Silver powder and method for producing silver powder

• Main Author: SUGAWARA KIMIKO
• Format: Patent
• Language: Chinese; English
• Published: 30.04.2024
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CASTING; CONDUCTORS; ELECTRICITY; INSULATORS; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; PERFORMING OPERATIONS; POWDER METALLURGY; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; TRANSPORTING; WORKING METALLIC POWDER

Provided are a silver powder of a conductive filler suitable for a conductive paste that can be fired at low temperature, and a method for producing the same. This method for producing silver powder comprises: an azole addition step for obtaining a first liquid by adding an azole to an aqueous solution of a silver-ammine complex; a reducing agent addition step for adding a reducing agent to the first liquid to obtain a second liquid; and a fatty acid addition step for obtaining a third liquid by adding a fatty acid to the second liquid, wherein the fatty acid is an unsaturated fatty acid containing two or more double bonds. 提供一种适合于可低温焙烧的导电性糊剂的导电性填料的银粉及其制造方法。银粉的制造方法包括：在银氨络合物水溶液中添加唑类而得到第一液体的唑添加工序；在第一液体中添加还原剂而得到第二液体的还原剂添加工序；以及在第二液体中添加脂肪酸而得到第三液体的脂肪酸添加工序，脂肪酸为包含两个以上双键的不饱和脂肪酸。