-
1.发明授权公开(公告)号：US12080490B2
公开(公告)日：2024-09-03
申请号：US17396767
申请日：2021-08-09
摘要： An electrode foil for an electrolytic capacitor includes a metal foil having a porous part, and a dielectric layer covering a surface of a metal framework constituting the porous part. The dielectric layer includes a first layer containing an oxide of a second metal different from a first metal contained in the metal framework. The first layer has a thickness T1. The first layer contains at least one kind of additive element selected from the group consisting of carbon, phosphorus, boron, and nitrogen. The first layer includes a first region from an outer surface of the first layer to a center of the first layer in a thickness direction, and a second region from the center to an inner surface of the first layer. A content of the at least one kind of additive element in the first region is greater than a content of the at least one kind of additive element in the second region.
-
2.发明授权公开(公告)号：US11848163B2
公开(公告)日：2023-12-19
申请号：US17396635
申请日：2021-08-06
发明人： Miwa Ogawa , Naomi Kurihara , Mitsuhisa Yoshimura
CPC分类号： H01G9/045 , H01G9/0032 , H01G9/055 , H01G9/07 , H01G9/15
摘要： An electrode foil for an electrolytic capacitor includes an anode body foil having a porous part, and a dielectric layer covering a surface of a metal framework constituting the porous part. The dielectric layer includes a first layer containing an oxide of a second metal, the second metal being different from a first metal contained in the metal framework. An underlayer that is continuous with the first layer is provided between the metal framework and the first layer. The underlayer contains phosphorus and carbon.
-
公开(公告)号：US12112896B2
公开(公告)日：2024-10-08
申请号：US17426039
申请日：2020-02-19
CPC分类号： H01G9/0032 , C23C16/0209 , C23C16/40 , H01G13/006 , H01G9/055
摘要： A film production method for producing a layer containing a metal oxide, the film production method including: a heating step of heating a metal foil containing a first metal by bringing a part of the metal foil into contact with at least one heat generator; a first contact step of letting first gas containing a second metal to be in contact with both surfaces of the metal foil in a state where the part of the metal foil is supported; and a second contact step of letting second gas containing an oxidant to be in contact with the both surfaces of the metal foil in a state where the part of the metal foil is supported.
-
公开(公告)号：US12014884B2
公开(公告)日：2024-06-18
申请号：US16984800
申请日：2020-08-04
CPC分类号： H01G9/048 , H01G9/0032 , H01G9/02 , H01G9/07
摘要： An electrode foil for an electrolytic capacitor includes an anode electrode body including a base material part having a porous body portion, and a dielectric layer disposed on a surface of the porous body portion. The anode electrode body has a first main surface in which pores of the porous body portion are opened, a second main surface opposite to the first main surface, and an end surface connecting the first main surface and the second main surface. In the porous body portion, a first film thickness of the dielectric layer in an end surface vicinity region is larger than a second film thickness of the dielectric layer in a deep inner region, the end surface vicinity region being a region within a predetermined distance from the end surface, the deep inner region being a region located away from the first main surface and at a central portion in a direction parallel to the first main surface.
-
公开(公告)号：US11915885B2
公开(公告)日：2024-02-27
申请号：US17637199
申请日：2020-09-04
发明人： Miwa Ogawa , Naomi Kurihara
CPC分类号： H01G9/07 , H01G9/0032 , H01G9/035 , H01G9/042
摘要： An electrode foil for an electrolytic capacitor includes: an anode body including a first metal; a first dielectric layer covering at least a part of the anode body and including an oxide of the first metal; and a second dielectric layer covering at least a part of the first dielectric layer and including an oxide of a second metal. The first metal includes at least one selected from the group consisting of titanium, tantalum, niobium, and aluminum. And the second metal includes at least one selected from the group consisting of silicon, zirconium, hafnium, and tantalum. A thickness T2 of the second dielectric layer is smaller than a thickness T1 of the first dielectric layer.
-
6.发明授权公开(公告)号：US12080489B2
公开(公告)日：2024-09-03
申请号：US17434263
申请日：2019-10-30
发明人： Mitsuhisa Yoshimura , Shosuke Nakano , Hiroshi Yoshida , Masami Tsubaki , Naomi Kurihara , Miwa Ogawa
CPC分类号： H01G9/055 , H01G9/0032 , H01G9/145
摘要： An electrode foil for an electrolytic capacitor including a metal porous portion, and a metal core portion continuous to the metal porous portion. When the metal porous portion is equally divided in three in a thickness direction of the metal porous portion into a first region, a second region, and a third region sequentially from the metal core portion side, the first region has a porosity P1, the second region has a porosity P2, and the third region has a porosity P3, satisfying P1
-
公开(公告)号：US11222753B2
公开(公告)日：2022-01-11
申请号：US16558271
申请日：2019-09-02
发明人： Miwa Ogawa , Naomi Kurihara
摘要： An electrode includes a core portion including a first metal, and a porous portion disposed in contact with the core portion. The porous portion includes a porous body, a first dielectric layer, and a second dielectric layer. The porous body is integrated with the core portion and includes the first metal. The first dielectric layer covers at least a part of a surface of the porous body. And the second dielectric layer covers at least a part of the first dielectric layer. The first dielectric layer includes oxide of first metal, and the second dielectric layer includes oxide of a second metal. The second metal is different from the first metal. When T is a thickness of the porous portion, the second metal is distributed to a region closer to the core portion than a position of 0.5T from a boundary between the core portion and the porous portion.
-
公开(公告)号：US10804039B2
公开(公告)日：2020-10-13
申请号：US16106210
申请日：2018-08-21
发明人： Miwa Ogawa , Ayumi Kochi , Yasuhiro Tsuda
IPC分类号： C23C28/00 , C23C28/04 , H01G9/00 , H01G9/055 , H01G9/04 , H01G9/042 , C23C16/02 , C25D11/10 , C23C16/455 , C23C16/40 , C25D11/16 , H01G9/025 , H01G9/035 , H01G9/045
摘要： An electrolytic capacitor has an electrode foil that includes a metal foil containing a first metal, a first dielectric layer disposed on the metal foil, and a second dielectric layer disposed on the first dielectric layer. A method for manufacturing the electrolytic capacitor includes subjecting a roughening treatment to the metal foil and forming the second dielectric layer on a roughened surface of the metal foil by an atomic layer deposition method. The second dielectric layer contains an oxide of a second metal. The method further includes forming the first dielectric layer containing an oxide of the first metal between the metal foil and the second dielectric layer by subjecting the metal foil to an anodization treatment.
-
-
-
-
-
-
-
搜索结果
8 条记录 (耗时 0.02 秒)
