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    Binder with good rate property and long cycleability for lithium secondary battery
    1.
    发明申请
    Binder with good rate property and long cycleability for lithium secondary battery 有权
    锂二次电池具有良好的性能和循环性能好的粘合剂

    公开(公告)号：US20060257739A1

    公开(公告)日：2006-11-16

    申请号：US11399718

    申请日：2006-04-07

    申请人： Dong Ryu ,  Cha Ku ,  Chang Han ,  Byoung Kim ,  Ju Kim ,  Chang Koo

    发明人： Dong Ryu ,  Cha Ku ,  Chang Han ,  Byoung Kim ,  Ju Kim ,  Chang Koo

    IPC分类号： H01M4/62 ,  G01N27/416

    CPC分类号： H01M4/621 ,  H01M4/13 ,  H01M4/622 ,  H01M10/052 ,  H01M10/056

    摘要： Disclosed is a binder, which comprises polymer particles obtained by polymerization of: (a) 1˜80 parts by weight of a (meth)acrylic acid ester monomer; (b) 1˜20 parts by weight of an unsaturated carboxylic acid monomer; and (c) 0.001˜40 parts by weight of a vinyl monomer, based on 100 parts by weight of the binder polymer, and which allows electrode active material particles capable of lithium intercalation/deintercalation to be fixed and linked among themselves, and between the particles and a collector. An electrode comprising the binder, and a lithium secondary battery having the electrode are also disclosed. Further, a method for evaluating interrelation between wettability of a binder to an electrolyte and quality of a battery comprising the binder is disclosed. The binder shows excellent adhesion as well as excellent wettability to an electrolyte, and thus can improve rate characteristics and lifespan characteristics of a battery, when used in an electrode for a lithium secondary battery.

    摘要翻译： 公开了一种粘合剂，其包含聚合物颗粒，所述聚合物颗粒通过聚合得到：（a）1〜80重量份的（甲基）丙烯酸酯单体; （b）1〜20重量份的不饱和羧酸单体; 和（c）基于100重量份的粘合剂聚合物，0.001〜40重量份的乙烯基单体，并且其允许能够插入/脱嵌锂的电极活性物质颗粒彼此之间固定和连接 颗粒和收集器。 还公开了包含该粘合剂的电极和具有该电极的锂二次电池。 此外，公开了一种用于评估粘合剂对电解质的润湿性和包含粘合剂的电池质量之间的相互关系的方法。 粘合剂对于电解质显示出优异的粘附性和优异的润湿性，因此当用于锂二次电池的电极时，可以提高电池的速率特性和寿命特性。

    Constitution of the dispersant in the preparation of the electrode active material slurry and the use of the dispersant
    3.
    发明申请
    Constitution of the dispersant in the preparation of the electrode active material slurry and the use of the dispersant 有权
    分散剂在制备电极活性材料浆料中的组成和使用分散剂

    公开(公告)号：US20060257738A1

    公开(公告)日：2006-11-16

    申请号：US10551946

    申请日：2004-04-02

    申请人： Seok Koo Kim ,  Cha Ku ,  Soon Ahn

    发明人： Seok Koo Kim ,  Cha Ku ,  Soon Ahn

    IPC分类号： H01M4/62 ,  H01M4/58

    CPC分类号： H01M4/587 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/62 ,  H01M4/621 ,  H01M4/622 ,  H01M4/624 ,  H01M10/0525 ,  H01M2004/027

    摘要： Disclosed are anode active material slurry for a lithium secondary cell having improved dispersibility of an anode active material and a conductive agent, and a lithium secondary cell comprising the same. Particularly, the present invention is characterized by adding a dispersant comprising a polymer backbone capable of surface-adsorption and a side-chain having non-ionic surfactant properties in a small amount, to the anode active material slurry comprising a carbon-based anode active material that is capable of lithium ion intercalation/deintercalation, a conductive agent, a binder comprising a styrene-butadiene-based polymer resin, a thickener comprising a cellulose-based or an acrylate-based resin, and water.

    摘要翻译： 公开了具有改善的阳极活性物质和导电剂的分散性的锂二次电池的负极活性物质浆料和包含该负极活性物质的锂二次电池。 特别地，本发明的特征在于将包含能够表面吸附的聚合物主链和少量具有非离子表面活性剂的侧链的分散剂添加到包含碳基负极活性物质的负极活性材料浆料 能够进行锂离子嵌入/脱嵌，导电剂，包含苯乙烯 - 丁二烯类聚合物树脂的粘合剂，包含纤维素类或丙烯酸酯类树脂的增稠剂和水。