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公开(公告)号：US20170237065A1
公开(公告)日：2017-08-17
申请号：US15425816
申请日：2017-02-06
申请人： FDK CORPORATION , FUJITSU LIMITED
发明人： Takeshi Ito , Yuzo Imoto , Masaru Kihara , Takayuki Yano , Shigekazu Yasuoka , Shuuichi Doi , Takashi Yamazaki , Yuji Kataoka
CPC分类号： H01M4/366 , C01G51/04 , C01G53/04 , C01P2002/50 , C01P2002/52 , C01P2004/80 , H01M4/32 , H01M4/50 , H01M4/52 , H01M10/30 , H01M10/345 , H01M2004/028 , H01M2300/0014
摘要： 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.
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公开(公告)号：US20170141401A1
公开(公告)日：2017-05-18
申请号：US15349933
申请日：2016-11-11
申请人： FDK CORPORATION , FUJITSU LIMITED
发明人： Yuzo Imoto , Takeshi Ito , Shigekazu Yasuoka , Shuuichi Doi , Takashi Yamazaki , Yuji Kataoka
CPC分类号： H01M4/626 , H01M4/32 , H01M4/364 , H01M4/366 , H01M4/52 , H01M10/30 , H01M10/345 , H01M2004/028
摘要： 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.
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公开(公告)号：US20200161646A1
公开(公告)日：2020-05-21
申请号：US16773367
申请日：2020-01-27
申请人： FDK CORPORATION , FUJITSU LIMITED
发明人： Takeshi Ito , Yuzo Imoto , Masaru Kihara , Takayuki Yano , Shigekazu Yasuoka , Shuuichi Doi , Takashi Yamazaki , Yuji Kataoka
摘要： 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.
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公开(公告)号：US11228027B2
公开(公告)日：2022-01-18
申请号：US16773367
申请日：2020-01-27
申请人： FDK CORPORATION , FUJITSU LIMITED
发明人： Takeshi Ito , Yuzo Imoto , Masaru Kihara , Takayuki Yano , Shigekazu Yasuoka , Shuuichi Doi , Takashi Yamazaki , Yuji Kataoka
IPC分类号： H01M4/36 , H01M4/52 , H01M4/32 , C01G53/04 , C01G51/04 , H01M4/50 , H01M10/34 , H01M10/30 , H01M4/02
摘要： 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.
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公开(公告)号：US10177385B2
公开(公告)日：2019-01-08
申请号：US15349933
申请日：2016-11-11
申请人： FDK CORPORATION , FUJITSU LIMITED
发明人： Yuzo Imoto , Takeshi Ito , Shigekazu Yasuoka , Shuuichi Doi , Takashi Yamazaki , Yuji Kataoka
摘要： 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.
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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：US10418628B2
公开(公告)日：2019-09-17
申请号：US15861854
申请日：2018-01-04
申请人： BASF Corporation , FDK Corporation
发明人： Kwo Young , Taihei Ouchi , Jean Nei , Diana Wong , Shigekazu Yasuoka
IPC分类号： H01M4/38 , C22C30/02 , C22C30/00 , H01M4/90 , H01M10/30 , H01M8/083 , H01M12/08 , C22C19/03 , C22C19/00 , C01B3/00
摘要： 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
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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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