公开(公告)号：US20210359342A1

公开(公告)日：2021-11-18

申请号：US17272581

申请日：2019-09-20

申请人： LG CHEM, LTD.

发明人： Sol Ji PARK ,  Kyoung Ho AHN ,  Jun Hyeok HAN ,  Chul Haeng LEE

IPC分类号： H01M10/0565 ,  H01M10/0525 ,  H01M4/134 ,  C08G77/442

摘要： The present invention relates to a composition for a gel polymer electrolyte and a lithium secondary battery including a gel polymer electrolyte formed therefrom, and particularly, to a composition for a gel polymer electrolyte, which includes a lithium salt, a non-aqueous organic solvent including a glyme-based solvent, an oligomer represented by Formula 1 and having a polymerizable substituent, and a polymerization initiator, and a lithium secondary battery including a gel polymer electrolyte prepared by polymerization of the composition.

公开(公告)号：US20210218058A1

公开(公告)日：2021-07-15

申请号：US17056662

申请日：2019-09-10

申请人： LG CHEM, LTD.

发明人： Kyoung Ho AHN ,  Jung Hoon LEE ,  Won Kyung SHIN ,  Jae Won LEE ,  Sol Ji PARK ,  Chul Haeng LEE

IPC分类号： H01M10/0565

摘要： The present invention relates to a thermosetting electrolyte composition for a lithium secondary battery, a gel polymer electrolyte prepared therefrom, and a lithium secondary battery including the gel polymer electrolyte, and particularly, to a thermosetting electrolyte composition for a lithium secondary battery, which includes LiPF6 as a first lithium salt, a second lithium salt excluding the LiPF6, a non-aqueous organic solvent, and a polymer or oligomer containing a unit represented by Formula 1, a gel polymer electrolyte prepared therefrom, and a lithium secondary battery including the gel polymer electrolyte.

公开(公告)号：US20190051937A1

公开(公告)日：2019-02-14

申请号：US15759704

申请日：2017-03-30

申请人： LG CHEM, LTD.

发明人： Kyoung Ho AHN ,  Jung Hoon LEE ,  Chul Haeng LEE ,  Jeong Woo OH ,  Yi Jin JUNG ,  Sol Ji PARK

IPC分类号： H01M10/0565 ,  H01M10/0525 ,  C08G61/02 ,  C08L33/12 ,  C08L33/20 ,  C08L33/14 ,  C08L75/04

摘要： The present invention relates to a composition for a gel polymer electrolyte and a gel polymer electrolyte prepared using the same, and specifically provides a composition for a gel polymer electrolyte including a lithium salt, an organic solvent, and a polymer A having an epoxy group represented by Formula 1, and a polymer B having an amine group and a cyanide group represented by Formula 2, wherein the polymers A and B are included in an amount of 1 to 20 wt % based on the total weight of the composition for a gel polymer electrolyte, and wherein a gel polymer electrolyte for a secondary battery can be prepared that includes a polymer network formed by combining the polymer A having an epoxy group represented by Formula 1 and the polymer B having an amine group and a cyanide group represented by Formula 2 in a three-dimensional structure.

公开(公告)号：US20170294682A1

公开(公告)日：2017-10-12

申请号：US15516106

申请日：2015-10-01

申请人： LG Chem, Ltd.

发明人： Kyoung Ho AHN ,  Sol Ji PARK ,  Chul Haeng LEE ,  Jeong Woo OH

IPC分类号： H01M10/0567 ,  C07C265/02 ,  C07C265/12 ,  H01M10/0525 ,  C07C265/10

CPC分类号： H01M10/0567 ,  C07C265/02 ,  C07C265/10 ,  C07C265/12 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0569

摘要： The present disclosure provides a non-aqueous liquid electrolyte comprising a non-aqueous organic solvent, a lithium salt, and an additive that is an isocyanate-based compound comprising a carbon-carbon triple bond.By comprising the isocyanate-based compound additive comprising a carbon-carbon triple bond of the present disclosure in the non-aqueous liquid electrolyte, lifespan properties and high temperature durability are capable of being enhanced, and internal resistance of a battery is capable of being reduced.

公开(公告)号：US20220037695A1

公开(公告)日：2022-02-03

申请号：US17281367

申请日：2019-10-04

申请人： LG CHEM, LTD.

发明人： Kyoung Ho AHN ,  Sol Ji PARK ,  Jun Hyeok HAN ,  Chul Haeng LEE ,  Jung Hoon LEE

IPC分类号： H01M10/0565 ,  C08F22/22 ,  H01M10/0568 ,  H01M10/0525

摘要： The present invention relates to a composition for a polymer electrolyte which includes a polymerizable oligomer capable of forming an excellent crosslink during a polymerization reaction. Also, the present invention relates to a polymer electrolyte, which may ensure high oxidation stability and ionic conductivity by using the composition for a polymer electrolyte, and a lithium secondary battery including the same.

公开(公告)号：US20210257660A1

公开(公告)日：2021-08-19

申请号：US17056317

申请日：2019-09-10

申请人： LG CHEM, LTD.

发明人： Kyoung Ho AHN ,  Jung Hoon LEE ,  Won Kyung SHIN ,  Jae Won LEE ,  Sol Ji PARK ,  Chul Haeng LEE

IPC分类号： H01M10/0565 ,  H01M10/0525 ,  H01M10/0569

摘要： The present invention relates to a thermosetting electrolyte composition for a lithium secondary battery, a gel polymer electrolyte prepared therefrom, and a lithium secondary battery including the gel polymer electrolyte, and particularly, to a thermosetting electrolyte composition for a lithium secondary battery, which includes LiPF6 as a first lithium salt, a second lithium salt excluding the LiPF6, a non-aqueous organic solvent, and a polymer or oligomer containing a unit represented by Formula 1, a gel polymer electrolyte prepared therefrom, and a lithium secondary battery including the gel polymer electrolyte.

公开(公告)号：US20210257659A1

公开(公告)日：2021-08-19

申请号：US16967636

申请日：2019-09-20

申请人： LG CHEM, LTD.

发明人： Sol Ji PARK ,  Kyoung Ho AHN ,  Chul Haeng LEE ,  Min Jung KIM ,  Jae Won LEE

IPC分类号： H01M10/0565 ,  H01M10/0525

摘要： The present invention relates to a composition for a gel polymer electrolyte and a lithium secondary battery including a gel polymer electrolyte formed therefrom, and particularly, to a composition for a gel polymer electrolyte, which includes a lithium salt, an organic solvent, an oligomer represented by Formula 1 and having a polymerizable substituent, a compound represented by Formula 2 and having a crosslinking reactive group, and a polymerization initiator, and a lithium secondary battery including a gel polymer electrolyte prepared by polymerization of the composition.