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    • 29. 发明公开
    • 전극조립체와 이를 이용한 리튬 이차전지
    • 电极组件和锂可充电电池使用相同
    • KR1020070108757A
    • 2007-11-13
    • KR1020060041172
    • 2006-05-08
    • 삼성에스디아이 주식회사
    • 김천수여광수김선경
    • H01M10/04H01M10/38
    • H01M10/0431H01M2/0217H01M10/0525H01M10/0587H01M2010/4292Y02E60/122
    • An electrode assembly is provided to inhibit a short circuit by preventing a negative electrode plate from coming into contact with a positive electrode uncoated part, thereby improving safety. An electrode assembly includes: a positive electrode plate(230) having a positive electrode current collector(232), a positive electrode active material part(234) applied onto at least one surface of the positive electrode current collector, and a positive electrode uncoated part(236) in which the positive electrode current collector is exposed to the outside; a negative electrode plate(240) having a negative electrode current collector(242), a negative electrode active material part(244) applied onto at least one surface of the negative electrode current collector, and a negative electrode uncoated part(246) in which the negative electrode current collector is exposed to the outside; and a separator interposed between the positive electrode plate and the negative electrode plate. In the positive electrode active material part and the negative electrode material part facing each other, a coated area of the positive electrode active material part is formed greater than that of the negative electrode active material part.
    • 提供一种电极组件,通过防止负极板与正电极未涂覆部分接触来抑制短路,从而提高安全性。 电极组件包括:具有正极集电体(232)的正极板(230),施加在正极集电体的至少一个面上的正极活性物质部(234),以及正极未涂布部 (236),其中正极集电体暴露于外部; 具有负极集电体(242)的负极板(240),负极集电体的至少一个面上施加的负极活性物质部分(244)和负极未涂覆部分(246),其中 负极集电体暴露于外部; 以及插入在正极板和负极板之间的隔膜。 在正极活性物质部分和负极材料部分彼此面对的同时,正极活性物质部分的涂覆面积大于负极活性物质部分的涂层面积。