Provided are a hydrogen storage material containing a TiFe-based alloy, a hydrogen storage container including the hydrogen storage material, and a hydrogen supply apparatus including the hydrogen storage container. The hydrogen storage material contains an alloy of an elemental composition represented by Formula (1), in which, in 1000× magnified COMP image of cross section of the alloy obtained by EPMA, 25 or more and 3000 or less pieces of a phase in which R is enriched and that have phase sizes of 0.1 μm or more and 10 μm or less are present in a field of view of 85 μm×120 μm of the COMP image, and an R-enriched phase area ratio of total area SR μm2 of pieces of the phase present in the field of view to area S μm2 of field of view is 0.3% or more and 6.0% or less:
Provided are a hydrogen storage material containing a TiFe-based alloy, a hydrogen storage container including the hydrogen storage material, and a hydrogen supply apparatus including the hydrogen storage container. The hydrogen storage material contains an alloy of an elemental composition represented by Formula (1), in which, in 1000× magnified COMP image of cross section of the alloy obtained by EPMA, 25 or more and 3000 or less pieces of a phase in which R is enriched and that have phase sizes of 0.1 μm or more and 10 μm or less are present in a field of view of 85 μm×120 μm of the COMP image, and an R-enriched phase area ratio of total area SR μm2 of pieces of the phase present in the field of view to area S μm2 of field of view is 0.3% or more and 6.0% or less:
Ti(1−a−b)RaM1bFecMndM2eCf (1).
C01B 3/00 - HydrogenGaseous mixtures containing hydrogenSeparation of hydrogen from mixtures containing itPurification of hydrogen
C22C 30/00 - Alloys containing less than 50% by weight of each constituent
C22C 30/04 - Alloys containing less than 50% by weight of each constituent containing tin or lead
C22F 1/02 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
C22F 1/16 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
F17C 11/00 - Use of gas-solvents or gas-sorbents in vessels
2.
HYDROGEN STORAGE MATERIAL, HYDROGEN STORAGE CONTAINER, AND HYDROGEN SUPPLY DEVICE
Provided are hydrogen storage materials having hydrogen absorption (storage) desorption properties suitable for hydrogen storage in a temperature range of 0° C. or lower. Also provided are a hydrogen storage container containing the hydrogen storage materials, and a hydrogen supply apparatus including the hydrogen storage container. The hydrogen storage materials have an alloy with an elemental composition represented by Formula (1):
Provided are hydrogen storage materials having hydrogen absorption (storage) desorption properties suitable for hydrogen storage in a temperature range of 0° C. or lower. Also provided are a hydrogen storage container containing the hydrogen storage materials, and a hydrogen supply apparatus including the hydrogen storage container. The hydrogen storage materials have an alloy with an elemental composition represented by Formula (1):
Provided are hydrogen storage materials having hydrogen absorption (storage) desorption properties suitable for hydrogen storage in a temperature range of 0° C. or lower. Also provided are a hydrogen storage container containing the hydrogen storage materials, and a hydrogen supply apparatus including the hydrogen storage container. The hydrogen storage materials have an alloy with an elemental composition represented by Formula (1):
in Formula (1), M is at least one kind selected from Mn, Co, and Al and essentially contains Mn, a satisfies 0.00≤a≤0.62, b satisfies 0.20≤b≤0.57, c satisfies 0.17≤c≤0.60, d satisfies 4.50≤d≤5.20, e satisfies 0.15≤e≤0.70, a+b+c=1, c+e satisfies 0.55≤c+e≤1.20, and d+e satisfies 5.13≤d+e≤5.40.
A video presentation unit (120) presents reproduction videos of a plurality of disasters to a user. A disaster experience provision unit (121) provides the user with a virtual experience related to at least one disaster from among the plurality of disasters. A discovery opportunity provision unit (122) provides the user with a virtual environment in which is hidden a dangerous site to be discovered by the user on condition that the video presentation unit (120) has presented the reproduction videos to the user and the disaster experience provision unit (121) has provided the user with the virtual experience.
Hydrogen storage materials being inexpensive and having hydrogen absorption (storage) and desorption properties suitable for hydrogen storage are provided. The hydrogen storage materials have alloys with an elemental composition of Formula (1), a hydrogen storage container containing the hydrogen storage material, and a hydrogen supply apparatus including the hydrogen storage container:
Hydrogen storage materials being inexpensive and having hydrogen absorption (storage) and desorption properties suitable for hydrogen storage are provided. The hydrogen storage materials have alloys with an elemental composition of Formula (1), a hydrogen storage container containing the hydrogen storage material, and a hydrogen supply apparatus including the hydrogen storage container:
LaaCebSmcNidMe (1)
Hydrogen storage materials being inexpensive and having hydrogen absorption (storage) and desorption properties suitable for hydrogen storage are provided. The hydrogen storage materials have alloys with an elemental composition of Formula (1), a hydrogen storage container containing the hydrogen storage material, and a hydrogen supply apparatus including the hydrogen storage container:
LaaCebSmcNidMe (1)
wherein M is Mn or both of Mn and Co, a satisfies 0.60≤a≤0.90, b satisfies 0≤b≤0.30, c satisfies 0.05≤c≤0.25, d satisfies 4.75≤d≤5.20, e satisfies 0.05≤e≤0.40, a+b+c=1, and d+e satisfies 5.10≤d+e≤5.35.
B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
B22F 9/04 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
Provided is: a plate-shaped magnetic refrigeration composite material that has superior moldability, workability to a desired shape, and effective heat exchange capability, and that contains a hydrogenated magnetic refrigeration material having a superior magnetocaloric effect; and a production method thereof. Provided also is a magnetic refrigeration device including the magnetic refrigeration composite material. The plate-shaped magnetic refrigeration composite material contains: a plate-shaped admixture including a hydrogenated LaFeSi-type hydrogenated magnetic refrigeration material having a composition represented by formula (1) and a resin binder; and a metal foil on both the front and back surfaces of the plate-shaped admixture. The magnetic refrigeration device includes this magnetic refrigeration composite material.
H01F 1/01 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials
7.
HYDROGEN STORAGE MATERIAL, HYDROGEN STORAGE CONTAINER AND HYDROGEN SUPPLY DEVICE
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
C22F 1/18 - High-melting or refractory metals or alloys based thereon
B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sinteringApparatus specially adapted therefor
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
8.
HYDROGEN STORAGE MATERIAL, HYDROGEN STORAGE CONTAINER, AND HYDROGEN SUPPLY APPARATUS
Provided is a hydrogen storage material which has hydrogen occlusion (storage) release properties suitable for hydrogen storage purposes even in a temperature range of 0°C or lower. Also provided are: a hydrogen storage container provided with the hydrogen storage material; and a hydrogen supply apparatus provided with the hydrogen storage container. More specifically provided are: a hydrogen storage material containing an alloy having an elemental formula represented by formula (1); a hydrogen storage container provided with the hydrogen storage material; and a hydrogen supply apparatus provided with the hydrogen storage container. [In formula (1), M represents at least one element selected from Mn, Co and Al and essentially contains Mn, and a satisfies the formula: 0.00 ≦ a ≦ 0.62, b satisfies the formula: 0.20 ≦ b ≦ 0.57, c satisfies the formula: 0.17 ≦ c ≦ 0.60, d satisfies the formula: 4.50 ≦ d ≦ 5.20, and e satisfies the formula: 0.15 ≦ e ≦ 0.70, in which a+b+c = 1, c+e satisfies the formula: 0.55 ≦ c+e ≦ 1.20, and d+e satisfies the formula: 5.13 ≦ d+e ≦ 5.40.]
B22F 9/04 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
C22F 1/10 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
9.
Hydrogen storage material, hydrogen storage container, and hydrogen supply apparatus
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
C22F 1/10 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
11.
HoCu-based cold-storage material, and cold-storage device and refrigerating machine each equipped therewith
C09K 5/14 - Solid materials, e.g. powdery or granular
C22C 28/00 - Alloys based on a metal not provided for in groups
F25B 9/00 - Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
C09K 5/08 - Materials not undergoing a change of physical state when used
H01F 1/053 - Alloys characterised by their composition containing rare earth metals
H01F 1/01 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials
12.
HYDROGEN STORAGE MATERIAL, HYDROGEN STORAGE CONTAINER, AND HYDROGEN SUPPLY DEVICE
C01B 3/00 - HydrogenGaseous mixtures containing hydrogenSeparation of hydrogen from mixtures containing itPurification of hydrogen
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
C22F 1/02 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
C22F 1/18 - High-melting or refractory metals or alloys based thereon
C22B 3/24 - Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means by adsorption on solid substances, e.g. by extraction with solid resins
B01J 20/10 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
B01J 20/02 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material
The present invention provides: a hydrogen storage material which is capable of improving the discharge characteristics of a nickel hydrogen secondary battery at low temperatures; and a negative electrode and a nickel hydrogen secondary battery, each of which uses this hydrogen storage material. This hydrogen storage material has a specific composition, while containing hydrogen storage alloy particles and a surface modification substance that adheres to the surfaces of the particles. With respect to the X-ray diffraction pattern of this hydrogen storage material, if the relative intensity of the maximum peak Pmax among the diffraction peaks in the range of 2θ = 42.00° to 44.00° is taken as 100.00%, the relative intensity of the maximum peak P1 in the range of 2θ = 30.35° to 30.65° is from 4.00% to 70.00% (inclusive), the relative intensity of the maximum peak P2 in the range of 2θ = 32.85° to 33.15° is less than 60.00%, and the relative intensity of the maximum peak P3 in the range of 2θ = 51.65° to 51.95° is less than 6.00%.
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
B22F 1/02 - Special treatment of metallic powder, e.g. to facilitate working, to improve properties; Metallic powders per se, e.g. mixtures of particles of different composition comprising coating of the powder
H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
25 - Clothing; footwear; headgear
Goods & Services
Computers; computer peripheral devices; teaching and
instructional apparatus and instruments; electrical and
electronic control apparatus and instruments; electrical
power supplies; sensors [measurement apparatus], other than
for medical use; motion sensors; pressure sensors;
acceleration sensors; temperature sensors; cameras; visual
display units; computer programs for data processing showing
images on the display; computer programs for data
processing; downloadable image files including virtual
reality images; prerecorded magnetic data carriers. Carts. Suits; liveries; haptic clothing.
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
25 - Clothing; footwear; headgear
Goods & Services
Computers; computer peripheral devices; teaching and instructional apparatus and instruments, namely, video displays used as teaching aids; electrical and electronic controls for video displays; electrical power supplies; temperature measuring sensors, pressure measuring sensors, other than for medical use; motion sensors; pressure sensors; acceleration sensors; temperature sensors; cameras; video displays that may be worn on the body; downloadable and recorded computer programs for data processing showing images on a video display; downloadable and recorded computer programs for data processing; downloadable image files including virtual reality images; prerecorded magnetic data carriers featuring virtual reality images Carts Suits; liveries; haptic clothing, namely, gloves, pants, shirts
18.
R-T-B-based magnet material alloy and method for producing the same
14B phase which is a principal phase and R-rich phases which are phases enriched with the R, wherein the principal phase has primary dendrite arms and secondary dendrite arms diverging from the primary dendrite arms, and regions where the secondary dendrite arms have been formed constitute a volume fraction of 2 to 60% of the alloy, whereby excellent coercive force can be ensured in R-T-B-based sintered magnets even when the amount of heavy rare earth elements added to the alloy is reduced. The inter-R-rich phase spacing is preferably at most 3.0 μm, and the volume fraction of chill crystals is preferably at most 1%. Furthermore, the secondary dendrite arm spacing is preferably 0.5 to 2.0 μm, and the ellipsoid aspect ratio of R-rich phase is preferably at most 0.5.
H01F 1/057 - Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
B22F 9/04 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY (Japan)
SANTOKU CORPORATION (Japan)
Inventor
Ogata, Takeshi
Narita, Hirokazu
Tanaka, Mikiya
Murota, Tadatoshi
Abstract
Provided is a method for easily separating a rare earth element contained in an aqueous solution at low cost. A method for separating a rare earth element, which is characterized by comprising: an adsorption step wherein a solution containing rare earth element ions and tetravalent ions of a metal element other than the rare earth element ions is brought into contact with an adsorbent, thereby having the rare earth element ions and the tetravalent ions adsorbed on the adsorbent; a rare earth element ion removal step wherein the adsorbent after the adsorption step is brought into contact with a first acidic aqueous solution, thereby having the rare earth element ions removed from the adsorbent; and a tetravalent ion removal step wherein the adsorbent after the rare earth element ion removal step is brought into contact with a second acidic aqueous solution, thereby having the tetravalent ions removed from the adsorbent. This method for separating a rare earth element is also characterized in that: the adsorbent is composed of a substrate and diglycolamic acid introduced into the substrate; the first acidic aqueous solution is from 0.1 mol/L to 4 mol/L (inclusive) of hydrochloric acid or nitric acid; and the second acidic aqueous solution is from 0.5 mol/L to 10 mol/L (inclusive) of sulfuric acid.
14B phase 3 which is a principal phase, and an R-rich phase (1 and 2) which is a phase enriched with the R, wherein a non-crystalline phase 1 in the R-rich phase has a Ga content (mass %) that is higher than a Ga content (mass %) of a crystalline phase 2 in the R-rich phase. With this, it is possible to enhance the magnetic properties of rare earth magnets that are manufactured from the alloy and reduce variations in the magnetic properties thereof.
H01F 1/057 - Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
C22C 30/00 - Alloys containing less than 50% by weight of each constituent
C22C 1/04 - Making non-ferrous alloys by powder metallurgy
B22F 9/04 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
B22F 3/24 - After-treatment of workpieces or articles
21.
HOCU-BASED COLD-STORAGE MATERIAL, AND COLD-STORAGE DEVICE AND REFRIGERATING MACHINE EACH EQUIPPED THEREWITH
The present invention provides a cold-storage material having a high specific heat especially in the temperature range of 10-25 K and a cold-storage device and a refrigerating machine each equipped with the cold-storage material. Specifically, the present invention provides: an HoCu-based cold-storage material characterized by being represented by general formula (1) HoCu2-xMx (1) [wherein x is 0
Provided are: a negative electrode material which is suitable for use in a negative electrode of an iron-air battery; and a negative electrode and an iron-air battery, each of which uses this negative electrode material. This negative electrode material is composed of base material particles and a surface modification substance which adheres to the surfaces of the base material particles; the base material particles contain from 30% by atom to 100% by atom (inclusive) of Fe; and the surface modification substance contains from 20% by atom to 100% by atom (inclusive) of Cu. The mass ratio of the surface modification substance to 100% by mass of the base material particles is 0.001% by mass or more but less than 30% by mass.
The present invention provides: a regenerator material having a high specific heat in a temperature range equal to or higher than 10 K (particularly a temperature range from 10 to 20 K); and a regenerator and a refrigerator each of which is provided with the regenerator material. More specifically, the present invention provides: a rare earth regenerator material characterized by being represented by general formula (1): Er1-xRxNi1+α (1) [wherein x represents a value satisfying the formula: 0 < x < 1; α represents a value satisfying the formula: -1 < α < 1; and R represents at least one element selected from Y and lanthanoid elements (excluding Er); and a regenerator and a refrigerator each of which is provided with the regenerator material.
Provided are: a cooling storage material of which the filling rate can be improved and falls within a proper range, and which can facilitate the reduction in pressure loss of a refrigerant gas in a cooling storage device; and a method for producing the cooling storage material. The cooling storage material according to the present invention comprises a sintered product of grains each containing a rare earth element, wherein the porosity of the sintered product is 30 to 40%. The method for producing a cooling storage material according to the present invention comprises a step of sintering raw material grains each containing a rare earth element, wherein the raw material grains have a D50 value of 100 to 320 μm and a D90/D10 ratio of 1.5 to 2.5 (wherein the terms "D10", "D50" and "D90" respectively represent average grain diameters corresponding to 10%, 50% and 90% in the total number of the grains in a grain size distribution curve).
13-type crystal structure, and the M powder containing a metal and/or an alloy and having a melting point of 1090° C. or lower; a step (2) of subjecting the mixture powder A to a heat treatment in a reducing atmosphere at a temperature close to the melting point of the M powder to obtain a sintered body B; and a step (3) of subjecting the sintered body B to a hydrogenation treatment in a hydrogen-containing atmosphere.
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
H01F 1/03 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity
H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
B22F 9/04 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
26.
POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, POSITIVE ELECTRODE USING SAID POSITIVE ELECTRODE ACTIVE MATERIAL, AND SECONDARY BATTERY
Provided are: a positive electrode active material which is capable of exhibiting sufficient discharge capacity and excellent capacity retention rate during high-voltage charging; a positive electrode which uses this positive electrode active material; and a secondary battery. This positive electrode active material is composed of lithium-containing composite oxide particles and a surface modification material adhered to the surfaces of the particles, and has a composition represented by formula (1). The surface modification material contains one or more elements selected from among Al, Mg and M. Lix-yNayCowAlaMgbMcO2+α (1) (In formula (1), x, y, w, a, b, c and α satisfy formulae 0.986 ≤ (x - y) < 1.050, 0 < y ≤ 0.020, 0.996 ≤ x ≤ 1.050, 0.990 ≤ w ≤ 1.015, 0.005 ≤ a ≤ 0.020, 0.001 ≤ b ≤ 0.020, 0.0005 ≤ c ≤ 0.005 and -0.1 ≤ α ≤ 0.1; the ratio of (Li + Na) to (Co + Al + Mg + M), namely (x)/(w + a + b + c) is 0.930 or more but less than 0.990; and M represents one or more elements selected from among Ca, rare earth elements, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Fe, Ni, Cu, Ag, Zn, B, Ga, C, Si, Sn, N, P, S, F, Cl and H.)
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
27.
MAGNESIUM-LITHIUM ALLOY, AND MAGNESIUM AIR BATTERY
The purpose of the present invention is to provide a magnesium-lithium alloy suitable for use in the negative electrode of an air battery, a negative electrode using said alloy, and a magnesium air battery. This magnesium-lithium alloy comprises greater than 10.50 mass% and less than or equal to 19.50 mass% of Li, 0-15.00 mass% of Al, 0-5.00 mass% of Ca, 0-3.00 mass% of Zn, 0-3.00 mass% of R, 0-2.00 mass% of Mn, 0-0.10 mass% of Fe, 0-0.10 mass% of Cu, 0-0.10 mass% of Ni, with the remainder being Mg and unavoidable impurities, wherein R represents one or more rare earth elements selected from Y, La, Ce, Nd and Gd.
H01M 4/46 - Alloys based on magnesium or aluminium
H01M 12/06 - Hybrid cellsManufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
28.
MAGNESIUM-LITHIUM ALLOY, AND MAGNESIUM AIR BATTERY
A magnesium-lithium alloy suitable for use in the negative electrode of an air battery, a negative electrode using said alloy, and a magnesium air battery are provided. This magnesium-lithium alloy comprises 6.00-10.50 mass% of Li, 0-15.00 mass% of Al, 0-5.00 mass% of Ca, 0-3.00 mass% of Zn, 0-3.00 mass% of R, 0-2.00 mass% of Mn, 0-0.10 mass% of Fe, 0-0.10 mass% of Cu, 0-0.10 mass% of Ni, with the remainder being Mg and unavoidable impurities, wherein R represents one or more rare earth elements selected from Y, La, Ce, Nd and Gd, and the content ratio of the total of R and Mn is 0.02-5.00 mass%.
H01M 12/06 - Hybrid cellsManufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
29.
Magnesium-lithium alloy, rolled stock made of magnesium-lithium alloy, and processed product including magnesium-lithium alloy as material
According to one implementation, a magnesium-lithium alloy contains not less than 10.50 mass % and not more than 16.00 mass % lithium, not less than 5.00 mass % and not more than 12.00 mass % aluminum, and not less than 2.00 mass % and not more than 8.00 mass % calcium. According to one implementation, a rolled stock is made of the above-mentioned magnesium-lithium alloy. According to one implementation, a processed product includes the above-mentioned magnesium-lithium alloy as a material.
14B main phase and a boundary phase, the Fe content in the boundary phase is not more than 10 mass %, and a ratio of the total content (b) of Dy and Tb in the boundary phase to the total content (a) of Dy and Tb in the main phase is higher than 1.0, and are useful as a sintered magnet material.
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
B22F 3/16 - Both compacting and sintering in successive or repeated steps
B22F 9/04 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
B22F 9/22 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using chemical processes with reduction of metal compounds starting from solid metal compounds using gaseous reductors
B22D 11/06 - Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
C22C 38/10 - Ferrous alloys, e.g. steel alloys containing cobalt
C22C 38/16 - Ferrous alloys, e.g. steel alloys containing copper
C22C 38/28 - Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
C23C 10/20 - Solid state diffusion of only metal elements or silicon into metallic material surfaces using liquids, e.g. salt baths, liquid suspensions only one element being diffused
C23C 16/06 - Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of metallic material
C23C 16/44 - Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
H01F 1/057 - Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
A Pd-supporting Zr-based composite oxide characterized by comprising a Zr-containing composite oxide support and Pd supported thereon and by showing, upon XAFS (X-ray absorption fine structure) analysis, a maximum peak in a Pd bond distance range of 2.500-3.500 Å, the maximum peak being located in a position of 3.050-3.110 Å.
B01J 23/63 - Platinum group metals with rare earths or actinides
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
Provided is a steam reforming catalyst wherein a catalyst containing Ni and Ti is supported by a catalyst carrier that is formed of a complex oxide which contains Ce and Zr with the Ce content ratio being from 1.0 mole to 3.0 moles (inclusive) per 1 mole of Zr. If the total amount of Ni and Ti is taken as 100 mol%, the content ratio of Ni is from 70 mol% to 97 mol% (inclusive) and the content ratio of Ti is from 3 mol% to 30 mol% (inclusive).
B01J 23/83 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups with rare earths or actinides
C01B 3/40 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts characterised by the catalyst
33.
CARBON DIOXIDE ADSORBENT MATERIAL AND MOLDED BODY CONTAINING SAME
This carbon dioxide adsorbent material contains a first carbon dioxide adsorbent such as CeO2 and a second carbon dioxide adsorbent such as a zeolite. The weight ratio of the second carbon dioxide adsorbent relative to the first carbon dioxide adsorbent is 0.04-0.7. By using two types of carbon dioxide adsorbent at the specified weight ratio, this carbon dioxide adsorbent material exhibits excellent moldability and carbon dioxide adsorption characteristics. The carbon dioxide adsorbent material can easily form a molded body without carrying out a high temperature heat treatment such as sintering, or a binding treatment using a conventional binder.
B01J 20/02 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material
34.
METHOD FOR PRODUCING RARE EARTH OXYSULFIDE, RARE EARTH OXYSULFIDE, AND REGENERATOR MATERIAL
Provided are: a method for producing a rare earth oxysulfide, the method including a step (1) for obtaining a mixture A by mixing a sulfate ion source, a solvent, and a rare earth oxide that includes a rare earth element R in a mixture ratio (molar ratio) such that the amount of sulfate ion per mol of rare earth element R is 0.6-0.7 mol, a step (2-A) for obtaining a precipitate by heat-treating the mixture A for two hours or longer at 98°C or higher, and a step (3) for obtaining R2O2S by reducing the precipitate in a reducing atmosphere at 600-100°C; and a rare earth oxysulfide obtained by this method. Also provided is a regenerator material including this rare earth oxysulfide.
C04B 35/547 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on sulfides or selenides
C09K 5/14 - Solid materials, e.g. powdery or granular
35.
Positive-electrode active material powder, positive electrode containing positive-electrode active material powder, and secondary battery
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
H01M 4/02 - Electrodes composed of, or comprising, active material
This manufacturing method for magnetic freezing module comprises: a step (1) in which a mixed powder A is prepared, said mixed powder containing an La (Fe, Si)13 alloy powder having a NaZn13 crystalline structure as the main phase thereof, a powder M comprising a metal and or alloy thereof, the metal having a melting point not exceeding 1090°C, and an organic binder as necessary; a step (2) in which a mixed powder A is heat-treated in the vicinity of the melting point of the powder M in a reducing atmosphere, to obtain a sintered compact B, and a step (3) in which the sintered compact B is hydrogenated in a hydrogen-containing atmosphere.
B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sinteringApparatus specially adapted therefor
This Mg-Li alloy contains more than 10.50% by mass but 16.00% by mass or less of Li, from 2.00% by mass to 15.00% by mass (inclusive) of Al and 0.03% by mass or more but less than 1.10% by mass of Mn, with the balance made up of Mg and impurities; and the impurities contain Fe at a concentration of 15 ppm or less. If necessary, this Mg-Li alloy also contains at least one M element that is selected from the group consisting of more than 0% by mass but 3.00% by mass or less of Ca, more than 0% by mass but 3.00% by mass or less of Zn, more than 0% by mass but 1.00% by mass or less of Si, more than 0% by mass but 1.00% by mass or less of Y and more than 0% by mass but 5.00% by mass or less of a rare earth metal element having an atomic number of 57-71. This alloy is useful for shaped articles such as automobile components and cases for portable audio devices, digital cameras, mobile phones, notebook computers and the like.
B21B 3/00 - Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences
C22C 23/02 - Alloys based on magnesium with aluminium as the next major constituent
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
C22F 1/06 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon
38.
R-T-B-based magnet material alloy and method for producing the same
14B phase which is a principal phase and R-rich phases which are phases enriched with the R, wherein the principal phase has primary dendrite arms and secondary dendrite arms diverging from the primary dendrite arms, and regions where the secondary dendrite arms have been formed constitute a volume fraction of 2 to 60% of the alloy, whereby excellent coercive force can be ensured in R-T-B-based sintered magnets even when the amount of heavy rare earth elements added to the alloy is reduced. The inter-R-rich phase spacing is preferably at most 3.0 μm, and the volume fraction of chill crystals is preferably at most 1%. Furthermore, the secondary dendrite arm spacing is preferably 0.5 to 2.0 μm, and the ellipsoid aspect ratio of R-rich phase is preferably at most 0.5.
H01F 1/057 - Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
B22F 9/04 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
Provided is a crimping device with which bidirectional crimping joining is possible and the height of which can be reduced. A crimping device (101) is provided with: a first cylinder (12); a first punch part (21) that is provided on the first cylinder and can move back and forth along the extension/retraction direction of the first cylinder; a first die part (23) provided facing the first punch part; a second cylinder (13); a second punch part (22) that is provided on the second cylinder via a link member (17) capable of moving around a pivot and is capable of back-and-forth movement; and a second die part (24) provided facing the second punch part. The second cylinder is disposed parallel on the side of the first cylinder. The link member transmits the movement of the second cylinder to the second punch part such that the second punch part moves in a direction different from the extension/retraction direction of the second cylinder.
B21D 39/03 - Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by platingTube expanders of sheet metal otherwise than by folding
B30B 1/32 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure
Provided are: a cast rare earth-containing alloy sheet useful in manufacturing a sintered magnet in which both excellent Br and HcJ can be established in a well-balanced manner according to Dy and/or Tb content; and a sintered magnet using same. This cast rare earth-containing alloy sheet is a R-TM-A-M-type cast alloy sheet: which has a specific composition and has an organizational structure with Nd2Fe14B main phases and grain boundary phases; and in which the Fe amount in the grain boundary phases is 10 mass% or less and the ratio of the total Dy and Tb content (b) in the grain boundary phases to the total Dy and Tb content (a) in the main phases is greater than 1.0. The cast alloy sheet is useful as a sintered magnet material.
B22D 11/06 - Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
C22C 33/02 - Making ferrous alloys by powder metallurgy
H01F 1/057 - Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
H01F 1/08 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
42.
POSITIVE-ELECTRODE ACTIVE MATERIAL POWDER, POSITIVE ELECTRODE CONTAINING POSITIVE-ELECTRODE ACTIVE MATERIAL POWDER, AND SECONDARY BATTERY
Provided is a positive-electrode active material powder or positive electrode that can improve the cycling characteristics of a non-aqueous electrolyte secondary battery that is under high voltage and can demonstrate excellent capacity retention. The positive-electrode active material powder of the present invention has a composition indicated by formula (I), Lix-wNawCo1-yMyO2+z (wherein 0.950≤x≤1.100, 0
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
43.
Negative electrode for lithium-ion secondary battery
Provided are an anode active material for lithium ion rechargeable batteries and an anode, which are capable, when used in a lithium ion rechargeable battery, of providing excellent charge/discharge capacity and cycle characteristics, and also high rate performance, as well as a lithium ion rechargeable battery using the same. The anode active material contains particles having a crystal phase represented by RAx, wherein R is at least one element selected from the group consisting of rare earth elements including Sc and Y but excluding La, A is Si and/or Ge, and x satisfies 1.0≤x≤2.0, and a crystal phase consisting of A. The material is thus useful as an anode material for lithium ion rechargeable batteries.
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
H01M 4/1395 - Processes of manufacture of electrodes based on metals, Si or alloys
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
H01M 4/02 - Electrodes composed of, or comprising, active material
44.
POSITIVE-ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS-ELECTROLYTE SECONDARY BATTERY, AND POSITIVE ELECTRODE AND SECONDARY BATTERY USING SAID POSITIVE-ELECTRODE ACTIVE MATERIAL
This invention provides the following: a positive-electrode active material that results in improved crystal-structure stability during continuous charging or high-voltage charging of a nonaqueous-electrolyte secondary battery, excellent cycle characteristics (capacity retention ratio), and a high capacity; and a positive electrode and nonaqueous-electrolyte secondary battery using said positive-electrode active material. This positive-electrode active material consists of lithium-containing complex-oxide particles, the composition of which can be represented by formula (1) (in which x, y, w, a, b, c, and α represent specific numbers and M represents one or more elements selected from among calcium, yttrium, the rare-earth elements, titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, manganese, iron, nickel, copper, silver, zinc, boron, gallium, carbon, silicon, tin, nitrogen, phosphorus, sulfur, fluorine, and chlorine), with a compound containing one or more elements selected from among aluminum, magnesium, and the aforementioned elements adhering to the surfaces of said lithium-containing complex-oxide particles. The abovementioned positive electrode and nonaqueous-electrolyte secondary battery use said positive-electrode active material. (1) Lix−yNayCowAlaMgbMcO2+α
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
0.5/α where Δt is an amount of adjustment of the molten alloy temperature (° C.); ΔRa is an amount of change (μm) in the arithmetic mean roughness Ra; ΔSm is an amount of change (μm) in the mean spacing of profile irregularities Sm; and α is a correlation coefficient.
B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
B22D 11/00 - Continuous casting of metals, i.e. casting in indefinite lengths
B22D 11/06 - Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
46.
Alloy flake production apparatus and production method for raw material alloy flakes for rare earth magnet using the apparatus
An alloy flake production apparatus (1) includes a crystallinity control device (2) for controlling an alloy crystal structure of fed alloy flakes to a desired state, a cooling device (3) for cooling the alloy flakes discharged from the crystallinity control device (2), and a chamber for keeping these devices under reduced pressure or under an inert gas atmosphere. The crystallinity control device (2) has a rotary heating drum (21) in a cylindrical shape for heating the fed alloy flakes, and a switching device (23) for switching between storage and discharge of the alloy flakes fed to an inner wall side of the heating drum (21), so that long-time heat treatment is uniformly applied to the alloy flakes immediately after being made by ingot crushing. The heating drum (21) preferably has a scooping blade plate (22) for scooping up alloy flakes fed to the inner wall side with its rotation.
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
B22F 9/04 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
H01F 1/057 - Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY (Japan)
Inventor
Ohguri Nobuaki
Takano Hiroshi
Murota Tadatoshi
Matsuda Motofumi
Takeguchi Tatsuya
Abstract
Provided are: a positive electrode catalyst which is capable of reducing reaction overvoltage at the positive electrode; and a device. A positive electrode catalyst of the present invention contains a layered metal oxide. A device of the present invention is provided with a positive electrode and a negative electrode, and the positive electrode is formed using a positive electrode catalyst that contains a layered metal oxide. It is preferable that the layered metal oxide is a Ruddlesden-Popper type layered perovskite.
B01J 23/78 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups with alkali- or alkaline earth metals or beryllium
C25B 1/04 - Hydrogen or oxygen by electrolysis of water
C25B 9/00 - Cells or assemblies of cellsConstructional parts of cellsAssemblies of constructional parts, e.g. electrode-diaphragm assembliesProcess-related cell features
C25B 11/06 - Electrodes; Manufacture thereof not otherwise provided for characterised by the material by the catalytic materials used
H01M 12/06 - Hybrid cellsManufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
H01M 12/08 - Hybrid cellsManufacture thereof composed of a half-cell of a fuel-cell type and a half-cell of the secondary-cell type
48.
Alloy flakes as starting material for rare earth sintered magnet and method for producing same
Provided are raw material alloy flakes for a rare earth sintered magnet and a method for producing the same. The alloy flakes have a roll-cooled face, and (1) contain at least one R selected from rare earth metal elements including Y, B, and the balance M including iron, at a particular ratio; (2) as observed in a micrograph at a magnification of 100× of its roll-cooled face, have not less than 5 crystals each of which is a dendrite grown radially from a point of crystal nucleation, and crosses a line segment corresponding to 880 μm; and (3) as observed in a micrograph at a magnification of 200× of its section taken generally perpendicularly to its roll-cooled face, have an average distance between R-rich phases of not less than 1 μm and less than 10 μm.
H01F 1/20 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder
B22D 11/00 - Continuous casting of metals, i.e. casting in indefinite lengths
C22C 38/10 - Ferrous alloys, e.g. steel alloys containing cobalt
C22C 38/16 - Ferrous alloys, e.g. steel alloys containing copper
H01F 1/057 - Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
B22D 11/06 - Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
C22C 38/10 - Ferrous alloys, e.g. steel alloys containing cobalt
H01F 1/01 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials
C22C 38/14 - Ferrous alloys, e.g. steel alloys containing titanium or zirconium
F25B 21/00 - Machines, plants or systems, using electric or magnetic effects
C22C 33/02 - Making ferrous alloys by powder metallurgy
50.
METHOD FOR PRODUCING COMPOSITE OXIDE AND COMPOSITE OXIDE CATALYST
Provided are a method for producing a composite oxide, said composite oxide showing a high conversion ratio of hydrogen carbide to hydrogen even after oxidation and being usable as a catalyst starting material with good handling properties, and a catalyst. The aforesaid method comprises: step (a) for preparing an aqueous Ce solution, in which 80 mol% or more of Ce ions are tetravalent, and an aqueous Zr solution containing Zr ions; step (b1) for mixing a portion of the aqueous Ce solution with the aqueous Zr solution to give a mixed aqueous solution (X1); step (c1) for hydrothermally treating said (X1); step (b2) for adding the remainder of the aqueous Ce solution prepared in step (a) to a colloidal composite salt-containing solution (Y1) that is obtained in step (c1) to give a colloidal composite salt-containing solution (Y2); step (c2) for hydrothermally treating said (Y2) obtained in step (b2); step (d) for mixing a colloidal composite salt-containing solution (Y3) that is obtained in step (c2), an aqueous alkali solution and a surfactant to give a precipitate; and step (e) for baking the precipitate.
B01J 23/89 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with noble metals
B01J 37/10 - Heat treatment in the presence of water, e.g. steam
C01B 3/40 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts characterised by the catalyst
51.
ALL-SOLID-STATE LITHIUM ION BATTERY AND POSITIVE ELECTRODE MIXTURE
A positive electrode mixture which contains a positive electrode active material that is represented by formula (1) and a solid electrolyte that contains Li and S. aLi2MnO3-bLiNi1-yM1yO2-cLiM2vM3wM4xO2 (1) (In the formula, M1 represents one or more elements that are selected from among Co, Mn, Al, Fe, Cu, V, Zn and Cr; each of M2, M3 and M4 represents one or more elements that are selected from among Ni, Co, Mn, Al, Fe, Cu, V, Zn and Cr, and M2, M3 and M4 respectively represent elements different from each other; a, b and c satisfy a + b + c = 1, 0 < a < 1, 0 < b < 1, and 0 < c < 1; y satisfies 0 ≤ y ≤ 1; and v, w and x satisfy v + w + x = 1, 0 ≤ v ≤ 1, 0 ≤ w ≤ 1 and 0 ≤ x ≤ 1.)
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
F25B 21/00 - Machines, plants or systems, using electric or magnetic effects
H01F 1/01 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials
NATIONAL UNIVERSITY CORPORATION TOTTORI UNIVERSITY (Japan)
SANTOKU CORPORATION (Japan)
Inventor
Sakaguchi Hiroki
Usui Hiroyuki
Murota Tadatoshi
Kusatsu Masatoshi
Abstract
Provided are: a negative electrode active material which is to be used in a lithium-ion secondary battery, and capable of exhibiting excellent charging/discharging capacity and cycling properties, and also capable of obtaining excellent rate properties, when used in a lithium-ion secondary battery; a negative electrode; and a lithium-ion secondary battery using the negative electrode active material and the negative electrode. This negative electrode active material contains particles having a crystal phase represented by RAx (R is at least one type of rare-earth element selected from a group of rare-earth elements including Sc and Y, and excluding La; A is Si and/or Ge; x is 1.0≤x≦2.0), and a crystal phase comprising A, and is consequently useful as a negative electrode material for a lithium-ion secondary battery.
d, and has at its outermost surface a Mg-rich/Ni-poor region having a composition with a Mg molar ratio higher than that in formula (1) and a Ni molar ratio lower than that in formula (1), and has inside a Mg/Ni-containing region having a composition with a Mg molar ratio lower than and a Ni molar ratio higher than those in the Mg-rich/Ni-poor region.
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
C22F 1/10 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
C22C 1/04 - Making non-ferrous alloys by powder metallurgy
Provided are a hydrogen absorption alloy powder, a negative electrode, and a nickel-hydrogen secondary cell, capable of simultaneously possessing excellent initial activity and cycle properties as well as low temperature properties, which are trade-offs in a nickel-hydrogen secondary cell. The alloy powder is characterized in having a composition expressed by the formula R1-aMgaNibAlcMd (where R includes rare earth elements and similar, including Sc and Y; 0.005≤a≤0.40; 3.00≤b≤4.50; 0≤c≤0.50; 0≤d≤1.00; and 3.00≤b+c+d≤4.50), the arithmetic average roughness (Ra) of the outer surface of the powder being at least 2 µm and the crushing strength of the powder being no more than 35,000 gf/mm2.
Provided are alloy flakes for rare earth sintered magnet, which achieve a high rare earth component yield after pulverization with respect to before pulverization and a uniform particle size after pulverization, and a method for producing such alloy at high energy efficiency in an industrial scale. The method includes (A) preparing an alloy melt containing R composed of at least one element selected from rare earth metal elements including Y, B, and the balance M composed of Fe, or of Fe and at least one element selected from transition metal elements other than Fe, Si, and C, (B) rapidly cooling/solidifying the alloy melt to not lower than 700° C. and not higher than 1000° C. by strip casting with a cooling roll, and (C) heating and maintaining, in a particular temperature range, alloy flakes separated from the roll by rapid cooling and solidifying in step (B) before the flakes are cooled to not higher than 500° C., to obtain alloy flakes having a composition of 27.0 to 33.0 mass % R, 0.90 to 1.30 mass % boron, and the balance M.
B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
B22D 11/00 - Continuous casting of metals, i.e. casting in indefinite lengths
C22C 38/10 - Ferrous alloys, e.g. steel alloys containing cobalt
C22C 38/16 - Ferrous alloys, e.g. steel alloys containing copper
B22D 11/06 - Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
C22C 33/02 - Making ferrous alloys by powder metallurgy
H01F 1/057 - Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
57.
Process for production of (rare earth)-Mg-Ni-based hydrogen storage alloy
A safe and industrially advantageous production method is disclosed for producing a rare earth-Mg—Ni based hydrogen storage alloy which realizes production of a nickel-hydrogen rechargeable battery having excellent cycle characteristics and a large capacity. The method is for producing a rare earth-Mg—Ni based hydrogen storage alloy including element A, Mg, and element B, wherein element A is composed of at least one element R selected from rare earth elements including Sc and Y, and optionally at least one element selected from Zr, Hf, and Ca, and element B is composed of Ni and optionally at least one element selected from elements other than element A and Mg. The method includes first step of mixing an alloy consisting of elements A and B and Mg metal and/or a Mg-containing alloy having a melting point not higher than the melting point of Mg metal, and second step of heat-treating a mixture obtained from first step for 0.5 to 240 hours at a temperature 5 to 250° C. lower than a melting point of the rare earth-Mg—Ni based hydrogen storage alloy to be obtained.
H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
B22F 9/04 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
C22F 1/10 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
C01B 3/00 - HydrogenGaseous mixtures containing hydrogenSeparation of hydrogen from mixtures containing itPurification of hydrogen
Provided is a composite oxide which is suitable for use as, for example, a promoter for exhaust gas purification catalysts and which has high heat resistance and an excellent ability to absorb and release oxygen at low temperatures. The composite oxide contains Ce and Zr, the proportions of the Ce and the Zr being 30-80 at.% and 20-70 at.%, respectively, relative to the sum of the Ce and the Zr, which is taken as 100 at.%, or further contains a specific element M, the proportions of the Ce, Zr, and element M being 30-80 at.%, excluding 80 at.%, 20-70 at.%, excluding 70 at.%, and 0-15 at.%, excluding 0 at.%, respectively, relative to the sum of the Ce, Zr, and element M, which is taken as 100 at.%. The composite oxide has a phase of a CaF2-type structure or a phase of a structure akin to CaF2, and the ratio of the actual value of the lattice constant of the (311) plane to the theoretical value of the lattice constant is 1.000. The composite oxide has the property of having a total pore volume of 0.30 cc/g or higher after burned at 1,000°C for 5 hours in the air.
Provided are alloy flakes to be used as a starting material for a rare earth sintered magnet, said alloy flakes showing regulated formation of chill crystals, having a highly uniform shape of the 2-14-1 main phase and showing a highly uniform dispersion state of the R-rich phase, and a method for producing the same. The alloy flakes according to the present invention satisfy the following requirements (1) to (3) and have roll-cooled surface that is obtained by a strip casting method using cooling rolls: (1) comprising at least one member (R) that is selected from rare earth metal elements including Y, B and the balance (M) containing iron, each at a specific ratio; (2) in a microscopic image (100 × magnification) of the roll-cooled surface, having 5 or more crystals that have a specific aspect ratio and a specific particle diameter, in which dendrites grow in a circular pattern around the originating point of a crystal nucleus crossing a line segment corresponding to 880 μm; and (3) in a microscopic image (200 × magnification) of a cross section roughly perpendicular to the roll-cooled surface, the average interval of the R-rich phase being 1 μm or longer and shorter than 10 μm.
B22D 11/06 - Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
B22D 11/00 - Continuous casting of metals, i.e. casting in indefinite lengths
Provided is a magnetic refrigeration material that has a Curie temperature equal to or higher than 250K and that drastically exceeds conventional refrigeration performance in a range of up to almost 2 Tesla at which a magnetic field is considered changeable with a permanent magnet. The magnetic refrigeration material is expressed by the formula La1-fREf (Fe1-a-b-c-d-eSiaCobXcYdZe)13 (RE: at least one element among rare earth elements such as Sc and Y, excluding La; X: Ga and/or Al; Y: at least one element selected from among Ge, Sn, B, and C; Z: at least one element selected from among Ti, V, Cr, Mn, Ni, Cu, Zn, and Zr; and 0.03≤a≤0.17, 0.003≤b≤0.06, 0.02≤c≤0.10, 0≤d≤0.04, 0≤e≤0.04, and 0≤f≤0.50). The magnetic refrigeration material exhibits physical properties such as an average crystal grain size between 0.01µm and 3µm, a Curie temperature equal to or higher than 250K, and a maximum value (-∆Smax) of magnetic entropy change (-∆SM) that is equal to or greater than 5J/kgK in response to a change of magnetic field up to 2 Tesla.
Provided is a safe and efficient method for producing lithium metal which facilitates efficient production of anhydrous lithium chloride without corrosion of the system materials by chlorine gas or molten lithium carbonate, and which allows production of lithium metal by molten salt electrolysis of the produced anhydrous lithium chloride as a raw material. The method includes the steps of (A) contacting and reacting lithium carbonate and chlorine gas in a dry process to produce anhydrous lithium chloride, and (B) subjecting the raw material for electrolysis containing the anhydrous lithium chloride to molten salt electrolysis under such conditions as to produce lithium metal, wherein the chlorine gas generated by the molten salt electrolysis in step (B) is used as the chlorine gas in step (A) to continuously perform steps (A) and (B).
NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY (Japan)
Inventor
Matsuda Motofumi
Murota Tadatoshi
Takeguchi Tatsuya
Abstract
Provided is a solid electrolyte using a composite oxide improving ion-conductivity useful for obtaining the high electromotive force and high current-voltage characteristics of a fuel battery, having a large amount of intercalated water and hydroxyl group that can sufficiently suppress electron-conductivity, and having an RP structure, and also provided are a solid electrolyte membrane, a fuel battery cell, and a fuel battery. The solid electrolyte and the solid electrolyte membrane according to the present invention are obtained by performing a treatment in which at least either hydroxylation or hydration is performed on a specific composite oxide having the RP structure or the membrane thereof. The solid electrolyte and the solid electrolyte membrane exhibit physical properties in which the masses obtained by a TG measurement at 400 °C decrease by 4.0% or more in comparison with the masses obtained by the TG measurement at 250 °C.
H01B 1/06 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of other non-metallic substances
H01M 8/12 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
Provided is a magnetic refrigeration material that drastically exceeds conventional refrigeration performance at a Curie temperature close to or higher than room temperature and a density as high as almost 2 Tesla, below which a magnetic field is considered changeable with a permanent magnet. This magnetic refrigeration material is made of a composition expressed by formula La1-fREf (Fe1-a-b-c-d-eSiaCobXcYdZe)13 (RE: at least one kind of rare-earth element including Sc and Y with the exclusion of La; X: Ga and/or Al; Y: at least one kind selected from among Ge, Sn, B, and C; and Z: at least one kind selected from among Ti, V, Cr, Mn, Ni, Cu, Zn, and Zr. 0.03 ≤ a ≤ 0.17, 0.003 ≤ b ≤ 0.06, 0.02 ≤ c ≤ 0.10, 0 ≤ d ≤ 0.04, 0 ≤ e ≤ 0.04, 0 ≤ f ≤ 0.50), and which exhibits the Tc being between 220K and 276K and the maximum value (-ΔSmax) of the magnetic entropy change amount (-ΔSM) with respect to a magnetic field change up to 2 Tesla being 5J/kgK or higher.
C22F 1/06 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon
C23C 22/06 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6
C23C 22/68 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous solutions with pH between 6 and 8
C23C 22/34 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing fluorides or complex fluorides
C23C 22/78 - Pretreatment of the material to be coated
65.
Magnesium-lithium alloy, rolled material, formed article, and process for producing same
The present invention provides a magnesium-lithium alloy having both corrosion resistance and cold workability balanced at high levels, a certain degree of tensile strength, and very light weight, as well as a rolled material and a formed article made of this alloy. The alloy of the invention contains not less than 10.5 mass % and not more than 16.0 mass % Li, not less than 0.50 mass % and not more than 1.50 mass % Al, and the balance of Mg, and has an average crystal grain size of not smaller than 5 μm and not larger than 40 μm, and a tensile strength of not lower than 150 MPa or a Vickers hardness (HV) of not lower than 50.
C22F 1/06 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon
C23C 22/34 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing fluorides or complex fluorides
C23C 22/78 - Pretreatment of the material to be coated
Provided is a catalyst which mitigates problems concerning the cost and supply of catalysts and which attains a high degree of reforming of hydrocarbons into hydrogen even after having been oxidized. The catalyst is easy to, for example, handle. Also provided are a catalyst for hydrocarbon steam reforming and a process for producing that catalyst. These catalysts are characterized in that one or more catalyst metals comprising Ni have been loaded into a composite oxide that has a composition which comprises R (R is Ce or both Ce and Pr), Zr, and oxygen and in which when the total amount of the elements other than oxygen is taken as 100 mol%, then the amount of R is 10-90 mol%, the amount of Zr is 10-90 mol%, and the amount of M (M is one or more elements other than oxygen, R, and Zr) is 0-20 mol%, and that has a specific surface area of 11-90 m2/g, the composite oxide, when analyzed by Raman spectroscopy, showing a maximum peak in the wavelength range of 200-800 cm-1, the maximum peak having a half-value width of 20-72 cm-1.
B01J 23/76 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups
B01J 23/89 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with noble metals
B01J 35/10 - Solids characterised by their surface properties or porosity
H01M 8/06 - Combination of fuel cells with means for production of reactants or for treatment of residues
67.
HYDROGEN-ABSORBING ALLOY POWDER, NEGATIVE ELECTRODE, AND NICKEL HYDROGEN SECONDARY BATTERY
Provided are: a hydrogen-absorbing alloy powder, whereby it becomes possible to achieve all of excellent initial activity, excellent discharge capacity and excellent cycle properties which have a trade-off relationship with one another in a nickel hydrogen secondary battery; a negative electrode for nickel hydrogen secondary batteries, which is produced using the hydrogen-absorbing alloy powder; and a nickel hydrogen secondary battery. The hydrogen-absorbing alloy has a specific chemical composition represented by formula (1): R1-aMgaNibAlcMd, and has an Mg-rich Ni-poor region on the outermost surface thereof and an Mg-Ni-containing region in the inside thereof, wherein the Mg-rich Ni-poor region contains Mg at a larger molar ratio than the molar ratio of Mg in formula (1) and contains Ni at a smaller molar ratio than the molar ratio of Ni in formula (1), and wherein the Mg-Ni-containing region contains Mg in a smaller molar ratio than the molar ratio of Mg in the Mg-rich Ni-poor region and contains Ni at a larger molar ratio than the molar ratio of Ni in the Mg-rich Ni-poor region.
C22F 1/10 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
68.
HYDROGEN ABSORBING ALLOY, NEGATIVE POLE, AND NICKEL-HYDROGEN SECONDARY BATTERY
Provided are: a hydrogen absorbing alloy which suppresses elution of Co, Mn, and Al etc. to an alkali electrolyte, is highly corrosion resistant, and can be industrially produced with fewer costs by reducing Co; a nickel-hydrogen secondary-battery negative pole in which the hydrogen absorbing alloy is used; and a nickel-hydrogen secondary battery provided with the negative pole. The hydrogen absorbing alloy of the present invention comprises: a CaCu5 type crystal phase as the main phase; a composition expressed by RNiaCobAlcMndSneMf (R denotes an element including at least one lanthanoid element including Y, R essentially includes La, M denotes at least one element of Ti, Zr, Fe, Cu, and Nb, 3.70≤a≤5.10, 0
H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
B22F 9/04 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
C22F 1/02 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
C22F 1/10 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
69.
METHOD FOR PRODUCING ALLOY CAST SLAB FOR RARE EARTH SINTERED MAGNET
Disclosed are: an alloy cast slab for a rare earth sintered magnet, which has high rare earth component yield between before and after pulverization, while having uniform particle size after pulverization; and a method which is capable of commercially producing the alloy at high energy efficiency. The production method comprises: a step (A) for preparing an alloy melt that contains B, Fe and R that is composed of at least one element selected from rare earth metal elements including Y or alternatively contains Fe and at least one element selected from among transition metal elements other than Fe, Si and C, with the balance made up of M; a step (B) for quenching and solidifying the alloy melt to a temperature range of 700-1,000˚C (inclusive) by a strip casting method using a cooling roll; and a step (C) for heating and maintaining an alloy cast slab, which is separated from the cooling roll by the quenching and solidification of the step (B), within a specific temperature range before the alloy cast slab is cooled to 500˚C or less. By the production method, an alloy cast slab that has a composition containing 27.0-33.0% by mass of R and 0.90-1.30% by mass of boron with the balance made up of M is obtained.
B22D 11/06 - Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
B22D 11/00 - Continuous casting of metals, i.e. casting in indefinite lengths
B22F 9/04 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
Disclosed is a process for producing a (rare earth)-Mg-Ni-based hydrogen storage alloy that enables the production of a nickel hydrogen secondary battery having excellent cycle properties and high capacity, in a safe and industrially advantageous manner. Specifically disclosed is a process for producing a (rare earth)-Mg-Ni-based hydrogen storage alloy that contains an element (A), Mg and an element (B), wherein the element (A) comprises at least one element (R) selected from rare earth elements including Sc and Y and at least one arbitral element selected from Zr, Hf and Ca, the element (B) comprises Ni and at least one arbitral element other than the element (A) or Mg. The process comprises: a first step of mixing an alloy comprising the element (A) and the element (B) with metal Mg and/or an Mg-containing alloy having a melting point equal to or lower than that of metal Mg to produce a mixture; and a second step of heating the mixture at a temperature that is lower by 5 to 250˚C than the melting point of the finished (rare earth)-Mg-Ni-based hydrogen storage alloy for 0.5 to 240 hours.
NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY (Japan)
Inventor
Matsuda Motofumi
Murota Tadatoshi
Takeguchi Tatsuya
Ueda Wataru
Abstract
Disclosed are: a solid electrolyte membrane which is useful for achieving a high electromotive force in a fuel cell; and a fuel battery cell which is equipped with the solid electrolyte membrane. The solid electrolyte membrane comprises a base material comprising a sheet-like material and having multiple orifices that penetrate through the sheet-like material in the direction of the thickness of the sheet-like material and a solid electrolyte layer formed on at least one surface of the base material. The fuel battery cell comprises a solid electrolyte membrane comprising a base material and a solid electrolyte layer formed on one surface of the base material, and a catalyst layer containing a noble metal and formed on the other surface of the base material, wherein the solid electrolyte layer and the catalyst layer are in contact with each other in orifices formed in the base material.
An extremely lightweight magnesium-lithium alloy which has both high corrosion resistance and high cold workability and has a certain degree of tensile strength, and a rolled material and a formed article each obtained from the alloy. The alloy comprises 10.5-16.0 mass% Li, 0.50-1.50 mass% Al, and Mg as the remainder, has an average crystal-grain diameter of 5-40 µm, and either has a tensile strength of 150 MPa or higher or has a Vickers hardness (HV) of 50 or higher.
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
C22F 1/06 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon
73.
MAGNESIUM-LITHIUM ALLOY, ROLLED MATERIAL, MOLDED ARTICLE, AND PROCESS FOR PRODUCING SAME
Provided is a magnesium-lithium alloy which contains 10.5-16.0 mass% Li and 0.50-1.50 mass% Al, the remainder comprising Mg, and which has an average crystal grain diameter of 5-40 µm and a tensile strength of 150 MPa or higher. When a probe including two cylindrical pins in which the distance between the pins is 10 mm and the pin tips have a diameter of 2 mm (contact surface area per pin, 3.14 mm2) is pressed against the surface of the alloy under a load of 240 g, then the surface electrical resistance measured with the ammeter is 1 Ω or less. This alloy is an extremely lightweight alloy which combines corrosion resistance and cold workability on a high level, has a certain degree of tensile strength, and has a reduced surface electrical resistance. Also provided are a rolled material and a molded article both comprising the alloy and a process for producing the alloy.
C22F 1/06 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon
C23C 22/34 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing fluorides or complex fluorides
C23C 22/78 - Pretreatment of the material to be coated
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
74.
MAGNESIUM-LITHIUM ALLOY AND SURFACE TREATMENT METHOD THEREFOR
Disclosed are a method for forming a coating film having low surface electrical resistance and moreover having excellent bare corrosion resistance and performance as surface for painting, and a magnesium-lithium alloy obtained thereby. The surface treatment method for the magnesium-lithium alloy has a step for treating the surface of a magnesium-lithium alloy material with a low-electrical-resistance treatment fluid that is an inorganic acid containing metal ions at 0.021-0.47 g/L in terms of aluminum, and 0.0004-0.029 g/L in terms of zinc. The surface treatment method for the magnesium-lithium alloy further has a coating-film-formation treatment step for immersing in a 3.33-40 g/L aqueous solution of acidic ammonium fluoride after performing surface adjustment.
C23C 22/78 - Pretreatment of the material to be coated
C23C 22/34 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing fluorides or complex fluorides
Disclosed is an all-solid-state lithium battery having excellent output properties. The battery comprises a positive electrode, an electrolyte layer and a negative electrode, wherein the positive electrode comprises a positive electrode active material represented by formula (1) and a sulfide-type solid electrolyte and the electrolyte layer comprises a sulfide-type solid electrolyte. LiaNibCocMndMeOf+σ (1) [In the formula, 1.01 ≤ a ≤ 1.05; f: 2 or 4; σ: -0.2 to 0.2 inclusive; M: Mg, Ca, Y, a rare earth element, or the like; 0 ≤ b ≤ 1, 0 ≤ c ≤ 1, 0 ≤ d ≤ 1, 0 ≤ e ≤ 0.5, and b+c+d+e = 1 when f = 2; and 0 ≤ b ≤ 2, 0 ≤ c ≤ 2, 0 ≤ d ≤ 2, 0 ≤ e ≤ 1, and b+c+d+e = 2 when f = 4.]
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
Provided are a very lightweight magnesium-lithium alloy having high levels of both corrosion resistance and cold workability and a certain tensile strength, a rolled material and a molded article. The alloy contains from 10.5 mass% to 16.0 mass% Li and from 0.50 mass% to 1.50 mass% Al with the remainder comprising Mg. The alloy has a mean crystal grain diameter from 5 µm to 40 μm, a tensile strength of at least 150 MPa and a Vickers hardness (HV) of at least 50.
C22F 1/06 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon
Disclosed is a composite oxide that can absorb and release a large amount of oxygen in a broad temperature range and can particularly realize a large amount of absorption and release of oxygen in a high temperature range of 700°C or above and/or in a low temperature range of 400°C or below. The composite oxide contains oxygen, R comprising at least one of Ce and Pr, and Zr in a specific ratio, optionally contains at least one M selected from alkaline earth metals and the like, and is free from a tetragonal crystal phase derived from zirconium oxide. The electron diffraction image of the composite oxide exhibits a diffraction image having dot-shaped diffraction spots and the composite oxide can be utilized in co-catalysts for exhaust gas purification catalysts and oxygen reduction catalysts for fuel cells.
Disclosed is a compound having an olivine-type structure, which enables to produce a battery having high capacity, high output and excellent rate characteristics. Also disclosed are a positive electrode for nonaqueous electrolyte secondary batteries, which is produced by using such a compound, and a nonaqueous electrolyte secondary battery comprising such a positive electrode. Specifically disclosed is a compound containing at least lithium, a transition metal, phosphorus and oxygen, such as LiFePO4. The compound has an olivine-type structure and hardly contains a crystal phase other than one with olivine-type structure, while having a specific surface area of not less than 4 m2/g. This compound is useful as a positive electrode active material for nonaqueous electrolyte secondary batteries.
H01M 4/48 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
H01M 4/52 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H01M 10/36 - Accumulators not provided for in groups
79.
POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, POSITIVE ELECTRODE AND SECONDARY BATTERY
Disclosed is a positive electrode active material for nonaqueous electrolyte secondary batteries, which enables to produce a battery having high-load characteristics with stable quality. This positive electrode active material for nonaqueous electrolyte secondary batteries also enables to produce a battery having high capacity. Also disclosed are a positive electrode for nonaqueous electrolyte secondary batteries and a nonaqueous electrolyte secondary battery. The positive electrode active material contains a secondary particle composed of a plurality of primary particles and/or a single crystal particle, and has an average number A represented by the formula (1) below of not less than 1 but not more than 10 and a specific surface area of not less than 0.20 m2/g but less than 0.50 m2/g. A = (m + p)/(m + s) (1) (In the formula, m represents the number of single crystal particles; p represents the number of primary particles constituting secondary particles; and s represents the number of secondary particles.)
This invention provides a process for producing metallic lithium, which can avoid the corrosion of apparatus materials by a chlorine gas and a molten salt of lithium carbonate, can realize the production of anhydrous lithium chloride with good efficiency, and can produce metallic lithium by a molten salt electrolytic process using the resultant anhydrous lithium chloride as a starting material in a safe and highly efficient manner. The production process comprises a step (A) of catalytically reacting lithium carbonate with chlorine gas by a dry process and a step (B) of subjecting the material for electrolysis containing anhydrous lithium chloride to molten salt electrolysis under metallic lithium production conditions. In this case, chlorine gas evolved in the molten salt electrolysis in the step (B) is utilized as chlorine gas used in the step (A), and the steps (A) and (B) are continuously carried out.
A method of recovering useful materials from a scrap of a rare earth-iron-boron magnet by which iron and boron can be recovered as ferroboron from the rare earth-iron-boron magnet scrap and the rare earth element can be efficiently recovered as an oxide. The recovery method comprises: a step in which the rare earth-iron-boron magnet scrap is oxidized in an oxygen-containing atmosphere; a step in which a mixture for thermit reaction comprising the oxidized magnet scrap and aluminum and/or an aluminum alloy is prepared; a step in which the mixture for thermit reaction is caused to undergo thermit reaction in order to yield ferroboron and a slag; and a step in which the ferroboron and slag obtained by the thermit reaction are separated.
C22B 61/00 - Obtaining metals not elsewhere provided for in this subclass
H01F 41/00 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
01 - Chemical and biological materials for industrial, scientific and agricultural use
06 - Common metals and ores; objects made of metal
Goods & Services
Chemicals, namely, lithium chemicals, metallic oxides, carbonates, nitrates, metallic hydroxides, metallic halides, sulphates and phosphates used in industry and science; chemicals, namely, rare earth metals, mischmetals, lithium, all used for further manufacture Common metals and their alloys; alloys that are a combination of common metals and rare earth metals; lithium alloys
