公开(公告)号：US11081729B2

公开(公告)日：2021-08-03

申请号：US16340269

申请日：2018-07-06

Applicant: LG Chem, Ltd.

Inventor： Hyun Seung Kim ,  Sung Hoon Yu ,  Jeong Woo Oh ,  Chul Haeng Lee

IPC: H01M10/0567 ,  C07C229/30 ,  C07D207/16 ,  C07D211/60 ,  C07D233/90 ,  C07D241/04 ,  C07D295/145 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M4/02

Abstract: The present invention relates to a non-aqueous electrolyte solution additive, and a non-aqueous electrolyte solution for a lithium-ion battery and a lithium-ion battery which include the same, and particularly, to a non-aqueous electrolyte solution, which may remove an acid generated by the decomposition of a lithium salt while being able to suppress the dissolution of metal impurities causing failure in the battery by using and including a Lewis base compound containing a propargyl group as a non-aqueous electrolyte solution additive for a lithium-ion battery, and a lithium secondary battery in which transition metal dissolution in a positive electrode and a low-voltage phenomenon are improved.

公开(公告)号：US10826063B2

公开(公告)日：2020-11-03

申请号：US16130019

申请日：2018-09-13

Applicant: LG Chem, Ltd.

Inventor： Sung Hoon Yu ,  Kyung Mi Lee ,  Doo Kyung Yang ,  Yoo Sun Kang ,  Jung Hoon Lee

IPC: H01M4/525 ,  H01M10/0525 ,  H01M4/505 ,  H01M6/16 ,  H01M10/0567 ,  H01M10/0569 ,  H01M4/485 ,  H01M4/62 ,  H01M10/052 ,  H01M4/60 ,  H01M4/02 ,  H01M10/0568

Abstract: The present invention may improve the lifetime characteristics of a lithium secondary battery, and particularly, may provide a non-aqueous electrolyte solution or cathode including a phosphate-based compound which may exhibit stable and excellent lifetime characteristics at high temperature and high voltage regardless of the moisture content or the presence of a pressing process of the electrode.

公开(公告)号：US20200044286A1

公开(公告)日：2020-02-06

申请号：US16338578

申请日：2018-07-06

Applicant: LG Chem, Ltd.

Inventor： Hyun Seung Kim ,  Sung Hoon Yu

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0568 ,  H01M10/0569 ,  C07D341/00

Abstract: The present invention relates to a non-aqueous electrolyte solution additive, and a non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery which include the same, and particularly, to a non-aqueous electrolyte solution additive including a compound based on a cyclic sulfur structure, and a secondary battery in which low-voltage failure due to metal dissolution may be improved by including the same.

公开(公告)号：US10170791B2

公开(公告)日：2019-01-01

申请号：US14245328

申请日：2014-04-04

Applicant: LG Chem, Ltd.

Inventor： Sung Hoon Yu ,  Doo Kyung Yang ,  Sun Sik Shin ,  Song Taek Oh ,  Yoo Sun Kang ,  Kyung Mi Lee ,  Jin Hyun Park ,  Jung Don Suk

IPC: H01M10/0565 ,  H01M10/052 ,  H01M10/058 ,  H01M4/505 ,  H01M4/58 ,  H01M10/0525

Abstract: Provided are a lithium secondary battery including a cathode, an anode, a separator, and a gel polymer electrolyte, wherein the gel polymer electrolyte includes an acrylate-based polymer and a charge voltage of the battery is in a range of 4.3 V to 5.0 V, and a method of preparing the lithium secondary battery. A high-voltage lithium secondary battery of the present invention has excellent capacity characteristics at a high voltage of 4.3 V or more.

公开(公告)号：US20170125846A1

公开(公告)日：2017-05-04

申请号：US15341034

申请日：2016-11-02

Applicant: LG Chem, Ltd.

Inventor： Sung Hoon Yu ,  Hyun Yeong Lee ,  Yoo Sun Kang ,  Kyung Mi Lee

IPC: H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0525

CPC classification number: H01M10/0567 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0025

Abstract: The present invention relates to an additive for a non-aqueous electrolyte solution which may improve overcharge safety, a non-aqueous electrolyte solution for a lithium secondary battery including the same, and a lithium secondary battery including the non-aqueous electrolyte solution.

公开(公告)号：US20150325879A1

公开(公告)日：2015-11-12

申请号：US14442023

申请日：2014-10-27

Applicant: LG CHEM, LTD.

Inventor： Sung Hoon Yu ,  Kyung Mi Lee ,  Doo Kyung Yang ,  Yoo Sun Kang ,  Jung Hoon Lee

IPC: H01M10/0567 ,  H01M4/505 ,  H01M4/60 ,  H01M10/0525 ,  H01M10/0569 ,  H01M4/525

CPC classification number: H01M4/525 ,  H01M4/485 ,  H01M4/505 ,  H01M4/60 ,  H01M4/62 ,  H01M6/168 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2004/028

Abstract: The present invention may improve the lifetime characteristics of a lithium secondary battery, and particularly, may provide a non-aqueous electrolyte solution or cathode including a phosphate-based compound which may exhibit stable and excellent lifetime characteristics at high temperature and high voltage regardless of the moisture content or the presence of a pressing process of the electrode.

Abstract translation: 本发明可以提高锂二次电池的寿命特性，特别是提供一种含有磷酸酯系化合物的非水电解液或阴极，其可以在高温高压下表现出稳定且优异的寿命特性，而与 水分含量或电极的压制过程的存在。

公开(公告)号：US11081728B2

公开(公告)日：2021-08-03

申请号：US16338578

申请日：2018-07-06

Applicant: LG Chem, Ltd.

Inventor： Hyun Seung Kim ,  Sung Hoon Yu

IPC: H01M10/0567 ,  C07D341/00 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M4/02

Abstract: The present invention relates to a non-aqueous electrolyte solution additive, and a non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery which include the same, and particularly, to a non-aqueous electrolyte solution additive including a compound based on a cyclic sulfur structure, and a secondary battery in which low-voltage failure due to metal dissolution may be improved by including the same.

公开(公告)号：US10923768B2

公开(公告)日：2021-02-16

申请号：US16086451

申请日：2018-01-15

Applicant: LG Chem, Ltd.

Inventor： Sung Hoon Yu ,  Kyung Mi Lee ,  Shul Kee Kim ,  Hyun Yeong Lee ,  Yoo Sun Kang

IPC: H01M10/0567 ,  C07C43/315 ,  C07C57/18 ,  C07D303/22 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569

Abstract: The present invention relates to an additive for a non-aqueous electrolyte solution, which may suppress the generation of metallic foreign matter causing a side effect in a battery while forming a stable film on the surface of an electrode, a non-aqueous electrolyte solution for a lithium secondary battery which includes the additive, and a lithium secondary battery including the non-aqueous electrolyte solution.

公开(公告)号：US20210036364A1

公开(公告)日：2021-02-04

申请号：US16635405

申请日：2019-02-12

Applicant: LG Chem, Ltd.

Inventor： Hyun Seung Kim ,  Chul Haeng Lee ,  Sung Hoon Yu ,  Hyun Yeong Lee

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M10/0569 ,  C07F9/572

Abstract: A non-aqueous electrolyte solution and a lithium secondary battery including the same are disclosed herein. In some embodiments, a non-aqueous electrolyte solution includes a lithium salt, an organic solvent, and a compound represented by Formula 1 as an additive. The compound has an excellent effect of removing a decomposition product, such as HF and PF5, generated from the lithium salt in the electrolyte solution. The lithium secondary battery has improved high-temperature storage characteristics by including the non-aqueous electrolyte solution.

公开(公告)号：US20200335822A1

公开(公告)日：2020-10-22

申请号：US16606972

申请日：2018-08-24

Applicant: LG Chem, Ltd.

Inventor： Sung Hoon Yu ,  Chul Haeng Lee ,  Hyun Seung Kim

IPC: H01M10/0567 ,  H01M10/0568 ,  H01M10/0525 ,  C07C69/96 ,  C07C309/67 ,  C07C305/18 ,  C07C305/14

Abstract: A non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery including the same are disclosed herein. In some embodiments, a non-aqueous electrolyte solution for a lithium secondary battery, includes an additive having metal ion adsorbability and capable of forming a stable ion conductive film on the surface of an electrode. In some embodiments, a lithium secondary battery including the same has an improved an abnormal voltage drop phenomenon.