Abstract: The present invention relates to a gallium-doped phosphocalcic compound of formula (I): Ca(10.5-1.5x)Gax(PO4)7, wherein 0<x<1 and the salts, hydrates and mixtures thereof. The invention further relates to a solid state process in solution for the manufacture of such compounds and the use thereof for the preparation of a biomaterial, in particular a self-setting calcium-phosphate cement (CPC).

Abstract: A phosphate based compound basically comprising—A: exchangeable cations used in charging and discharging, e.g. Li, Na, K, Ag, —B: non-exchangeable cations from the transition metals, group 3-12 of the periodic table of elements, e.g. Fe, Mn, Co, Cr, Ti, V, Cu, Sc, —C: 60 Mol-%-90 Mol-%, preferably 75 Mol-% of the compound being phosphate (PO4)3? anions, where oxygen is or may be partially substituted by a halide (e.g. F, Cl) and/or OH? to a maximum concentration of 10 Mol-% of the oxygen of the anions and wherein said (PO4)3? coordination polyhedra may be partially substituted by one or more of: SiO44 silicate, BO33? borate, CO32? carbonate, H2O water up to a maximum amount of <31 Mol-% of the anions, said compound being in crystalline form and having open elongate channels extending through the unit cell of the structure and with the compound being present either in single crystal form or as an anisotropic microcrystalline or nanocrystalline material.

Abstract: A process for preparing an at least partially lithiated transition metal oxyanion-based lithium-ion reversible electrode material, which includes providing a precursor of said lithium-ion reversible electrode material, heating said precursor, melting same at a temperature sufficient to produce a melt including an oxyanion containing liquid phase, cooling said melt under conditions to induce solidification thereof and obtain a solid electrode that is capable of reversible lithium ion deinsertion/insertion cycles for use in a lithium battery. Also, lithiated or partially lithiated oxyanion-based-lithium-ion reversible electrode materials obtained by the aforesaid process.

Abstract: In one aspect of the invention, methods of synthesizing iron phosphate precursors and lithium iron phosphate active material usable for a lithium secondary battery include the steps of first forming fine particle iron phosphate precursors hydrated and anhydrous, then forming electrode active material lithium iron phosphate with said iron phosphate precursors. The unique methods are generally efficient and cost effective, as well as stable and scalable for a high performance electrode active material with high capacity, good discharge profile, high electronic conductivity, as well as long cycle life.

Abstract: The invention relates to a crystallized solid, denoted by the name IM-16, which has an X-ray diffraction pattern as provided hereinafter. Said solid has a chemical composition expressed in accordance with the empirical formula mXO2:nGeO2:pZ2O3:qR:sF:wH2O, where R represents one or more organic species, X represents one or more tetravalent elements different from germanium, Z represents at least one trivalent element and F is fluorine.

Abstract: The invention relates to materials for use as electrodes in an alkali-ion secondary (rechargeable) battery, particularly a lithium-ion battery. The invention provides transition-metal compounds having the ordered-olivine or the rhombohedral NASICON structure and the polyanion (PO4)3? as at least one constituent for use as electrode material for alkali-ion rechargeable batteries.

Abstract: This invention relates generally to electrode materials, electrochemical cells employing such materials, and methods of synthesizing such materials. The electrode materials have a crystal structure with a high ratio of Li to metal M, which is found to improve capacity by enabling the transfer of a greater amount of lithium per metal, and which is also found to improve stability by retaining a sufficient amount of lithium after charging. Furthermore, synthesis techniques are presented which result in improved charge and discharge capacities and reduced particle sizes of the electrode materials.

Abstract: A process for the production of iron (III) orthophosphate of the general formula FePO4×nH2O (n?2.5) comprising: a) producing an aqueous solution containing Fe2+ ions by introducing, iron (II), iron (III) or mixed iron (II, III) compounds selected from hydroxides, oxides, oxide hydroxides, oxide hydrates, carbonates and hydroxide carbonates, together with elementary iron, into a phosphoric acid-bearing aqueous medium, to dissolve Fe2+ ions and to react Fe3+ with elementary Fe in a comproportionation reaction to give Fe2+; b) separating solids from the phosphoric-acid aqueous Fe2+ solution, and c) adding an oxidation agent to the phosphoric-acid aqueous Fe2+ solution to oxidize iron (II) in the solution to precipitate iron (III) orthophosphate of the general formula FePO4×nH2O. The invention includes the product of the process and its use to make LiFePO4 for batteries.

Abstract: A method for producing lithium iron phosphate includes: an aqueous solution preparing step of preparing an aqueous solution containing a phosphoric acid and a carboxylic acid; a first forming step of adding iron particles containing 0.5 mass % or more of oxygen to the aqueous solution, and making the phosphoric acid and the carboxylic acid and the iron particles react with each other in the aqueous solution under an oxidizing atmosphere, to form a first reaction liquid is formed by; the second forming step of adding a lithium source to the first reaction liquid obtained in the synthesizing step to form a second reaction liquid; the precursor forming step of drying the second reaction liquid to form a lithium iron phosphate precursor; and the primary baking step of baking the lithium iron phosphate precursor under a non-oxidizing atmosphere thus obtaining lithium iron phosphate.

Abstract: Compounds (I) AaMm(YO4)yZz (I) are provided where A is at least one element selected from the alkaline metals, alkaline earth metals, a doping element and a hole, M being (T1-1TV), T being one or more transition metals and T? being at least on element selected from Mg, Ca, Al, and the rare earths, 0?t<1; Y is a least one element selected from S, Se, P, As, Si, or Ge and A1; Z is at least one element selected from F, O or OH; a, m, y, and z are whole numbers of zero or above such that the electric neutrality of the inorganic oxide of formula (I) is respected, a?O; m>O; y>0; z?O. The compounds (I) are obtained from precursors of the constituent elements by means of a method comprising the following steps: dispersion of said precursors in a liquid support comprising one or more ionic liquids made up of a cation and an anion the electric charges of which balance out to give a suspension of said precursors in said liquid, heating said suspension to a temperature of 25 to 380° C.

Abstract: For production of NASICON type lithium iron phosphate particles, it is desired to increase the uniformity of the particle size and the chemical composition and further to improve the crystallinity. A process for producing lithium iron phosphate particles, which comprises a step of obtaining a melt containing, as represented by mol % based on oxides, from 1 to 50% of Li2O, from 20 to 50% of Fe2O3 and from 30 to 60% of P2O5; a step of cooling and solidifying the melt; a step of pulverizing the solidified product into a desired particle shape, and a step of heating the pulverized product in the air or under oxidizing conditions (0.21<oxygen partial pressure?1.0) at from 350 to 800° C. to precipitate crystals of LinFe2(PO4)3 (0<n?3), in this order.

Abstract: A method of manufacturing a positive electrode active material for lithium ion batteries, comprising: preparing a mixture containing (A) Li3PO4, or a Li source and a phosphoric acid source, (B) at least one selected from a group of an Fe source, a Mn source, a Co source and a Ni source, water and an aqueous organic solvent having a boiling point of 150° C. or more, wherein the amounts of (A) and (B) in the mixture are adjusted to amounts necessary to manufacture therefrom LiMPO4, wherein M represents at least one selected from the group of Fe, Mn, Co and Ni, at a concentration of 0.5 to 1.5 mol/L; and generating fine particles of LiMPO4 having an average primary particle diameter of 30 to 80 nm by reacting (A) and (B) at a high temperature and high pressure.

Abstract: It is an object to provide a material for an electrode with improved electron conductivity and a power storage device using the material for an electrode. In a process for manufacturing a material for an electrode including a lithium phosphate compound represented by a general formula LiMPO4 having an olivine structure or a lithium silicate compound represented by a general formula Li2MSiO4 having an olivine structure, a metal element having a valence different from that of a metal element represented by M is added. The metal element having a different valence serves as a carrier generation source in the material for an electrode, whereby the electron conductivity of the material for an electrode is improved. By using the material for an electrode with improved electron conductivity as a positive electrode active material, a power storage device with larger discharge capacity is provided.

Abstract: Disclosed is a clean method for preparing layered double hydroxides (LDHs), in which hydroxides of different metals are used as starting materials for production of LDHs by atom-economical reactions. The atom efficiency of the reaction is 100% in each case because all the atoms of the reactants are converted into the target product since only M2+(OH)2, M3+(OH)3, and CO2 or HnAn? are used, without any NaOH or other materials. Since there is no by-product, filtration or washing process is unnecessary. The consequent reduction in water consumption is also beneficial to the environment.

Abstract: This invention provides a type of lithium iron phosphate cathode active material and its method of synthesis. Said cathode active material contains the sintering product of lithium iron phosphate and a mixture. Said mixture comprises of two or more metal oxides where the metal elements are selected from groups II A, III A, IV A, V A, III B, IV B, or V B, and where the weight of one metal oxide is 0.5-20% of the weight of the other metal oxide. Greatly increased capacity can be achieved in rechargeable lithium-ion batteries using the lithium iron phosphate cathode active material provided by this invention.

Abstract: A method is disclosed of treating a porous crystalline molecular sieve having a pore size less than or equal to about 5 Angstroms to decrease its coke selectivity in oxygenate to olefin conversion reactions. The method comprises contacting the molecular sieve with an acid having a kinetic diameter greater than or equal to that of acetic acid.

Abstract: The invention is directed to synthesizing a phosphate-based electrode active material. The method includes the step of reacting two or more starting materials collectively containing at least a PO33? anion, an alkali metal and a metal which is redox active in the final reaction product, at a temperature and for a time sufficient to form the phosphate-based electrode active material.

Abstract: The invention relates to a crystalline ion-conducting material made of LiMPO4 nanoparticles, wherein M is selected from Cr, Mn, Co, Fe and Ni, in addition to mixtures thereof and the nanoparticles have an essentially flat prismatic shape. The invention also relates to a method for producing said type of crystalline ion-conducting material which consists of the following steps: a precursor component is produced in a solution front a lithium compound of a component containing metal ions M and a phosphate compound, the precursor compound is subsequently precipitated from the solution and, optionally, a suspension of the precursor compound is formed, the precursor compound and/or the suspension is dispersed and/or ground, and the precursor compound and/or the suspension is converted under hydrothermal conditions and subsequently, the crystalline material is extracted.

Abstract: A process for preparing an at least partially lithiated transition metal oxyanion-based lithium?ion reversible electrode material, which includes providing a precursor of said lithium-ion reversible electrode material, heating said precursor, melting same at a temperature sufficient to produce a melt including an oxyanion containing liquid phase, cooling said melt under conditions to induce solidification thereof and obtain a solid electrode that is capable of reversible lithium ion deinsertion/insertion cycles for use in a lithium battery. Also, lithiated or partially lithiated oxyanion-based-lithium-ion reversible electrode materials obtained by the aforesaid process.

Abstract: In a method of synthesizing a silicoaluminophosphate molecular sieve, a synthesis mixture is prepared by combining a source of phosphorus and at least one organic directing agent; and then introducing a source of aluminum into the combination of the phosphorus source and organic directing agent, wherein the temperature of the combination is less than or equal to 50° C. when addition of the source of aluminum begins. After addition of a source of silicon, the synthesis mixture is heated to a crystallization temperature of between about 100° C. and about 300° C. and the molecular sieve is recovered.

Abstract: According to the present invention, there is provided a temperature-sensitive aluminum phosphate solution, characterized in that, composition of the aluminum phosphate is within such ranges that 3Al2O3/P2O5 (molar ratio) is from 1.2 to 1.5, M2O/P2O5 (molar ratio) (M is an alkali metal) is from 0.02 to 0.15 and concentration of Al2O3 is from 2 to 8% by mass and the sensing temperature is within a temperature range of from 20 to 100° C. The solution is particularly useful as an antioxidant for carbon materials.

Abstract: The present invention provides for the preparation of an “optimized” VPO4 phase or V—P—O/C precursor. The VPO4 precursor is an amorphous or nanocrystalline powder. The V—P—O/C precursor is amorphous in nature and contains finely divided and dispersed carbon. Throughout the specification it is understood that the VPO4 precursor and the V—P—O/C precursor materials can be used interchangeably to produce the final vanadium phosphates, with the V—P—O/C precursor material being the preferred precursor. The precursors can subsequently be used to make vanadium based electroactive materials and use of such precursor materials offers significant advantages over other processes known for preparing vanadium phosphate compounds.

Abstract: The invention generally relates to methods of selectively removing lithium from various liquids, methods of producing high purity lithium carbonate, methods of producing high purity lithium hydroxide, and methods of regenerating resin.

Abstract: The invention describes a process for producing a compound of the formula LiMPO.sub.4, in which M represents at least one metal from the first transition series, comprising the following steps: a) production of a precursor mixture, containing at least one Li.sup.+ source, at least one M.sup.2+ source and at least one PO.sub.4.sup.3? source, in order to form a precipitate and thereby to produce a precursor suspension; b) dispersing or milling treatment of the precursor mixture and/or the precursor suspension until the D90 value of the particles in the precursor suspension is less than 50 .mu.m; and c) the obtaining of LiMPO.sub.4 from the precursor suspension obtained in accordance with b), preferably by reaction under hydrothermal conditions. The material obtainable by this process has particularly advantageous particle size distributions and electrochemical properties when used in electrodes.

Abstract: The invention relates to a process for obtaining a metalloaluminophosphate (MeAPO) molecular sieve comprising the following steps in the order given: a) providing a homogeneous solution containing sources of at least 2 of the following: aluminium (Al), phosphorous (P), metal (Me); b) adding a first MeAPO molecular sieve to the solution and modifying the pH before and/or after the addition of the first MeAPO molecular sieve to obtain an amorphous precursor; c) separating the amorphous precursor from the water; d) optionally washing and drying at a temperature below 450° C.

Abstract: Disclosed is a method for preparing a lithium metal phosphate represented by the following Formula 1 by using a mixture of a metal (M) with a metal oxide containing the same metal: LixMyPO4??[Formula 1] wherein M is a transition metal element selected from Group 3 to 12 elements in the Periodic Table, Mg, Al, Ga and B; 0.05?x?1.2; and 0.8?y?1.2. Also, an electrode comprising the lithium metal phosphate as an electrode active material, and a secondary battery comprising the electrode are also disclosed.

Abstract: A method is provided for the synthesis of a mesoporous lithium transition metal compound, the method comprising the steps of (i) reacting a lithium salt with one or more transition metal salts in the presence of a surfactant, the surfactant being present in an amount sufficient to form a liquid crystal phase in the reaction mixture (ii) heating the reaction mixture so as to form a sol-gel and (iii) removing the surfactant to leave a mesoporous product. The mesoporous product can be an oxide, a phosphate, a borate or a silicate and optionally, an additional phosphate, borate or silicate reagent can be added at step (i). The reaction mixture can comprise an optional chelating agent and preferably, the reaction conditions at steps (i) and (ii) are controlled so as to prevent destabilisation of the liquid crystal phase. The invention is particularly suitable for producing mesoporous lithium cobalt oxide and lithium iron phosphate.

Abstract: A catalyst for converting methanol to light olefins and the process for making and using the catalyst are disclosed and claimed. SAPO-34 is a specific catalyst that benefits from its preparation in accordance with this invention. A seed material is used in making the catalyst that has a higher content of the EL metal than is found in the principal part of the catalyst. The molecular sieve has predominantly a roughly rectangular parallelepiped morphology crystal structure with a lower fault density and a better selectivity for light olefins.

Abstract: The present invention includes an electrochemical redox active material. The electrochemical redox active material includes a cocrystalline metallic compound having a general formula AxMO4-yXOy.M?O, where A is at least one metallic element selected from a group consisting of alkali metals, M and M? may be identical or different and independently of one another at least one selected from a group consisting of transition metals and semimetals, X is P or As, 0.9?x?1.1, and 0<y<4.

Abstract: Disclosed and described are multi-component inorganic phosphate formulations of acidic phosphate components and basic oxide/hydroxide components. Also disclosed are high solids, atomizable compositions of same, suitable for spray coating.

Abstract: The crystallized glass according to the present invention contains a LiVOPO4 crystal. The LiVOPO4 crystal is preferably a ?-LiVOPO4 crystal. In addition, the crystallized glass according to the present invention preferably contains a composition of Li2O: 25-60%, V2O5: 20-40% and P2O5: 20-40% in terms of mol %. The crystallized glass according to the present invention is suitable as a positive electrode material for lithium ion secondary batteries. The present invention provides a substance suitable as a positive electrode material for a lithium secondary battery having good battery properties and a method for producing the substance.

Abstract: A process for the treatment of phosphoric acid plant pond water where an increased recovery of phosphorus values from the input pond water is achieved through the dilution of the initial pond water with clarified water from the product generation stage and/or the final stage clarified water. The recycle of the product generation stage and/or final stage waters to dilute the feed pond water mitigates or eliminates the problems of silica gel formation and precipitation that occur when undiluted pond waters are processed. In addition, the dilution reduces phosphate losses in the first liming or neutralization stage rejected solids thereby increasing the yield of Di-Calcium Phosphate or ammonium magnesium phosphate or potassium magnesium phosphates.

Abstract: Iron(III) orthophosphate of the general formula FePO4×nH2O (n?2.5), prepared by a process in which iron(II)-, iron(III)- or mixed iron(II, III) compounds selected from among hydroxides, oxides, oxidehydroxides, oxide hydrates, carbonates and hydroxidecarbonates are reacted with phosphoric acid having a concentration in the range from 5% to 50%, any iron(II) present after the reaction is converted into iron(III) by addition of an oxidant and solid iron(III) orthophosphate is separated off from the reaction mixture.

Abstract: A method of synthesizing LiFePO4 compounds and analogs thereof for use in secondary electrodes involves mixing the starting materials and polymerizing the mixture into a gel. The gel form allows thorough milling and mixing of the reagents and results in a smaller and more uniform particle size in the resultant electrode formed and a well crystallized structure based on the X-ray diffraction pattern.

Abstract: Catalyst used in a process for preparing acrolein and acrylic acid at higher yield to convert glycerin to valuable other chemical raw materials. The glycerin dehydration catalyst consists mainly of a compound containing at least one element selected from Mo, W and V, in which protons in the heteropolyacid are exchanged at least partially with at least one cation selected from elements belonging to Group 1 to Group 16 of the Periodic Table of Elements.

Abstract: Nanoscale ion storage materials are provided that exhibit unique properties measurably distinct from their larger scale counterparts. For example, the nanoscale materials can exhibit increased electronic conductivity, improved electromechanical stability, increased rate of intercalation, and/or an extended range of solid solution. Useful nanoscale materials include alkaline transition metal phosphates, such as LiMPO4, where M is one or more transition metals. The nanoscale ion storage materials are useful for producing devices such as high energy and high power storage batteries, battery-capacitor hybrid devices, and high rate electrochromic devices.

Abstract: Solid acid/surface-hydrogen-containing secondary component electrolyte composites, methods of synthesizing such materials, electrochemical device incorporating such materials, and uses of such materials in fuel cells, membrane reactors and hydrogen separations are provided. The stable electrolyte composite material comprises a solid acid component capable of undergoing rotational disorder of oxyanion groups and capable of extended operation at a wide temperature range and a secondary compound with surface hydrogen atoms, which when intimately mixed, results in a composite material with improved conductivity, mechanical and thermal properties, when compared to pure solid acid compound.

Abstract: The present invention relates to a process for producing lithium iron phosphate particles having an olivine type structure, comprising a first step of mixing an iron oxide or an iron oxide hydroxide as an iron raw material which comprises at least one element selected from the group consisting of Na, Mg, Al, Si, Cr, Mn and Ni in an amount of 0.1 to 2 mol % for each element based on Fe, and a carbon element C in an amount of 5 to 10 mol % based on Fe, and has a content of Fe2+ of not more than 40 mol % based on an amount of Fe and an average primary particle diameter of 5 to 300 nm, with a lithium raw material and a phosphorus raw material; a second step of controlling agglomerates diameter in the resulting mixture is 0.3 to 5.0 ?m; and a third step of sintering the mixture obtained in the second step in an inert gas or reducing gas atmosphere having an oxygen concentration of not more than 0.1% at a temperature of 250 to 750° C.

Abstract: The present invention relates to a method for preparing a lithium vanadium phosphate material comprising forming a aqueous slurry (in which some of the components are at least partially dissolved) comprising a polymeric material, an acidic phosphate anion source, a lithium compound, V2O5 and a source of carbon; wet blending said slurry, spray drying said slurry to form a precursor composition; and heating said precursor composition to produce a lithium vanadium phosphate.

Abstract: The first aspect of the present invention provides a method of manufacturing an active material capable of improving the discharge capacity of a lithium-ion secondary battery. The method of manufacturing an active material in accordance with the first aspect of the present invention comprises the steps of heating a phosphate source, a vanadium source, and water so as to form an intermediate containing phosphorus and vanadium and having a specific surface area of at least 0.1 m2/g but less than 25 m2/g; and heating the intermediate, a water-soluble lithium salt, and water. The second aspect of the present invention provides a method of manufacturing an active material capable of improving the rate characteristic of a lithium-ion secondary battery.

Abstract: A silicoaluminophosphate molecular sieve is disclosed that comprises first and second intergrown phases of a CHA framework type and an AEI framework type, wherein said first intergrown phase has an AEI/CHA ratio of from about 5/95 to about 40/60 as determined by DIFFaX analysis, the second intergrown phase has an AEI/CHA ratio of about 30/70 to about as determined by DIFFaX analysis and said molecular sieve has a silica to alumina molar ratio (Si/Al2) from about 0.13 to about 0.24.

Abstract: A process for preparing an at least partially lithiated transition metal oxyanion-based lithium?ion reversible electrode material, which includes providing a precursor of said lithium?ion reversible electrode material, heating said precursor, melting same at a temperature sufficient to produce a melt including an oxyanion containing liquid phase, cooling said melt under conditions to induce solidification thereof and obtain a solid electrode that is capable of reversible lithium ion deinsertion/insertion cycles for use in a lithium battery. Also, lithiated or partially lithiated oxyanion-based-lithium?ion reversible electrode materials obtained by the aforesaid process.

Abstract: In a method of synthesizing an aluminophosphate or metalloaluminophosphate molecular sieve, a synthesis mixture is provided comprising water, a source of aluminum, a source of phosphorus, optionally a source of a metal other than aluminum, a tertiary amine, and an alkylating agent capable of reacting with said tertiary amine to form a quaternary ammonium compound capable of directing the synthesis of said molecular sieve. The synthesis mixture is maintained under conditions sufficient to cause the alkylating agent to react with the tertiary amine to produce the quaternary ammonium compound and to induce crystallization of the molecular sieve.

Abstract: In a method of synthesizing a silicoaluminophosphate molecular sieve, a synthesis mixture is prepared by combining a source of phosphorus and at least one organic directing agent; and then introducing a source of aluminum into the combination of the phosphorus source and organic directing agent, wherein the temperature of the combination is less than or equal to 50° C. when addition of the source of aluminum begins. After addition of a source of silicon, the synthesis mixture is heated to a crystallization temperature of between about 100° C. and about 300° C. and the molecular sieve is recovered.

Abstract: Active materials for rechargeable batteries have a general formula Aa(MO)bM?cXO4 where A represents an alkali metal or mixture of alkali metals, a is greater than about 0.1 and less than or equal to about 2; MO is an ion containing a transition metal M not in its highest oxidation state, M? represents a metal, or mixture of metals, and b is greater than 0 and less than or equal to about 1, c is less than 1 wherein a, b and c are selected so as to maintain the electroneutrality of the compound, and X is phosphorus, arsenic, or sulfur, or mixtures thereof. Preferred active materials are alkali metal vanadyl metal phosphates of general formula Aa(VO)bM?cPO4 where a and b are both greater than 0 and c may be zero or greater. New synthetic routes are provided to alkali metal mixed metal phosphates where at least one of the starting materials is a metal-oxo group (MO)3+, where M represents a metal in a +5 oxidation state.

Abstract: Compositions and processes of for forming the same are described. In some embodiments, the compositions include lithium-based compounds which may be used as electrode materials in electrochemical cells including batteries.

Abstract: A method for manufacturing an active material comprising: a hydrothermal synthesis step of heating under pressure, a mixture containing a lithium source, a vanadium source, a phosphoric acid source, water and a water-soluble polymer having a weight average molecular weight of from 200 to 100,000, wherein the ratio of the total mole number of repeating units of the whole water-soluble polymer to the mole number of the vanadium atoms is from 0.02 to 1.0, to produce a precursor of LiVOPO4 having a ?-type crystal structure; and a firing step of heating the precursor of LiVOPO4 having a ?-type crystal structure to obtain LiVOPO4 having a ?-type crystal structure.

Abstract: An active material which can improve the discharge capacity of a lithium-ion secondary battery is provided. The active material of the present invention contains a rod-shaped particle group having a ?-type crystal structure of LiVOPO4. The particle group has an average minor axis length S of 1 to 5 ?m, an average major axis length L of 2 to 20 ?m, and L/S of 2 to 10.

Abstract: Methods of manufacturing an active material capable of improving the discharge capacity of a lithium-ion secondary battery are provided. The first method of manufacturing an active material comprises a hydrothermal synthesis step of heating a mixture containing a lithium source, a phosphate source, a vanadium source, water, and a reducing agent to 100 to 195° C. under pressure; and a heat treatment step of heating the mixture to 500 to 700° C. after the hydrothermal synthesis step. The hydrothermal synthesis step adjusts the ratio [P]/[V] of the number of moles of phosphorus [P] contained in the mixture before heating to the number of moles of vanadium [V] contained in the mixture before heating to 0.9 to 1.2. The second method of manufacturing an active material comprises a hydrothermal synthesis step of heating a mixture containing a lithium source, a phosphate source, a vanadium source, water, and a reducing agent to 200 to 300° C.

Abstract: The present invention relates to a nanoparticulate composition comprising nanoparticles with a particle-size distribution of d90?10 ?m, and optionally a surface-active agent. The present invention further relates to a method for the production of such a nanoparticulate composition.