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公开(公告)号：US20220102081A1
公开(公告)日：2022-03-31
申请号：US17420703
申请日：2020-01-23
发明人： KEI HIROTA , KYOHEI IWAOKA , HITOSHI FUKUI , DAISUKE USA , KOUTA MUNEYASU , HIROKI NAGAYAMA
摘要： A solid electrolytic capacitor includes a capacitor element. The capacitor element includes an anode foil including a base material part and a porous part disposed on a surface of the base material part, a dielectric layer disposed on at least a part of a surface of the anode foil, a solid electrolyte layer covering at least a part of the dielectric layer, and a cathode lead-out layer covering at least a part of the solid electrolyte layer. The anode foil includes an anode section on which the solid electrolyte layer is not disposed, a cathode formation section on which the solid electrolyte layer is disposed, and a separation section located between the anode section and the cathode formation section. A first insulating material is disposed on a surface of the porous part in the separation section. And at least a part of a region of the porous part that is covered with the first insulating material includes a second insulating material.
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公开(公告)号：US20230282425A1
公开(公告)日：2023-09-07
申请号：US18004424
申请日：2021-07-08
发明人： KEITA UENAKA , KEI HIROTA , YUTA TOMIMATSU
CPC分类号： H01G9/0425 , H01G9/15
摘要： A solid electrolytic capacitor element includes an anode body, a dielectric layer disposed on a surface of the anode body, a solid electrolyte layer covering at least a part of the dielectric layer, and a cathode lead-out layer covering at least a part of the solid electrolyte layer. The cathode lead-out layer includes a carbon layer that is in contact with the solid electrolyte layer and covers the at least the part of the solid electrolyte layer. The carbon layer includes a carbonaceous material and a transition metal ion component. A content proportion of the transition metal ion component in the carbon layer is 17000 ppm or less on a mass basis.
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公开(公告)号：US20230074619A1
公开(公告)日：2023-03-09
申请号：US17760001
申请日：2021-02-17
发明人： KEI HIROTA , KEITA UENAKA
摘要： An electrolytic capacitor including a capacitor element. The capacitor element includes an anode body, a dielectric layer covering at least a part of the anode body, a solid electrolyte layer covering at least a part of the dielectric layer, and a cathode lead-out layer covering at least a part of the solid electrolyte layer. The cathode lead-out layer includes a conductive layer. An oxygen permeability of the conductive layer at a thickness of 10 μm is less than or equal to 7 cc/m2·day·atm.
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公开(公告)号：US20240055191A1
公开(公告)日：2024-02-15
申请号：US18258296
申请日：2022-01-12
发明人： KEI HIROTA , TAKAHIRO YOSHII
CPC分类号： H01G9/028 , H01G9/15 , H01G9/0036
摘要： A solid electrolytic capacitor element includes an anode body, a dielectric layer formed on a surface of the anode body, and a cathode part covering at least a part of the dielectric layer. The cathode part includes a solid electrolyte layer covering the at least the part of the dielectric layer. The solid electrolyte layer includes a conductive polymer component containing a conjugated polymer. An oxygen permeability P1 of the solid electrolyte layer after heating at 230° C. for 5 hours is less than or equal to 1.0 cm3/m2·24 h·atm.
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5.发明公开公开(公告)号：US20230268136A1
公开(公告)日：2023-08-24
申请号：US18001672
申请日：2021-07-02
发明人： TOMOKI SUGIMOTO , KEI HIROTA
CPC分类号： H01G9/048 , H01G9/15 , H01G9/0032 , H01G9/0036
摘要： A solid electrolytic capacitor element includes an anode foil that includes a porous part in a surface layer of the anode foil, a dielectric layer,and a cathode part. The cathode part includes a solid electrolyte layer that covers the at least a part of the dielectric layer and a cathode lead-out layer that covers at least a part of the solid electrolyte layer. The anode foil includes a first part that is a cathode forming part where the solid electrolyte layer is formed and a second part where the solid electrolyte layer is not formed. And the anode foil includes a dense part in the surface layer in at least one of the first part and the second part. The dense part has a porosity smaller than a porosity of the porous part. The second part includes at least an anode part including an end part of the anode foil opposite to the first part.
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公开(公告)号：US20230268134A1
公开(公告)日：2023-08-24
申请号：US18006362
申请日：2021-08-19
发明人： YUMA IMANISHI , KEI HIROTA
摘要： A solid electrolytic capacitor element includes an anode body including a porous part, a dielectric layer, and a cathode part. The cathode part includes a solid electrolyte layer covering the dielectric layer. The anode body includes a first anode body part on which the solid electrolyte layer is disposed and a second anode body part on which the solid electrolyte layer is not disposed. The solid electrolyte layer includes a first solid electrolyte layer disposed in the porous part and a second solid electrolyte layer disposed outside the porous part. When a length of the first anode body part in a longitudinal direction thereof is defined as a length L, a thickness of the second solid electrolyte layer in a first region is more than or equal to 1 μm. The first region is a region between boundary between the first anode body part and the second anode body part and a position located away from boundary in a length 0.05L in the first anode body part.
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公开(公告)号：US20240212945A1
公开(公告)日：2024-06-27
申请号：US18421859
申请日：2024-01-24
发明人： KEI HIROTA , KEITA UENAKA , YUKIHIRO SHIMASAKI , HIROKI IMAMURA
CPC分类号： H01G9/0425 , H01G9/15
摘要： An electrolytic capacitor includes a capacitor element. The capacitor element includes an anode body, a dielectric layer that covers at least a part of the anode body, a solid electrolyte layer that covers at least a part of the dielectric layer, and a cathode lead-out layer that covers a part of the solid electrolyte layer. The cathode lead-out layer contains a carbon material and a first polymer including an acid group. The acid group includes at least one selected from the group consisting of a sulfone group, a carboxyl group, and a derivative of the sulfone group or the carboxyl group.
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公开(公告)号：US20230360859A1
公开(公告)日：2023-11-09
申请号：US18245301
申请日：2021-10-21
发明人： TAKAHIRO YOSHII , KEI HIROTA , HIROMI OZAWA
摘要： An anode body, a dielectric layer disposed on a surface of the anode body, and a cathode part covering at least a part of the dielectric layer are provided. The cathode part includes a solid electrolyte layer covering the at least the part of the dielectric layer and containing a conjugated polymer. A solid electrolytic capacitor having excellent heat resistance is provided by using a solid electrolytic capacitor element where a full width at half maximum of a first peak is in a range from 35 cm−1 to 80 cm−1 inclusive when the first peak attributed to a CC stretching vibration derived from the conjugated polymer is fitted with a Lorentz function in a Raman spectrum of the solid electrolyte layer.
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公开(公告)号：US20220277901A1
公开(公告)日：2022-09-01
申请号：US17597671
申请日：2020-07-31
发明人： KEI HIROTA , KEITA UENAKA , YUKIHIRO SHIMASAKI , HIROKI IMAMURA
摘要： An electrolytic capacitor includes a capacitor element. The capacitor element includes an anode body, a dielectric layer that covers at least a part of the anode body, a solid electrolyte layer that covers at least a part of the dielectric layer, and a cathode lead-out layer that covers a part of the solid electrolyte layer. The cathode lead-out layer contains a carbon material and a first polymer including an acid group. The acid group includes at least one selected from the group consisting of a sulfone group, a carboxyl group, and a derivative of the sulfone group or the carboxyl group.
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