PROBLEM TO BE SOLVED: To provide a negative electrode material for a secondary battery, capable of improving cycle characteristics thereof furthermore by improving adhesion between a Si particle and a covering material.SOLUTION: A negative electrode material 1 (a negative electrode material for a secondary battery) constitutes an active material layer 11 formed on a collector layer 10 of a negative electrode 100. The negative electrode material 1 includes: a Si particle 2; a Ni-P plating layer 3 containing Ni formed on a surface 2a of the Si particle 2; and a Ni-Si reaction layer 4 formed on an interface 1a between the Si particle 2 and the Ni-P plating layer 3 and containing at least Ni and Si.

Negative electrode material for secondary battery, method for producing negative electrode material for secondary battery, and negative electrode for secondary battery

PROBLEM TO BE SOLVED: To provide a silver sulfurization preventive material capable of sufficiently suppressing the sulfurization of silver, a method for forming a silver sulfurization preventive film using the same, and a method for producing a light-emitting device having excellent sulfurization resistance.SOLUTION: The silver sulfurization preventive material comprises two or more kinds of clays, preferably, two or more kinds of clays with different aspect ratios. The method for forming a silver sulfurization preventive film comprises: a coating step of coating the surface of a silver-containing metal layer with the silver sulfurization preventive material to form a coating film of the silver sulfurization preventive material; and a drying step of drying the coating film.

Silver sulfuration preventive material, method for forming silver sulfuration preventive film, and method for manufacturing light emitting device

PROBLEM TO BE SOLVED: To provide a silver sulfuration preventive material capable of sufficiently controlling sulfuration of silver, a method for forming a silver sulfuration preventive film using the same, a method for manufacturing a light emitting device having excellent sulfuration resistance, and the light emitting device.SOLUTION: A silver sulfuration preventive material contains clay and organic titanium compound, and the mass ratio of the clay to the organic titanium compound is preferably 75/25 to 10/90. A method for forming a silver sulfuration preventive film includes a coating step of forming the coating film of a silver sulfuration preventive material by applying the silver sulfuration preventive material to the surface of a metal layer containing silver, and a drying step of drying the coating film.

Silver sulfuration preventive material, method for forming silver sulfuration preventive film, method for manufacturing light emitting device, and the light emitting device

PROBLEM TO BE SOLVED: To improve reflectivity of light and to prevent discoloration of a silver-plated film under a high temperature condition.SOLUTION: An electroless plating method includes: a palladium treatment step of applying palladium treatment on a Ni-P plating film formed on an article to be plated; and an electroless silver plating step of applying an electroless silver plating to the article to be plated to which the palladium treatment is applied.

享岡田

Papers

Electroless plating method and led mounting substrate

享 岡田

Papers

Electroless plating method and led mounting substrate

享岡田