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    • 13. 发明申请
    • Lithium Secondary Battery and Method for Producing the Same
    • 锂二次电池及其制造方法
    • US20090325057A1
    • 2009-12-31
    • US12227005
    • 2007-05-04
    • Sun-kyu KimSeung-Don ChoiHong-Kyu Park
    • Sun-kyu KimSeung-Don ChoiHong-Kyu Park
    • H01M10/04
    • H01M2/14H01M2/145H01M2/1646H01M2/166H01M4/0416H01M4/043H01M4/0435H01M4/1391H01M8/1004Y10T29/49108
    • 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.
    • 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。
    • 15. 发明申请
    • LITHIUM MANGANESE SECONDARY BATTERY
    • 锂锰锰二次电池
    • US20070202411A1
    • 2007-08-30
    • US11676723
    • 2007-02-20
    • Sun Kyu KIMKyung Min JUNSeung Don CHOIHong Kyu PARK
    • Sun Kyu KIMKyung Min JUNSeung Don CHOIHong Kyu PARK
    • H01M4/62H01M4/58H01M4/50
    • H01M4/131H01M4/133H01M4/505H01M4/62H01M10/0525Y02T10/7011
    • Disclosed is a manganese-based lithium secondary battery comprising a cathode containing manganese-based lithium metal oxide, an anode, and an electrolyte, wherein the anode comprises an anode active material in which a Mn scavenger capable of reducing manganese ions on a surface by conducting or semiconducting properties is coated on part or all of anode active material particles. Through the use of the Mn scavenger, manganese ion dissolved from the manganese-based cathode active material into the electrolyte is preferentially deposited on the Mn scavenger coated on the surface of the anode active material particles, such that the dissolved manganese ion is inhibited from being deposited directly on the surface of the anode active material, and a decomposition of the electrolyte with the deposited manganese component is inhibited. Accordingly, the use of the Mn scavenger can provide a manganese-based lithium secondary battery having excellent storage performance.
    • 公开了一种锰基锂二次电池,其包含含有锰基锂金属氧化物的阴极,阳极和电解质,其中所述阳极包括负极活性材料,其中能够通过导电在表面上还原锰离子的Mn清除剂 或半导体性质涂覆在部分或全部阳极活性材料颗粒上。 通过使用Mn清除剂,将从锰系阴极活性物质溶解到电解质中的锰离子优先沉积在涂覆在负极活性物质粒子表面上的Mn清除剂上,使得溶解的锰离子被抑制 直接沉积在阳极活性材料的表面上,并且电解质与沉积的锰组分的分解被抑制。 因此,使用Mn清除剂可以提供具有优良储存性能的锰基锂二次电池。