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    Binder with good rate property and long cycleability for lithium secondary battery
    1.
    发明授权
    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：US08758937B2

    公开(公告)日：2014-06-24

    申请号：US13600378

    申请日：2012-08-31

    申请人： Dong Jo Ryu ,  Cha Hun Ku ,  Chang Sun Han ,  Byoung Yun Kim ,  Ju Hyun Kim ,  Chang Wan Koo

    发明人： Dong Jo Ryu ,  Cha Hun Ku ,  Chang Sun Han ,  Byoung Yun Kim ,  Ju Hyun Kim ,  Chang Wan Koo

    IPC分类号： H01M4/62

    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.

    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重量份不饱和羧酸单体; 和（c）0.001〜40重量份的乙烯基单体，基于100重量份的粘合剂聚合物，并且其允许能够嵌入/脱嵌的电极活性材料颗粒彼此之间固定并连接 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。

    LITHIUM SECONDARY BATTERY WITH IMPROVED ENERGY DENSITY
    3.
    发明申请
    LITHIUM SECONDARY BATTERY WITH IMPROVED ENERGY DENSITY 有权
    锂二次电池具有改善的能量密度

    公开(公告)号：US20120028134A1

    公开(公告)日：2012-02-02

    申请号：US13201385

    申请日：2010-02-16

    申请人： Hong Jeong Kim ,  Cha Hun Ku ,  Soo Ryoung Kim ,  Hong Kyu Park

    发明人： Hong Jeong Kim ,  Cha Hun Ku ,  Soo Ryoung Kim ,  Hong Kyu Park

    IPC分类号： H01M4/131 ,  H01M10/0525 ,  H01M10/0569

    CPC分类号： H01M10/052 ,  H01M4/364 ,  H01M4/505 ,  H01M4/525

    摘要： Provided is a lithium secondary battery with enhanced energy density including a cathode using a cathode active material containing lithium mixed transition metal oxide absorbing and discharging lithium ions, wherein a final discharge voltage is in the range of about 1.5 V to about 2.75 V. A final discharge voltage can be reduced to 1.5 V to 2.75 V from 3.0 V by using various lithium mixed transition metal oxides as a cathode active material, or by using the various lithium mixed transition metal oxides with the LCO-based cathode material mixed. Compared to typical LCO-based cathode materials of which capacity and energy density do not change even if a final discharge voltage is decreased, a cathode material of the present invention results in further improving capacity by 10-20% as the final discharge voltage is decreased.

    摘要翻译： 提供了具有增强的能量密度的锂二次电池，包括使用吸收和放出​​锂离子的锂混合过渡金属氧化物的阴极活性材料的阴极，其中最终放电电压在约1.5V至约2.75V的范围内。最终 通过使用各种锂混合过渡金属氧化物作为正极活性物质，或通过混合各种锂混合过渡金属氧化物与LCO-阴极材料混合，放电电压可以从3.0V降低至1.5V至2.75V。 与其最终放电电压降低时容量和能量密度也不变化的典型的LCO阴极材料相比，本发明的阴极材料随着最终放电电压的降低而进一步提高10-20％的容量 。

    Constitution of the dispersant in the preparation of the electrode active material slurry and the use of the dispersant
    5.
    发明授权
    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：US07862929B2

    公开(公告)日：2011-01-04

    申请号：US10551946

    申请日：2004-04-02

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

    发明人： Seok Koo Kim ,  Cha Hun Ku ,  Soon Ho 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。

    Non-aqueous electrolyte and electrochemical device with an improved safety
    6.
    发明授权
    Non-aqueous electrolyte and electrochemical device with an improved safety 有权
    非水电解质和电化学装置具有改进的安全性

    公开(公告)号：US08968938B2

    公开(公告)日：2015-03-03

    申请号：US12087813

    申请日：2007-01-12

    申请人： Young Soo Kim ,  Soon Ho Ahn ,  Joon Sung Bae ,  Cha Hun Ku ,  Soo Hyun Ha ,  Duk Hyun Ryu ,  Sei Lin Yoon

    发明人： Young Soo Kim ,  Soon Ho Ahn ,  Joon Sung Bae ,  Cha Hun Ku ,  Soo Hyun Ha ,  Duk Hyun Ryu ,  Sei Lin Yoon

    IPC分类号： H01M6/18 ,  H01M10/0567 ,  H01M10/0569 ,  H01M4/13 ,  H01M4/139 ,  H01M10/052 ,  H01M10/42

    CPC分类号： H01M10/0567 ,  H01M4/13 ,  H01M4/139 ,  H01M10/052 ,  H01M10/056 ,  H01M10/0569 ,  H01M10/4235 ,  H01M2300/004 ,  Y02E60/122 ,  Y02P70/54

    摘要： Disclosed are a non-aqueous electrolyte comprising a lithium salt and a solvent, the electrolyte containing, based on the weight of the electrolyte, 10-40 wt % of a compound of Formula 1 or its decomposition product, and 1-40 wt % of an aliphatic nitrile compound, as well as an electrochemical device comprising the non-aqueous electrolyte. Also disclosed is an electrochemical device comprising: a cathode having a complex formed between the surface of a cathode active material and an aliphatic nitrile compound; and an anode having formed thereon a coating layer containing a decomposition product of the compound of Formula 1. Moreover, disclosed is an electrochemical device comprising: a cathode having a complex formed between the surface of a cathode active material and an aliphatic nitrile compound; and a non-aqueous electrolyte containing the compound of Formula 1 or its decomposition product. In addition, disclosed is an electrochemical device comprising: an anode having formed thereon a coating layer containing a decomposition product of the compound of Formula 1; and a non-aqueous electrolyte containing the compound of Formula 1 or its decomposition product.

    摘要翻译： 公开了包含锂盐和溶剂的非水电解质，所述电解质包含基于电解质重量的10-40重量％的式1化合物或其分解产物，和1-40重量％的 脂族腈化合物，以及包含该非水电解质的电化学装置。 还公开了一种电化学装置，包括：阴极，其在阴极活性材料的表面和脂族腈化合物之间形成复合物; 以及在其上形成有包含式1化合物的分解产物的涂层的阳极。此外，公开了一种电化学装置，其包括：阴极，其在阴极活性物质的表面和脂族腈化合物之间形成复合体; 和含有式1化合物或其分解产物的非水电解质。 此外，公开了一种电化学装置，其包括：阳极，其上形成有包含式1化合物的分解产物的涂层; 和含有式1化合物或其分解产物的非水电解质。

    SEAL TAPE AND SECONDARY BATTERY USING THE SAME
    7.
    发明申请
    SEAL TAPE AND SECONDARY BATTERY USING THE SAME 有权
    密封带和二次电池使用相同

    公开(公告)号：US20120115025A1

    公开(公告)日：2012-05-10

    申请号：US13348953

    申请日：2012-01-12

    申请人： Sung-Jong Kim ,  Cha-Hun Ku

    发明人： Sung-Jong Kim ,  Cha-Hun Ku

    IPC分类号： H01M2/00 ,  H01M2/02

    CPC分类号： H01M2/08 ,  H01M10/0413 ,  H01M10/0431 ,  H01M10/0436 ,  H01M10/0468

    摘要： A seal tape capable of preventing an electrode assembly from moving in a secondary battery, and a secondary battery using the same are disclosed. The seal tape for a secondary battery is attached to the outer surface of the electrode assembly which is received in a battery case, and includes a first adhesive layer having an adhesive surface adhered to the outer surface of the electrode assembly, and a second adhesive layer having an adhesive layer at a side opposite to the first adhesive layer so as to adhere to the inner surface of the battery case.

    摘要翻译： 公开了能够防止电极组件在二次电池中移动的密封带和使用其的二次电池。 用于二次电池的密封带被附接到电池组件的外表面，该电极组件的外表面被容纳在电池壳体中，并且包括具有粘合表面粘附到电极组件的外表面上的第一粘合剂层和第二粘合剂层 在与第一粘合剂层相对的一侧具有粘合层，以便粘附到电池壳体的内表面。

    Seal tape and secondary battery using the same
    10.
    发明授权
    Seal tape and secondary battery using the same 有权
    密封胶带和二次电池使用相同

    公开(公告)号：US08980464B2

    公开(公告)日：2015-03-17

    申请号：US13348953

    申请日：2012-01-12

    申请人： Sung-Jong Kim ,  Cha-Hun Ku

    发明人： Sung-Jong Kim ,  Cha-Hun Ku

    IPC分类号： H01M2/08 ,  H01M2/02 ,  H01M10/04

    CPC分类号： H01M2/08 ,  H01M10/0413 ,  H01M10/0431 ,  H01M10/0436 ,  H01M10/0468

    摘要： A seal tape capable of preventing an electrode assembly from moving in a secondary battery, and a secondary battery using the same are disclosed. The seal tape for a secondary battery is attached to the outer surface of the electrode assembly which is received in a battery case, and includes a first adhesive layer having an adhesive surface adhered to the outer surface of the electrode assembly, and a second adhesive layer having an adhesive layer at a side opposite to the first adhesive layer so as to adhere to the inner surface of the battery case.

    摘要翻译： 公开了能够防止电极组件在二次电池中移动的密封带和使用其的二次电池。 用于二次电池的密封带被附接到电池组件的外表面，该电极组件的外表面被容纳在电池壳体中，并且包括具有粘合表面粘附到电极组件的外表面上的第一粘合剂层和第二粘合剂层 在与第一粘合剂层相对的一侧具有粘合层，以便粘附到电池壳体的内表面。