摘要:
The invention relates to a method for producing phosphates and/or compounds containing phosphates, in particular alkaline-earth phosphates, alkaline-earth silicophosphates, and alkaline-earth oxides, comprising the following steps: (a) heating bones and/or fish bones or a composition of said components in a pyrolysis process in the absence of oxygen and under reductive conditions at temperatures between 500 and 1100 °C, wherein among other things high-energy gases, vapors, and carbon are produced, (b) subsequently combusting the carbon produced in step (a) under oxidative conditions in an oxidation step, wherein an inorganic radical of alkaline-earth carbonates, alkaline-earth oxides, and alkaline-earth phosphates is produced.
摘要:
It is to provide a process for producing a phosphate compound capable of producing olivine-type crystalline particles of a phosphate compound excellent in the properties and the reliability, easily at a low cost. Particularly, it is to provide a process for producing a phosphate compound useful as a cathode material for a secondary battery. Solid particles of a compound (Y) having a composition represented by A x M y P 3 O z (wherein the element A is at least one member selected from the group consisting of Li and Na, the element M is at least one member selected from the group consisting of Fe, Mn, Co and Ni, the valency N of the element M satisfies +2 a M b PO w (wherein 0 a M b PO w (wherein A derives from the compound (Y), and M derives from the compounds (Y) and (Z)), by a solid phase reaction.
摘要翻译:它是一种用于制造能够产生具有优异的性能和可靠性的磷酸化合物的橄榄石型晶体颗粒的磷酸盐化合物的方法,很容易以低成本。 具体地讲,它是一种用于制造作为二次电池的正极材料是有用的磷酸化合物的方法。 的化合物(Y)的固体颗粒具有由X M Y P'表示的组合物3 O Z(worin元素A为选自Li和Na中选择的至少一个部件,所述元素M是至少一种选自 选自铁,锰,钴和镍,元素M SATIS外资企业2的n价
摘要:
The present invention relates to lithium aluminum titanium phosphates of the general formula Li 1 +xTi 2 - x A1 x (PO 4 ) 3 , where x is 0.4, to a method for the production thereof, and to the use thereof as solid-state electrolytes in lithium-ion batteries.
摘要:
The present invention relates to a method for producing lithium-aluminium-titanium phosphates with the general formula Li 1+x Ti 2-x Al x (PO 4 ) 3 , where x ≤ 0,4, as well as to the use thereof as solid electrolytes in secondary lithium ion batteries.
摘要:
The present invention relates to a process for the preparation of particles comprising at least one compound according to general formula (I) M1aM2bM3cOoNnFf (I) wherein M1, M2, M3 O, N, F, a, b, c, o, n and f have the following meanings: M1 at least one alkaline metal, M2 at least one transition metal in oxidation state +2, M3 at least one non-metal chosen form S, Se, P, As, Si, Ge and/or B, O oxygen, N nitrogen, F fluorine, a 0.8-4.2, b 0.8-1.9, c 0.8-2.2, o 1.0-8.4, n 0-2.0 and f 0-2.0, wherein a, b, c, o, n and f are chosen to ensure electroneutrality of the compound according to general formula (I), and carbon, comprising at least the following steps: (A) providing an essentially aqueous mixture comprising at least one compound comprising M1, at least one compound comprising M2 having at least partially an oxidation state higher than +2, optionally at least one compound comprising M3, at least one compound comprising N, if present, and/or at least one compound comprising F, if present, at least one polysaccharide comprising glucose having a molecular weight M of at least 50000 g/mol as carbon precursor and at least one reducing agent, (B) drying the mixture provided in step (A), in order to obtain a solid particle and (C) calcining the solid particle obtained from step (B) at a temperature of 300 to 950° C.
摘要:
L'invention concerne un procédé de synthèse d'un matériau constitué de particules d'un composé de formule Li x M 1-y M' y (XO 4 ) n , dans lequel M est un métal de transition, M' représente au moins un métal choisi parmi Mg, Ca, Al et Zn, X, et les indices x, y et n sont choisis de manière à assurer l'électroneutralité du composé. La synthèse est effectuée par mise en équilibre dans les proportions requises d'un mélange comprenant des précurseurs des constituants du composé et réduction dudit mélange par une atmosphère gazeuse réductrice, éventuellement en présence d'une source de carbone.
摘要:
A method of manufacturing a positive electrode active material for lithium ion batteries, comprising: preparing a mixture containing (A) Li 3 PO 4 , or a Li source and a phosphoric acid source, (B) at least one selected from a group of a 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 LiMPO 4 (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 the fine particles of LiMPO 4 (wherein M represents at least one selected from the group of Fe, Mn, Co and Ni) having an average primary particle diameter of 30 to 80 nm by reacting the (A) and the (B) at a high temperature and a high pressure.
摘要:
The invention describes a method for making nano-sized crystalline LiMnPO 4 powder with controlled morphology by direct precipitation at low temperature. It also describes a method for making a carbon coated LiMnPO 4 composite powder with enhanced electrochemical performances. The manufacturing process comprises the steps of: - providing a water-based mixture having at a pH between 6 and 10, containing a dipolar aprotic additive, and Li (I) , Mn (II) and P (V) as precursor components; - heating said water-based mixture to a temperature between 60 °C and its boiling point, thereby precipitating crystalline LiMnPO 4 powder. The above process yields a powder for use as cathode material in Li batteries with high reversible capacity and good rate properties.
摘要:
The invention relates to a rare earth (Ln) phosphate, Ln being either at least one rare earth selected from cerium and terbium, or lanthanum in combination with at least one of the two above-mentioned rare earths, that has a crystalline structure of the rhabdophane type or of the mixed rhabdophane/monazite type with a potassium content of 7000 ppm at most. The phosphate is obtained by the precipitation of a rare earth chloride at a constant pH lower than 2, by calcination at a temperature lower than 500°C and by redispersion in hot water. The invention also relates to a phosphor obtained by the calcination at at least 1000°C of said phosphate.
摘要:
There is disclosed a multi-component system lithium phosphate compound particles having an olivine structure and represented by a general formula of Li Y M1 1-Z M2 Z PO 4 in which M1 is one metal element selected from the group consisting of Fe, Mn and Co, Y is a number satisfying a formula of 0.9 ≤ Y ≤ 1.2, M2 is at least one metal element selected from the group consisting of Mn, Co, Mg, Ti and Al, and Z is an number satisfying a formula of 0