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

IPC: H01M2/26 ,  H01M10/28 ,  H01M10/30 ,  H01M2/20 ,  H01M2/04

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.

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

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

IPC: H01M2/26 ,  H01M10/30 ,  H01M10/28

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.

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

IPC: H01M10/24 ,  H01M4/24 ,  H01M10/28

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