公开(公告)号：US20180076451A1

公开(公告)日：2018-03-15

申请号：US15700768

申请日：2017-09-11

Applicant: LG Chem, Ltd.

Inventor： Seul Ki Kim ,  Jong Heon Seol ,  Hee Soo Na ,  Chan Sub Lee ,  Hyung Suk Cho ,  Jung Keun Yoo ,  Je Young Kim

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/62

CPC classification number: H01M4/366 ,  H01M4/13 ,  H01M4/62 ,  H01M4/625 ,  H01M4/667 ,  H01M4/668 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/021

Abstract: An electrode for a lithium secondary battery includes a current collector, primer layer formed on a side of the current collector and includes a first conductive agent, a first binder and a first dispersant. Further, an active material layer is formed on a side of the primer layer disposed opposite to the current collector and includes an active material. Additionally, the lithium secondary battery includes a positive electrode, a negative electrode or both, a separator disposed between the positive electrode and the negative electrode and an electrolyte. The structural stability and adhesion of the electrode is improved, a ratio of a binder in the active material layer is reduced and the internal resistance is reduced.

公开(公告)号：US10516160B2

公开(公告)日：2019-12-24

申请号：US15700768

申请日：2017-09-11

Applicant: LG Chem, Ltd.

Inventor： Seul Ki Kim ,  Jong Heon Seol ,  Hee Soo Na ,  Chan Sub Lee ,  Hyung Suk Cho ,  Jung Keun Yoo ,  Je Young Kim

IPC: H01M4/36 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/13 ,  H01M4/66 ,  H01M4/02 ,  H01M10/052

Abstract: An electrode for a lithium secondary battery includes a current collector, primer layer formed on a side of the current collector and includes a first conductive agent, a first binder and a first dispersant. Further, an active material layer is formed on a side of the primer layer disposed opposite to the current collector and includes an active material. Additionally, the lithium secondary battery includes a positive electrode, a negative electrode or both, a separator disposed between the positive electrode and the negative electrode and an electrolyte. The structural stability and adhesion of the electrode is improved, a ratio of a binder in the active material layer is reduced and the internal resistance is reduced.

公开(公告)号：US10481058B2

公开(公告)日：2019-11-19

申请号：US15724720

申请日：2017-10-04

Applicant: LG Chem, Ltd.

Inventor： Tae Gyun Noh ,  Bum Young Jung ,  Ki Woong Kim ,  Hee Soo Na ,  Oh Jun Kwon

IPC: G01N3/303 ,  H01M10/48

Abstract: The present invention relates to a safety test apparatus of a battery cell. The safety test apparatus of the battery cell comprises: a jig on which the battery cell is disposed on a top surface thereof; and an impact member comprising an impact rod supported on the top surface of the battery cell and a striking weight disposed above the jig to freely drop toward the jig and strike the impact rod so that an impact is applied to the battery cell, wherein the striking weight is provided in a pair and comprises left and right striking parts that respectively strike two striking points, which are spaced apart from each other, of the impact rod and a connection part connecting the left and right striking parts to each other.

公开(公告)号：US20180095020A1

公开(公告)日：2018-04-05

申请号：US15724720

申请日：2017-10-04

Applicant: LG Chem, Ltd.

Inventor： Tae Gyun Noh ,  Bum Young Jung ,  Ki Woong Kim ,  Hee Soo Na ,  Oh Jun Kwon

IPC: G01N3/303 ,  H01M10/48

CPC classification number: G01N3/303 ,  G01M7/08 ,  H01M10/4285 ,  H01M10/48

Abstract: The present invention relates to a safety test apparatus of a battery cell. The safety test apparatus of the battery cell comprises: a jig on which the battery cell is disposed on a top surface thereof; and an impact member comprising an impact rod supported on the top surface of the battery cell and a striking weight disposed above the jig to freely drop toward the jig and strike the impact rod so that an impact is applied to the battery cell, wherein the striking weight is provided in a pair and comprises left and right striking parts that respectivley strike two striking points, which are spaced apart from each other, of the impact rod and a connection part connecting the left and right striking parts to each other.