公开(公告)号：US20220359884A1

公开(公告)日：2022-11-10

申请号：US17660194

申请日：2022-04-21

Applicant: FDK CORPORATION

Inventor： Minori Inoue ,  Takeshi Kajiwara ,  Shohei Unoki ,  Takahiro Endo ,  Shigekazu Yasuoka ,  Yoshikatsu Watanabe

IPC: H01M4/86 ,  H01M10/26 ,  H01M4/90

Abstract: A battery includes: an electrode group including an air electrode and a negative electrode that are stacked with a separator interposed therebetween; and a container housing the electrode group together with an alkaline electrolyte liquid. The air electrode includes a catalyst for an air electrode. This catalyst for an air electrode is a catalyst for an air electrode including an oxide containing at least bismuth (Bi), ruthenium (Ru), sodium (Na), and oxygen, and Na/(Ru+Bi+Na) representing an atomic ratio of the sodium to a sum of the bismuth, the ruthenium, and the sodium is 0.126 or more and 0.145 or less.

公开(公告)号：US11811069B2

公开(公告)日：2023-11-07

申请号：US17660194

申请日：2022-04-21

Applicant: FDK CORPORATION

Inventor： Minori Inoue ,  Takeshi Kajiwara ,  Shohei Unoki ,  Takahiro Endo ,  Shigekazu Yasuoka ,  Yoshikatsu Watanabe

IPC: H01M4/86 ,  H01M10/26 ,  H01M4/90 ,  H01M4/02

CPC classification number: H01M4/8615 ,  H01M4/9016 ,  H01M4/9075 ,  H01M10/26 ,  H01M2004/027 ,  H01M2004/8689 ,  H01M2300/0014

Abstract: A battery includes: an electrode group including an air electrode and a negative electrode that are stacked with a separator interposed therebetween; and a container housing the electrode group together with an alkaline electrolyte liquid. The air electrode includes a catalyst for an air electrode. This catalyst for an air electrode is a catalyst for an air electrode including an oxide containing at least bismuth (Bi), ruthenium (Ru), sodium (Na), and oxygen, and Na/(Ru+Bi+Na) representing an atomic ratio of the sodium to a sum of the bismuth, the ruthenium, and the sodium is 0.126 or more and 0.145 or less.

公开(公告)号：US20230049091A1

公开(公告)日：2023-02-16

申请号：US17813566

申请日：2022-07-19

Applicant: FDK CORPORATION

Inventor： Shohei Unoki ,  Takeshi Kajiwara ,  Minori Inoue ,  Takahiro Endo ,  Shigekazu Yasuoka ,  Yoshikatsu Watanabe

IPC: H01M4/48 ,  H01M4/62

Abstract: A battery includes: an electrode group including an air electrode and a negative electrode that are stacked with a separator interposed therebetween; and a container housing the electrode group together with an alkaline electrolyte liquid. The air electrode includes a catalyst for an air secondary battery, and this catalyst for an air secondary battery includes a pyrochlore bismuth-ruthenium composite oxide having a full width at half maximum of a diffraction peak corresponding to a (222) face obtained by a powder X-ray diffraction method using CuKα rays as X-rays, of 0.350 deg or larger and 0.713 deg or smaller.