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公开(公告)号：US10294120B2
公开(公告)日：2019-05-21
申请号：US15523568
申请日：2015-10-20
Applicant: SUMITOMO METAL MINING CO., LTD.
Inventor： Hiroko Oshita , Kazuomi Ryoshi , Masanori Takagi
IPC: C01G53/04 , H01M4/525 , H01M4/131 , H01M10/0525 , C01G53/00
Abstract: A nickel composite hydroxide containing reduced amounts of sulfate radicals and chlorine as impurities. The nickel composite hydroxide is represented by Ni1-x-yCoxAly(OH)2+α(0.05≤x≤0.01≤y≤0.2, x+y
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公开(公告)号：US10090514B2
公开(公告)日：2018-10-02
申请号：US15381171
申请日：2016-12-16
Applicant: SUMITOMO METAL MINING CO., LTD.
Inventor： Rei Kokado , Kensaku Mori , Masanori Takagi , Tetsutaro Hayashi
IPC: H01M4/62 , H01M4/525 , H01M4/485 , H01M4/36 , H01M4/04 , C01G53/00 , H01M4/1391 , H01M4/131 , H01M4/02 , B29B7/00 , B29C43/00 , B29C43/02 , H01M10/0525 , H01M10/052 , B29K105/16 , B29K509/00 , B29L31/34
Abstract: Provided is a positive-electrode material for nonaqueous-electrolyte secondary batteries, the positive-electrode material being capable of achieving both high capacity and high output when used for a positive electrode for nonaqueous-electrolyte secondary batteries. Also, provided is a method for manufacturing the positive-electrode material for nonaqueous-electrolyte secondary batteries, wherein a lithium metal composite oxide powder is mixed with lithium tungstate, the lithium metal composite oxide powder being represented by a general formula LizNi1−x−yCoxMyO2 (wherein 0.10≤x≤0.35, 0≤y≤0.35, 0.97≤z≤1.20, and M is an addition element and at least one element selected from Mn, V, Mg, Mo, Nb, Ti, and Al) and comprising primary particles and secondary particles composed of aggregation of the primary particles.
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公开(公告)号：US10084188B2
公开(公告)日：2018-09-25
申请号：US14411192
申请日：2013-07-01
Applicant: SUMITOMO METAL MINING CO., LTD.
Inventor： Kensaku Mori , Masanori Takagi , Koji Yamaji , Takehide Honma , Ryozo Ushio
IPC: H01M4/525 , C01G53/00 , H01M4/131 , H01M10/052 , H01M4/02
CPC classification number: H01M4/525 , C01G53/006 , C01G53/42 , C01G53/50 , C01G53/66 , C01P2004/62 , C01P2006/11 , C01P2006/12 , C01P2006/40 , H01M4/131 , H01M10/052 , H01M2004/028 , H01M2220/30
Abstract: A positive electrode active material is provided that has a high capacity, a low irreversible capacity, an excellent initial charge/discharge efficiency, and excellent rate characteristics. This positive electrode active material comprises a hexagonal lithium nickel complex oxide having a layer structure and represented by the general formula LixNi1−y−zCoyMzO2 (0.98≤x≤1.04, 0.25≤y≤0.40, 0≤z≤0.07, and M is at least one element selected from Al, Ti, Mn, Ga, Mg, and Nb), wherein a lithium occupancy rate in a lithium main layer as obtained by Rietveld analysis from the x-ray diffraction pattern is at least 98.7%, and a crystallite diameter as calculated from the peak for the (003) plane in x-ray diffraction is 50 to 300 nm.
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公开(公告)号：US10050267B2
公开(公告)日：2018-08-14
申请号：US14901731
申请日：2014-06-23
Applicant: SUMITOMO METAL MINING CO., LTD.
Inventor： Tomoko Nakayama , Masanori Takagi , Kensaku Mori
CPC classification number: H01M4/525 , C01G53/42 , C01G53/50 , C01P2006/40 , H01M4/485 , H01M4/505 , H01M2004/028
Abstract: The purpose of the present invention is to provide a positive-electrode active material for non-aqueous electrolyte secondary batteries that is capable of achieving both a high capacity and a high output. This positive-electrode active material contains a lithium-nickel composite oxide represented by the general formula: LibNi1-x-yCoxMyO2 wherein M represents at least one element selected from Al, Ti, Mn and W, b is 0.95≤b≤1.03, x is 0
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公开(公告)号：US09774036B2
公开(公告)日：2017-09-26
申请号：US14420082
申请日：2013-08-13
Applicant: SUMITOMO METAL MINING CO., LTD.
Inventor： Masanori Takagi , Haruki Kaneda , Hiroko Oshita , Kensaku Mori
CPC classification number: H01M4/525 , C01G53/42 , C01P2002/50 , C01P2002/54 , C01P2004/61 , C01P2006/12 , H01M4/366 , H01M4/485 , H01M4/505 , H01M10/0585 , H01M2004/021 , H01M2220/30
Abstract: A method for manufacturing a positive active material for a nonaqueous electrolyte secondary battery having both thermal stability and charge-discharge capacity at a high level as well as excellent cycle characteristics. The method for manufacturing a positive active material for a nonaqueous electrolyte secondary battery includes: a step of adding a niobium salt solution and an acid simultaneously to a slurry of a nickel-containing hydroxide, and controlling the pH of the slurry at between 7 and 11 on a 25° C. basis to obtain a nickel-containing hydroxide coated with a niobium compound; a step of mixing the nickel-containing hydroxide coated with the niobium compound with a lithium compound to obtain a lithium mixture; and a step of firing the lithium mixture in an oxidizing atmosphere at 700° C. to 830° C. to obtain a lithium-transition metal composite oxide.
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Patent Agency Ranking
公开(公告)号：US20170098821A1
公开(公告)日：2017-04-06
申请号：US15381171
申请日：2016-12-16
Applicant: SUMITOMO METAL MINING CO., LTD.
Inventor： Rei Kokado , Kensaku Mori , Masanori Takagi , Tetsutaro Hayashi
IPC: H01M4/1391 , H01M4/04 , H01M4/36 , H01M4/525 , C01G53/00 , H01M4/62 , H01M10/0525 , B29C43/00 , B29C43/02 , B29B7/00 , H01M4/131 , H01M4/485
CPC classification number: H01M4/1391 , B29B7/005 , B29C43/003 , B29C43/02 , B29K2105/16 , B29K2509/00 , B29K2995/0005 , B29L2031/3468 , C01G53/42 , C01G53/50 , C01P2004/61 , C01P2004/62 , C01P2006/12 , C01P2006/40 , H01M4/043 , H01M4/131 , H01M4/364 , H01M4/485 , H01M4/525 , H01M4/622 , H01M4/624 , H01M10/052 , H01M10/0525 , H01M2004/028 , H01M2220/20
Abstract: Provided is a positive-electrode material for nonaqueous-electrolyte secondary batteries, the positive-electrode material being capable of achieving both high capacity and high output when used for a positive electrode for nonaqueous-electrolyte secondary batteries. Also, provided is a method for manufacturing the positive-electrode material for nonaqueous-electrolyte secondary batteries, wherein a lithium metal composite oxide powder is mixed with lithium tungstate, the lithium metal composite oxide powder being represented by a general formula LizNi1-x-yCoxMyO2 (wherein 0.10≦x≦0.35, 0≦y≦0.35, 0.97≦z≦1.20, and M is an addition element and at least one element selected from Mn, V, Mg, Mo, Nb, Ti, and Al) and comprising primary particles and secondary particles composed of aggregation of the primary particles.
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公开(公告)号：US10347914B2
公开(公告)日：2019-07-09
申请号：US16029855
申请日：2018-07-09
Applicant: SUMITOMO METAL MINING CO., LTD.
Inventor： Tomoko Nakayama , Masanori Takagi , Kensaku Mori
Abstract: The purpose of the present invention is to provide a positive-electrode active material for non-aqueous electrolyte secondary batteries that is capable of achieving both a high capacity and a high output. This positive-electrode active material contains a lithium-nickel composite oxide represented by the general formula: LibNi1-x-yCoxMyO2 wherein M represents at least one element selected from Al, Ti, Mn and W, b is 0.95≤b≤1.03, x is 0
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8.发明申请公开(公告)号：US20150021518A1
公开(公告)日：2015-01-22
申请号：US14379924
申请日：2013-02-14
Applicant: Sumitomo Metal Mining Co., Ltd.
Inventor： Rei Kokado , Kensaku Mori , Masanori Takagi , Tetsutaro Hayashi
IPC: H01M4/36
CPC classification number: H01M4/1391 , B29B7/005 , B29C43/003 , B29C43/02 , B29K2105/16 , B29K2509/00 , B29K2995/0005 , B29L2031/3468 , C01G53/42 , C01G53/50 , C01P2004/61 , C01P2004/62 , C01P2006/12 , C01P2006/40 , H01M4/043 , H01M4/131 , H01M4/364 , H01M4/485 , H01M4/525 , H01M4/622 , H01M4/624 , H01M10/052 , H01M10/0525 , H01M2004/028 , H01M2220/20
Abstract: Provided is a positive-electrode material for nonaqueous-electrolyte secondary batteries, the positive-electrode material being capable of achieving both high capacity and high output when used for a positive electrode for nonaqueous-electrolyte secondary batteries. Also, provided is a method for manufacturing the positive-electrode material for nonaqueous-electrolyte secondary batteries, wherein a lithium metal composite oxide powder is mixed with lithium tungstate, the lithium metal composite oxide powder being represented by a general formula LizNi1-x-yCoxMyO2 (wherein 0.10≦x≦0.35, 0≦y≦0.35, 0.97≦z≦1.20, and M is an addition element and at least one element selected from Mn, V, Mg, Mo, Nb, Ti, and Al) and comprising primary particles and secondary particles composed of aggregation of the primary particles.
Abstract translation: 本发明提供一种非水电解质二次电池用正极材料，正极材料在用于非水电解质二次电池用正极时，能够实现高容量，高输出。 此外，提供一种制造非水电解质二次电池用正极材料的方法，其中将锂金属复合氧化物粉末与钨酸锂混合，所述锂金属复合氧化物粉末由通式LizNi1-x-yCoxMyO2 （其中0.10和nlE; x和nlE; 0.35,0和nlE; y＆nlE; 0.35,0.97和nlE; z＆nlE; 1.20，M是添加元素和至少一种选自Mn，V，Mg，Mo，Nb，Ti和Al的元素） 并且包含由一次粒子的聚集构成的一次粒子和二次粒子。
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公开(公告)号：US10522830B2
公开(公告)日：2019-12-31
申请号：US15038228
申请日：2014-11-20
Applicant: SUMITOMO METAL MINING CO., LTD.
Inventor： Haruki Kaneda , Hiroko Oshita , Masanori Takagi , Ryozo Ushio
Abstract: Provided is a method for producing a positive electrode active material for nonaqueous electrolyte secondary batteries that achieves both high thermal stability and high charge/discharge capacity and has excellent cycle characteristics and an easy and safe production method thereof, and a nonaqueous electrolyte secondary battery using the positive electrode active material.A method for producing a positive electrode active material for nonaqueous electrolyte secondary batteries includes a crystallization step of adding an alkaline aqueous solution to a mixed aqueous solution containing at least nickel and cobalt for crystallization to obtain a nickel-containing hydroxide represented by a general formula Ni1−a′−b′COa′Mb′(OH)2, a mixing step of mixing the obtained nickel-containing hydroxide, a lithium compound, and a niobium compound to obtain a lithium mixture, and a firing step of firing the lithium mixture in an oxidative atmosphere at 700 to 840° C. to obtain a lithium-transition metal composite oxide.
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10.发明申请METHOD FOR PRODUCING POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY USING SAME 有权用于生产用于非电解电解质二次电池的正极电极活性材料的方法，用于非电解电解质二次电池的正极电极活性材料和使用其的非电解电解质二次电池公开(公告)号：US20150194673A1
公开(公告)日：2015-07-09
申请号：US14420082
申请日：2013-08-13
Applicant: SUMITOMO METAL MINING CO., LTD.
Inventor： Masanori Takagi , Haruki Kaneda , Hiroko Oshita , Kensaku Mori
IPC: H01M4/525
CPC classification number: H01M4/525 , C01G53/42 , C01P2002/50 , C01P2002/54 , C01P2004/61 , C01P2006/12 , H01M4/366 , H01M4/485 , H01M4/505 , H01M10/0585 , H01M2004/021 , H01M2220/30
Abstract: A method for manufacturing a positive active material for a nonaqueous electrolyte secondary battery having both thermal stability and charge-discharge capacity at a high level as well as excellent cycle characteristics. The method for manufacturing a positive active material for a nonaqueous electrolyte secondary battery includes: a step of adding a niobium salt solution and an acid simultaneously to a slurry of a nickel-containing hydroxide, and controlling the pH of the slurry at between 7 and 11 on a 25° C. basis to obtain a nickel-containing hydroxide coated with a niobium compound; a step of mixing the nickel-containing hydroxide coated with the niobium compound with a lithium compound to obtain a lithium mixture; and a step of firing the lithium mixture in an oxidizing atmosphere at 700° C. to 830° C. to obtain a lithium-transition metal composite oxide.
Abstract translation: 一种具有高水平的热稳定性和充放电容量以及优异的循环特性的非水电解质二次电池用正极活性物质的制造方法。 非水电解质二次电池用正极活性物质的制造方法包括：向含镍氢氧化物的浆料中同时添加铌盐溶液和酸，并将浆液的pH控制在7〜11之间的工序 以25℃为基准，得到涂覆有铌化合物的含镍氢氧化物; 将涂覆有铌化合物的含镍氢氧化物与锂化合物混合以获得锂混合物的步骤; 以及在700℃〜830℃的氧化气氛中烧成锂混合物的步骤，得到锂 - 过渡金属复合氧化物。
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