公开(公告)号：US20190013520A1

公开(公告)日：2019-01-10

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

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：US10115968B2

公开(公告)日：2018-10-30

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 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/505 ,  H01M6/16 ,  H01M4/60 ,  H01M10/0569 ,  H01M4/485 ,  H01M4/62 ,  H01M10/052 ,  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：US20180198157A1

公开(公告)日：2018-07-12

申请号：US15737503

申请日：2017-03-21

Applicant: LG Chem, Ltd.

Inventor： Sung Hoon Yu ,  Kyung Mi Lee

IPC: H01M10/0525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M10/0585 ,  H01M4/131 ,  H01M4/66 ,  H01M2/16

Abstract: The present invention relates to a non-aqueous electrolyte additive, and a non-aqueous electrolyte for a lithium secondary battery including the same and a lithium secondary battery, and particularly, to a non-aqueous electrolyte additive having a nitrile group and a propargyl group, and a non-aqueous electrolyte for a lithium secondary battery and a lithium secondary battery, which include the non-aqueous electrolyte additive so that capacity and cycle lifespan characteristics at high temperature can be improved.

公开(公告)号：US09882239B2

公开(公告)日：2018-01-30

申请号：US14248448

申请日：2014-04-09

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 ,  C08L33/18 ,  H01M4/505 ,  H01M4/525

CPC classification number: H01M10/0565 ,  C08L33/18 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M2300/0085 ,  Y02E60/122 ,  C08F2222/322 ,  C08F2222/104

Abstract: Provided are a composition for a gel polymer electrolyte including i) an electrolyte solution solvent, ii) an ionizable lithium salt, iii) a polymerization initiator, and iv) a monomer having a functional group bondable to metal ions, and a lithium secondary battery including the composition for a gel polymer electrolyte.In a case where the composition for a gel polymer electrolyte of the present invention is used in a lithium secondary battery, since the movement of metal ions dissolved from a cathode to an anode may be prevented or the precipitation of metal on the anode may be reduced, the lifetime of the battery may not only be improved but capacity characteristics of the battery may also be excellent even in the case in which the battery is charged at a high voltage as well as normal voltage.

公开(公告)号：US20140220452A1

公开(公告)日：2014-08-07

申请号：US14247679

申请日：2014-04-08

Applicant: LG CHEM, LTD.

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

IPC: H01M10/0565 ,  H01M4/134 ,  H01M10/052

CPC classification number: H01M10/0565 ,  H01M4/134 ,  H01M4/362 ,  H01M4/386 ,  H01M10/052 ,  H01M10/058 ,  H01M2300/0085 ,  Y10T29/49108

Abstract: Provided are a lithium secondary battery including a cathode, an anode, a separator, and a gel polymer electrolyte, wherein i) the anode includes a silicon (Si)-based anode active material, ii) the gel polymer electrolyte is formed by polymerizing a composition that includes a monomer having a functional group bondable to metal ions, and iii) a charge voltage of the battery is in a range of 3.0 V to 5.0 V.Since the lithium secondary battery of the present invention may prevent the movement of metal ions dissolved from a cathode to an anode or reduce the precipitation of metal on the anode, the lifetime of the battery may not only be improved but capacity characteristics of the battery may also be excellent even in the case in which the battery is charged at a high voltage as well as normal voltage.

Abstract translation: 提供包括阴极，阳极，隔膜和凝胶聚合物电解质的锂二次电池，其中i）阳极包括基于硅（Si）的阳极活性材料，ii）凝胶聚合物电解质通过聚合 包括具有可与金属离子键合的官能团的单体的组合物，以及iii）电池的充电电压在3.0V至5.0V的范围内。由于本发明的锂二次电池可以防止金属离子的移动 从阴极溶解到阳极或减少金属在阳极上的沉淀，电池的寿命不仅可以改善，而且即使在电池高电荷的情况下，电池的容量特性也可以是优异的 电压以及正常电压。

公开(公告)号：US20140220451A1

公开(公告)日：2014-08-07

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 ,  H01M10/04 ,  H01M10/052

CPC classification number: H01M10/0565 ,  H01M4/505 ,  H01M4/5825 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/058 ,  H01M2300/0085 ,  Y02T10/7011 ,  Y10T29/49115

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.

Abstract translation: 提供一种锂二次电池，其包括阴极，阳极，隔膜和凝胶聚合物电解质，其中凝胶聚合物电解质包括丙烯酸酯基聚合物，并且电池的充电电压在4.3V至5.0V的范围内 ，以及锂二次电池的制备方法。 本发明的高电压锂二次电池在4.3V以上的高电压下具有优良的容量特性。

公开(公告)号：US11876177B2

公开(公告)日：2024-01-16

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

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

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.

公开(公告)号：US11682794B2

公开(公告)日：2023-06-20

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

CPC classification number: H01M10/0567 ,  C07F9/091 ,  C07F9/14 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0037

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：US11476500B2

公开(公告)日：2022-10-18

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

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：US20210399345A1

公开(公告)日：2021-12-23

申请号：US17462912

申请日：2021-08-31

Applicant: LG Chem, Ltd.

Inventor： Sung Hoon Yu ,  Yoo Sun Kang

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

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.