公开(公告)号：US20170133704A1

公开(公告)日：2017-05-11

申请号：US15331932

申请日：2016-10-24

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Kangmin KIM ,  Youngmin KIM

IPC: H01M10/04 ,  H01M10/0587 ,  H01M10/0525

CPC classification number: H01M10/0409 ,  H01M10/0431 ,  H01M10/0525 ,  H01M10/0587

Abstract: A materials exchanging device includes a supply material unit to couple to a supply material roll and supplying materials to a winding member; and a standby material unit to couple to a standby material roll and hinged to the supply material unit, wherein an angle of the standby material roll with respect to the supply material unit varies due to hinge-rotation of the standby material unit.

公开(公告)号：US20170125850A1

公开(公告)日：2017-05-04

申请号：US15292336

申请日：2016-10-13

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Kangmin KIM ,  Youngmin KIM

IPC: H01M10/0587 ,  B65H75/08 ,  B65H75/28 ,  H01M10/04 ,  H01M10/0525

CPC classification number: H01M10/0587 ,  B65H75/08 ,  B65H75/28 ,  H01M10/0431 ,  H01M10/0525

Abstract: A rolling device for a secondary battery includes a mandrel to roll a first electrode plate, a second electrode plate, and a separator interposed between the first electrode plate and the second electrode plate, the mandrel having a pair of clamps at a center of the mandrel, a blade surrounding the clamps while being spaced apart from the clamps, the blade having an elliptical cross-section and being divided into four sections, the first electrode plate, second electrode plate, and separator being rolled on the blade, and a rotating body coupled to an interior side of the blade, the rotating body being between the clamps and the blade.