Toyo Aluminium Kabushiki Kaisha

Katsumi Nakashima

Toshifumi Taira

Jun Kusui

Kazuya Fujimoto

Shinya Sone

Shuhei Kanno

Kazuya Higashimura

Takamasa Tanaka

Ken Wada

To provide an aluminum nitride-based powder that includes less amount of fine powder that is hard to be completely removed, has superior filling performance for a polymeric material, and also has thermal conductivity. The present invention relates to an aluminum nitride-based powder comprising aluminum nitride-based particles, wherein (1) the average particle size D50 is 15 to 200 μm; (2) a content of particles having a particle size of at most 5 μm is at most 60% on a particle number basis; (3) a content of an alkaline earth metal element and a rare-earth element is at most 0.1 weight %; (4) a content of oxygen is at most 0.5 weight %; and (5) a content of silicon is at most 1000 ppm by weight, and a content of iron is at most 1000 ppm by weight.

Aluminum nitride-based powder and method for producing same

An electrode material for aluminum electrolytic capacitors is disclosed, including a sintered body of at least one powder selected from the group consisting of an aluminum powder and an aluminum alloy powder on at least one surface of an aluminum foil substrate or an aluminum alloy foil substrate, wherein (1) the sintered body has a total thickness of 50 to 900 μm, (2) the powder in the sintered body has a 10% particle size Din a number-based particle size distribution of 1.0 to 1.8 μm, (3) the powder in the sintered body has a 50% particle size Din the number-based particle size distribution of 2.0 to 3.5 μm, and (4) the powder in the sintered body has a 90% particle size Din the number-based particle size distribution of 3.8 to 6.0 μm.

Electrode material for aluminum electrolytic capacitors and method for producing same

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Osaka, Japan

Katsumi Nakashima