公开(公告)号：US08637189B2

公开(公告)日：2014-01-28

申请号：US13204549

申请日：2011-08-05

申请人： Kazuya Okabe ,  Yoshikatsu Ohtani ,  Yoshihiro Takaura

发明人： Kazuya Okabe ,  Yoshikatsu Ohtani ,  Yoshihiro Takaura

IPC分类号： H01M4/70

CPC分类号： H01M4/0435 ,  H01M4/661 ,  H01M4/667 ,  H01M4/668 ,  H01M4/70 ,  Y10T29/10

摘要： An electrode sheet includes a sheet of metal foil, at least one region coated with at least one active material layer subjected to working by rolling, the at least one coated region being provided in at least one central portion of the sheet of metal foil, at least one region uncoated with the at least one active material layer, the at least one uncoated region being provided in at least one edge portion of the sheet of metal foil, and at least one region subjected to working by drawing, the at least one drawn region being provided in at least a portion of the at least one uncoated region.

摘要翻译： 电极片包括一片金属箔，至少一个涂覆有至少一个经过轧制加工的活性材料层的区域，所述至少一个涂覆区域设置在金属箔片的至少一个中心部分中，在 至少一个未被涂覆有至少一个活性材料层的区域，所述至少一个未涂覆区域设置在所述金属箔片的至少一个边缘部分中，以及至少一个经受拉伸加工的区域，所述至少一个拉制 区域设置在所述至少一个未涂覆区域的至少一部分中。

公开(公告)号：US20120045689A1

公开(公告)日：2012-02-23

申请号：US13204549

申请日：2011-08-05

申请人： Kazuya OKABE ,  Yoshikatsu Ohtani ,  Yoshihiro Takaura

发明人： Kazuya OKABE ,  Yoshikatsu Ohtani ,  Yoshihiro Takaura

IPC分类号： H01M4/02 ,  H01M4/04 ,  B05D5/12

CPC分类号： H01M4/0435 ,  H01M4/661 ,  H01M4/667 ,  H01M4/668 ,  H01M4/70 ,  Y10T29/10

摘要： Embodiments of the present invention provide such things as an electrode sheet having little curl for a spiral wound battery and a manufacturing method therefor.An electrode sheet is such that active material layer(s) is/are present and has/have been subjected to working by rolling at entire surface(s) thereof, except for at least one uncoated region U, of electrode sheets) comprising sheet(s) of metal foil(s) S. Moreover, drawn region(s) is/are provided at region(s) uncoated with active material layer(s) in such uncoated region(s) U. By thus creating drawn region(s) at uncoated region(s) of the electrode sheet, curling of the electrode sheet is suppressed, and furthermore, when tension is applied to carry out winding of the electrode sheet and/or convey the electrode sheet to subsequent operation(s), there is reduced likelihood of occurrence of wrinkling and/or tearing in the long direction of the electrode sheet.

摘要翻译： 本发明的实施例提供了一种螺旋缠绕电池的卷曲小的电极片及其制造方法。 电极片是这样的，存在活性物质层，并且已经/已经通过在其整个表面上的轧制进行了加工，除了电极片的至少一个未涂覆区域U）包括片材 另外，在这样的未涂覆区域（U）中，在未涂覆有活性物质层的区域处提供拉伸区域。通过由此产生拉伸区域（s） ），电极片的未涂覆区域被抑制，电极片的卷曲被抑制，此外，当施加张力以进行电极片的卷绕和/或将电极片输送到随后的操作时， 在电极片的长度方向上产生起皱和/或撕裂的可能性降低。