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公开(公告)号：US10714732B2
公开(公告)日：2020-07-14
申请号：US15868922
申请日：2018-01-11
Applicant: FDK CORPORATION
Inventor： Hidefumi Isaji , Hiroyuki Shibaoka , Isao Mugima , Tomomi Nakamura , Tetsu Yamanaka
Abstract: A current collecting lead is interposed between a sealing body and a positive electrode current collector for connecting the sealing body and the positive electrode current collector, the sealing body including a positive electrode terminal, the positive electrode current collector being attached to an electrode group, the current collecting lead including: a top wall portion positioned on the side of the sealing body; leg portions positioned on the side of the positive electrode current collector and that face the top wall portion; and a pair of side wall portions that extend between side edges of the top wall portion and side edges of the leg portions and that face each other, a first corner portion and a second corner portion formed by the top wall portion and the side wall portions and a third corner portion and a fourth corner portion formed by the leg portions and the side wall portions being rounded corners that are curved.
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Patent Agency Ranking
公开(公告)号：US20240118348A1
公开(公告)日：2024-04-11
申请号：US18475889
申请日：2023-09-27
Applicant: FDK CORPORATION
Inventor： Tetsuya Yamane , Tetsu Yamanaka , Masanori Tamura , Hideyuki Asanuma
IPC: G01R31/392 , G01R31/367 , G01R31/378
CPC classification number: G01R31/392 , G01R31/367 , G01R31/378
Abstract: A method of estimating life of a nickel-metal hydride battery that accommodates a positive electrode plate and a negative electrode plate facing the positive electrode plate with a separator therebetween and containing a hydrogen absorbing alloy together with an electrolyte is disclosed. A charge phase of charging the nickel-metal hydride battery and a discharge phase of discharging the nickel-metal hydride battery after the charge phase constitutes one cycle for charge/discharge of the nickel-metal hydride battery. The method includes: determining a rate of change after one charge/discharge cycle of a surface area of the negative electrode plate which is a boundary face in contact with the electrolyte, and determining an amount of corrosion of the hydrogen absorbing alloy based on the rate of change accumulated for n charge/discharge cycles to estimate the life of the nickel-metal hydride battery based on the amount of corrosion.
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公开(公告)号：US10374260B2
公开(公告)日：2019-08-06
申请号：US15698504
申请日：2017-09-07
Applicant: FDK CORPORATION
Inventor： Tomomi Nakamura , Hiroyuki Shibaoka , Tetsu Yamanaka , Isao Mugima , Hidefumi Isaji , Hideyuki Asanuma
IPC: H01M10/0525 , H01M10/24 , H01M4/24 , H01M10/28 , H01M2/20 , H01M2/26 , H01M10/0587
Abstract: A nickel-hydrogen secondary battery includes: an outer can; a sealing body including a positive electrode terminal, the sealing body sealing an opening of the outer can; an electrode group formed by placing a positive electrode and a negative electrode on top of each other with a separator therebetween and spirally winding the positive electrode and the negative electrode, the electrode group housed in the outer can along with an alkaline electrolyte; a positive electrode current collector connected to positive electrode connection edge portion protruding from one end surface of the electrode group; and a current collecting lead connecting the positive electrode current collector and the sealing body, wherein a relationship between a deformation resistance A of a material a and a deformation resistance B of a material b satisfies a relationship of A
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4.发明申请公开(公告)号：US20180219206A1
公开(公告)日：2018-08-02
申请号：US15868922
申请日：2018-01-11
Applicant: FDK CORPORATION
Inventor： Hidefumi Isaji , Hiroyuki Shibaoka , Isao Mugima , Tomomi Nakamura , Tetsu Yamanaka
Abstract: A current collecting lead is interposed between a sealing body and a positive electrode current collector for connecting the sealing body and the positive electrode current collector, the sealing body including a positive electrode terminal, the positive electrode current collector being attached to an electrode group, the current collecting lead including: a top wall portion positioned on the side of the sealing body; leg portions positioned on the side of the positive electrode current collector and that face the top wall portion; and a pair of side wall portions that extend between side edges of the top wall portion and side edges of the leg portions and that face each other, a first corner portion and a second corner portion formed by the top wall portion and the side wall portions and a third corner portion and a fourth corner portion formed by the leg portions and the side wall portions being rounded corners that are curved.
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公开(公告)号：US10224139B2
公开(公告)日：2019-03-05
申请号：US15514747
申请日：2015-09-18
Applicant: FDK CORPORATION
Inventor： Yuko Kanazawa , Masaru Shinoda , Kiyoto Ono , Tetsu Yamanaka , Mikio Kitaoka
Abstract: A coil device includes two core members, one of which is E-shaped. The E-shaped core member has left and right side faces, and a center leg that extends in a vertical direction. A conducting wire is wound around a core, the core being composed of the two core members arranged to face each other in the vertical direction with a gap between the two core members. The conducting wire is wound around the center leg. First and second heat-sinking plates made of metal are bent so as to be in contact with upper and side faces of the core. The first and second plates are arranged so that first edges of the plates are placed left-right symmetrically with respect to the core with a gap between the edges. Second edges of the plates are in contact with a metal heat-sinking board where the core is placed.
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公开(公告)号：US20180069268A1
公开(公告)日：2018-03-08
申请号：US15698504
申请日：2017-09-07
Applicant: FDK CORPORATION
Inventor： Tomomi Nakamura , Hiroyuki Shibaoka , Tetsu Yamanaka , Isao Mugima , Hidefumi Isaji , Hideyuki Asanuma
CPC classification number: H01M10/24 , H01M2/202 , H01M2/263 , H01M4/24 , H01M10/0587 , H01M10/283
Abstract: A nickel-hydrogen secondary battery includes: an outer can; a sealing body including a positive electrode terminal, the sealing body sealing an opening of the outer can; an electrode group formed by placing a positive electrode and a negative electrode on top of each other with a separator therebetween and spirally winding the positive electrode and the negative electrode, the electrode group housed in the outer can along with an alkaline electrolyte; a positive electrode current collector connected to positive electrode connection edge portion protruding from one end surface of the electrode group; and a current collecting lead connecting the positive electrode current collector and the sealing body, wherein a relationship between a deformation resistance A of a material a and a deformation resistance B of a material b satisfies a relationship of A
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