公开(公告)号：US10673045B2

公开(公告)日：2020-06-02

申请号：US15851068

申请日：2017-12-21

Applicant: LG Chem, Ltd. ,  TORAY INDUSTRIES, INC.

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

IPC: H01M2/16 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/131

Abstract: The present disclosure refers to a secondary battery which comprises a high-voltage cathode active material and a separator whose pores are not obstructed even though being used together with the high-voltage cathode active material, thereby preventing the obstruction of pores in the separator and the formation of a dendrite in the anode and eventually providing good battery life performance.

公开(公告)号：US20180123107A1

公开(公告)日：2018-05-03

申请号：US15851068

申请日：2017-12-21

Applicant: LG Chem, Ltd. ,  TORAY INDUSTRIES, INC.

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

IPC: H01M2/16 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/505 ,  H01M4/131

Abstract: The present disclosure refers to a secondary battery which comprises a high-voltage cathode active material and a separator whose pores are not obstructed even though being used together with the high-voltage cathode active material, thereby preventing the obstruction of pores in the separator and the formation of a dendrite in the anode and eventually providing good battery life performance.

公开(公告)号：US09831523B2

公开(公告)日：2017-11-28

申请号：US13875772

申请日：2013-05-02

Applicant: LG Chem, Ltd.

Inventor： Sung-Hoon Yu ,  Doo-Kyung Yang ,  Min-Jung Jou ,  Yoo-Seok Kim ,  Yoo-Sun Kang

IPC: H01M10/056 ,  H01M10/0566 ,  H01M10/0567 ,  H01M10/0569 ,  H01M10/052

CPC classification number: H01M10/056 ,  H01M10/052 ,  H01M10/0566 ,  H01M10/0567 ,  H01M10/0569 ,  H01M2300/0037

Abstract: The present invention provides non-aqueous electrolyte solution for a lithium secondary battery, comprising fluoroethylene carbonate and a pyrimidine-based compound; and a lithium secondary battery using the same.

公开(公告)号：US20160322668A1

公开(公告)日：2016-11-03

申请号：US15109299

申请日：2015-09-30

Applicant: LG CHEM, LTD.

Inventor： Sung-Hoon Yu ,  Doo-Kyung Yang ,  Min-Hyung Lee ,  Jong-Ho Jeon

IPC: H01M10/0569 ,  H01M4/131 ,  H01M4/525 ,  H01M4/50 ,  H01M4/52 ,  H01M10/0525 ,  H01M4/505

CPC classification number: H01M10/0569 ,  H01M4/131 ,  H01M4/502 ,  H01M4/505 ,  H01M4/523 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0567 ,  H01M2220/20 ,  H01M2220/30 ,  H01M2300/004 ,  Y02T10/7011

Abstract: Disclosed is a lithium secondary battery including a positive electrode, a negative electrode, a separator and a nonaqueous electrolyte, wherein the positive electrode includes LiaNixMnyCozO2 (a+x+y+z=2, 0.9≦a≦1.1, 0≦x, 0≦y, 0≦z) as a positive electrode active material, and wherein the nonaqueous electrolyte includes (i) fluorinated cyclic carbonate expressed by Chemical Formula 1 below, (ii) propionate-based ester expressed by Chemical Formula 2 below, and (iii) non-halogenated carbonate, so that a mixture weight ratio (i:ii) thereof is 20:80 to 50:50: wherein, in Chemical Formula 1, R1, R2, R3 and R4 are independently any one of F, H and methyl group, and at least one thereof is F, wherein, in Chemical Formula 2, R5 is alkyl group having 1 to 5 carbons.

公开(公告)号：US20160028066A1

公开(公告)日：2016-01-28

申请号：US14646598

申请日：2014-10-02

Applicant: LG Chem, Ltd.

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

IPC: H01M2/16 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/131 ,  H01M4/505

CPC classification number: H01M2/1686 ,  H01M2/162 ,  H01M2/166 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525

Abstract: The present disclosure refers to a secondary battery which comprises a high-voltage cathode active material and a separator whose pores are not obstructed even though being used together with the high-voltage cathode active material, thereby preventing the obstruction of pores in the separator and the formation of a dendrite in the anode and eventually providing good battery life performance.

Abstract translation: 本发明涉及一种二次电池，其包括高电压正极活性物质和分隔体，即使与高电压正极活性物质一起使用也不妨碍气孔，从而防止隔膜中的孔堵塞， 在阳极中形成枝晶并最终提供良好的电池寿命性能。

公开(公告)号：US09887407B2

公开(公告)日：2018-02-06

申请号：US14646598

申请日：2014-10-02

Applicant: LG Chem, Ltd. ,  TORAY INDUSTRIES, INC.

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

IPC: H01M2/16 ,  H01M10/0525 ,  H01M4/505 ,  H01M4/525 ,  H01M4/131

CPC classification number: H01M2/1686 ,  H01M2/162 ,  H01M2/166 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525

Abstract: The present disclosure refers to a secondary battery which comprises a high-voltage cathode active material and a separator whose pores are not obstructed even though being used together with the high-voltage cathode active material, thereby preventing the obstruction of pores in the separator and the formation of a dendrite in the anode and eventually providing good battery life performance.

公开(公告)号：US09362592B2

公开(公告)日：2016-06-07

申请号：US14546267

申请日：2014-11-18

Applicant: LG CHEM, LTD.

Inventor： Sung-Hoon Yu ,  Ho-Chun Lee

IPC: H01M10/0565 ,  H01M2/16 ,  H01M4/04 ,  H01M4/13 ,  H01M4/133 ,  H01M4/139 ,  H01M10/052 ,  H01M4/131 ,  H01M4/62 ,  H01M10/04 ,  H01M10/054

CPC classification number: H01M10/0565 ,  H01M2/162 ,  H01M2/1653 ,  H01M2/1686 ,  H01M4/0404 ,  H01M4/043 ,  H01M4/13 ,  H01M4/131 ,  H01M4/133 ,  H01M4/139 ,  H01M4/623 ,  H01M10/0431 ,  H01M10/049 ,  H01M10/052 ,  H01M10/054 ,  H01M2220/30 ,  H01M2300/0085 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011 ,  Y10T29/49108 ,  Y10T29/4911 ,  Y10T29/49115

Abstract: Provided are a method of preparing a gel polymer electrolyte secondary battery, and a gel polymer electrolyte secondary battery prepared by the method. The gel polymer electrolyte secondary battery includes a cathode, an anode, a separator and a gel polymer electrolyte in a battery case. The method includes (S1) coating a polymerization initiator on a surface of at least one selected from a group consisting of a cathode, an anode, a separator of a non-woven fabric, and a battery case, the surface needed to be contacted with a gel polymer electrolyte; (S2) putting an electrode assembly including the cathode, the anode, the separator of a non-woven fabric into the battery case; and (S3) forming a gel polymer electrolyte by introducing a gel polymer electrolyte composition including an electrolyte solvent, an electrolyte salt and a polymer electrolyte monomer into the battery case, and polymerizing the monomer.

Abstract translation: 提供一种制备凝胶聚合物电解质二次电池的方法和通过该方法制备的凝胶聚合物电解质二次电池。 凝胶聚合物电解质二次电池在电池壳体中包括阴极，阳极，隔膜和凝胶聚合物电解质。 该方法包括（S1）在选自阴极，阳极，无纺织物的隔膜和电池壳体中的至少一种的表面上涂布聚合引发剂，需要与 凝胶聚合物电解质; （S2）将包括阴极，阳极，无纺织物的隔膜的电极组件放入电池壳体中; 和（S3）通过将包含电解质溶剂，电解质盐和聚合物电解质单体的凝胶聚合物电解质组合物引入电池壳体中形成凝胶聚合物电解质，并使单体聚合。

公开(公告)号：US10153518B2

公开(公告)日：2018-12-11

申请号：US15109299

申请日：2015-09-30

Applicant: LG Chem, Ltd.

Inventor： Sung-Hoon Yu ,  Doo-Kyung Yang ,  Min-Hyung Lee ,  Jong-Ho Jeon

IPC: H01M10/0569 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0567 ,  H01M4/131 ,  H01M4/50 ,  H01M4/52 ,  H01M10/0525

Abstract: Disclosed is a lithium secondary battery including a positive electrode, a negative electrode, a separator and a nonaqueous electrolyte, wherein the positive electrode includes LiaNixMnyCozO2 (a+x+y+z=2, 0.9≤a≤1.1, 0≤x, 0≤y, 0≤z) as a positive electrode active material, and wherein the nonaqueous electrolyte includes (i) fluorinated cyclic carbonate expressed by Chemical Formula 1 below, (ii) propionate-based ester expressed by Chemical Formula 2 below, and (iii) non-halogenated carbonate, so that a mixture weight ratio (i:ii) thereof is 20:80 to 50:50: wherein, in Chemical Formula 1, R1, R2, R3 and R4 are independently any one of F, H and methyl group, and at least one thereof is F, wherein, in Chemical Formula 2, R5 is alkyl group having 1 to 5 carbons.

公开(公告)号：US09871271B2

公开(公告)日：2018-01-16

申请号：US13887655

申请日：2013-05-06

Applicant: LG Chem, Ltd.

Inventor： Sung-Hoon Yu ,  Doo Kyung Yang ,  Min-Jung Jou ,  Yoo-Seok Kim ,  Yoo-Sun Kang

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

CPC classification number: H01M10/0569 ,  H01M10/052 ,  H01M10/0567 ,  H01M2300/0034 ,  H01M2300/0037 ,  H01M2300/004 ,  H01M2300/0042

Abstract: The present invention provides non-aqueous electrolyte solution for a lithium secondary battery, comprising a pyrimidine-based compound, a non-fluorinated solvent and a fluorinated solvent; and a lithium secondary battery using the same.

公开(公告)号：US09455470B2

公开(公告)日：2016-09-27

申请号：US13866057

申请日：2013-04-19

Applicant: LG CHEM, LTD.

Inventor： Sung-Hoon Yu ,  Doo-Kyung Yang ,  Min-Hyung Lee ,  Min-Jung Jou

IPC: H01M10/056 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/0569 ,  H01M4/505 ,  H01M4/52 ,  H01M4/58

CPC classification number: H01M10/056 ,  H01M4/505 ,  H01M4/523 ,  H01M4/5825 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/0569 ,  H01M2300/0028 ,  Y02E60/122

Abstract: The present invention provides a non-aqueous electrolyte solution for a lithium secondary battery, comprising an ester-based compound having a branched-chain alkyl group; and a lithium secondary battery using the same.

Abstract translation: 本发明提供一种锂二次电池用非水电解液，其包含具有支链烷基的酯系化合物， 和使用该二次电池的锂二次电池。