公开(公告)号：US20210242502A1

公开(公告)日：2021-08-05

申请号：US17053821

申请日：2019-11-18

Applicant: LG CHEM, LTD.

Inventor： Yeyoung HA ,  Jaegil LEE

IPC: H01M10/0569 ,  H01M10/0567 ,  H01M10/054 ,  H01M4/38

Abstract: Discussed is an electrolyte solution for a lithium-sulfur battery including a lithium salt, an organic solvent and an additive, and a lithium-sulfur battery including the same, wherein the additive includes a heterocyclic compound containing at least one double bond, and a heterocycle of the heterocyclic compound comprises an oxygen atom or a sulfur atom.

公开(公告)号：US20210367232A1

公开(公告)日：2021-11-25

申请号：US17043892

申请日：2019-12-09

Applicant: LG CHEM, LTD.

Inventor： Gi Su PARK ,  Minsun SONG ,  Jaegil LEE ,  Kyungsik HONG ,  Jong Mo JUNG

IPC: H01M4/40 ,  H01M4/1395 ,  B65H35/00

Abstract: The present invention relates to an apparatus and a method for manufacturing a lithium electrode, comprising a cutting stage, a laser irradiation portion and a lithium metal film supply portion, in which a plurality of adsorption holes and a plurality of unit electrode pattern grooves are formed on the upper surface of the cutting stage.

公开(公告)号：US20210167385A1

公开(公告)日：2021-06-03

申请号：US16958599

申请日：2019-01-11

Applicant: LG CHEM, LTD.

Inventor： Jaegil LEE ,  Doo Kyung YANG ,  Yu Mi KIM ,  Yun Kyoung KIM ,  Eunkyung CHO

IPC: H01M4/583 ,  H01M4/36 ,  H01M4/04 ,  H01M4/38

Abstract: A positive electrode slurry composition, a positive electrode manufactured using the same, and a battery including the positive electrode. The positive electrode slurry composition includes a positive electrode active material, a binder, an alcohol, and water, wherein a content of the alcohol is in a range of 0.1 to 10% by weight, based on a total weight of the composition. The slurry composition for manufacturing a positive electrode has effects of highly improving the dispersibility of the positive electrode active material and the conductive material, decreasing the surface roughness of an electrode, and remarkably reducing a curling phenomenon in the electrode. Also, the slurry composition has an economic advantage in that a dispersing agent is not used or an amount of the dispersing agent used can be remarkably reduced.