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：US10862166B2

公开(公告)日：2020-12-08

申请号：US16078894

申请日：2018-01-12

Applicant: LG Chem, Ltd.

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

IPC: H01M10/0567 ,  C07F7/18 ,  H01M10/0525 ,  H01M10/42

Abstract: The present invention relates to a non-aqueous electrolyte solution for a lithium secondary battery, which includes a compound capable of suppressing an electrolyte solution side reaction in a high-temperature and high-voltage environment, and a lithium secondary battery in which cycle characteristics and stability are improved even during high-temperature and high-voltage charging by including the same.

公开(公告)号：US20200058960A1

公开(公告)日：2020-02-20

申请号：US16610637

申请日：2018-11-20

Applicant: LG Chem, Ltd.

Inventor： Sung Hoon Yu ,  Chul Haeng Lee ,  Yoo Sun Kang

IPC: H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0525 ,  C07F9/14 ,  C07F9/09

Abstract: An additive, a non-aqueous electrolyte for a lithium secondary battery including the same, and a lithium secondary battery including the same are disclosed herein. In some embodiments, an additive includes at least one compound selected from the group consisting of the compounds represented by Formula 1 and Formula 2. In some embodiments, a non-aqueous electrolyte includes a lithium salt, an organic solvent, and an additive including at least one compound selected from the group consisting of the compounds represented by Formula 1 and Formula 2.

公开(公告)号：US10454138B2

公开(公告)日：2019-10-22

申请号：US15735741

申请日：2016-10-26

Applicant: LG Chem, Ltd.

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

IPC: H01M10/0567 ,  H01M10/052 ,  H01M10/0569

Abstract: The present invention relates to: a non-aqueous electrolyte additive comprising, as a substituent, at least one cyano group and/or at least one fluorine element; a non-aqueous electrolyte for a lithium secondary battery, comprising the same; and a lithium secondary battery including the non-aqueous electrolyte.

公开(公告)号：US10263293B2

公开(公告)日：2019-04-16

申请号：US14908883

申请日：2015-09-10

Applicant: LG Chem, Ltd.

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

IPC: H01M10/42 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/058 ,  H01M4/04 ,  H01M4/133 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/44 ,  H01M10/04 ,  H01M4/62 ,  H01M4/66 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/02

Abstract: Provided is a method of preparing a lithium secondary battery which may simultaneously improve output characteristics and lifetime characteristics of the lithium secondary battery by preparing an electrode on which an SEI film is formed through a pretreatment process, putting an electrode assembly including the electrode in a battery case, and injecting an electrolyte thereinto.

公开(公告)号：US20160254572A1

公开(公告)日：2016-09-01

申请号：US14908883

申请日：2015-09-10

Applicant: LG CHEM, LTD.

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

IPC: H01M10/42 ,  H01M4/131 ,  H01M4/62 ,  H01M4/66 ,  H01M4/525 ,  H01M10/44 ,  H01M4/1391 ,  H01M4/04 ,  H01M4/133 ,  H01M10/0569 ,  H01M10/0568 ,  H01M10/0525 ,  H01M4/505

CPC classification number: H01M10/4235 ,  H01M4/0404 ,  H01M4/0435 ,  H01M4/0445 ,  H01M4/131 ,  H01M4/133 ,  H01M4/1391 ,  H01M4/505 ,  H01M4/525 ,  H01M4/623 ,  H01M4/625 ,  H01M4/661 ,  H01M10/049 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/058 ,  H01M10/446 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2220/20 ,  H01M2220/30 ,  H01M2300/0042

Abstract: Provided is a method of preparing a lithium secondary battery which may simultaneously improve output characteristics and lifetime characteristics of the lithium secondary battery by preparing an electrode on which an SEI film is formed through a pretreatment process, putting an electrode assembly including the electrode in a battery case, and injecting an electrolyte thereinto.

Abstract translation: 提供一种制备锂二次电池的方法，其可以通过预处理过程制备其上形成有SEI膜的电极，同时提高锂二次电池的输出特性和寿命特性，将包括该电极的电极组件放入电池 的情况，并且向其中注入电解质。

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：US20190341654A1

公开(公告)日：2019-11-07

申请号：US16078290

申请日：2018-01-18

Applicant: LG Chem, Ltd.

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

IPC: H01M10/0567 ,  H01M4/587 ,  H01M10/0525 ,  C07F7/04 ,  C07F9/535

Abstract: The present invention relates to a non-aqueous electrolyte solution for a lithium secondary battery which includes a compound acting as a HF scavenger, and a lithium secondary battery in which cycle life characteristics and high-temperature storage characteristics are improved by including the same.

公开(公告)号：US20190214683A1

公开(公告)日：2019-07-11

申请号：US16328308

申请日：2018-02-01

Applicant: LG Chem, Ltd.

Inventor： Sung Hoon Yu ,  Yoo Sun Kang

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/44

CPC classification number: H01M10/0567 ,  C07F9/6574 ,  C07F19/00 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/42 ,  H01M10/44 ,  H01M2300/0028

Abstract: The present invention relates to a non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery including the same, and particularly, to a non-aqueous electrolyte solution for a lithium secondary battery which includes a fluorine-containing compound capable of forming a stable film on the surface of an electrode as an additive, and a lithium secondary battery including the same.

公开(公告)号：US10026992B2

公开(公告)日：2018-07-17

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 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/052

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.