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公开(公告)号：US09537140B2
公开(公告)日：2017-01-03
申请号：US14397324
申请日：2013-04-25
CPC分类号： H01M4/131 , C01G53/54 , C01P2002/32 , C01P2002/52 , C01P2002/77 , C01P2006/12 , H01M4/485 , H01M4/505 , H01M4/525 , H01M10/052 , Y02E60/122 , Y02T10/7011
摘要： Provided is a new 5 V class spinel exhibiting an operating potential of 4.5 V or more (5 V class), which can suppress the amount of gas generation during high temperature cycles. Suggested is a manganese spinel-type lithium transition metal oxide represented by formula: Li[NiyMn2-(a+b)-y-zLiaTibMz]O4 (wherein 0≦z≦0.3, 0.3≦y 0, b>0, and 3≦b/a≦8.
摘要翻译： 提供了一种新的5 V级尖晶石，其工作电位为4.5V以上（5V级），可以抑制高温循环中的气体产生量。 建议使用以下结构式表示的锰尖晶石型锂过渡金属氧化物：Li [NiyMn2-（a + b）-y-zLiaTibMz] O4（其中0≤z≤0.3,0.3≤y<0.6，M =至少一种 或更多选自Al，Mg，Fe和Co的金属元素），其中在上式中，满足以下关系：a> 0，b> 0和3≤b/a≤8。
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12.发明授权公开(公告)号：US09478800B2
公开(公告)日：2016-10-25
申请号：US14400670
申请日：2013-05-15
CPC分类号： H01M4/364 , H01M4/133 , H01M4/134 , H01M4/366 , H01M4/38 , H01M4/386 , H01M4/587 , H01M4/622 , H01M2004/021 , H01M2004/027 , Y02E60/122 , Y02P70/54
摘要： In order to propose a new negative electrode for nonaqueous electrolyte secondary batteries having excellent dispersibility even with a negative electrode active material having a relatively small particle size, there is proposed a negative electrode active material for nonaqueous electrolyte secondary batteries, the negative electrode active material containing silicon and having negative electrode active material particles that have a D50 based on a volume-based particle size distribution obtainable by measurement by a laser diffraction scattering type particle size distribution analysis method, of 0.1 μm to 5.0 μm, and include a surface layer containing oxygen, silicon and carbon on the entire surface or a portion of the active material surface.
摘要翻译： 为了提出即使对于具有较小粒径的负极活性物质也具有优异的分散性的新的负极，提出了一种非水电解质二次电池用负极活性物质，含有 硅，并且具有基于通过激光衍射散射型粒度分布分析方法的测量可获得的基于体积的粒度分布的D50为0.1μm至5.0μm的负极活性物质颗粒，并且包括含氧的表面层 ，整个表面上的硅和碳或活性材料表面的一部分。
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13.发明申请Method for Manufacturing Over-Lithiated Layered Lithium Metal Composite Oxide 有权制造过度锂化层状锂金属复合氧化物的方法公开(公告)号：US20160254539A1
公开(公告)日：2016-09-01
申请号：US15028036
申请日：2014-10-09
CPC分类号： H01M4/505 , C01G53/50 , C01P2002/72 , C01P2002/76 , C01P2004/03 , C01P2004/51 , C01P2004/61 , C01P2006/11 , C01P2006/12 , C01P2006/14 , C01P2006/16 , C01P2006/40 , H01M4/525 , H01M10/0525 , Y02E60/122 , Y02P70/54 , Y02T10/7011
摘要： A positive electrode material for a lithium-ion cell, comprising an over-lithiated layered lithium metal composite oxide that provides the positive electrode material for a lithium-ion cell. Also, a method for manufacturing an over-lithiated layered lithium metal composite oxide represented by the general formula Li1+xM1−xO2, where x is 0.10 or more and 0.33 or less, and M includes Mn and at least one element selected from the group consisting of Ni, Co, Al, Mg, Ti, Fe and Nb, wherein the method includes a step of mixing a lithium metal composite oxide represented by the general formula Li1+xM1−xO2, where x is −0.15 to 0.15, and M includes Mn and at least one element selected from the group consisting of Ni, Co, Al, Mg, Ti, Fe and Nb, with a lithium compound to obtain a mixture and calcining the mixture to obtain the over-lithiated layered lithium metal composite oxide.
摘要翻译： 一种用于锂离子电池的正极材料，包括提供锂离子电池用正极材料的过锂化层状锂金属复合氧化物。 另外，制造由通式Li1 + xM1-xO2表示的过锂化层状锂金属复合氧化物的方法，其中x为0.10以上且0.33以下，M包括Mn和选自下组的至少一种元素 由Ni，Co，Al，Mg，Ti，Fe和Nb组成，其中该方法包括将由通式Li1 + xM1-xO2表示的锂金属复合氧化物（其中x为-0.15至0.15）和M 包括Mn和选自Ni，Co，Al，Mg，Ti，Fe和Nb中的至少一种元素与锂化合物，以获得混合物并煅烧该混合物以获得过锂化的层状锂金属复合氧化物 。
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公开(公告)号：US09391313B2
公开(公告)日：2016-07-12
申请号：US14772505
申请日：2014-03-04
发明人： Tetsuya Mitsumoto , Hitohiko Ide , Shinya Kagei , Yoshimi Hata
CPC分类号： H01M4/131 , C01G53/50 , C01P2002/74 , C01P2004/61 , C01P2006/12 , C01P2006/80 , H01M4/485 , H01M4/505 , H01M4/525 , H01M2220/20 , Y02E60/122 , Y02P70/54
摘要： Provided is a lithium metal composite oxide (powder) having a layered structure, which is capable of exhibiting excellent characteristics in both charge-discharge cycle ability and initial charging and discharging efficiency, and is capable of effectively reducing initial resistance, when being used in a positive electrode of a lithium battery. The lithium metal composite oxide (powder) comprises an amount of S which is less than 0.10% by mass of the lithium metal composite oxide powder, a ratio of a crystallite size of a (003) plane to a crystallite size of a (110) plane which is equal to or greater than 1.0 and less than 2.5, and a ratio of a primary particle area to a secondary particle area of 0.004 to 0.035.
摘要翻译： 本发明提供一种具有层状结构的锂金属复合氧化物（粉末），其能够在充放电循环能力和初始充放电效率方面表现出优异的特性，并且能够有效地降低初始电阻 锂电池的正极。 锂金属复合氧化物（粉末）的含量少于锂金属复合氧化物粉末的0.10质量％，（003）面的微晶尺寸与（110）面的微晶尺寸的比例， 平面等于或大于1.0且小于2.5，并且一次颗粒面积与二次颗粒面积的比率为0.004至0.035。
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公开(公告)号：US20160093882A1
公开(公告)日：2016-03-31
申请号：US14891445
申请日：2014-05-19
IPC分类号： H01M4/36 , H01M10/052 , H01M4/505 , H01M4/38 , H01M4/587
CPC分类号： H01M4/366 , H01M4/38 , H01M4/505 , H01M4/587 , H01M4/62 , H01M10/052 , H01M2004/028 , H01M2220/20 , Y02T10/7011
摘要： Provided is a lithium secondary battery using a positive electrode active material which operates at a charging voltage in a region exceeding 4.3 V, and a novel positive electrode active material for a lithium secondary battery which can further enhance the output characteristics. Proposed is a positive electrode active material for a lithium secondary battery including positive electrode active material particles obtained by equipping the entire surface or a part of the surface of lithium manganese-containing composite oxide particles (also referred to as the “core particles”) operating at a charging voltage in a region exceeding 4.3 V in a metal Li reference potential with a layer A containing at least Ti, Al, Zr, or two or more kinds of these, and C.
摘要翻译： 提供一种使用在超过4.3V的区域的充电电压下工作的正极活性物质的锂二次电池，以及能够进一步提高输出特性的新颖的锂二次电池用正极活性物质。 提出了一种锂二次电池用正极活性物质，其包括通过将含有锰酸锂的复合氧化物粒子（也称为“芯粒子”）的表面的整个表面或一部分配置在工作中而获得的正极活性物质粒子 在具有至少包含Ti，Al，Zr或这些两种或更多种的层A的金属Li参考电位中在超过4.3V的区域中的充电电压，以及C.
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公开(公告)号：US20150255791A1
公开(公告)日：2015-09-10
申请号：US14430660
申请日：2013-09-24
IPC分类号： H01M4/505 , H01M4/58 , H01M4/525 , H01M10/0525 , H01M4/36
CPC分类号： H01M4/505 , C01G45/1242 , C01G53/54 , C01P2002/32 , C01P2002/72 , C01P2002/76 , C01P2004/61 , C01P2004/62 , C01P2004/80 , C01P2006/12 , H01M4/364 , H01M4/525 , H01M4/5825 , H01M10/0525 , H01M2004/028 , Y02E60/122 , Y10T428/2982
摘要： Provided is a novel spinel-type lithium-manganese composite oxide, allowing gas generation amount to be limited for a gas generated via a reaction with an electrolytic solution. Proposed is a spinel-type lithium-manganese composite oxide, wherein, when the spinel-type lithium-manganese composite oxide is placed in an ion-exchanged water at 20° C., stirred for 10 minutes, then, left to stand undisturbed for 2 minutes, separated into a supernatant and a precipitate and recovered, with respect to the “16d-site-to-32e-site inter-atomic distance (100%)” of the spinel-type lithium-manganese composite oxide contained in the precipitate measured by the Rietveld method using the fundamental method, proportionally, the “16d-site-to-32e-site inter-atomic distance” of the spinel-type lithium-manganese composite oxide contained in the supernatant is less than 101.5%.
摘要翻译： 提供了一种新型尖晶石型锂锰复合氧化物，其允许气体产生量受到与电解液反应产生的气体的限制。 提出的是尖晶石型锂锰复合氧化物，其中，当将尖晶石型锂锰复合氧化物置于20℃的离子交换水中，搅拌10分钟后，静置不动 2分钟，分离成上清液和沉淀物，并回收沉淀物中包含的尖晶石型锂锰复合氧化物的“16d位点到32e位点的原子间距离（100％）” 通过使用基本方法的Rietveld方法，成比例地，上清液中包含的尖晶石型锂锰复合氧化物的“16d位点到32e位置的原子间距离”小于101.5％。
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公开(公告)号：US10468677B2
公开(公告)日：2019-11-05
申请号：US16080175
申请日：2017-02-28
IPC分类号： H01M4/505 , C01G53/00 , H01M4/36 , H01M4/525 , C10G45/02 , H01M10/052 , H01M4/02 , C01G45/02
摘要： Provided is a spinel-type lithium-manganese-containing complex oxide that is related to a 5 V-class spinel, and with which output characteristics and charge-discharge cycle ability can be enhanced while suppressing gas generation. Proposed is a spinel-type lithium-manganese-containing complex oxide comprising at least Li, Mn, O, and two or more other elements, and having an operating potential of 4.5 V or more with respect to a metal Li reference potential, wherein: D50 is 0.5 to 9 μm; a value of (|mode diameter−D50|/mode diameter)×100 is 0 to 25%; a value of (|mode diameter−D10|/mode diameter)×100 is 20 to 58%; a ratio of average primary particle diameter/D50, which is calculated from an average primary particle diameter calculated from a SEM image and the D50, is 0.20 to 0.99; and a primary particle is a polycrystal.
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公开(公告)号：US20190058191A1
公开(公告)日：2019-02-21
申请号：US16079354
申请日：2017-02-27
发明人： Tetsuya Mitsumoto , Toshikazu Matsuyama , Daisuke Washida , Daisuke Inoue , Hideaki Matsushima , Shinya Kagei
IPC分类号： H01M4/525 , C01G53/00 , H01M4/505 , H01M10/0525
摘要： Proposed is a novel lithium metal composite oxide having a layered structure, which is capable of improving the cycle characteristics in the case of using as a positive electrode active material for a battery. Proposed is a lithium metal composite oxide having a layered structure, which is represented by Li1+xNi1−x-α-β-γMnαCoβMγO2 (wherein 0≤x≤0.1, 0.01≤α≤0.35, 0.01≤β≤0.35, 0≤γ≤0.05, and M comprises at least one or more elements selected from the group consisting of Al, Mg, Ti, Fe, Zr, W, Y, and Nb), wherein the amount of residual Li2CO3 present in secondary particles is 0.03 to 0.3 wt %.
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公开(公告)号：US10141570B2
公开(公告)日：2018-11-27
申请号：US15113063
申请日：2015-09-03
发明人： Daisuke Washida , Toshikazu Matsuyama , Tetsuya Mitsumoto , Daisuke Inoue , Hideaki Matsushima , Yoshimi Hata , Hitohiko Ide , Shinya Kagei
IPC分类号： H01B1/08 , H01M4/525 , H01M4/505 , C01G53/00 , H01M4/04 , C01G45/12 , C01G51/00 , H01M10/0525 , H01M4/02
摘要： The present invention relates to a positive electrode active material including a lithium metal composite oxide having a layer crystal structure, and provides a novel positive electrode active material for a lithium secondary cell, which can suppress the reaction with an electrolyte solution and can raise the charge-discharge cycle ability of the cell, and can make good the output characteristics of the cell. There is proposed a positive electrode active material for a lithium secondary cell, including an active particle having a surface portion where one or a combination of two or more (these are referred to as “surface element A”) of the group consisting of Al, Ti and Zr is present, on a surface of a particle including a lithium metal composite oxide having a layer crystal structure and represented by the general formula: Li1+xM1−xO2 (wherein M is one or a combination of two or more (these are referred to as “constituent element M”) of the group consisting of Mn, Co, Ni, transition elements of from the third group elements to the 11th group elements of the periodic table, and typical elements up to the third period of the periodic table), wherein the ratio (CA/CM) of a concentration CA of the surface element A to a concentration CM of the constituent element M is higher than 0 and lower than 0.8, as measured by XPS; the amount of surface lithium impurity is smaller than 0.40% by weight; and in an X-ray diffraction pattern measured by XRD, the ratio (003)/(104) of an integral intensity of the peak originated from the (003) plane to an integral intensity of the peak originated from the (104) plane is higher than 1.15.
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公开(公告)号：US20170012286A1
公开(公告)日：2017-01-12
申请号：US15113063
申请日：2015-09-03
发明人： Daisuke Washida , Toshikazu Matsuyama , Tetsuya Mitsumoto , Daisuke Inoue , Hideaki Matsushima , Yoshimi Hata , Hitohiko Ide , Shinya Kagei
IPC分类号： H01M4/505 , H01M4/04 , H01M10/0525 , C01G53/00 , H01M4/525
CPC分类号： H01M4/505 , C01G45/1228 , C01G51/50 , C01G53/50 , C01P2002/70 , C01P2002/74 , C01P2002/85 , C01P2004/64 , C01P2004/84 , C01P2006/12 , C01P2006/40 , C01P2006/82 , H01B1/08 , H01M4/0471 , H01M4/525 , H01M10/0525 , H01M2004/028 , H01M2220/20 , Y02E60/122
摘要： The present invention relates to a positive electrode active material including a lithium metal composite oxide having a layer crystal structure, and provides a novel positive electrode active material for a lithium secondary cell, which can suppress the reaction with an electrolyte solution and can raise the charge-discharge cycle ability of the cell, and can make good the output characteristics of the cell. There is proposed a positive electrode active material for a lithium secondary cell, including an active particle having a surface portion where one or a combination of two or more (these are referred to as “surface element A”) of the group consisting of Al, Ti and Zr is present, on a surface of a particle including a lithium metal composite oxide having a layer crystal structure and represented by the general formula: Li1+xM1−xO2 (wherein M is one or a combination of two or more (these are referred to as “constituent element M”) of the group consisting of Mn, Co, Ni, transition elements of from the third group elements to the 11th group elements of the periodic table, and typical elements up to the third period of the periodic table), wherein the ratio (CA/CM) of a concentration CA of the surface element A to a concentration CM of the constituent element M is higher than 0 and lower than 0.8, as measured by XPS; the amount of surface lithium impurity is smaller than 0.40% by weight; and in an X-ray diffraction pattern measured by XRD, the ratio (003)/(104) of an integral intensity of the peak originated from the (003) plane to an integral intensity of the peak originated from the (104) plane is higher than 1.15.
摘要翻译： 本发明涉及具有层状结晶结构的锂金属复合氧化物的正极活性物质，并且提供了一种新型的用于锂二次电池的正极活性物质，其可以抑制与电解质溶液的反应并且可以提高电荷 - 电池的充电循环能力，可以使电池的输出特性更好。 提出了一种用于锂二次电池的正极活性物质，其包括具有表面部分的活性颗粒，所述表面部分是由Al组成的组中的两种或更多种（这些被称为“表面要素A”）的一种或两种以上的组合， Ti和Zr存在于包含具有层结晶结构并由以下通式表示的锂金属复合氧化物的颗粒的表面：Li1 + xM1-xO2（其中M是一个或两个或更多个的组合（这些是 称为“构成要素M”），由Mn，Co，Ni构成的元素，从周期表的第11族元素到第3族元素的过渡元素，以及直到周期表第3期的典型元素 ），其中通过XPS测量的表面元素A的浓度CA与构成元素M的浓度CM的比（CA / CM）高于0且低于0.8; 表面锂杂质的量小于0.40重量％; 并且在通过XRD测量的X射线衍射图中，源自（003）面的峰的积分强度与源自（104）面的峰的积分强度的比（003）/（104）为 高于1.15。
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