利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

91 条记录 (耗时 0.033 秒)

    Cathode materials and lithium secondary battery containing the same
    51.
    发明授权
    Cathode materials and lithium secondary battery containing the same 有权
    阴极材料和锂二次电池含有相同

    公开(公告)号：US08993167B2

    公开(公告)日：2015-03-31

    申请号：US12851888

    申请日：2010-08-06

    申请人： Sung kyun Chang ,  Hong-Kyu Park ,  Sinyoung Park

    发明人： Sung kyun Chang ,  Hong-Kyu Park ,  Sinyoung Park

    IPC分类号： H01M4/00 ,  H01M4/525 ,  H01M4/36 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/02

    CPC分类号： H01M4/525 ,  H01M4/366 ,  H01M4/62 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/028 ,  Y02E60/122 ,  Y02T10/7011

    摘要： Provided is a cathode active material composed of lithium nickel oxide represented by Formula 1, wherein the lithium nickel oxide contains nickel in an amount of 40% or higher, based on the total weight of transition metals, and the cathode active material comprises a first coating layer provided on the surface thereof and a second coating layer provided on the surface of the first coating layer, wherein the first coating layer is composed of a non-reactive material selected from the group consisting of oxides, nitrides, sulfides and mixtures or complexes thereof and the second coating layer is composed of a carbon-based material.

    摘要翻译： 本发明提供一种由式1所示的锂镍氧化物构成的正极活性物质，其中，所述锂镍氧化物含有基于过渡金属的总重量为40％以上的镍，所述阴极活性物质包含第一涂层 并且设置在第一涂层的表面上的第二涂层，其中第一涂层由选自氧化物，氮化物，硫化物及其混合物或络合物的非反应性材料组成 第二涂层由碳系材料构成。

    Material for lithium secondary battery of high performance
    55.
    发明授权
    Material for lithium secondary battery of high performance 有权
    锂二次电池材料性能高

    公开(公告)号：US08426066B2

    公开(公告)日：2013-04-23

    申请号：US12896025

    申请日：2010-10-01

    申请人： Hong-Kyu Park ,  Sun sik Shin ,  Sin young Park ,  Ho suk Shin ,  Jens M. Paulsen

    发明人： Hong-Kyu Park ,  Sun sik Shin ,  Sin young Park ,  Ho suk Shin ,  Jens M. Paulsen

    IPC分类号： C01D3/00

    CPC分类号： H01M4/131 ,  C01G45/1228 ,  C01G51/50 ,  C01G53/50 ,  C01P2002/54 ,  C01P2002/72 ,  C01P2002/77 ,  C01P2002/88 ,  C01P2004/03 ,  C01P2004/84 ,  C01P2006/10 ,  C01P2006/37 ,  C01P2006/40 ,  C01P2006/80 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M2004/028 ,  Y02E60/122 ,  Y02P70/54

    摘要： Provided is a lithium mixed transition metal oxide having a composition represented by Formula I of LixMyO2 (M, x and y are as defined in the specification)having mixed transition metal oxide layers (“MO layers”) comprising Ni ions and lithium ions, wherein lithium ions intercalate into and deintercalate from the MO layers and a portion of MO layer-derived Ni ions are inserted into intercalation/deintercalation layers of lithium ions (“reversible lithium layers”) thereby resulting in the interconnection between the MO layers. The lithium mixed transition metal oxide of the present invention has a stable layered structure and therefore exhibits improved stability of the crystal structure upon charge/discharge. In addition, a battery comprising such a cathode active material can exhibit a high capacity and a high cycle stability. Further, such a lithium mixed transition metal oxide is substantially free of water-soluble bases, and thereby can provide excellent storage stability, decreased gas evolution and consequently superior high-temperature stability with the feasibility of low-cost mass production.

    摘要翻译： 本发明提供具有由Ni x离子和锂离子组成的混合过渡金属氧化物层（“MO层”）的LixMyO2（M，x和y如说明书中所定义）的式I所示组成的锂混合过渡金属氧化物，其中 锂离子从MO层插入和脱嵌，并且将一部分MO层衍生的Ni离子插入到锂离子（“可逆锂层”）的嵌入/脱嵌层中，从而导致MO层之间的互连。 本发明的锂混合过渡金属氧化物具有稳定的层状结构，因此在充放电时显示出晶体结构的稳定性提高。 此外，包含这种阴极活性材料的电池可以表现出高容量和高循环稳定性。 此外，这种锂混合过渡金属氧化物基本上不含水溶性碱，从而可以提供优异的储存稳定性，降低的气体逸出性以及因此优异的高温稳定性以及低成本批量生产的可行性。

    Cathode active material for lithium secondary battery
    56.
    发明授权
    Cathode active material for lithium secondary battery 有权
    锂二次电池用阴极活性物质

    公开(公告)号：US08377594B2

    公开(公告)日：2013-02-19

    申请号：US12837897

    申请日：2010-07-16

    申请人： Sung kyun Chang ,  Hong-Kyu Park ,  Sinyoung Park

    发明人： Sung kyun Chang ,  Hong-Kyu Park ,  Sinyoung Park

    IPC分类号： H01M4/50

    CPC分类号： H01M4/602 ,  H01M4/505 ,  H01M4/525 ,  H01M4/60 ,  H01M10/052 ,  Y02T10/7011

    摘要： Disclosed herein is a cathode active material based on lithium nickel-manganese-cobalt oxide represented by Formula 1, wherein the lithium nickel-manganese-cobalt oxide has a nickel content of at least 40% among overall transition metals and is coated with a conductive polymer at a surface thereof. A lithium secondary battery having the disclosed cathode active material has advantages of not deteriorating electrical conductivity while enhancing high temperature stability, so as to efficiently provide high charge capacity.

    摘要翻译： 本文公开了一种基于由式1表示的锂镍锰 - 氧化钴的正极活性材料，其中锂镍锰 - 钴氧化物的镍含量在总过渡金属中至少为40％，并且涂覆有导电聚合物 在其表面。 具有所公开的阴极活性物质的锂二次电池具有在提高高温稳定性的同时不劣化导电性的优点，从而有效地提供高的充电容量。

    CATHODE ACTIVE MATERIAL PROVIDING IMPROVED EFFICIENCY AND ENERGY DENSITY OF ELECTRODE
    58.
    发明申请
    CATHODE ACTIVE MATERIAL PROVIDING IMPROVED EFFICIENCY AND ENERGY DENSITY OF ELECTRODE 有权
    阴极活性材料提高电极效率和能量密度

    公开(公告)号：US20110287315A1

    公开(公告)日：2011-11-24

    申请号：US13124421

    申请日：2009-10-22

    申请人： Sanghoon Choy ,  Yong Tae Lee ,  Hong-Kyu Park ,  Soo Min Park ,  Hyo-shik Kil ,  Cheol-Hee Park ,  Ji Eun Lee

    发明人： Sanghoon Choy ,  Yong Tae Lee ,  Hong-Kyu Park ,  Soo Min Park ,  Hyo-shik Kil ,  Cheol-Hee Park ,  Ji Eun Lee

    IPC分类号： H01M4/52 ,  H01M4/525 ,  H01M4/64 ,  B82Y30/00

    CPC分类号： H01M4/5825 ,  C01B25/45 ,  H01M4/136 ,  H01M2006/5094

    摘要： Provided is a cathode active material having a composition represented by the following Formula I: LiFe(P1-XO4) (I) wherein a molar fraction (1-x) of phosphorus (P) is in the range of 0.910 to 0.999, to allow operational efficiency of the cathode active material to be leveled to a lower operational efficiency of an anode active material and improve energy density of the cathode active material. Furthermore, a cathode active material, wherein a molar fraction (1-x) of phosphorus (P) is lower than 1, contains both Fe2+ and Fe3+, thus advantageously preventing structural deformation, improving ionic conductivity, exhibiting superior rate properties and inhibiting IR drop upon charge/discharge, thereby imparting high energy density to batteries.

    摘要翻译： 本发明提供具有以下式I表示的组成的正极活性物质：磷（P）的摩尔分数（1-x）为0.910〜0.999的LiFe（P1-XO4）（I），以允许 阴极活性材料的操作效率被平衡到负极活性材料的较低的操作效率并且改善阴极活性材料的能量密度。 此外，其中磷（P）的摩尔分数（1-x）低于1的正极活性材料含有Fe 2+和Fe 3+，从而有利地防止结构变形，改善离子电导率，表现出优异的速率性质和抑制IR降低 充电/放电，从而赋予电池高的能量密度。

    CATHODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY CONTAINING THE SAME
    59.
    发明申请
    CATHODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY CONTAINING THE SAME 有权
    阴极活性材料和含有它的锂二次电池

    公开(公告)号：US20110165463A1

    公开(公告)日：2011-07-07

    申请号：US12847138

    申请日：2010-07-30

    申请人： Sung kyun CHANG ,  Hong-Kyu Park ,  Sinyoung Park

    发明人： Sung kyun CHANG ,  Hong-Kyu Park ,  Sinyoung Park

    IPC分类号： H01M4/131

    CPC分类号： H01M4/625 ,  H01M4/366 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0525 ,  H01M2004/028

    摘要： Disclosed herein is a cathode active material based on lithium nickel oxide represented by Formula 1, wherein the lithium nickel oxide has a nickel content of at least 40% among overall transition metals and is coated with a compound not reacting with an electrolyte (“non-reactive material”), which is selected from a group consisting of oxides, nitrides, sulfides and a mixture or combination thereof not reacting with an electrolyte, as well as a carbon material, at a surface of the lithium nickel oxide.

    摘要翻译： 本文公开了一种基于由式1表示的锂镍氧化物的阴极活性材料，其中所述锂镍氧化物在总过渡金属中的镍含量至少为40％，并且涂覆有不与电解质反应的化合物（“ 活性物质“），其选自氧化物，氮化物，硫化物及其与电解质和碳材料在锂镍氧化物的表面处不反应的混合物或组合。

    HIGH POWER SECONDARY BATTERY SYSTEM COMPRISING ASYMMETRIC CHARGED CELLS
    60.
    发明申请
    HIGH POWER SECONDARY BATTERY SYSTEM COMPRISING ASYMMETRIC CHARGED CELLS 有权
    包含不对称充电电池的高功率二次电池系统

    公开(公告)号：US20110135972A1

    公开(公告)日：2011-06-09

    申请号：US12917631

    申请日：2010-11-02

    申请人： Jens M. Paulsen ,  Songhun Yoon ,  Hong-Kyu Park

    发明人： Jens M. Paulsen ,  Songhun Yoon ,  Hong-Kyu Park

    IPC分类号： H01M16/00 ,  H02J7/00

    CPC分类号： H01M10/441 ,  H02J7/0013 ,  Y02E60/12

    摘要： Disclosed herein is a battery system including two or more kinds of cell lines having different charge and discharge characteristics, wherein each cell line includes one or more battery cells connected in series with each other. In the battery system according to the present invention, the battery cells of at least one cell line exhibit a high-rate charge characteristic, whereas the battery cells of at least another cell line exhibit a high-rate discharge characteristic. Consequently, the high-rate charge and discharge characteristics are improved, and the balance between the charge and discharge characteristics is maintained, whereby the battery system according to the present invention is used as a power source having a high power.

    摘要翻译： 这里公开了包括具有不同充电和放电特性的两种或更多种细胞系的电池系统，其中每个电池线包括彼此串联连接的一个或多个电池单元。 在根据本发明的电池系统中，至少一个电池线路的电池单元呈现高速率充电特性，而至少另一个电池线路的电池单元表现出高速率放电特性。 因此，提高了高速率充放电特性，并且保持了充放电特性之间的平衡，由此将根据本发明的电池系统用作具有高功率的电源。