Sumitomo Osaka Cement

Osaka, Japan

Sumitomo Osaka Cement

Osaka, Japan
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A method for producing titanium oxide particles of the present invention includes a step of producing a mixed solution by mixing a hydrolysis product of a titanium alkoxide or a titanium metal salt and a compound having a five-membered ring containing nitrogen and a step of generating titanium oxide fine particles by heating and pressurizing the mixed solution. Titanium oxide particles of the present invention are produced by the method for producing titanium oxide particles of the present invention. A dispersion solution of titanium oxide particles of the present invention includes the titanium oxide particles of the present invention. Titanium oxide paste of the present invention includes the titanium oxide particles of the present invention, a solvent, and a binder. A titanium oxide film of the present invention is obtained by applying and calcinating the titanium oxide paste of the present invention. A dye-sensitized solar cell of the present invention includes a conductive substrate, a photosemiconductor electrode carrying a sensitizing dye, a counter electrode, and an electrolyte, and the photosemiconductor electrode has the titanium oxide film of the present invention.


An electrode material for a lithium-ion rechargeable battery of the present invention is an electrode material for a lithium-ion rechargeable battery formed by coating a surface of an electrode active material represented by General Formula LiFe_(x)Mn_(1-x-y)M_(y)PO_(4) (here, M represents at least one element selected from Mg, Ca, Co, Sr, Ba, Ti, Zn, B, Al, Ga, In, Si, Ge, and rare earth elements, 0.05x1.0, 0y0.14) with a carbonaceous film, in which an angle of repose is in a range of 35 or more and 50 or less.


A porous semiconductor layer contains anatase-type titanium oxide particles (A) which have an average primary particle size of 1 nm to 70 nm, and particles (B) obtained by coating surfaces of rutile-type titanium oxide particles, which have an average primary particle size of 100 nm to 1,000 nm, with an insulating material.


Provided are a silicon oxide-coated zinc oxide, a method for producing the same, a composition and a cosmetic including a silicon oxide-coated zinc oxide. The silicon oxide-coated zinc oxide is a silicon oxide-coated zinc oxide formed by coating surfaces of zinc oxide particles with a silicon oxide coat, in which an average particle diameter of the zinc oxide particles is in a range of more than 50 nm and 500 nm or less, and, when an abundance ratio of silicon in the silicon oxide coat in a Q^(3) environment is indicated by Q^(3), and an abundance ratio in a Q^(4) environment is indicated by Q^(4), Q^(3)+Q^(4)0.6 and Q^(4)/(Q^(3)+Q^(4))0.5 are satisfied.


Provided are an electrode material for a lithium-ion rechargeable battery including core particles of an active material and a carbonaceous film, in which a powder resistance is 150 cm or less, and a lithium-ion rechargeable battery produced using the electrode material and a lithiummetal exhibits a difference between a sum of a charge capacity with an upper limit voltage of 4.2 V and the lithium-ion rechargeable battery charged at a constant current and a charge capacity with the lithium-ion rechargeable battery charged at a constant voltage for seven days at 4.2 V after the constant current charging and a discharge capacity with the lithium-ion rechargeable battery discharged at a constant current to 2 V after the constant voltage charging reaches 25 mAh/g or less, a method for manufacturing the electrode material, an electrode including the electrode material, and a lithium-ion rechargeable battery including the electrode as a cathode.


Patent
Sumitomo Osaka Cement | Date: 2017-08-16

A lithium-ion secondary battery of the present invention includes a cathode including an electrode material having electrode active material particles and an oxide coat and a carbonaceous film which coat surfaces of the electrode active material particles, an anode including a carbon-based active material, and an electrolytic solution, and the electrolytic solution does not substantially include additivesforstabilizing a coat formed on a surface of the anode.


Patent
Sumitomo Osaka Cement | Date: 2016-06-02

An optical waveguide device includes a substrate with an electro-optic effect on which an optical waveguide and an electrode for controlling optical waves propagating through the optical waveguide are formed and at least one light source for irradiating ultraviolet light on the substrate.


To provide a positive electrode material for lithium ion secondary batteries capable of reducing waste loss, a method of producing the same, a positive electrode for lithium ion secondary batteries and a lithium ion secondary battery which contain the above-described positive electrode material for lithium ion secondary batteries. A positive electrode material for lithium ion secondary batteries, wherein the positive electrode material includes inorganic particles whose surfaces are coated with a carbonaceous film, the inorganic particles being represented by a formula LiFe_(x)Mn_(1-x-y)M_(y)PO_(4) (0.05x1.0, 0y0.14, where M represents at least one selected from the group consisting of Mg, Ca, Co, Sr, Ba, Ti, Zn, B, Al, Ga, In, Si, Ge, and rare earth elements), a specific surface area is 6 m^(2)/g to 20 m^(2)/g, a lightness L* is 0 to 40, and a chroma C* is 0 to 3.5.


An electrode material for a lithium-ion rechargeable battery of the present invention is an electrode material for a lithium-ion rechargeable battery formed by coating a surface of an electrode active material represented by General Formula LiFe_(x)Mn_(1-x-y)M_(y)PO_(4 )(here, M represents at least one element selected from Mg, Ca, Co, Sr, Ba, Ti, Zn, B, Al, Ga, In, Si, Ge, and rare earth elements, 0.05x1.0, 0y0.14) with a carbonaceous film, in which an angle of repose is in a range of 35 or more and 50 or less.


Provided are an electrode material for a lithium-ion rechargeable battery including core particles of an active material and a carbonaceous film, in which a powder resistance is 150 cm or less, and a lithium-ion rechargeable battery produced using the electrode material and a lithium metal exhibits a difference between a sum of a charge capacity with an upper limit voltage of 4.2 V and the lithium-ion rechargeable battery charged at a constant current and a charge capacity with the lithium-ion rechargeable battery charged at a constant voltage for seven days at 4.2 V after the constant current charging and a discharge capacity with the lithium-ion rechargeable battery discharged at a constant current to 2 V after the constant voltage charging reaches 25 mAh/g or less, a method for manufacturing the electrode material, an electrode including the electrode material, and a lithium-ion rechargeable battery including the electrode as a cathode.

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