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1.发明授权公开(公告)号：US11233237B2
公开(公告)日：2022-01-25
申请号：US16687703
申请日：2019-11-19
IPC分类号： H01M4/505 , C01B11/24 , H01M10/0525 , H01B1/08 , H01M4/02
摘要： A positive electrode active material contains a lithium composite oxide containing fluorine and oxygen. The lithium composite oxide satisfies 1
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公开(公告)号：US11171327B2
公开(公告)日：2021-11-09
申请号：US16212992
申请日：2018-12-07
摘要： A positive electrode active material includes a lithium composite oxide containing: at least one element selected from the group consisting of fluorine, chlorine, nitrogen, sulfur, bromine, and iodine; and a covering material that covers a surface of the lithium composite oxide. The lithium composite oxide has a crystal structure that belongs to a space group R-3 m. The ratio I(003)/I(104) of a first integrated intensity I(003) of a first peak corresponding to a (003) plane to a second integrated intensity I(104) of a second peak corresponding to a (104) plane in an XRD pattern of the lithium composite oxide satisfies 0.62≤I(003)/I(104) ≤0.90. The covering material has an electron conductivity of 106S/m or less.
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公开(公告)号：US11201319B2
公开(公告)日：2021-12-14
申请号：US16034424
申请日：2018-07-13
IPC分类号： H01M4/1315 , H01M4/13915 , H01M4/36 , H01M4/505 , H01M4/62 , H01M4/525 , H01M4/485 , C01G45/12 , C01G53/00 , H01M4/02 , H01M10/0525
摘要： A positive electrode active material contains a lithium composite oxide and a covering material. The lithium composite oxide has a crystal structure that belongs to space group Fd-3m. The ration I(111)/I(400) of a first integrated intensity I(111) of a first peak corresponding to a (111) plane to a second integrated intensity I(400) of a second peak corresponding to a (400) plane in an XRD pattern of the lithium composite oxide satisfies 0.05≤I(111)/I(400)≤0.90. The covering material has an electron conductivity of 106 S/m or less.
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公开(公告)号：US11043661B2
公开(公告)日：2021-06-22
申请号：US15838360
申请日：2017-12-12
IPC分类号： H01M4/1315 , H01M4/62 , H01M4/505 , H01M4/36 , C07F7/08 , H01M4/525 , H01M4/485 , H01M4/02 , H01M10/0525 , H01M10/0565 , H01M10/0566
摘要： A positive electrode active material contains a lithium composite oxyfluoride and an organosilicon compound binding to the lithium composite oxyfluoride. The organosilicon compound has insulation property.
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5.发明申请公开(公告)号：US20190221838A1
公开(公告)日：2019-07-18
申请号：US16214208
申请日：2018-12-10
CPC分类号： H01M4/366 , H01M4/483 , H01M4/505 , H01M4/525 , H01M2004/028 , H01M2300/0034 , H01M2300/004 , H01M2300/0065
摘要： A positive electrode active material includes a lithium composite oxide and a covering material that covers a surface of the lithium composite oxide. The covering material has an electron conductivity of 106 S/m or less. The lithium composite oxide is a multiphase mixture including a first phase having a first crystal structure that belongs to a space group Fm-3m and a second phase having a second crystal structure that belongs to a space group other than a space group Fm-3m. The ratio I(18°-20°)/I(43°-46°) of a first integrated intensity I(18°-20°) of a first maximum peak present at a first diffraction angle 2θ of 18° or more and 20° or less to a second integrated intensity I(43°-46°) of a second maximum peak present at a second diffraction angle 2θ of 43° or more and 46° or less in an XRD pattern of the lithium composite oxide satisfies 0.05≤I(18°-20°)/I(43°-46°)≤0.90.
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公开(公告)号：US10886529B2
公开(公告)日：2021-01-05
申请号：US16214208
申请日：2018-12-10
IPC分类号： H01M4/00 , H01M4/36 , H01M4/505 , H01M4/525 , H01M4/48 , H01M10/0525 , C01G45/12 , H01M4/62 , C01G53/00 , C01G51/00 , H01M4/02
摘要： A positive electrode active material includes a lithium composite oxide and a covering material that covers a surface of the lithium composite oxide. The covering material has an electron conductivity of 106 S/m or less. The lithium composite oxide is a multiphase mixture including a first phase having a first crystal structure that belongs to a space group Fm-3m and a second phase having a second crystal structure that belongs to a space group other than a space group Fm-3m. The ratio I(18°-20°)/I(43°-46°) of a first integrated intensity I(18°-20°) of a first maximum peak present at a first diffraction angle 2θ of 18° or more and 20° or less to a second integrated intensity I(43°-46°) of a second maximum peak present at a second diffraction angle 2θ of 43° or more and 46° or less in an XRD pattern of the lithium composite oxide satisfies 0.05≤I(18°-20°)/I(43°-46°)≤0.90.
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公开(公告)号：US10651462B2
公开(公告)日：2020-05-12
申请号：US16039305
申请日：2018-07-18
IPC分类号： H01M4/00 , H01M4/36 , H01M4/505 , H01M4/58 , H01M4/525 , H01M4/485 , C01G45/12 , C01G51/00 , H01M4/62 , C01G53/00 , H01M4/02 , H01M10/0525
摘要： A positive electrode active material contains a lithium composite oxide and a covering material. The lithium composite oxide contains at least one element selected from the group consisting of fluorine, chlorine, nitrogen, and sulfur. The lithium composite oxide has a crystal structure that belongs to space group C2/m. The ratio I(003)/I(104) of a first integrated intensity I(003) of a first peak corresponding to a (003) plane to a second integrated intensity I(104) of a second peak corresponding to a (104) plane in an XRD pattern of the lithium composite oxide satisfies 0.05≤I(003)/I(104)≤0.90. The covering material has an electron conductivity of 106 S/m or less.
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