公开(公告)号：US11367905B2

公开(公告)日：2022-06-21

申请号：US15740920

申请日：2017-03-30

申请人： LG Chem, Ltd.

发明人： Sung Hoon Yu

IPC分类号： H01M10/058 ,  H01M10/052 ,  H01M10/0569 ,  H01M50/44 ,  H01M50/46 ,  H01M50/411 ,  H01M50/449 ,  H01M4/04 ,  H01M4/505 ,  H01M4/525 ,  H01M4/64 ,  H01M10/04 ,  H01M4/02

摘要： The present invention relates to a method of preparing a secondary battery which includes providing a film layer, which includes a first solvent having a melting temperature of 25° C. or more and a viscosity of 1.5 cP or more, between a separator and an electrode (step 1), preparing an electrode assembly by using the electrode, the film layer, and the separator (step 2), and accommodating the electrode assembly in a case, injecting an injection solution including a second solvent, and sealing the case (step 3), and a secondary battery prepared by the method. According to the method of preparing a secondary battery of the preset invention, since electrolyte solution impregnability may be improved, performance and safety of the secondary battery may be further improved.

公开(公告)号：US10862166B2

公开(公告)日：2020-12-08

申请号：US16078894

申请日：2018-01-12

申请人： LG Chem, Ltd.

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

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

摘要： 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

申请人： LG Chem, Ltd.

发明人： Sung Hoon Yu ,  Chul Haeng Lee ,  Yoo Sun Kang

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

摘要： 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

申请人： LG Chem, Ltd.

发明人： Sung Hoon Yu ,  Yoo Sun Kang ,  Kyung Mi Lee

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

摘要： 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

申请人： LG Chem, Ltd.

发明人： Sung Hoon Yu ,  Yoo Sun Kang ,  Kyung Mi Lee

IPC分类号： 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

摘要： 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

申请人： LG CHEM, LTD.

发明人： Sung Hoon Yu ,  Yoo Sun Kang ,  Kyung Mi Lee

IPC分类号： 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分类号： 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

摘要： 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.

摘要翻译： 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：US11876177B2

公开(公告)日：2024-01-16

申请号：US16606972

申请日：2018-08-24

申请人： LG Chem, Ltd.

发明人： Sung Hoon Yu ,  Chul Haeng Lee ,  Hyun Seung Kim

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

CPC分类号： H01M10/0567 ,  C07C69/96 ,  C07C305/14 ,  C07C305/18 ,  C07C309/67 ,  H01M10/0525 ,  H01M10/0568 ,  H01M2300/0025

摘要： 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.

公开(公告)号：US11682794B2

公开(公告)日：2023-06-20

申请号：US16610637

申请日：2018-11-20

申请人： LG Chem, Ltd.

发明人： Sung Hoon Yu ,  Chul Haeng Lee ,  Yoo Sun Kang

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

CPC分类号： H01M10/0567 ,  C07F9/091 ,  C07F9/14 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0037

摘要： 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：US11476500B2

公开(公告)日：2022-10-18

申请号：US16635405

申请日：2019-02-12

申请人： LG Chem, Ltd.

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

IPC分类号： H01M10/0567 ,  H01M10/0525 ,  H01M10/0569

摘要： 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：US20210399345A1

公开(公告)日：2021-12-23

申请号：US17462912

申请日：2021-08-31

申请人： LG Chem, Ltd.

发明人： Sung Hoon Yu ,  Yoo Sun Kang

IPC分类号： H01M10/0567 ,  H01M10/0525 ,  H01M10/0568 ,  C07F9/6574 ,  H01M10/44 ,  H01M10/0569 ,  H01M4/48 ,  H01M4/587 ,  H01M4/36

摘要： 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.