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：US11296388B2

公开(公告)日：2022-04-05

申请号：US16428934

申请日：2019-05-31

Applicant: FDK CORPORATION

Inventor： Yusuke Fukuda ,  Hiroyuki Shibaoka ,  Isao Mugima ,  Tomomi Yokosawa

IPC: H01M2/12 ,  H01M2/02 ,  H01M10/04 ,  H01M2/04 ,  H01M50/342 ,  H01M50/116 ,  H01M50/152

Abstract: A secondary battery includes an outer can, a sealing body sealing an opening of the outer can, an electrode group housed together with an electrolyte inside the outer can, and a positive electrode current collector arranged between the electrode group and the sealing body. The positive electrode current collector has a current collector center through hole provided at a position facing an electrode group through hole of the electrode group. The sealing body includes a lid plate having an exhaust hole at the center, a valve body arranged at a position closing the exhaust hole from the outside of the lid plate, and a positive electrode terminal electrically connected to the lid plate and housing inside with the valve body pressed toward the lid plate. An inner diameter dimension DC of the current collector center through hole of the positive electrode current collector is equal to or less than an inner diameter dimension DL of the exhaust hole.

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

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：US20230402696A1

公开(公告)日：2023-12-14

申请号：US18034084

申请日：2021-09-22

Applicant: FDK CORPORATION

Inventor： Takuro Ito ,  Isao Mugima ,  Daisuke Yokoo

IPC: H01M50/244 ,  H01M50/264 ,  H01M50/209

CPC classification number: H01M50/244 ,  H01M50/264 ,  H01M50/209

Abstract: This battery package has a paper board part formed of paper and a battery storage part formed by folding a paper, wherein: the battery storage part has a bottom portion coupled to the paper board part; three surfaces around the battery storage part are adhered to the paper board part by a sticking margin portion; and the sticking margin portion has a shape which does not overlap the paper board part in a lower corner portion of the battery package.