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公开(公告)号:US20170244103A1
公开(公告)日:2017-08-24
申请号:US15406842
申请日:2017-01-16
Inventor: RYUICHI NATSUI , ISSEI IKEUCHI , KENSUKE NAKURA
IPC: H01M4/505 , H01M4/525 , H01M10/0525
CPC classification number: H01M4/505 , C01G45/1228 , C01G51/50 , C01G53/50 , C01P2002/72 , C01P2002/76 , H01M4/525 , H01M10/0525 , H01M2004/028
Abstract: A cathode active material contains a compound having a crystal structure of space group FM-3M and represented by composition formula (1): LixMeyO2 . . . (1). In the formula, Me represents any of the following: Mn; Mn and one or two or more elements selected from the group consisting of Co, Fe, Sn, Cu, Mo, Bi, V, and Cr; Ni, Mn, and one or two or more elements selected from the group consisting of Co, Fe, Sn, Cu, Mo, Bi, V, and Cr; and one or two or more elements selected from the group consisting of Ni, Co, Fe, Sn, Cu, Mo, Bi, V, and Cr. In addition to this, the following conditions are met: 0.5≦x/y≦3.0; and 1.5≦x+y≦2.3.
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公开(公告)号:US20200350621A1
公开(公告)日:2020-11-05
申请号:US16930430
申请日:2020-07-16
Inventor: YUTA SUGIMOTO , RYUICHI NATSUI , IZURU SASAKI , AKINOBU MIYAZAKI
IPC: H01M10/0562 , H01M10/0525 , H01M4/525
Abstract: 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 Cl, Br, and I. The positive electrode active material includes a metal oxyfluoride.
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23.
公开(公告)号:US20190221837A1
公开(公告)日:2019-07-18
申请号:US16212992
申请日:2018-12-07
Inventor: TAKAYUKI ISHIKAWA , RYUICHI NATSUI , ISSEI IKEUCHI , KENSUKE NAKURA
IPC: H01M4/36 , H01M4/505 , H01M4/525 , H01M4/48 , H01M10/0525
CPC classification number: H01M4/366 , H01M4/483 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M2004/028 , H01M2300/004 , H01M2300/0065
Abstract: 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-3m. The ratio |(003)/|(104) of a first integrated intensity ||(003) of a first peak corresponding to a (003) plane to a second integrated intensity ||(104) of a second peak corresponding to a (104) plane in an XRD pattern of the lithium composite oxide satisfies 0.62≤|(003)/|(104)≤0.90. The covering material has an electron conductivity of 106 S/m or less
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24.
公开(公告)号:US20190198861A1
公开(公告)日:2019-06-27
申请号:US16293577
申请日:2019-03-05
Inventor: RYUICHI NATSUI , JUNKO MATSUSHITA , KENSUKE NAKURA
IPC: H01M4/1315 , H01M4/505 , H01M4/525 , H01M10/0525
CPC classification number: H01M4/1315 , C01G45/00 , C01G51/00 , H01M4/505 , H01M4/525 , H01M10/052 , H01M10/0525 , H01M10/0562 , H01M10/0565 , H01M10/0566 , H01M2004/021 , H01M2004/028
Abstract: A positive-electrode active material contains a compound represented by the following composition formula (1): LixMeyAzOαFβ (1) where Me denotes one or more elements selected from the group consisting of Mn, Co, Ni, Fe, Al, Cu, Nb, Mo, Ti, Cr, Zr, Zn, Na, K, Ca, Mg, Pt, Au, Ru, and W, A denotes one or more elements selected from the group consisting of B, Si, and P, and the following conditions: 1.3≤x≤2.1, 0.8≤y≤1.3, 0
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公开(公告)号:US20190036106A1
公开(公告)日:2019-01-31
申请号:US16034424
申请日:2018-07-13
Inventor: TAKAYUKI ISHIKAWA , RYUICHI NATSUI , KENSUKE NAKURA
IPC: H01M4/1315 , H01M10/0525 , H01M4/13915
Abstract: 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:US20180205073A1
公开(公告)日:2018-07-19
申请号:US15844626
申请日:2017-12-18
Inventor: RYUICHI NATSUI , KENSUKE NAKURA
IPC: H01M4/36 , H01M10/0562 , H01M4/505 , H01M4/525 , H01M10/0525
Abstract: A positive electrode active material contains a lithium composite oxide and a lithium composite oxyfluoride. The lithium composite oxyfluoride covers at least part of the surface of the lithium composite oxide. The lithium composite oxyfluoride is represented by a composition formula LiαMe2βOγFδ, where Me2 represents at least one selected from the group consisting of Mn, Co, Ni, Fe, Al, Cu, V, Nb, Mo, Ti, Cr, Zr, Zn, Na, K, Ca, Mg, Pt, Au, Ru, and W; and 1.0≤α≤2.1; 0.8≤β≤1.3; 1.5≤γ≤2.9; and 0.1≤δ≤1.5. The crystal structure of the lithium composite oxyfluoride belongs to space group Fm-3m.
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27.
公开(公告)号:US20180138496A1
公开(公告)日:2018-05-17
申请号:US15702632
申请日:2017-09-12
Inventor: ISSEI IKEUCHI , RYUICHI NATSUI , KENSUKE NAKURA
IPC: H01M4/131 , H01M10/0525 , H01M4/505 , H01M4/525 , H01M4/485
CPC classification number: H01M4/131 , C01D15/00 , C01G1/02 , C01G45/1228 , C01G51/42 , C01G51/50 , C01P2002/54 , C01P2002/72 , C01P2002/76 , H01M4/485 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M2004/028
Abstract: A positive electrode active material comprising: a compound which has a crystal structure belonging to space group Fm-3m and which is represented by the following composition formula: LixMeyOαXβ. In the formula, the Me represents one or more elements selected from the group consisting of Mn, Ni, Co, Fe, Al, Sn, Cu, Nb, Mo, Bi, Ti, V, Cr, Y, Zr, Zn, Na, K, Ca, Mg, Pt, Au, Ag, Ru, Ta, W, La, Ce, Pr, Sm, Eu, Dy, and Er. The X represents one element selected from the group consisting of Cl, Br, I, N, and S. The following conditions are satisfied: 0.5≤x≤1.5; 0.5≤y≤1.0; 1≤α
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28.
公开(公告)号:US20180090757A1
公开(公告)日:2018-03-29
申请号:US15647265
申请日:2017-07-12
Inventor: ISSEI IKEUCHI , RYUICHI NATSUI , KENSUKE NAKURA
IPC: H01M4/485 , H01M10/0525
CPC classification number: H01M4/485 , C01G45/1228 , C01G45/125 , C01P2002/72 , C01P2002/76 , C01P2006/40 , H01M4/386 , H01M4/505 , H01M4/525 , H01M4/5805 , H01M10/052 , H01M10/0525 , H01M2004/028
Abstract: A positive electrode active material for a battery, the positive electrode active material comprising a compound having a crystal structure of space group Fm-3m and represented by composition formula (1): LixMe1αMe2βO2 . . . (1). In the formula, Me1 represents one or more elements selected from the group consisting of Mn, Ni, Co, Fe, Al, Sn, Cu, Nb, Mo, Bi, Ti, V, Cr, Y, Zr, Zn, Na, K, Ca, Mg, Pt, Au, Ag, Ru, Ta, W, La, Ce, Pr, Sm, Eu, Dy, and Er, Me2 represents one or more elements selected from the group consisting of B, Si, and P, and the following conditions are met: 0
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公开(公告)号:US20180069267A1
公开(公告)日:2018-03-08
申请号:US15813218
申请日:2017-11-15
Inventor: HIROTETSU SUZUKI , RYUICHI NATSUI , NOBUHIKO HOJO
IPC: H01M10/0569 , H01M4/505 , H01M10/052 , H01M10/0568
Abstract: Provided is a battery including: a positive electrode containing a positive electrode active material; a negative electrode; and an electrolyte solution containing a nonaqueous solvent. The positive electrode active material contains a compound represented by composition formula (1) below and having a crystal structure belonging to space group FM3-M: LixMeyOαFβ. (1) Here, Me is one or two or more elements selected from the group consisting of Mn, Co, Ni, Fe, Al, B, Ce, Si, Zr, Nb, Pr, Ti, W, Ge, Mo, Sn, Bi, Cu, Mg, Ca, Ba, Sr, Y, Zn, Ga, Er, La, Sm, Yb, V, and C. x, y, α, and β satisfy the following conditions: 1.7≦x≦2.2, 0.8≦y≦1.3, 1≦α≦2.5, and 0.5≦β≦2, respectively. The nonaqueous solvent includes at least one solvent selected from hydrofluoroethers, phosphazenes, phosphates, and perfluoropolyethers.
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公开(公告)号:US20160365575A1
公开(公告)日:2016-12-15
申请号:US15160016
申请日:2016-05-20
Inventor: RYUICHI NATSUI , KENSUKE NAKURA
IPC: H01M4/505 , H01M4/525 , H01M4/62 , H01M4/66 , H01M10/0585 , H01M10/0525 , H01M10/0569 , H01M10/0568 , H01M2/16 , H01M4/131 , H01M4/38
CPC classification number: H01M4/505 , C01G45/1285 , C01P2002/72 , C01P2006/80 , H01M4/0404 , H01M4/525 , H01M10/052 , H01M2300/004
Abstract: A cathode active material contains a compound represented by composition formula (1): LixNay{LiαNaβMn(1−α−β−z)Az}O2. In the formula, A represents at least one selected from the group consisting of Co, Ni, Fe, and Al, and the following conditions are met: 0.75≦x≦1.0, 0
Abstract translation: 正极活性物质含有由组成式(1)表示的化合物:LixNay {LiαNaβMn(1-α-β-z)Az} O2。 在该式中,A表示选自Co,Ni,Fe和Al中的至少一种,满足以下条件:0.75≤x≤1.0,0
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