Abstract: A positive electrode according to the present invention is a positive electrode of a lithium ion secondary battery in which a coating film containing a positive electrode active material is pressed against a surface of a positive electrode base material, and the positive electrode active material is a mixture of a first active material containing single particles of lithium composite oxide and a second active material containing secondary particles which are aggregated single particles of lithium composite oxide.

Abstract: Provided is a production method which makes it possible to improve a filling property, with respect to a resin, of a hexagonal boron nitride powder which contains hexagonal boron nitride particles each having a low aspect ratio, while maintaining low thermal conduction anisotropy of the hexagonal boron nitride powder. A method of producing a hexagonal boron nitride powder includes disintegrating, by a means which substantially does not involve pulverization of primary particles, a hexagonal boron nitride raw material powder which contains (i) hexagonal boron nitride particles each having an aspect ratio of 1.5 to 5.0 and (ii) an aggregate that contains hexagonal boron nitride particles each having an aspect ratio of more than 5.0.

Abstract: What is provided is a layered double hydroxide crystal for achieving higher ion-exchange capacity than that of the related art. The layered double hydroxide crystal 1 according to the present embodiment is represented by Formula (1) and composed of a plurality of crystal grains 10 each of which has a lamination structure in which a plurality of plate-shaped crystals (11), (11), . . . are laminated, in which particle sizes of the plurality of crystal grains (10), (10), . . . are uniform on a microscale. [Ni2+1-xFe3+x(OH)2].[(Cl?)X/2]??(1) (Where, 0.25<x?0.

Abstract: There is provided a positive electrode for a lithium-ion rechargeable battery in which it is possible to achieve both exceptional electrical conductivity and adhesion of an electrode active material to a current collector and it is possible to dramatically improve battery characteristics compared to those in the related art. A positive electrode for a lithium-ion rechargeable battery includes a current collector; and an electrode active material-containing layer provided on the current collector, wherein the electrode active material-containing layer contains active material particles and a conductive material that connects the active material particles to each other; wherein the mass ratio of the active material particles:the conductive material:other components in the electrode active material-containing layer is 95 to 99.7:0.

Abstract: A negative electrode active material for a rechargeable battery of the present invention includes a silicon composite composed of a silicon compound and at least one carbon material of graphite, non-graphitizable carbon, and soft carbon, a self-assembled monolayer which covers the surface of the silicon composite and has amino groups, and a carbon compound that is bonded to the self-assembled monolayer via the amino groups and contains carbon atoms as a main component.

Abstract: It is an object to achieve a resin sheet having high thermal conductance and high dielectric strength. Hexagonal boron nitride powder in accordance with an aspect of the present invention includes hexagonal boron nitride agglomerate particles each including agglomerated hexagonal boron nitride primary particles, and has a specific surface area of not less than 0.5 m2/g and not more than 5.0 m2/g. The hexagonal boron nitride primary particles each have a long diameter of not less than 0.6 ?m and not more than 4.0 ?m and an aspect ratio of not less than 1.5 and not more than 5.0.

Abstract: There is provided a positive electrode for a lithium-ion rechargeable battery in which it is possible to achieve both exceptional electrical conductivity and adhesion of an electrode active material to a current collector and it is possible to dramatically improve battery characteristics compared to those in the related art. A positive electrode for a lithium-ion rechargeable battery includes a current collector; and an electrode active material-containing layer provided on the current collector, wherein the electrode active material-containing layer contains active material particles and a conductive material that connects the active material particles to each other; wherein the mass ratio of the active material particles:the conductive material:other components in the electrode active material-containing layer is 95 to 99.7:0.

Abstract: A cathode active material that is able to improve storage characteristics without deteriorating charging and discharging capacity is provided. By mixing lithium nickel containing composite oxide particles comprising a layered rock-salt type crystal structure, a lithium compound, and an alkali metal compound; calcining the mixed powder at a temperature range of 800° C. to 1000° C.; washing and removing alkali metal other than lithium; mixing washed calcined particles with a lithium compound again; calcining the mixture in an oxidizing atmosphere at a temperature range of 600° C. to 800° C., lithium nickel containing composite oxide comprising a layered rock-salt type crystal structure and a peak intensity ratio of (003) plane with respect to (104) plane of 1.2 or more that are obtained by X-ray powder diffraction using Cu-K? ray as an X-ray source is obtained.

Abstract: A cathode active material that is able to improve storage characteristics without deteriorating charging and discharging capacity is provided. By mixing lithium nickel containing composite oxide particles comprising a layered rock-salt type crystal structure, a lithium compound, and an alkali metal compound; calcining the mixed powder at a temperature range of 800° C. to 1000° C.; washing and removing alkali metal other than lithium; mixing washed calcined particles with a lithium compound again; calcining the mixture in an oxidizing atmosphere at a temperature range of 600° C. to 800° C., lithium nickel containing composite oxide comprising a layered rock-salt type crystal structure and a peak intensity ratio of (003) plane with respect to (104) plane of 1.2 or more that are obtained by X-ray powder diffraction using Cu-K? ray as an X-ray source is obtained.

Abstract: A photoelectric conversion device provided with an electron transport layer having an excellent electron transport ability and having an excellent photoelectric conversion efficiency, and electronic equipment provided with such a photoelectric conversion device and having a high reliability are provided. A solar cell, to which the photoelectric conversion device is applied, has a first electrode provided on a substrate, a second electrode arranged opposite to the first electrode and retained on a facing substrate, an electron transport layer provided between these electrodes and positioned on the side of the first electrode, a dye layer being in contact with the electron transport layer, and an electrolyte layer provided between the electron transport layer and the second electrode and being in contact with the dye layer. The electron transport layer includes particles of sodium trititanate.

Abstract: A garnet-type solid electrolyte contains a crystal having (110) face, (1-10) face, (112) face, (1-12) face, and (11-2) face, the garnet-type solid electrolyte being Li7La3Zr2O12. A battery includes a solid electrolyte interposed between a positive and a negative electrode, the solid electrolyte being the garnet-type solid electrolyte. A method of producing a garnet-type solid electrolyte represented by a composition formula Li7La3Zr2O12 and has (110) face, (1-10) face, (112) face, (1-12) face, and (11-2) face as a crystal face, including a step of preparing a lithium-containing compound, a lanthanum-containing compound, and a zirconium-containing compound; a step of mixing these compounds such that a molar ratio among the elements satisfies Li:La:Zr=a:b:c (where a is from 120 to 160, b is from 1 to 5, and c is from 1 to 5); and a step of heating the mixture between 400 and 1,200° C.

Abstract: A photoelectric conversion device provided with an electron transport layer having an excellent electron transport ability and having an excellent photoelectric conversion efficiency, and electronic equipment provided with such a photoelectric conversion device and having a high reliability are provided. A solar cell, to which the photoelectric conversion device is applied, has a first electrode provided on a substrate, a second electrode arranged opposite to the first electrode and retained on a facing substrate, an electron transport layer provided between these electrodes and positioned on the side of the first electrode, a dye layer being in contact with the electron transport layer, and an electrolyte layer provided between the electron transport layer and the second electrode and being in contact with the dye layer. The electron transport layer includes particles of sodium trititanate.

Abstract: A photoelectric conversion device provided with an electron transport layer having an excellent electron transport ability and having an excellent photoelectric conversion efficiency, and electronic equipment provided with such a photoelectric conversion device and having a high reliability are provided. A solar cell, to which the photoelectric conversion device is applied, has a first electrode provided on a substrate, a second electrode arranged opposite to the first electrode and retained on a facing substrate, an electron transport layer provided between these electrodes and positioned on the side of the first electrode, a dye layer being in contact with the electron transport layer, and an electrolyte layer provided between the electron transport layer and the second electrode and being in contact with the dye layer. The electron transport layer is constituted of a monocrystalline material of multiple oxide as a main component thereof.

Abstract: A garnet-type solid electrolyte contains a crystal having (110) face, (1-10) face, (112) face, (1-12) face, and (11-2) face, the garnet-type solid electrolyte being Li7La3Zr2O12. A battery includes a solid electrolyte interposed between a positive and a negative electrode, the solid electrolyte being the garnet-type solid electrolyte. A method of producing a garnet-type solid electrolyte represented by a composition formula Li7La3Zr2O12 and has (110) face, (1-10) face, (112) face, (1-12) face, and (11-2) face as a crystal face, including a step of preparing a lithium-containing compound, a lanthanum-containing compound, and a zirconium-containing compound; a step of mixing these compounds such that a molar ratio among the elements satisfies Li:La:Zr=a:b:c (where a is from 120 to 160, b is from 1 to 5, and c is from 1 to 5); and a step of heating the mixture between 400 and 1,200° C.

Abstract: A photoelectric conversion device provided with an electron transport layer having an excellent electron transport ability and having an excellent photoelectric conversion efficiency, and electronic equipment provided with such a photoelectric conversion device and having a high reliability are provided. A solar cell, to which the photoelectric conversion device is applied, has a first electrode provided on a substrate, a second electrode arranged opposite to the first electrode and retained on a facing substrate, an electron transport layer provided between these electrodes and positioned on the side of the first electrode, a dye layer being in contact with the electron transport layer, and an electrolyte layer provided between the electron transport layer and the second electrode and being in contact with the dye layer. The electron transport layer is constituted of a monocrystalline material of multiple oxide as a main component thereof.

Abstract: An artificial corundum crystal which can be put into practical use at low costs, and a process for producing the same. The artificial corundum crystal has at least one crystal face selected from {113}, {012}, {014}, {113}, {110}, {101}, {116}, {211}, {122}, {214}, {100}, {125}, {223}, {131}, and {312} faces. The process for producing the artificial corundum crystal is by a flux evaporation method of heating a sample containing a raw material and a flux to precipitate a crystal and grow the crystal by use of flux evaporation as a driving force.

Abstract: An artificial corundum crystal which can be put into practical use at low costs, and a process for producing the same. The artificial corundum crystal contains a seed crystal and has at least one crystal face selected from a {113} face, a {012} face, a {104} face, a {110} face, a {101} face, a {116} face, a {211} face, a {122} face, a {214} face, a {100} face, a {125} face, a {223} face, a {131} face, and a {312} face. The process for producing the artificial corundum crystal an artificial corundum crystal having a hexagonally dipyramidal includes forming with a seed crystal by a flux evaporation method of heating a sample containing a raw material and a flux to precipitate a crystal and grow the crystal by use of flux evaporation as a driving force.

Abstract: A corundum crystal formed body having a corundum crystal grown directly on a base material and a production process capable of producing the corundum crystal formed body easily at low costs. The a corundum crystal formed body has a platinum base material and a corundum crystal portion formed on the platinum base material. Further, the process for producing a corundum crystal formed body involves forming a corundum crystal on a platinum base material by a flux evaporation method of heating a sample containing a raw material and a flux to precipitate a crystal. The crystal is grown by use of flux evaporation as a driving force.

Abstract: An artificial corundum crystal which can be put into practical use at low costs, and a process for producing the same. The artificial corundum crystal contains a seed crystal and has at least one crystal face selected from a {113} face, a {012} face, a {104} face, a {110} face, a {101} face, a {116} face, a {211} face, a {122} face, a {214} face, a {100} face, a {125} face, a {223} face, a {131} face, and a {312} face. The process for producing the artificial corundum crystal an artificial corundum crystal having a hexagonally dipyramidal includes forming with a seed crystal by a flux evaporation method of heating a sample containing a raw material and a flux to precipitate a crystal and grow the crystal by use of flux evaporation as a driving force.

Abstract: A corundum crystal formed body having a corundum crystal grown directly on a base material and a production process capable of producing the corundum crystal formed body easily at low costs. The a corundum crystal formed body has a platinum base material and a corundum crystal portion formed on the platinum base material. Further, the process for producing a corundum crystal formed body, involves forming a corundum crystal is formed on a platinum base material by a flux evaporation method of heating a sample containing a raw material and a flux to precipitate a crystal. The crystal is grown by use of flux evaporation as a driving force.