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公开(公告)号：US20200303771A1
公开(公告)日：2020-09-24
申请号：US16897119
申请日：2020-06-09
发明人： Kunimitsu KATAOKA , Junji AKIMOTO
IPC分类号： H01M10/0562 , H01M10/0525 , C01G25/00 , H01B1/08 , C01G35/00 , H01B1/12 , H01M10/0585
摘要： To provide a lithium ion conductive crystal body having a high density and a large length and an all-solid state lithium ion secondary battery containing the lithium ion conductive crystal body. A Li5La3Ta2O12 crystal body, which is one example of the lithium ion conductive crystal body, has a relative density of 99% or more, belongs to a cubic system, has a garnet-related type structure, and has a length of 2 cm or more. The Li5La3Ta2O12 crystal body is grown by a melting method employing a Li5La3Ta2O12 polycrystal body as a raw material. With the growing method, a Li5La3Ta2O12 crystal body having a relative density of 100% can also be obtained. In addition, the all-solid state lithium ion secondary battery has a positive electrode, a negative electrode, and a solid electrolyte, in which the solid electrolyte contains the lithium ion conductive crystal body.
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公开(公告)号：US20170324079A1
公开(公告)日：2017-11-09
申请号：US15522654
申请日：2015-10-23
发明人： Kunimitsu KATAOKA , Junji AKIMOTO
IPC分类号： H01M4/131 , C30B29/22 , H01M10/0525 , C01G35/00 , H01B1/08
CPC分类号： H01M4/131 , C01G35/00 , C01G35/006 , C30B29/22 , H01B1/06 , H01B1/08 , H01B13/00 , H01M10/052 , H01M10/0525 , H01M10/0562 , Y02E60/122 , Y02P70/54 , Y02T10/7011
摘要： There are provided a lithium-containing garnet crystal high in density and ionic conductivity, and an all-solid-state lithium ion secondary battery using the lithium-containing garnet crystal. The lithium-containing garnet crystal has a chemical composition represented by Li7-xLa3Zr2-xTaxO12 (0.2≦x≦1), and has a relative density of 99% or higher, belongs to a cubic system, and has a garnet-related structure. The lithium-containing garnet crystal has a lithium ion conductivity of 1.0×10−3 S/cm or higher. Further, this solid electrolyte material has a lattice constant a of 1.28 nm≦a≦1.30 nm, and lithium ions occupy 96h-sites in the crystal structure. The all-solid-state lithium ion secondary battery has a positive electrode, a negative electrode and a solid electrolyte, and the solid electrolyte is constituted of the lithium-containing garnet crystal according to the present invention.
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3.发明申请METHOD FOR PRODUCING TITANIUM OXIDE USING POROUS TITANIUM COMPOUND IMPREGNATED WITH SOLUTION 有权使用溶液浸渍的多孔钛化合物生产氧化钛的方法公开(公告)号：US20160194214A1
公开(公告)日：2016-07-07
申请号：US14911132
申请日：2014-08-14
申请人： NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY , ISHIHARA SANGYO KAISHA, LTD.
发明人： Hideaki NAGAI , Junji AKIMOTO , Kunimitsu KATAOKA , Yoshimasa KUMASHIRO , Tomoyuki SOTOKAWA , Nobuharu KOSHIBA
CPC分类号： C01G23/005 , C01G23/00 , C01G23/047 , C01P2002/72 , C01P2004/03 , C01P2004/32 , C01P2004/61 , C01P2004/62 , C01P2006/12 , C01P2006/14 , C01P2006/16 , C01P2006/40 , H01M4/485
摘要： Provided are: an alkali metal titanium oxide having a uniform composition and that is such that there are no residual by-products having a different composition or unreacted starting materials; and a method for producing a titanium oxide and proton exchange body obtained by processing the alkali metal titanium oxide. The method produces an alkali metal titanium oxide by firing the result of impregnating the surface and inside of pores of porous titanium compound particles with an aqueous solution of an alkali metal-containing component. The alkali metal titanium oxide is subjected to proton exchange, and with the proton exchange body of the alkali metal titanium oxide as the starting material, the titanium oxide is produced through a heat processing step.
摘要翻译： 提供：具有均匀组成并且不具有不同组成的残留副产物或未反应的起始材料的碱金属氧化钛; 以及通过加工碱金属氧化钛得到的氧化钛和质子交换体的制造方法。 该方法通过用含碱金属的组分的水溶液烧结多孔钛化合物颗粒的表面和孔的内部的结果产生碱金属氧化钛。 碱金属氧化钛进行质子交换，以碱金属氧化钛的质子交换体为原料，通过热处理工序制造氧化钛。
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公开(公告)号：US20180138507A1
公开(公告)日：2018-05-17
申请号：US15574222
申请日：2016-05-20
发明人： Junji AKIMOTO , Hiroshi HAYAKAWA
IPC分类号： H01M4/505 , C01G53/00 , H01M10/0525 , H01M4/525
CPC分类号： H01M4/505 , C01G53/66 , C01P2002/50 , C01P2002/72 , C01P2002/76 , C01P2002/77 , C01P2002/85 , C01P2006/40 , H01M4/525 , H01M10/052 , H01M10/0525 , H01M2004/028 , Y02T10/7011
摘要： A composite oxide which includes lithium, at least one of calcium and magnesium, and nickel and manganese, and has a lithium-excess layered rock-salt structure, and a cathode active material and a lithium secondary battery which contain the composite oxide.
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公开(公告)号：US20170365847A1
公开(公告)日：2017-12-21
申请号：US15502452
申请日：2015-08-06
发明人： Kunimitsu KATAOKA , Junji AKIMOTO
IPC分类号： H01M4/485 , H01M10/054 , H01M10/0525
CPC分类号： H01M4/485 , C01G23/005 , C01P2002/72 , C01P2002/77 , H01M10/0525 , H01M10/054 , Y02P70/54
摘要： Provided are a sodium ion secondary battery and a lithium ion secondary battery capable of undergoing a reversible large-capacity charge/discharge reaction. The sodium and lithium ion secondary batteries each have a positive electrode, a negative electrode, and an electrolyte. The active substance of the positive or negative electrode of these secondary batteries is a single-phase polycrystal represented by the following chemical formula: NaxTi4O9 (2≦x≦3), preferably Na2Ti4O9, having a one-dimensional tunnel type structure, and belonging to a monoclinic crystal system. This polycrystal is obtained by filling a container made of molybdenum or the like with a raw material containing a sodium compound and at least one of a titanium compound and metal titanium, and firing at 800° C. or more but 1600° C. or less.
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6.发明申请公开(公告)号：US20170222258A1
公开(公告)日：2017-08-03
申请号：US15329750
申请日：2015-07-30
发明人： Kunimitsu KATAOKA , Junji AKIMOTO
IPC分类号： H01M10/0562 , H01M10/0525 , C01G25/00
摘要： Provided is a high-density lithium-containing garnet crystal body. The lithium-containing garnet crystal body has a relative density of 99% or more, belongs to a tetragonal system, and has a garnet-related type structure. A method of producing a Li7La3Zr2O12 crystal, which is one example of this lithium-containing garnet crystal body, includes melting a portion of a rod-like raw material composed of polycrystalline Li7La3Zr2O12 belonging to a tetragonal system while rotating it on a plane perpendicular to the longer direction and moving the melted portion in the longer direction. The moving rate of the melted portion is preferably 8 mm/h or more but not more than 19 mm/h. The rotational speed of the raw material is preferably 30 rpm or more but not more than 60 rpm. By increasing the moving rate of the melted portion, decomposition of the raw material due to evaporation of lithium can be prevented and by increasing the rotational speed of the raw material, air bubbles can be removed.
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公开(公告)号：US20230378527A1
公开(公告)日：2023-11-23
申请号：US18247952
申请日：2021-08-30
IPC分类号： H01M10/0562 , H01M10/0525
CPC分类号： H01M10/0562 , H01M10/0525 , H01M2300/0077
摘要： Provided is a complex oxide having high density and high lithium ion conductivity and low activation energy. The complex oxide has a chemical composition represented by Li4−xSr2−xLaxZrO6 (0≤x≤1.0) and belongs to a monoclinic space group P21/n. The relative density of this complex oxide can be made to be 100%. The lithium ion conductivity of this complex oxide can be made to be 6.0×10−4 S/cm or more. This complex oxide is produced by melting at least a part of a raw material having a chemical composition represented by Li(4−x)ySr(2−x)zLaxZrO6 (0≤x≤1.0, 1
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公开(公告)号：US20210013495A1
公开(公告)日：2021-01-14
申请号：US16971322
申请日：2019-02-22
发明人： Mikito MAMIYA , Junji AKIMOTO
IPC分类号： H01M4/36 , H01M10/0525 , H01M4/48 , H01M4/04 , H01M4/1391 , H01M4/62 , H01M4/131
摘要： A multilayer body is provided that is used as the negative electrode of a lithium-ion secondary battery that has a high capacity and is excellent in terms of safety, economic efficiency, and cycle characteristics. The multilayer body has a conductive substrate and a composite layer provided on the conductive substrate. The composite layer includes a plurality of particles of silicon oxide and a conductive substance present in gaps between the plurality of particles of silicon oxide. The average particle diameter of the particles of silicon oxide is 1.0 μm or less. The multilayer body further has a conductive layer that is provided on the composite layer and contains a conductive substance. The conductive layer has a thickness of 20 μm or less.
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公开(公告)号：US20180282174A1
公开(公告)日：2018-10-04
申请号：US15753910
申请日：2016-08-19
发明人： Junji AKIMOTO , Naoki HAMAO , Kunimitsu KATAOKA
摘要： Provided is a complex oxide that has a high hydrogen content, contains almost no impurity phase, and is suitable for proton conductivity. The complex oxide is represented by a chemical formula Li7-xHxLa3M2O12 (M represents Zr and/or Hf, and 3.2
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10.发明申请TITANATE COMPOUND, ALKALI METAL TITANATE COMPOUND AND METHOD FOR PRODUCING SAME, AND POWER STORAGE DEVICE USING TITANATE COMPOUND AND ALKALI METAL TITANATE COMPOUND AS ACTIVE MATERIAL 审中-公开钛酸盐化合物，碱金属钛酸盐化合物及其生产方法，以及使用钛酸盐化合物和碱金属钛酸盐化合物作为活性材料的电力存储装置公开(公告)号：US20160344025A1
公开(公告)日：2016-11-24
申请号：US15112632
申请日：2015-01-23
申请人： NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY , ISHIHARA SANGYO KAISHA, LTD.
CPC分类号： H01M4/485 , C01G23/005 , C01G23/04 , C01P2002/72 , C01P2002/74 , C01P2004/03 , C01P2004/54 , C01P2004/62 , C01P2006/12 , C01P2006/40 , C01P2006/80 , H01M4/131 , H01M10/052 , Y02E60/13
摘要： Provided is a titanate compound capable of further increasing the capacity of a power storage device when used as an electrode active material thereof. The titanate compound according to the present invention includes at least 60%, based on the number thereof, of particles having an anisotropic shape and a specific surface area of 10-30 m2/g as measured by a nitrogen adsorption BET one-point method, and having a long-axis diameter (L) in the range of 0.1
摘要翻译： 提供一种当用作电极活性材料时能够进一步提高蓄电装置的容量的钛酸酯化合物。 根据本发明的钛酸酯化合物，通过氮吸附BET一点法测定，其数量为至少60％，其具有各向异性形状的颗粒和比表面积为10-30m 2 / g， 并且通过电子显微镜测量的长轴直径（L）在0.1
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