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Patent Agency Ranking
公开(公告)号：US20160111725A1
公开(公告)日：2016-04-21
申请号：US14979629
申请日：2015-12-28
Applicant: TODA KOGYO CORPORATION
Inventor： Manabu Yamamoto , Daisuke Nishikawa , Kazutoshi Ishizaki , Osamu Sasaki , Hideaki Sadamura
IPC: H01M4/58 , H01M10/0525
CPC classification number: H01M4/5815 , C01G53/006 , C01G53/54 , C01P2002/52 , C01P2002/72 , C01P2004/03 , C01P2004/45 , C01P2004/51 , C01P2004/61 , C01P2006/12 , C01P2006/40 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M2004/021 , H01M2004/028 , H01M2220/30
Abstract: The present invention relates to positive electrode active substance particles comprising a compound having a spinel type structure comprising at least Li, Ni and Mn, and having an Li content which is controlled such that a molar ratio of Li(Ni+Mn) therein is 0.3 to 0.65, an Ni content of 5 to 25% by weight, an Na content of 0.05 to 1.9% by weight and an S content of 0.0005 to 0.16% by weight, a sum of the Na content and the S content being 0.09 to 1.9005% by weight. The positive electrode active substance particles according to the present invention can be suitably used as positive electrode active substance particles for non-aqueous electrolyte secondary batteries which can exhibit a high discharge voltage and an excellent discharge capacity.
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公开(公告)号：US10056612B2
公开(公告)日：2018-08-21
申请号：US15147023
申请日：2016-05-05
Applicant: TODA KOGYO CORPORATION
Inventor： Kazumichi Koga , Masayuki Uegami , Hiroaki Masukuni , Kazutoshi Matsumoto , Kazutoshi Ishizaki , Hideaki Sadamura
CPC classification number: H01M4/505 , C01G45/02 , C01G45/1242 , C01P2002/52 , C01P2002/77 , C01P2004/03 , C01P2004/61 , C01P2006/12 , C01P2006/80 , H01B1/08 , H01M4/0471 , H01M4/46 , H01M4/485 , H01M10/0525
Abstract: This invention provides lithium manganate which has a high output and is excellent in high-temperature stability. This invention relates to lithium manganate particles which are produced by mixing a lithium compound, a manganese compound, a Y compound and an A compound and then calcining the resulting mixture, and have a composition represented by the following chemical formula 1 and an average secondary particle diameter (D50) of 1 to 15 μm, in which Y is at least one element selected from the group consisting of Al and Mg; A is a sintering aid element having a melting point of not higher than 850° C.; x and y satisfy 0.03≤x≤0.15 and 0≤y≤0.20, respectively; z is in the range of 0 to 2.5 mol % based on Mn, wherein the lithium manganate particles have a sulfur content of not more than 100 ppm. Li1+xMn2-x-yYyO4zA (Chemical Formula 1)
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3.发明授权公开(公告)号：US08821766B2
公开(公告)日：2014-09-02
申请号：US13787863
申请日：2013-03-07
Applicant: Toda Kogyo Corporation
Inventor： Masayuki Uegami , Akihisa Kajiyama , Kazutoshi Ishizaki , Hideaki Sadamura
IPC: H01B1/02 , H01M4/13 , H01M4/50 , H01M4/58 , C01G51/04 , C01D1/02 , C01G45/12 , C01F7/00 , C01F11/02 , H01M4/505 , H01M10/0525 , C01G51/00 , H01M4/525
CPC classification number: H01M4/505 , C01G45/1242 , C01G51/54 , C01P2002/52 , C01P2002/54 , C01P2002/72 , C01P2002/74 , C01P2002/77 , C01P2004/03 , C01P2004/51 , C01P2004/52 , C01P2004/61 , C01P2006/12 , C01P2006/40 , H01M4/525 , H01M10/0525 , Y02E60/122 , Y02P70/54 , Y10T428/2982
Abstract: The present invention aims at providing lithium manganate having a high output and an excellent high-temperature stability. The above aim can be achieved by lithium manganate particles having a primary particle diameter of not less than 1 μm and an average particle diameter (D50) of kinetic particles of not less than 1 μm and not more than 10 μm, which are substantially in the form of single crystal particles and have a composition represented by the following chemical formula: Li1+xMn2-x-yYyO4 in which Y is at least one element selected from the group consisting of Al, Mg and Co; x and y satisfy 0.03≦x≦0.15 and 0.05≦y≦0.20, respectively, wherein the Y element is uniformly dispersed within the respective particles, and an intensity ratio of I(400)/I(111) thereof is not less than 33% and an intensity ratio of I(440)/I(111) thereof is not less than 16%.
Abstract translation: 本发明的目的在于提供具有高输出和优异的高温稳定性的锰酸锂。 上述目的可以通过一次粒径不小于1μm的锰酸锂颗粒和动态颗粒的平均粒径（D50）不小于1μm且不大于10μm，其基本上在 具有由以下化学式表示的组成的Li1 + xMn2-x-yYyO4，其中Y是选自Al，Mg和Co中的至少一种元素; x和y分别满足0.03＆nlE; x＆lt; ll; 0.15和0.05＆amp; nlE; y＆nlE; 0.20，其中Y元素均匀分散在各个颗粒内，并且I（400）/ I（111）的强度比不小于 （440）/ I（111）的强度比不小于16％。
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公开(公告)号：US11072869B2
公开(公告)日：2021-07-27
申请号：US16057982
申请日：2018-08-08
Applicant: TODA KOGYO CORPORATION
Inventor： Hiroyasu Watanabe , Daisuke Morita , Manabu Yamamoto , Kazumichi Koga , Akihisa Kajiyama , Hiroaki Masukuni , Hideaki Sadamura , Ryuta Masaki , Kazutoshi Matsumoto
Abstract: The present invention provides a precursor of positive electrode active substance particles for non-aqueous electrolyte secondary batteries which have a high discharge voltage and a high discharge capacity, hardly suffer from side reactions with an electrolyte solution, and are excellent in cycle characteristics, positive electrode active substance particles for non-aqueous electrolyte secondary batteries, and processes for producing these particles, and a non-aqueous electrolyte secondary battery. The present invention relates to positive electrode active substance particles for non-aqueous electrolyte secondary batteries having a spinel structure with a composition represented by the following chemical formula (1), in which the positive electrode active substance particles satisfy the following characteristic (A) and/or characteristic (B) when indexed with Fd-3m in X-ray diffraction thereof: (A) when indexed with Fd-3m in X-ray diffraction of the positive electrode active substance particles, a ratio of I(311) to I(111) [I(311)/I(111)] is in the range of 35 to 43%, and/or (B) when indexed with Fd-3m in X-ray diffraction of the positive electrode active substance particles, a gradient of a straight line determined by a least square method in a graph prepared by plotting sin θ in an abscissa thereof and B cos θ in an ordinate thereof wherein B is a full-width at half maximum with respect to each peak position 2θ (10 to 90°) is in the range of 3.0×10−4 to 20.0×10−4; and Li1+xMn2−y−zNiyMzO4 Chemical Formula (1) wherein x, y, z fall within the range of −0.05·x·0.15, 0.4·y·0.6 and 0·z·0.20, respectively; and M is at least one element selected from the group consisting of Mg, Al, Si, Ca, Ti, Co, Zn, Sb, Ba, W and Bi.
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5.发明申请公开(公告)号：US20130183587A1
公开(公告)日：2013-07-18
申请号：US13787863
申请日：2013-03-07
Applicant: TODA KOGYO CORPORATION
Inventor： Masayuki UEGAMI , Akihisa Kajiyama , Kazutoshi Ishizaki , Hideaki Sadamura
IPC: H01M4/505
CPC classification number: H01M4/505 , C01G45/1242 , C01G51/54 , C01P2002/52 , C01P2002/54 , C01P2002/72 , C01P2002/74 , C01P2002/77 , C01P2004/03 , C01P2004/51 , C01P2004/52 , C01P2004/61 , C01P2006/12 , C01P2006/40 , H01M4/525 , H01M10/0525 , Y02E60/122 , Y02P70/54 , Y10T428/2982
Abstract: The present invention aims at providing lithium manganate having a high output and an excellent high-temperature stability. The above aim can be achieved by lithium manganate particles having a primary particle diameter of not less than 1 μm and an average particle diameter (D50) of kinetic particles of not less than 1 μm and not more than 10 μm, which are substantially in the form of single crystal particles and have a composition represented by the following chemical formula: Li1+xMn2-x-yYyO4 in which Y is at least one element selected from the group consisting of Al, Mg and Co; x and y satisfy 0.03≦x≦0.15 and 0.05≦y≦0.20, respectively, wherein the Y element is uniformly dispersed within the respective particles, and an intensity ratio of I(400)/I(111) thereof is not less than 33% and an intensity ratio of I(440)/I(111) thereof is not less than 16%.
Abstract translation: 本发明的目的在于提供具有高输出和优异的高温稳定性的锰酸锂。 上述目的可以通过一次粒径不小于1μm的锰酸锂颗粒和动态颗粒的平均粒径（D50）不小于1μm和不大于10μm来实现，其基本上在 具有由以下化学式表示的组成的Li1 + xMn2-x-yYyO4，其中Y是选自Al，Mg和Co中的至少一种元素; x和y分别满足0.03 @ x @ 0.15和0.05 @ y @ 0.20，其中Y元素均匀分散在各个颗粒内，其I（400）/ I（111）的强度比不小于33 ％，I（440）/ I（111）的强度比不小于16％。
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