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公开(公告)号：EP4428885A1
公开(公告)日：2024-09-11
申请号：EP22889964.7
申请日：2022-11-02
摘要： The power storage device includes: a case (exterior case 4) including a storage portion (6); a power storage element (8) in which an electrode tab (anode tab 10, cathode tab 12) is formed on a wound end surface and which is stored in the storage portion; a sealing member (18) which is disposed in the storage portion and whose peripheral surface is crimped to an inner wall surface of the case by swaging (swaging portion 30) from an outer peripheral side of the case to seal an opening portion of the storage portion; a support plate (current collecting plate 14) which is in contact with and supports a surface of the sealing member, the surface facing a bottom side of the storage portion; and a support member (folder 20) which is disposed on a surface of plane surfaces of the sealing member, the surface of the plane surfaces facing an opening portion side of the storage portion, and presses and supports the sealing member by engagement with an opening end (36) of the case swaged (vertical swaging portion 32) toward the bottom side of the storage portion. As a result, the sealed state of the case by the sealing member is stabilized against an increase in the pressure in the case.
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2.发明公开
公开(公告)号：EP4333004A1
公开(公告)日：2024-03-06
申请号：EP22828410.5
申请日：2022-06-21
摘要： An electrolytic capacitor that can suppress a decrease over time of capacity, a cathode body included in the electrolytic capacitor, and a production method of the electrolytic capacitor are provided. The electrolytic capacitor includes an anode foil, a cathode body, and electrolytic solution. The anode foil is formed of valve metal and has dielectric oxide film formed on a surface of the foil. The cathode body includes cathode foil formed of valve metal and a carbon layer laminated on the cathode foil. An interfacial resistance between the cathode foil and the carbon layer is 1.8 mΩ · cm 2 or less.
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公开(公告)号：EP4224496A1
公开(公告)日：2023-08-09
申请号：EP21870472.4
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 %.
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公开(公告)号：EP4220675A1
公开(公告)日：2023-08-02
申请号：EP21872622.2
申请日：2021-09-27
发明人： SATO, Kenta , NAKAMURA, Ippei , SAKAKURA, Masao
摘要： Disclosed is an electrolytic capacitor which has a long life and which is provided with an electrolyte which is difficult to steam and disperse in butyl rubber used as a sealing member, and which suppresses evaporation volatilization of the electrolyte. An electrolytic capacitor is provided with a capacitor element having an anode foil, a cathode foil and a separator, an electrolytic solution containing a solvent and a solute, a case containing the capacitor element, and butyl rubber sealing the case, wherein the distance between the Hansen solubility parameter of the solvent and the Hansen solubility parameter of the butyl rubber is not less than 26.5, and the boiling point of the solvent is not less than 160 degrees celsius.
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公开(公告)号：EP4207224A1
公开(公告)日：2023-07-05
申请号：EP21861547.4
申请日：2021-08-24
发明人： FUKUSHIMA, Kouta , TANABE, Keisuke
摘要： An electrolytic capacitor with improved connectivity between a cathode body including a carbon layer and a lead terminal, and a production method thereof are provided. The electrolytic capacitor 1 includes an anode body 2 having a dielectric oxide film 5 on a surface thereof, a cathode body 3 having a cathode foil 31 and a carbon layer 32 formed on the cathode foil 31, electrolytic solution 6 interposed between the anode body 2 and the cathode body 3, and a lead terminal 7 connected to each of the anode body 2 and the cathode body 3 by cold pressure welding. A maximum static friction coefficient of a surface of the carbon layer of the cathode body is 0.6 or more.
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公开(公告)号：EP4024419A1
公开(公告)日：2022-07-06
申请号：EP21870517.6
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 %.
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7.发明公开
公开(公告)号：EP3859357A1
公开(公告)日：2021-08-04
申请号：EP19866752.9
申请日：2019-09-27
发明人： SENZAI Daizou , FURUKAWA Toshihiko
摘要： A method includes processes of (a processing part 8) calculating an estimated heat generation temperature by using drive conditions (22, a storage part 6) at least including drive timing information (18) and drive current value information (20), and temperature change characteristic information (24) of a capacitor, calculating state change information (28) of the capacitor after elapse of a reference time by using the estimated heat generation temperature, and calculating a lifespan estimation value (lifespan estimation result 30) of the capacitor by using the state change information. This enables capacitor lifespan estimation corresponding to fluctuations of a drive current value flowing through the capacitor, the applicability of the capacitor is confirmed, and the safety of equipment using the capacitor is improved.
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公开(公告)号：EP3855463A1
公开(公告)日：2021-07-28
申请号：EP19863351.3
申请日：2019-09-13
发明人： SATO, Kenta , SAKAKURA, Masao
摘要： In a solid electrolytic capacitor having an electrolyte layer consisting of a solid electrolyte layer and a liquid, the solid electrolytic capacitor, which suppresses a dedoping reaction and which ESR thereof does not keenly increase, in particular, after a loading of heat stress, is provided. In the solid electrolytic capacitor, the electrolyte layer is formed in the capacitor element which is formed by opposing an anode foil and a cathode foil. This electrolyte layer includes the solid electrolyte layer and the liquid. The solid electrolyte layer includes a conductive polymer consisting of a dopant and a conjugated polymer. The liquid is filled in air gaps in the capacitor element on which the solid electrolyte layer is formed. The electrolyte layer includes ammonia as a cation component, and a molecular ratio of the cation component relative to 1 mol of a functional group which can contribute to a doping reaction of the dopant, in the electrolyte layer is 23 or less.
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9.发明公开
公开(公告)号：EP3780012A1
公开(公告)日：2021-02-17
申请号：EP19770918.1
申请日：2019-03-18
发明人： ICHIKURA, Osamu , KUROSU, Mitsuru , ABE, Tsubasa , TAMAI, Yuya , YAMAYA, Koji , IDEUE, Takashi
摘要： An object of the present invention is to provide an electronic component module or the like using a bus bar, which enables the use of flow solder by aligning the height of the solder mounting surface with the bus bar of the laminated anode and the bus bar of the cathode. A first bus bar layer stack comprising a first bus bar and a second busbar is insulated laminated, the first lead terminal opening of the electronic component is soldered on the outer surface side of the second bus bar is mounted on the outer surface side of the first bus bar is penetrated in a non-contact, and a second lead terminal insertion hole is soldered by inserting the first lead terminal at a position corresponding to the opening for the first lead terminal, the second lead terminal and the second lead terminal solder insertion hole at a position corresponding to the insertion hole for the second lead terminal is provided with a second lead terminal opening which is penetrated in a non-contact,The first lead terminal solder insertion hole and the second lead terminalsolderinsertion hole, Bus bar layer stack and Electronic component mounting module comprising the same, Method of manufacturing Bus bar layer stack Ver.1.1 on the outer surface side of the second bus bar, to the extent that it is possible to solder by flow solder, the bus bar layer stack is the same height.
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公开(公告)号：EP3731248A1
公开(公告)日：2020-10-28
申请号：EP18891289.3
申请日：2018-12-19
发明人： HONDA Ikufumi , WAKABAYASHI Hiroyuki , MORI Masayuki , SAITO Masaru , KUROKI Takashi , MATSUSHITA Kazuo , KOGA Atsushi , YASUDA Ryoichi , HOSHINO Koji , MATSUSHIMA Masahiro , YAJIMA Keita
摘要： A seal plate (2) seals an opening part of a capacitor case (an exterior case 52) and includes a main body part (4) including a through-hole (8) for discharging a gas (G) in the capacitor case, a pressure valve (12) arranged to cover the through-hole and including a valve body part (26) allowing passage of the gas, a storage part (16) formed in the through-hole to receive the valve body part expanded due to a pressure in the capacitor case, and a stopper (stopper wall 10) that includes an opening part (20) for discharging the gas passing through the valve body part and that comes into contact with a portion of the valve body part in the storage part to deform the valve body part. This achieves an increase in gas permeability of the pressure valve and a high operating pressure maintained in the pressure valve.
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