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公开(公告)号：US11811069B2
公开(公告)日：2023-11-07
申请号：US17660194
申请日：2022-04-21
申请人： FDK CORPORATION
发明人： Minori Inoue , Takeshi Kajiwara , Shohei Unoki , Takahiro Endo , Shigekazu Yasuoka , Yoshikatsu Watanabe
CPC分类号： H01M4/8615 , H01M4/9016 , H01M4/9075 , H01M10/26 , H01M2004/027 , H01M2004/8689 , H01M2300/0014
摘要： 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.
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公开(公告)号：US20240332677A1
公开(公告)日：2024-10-03
申请号：US18622822
申请日：2024-03-29
申请人： FDK CORPORATION
IPC分类号： H01M12/08 , H01M4/80 , H01M4/86 , H01M8/0202 , H01M8/0239
CPC分类号： H01M12/08 , H01M4/808 , H01M4/8626 , H01M8/0239 , H01M8/0269
摘要： An air battery module includes a plurality of air battery cells connected in series. Each air battery cell includes a negative electrode current collector, a negative electrode plate, a separator, a positive electrode current collector supporting an air electrode, a water-repellent film, and a flow channel plate. The positive electrode current collector includes a conductive frame and two conductive connection parts formed integrally with the frame and extending in a direction away from the negative electrode current collector. The two connection parts are formed so as to face each other with the air electrode interposed therebetween. When the positive electrode side of a battery cell is connected to the negative electrode side of an adjacent battery cell, the connection part of the battery cell is contact with the negative electrode current collector of the adjacent battery cell and electrically connected thereto.
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公开(公告)号：US20220359884A1
公开(公告)日：2022-11-10
申请号：US17660194
申请日：2022-04-21
申请人： FDK CORPORATION
发明人： Minori Inoue , Takeshi Kajiwara , Shohei Unoki , Takahiro Endo , Shigekazu Yasuoka , Yoshikatsu Watanabe
摘要： 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.
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公开(公告)号：US20230049091A1
公开(公告)日：2023-02-16
申请号：US17813566
申请日：2022-07-19
申请人： FDK CORPORATION
发明人： Shohei Unoki , Takeshi Kajiwara , Minori Inoue , Takahiro Endo , Shigekazu Yasuoka , Yoshikatsu Watanabe
摘要： 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.
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公开(公告)号：US11495804B2
公开(公告)日：2022-11-08
申请号：US16781192
申请日：2020-02-04
摘要： 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.
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公开(公告)号：US11355751B2
公开(公告)日：2022-06-07
申请号：US16665891
申请日：2019-10-28
申请人： FDK CORPORATION
发明人： Takeshi Kajiwara , Shohei Unoki , Takahiro Endo
摘要： A battery includes an electrode group including an air electrode and a negative electrode stacked with a separator therebetween, and a battery case accommodating the electrode group along with an alkali electrolyte solution, wherein the air electrode includes an air electrode mixture containing a pyrochlore-type composite oxide and a manganese oxide, and the pyrochlore-type composite oxide is a bismuth-ruthenium oxide.
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公开(公告)号：US11322751B2
公开(公告)日：2022-05-03
申请号：US16981275
申请日：2019-03-25
申请人： FDK CORPORATION
摘要： 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.
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公开(公告)号：US20210043945A1
公开(公告)日：2021-02-11
申请号：US16981275
申请日：2019-03-25
申请人： FDK CORPORATION
摘要： 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.
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公开(公告)号：US20200251746A1
公开(公告)日：2020-08-06
申请号：US16781192
申请日：2020-02-04
摘要： 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.
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