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公开(公告)号：US20190051900A1
公开(公告)日：2019-02-14
申请号：US16080175
申请日：2017-02-28
IPC分类号： H01M4/505 , H01M10/052 , H01M4/525 , 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：US09466829B2
公开(公告)日：2016-10-11
申请号：US13966788
申请日：2013-08-14
IPC分类号： H01M4/36 , H01M4/505 , H01M4/525 , H01M10/052
CPC分类号： H01M4/364 , H01M4/505 , H01M4/525 , H01M10/052 , Y02E60/122 , Y02T10/7011
摘要： Provided is a lithium-manganese-type solid solution positive electrode material capable of effectively suppressing gas generation in an initial cycle. Proposed is a lithium-manganese-type solid solution positive electrode material that includes a monoclinic structure of C2/m in a hexagonal structure of a space group R-3m. The lithium-manganese-type solid solution positive electrode material contains a solid solution expressed by a composition formula: xLi4/3Mn2/3O2+(1−x)LiMnαCoβNiγO2 (in the formula, 0.2≦α≦0.6, 0≦β≦0.4, and 0.2≦γ≦0.6). In the composition formula, x is equal to or more than 0.36 and less than 0.50.
摘要翻译： 提供能够有效地抑制初始循环中的气体产生的锂锰系固溶正极材料。 提出了一种锂 - 锰型固溶体正极材料，其包含空间群R-3m的六方结构中的C2 / m的单斜晶体结构。 锂锰型固溶体正极材料含有由以下组成式表示的固溶体：xLi4 / 3Mn2 / 3O2 +（1-x）LiMnαCoβNiO2（式中，0.2≤α≤0.6,0≤β≤0.4，以及 0.2≤γ≤0.6）。 在组成式中，x等于或大于0.36且小于0.50。
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公开(公告)号：US20160218362A1
公开(公告)日：2016-07-28
申请号：US14917283
申请日：2014-09-16
发明人： Shinya Kagei , Kyohei Yamaguchi , Yoshimi Hata
IPC分类号： H01M4/505 , H01M10/0525
CPC分类号： H01M4/505 , C01G51/50 , C01G53/50 , C01P2002/72 , C01P2004/61 , C01P2004/64 , C01P2006/11 , C01P2006/12 , C01P2006/40 , H01M4/525 , H01M10/052 , H01M10/0525 , H01M2004/028 , H01M2220/20
摘要： Provided is a positive electrode material for a lithium-ion cell, comprising a lithium metal composite oxide having a layer structure and being represented by the general formula Li1+xMa1−x−yMbyO2 (x=0.10 to 0.33, and y=0 to 0.3; Ma always contains Mn, and contains at least one or more elements selected from Ni and Co, and the Mn content in Ma is 30 to 80% by mass; and Mb is at least one or more elements selected from the group consisting of Al, Mg, Ti, Fe and Nb), wherein the positive electrode material has a primary particle average particle diameter of 1.0 μm or larger, and a tap density of 1.9 g/cm3 or higher.
摘要翻译： 本发明提供一种锂离子电池用正极材料，其具有层状结构的锂金属复合氧化物，由通式Li1 + xMa1-x-yMbyO2（x = 0.10〜0.33，y = 0〜0.3）表示。 ; Ma总是包含Mn，并且含有选自Ni和Co中的至少一种以上的元素，Ma中的Mn含量为30〜80质量％; Mb为选自Al中的至少一种以上的元素 ，Mg，Ti，Fe和Nb），其中正极材料的初级粒子平均粒径为1.0μm以上，振实密度为1.9g / cm 3以上。
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4.发明申请Negative Electrode Active Material for Nonaqueous Electrolyte Secondary Batteries 审中-公开用于非水电解质二次电池的负电极活性材料公开(公告)号：US20150194669A1
公开(公告)日：2015-07-09
申请号：US14412854
申请日：2013-07-08
IPC分类号： H01M4/36 , H01M4/38 , H01M10/052 , H01M4/583 , H01M4/62
CPC分类号： H01M4/366 , H01M4/134 , H01M4/364 , H01M4/386 , H01M4/583 , H01M4/587 , H01M4/622 , H01M4/625 , H01M4/626 , H01M10/052 , H01M2220/20 , H01M2220/30 , Y02T10/7011
摘要： Proposed is a novel negative electrode for nonaqueous electrolyte secondary batteries in which the battery capacity does not decrease even when charging and discharging are repeated. Proposed is a silicon-containing negative electrode active material for nonaqueous electrolyte secondary batteries, comprising negative electrode active material particles which are provided with a surface layer containing carbon and titanium or aluminum on the entirety or a portion of the surface of the active material.
摘要翻译： 提出了一种新型的非水电解质二次电池用负极，即使在重复充放电时电池容量也不会降低。 提出了一种非水电解质二次电池用含硅负极活性物质，其特征在于，在活性物质的整体或一部分表面上设置有含有碳，钛或铝的表面层的负极活性物质粒子。
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公开(公告)号：US20150147652A1
公开(公告)日：2015-05-28
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 2≦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＆nlE; z＆nlE; 0.3,0.3＆amp; nlE; y <0.6，M = 一种或多种选自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2＆nlE; b / a＆nlE; 8。
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公开(公告)号：US20150093641A1
公开(公告)日：2015-04-02
申请号：US14396510
申请日：2013-04-16
发明人： Tetsuya Mitsumoto , Hitohiko Ide , Shinya Kagei , Yoshimi Hata
IPC分类号： H01M4/131 , H01M10/0525 , H01M4/485 , H01M4/505 , H01M4/525
CPC分类号： H01M4/131 , C01G53/50 , C01P2004/51 , C01P2004/61 , C01P2006/11 , C01P2006/12 , C01P2006/14 , C01P2006/16 , C01P2006/40 , H01M4/36 , H01M4/485 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M2220/20 , Y02E60/122 , Y02T10/7011
摘要： Provided is a lithium metal compound oxide having a layered structure, which is very excellent as a positive electrode active material of a battery that is mounted on, particularly, an electric vehicle or a hybrid vehicle.Suggested is a lithium metal compound oxide having a layered structure which is expressed by general formula of Li1+xM1−xO2 (M represents metal elements including three elements of Mn, Co, and Ni). In the lithium metal compound oxide having a layered structure, D50 is more than 4 μm and less than 20 μm, a ratio of a primary particle area to a secondary particle area of secondary particles having a size corresponding to the D50 (“primary particle area/secondary particle area”) is 0.004 to 0.035, and the minimum value of powder crushing strength that is obtained by crushing a powder using a microcompression tester is more than 70 MPa.
摘要翻译： 提供具有层状结构的锂金属复合氧化物，其非常优异地作为安装在电动车辆或混合动力车辆上的电池的正极活性物质。 提出具有由通式Li 1 + x M 1-x O 2表示的层状结构的锂金属复合氧化物（M表示包含Mn，Co和Ni的三种元素的金属元素）。 在具有层状结构的锂金属复合氧化物中，D50大于4μm且小于20μm，一次粒子面积与二次粒子的二次粒子面积的比例对应于D50（“初级粒子面积 /二次粒子面积“）为0.004〜0.035，通过使用微压缩试验机粉碎粉末而得到的粉末破碎强度的最小值大于70MPa。
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7.发明申请Negative Electrode Active Material for Nonaqueous Electrolyte Secondary Batteries 审中-公开用于非水电解质二次电池的负电极活性材料公开(公告)号：US20150064555A1
公开(公告)日：2015-03-05
申请号：US14390695
申请日：2013-04-02
CPC分类号： H01M4/134 , H01M4/38 , H01M4/386 , H01M4/622 , H01M10/052 , H01M2004/021 , H01M2004/027 , H01M2300/0017
摘要： Provided is a novel negative electrode for nonaqueous electrolyte secondary batteries, which is capable of improving cycle characteristics and is also capable of suppressing aggregation of active material particles in a slurry. The negative electrode active material for nonaqueous electrolyte secondary batteries, which contains silicon and has a D50 of 0.1 μm to 5 μm, and the amount of water measured at 120° C. to 300° C. by the Karl-Fischer method (referred to as “amount of water”) per specific surface area (referred to as “CS”), that is, the amount of water/CS, of 0.1 to 80 ppm/(m2/cc).
摘要翻译： 提供了一种新型的非水电解质二次电池用负极，其能够改善循环特性，并且还能够抑制浆料中的活性物质粒子的聚集。 含有硅，D50为0.1μm〜5μm的非水电解质二次电池用负极活性物质和通过卡尔费休法测定的120℃〜300℃的水量（以下称为 每个比表面积（称为“CS”），即水量/ CS的“水量”为0.1〜80ppm /（m 2 / cc））。
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公开(公告)号：US20130157132A1
公开(公告)日：2013-06-20
申请号：US13769854
申请日：2013-02-19
IPC分类号： H01M4/38
CPC分类号： H01M4/383 , C01B3/0057 , C01P2002/77 , C22C19/007 , H01M4/385 , H01M10/345 , Y02E60/327
摘要： A hydrogen storage alloy is provided which has an extremely low Co content, and can maintain the drain (power) performance (especially pulse discharge characteristics), activity (degree of activity), and life performance at high levels. The hydrogen storage alloy is manufactured by weighing and mixing every material for the hydrogen storage alloy so as to provide an alloy composition represented by the general formula MmNiaMnbAlcCod or MmNiaMnbAlcCodFee, and controlling the manufacturing method and manufacturing conditions so that both the a-axis length and the c-axis length of the crystal lattice are in a predetermined range. Although it is sufficient if the a-axis length of the crystal lattice is 499 pm or more and the c-axis length is 405 pm or more, by further specifying the a-axis length and c-axis length depending on the values of ABx, a hydrogen storage alloy having high durability can be provided.
摘要翻译： 提供了具有极低Co含量的储氢合金，能够维持排水（功率）性能（特别是脉冲放电特性），活性（活度），寿命性能高。 通过对储氢合金的每种材料进行称量和混合来制造储氢合金，以提供由通式MmNiaMnbAlcCod或MmNiaMnbAlcCodFee表示的合金组成，并且控制制造方法和制造条件，使得a轴长度和 晶格的c轴长度在预定范围内。 虽然如果晶格的a轴长度为499μm以上且c轴长度为405μm以上，则通过根据ABx的值进一步确定a轴长度和c轴长度即可， 可以提供耐久性高的储氢合金。
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公开(公告)号：US10312508B2
公开(公告)日：2019-06-04
申请号：US15508184
申请日：2015-09-03
发明人： Tetsuya Mitsumoto , Daisuke Washida , Toshikazu Matsuyama , Daisuke Inoue , Hideaki Matsushima , Yoshimi Hata , Hitohiko Ide , Shinya Kagei
IPC分类号： H01M4/36 , H01M10/05 , H01M4/505 , H01M4/525 , C01G53/00 , H01M10/0525 , H01M4/62 , H01M4/02
摘要： A positive electrode active material comprising a lithium metal composite oxide having a layered crystal structure provides a novel lithium metal composite oxide powder which can suppress the reaction with an electrolytic solution and raise the charge-discharge cycle ability of a battery, and can improve the output characteristics of a battery. A lithium metal composite oxide powder comprises a particle having a surface portion where one or a combination of two or more (“surface element A”) of the group consisting of Al, Ti and Zr is present, on the surface of a particle comprising a lithium metal composite oxide having a layered crystal structure, wherein the amount of surface LiOH is smaller than 0.10% by weight, and the amount of surface Li2CO3 is smaller than 0.25% by weight; in an X-ray diffraction pattern, the ratio of an integral intensity of the (003) plane of the lithium metal composite oxide to that of the (104) plane thereof is higher than 1.15; and the amount of S obtained by a measurement using ICP is smaller than 0.10% by weight of the lithium metal composite oxide powder (100% by weight).
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公开(公告)号：US09640794B2
公开(公告)日：2017-05-02
申请号：US14396510
申请日：2013-04-16
发明人： Tetsuya Mitsumoto , Hitohiko Ide , Shinya Kagei , Yoshimi Hata
CPC分类号： H01M4/131 , C01G53/50 , C01P2004/51 , C01P2004/61 , C01P2006/11 , C01P2006/12 , C01P2006/14 , C01P2006/16 , C01P2006/40 , H01M4/36 , H01M4/485 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M2220/20 , Y02E60/122 , Y02T10/7011
摘要： Provided is a lithium metal compound oxide having a layered structure, which is very excellent as a positive electrode active material of a battery that is mounted on, particularly, an electric vehicle or a hybrid vehicle.Suggested is a lithium metal compound oxide having a layered structure which is expressed by general formula of Li1+xM1−xO2 (M represents metal elements including three elements of Mn, Co, and Ni). In the lithium metal compound oxide having a layered structure, D50 is more than 4 μm and less than 20 μm, a ratio of a primary particle area to a secondary particle area of secondary particles having a size corresponding to the D50 (“primary particle area/secondary particle area”) is 0.004 to 0.035, and the minimum value of powder crushing strength that is obtained by crushing a powder using a microcompression tester is more than 70 MPa.
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