公开(公告)号：US20150147629A1

公开(公告)日：2015-05-28

申请号：US14264401

申请日：2014-04-29

Applicant: LG CHEM, LTD.

Inventor： Hyuk Su KIM ,  Dae Geun KU ,  Jun Woo HUH ,  Hyang Mok LEE ,  Chang Bum AHN

IPC: H01M2/26 ,  H01M2/16

CPC classification number: H01M2/1673 ,  H01G11/28 ,  H01M2/1646 ,  H01M2/1653 ,  H01M2/166 ,  H01M10/4235 ,  H01M2200/00 ,  Y02E60/13 ,  Y02T10/7022

Abstract: Disclosed is a technology for preventing electrodes in a secondary battery from being short-circuited with each other. An electrode assembly includes a cathode and anode of which a cathode collector and anode collector are coated with a cathode active material and anode active material, respectively, and a separator disposed between the cathode and the anode. An insulation layer is disposed on a tab part of the cathode collector constituting the cathode. Thus, an insulation layer may be disposed on an end (a tab part) of the cathode collector that is used as a tab of the cathode electrode in the structure of the electrode assembly to prevent the cathode from being physically short-circuited with the anode in the sequentially stacked structure of cathode/separator/anode.

Abstract translation: 公开了防止二次电池中的电极彼此短路的技术。 电极组件包括阴极和阳极，阴极集电体和阳极集电体分别涂覆有阴极活性材料和负极活性材料，以及设置在阴极和阳极之间的隔膜。 绝缘层设置在构成阴极的阴极集电体的突片部分上。 因此，绝缘层可以设置在阴极集电器的端部（突片部分）上，该阴极集电器用作电极组件结构中的阴极电极的突片，以防止阴极与阳极物理短路 在阴极/分离器/阳极的顺序层叠结构中。