公开(公告)号：US20190006637A1

公开(公告)日：2019-01-03

申请号：US15740962

申请日：2017-02-20

Applicant: LG CHEM, LTD.

Inventor： Yoo Jin AN ,  Hyung Ku YUN ,  In Gu AN ,  Dong Myung KIM

IPC: H01M2/02 ,  H01M2/10

Abstract: According to the present invention, grip feeling of an electronic device to which the battery is mounted may be improved by optimizing a shape of a battery, and miniaturization of the electronic device may be promoted at the same time. In order to achieve the above-described object, a battery is disclosed, the battery including: a first surface having a circumference of a closed curve having a curve; a second surface having a circumference of a closed curve having a curve; and a volume portion configured to connect the first surface to the second surface and defining a volume, wherein at least one of the first surface and the second surface has a circumference of the closed curve defined by connecting ends of each of two curves curved in the same direction to each other, and the first surface has an area different from that of the second surface.

公开(公告)号：US20170092906A1

公开(公告)日：2017-03-30

申请号：US15126156

申请日：2014-11-07

Applicant: LG CHEM, LTD.

Inventor： Hyun PARK ,  Hyung Ku YUN ,  In Gu AN ,  Eun Seok CHOI ,  Jin Woo CHOI ,  Yoo Jin AN

IPC: H01M2/06 ,  H01M2/30 ,  H01M10/0587 ,  H01M10/0583 ,  H01M10/0585 ,  H01M2/10 ,  H01M10/0525

CPC classification number: H01M2/06 ,  H01M2/0207 ,  H01M2/1022 ,  H01M2/1061 ,  H01M2/1072 ,  H01M2/1077 ,  H01M2/30 ,  H01M10/0413 ,  H01M10/0436 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/0583 ,  H01M10/0585 ,  H01M10/0587 ,  H01M2002/0205 ,  H01M2220/20 ,  H01M2220/30

Abstract: Disclosed herein is a battery cell configured to have a structure in which an electrode assembly, including a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode, is mounted in a battery case, wherein the electrode assembly includes two or more unit cells having different planar sizes, the unit cells being stacked in the height direction on the basis of a plane, at least one unit cell (a) selected from among the unit cells has an asymmetric structure formed on at least one side of the outer edge thereof on the basis of a middle axis crossing a main body of the unit cell (a) when viewed from above, and at least one unit cell (b) selected from among the unit cells has an indented portion indented from at least one side of the unit cell (b) toward the middle of the unit cell (b).