公开(公告)号：US20120231262A1

公开(公告)日：2012-09-13

申请号：US13510711

申请日：2010-11-25

Applicant: Shinya Sone ,  Toshifumi Taira ,  Masashi Mehata

Inventor： Shinya Sone ,  Toshifumi Taira ,  Masashi Mehata

IPC: B32B5/16 ,  B22F7/00

CPC classification number: H01G9/045 ,  H01G9/052 ,  H01G9/0525 ,  Y02T10/7022 ,  Y10T428/256

Abstract: The present invention provides an electrode material for aluminum electrolytic capacitors and a production method thereof. The electrode material of the present invention is formed of a sintered body of at least one of aluminum or aluminum alloys, and does not require an etching process. The electrode material of the present invention ensures a high capacitance even when the aluminum or aluminum alloy powder has a small particle diameter and the sintered body has a large thickness. Specifically, the present invention provides an electrode material for aluminum electrolytic capacitors, comprising a sintered body of at least one of an aluminum powder and aluminum alloy powders, wherein: the powder has an average particle diameter d50 of 1 to 10 μm, and the sintered body comprises two or more sintered layers in which average particle diameters d50 of powders contained in adjacent sintered layers have a difference of at least 0.5 μm.

Abstract translation: 本发明提供一种铝电解电容器用电极材料及其制造方法。 本发明的电极材料由铝或铝合金中的至少一种的烧结体构成，不需要蚀刻工序。 本发明的电极材料即使当铝或铝合金粉末具有小的粒径并且烧结体的厚度较大时也能确保高电容。 具体地说，本发明提供一种铝电解电容器用电极材料，其特征在于，包括铝粉和铝合金粉末中的至少一种的烧结体，其中，所述粉末的平均粒径d50为1〜10μm，烧结体 主体包括两个或更多个烧结层，其中在相邻烧结层中包含的粉末的平均粒径d50具有至少0.5μm的差异。