利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

91 条记录 (耗时 0.026 秒)

    Lithium Secondary Battery and Method for Producing the Same
    2.
    发明申请
    Lithium Secondary Battery and Method for Producing the Same 有权
    锂二次电池及其制造方法

    公开(公告)号：US20090325057A1

    公开(公告)日：2009-12-31

    申请号：US12227005

    申请日：2007-05-04

    申请人： Sun-kyu Kim ,  Seung-Don Choi ,  Hong-Kyu Park

    发明人： Sun-kyu Kim ,  Seung-Don Choi ,  Hong-Kyu Park

    IPC分类号： H01M10/04

    CPC分类号： H01M2/14 ,  H01M2/145 ,  H01M2/1646 ,  H01M2/166 ,  H01M4/0416 ,  H01M4/043 ,  H01M4/0435 ,  H01M4/1391 ,  H01M8/1004 ,  Y10T29/49108

    摘要： Disclosed is a method for producing a lithium secondary battery, the method comprising the steps of: (a) distributing or scattering insulating powder partially or totally onto a surface of at least one of a cathode, an anode and a separator; (b) forming an electrode assembly by using the cathode, the anode and the separator; and (c) introducing the electrode assembly into a casing and sealing the casing. A lithium secondary battery obtained from the method is also disclosed. The method for manufacturing a lithium secondary battery, including a step of scattering insulating powder partially or totally onto the surface of a separator or the surface of at least one electrode facing to the separator, significantly reduces generation of an internal short circuit between both electrodes caused by internal or external factors during the assemblage of a battery and generation of low-voltage defects, and thus significantly improves yield of desired batteries.

    摘要翻译： 公开了一种锂二次电池的制造方法，该方法包括以下步骤：（a）将绝缘粉末部分或全部分散或散布在阴极，阳极和隔膜中的至少一个的表面上; （b）通过使用阴极，阳极和隔板形成电极组件; 和（c）将电极组件引入壳体并密封壳体。 还公开了从该方法获得的锂二次电池。 锂二次电池的制造方法，包括将绝缘粉末部分或全部分散在隔膜的表面或与隔膜相对的至少一个电极的表面的步骤，显着减少了两电极之间的内部短路的产生 通过内部或外部因素在组装电池和产生低电压缺陷，从而显着提高所需电池的产量。

    Cathode mix having improved efficiency and energy density of electrode
    5.
    发明授权
    Cathode mix having improved efficiency and energy density of electrode 有权
    具有提高电极效率和能量密度的阴极混合物

    公开(公告)号：US08962185B2

    公开(公告)日：2015-02-24

    申请号：US12709011

    申请日：2010-02-19

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

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

    IPC分类号： H01M4/52 ,  H01M4/58 ,  C01B25/37 ,  H01M4/136 ,  H01M10/052 ,  H01M6/50

    CPC分类号： H01M4/5825 ,  C01B25/37 ,  H01M4/136 ,  H01M10/052 ,  H01M2006/5094

    摘要： Provided is a cathode mix for lithium secondary batteries, comprising 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.The cathode mix maximizes operational efficiency of batteries, minimizes electrode waste and thus reduces manufacturing costs of batteries. Furthermore, The cathode active material, wherein a molar fraction (1−x) of phosphorus (P) is lower than 1, according to the present invention contains both Fe2+ and Fe3+, thus advantageously causing no structural deformation, improving ionic conductivity, exhibiting superior rate properties, inhibiting IR drop upon charge/discharge, thereby imparting high energy density to batteries.

    摘要翻译： 提供一种用于锂二次电池的阴极混合物，其包含具有由下式I表示的组成的阴极活性材料：其中磷（P）的摩尔分数（1-x）在其中的LiFe（P1-XO4）（I） 范围为0.910至0.999，以使阴极活性材料的操作效率平衡至阳极活性材料的较低操作效率，并提高阴极活性材料的能量密度。 阴极混合物可最大限度地提高电池的运行效率，最大限度地减少电极浪费，从而降低电池的制造成本。 此外，根据本发明的磷（P）的摩尔分数（1-x）小于1的正极活性物质既含有Fe 2+和Fe 3+，因此有利地不引起结构变形，提高离子电导率，显示出优异的 速率特性，在充电/放电时抑制IR降低，从而赋予电池高的能量密度。

    Material for lithium secondary battery of high performance
    7.
    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：US08450013B2

    公开(公告)日：2013-05-28

    申请号：US12893176

    申请日：2010-09-29

    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： C01D1/00

    CPC分类号： H01M4/485 ,  C01G45/1228 ,  C01G51/50 ,  C01G53/006 ,  C01G53/50 ,  C01P2002/54 ,  C01P2002/72 ,  C01P2002/77 ,  C01P2002/88 ,  C01P2004/03 ,  C01P2004/84 ,  C01P2006/10 ,  C01P2006/37 ,  C01P2006/40 ,  C01P2006/80 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  Y02E60/122 ,  Y02P70/54 ,  Y10T436/15

    摘要： Provided is a cathode active material containing a Ni-based lithium mixed transition metal oxide. More specifically, the cathode active material comprises the lithium mixed transition metal oxide having a composition represented by Formula I of LixMyO2 wherein M, x and y are as defined in the specification, which is prepared by a solid-state reaction of Li2CO3 with a mixed transition metal precursor under an oxygen-deficient atmosphere, and has a Li2CO3 content of less than 0.07% by weight of the cathode active material as determined by pH titration. The cathode active material in accordance with the present invention and substantially free of water-soluble bases such as lithium carbonates and lithium sulfates and therefore has excellent high-temperature and storage stabilities and a stable crystal structure. A secondary battery comprising such a cathode active material exhibits a high capacity and excellent characteristics, and can be produced by an environmentally friendly method with low production costs and high production efficiency.

    摘要翻译： 提供含有Ni基锂混合过渡金属氧化物的正极活性物质。 更具体地说，阴极活性材料包括具有由Li x Mn 2 O的式I表示的组成的锂混合过渡金属氧化物，其中M，x和y如说明书中所定义，其通过Li 2 CO 3与混合的固态反应 过氧化物金属前体，并且通过pH滴定测定，Li2CO3含量小于正极活性物质的0.07重量％。 根据本发明的阴极活性材料，基本上不含碳酸锂和硫酸锂等水溶性碱，因此具有优异的高温保存稳定性和稳定的晶体结构。 包含这种正极活性物质的二次电池显示出高容量和优异的特性，并且可以通过环保的方法生产，生产成本低，生产效率高。