公开(公告)号：US20230343927A1

公开(公告)日：2023-10-26

申请号：US17759721

申请日：2021-02-04

Applicant: FDK CORPORATION

Inventor： Syouhei Unoki ,  Takahiro Endo ,  Shigekazu Yasuoka

IPC: H01M4/32 ,  H01M10/28 ,  H01M4/36 ,  H01M4/24

CPC classification number: H01M4/32 ,  H01M10/28 ,  H01M4/364 ,  H01M4/242 ,  H01M2004/028

Abstract: A battery 2 includes: a container 10; and an electrode group 6 housed in the container 10 together with an alkaline electrolyte liquid 4. The electrode group 6 includes a nickel electrode 14 as a positive electrode and a negative electrode 12 that are combined with a separator 8 interposed therebetween. The nickel electrode 14 includes a positive electrode core and a positive electrode mixture permeated in the positive electrode core. The positive electrode mixture contains nickel hydroxide that is a positive electrode active material. The nickel hydroxide contains a sulfate salt, and a weight rate of a S component contained in the sulfate salt to a Ni component in the nickel hydroxide is 0.28% or more and 1.50% or less.

公开(公告)号：US11322751B2

公开(公告)日：2022-05-03

申请号：US16981275

申请日：2019-03-25

Applicant: FDK CORPORATION

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

IPC: H01M4/90 ,  H01M4/38 ,  H01M4/88 ,  H01M12/08 ,  B01J23/644 ,  B01J37/06 ,  H01M4/02 ,  H01M4/86

Abstract: A battery includes an electrode group including an air electrode and a negative electrode stacked with a separator therebetween, and an accommodating bag accommodating the electrode group along with an alkali electrolyte solution. The air electrode includes a catalyst for an air secondary battery. This catalyst for an air secondary battery is produced by a method for producing a catalyst for an air secondary battery, the method including a precursor preparation step of preparing a bismuth-ruthenium oxide precursor, a calcination step of calcining the bismuth-ruthenium oxide precursor obtained in this precursor preparation step to form a bismuth-ruthenium oxide, and a nitric acid treatment step of immersing the bismuth-ruthenium oxide obtained by this calcination step in a nitric acid aqueous solution.

公开(公告)号：US11228027B2

公开(公告)日：2022-01-18

申请号：US16773367

申请日：2020-01-27

Applicant: FDK CORPORATION ,  FUJITSU LIMITED

Inventor： Takeshi Ito ,  Yuzo Imoto ,  Masaru Kihara ,  Takayuki Yano ,  Shigekazu Yasuoka ,  Shuuichi Doi ,  Takashi Yamazaki ,  Yuji Kataoka

IPC: H01M4/36 ,  H01M4/52 ,  H01M4/32 ,  C01G53/04 ,  C01G51/04 ,  H01M4/50 ,  H01M10/34 ,  H01M10/30 ,  H01M4/02

Abstract: A nickel-hydrogen secondary battery includes an electrode group comprising a separator, a positive electrode, and a negative electrode, and the positive electrode contains a positive electrode active material including a base particle comprising a nickel hydroxide particle containing Mn in solid solution and a conductive layer comprising a Co compound and covering the surface of the base particle, wherein the X-ray absorption edge energy of Mn detected within 6500 to 6600 eV by measurement with an XAFS method is 6548 eV or higher.

公开(公告)号：US20210043945A1

公开(公告)日：2021-02-11

申请号：US16981275

申请日：2019-03-25

Applicant: FDK CORPORATION

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

IPC: H01M4/90 ,  H01M12/08 ,  H01M4/38 ,  H01M4/88

Abstract: A battery includes an electrode group including an air electrode and a negative electrode stacked with a separator therebetween, and an accommodating bag accommodating the electrode group along with an alkali electrolyte solution. The air electrode includes a catalyst for an air secondary battery. This catalyst for an air secondary battery is produced by a method for producing a catalyst for an air secondary battery, the method including a precursor preparation step of preparing a bismuth-ruthenium oxide precursor, a calcination step of calcining the bismuth-ruthenium oxide precursor obtained in this precursor preparation step to form a bismuth-ruthenium oxide, and a nitric acid treatment step of immersing the bismuth-ruthenium oxide obtained by this calcination step in a nitric acid aqueous solution.

公开(公告)号：US20200251746A1

公开(公告)日：2020-08-06

申请号：US16781192

申请日：2020-02-04

Applicant: FDK CORPORATION ,  JAPAN METALS AND CHEMICALS CO., LTD.

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

IPC: H01M4/90 ,  H01M12/08 ,  H01M4/38 ,  H01M4/02 ,  H01M4/86

Abstract: An air electrode catalyst for an air secondary battery includes a pyrochlore-type composite oxide having two or more crystal structures having a different amount of oxygen. A battery, according to some embodiments, includes an electrode group including an air electrode and a negative electrode stacked with a separator therebetween, and a container accommodating the electrode group along with an alkali electrolyte solution, wherein the air electrode includes the air electrode catalyst. The air electrode catalyst may have a pyrochlore-type composite oxide having a crystal structure represented by Bi2Ru2O6.92 and a crystal structure represented by Bi2Ru2O7.33.

公开(公告)号：US10177385B2

公开(公告)日：2019-01-08

申请号：US15349933

申请日：2016-11-11

Applicant: FDK CORPORATION ,  FUJITSU LIMITED

Inventor： Yuzo Imoto ,  Takeshi Ito ,  Shigekazu Yasuoka ,  Shuuichi Doi ,  Takashi Yamazaki ,  Yuji Kataoka

IPC: H01M4/131 ,  H01M4/62 ,  H01M4/36 ,  H01M4/52 ,  H01M10/30 ,  H01M4/32 ,  H01M4/02 ,  H01M10/34

Abstract: A nickel-hydrogen secondary battery includes an electrode group including a separator, a positive electrode and a negative electrode, the positive electrode includes a positive electrode active material, the positive electrode active material includes a composite particle including a compound of Co and a compound of Ni, and the ratio R represented by A/B satisfies a relationship of R≥0.3, when the amount of jumping in the X-ray absorption fine structure spectrum of the Co in 7600 to 7800 eV and the amount of jumping in the X-ray absorption fine structure spectrum of the Ni in 8300 to 8500 eV obtained by measurement according to a conversion electron yield method are defined as A and B, respectively.

公开(公告)号：US20150333327A1

公开(公告)日：2015-11-19

申请号：US14710805

申请日：2015-05-13

Applicant: BASF Corporation ,  FDK Corporation

Inventor： Kwo Young ,  Taihei Ouchi ,  Jean Nei ,  Diana Wong ,  Shigekazu Yasuoka

IPC: H01M4/38 ,  C22C30/02 ,  H01M12/08 ,  H01M4/90 ,  H01M10/30 ,  H01M8/08 ,  C22C19/03 ,  C22C30/00

CPC classification number: H01M4/383 ,  C01B3/0047 ,  C22C19/007 ,  C22C19/03 ,  C22C30/00 ,  C22C30/02 ,  H01M4/9041 ,  H01M8/083 ,  H01M10/30 ,  H01M12/08 ,  Y02E60/327

Abstract: A multi-phase hydrogen storage alloy comprising a hexagonal Ce2Ni7 phase and a hexagonal Pr5Co19 phase, where the Ce2Ni7 phase abundance is ≧30 wt % and the Pr5Co19 phase abundance is 8 wt % and where the alloy comprises a mischmetal where Nd in the mischmetal is

Abstract translation: 一种包含六方晶系Ce2Ni7相和六方晶系Pr5Co19相的多相储氢合金，其中Ce2Ni7相丰度≥30wt％，Pr5Co19相丰度为8wt％，合金中含有稀土金属中的Nd的混合稀土 <50at％或包含一种或多种稀土元素，六方晶系Ce2Ni7相和六方晶系Pr5Co19相的多相储氢合金，其中Ce2Ni7相丰度为约30至约72wt％，Pr5Co19相丰度为 ≧8wt％具有改善的电化学性能。 该合金可用于金属氢化物电池，燃料电池或金属氢化物空气电池中的电极。