absorption rate, and can be used to extract or absorb impurity metal ions in a molten salt compound, so as to purify the molten salt compound.

The invention discloses a preparation method and application of an N and P modified Ti < 3 > C < 2 > T < x > electrode material, and relates to the field of lithium ion battery negative electrode materials. The preparation method comprises the following steps: 1) uniformly dispersing a prepared Ti < 3 > C < 2 > T < x > material in deionized water, and then performing ultrasonic treatment to obtain a uniform Ti < 3 > C < 2 > T < x > dispersion liquid; 2) adding a compound solution containing N and P into the dispersion liquid, and stirring and mixing; and (3) pouring the mixed solution obtained in the step (2) into a polytetrafluoroethylene reaction kettle lining, carrying out solvothermal reaction, cooling, carrying out centrifugal washing on the obtained sample by adopting deionized water, and carrying out vacuum drying to obtain the N, P-coated Ti3C2Tx material. According to the method, one of urea phosphate, amino trimethylene phosphonic acid and N-bis (phosphine hydroxymethyl) glycine is used as an N and P source, and N and P functional groups are constructed on the surface of the Ti3C2Tx material by adopting a solvothermal method, so that charge distribution on the surface of the material is effectively regulated and controlled, transmission and diffusion of carriers at a material interface are accelerated, the material structure is stabilized, and the lithium ion diffusion performance of the material is improved; the application of the Ti3C2Tx material in the aspect of the negative electrode of the lithium ion battery is promoted.

Provided is an ion sieve material having excellent water resistance and lithium ion absorptivity. The ion sieve material comprises the following components in percentage by weight: 30-45% of SiO2; 17 to 30 percent of Al2O3; 30.5 to 45 percent of Na2O (sodium oxide); the content of Ln2O3 is 0.1 to 5 percent, and the Ln2O3 is one or more of La2O3, Gd2O3, Y2O3 and Yb2O3. Through reasonable component design, the ion sieve material obtained by the invention has excellent water resistance and lithium ion absorptivity, and can be used for extracting or adsorbing impurity metal ions in a molten salt compound so as to purify the molten salt compound.

This invention discloses a rapidly synthesizable chloride solid electrolyte, its preparation method, and its applications. The chloride solid electrolyte of this invention contains anions, cations, and water of crystallization, wherein the anions include Cl... ‑ and at least one of the following ions: F ‑ OH ‑ O 2‑ CO3 2‑ S 2‑ SO4 2‑ PO4 3‑ N 3‑ NO3 3‑ The cation includes Zr. 4+ Li + and at least one of the following ions: H + Ca 2+ Cu 2+ Fe 2+ Mg 2+ Zn 2+ Na + Al 3+ Zr 4+ Fe 3+ Co 2+ Ba 2+ Mn 2+ This invention prepares the chloride solid electrolyte by introducing crystalline hydrates, which improves the lithium-ion conductivity of the chloride solid electrolyte, broadens the electrochemical stability window and the thermodynamic stability potential of the electrolyte, enabling the cathode / electrolyte interface to stably transport lithium ions under high voltage (4.5 V), making it more suitable for high-capacity, high-voltage all-solid-state batteries.

The present invention discloses a sulfonated C4N nanosheet, a preparation method thereof and a solid electrolyte. A composite solid electrolyte contains polyethylene oxide, a nanofiller and a lithium salt, wherein the nanofiller is a sulfonated C4N nanosheet. The composite solid electrolyte of the present invention innovatively uses a small amount of sulfonated C4N nanosheet as an organic nanofiller, and the SO3H functional group of the sulfonated C4N nanosheet can interact with the ether oxygen on the PEO segment, so that the nanofiller is well compatible with the PEO polymer at the molecular level. In addition, the sulfonated C4N nanosheet can be evenly dispersed in the polymer matrix, overcoming the problem that the inorganic nanofiller is easy to agglomerate. Adding an appropriate amount of sulfonated C4N nanosheet can produce more amorphous regions to improve the mobility of the polymer segment, which is conducive to promoting the rapid conduction of lithium ions. In addition, adding sulfonated C4N nanosheets can well toughen the PEO electrolyte and obtain better thermal stability.

Electrolyte fluid comprising at least 0.01 wt% of an additive selected from a compound of formula (I), formula (II), formula (III) and formula (IV): wherein, if the additive is the compound of formula (I), m is an integer equal to or greater than 1 and equal to or less than 9, and M+ is selected from an alkali metal ion, a quaternary ammonium ion, an imidazole ion and a quaternary phosphonium ion; if the additive is the compound of formula (II), m is an integer equal to or greater than 1 and equal to or less than 9, n is an integer equal to or greater than 1 and equal to or less than 9, and M+ is selected from an alkali metal ion, a quaternary ammonium ion, an imidazole ion and a quaternary phosphonium ion;and if the additive is the compound of formula (III), m is an integer equal to or greater than 1 and equal to or less than 9, n is an integer equal to or greater than 1 and equal to or less than 9, p is an integer equal to or greater than 1 and equal to or less than 9, and M+ is selected from an alkali metal ion, a quaternary ammonium ion, an imidazole ion, and a quaternary phosphonium ion; and if the additive is the compound of formula (IV), m is an integer equal to or greater than 1 and equal to or less than 9, n is an integer equal to or greater than 1 and equal to or less than 9, p is an integer equal to or greater than 1 and equal to or less than 9, q is an integer equal to or greater than 1 and equal to or less than 9, and M+ is selected from an alkali metal ion, a quaternary ammonium ion, an imidazole ion, and a quaternary phosphonium ion.

A niobium-containing silver-germanium sulfide-type solid electrolyte composition with enhanced air stability and enhanced dendrite suppression is described. The niobium-containing silver-germanium sulfide-type solid electrolyte composition comprises a silver-germanium sulfide-type crystal structure and the general formula Li. 5.5 (P 1‑i Nb i (S) 4.5‑ j O j )X 1.5 Co-substituted argyrophthalite-type solid electrolyte particles, wherein: X is at least one halogen; i is in the range of 0.01 to 0.12; and j is in the range of 0.01 to 0.6. Co-substituted argyrophthalite-type solid electrolyte particles can be used in electrochemical cells, such as all-solid-state lithium-ion batteries or semi-solid-state lithium-ion batteries. In some aspects, the co-substituted particles are formed from niobium oxide, lithium sulfide, phosphorus pentasulfide, and lithium halide. Additionally or alternatively, the co-substituted particles are formed by ball milling.