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公开(公告)号：US11984593B2
公开(公告)日：2024-05-14
申请号：US17009927
申请日：2020-09-02
IPC分类号： H01M4/525 , H01M4/131 , H01M4/133 , H01M4/134 , H01M4/36 , H01M4/505 , H01M10/0525 , H01M50/20 , H01M4/02
CPC分类号： H01M4/525 , H01M4/131 , H01M4/133 , H01M4/134 , H01M4/366 , H01M4/505 , H01M10/0525 , H01M50/20 , H01M2004/021 , H01M2004/027 , H01M2004/028 , H01M2300/0071
摘要： According to one embodiment, a secondary battery including a positive electrode, a negative electrode, an insulating layer, and a nonaqueous electrolyte is provided. The positive electrode includes a positive electrode active material-containing layer containing a lithium nickel cobalt manganese composite oxide. The negative electrode includes a negative electrode active material-containing layer having a first surface. The insulating layer includes a solid electrolyte layer having a second surface that is at least partly opposed to or partly in contact with the first surface and containing a Li ion conductive oxide. At least part of the second surface or the first and second surfaces includes a Mn-containing substance. An abundance ratio of Mn on the second surface is higher than that on the first surface.
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2.发明授权公开(公告)号：US10862118B2
公开(公告)日：2020-12-08
申请号：US16117978
申请日：2018-08-30
IPC分类号： H01M6/42 , H01M4/485 , C01G33/00 , H01M4/36 , H01M10/0525 , H01M2/30 , H01M2/10 , B60L50/64 , H01M4/02
摘要： An active material includes an Nb2TiO7 phase and at least one Nb-rich phase selected from an Nb10Ti2O29 phase, an Nb14TiO37 phase, and an Nb24TiO64 phase. The active material satisfies a peak intensity ratio represented by the following Formula (1): 0
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公开(公告)号：US10079390B2
公开(公告)日：2018-09-18
申请号：US15457167
申请日：2017-03-13
IPC分类号： H01M4/66 , H01M4/485 , B60L7/16 , B60L11/18 , H01M10/44 , H01M10/42 , H01M10/24 , H01M4/02 , H01M4/36 , H01M4/62 , H01M10/36 , H01M4/48 , H01M10/48
CPC分类号： H01M4/661 , B60L7/16 , B60L50/50 , B60L50/64 , B60L50/66 , B60L58/21 , B60L58/24 , H01M4/02 , H01M4/366 , H01M4/48 , H01M4/485 , H01M4/62 , H01M4/662 , H01M4/667 , H01M10/24 , H01M10/36 , H01M10/4207 , H01M10/425 , H01M10/44 , H01M10/486 , H01M2220/20 , H01M2300/0002 , Y02T10/7005 , Y02T10/7061
摘要： According to one embodiment, a secondary battery is provided. The secondary battery includes a positive electrode, a negative electrode, and an electrolyte solution. The negative electrode includes a negative electrode current collector including elemental zinc, and a negative electrode layer disposed on the negative electrode current collector. The negative electrode layer includes a negative electrode active material including at least one compound selected from the group consisting of an oxide of titanium, a lithium-titanium oxide, and a lithium-titanium composite oxide. The electrolyte solution includes an aqueous solvent and an electrolyte.
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4.发明申请公开(公告)号：US20170365846A1
公开(公告)日：2017-12-21
申请号：US15692379
申请日：2017-08-31
IPC分类号： H01M4/36 , H01M4/485 , H01M10/0569 , H01M10/0587 , H01M10/0568 , H01M4/02
CPC分类号： H01M4/366 , C01G23/04 , C01P2002/82 , H01M4/1391 , H01M4/483 , H01M4/485 , H01M4/62 , H01M10/0568 , H01M10/0569 , H01M10/0587 , H01M2004/027 , H01M2300/0037
摘要： A negative electrode active material according to an embodiment includes at least a titanic oxide compound. The intensity ratio of an infrared absorption spectrum after pyridine adsorption and desorption on a surface of the negative electrode active material satisfies relationships represented by the following formula [{I(3663 cm−1)/I(3738 cm−1)}>0.7] and the following formula [{I(2981 cm−1)/I(2930 cm−1)}
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公开(公告)号：US11563242B2
公开(公告)日：2023-01-24
申请号：US17186050
申请日：2021-02-26
摘要： According to a management method in an embodiment, in charging of a battery in each of a constant current mode and a constant power mode, it is determined that the battery is unusable based on a voltage of the battery dropping by a voltage threshold value or more from a starting time of dropping without increasing again to a voltage value at the starting time of dropping. In the management method, in charging of the battery in a constant voltage mode, it is determined that the battery is unusable based on a current supplied to the battery increasing by a current threshold value or more from a starting time of increasing without dropping again to a current value at the starting time of increasing.
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公开(公告)号：US11316153B2
公开(公告)日：2022-04-26
申请号：US16804268
申请日：2020-02-28
发明人： Kazuki Ise , Yasunobu Yamashita , Kazuomi Yoshima , Shinsuke Matsuno , Norio Takami , Hiroki Inagaki
摘要： According to one embodiment, provided is a lithium zinc secondary battery including a positive electrode, a negative electrode, an aqueous electrolyte, and a separator between the positive electrode and the negative electrode. The negative electrode includes a zinc-including metal body and an oxide on at least a part of a surface of the metal body. The aqueous electrolyte includes zinc and a lithium salt. Zinc is dissolved and deposited at the negative electrode. Lithium is inserted and extracted from the oxide in a range of −1.4 V (vs. SCE) or more and −1.0 V (vs. SCE) or less. A specific surface area of the oxide is 10 m2/g or more and 350 m2/g or less. A mol concentration ratio Zn/Li between zinc and lithium in the aqueous electrolyte is 1.0×10−5 or more and 0.3 or less.
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公开(公告)号：US10326140B2
公开(公告)日：2019-06-18
申请号：US15445726
申请日：2017-02-28
IPC分类号： H01M4/62 , H01M10/44 , H01M2/10 , H01M10/42 , H01M4/485 , H01M4/36 , H01M4/04 , H01M4/131 , H01M10/0525
摘要： According to one embodiment, a nonaqueous electrolyte battery including a negative electrode that includes a negative electrode current collector and a negative electrode mixed-materials layer is provided. The negative electrode mixed-materials layer includes a titanium-including metal oxide particle that includes a phase including a carbon material on a surface and a binder that includes an acrylic resin. The negative electrode satisfies Equation (I): α/β>6 (I) α is a peel strength (kN/m) between the negative electrode current collector and the negative electrode mixed-materials layer, and β is a cutting strength (kN/m) in the negative electrode mixed-materials layer.
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公开(公告)号：US10141575B2
公开(公告)日：2018-11-27
申请号：US15459242
申请日：2017-03-15
IPC分类号： H01M4/485 , H01M4/505 , H01M4/525 , H01M4/58 , H01M4/62 , H01M10/42 , H01M10/44 , H02J7/14 , H01M4/131 , H01M4/36 , H01M10/052 , H01M4/02
摘要： According to one embodiment, an electrode is provided. The electrode includes a current collector and an electrode layer. The electrode layer is disposed on the current collector and includes lithium fluoride. A first content of lithium fluoride in a first region is 0.02% by weight or more and less than 2% by weight. The first region is adjacent to an interface between the electrode layer and the current collector, and has a first thickness equal to 20% with respect to a thickness of the electrode layer. A second content of lithium fluoride in a second region is from 2% by weight to 10% by weight. The second region is adjacent to a surface on a reverse side of the electrode layer, and has the first thickness.
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公开(公告)号：US20180083286A1
公开(公告)日：2018-03-22
申请号：US15445057
申请日：2017-02-28
IPC分类号： H01M4/66 , H01M4/485 , H01M4/505 , H01M4/62 , H01M10/36 , H01M10/42 , H01M2/30 , H01M4/04 , B60L11/18
CPC分类号： H01M4/667 , B60L11/1851 , H01M2/305 , H01M4/0404 , H01M4/0442 , H01M4/38 , H01M4/48 , H01M4/485 , H01M4/505 , H01M4/623 , H01M4/625 , H01M4/661 , H01M4/664 , H01M10/36 , H01M10/425 , H01M2004/021 , H01M2004/027 , H01M2004/028 , H01M2220/20 , H01M2300/0002
摘要： According to one embodiment, a secondary battery is provided. The secondary battery includes a positive electrode, a negative electrode, and an electrolyte including a water-containing solvent and a lithium ion. The negative electrode includes an aluminum-containing negative electrode current collector and a boehmite-containing cover layer, and the boehmite-containing cover layer is provided on at least a part of a surface of the negative electrode current collector, and has a thickness of 10 nm to 1000 nm.
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公开(公告)号：US11522191B2
公开(公告)日：2022-12-06
申请号：US17020575
申请日：2020-09-14
摘要： A nonaqueous electrolyte battery includes: a positive electrode containing a positive electrode active material made of a compound represented by a compositional formula of LiMn1-x-yFexAyPO4 (wherein A is at least one selected from the group consisting of Mg, Ca, Al, Ti, Zn and Zr, 0≤x≤0.3, and 0≤y≤0.1); a negative electrode containing a negative electrode active material made from a titanium composite oxide; and a nonaqueous electrolyte, wherein a ratio (IP—F/IP—O) of a peak intensity (IP—F) of a P—F bond to a peak intensity (IP—O) of a P—O bond on the surface of the positive electrode, which are measured by X-ray photoelectron spectroscopic analysis, is 0.4 or more and 0.8 or less.
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