公开(公告)号：US20180083255A1

公开(公告)日：2018-03-22

申请号：US15708363

申请日：2017-09-19

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Sungyong KIM ,  Eun-Young GOH ,  Sangin PARK ,  Jinseon SHIN ,  Jongki LEE ,  Jiwoon LEE ,  Jinhyon LEE

IPC: H01M2/26 ,  H01M10/04

Abstract: A rechargeable battery includes an electrode assembly and first and second lead tabs. The electrode assembly includes at least one separator between a first electrode and a second electrode. The first and second lead tabs are respectively connected to the first and second electrodes and are drawn out of a case. The electrode assembly includes a first assembly having a first length in a first direction and a second assembly having a second length in the first direction shorter than the first length. The first assembly includes at least one first uncoated tab protruding from the first electrode and connected to the first lead tab, and at least one second uncoated tab protruding from the second electrode and connected to the second lead tab. The second assembly includes the at least one second uncoated tab.