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公开(公告)号：EP3595058A1
公开(公告)日：2020-01-15
申请号：EP17900042.7
申请日：2017-11-20
IPC分类号： H01M4/505 , C01B25/455 , C01B33/32 , C01B35/04 , C01G45/00 , C01G51/00 , C01G53/00 , H01M4/485 , H01M4/525 , H01M10/052 , H01M10/0562 , H01M10/0565 , H01M10/0566 , C01G45/12
摘要： A positive-electrode active material contains a lithium composite oxide, wherein the lithium composite oxide is a multiphase mixture having a first phase with a crystal structure belonging to a space group Fm-3m and a second phase with a crystal structure belonging to a space group other than the space group Fm-3m, and in an XRD pattern of the lithium composite oxide, the integrated intensity ratio I (18°-20°) /I (43°-46°) of a first maximum peak located at a diffraction angle 2θ in the range of 18 to 20 degrees to a second maximum peak located at a diffraction angle 2θ in the range of 43 to 46 degrees satisfies 0.05 ≤ I (18°-20°) /I (43°-46°) ≤ 0.90.
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公开(公告)号：EP3806203A1
公开(公告)日：2021-04-14
申请号：EP19811631.1
申请日：2019-03-20
发明人： NATSUI Ryuichi , NAKURA Kensuke
IPC分类号： H01M4/505 , C01G45/00 , C01G53/00 , H01M4/36 , H01M4/525 , H01M10/052 , H01M10/0562 , H01M10/0565
摘要： A positive electrode active material according to the present disclosure includes a lithium composite oxide that is a multiphase mixture including a first phase having a crystal structure belonging to a monoclinic crystal (e.g., space group C2/m), a second phase having a crystal structure belonging to a hexagonal crystal (e.g., space group R-3m), and a third phase having a crystal structure belonging to a cubic crystal (e.g., space group Fm-3m or space group Fd-3m). In addition, a battery according to an aspect of the present disclosure includes a positive electrode containing the positive electrode active material, a negative electrode, and an electrolyte. The positive electrode active material according to the present disclosure improves the capacity of the battery.
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公开(公告)号：EP3690998A1
公开(公告)日：2020-08-05
申请号：EP18863407.5
申请日：2018-07-11
IPC分类号： H01M4/485 , H01M4/505 , H01M4/525 , H01M10/052 , H01M10/0562 , H01M10/0565 , H01M10/0566
摘要： A positive electrode active material contains a lithium composite oxide containing fluorine and oxygen. The ratio Zs of a molar quantity of fluorine to a total molar quantity of fluorine and oxygen, the molar quantity being obtained by measuring the lithium composite oxide through XPS measurement, is higher than the ratio Za of a molar quantity of fluorine to a total molar quantity of fluorine and oxygen in an average composition of the lithium composite oxide. An XRD pattern of the lithium composite oxide shows a first maximum peak at a diffraction angle 2θ of 18° or more and 20° or less and a second maximum peak at a diffraction angle 2θ of 43° or more and 46° or less. The ratio I(18°-20°)/I(43°-46°) of an integrated intensity I(18°-20°) of the first maximum peak to an integrated intensity I(43°-46°) of the second maximum peak satisfies 0.05 ≤ I(18°-20°)/I(43°-46°) ≤ 0.90.
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公开(公告)号：EP3633773A1
公开(公告)日：2020-04-08
申请号：EP17912072.0
申请日：2017-11-21
IPC分类号： H01M4/505 , C01B25/455 , C01B33/32 , C01B35/04 , C01G45/00 , C01G51/00 , C01G53/00 , C01G55/00 , H01M4/485 , H01M4/525 , H01M10/052 , H01M10/0562 , H01M10/0565 , H01M10/0566
摘要： A positive-electrode active material contains a lithium composite oxide, wherein the lithium composite oxide has a crystal structure belonging to a space group Fd-3m, and the integrated intensity ratio I (111) /I (400) of a peak on the (111) plane to a peak on the (400) plane in an XRD pattern of the lithium composite oxide satisfies 0.05 ≤ I (111) /I (400) ≤ 0.90.
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公开(公告)号：EP4270521A1
公开(公告)日：2023-11-01
申请号：EP21910994.9
申请日：2021-12-23
发明人： NATSUI Ryuichi , NAKURA Kensuke , HIBINO Mitsuhiro
摘要： A positive electrode for secondary batteries includes a positive electrode current collector, and a positive electrode mixture layer provided on a surface of the positive electrode current collector. The positive electrode mixture layer contains a positive electrode active material, a conductive agent, a polysaccharide, and a resin other than the polysaccharide, and at least part of surfaces of the positive electrode active material, the conductive agent, and the resin is coated with the polysaccharide.
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公开(公告)号：EP3745503A1
公开(公告)日：2020-12-02
申请号：EP18902731.1
申请日：2018-12-12
发明人： SUGIMOTO Yuta , NATSUI Ryuichi , SASAKI Izuru , MIYAZAKI Akinobu
IPC分类号： H01M4/1315 , C01F17/00 , C01G25/00 , C01G53/00 , H01M4/505 , H01M4/525 , H01M4/62 , H01M10/052 , H01M10/0562 , H01M10/0585
摘要： Provided is a positive electrode material which further improves charge / discharge efficiency. The positive electrode material according to the present disclosure includes a positive electrode active material and a first solid electrolyte material. The first solid electrolyte material includes Li, M, and X, and does not include sulfur. M is at least one selected from the group consisting of metalloid elements and metal elements other than Li. X is at least one selected from the group consisting of CI, Br, and I. The positive electrode active material includes a metal oxyfluoride.
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公开(公告)号：EP3595059A1
公开(公告)日：2020-01-15
申请号：EP17900203.5
申请日：2017-11-20
发明人： IKEUCHI Issei , NATSUI Ryuichi , NAKURA Kensuke
IPC分类号： H01M4/505 , C01G45/00 , C01G51/00 , C01G53/00 , H01M4/485 , H01M4/525 , H01M10/052 , H01M10/0562 , H01M10/0565 , H01M10/0566 , C01G45/12
摘要： A positive-electrode active material contains a lithium composite oxide containing at least one selected from the group consisting of F, Cl, N, S, Br, and I. The crystal structure of the lithium composite oxide belongs to the space group R-3m. The integrated intensity ratio I (003) /I (104) of a peak on the (003) plane to a peak on the (104) plane in an XRD pattern of the lithium composite oxide satisfies 0.62 ≤ I (003) /I (104) ≤ 0.90.
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