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    • 1. 发明申请
    • METHOD OF PRODUCING LITHIUM ION SECONDARY BATTERY
    • 生产锂离子二次电池的方法
    • US20140230240A1
    • 2014-08-21
    • US14347154
    • 2012-09-24
    • SUMITOMO BAKELITE CO., LTD.
    • Tatsuro SasakiYuichi Ichikawa
    • H01M10/04
    • H01M10/0431H01M10/0525H01M10/0587Y10T29/49108Y10T29/4911
    • A method of producing a lithium ion secondary battery includes: a first winding process of winding a positive electrode plate (2) in a roll shape to form a first roll (11) and to provide a curling tendency to the positive electrode plate (2), and of winding a negative electrode plate (3) in a roll shape to form a second roll (12) and to provide a curling tendency to the negative electrode plate (3); and a second winding process of unrolling the positive electrode plate (2) from the first roll (11), unrolling the negative electrode plate (3) from the second roll (12), and winding the unrolled positive electrode plate (2) and negative electrode plate (3) in a roll shape to form a third roll (13) while allowing the positive electrode plate (2) and the negative electrode plate (3) to overlap with each other and maintaining the curling tendency.
    • 锂离子二次电池的制造方法包括:卷绕正极板(2)以形成第一辊(11)并且向正极板(2)提供卷曲倾向的第一卷绕工序, 并且卷绕负极板(3)以形成第二辊(12)并且向负极板(3)提供卷曲趋势; 以及从所述第一辊(11)展开所述正极板(2)的第二卷绕工序,将所述负极板(3)从所述第二辊(12)展开,并且卷绕所述未拉出的正极板(2)和负极板 电极板(3)形成第三辊(13),同时允许正极板(2)和负极板(3)彼此重叠并保持卷曲倾向。