公开(公告)号：US20180254510A1

公开(公告)日：2018-09-06

申请号：US15758651

申请日：2016-11-18

Applicant: LG CHEM, LTD.

Inventor： Won Bin CHO ,  Zisheng WANG ,  Jin Woo LEE ,  Ji Sub JUNG ,  Hyun Jae CHOO

IPC: H01M10/052 ,  H01M10/058 ,  H01M10/04 ,  H01M2/02 ,  H01M2/10

CPC classification number: H01M10/052 ,  H01M2/02 ,  H01M2/0202 ,  H01M2/0212 ,  H01M2/0275 ,  H01M2/0287 ,  H01M2/10 ,  H01M10/0459 ,  H01M10/058

Abstract: Provided is a battery cell having a structure in which outer circumferential sides of a cell case are sealed by heat fusion in a state in which an electrode assembly including a cathode, an anode, and a separator is housed in a cell case together with an electrolyte solution, wherein the electrode assembly and the cell case have a structure in which both ends at positions opposite to each other are together curved in the same direction so that a curved surface is formed on an outer surface of the battery cell, and at least one of the heat-fused outer circumferential sides of the cell case is curved to adhere to a curved surface while forming an inner surface.

公开(公告)号：US20170279158A1

公开(公告)日：2017-09-28

申请号：US15504140

申请日：2015-09-16

Applicant: LG CHEM, LTD.

Inventor： Won Bin CHO ,  In Gu AN ,  Hyung Ku YUN ,  Dong-Myung KIM

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

CPC classification number: H01M10/0587 ,  H01M10/0431 ,  H01M10/0468 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/058 ,  H01M2004/027 ,  H01M2004/028 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011

Abstract: Disclosed herein is an electrode assembly including a plurality of unit cells, each of which is configured to have a structure including a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode, and a single separation sheet disposed between the unit cells while surrounding side surfaces of the unit cells, wherein the unit cells include unit cells wound together with the separation sheet from one end of the separation sheet toward the middle of the separation sheet to constitute a first stack part, unit cells wound together with the separation sheet from the other end of the separation sheet toward the middle of the separation sheet to constitute a second stack part, and a facing unit cell having one surface that contacts the first stack part in the state in which the separation sheet is disposed between the one surface of the facing unit cell and the first stack part and the other surface that contacts the second stack part in the state in which the separation sheet is disposed between the other surface of the facing unit cell and the second stack part, and the unit cells are stacked such that electrodes having opposite polarities are disposed in contact with each other in the state in which the separation sheet is disposed between the respective electrodes.