US 11,850,665 B2
Nickel powder and method for producing nickel powder
Yuki Kumagai, Niihama (JP); Atsushi Igari, Niihama (JP); Minseob Shin, Niihama (JP); Shingo Suto, Niihama (JP); and Masaya Yukinobu, Niihama (JP)
Assigned to SUMITOMO METAL MINING CO., LTD., Tokyo (JP)
Appl. No. 17/630,330
Filed by SUMITOMO METAL MINING CO., LTD., Tokyo (JP)
PCT Filed Jul. 30, 2020, PCT No. PCT/JP2020/029288
§ 371(c)(1), (2) Date Jan. 26, 2022,
PCT Pub. No. WO2021/020522, PCT Pub. Date Feb. 4, 2021.
Claims priority of application No. 2019-140933 (JP), filed on Jul. 31, 2019.
Prior Publication US 2022/0250144 A1, Aug. 11, 2022
Int. Cl. B22F 9/04 (2006.01); B22F 9/24 (2006.01); B22F 1/16 (2022.01); B22F 1/065 (2022.01); B22F 1/145 (2022.01); B22F 1/054 (2022.01); B22F 1/00 (2022.01); B22F 1/12 (2022.01); B32B 5/16 (2006.01)
CPC B22F 9/24 (2013.01) [B22F 1/00 (2013.01); B22F 1/054 (2022.01); B22F 1/056 (2022.01); B22F 1/065 (2022.01); B22F 1/12 (2022.01); B22F 1/145 (2022.01); B22F 1/16 (2022.01); B22F 9/04 (2013.01); B32B 5/16 (2013.01); B22F 2301/15 (2013.01); B22F 2304/10 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A nickel powder comprising substantially spherical particles having a number average size of 0.03 μm to 0.4 μm, wherein the nickel powder has an oxide film and plate-shaped particles of nickel-hydroxide on a surface, wherein
a main component of the oxide film is a basic salt of nickel hydroxide,
wherein
a content of the plate-shaped nickel hydroxide particles having a particle size of more than 0.8 μm is 200 mass ppm or less, and
a content of the plate-shaped nickel hydroxide particles having a particle size of more than 1.2 μm is 100 mass ppm or less.