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    Lithium secondary battery
    1.
    发明授权
    Lithium secondary battery 有权
    锂二次电池

    公开(公告)号：US06503661B1

    公开(公告)日：2003-01-07

    申请号：US09629950

    申请日：2000-08-01

    申请人： Chi-kyun Park ,  Archana Kakirde ,  Peikang Liu ,  Venkatesan Manivannan ,  Chul Chai ,  Dong-joon Ihm ,  Jon-ha Lee

    发明人： Chi-kyun Park ,  Archana Kakirde ,  Peikang Liu ,  Venkatesan Manivannan ,  Chul Chai ,  Dong-joon Ihm ,  Jon-ha Lee

    IPC分类号： H01M618

    CPC分类号： H01M10/0525 ,  H01M6/168 ,  H01M6/181 ,  H01M6/188 ,  H01M10/0565

    摘要： A composition for forming polymer electrolyte and a lithium secondary battery employing the polymer electrolyte prepared using the composition are provided. The composition for forming polymer solid electrolyte having a polymer resin, a plasticizer, a filler and a solvent, wherein the filler is synthetic zeolite having an affinity for an organic solvent or moisture. Therefore, the mechanical strength and ionic conductivity can be improved by adding synthetic zeolite as a filler when forming polymer electrolyte. Also, use of such polymer electrolyte makes it possible to prepare lithium secondary batteries having good high-current discharge characteristics and excellent discharge capacity characteristics even under repeated charge/discharge conditions.

    摘要翻译： 提供了一种用于形成聚合物电解质的组合物和使用该组合物制备的使用聚合物电解质的锂二次电池。 用于形成具有聚合物树脂，增塑剂，填料和溶剂的聚合物固体电解质的组合物，其中填料是对有机溶剂或水分具有亲和性的合成沸石。 因此，当形成聚合物电解质时，通过加入合成沸石作为填料可以改善机械强度和离子传导性。 此外，通过使用这样的高分子电解质，即使在重复的充放电条件下也能够制备具有良好的高电流放电特性和优异的放电容量特性的锂二次电池。

    Composition for forming electrode active material of lithium secondary battery, composition for forming separator and method of preparing lithium secondary battery using the compositions
    3.
    发明授权
    Composition for forming electrode active material of lithium secondary battery, composition for forming separator and method of preparing lithium secondary battery using the compositions 有权
    用于形成锂二次电池的电极活性材料的组合物，用于形成隔膜的组合物和使用该组合物制备锂二次电池的方法

    公开(公告)号：US06692873B1

    公开(公告)日：2004-02-17

    申请号：US09629951

    申请日：2000-08-01

    申请人： Chi-kyun Park ,  Archana Kakirde ,  Peikang Liu ,  Venkatesan Manivannan ,  Chul Chai ,  Dong-joon Ihm ,  Jon-ha Lee ,  Kwon-sun Roh

    发明人： Chi-kyun Park ,  Archana Kakirde ,  Peikang Liu ,  Venkatesan Manivannan ,  Chul Chai ,  Dong-joon Ihm ,  Jon-ha Lee ,  Kwon-sun Roh

    IPC分类号： H01M216

    CPC分类号： H01M2/145 ,  H01M2/1653 ,  H01M2/1673 ,  H01M10/04 ,  H01M10/052 ,  Y10T29/49115

    摘要： An electrode active material forming composition, a separator forming composition and a manufacturing method of a lithium secondary battery using the compositions are provided. The method for manufacturing a lithium secondary battery including the steps of (a) coating electrode active material compositions each comprising a electrode active material, a binder and a solvent on an electrode current collector to form a cathode and an anode, (b) forming a separator on both surfaces of the anode using a composition for forming a separator comprising a polymer resin, a plasticizer, a filler and a solvent; (c) disposing and fixedly adhering the cathode on the separator to form a battery structure, (d) drying the battery structure under a vacuum condition, and (e) impregnating an electrolytic solution into the resultant structure, wherein the plasticizer of the composition for forming the separator is at least one material selected from the group consisting of an ethylene glycol derivative, a cyclic carbonate, a non-cyclic carbonate and propylene glycol carbonate. Therefore, since a plasticizer can be removed under a vacuum condition, the time required for manufacturing a battery can be reduced and the manufacturing process becomes simplified, thereby improving the productivity. Also, since an organic solvent extraction process using an organic solvent is not necessary, unlike in the conventional art, the cost required for a recovery facility of an organic solvent can be reduced. Further, uniform pores are formed in electrodes and a separator, the porosity characteristics are excellent, and adhesion between the separator and the electrodes is excellent, thereby exhibiting excellent high-rate, lifetime, and low-temperature characteristics.

    摘要翻译： 提供电极活性物质形成组合物，隔膜形成用组合物和使用该组合物的锂二次电池的制造方法。 一种锂二次电池的制造方法，包括以下步骤：（a）在电极集电体上涂布均包含电极活性物质，粘合剂和溶剂的电极活性物质组合物，形成阴极和阳极，（b） 使用用于形成包含聚合物树脂，增塑剂，填料和溶剂的隔膜的组合物的阳极的两个表面上的隔板; （c）将阴极设置并固定在隔板上以形成电池结构，（d）在真空条件下干燥电池结构，和（e）将电解液浸渍到所得结构中，其中用于 形成隔膜的是至少一种选自乙二醇衍生物，环状碳酸酯，非环状碳酸酯和丙二醇碳酸酯的材料。 因此，由于可以在真空条件下去除增塑剂，所以可以减少制造电池所需的时间，并且制造过程变得简化，从而提高生产率。 此外，由于不需要使用有机溶剂的有机溶剂萃取方法，与常规技术不同，可以降低有机溶剂的回收设备所需的成本。 此外，在电极和隔膜中形成均匀的孔，孔隙率特性优异，隔板和电极之间的粘附性优异，因此表现出优异的高速率，寿命和低温特性。

    Method of measuring residual capacity of a Ni/MH cell
    4.
    发明授权
    Method of measuring residual capacity of a Ni/MH cell 失效
    测量Ni / MH电池剩余容量的方法

    公开(公告)号：US5701078A

    公开(公告)日：1997-12-23

    申请号：US501823

    申请日：1995-07-13

    申请人： Jai-Young Lee ,  Hwan-Cheol Lee ,  Jon-Ha Lee ,  Han-Ho Lee ,  Dong-Myung Kim

    发明人： Jai-Young Lee ,  Hwan-Cheol Lee ,  Jon-Ha Lee ,  Han-Ho Lee ,  Dong-Myung Kim

    IPC分类号： G01R31/36 ,  G01N27/27

    CPC分类号： G01R31/3662 ,  Y10S320/21

    摘要： The present invention relates to a method of measuring residual capacity of a Ni/MH (nickel/metal hydride) cell by measuring the change in the electrical resistivity of a Ni/MH cell according to the change of the concentration of hydrogen in metal hydride. According to the present invention, a method for measuring residual capacity of a Ni/MH cell comprises the steps of measuring electrical resistivity of a first Ni/MH cell, and determining the residual capacity of the first Ni/MH cell (i) from a predetermined data of n-pairs of electrical resistivity values and residual capacity values of a second Ni/MH cell which has substantially the same composition as the composition of the first Ni/MH cell, or (ii) based on a predetermined functional relationship between the electrical resistivity and residual capacity of the second Ni/MH cell. The series of the predetermined data or the predetermined functional relationship represents substantially a linear proportionally between the resistivity and the logarithmic value of the residual capacity. As the discharge reaction proceeds in the cell, metal hydride in the anode is reduced and loses hydrogen, and thus the hydrogen concentration at anode becomes lower. Accordingly, the relationship between the residual capacity and the resistivity of a Ni/MH cell can be obtained by measuring the residual capacity and the resistivity of the cell depending on the degree of discharge, therefore the residual capacity can be readily detected by measuring only the resistivity of the cell.

    摘要翻译： 本发明涉及一种通过根据金属氢化物中的氢浓度的变化来测量Ni / MH电池的电阻率的变化来测量Ni / MH（镍/金属氢化物）电池的残余容量的方法。 根据本发明，用于测量Ni / MH电池的剩余容量的方法包括以下步骤：测量第一Ni / MH电池的电阻率，以及从第一Ni / MH电池确定第一Ni / MH电池（i）的剩余容量 具有与第一Ni / MH电池的组成基本相同的组成的第二Ni / MH电池的n对电阻率值和剩余容量值的预定数据，或者（ii）基于第一Ni / 第二Ni / MH电池的电阻率和剩余容量。 预定数据或预定功能关系的一系列在电阻率与剩余容量的对数值之间基本成比例地表示线性。 随着电池中的放电反应进行，阳极中的金属氢化物减少并且损失氢，因此阳极中的氢浓度变低。 因此，可以通过根据放电度测量电池的剩余容量和电阻率来获得Ni / MH电池的残留容量和电阻率之间的关系，因此可以容易地通过仅测量电池容量来检测剩余容量 电池的电阻率。

    Method for preparing lithium ion polymer battery
    7.
    发明授权
    Method for preparing lithium ion polymer battery 有权
    锂离子聚合物电池的制备方法

    公开(公告)号：US06794088B2

    公开(公告)日：2004-09-21

    申请号：US10387061

    申请日：2003-03-11

    申请人： Kwon-Sun Roh ,  Jae-Myoung Lee ,  Jon-Ha Lee

    发明人： Kwon-Sun Roh ,  Jae-Myoung Lee ,  Jon-Ha Lee

    IPC分类号： H01M1008

    CPC分类号： H01M10/058 ,  H01M10/0525 ,  H01M10/0565 ,  H01M2300/0025 ,  H01M2300/0085 ,  Y10T29/49108

    摘要： The lithium ion polymer battery having high capacity, capacity retention and cycling life is prepared by gelating a gel polymer electrolyte composition comprising an organic solvent, a lithium salt, and a gelling agent composed of a nitrogen-containing polymer and an epoxy group-containing polymer at room temperature according to the present invention free from heating step at a low cost.

    摘要翻译： 具有高容量，容量保持和循环寿命的锂离子聚合物电池通过将包含有机溶剂，锂盐和由含氮聚合物和含环氧基的聚合物组成的胶凝剂的凝胶聚合物电解质组合物凝胶化而制备 在本发明的室温下以低成本无加热步骤。