-
1.发明申请公开(公告)号：US20180315552A1
公开(公告)日：2018-11-01
申请号：US16029940
申请日：2018-07-09
发明人： Yoshiyuki NARITA , Kazuhiro NAGAHARA , Atsushi TANAKA , Shoji ONO
CPC分类号： H01G9/055 , H01G9/0032 , H01G9/0036 , H01G9/048 , H01G9/145 , H01G9/151 , H01G13/02
摘要： An electrode foil that progresses an enlargement of the surface area of a dielectric film and that barely causes cracks which would even break a core part at the time of winding, a winding capacitor obtained by winding the electrode foil, an electrode foil manufacturing method, and a winding capacitor manufacturing method are provided. An electrode foil is formed of a belt-like foil, and has a surface enlarged part, a core part, and a plurality of separation parts. The surface enlarged part is formed on the surface of the foil, and the core part is a part remained when excluding the surface enlarged part within the foil. The separation part extends in a width direction of the belt in the surface enlarged part, dividing the surface enlarged part. The plurality of separation parts share bending stress when the electrode foil is wound, preventing concentration of stress.
-
公开(公告)号：US20220384117A1
公开(公告)日：2022-12-01
申请号：US17764192
申请日：2021-09-29
摘要： A cathode and an electrolytic capacitor including the cathode which can suppress production of hydrogen gas are provided. The cathode of the electrolytic capacitor includes cathode foil formed of valve action metal and a conductive layer formed on a surface of the cathode foil. A natural immersion potential of the cathode foil when immersed in an electrolyte solution is at a higher side than a natural immersion potential of reference cathode foil formed of the valve action metal with purity of 99.9%.
-
公开(公告)号：US20220415582A1
公开(公告)日：2022-12-29
申请号：US17764180
申请日：2020-12-16
摘要： Provide is an electrolytic capacitor for a middle-to-high voltage application that is equal to or higher than 100 V which suppresses the total amount of gas to be produced in the electrolytic capacitor. The anode foil of the electrolytic capacitor includes an enlarged surface portion provided with tunnel-shape pits formed from the foil surface in the thickness direction of the foil, and a dielectric oxide film formed on the surface of the enlarged surface portion. The cathode body of the electrolytic capacitor includes a cathode foil formed of a valve acting metal, and a carbon layer formed on the cathode foil.
-
公开(公告)号：US20210202184A1
公开(公告)日：2021-07-01
申请号：US16650565
申请日：2018-10-02
发明人： Kazuya KOSEKI , Kazuhiro NAGAHARA , Kenji MACHIDA
摘要： Provided is an electrolytic capacitor that can reliably exhibit redox capacity due to a conductive polymer layer of a cathode. The electrolytic capacitor includes: a cathode having a conductive substrate and a conductive polymer layer placed on the surface of the conductive substrate; an anode having a substrate composed of a valve metal and a dielectric layer composed of an oxide of the valve metal that is placed on the surface of the substrate, the anode being disposed such that the dielectric layer and the conductive polymer layer of the cathode are opposed to each other across a space; and an ion conductive electrolyte with which the space is filled, the conductive polymer layer of the cathode that is in contact with the ion conductive electrolyte exhibiting a redox capacity due to application of a voltage between the anode and the cathode, wherein the contact resistance between the conductive substrate and the conductive polymer layer in the cathode is 1 Ωcm2 or less.
-
公开(公告)号：US20240304395A1
公开(公告)日：2024-09-12
申请号：US18276029
申请日：2022-01-26
发明人： Kazuhiro NAGAHARA , Tatsuru HATAE , Kazuya KOSEKI , Atsushi YOSHIDA , Makoto TOMINAGA , Riho Gumilar MAEDA
CPC分类号： H01G9/0425 , H01G9/055
摘要： The present disclosure provides an electrolytic capacitor for middle or high voltage application of 160 V or more, which can suppress the total amount of gas generated inside the electrolytic capacitor. An electrolytic capacitor includes anode foil on which dielectric oxide film is formed, and a cathode body. The cathode body includes cathode foil formed of valve action metal and a carbon layer formed on the cathode foil. The anode foil and the cathode body have capacitance so that when capacitance X of the anode foil per unit area is 1, ratio of capacitance Y of the cathode body per the same unit area is equal to or more than 10.
-
公开(公告)号：US20240105393A1
公开(公告)日：2024-03-28
申请号：US18513535
申请日：2023-11-18
CPC分类号： H01G9/0425 , H01G9/035 , H01G9/055 , H01G9/145
摘要： A cathode and an electrolytic capacitor including the cathode which can suppress production of hydrogen gas are provided. The cathode of the electrolytic capacitor includes cathode foil formed of valve action metal and a conductive layer formed on a surface of the cathode foil. A natural immersion potential of the cathode foil when immersed in an electrolyte solution is at a higher side than a natural immersion potential of reference cathode foil formed of the valve action metal with purity of 99.9%.
-
公开(公告)号：US20230017930A1
公开(公告)日：2023-01-19
申请号：US17786143
申请日：2020-12-15
发明人： Kazuya KOSEKI , Kazuhiro NAGAHARA , Kenji MACHIDA
摘要： Provided is a hybrid electrolytic capacitor having large capacitance, low ESR, and superior high-frequency characteristics and high-temperature endurance. The hybrid electrolytic capacitor 1 is provided with: a cathode 10 having a cathode substrate 11 made of a valve metal, an oxide layer 12 provided on a surface of the cathode substrate 11, an inorganic conductive layer 13 provided on a surface of the oxide layer 12 and including an inorganic conductive material, and an organic conductive layer 14 provided on a surface of the inorganic conductive layer 13 and including a conductive polymer; an anode 20 having an anode substrate 21 made of a valve metal and a dielectric layer 22 provided on a surface of the anode substrate 21; and a composite electrolyte layer 30 having a solid electrolyte layer 31 containing conductive polymer particles 31a which is provided between and in contact with the organic conductive layer 14 of the cathode 10 and the dielectric layer 22 of the anode 20, and an electrolytic solution 32 filled between the conductive polymer particles 31a in the solid electrolyte layer 31.
-
公开(公告)号：US20220367122A1
公开(公告)日：2022-11-17
申请号：US17765427
申请日：2021-09-29
摘要： A cathode and an electrolytic capacitor including the cathode which can suppress production of hydrogen gas are provided. The cathode of the electrolytic capacitor comprising cathode foil formed of valve action metal, and a conductive layer formed on a surface of the cathode foil. When current in a range of current density of leakage current of the electrolytic capacitor flows by electrochemical polarization, potential corresponding to said current is at a higher side than a natural immersion potential of reference cathode foil formed of the valve action metal with purity of 99.9%.
-
公开(公告)号：US20240170226A1
公开(公告)日：2024-05-23
申请号：US18400579
申请日：2023-12-29
CPC分类号： H01G9/055 , H01G9/035 , H01G9/0425
摘要： Provide is an electrolytic capacitor for a middle-to-high voltage application that is equal to or higher than 100 V which suppresses the total amount of gas to be produced in the electrolytic capacitor. The anode foil of the electrolytic capacitor includes an enlarged surface portion provided with tunnel-shape pits formed from the foil surface in the thickness direction of the foil, and a dielectric oxide film formed on the surface of the enlarged surface portion. The cathode body of the electrolytic capacitor includes a cathode foil formed of a valve acting metal, and a carbon layer formed on the cathode foil.
-
公开(公告)号：US20230029692A1
公开(公告)日：2023-02-02
申请号：US17786082
申请日：2020-12-15
发明人： Kazuya KOSEKI , Kazuhiro NAGAHARA , Kazuma OKURA
摘要： Provided is a solid electrolytic capacitor having large capacitance, low ESR, and superior high-frequency characteristics and high-temperature endurance. The solid electrolytic capacitor is provided with: a cathode 10 having a cathode substrate 11 made of a valve metal and having an etching pit 11a; an oxide layer 12 made of an oxide of the valve metal provided on a surface of the cathode substrate 11, and a carbon coating layer 13 provided on a surface of the oxide layer 12, the carbon coating layer 13 including carbon particles and having an entry area 13a that enters the etching pit 11a and a penetration area 13b that penetrates through the oxide layer 12 and conducts with the cathode substrate 11; an anode having an anode substrate made of a valve metal, and a dielectric layer provided on a surface of the anode substrate and made of an oxide of the valve metal that composes the anode substrate; and a solid electrolyte layer including a conductive polymer provided between the carbon coating layer of the cathode and the dielectric layer of the anode.
-
-
-
-
-
-
-
-
-
搜索结果
11 条记录 (耗时 0.02 秒)
