公开(公告)号：US20190252724A1

公开(公告)日：2019-08-15

申请号：US16335240

申请日：2017-09-11

Applicant: Samsung SDI Co., Ltd.

Inventor： Pavel SHATUNOV ,  Olga TSAY ,  Aeran KIM ,  Woo Cheol SHIN ,  Hyunbong CHOI

IPC: H01M10/0567 ,  H01M4/525 ,  H01M10/0525

CPC classification number: H01M10/0567 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/028

Abstract: The present invention relates to an electrolyte for a lithium secondary battery, and a lithium secondary battery comprising the electrolyte, the electrolyte comprising a non-aqueous organic solvent; lithium salt; and an additive comprising a compound which contains a difluorophosphite (—OPF2) group which is expressed by a particular chemical formula.

公开(公告)号：US20190267673A1

公开(公告)日：2019-08-29

申请号：US16307765

申请日：2017-06-30

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Hyejin PARK ,  Inhaeng CHO ,  Sanghoon KIM ,  Woo Cheol SHIN

IPC: H01M10/0569 ,  H01M10/0567 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525

Abstract: The present disclosure relates to a lithium secondary battery electrolyte and a lithium secondary battery comprising the lithium secondary battery electrolyte, which comprises: a non-aqueous organic solvent including a branched ester-based solvent represented by formula 1; and a lithium salt.

公开(公告)号：US20170222269A1

公开(公告)日：2017-08-03

申请号：US15409716

申请日：2017-01-19

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Hyun Bong CHOI ,  Ae Ran KIM ,  Mi Young SON ,  Woo Cheol SHIN ,  Myung Heui WOO ,  Seung Tae LEE ,  Ha rim LEE

IPC: H01M10/0569 ,  H01M10/0563 ,  H01M10/0525

CPC classification number: H01M10/0569 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0563 ,  H01M10/0567 ,  H01M2220/20 ,  H01M2220/30 ,  H01M2300/002 ,  H01M2300/0025 ,  H01M2300/0034 ,  H01M2300/0037

Abstract: An electrolyte includes an organic solvent and a cyclic ester compound that is substituted with a sulfonate group.

公开(公告)号：US20200161703A1

公开(公告)日：2020-05-21

申请号：US16604241

申请日：2018-01-16

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Aeran KIM ,  Woo Cheol SHIN ,  Jeongmin SHIN ,  Hyunbong CHOI

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

Abstract: Provided are an electrolyte for a lithium secondary battery and a lithium secondary battery including the same wherein the electrolyte includes a non-aqueous organic solvent; a lithium salt; and an additive represented by Chemical Formula 1.

公开(公告)号：US20200153045A1

公开(公告)日：2020-05-14

申请号：US16629297

申请日：2018-04-05

Applicant: Samsung SDI Co., Ltd.

Inventor： Hyunbong CHOI ,  Pavel SHATUNOV ,  Olga TSAY ,  Aeran KIM ,  Woo Cheol SHIN ,  Jeongmin SHIN

IPC: H01M10/0567 ,  H01M10/0525 ,  C07F9/06

Abstract: Disclosed are an electrolyte for a lithium secondary battery and a lithium secondary battery comprising the same. The electrolyte for a lithium secondary battery, according to an embodiment, can comprise: a nonaqueous organic solvent; a lithium salt; a first additive comprising a compound represented by a specific chemical formula; and a second additive including at least one of lithium difluorophosphate (LiPO2F2), a cyclic carbonate including a fluorine atom, and a dinitrile compound.

公开(公告)号：US20170222262A1

公开(公告)日：2017-08-03

申请号：US15416614

申请日：2017-01-26

Applicant: SAMSUNG SDI CO., LTD. ,  IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)

Inventor： Duck Hyun KIM ,  Hee Eun YOO ,  Tae Ri KWON ,  Tae Hyun BAE ,  Si Young CHA ,  Min Ju LEE ,  IL Kyoung KWON ,  Woo Cheol SHIN ,  Dong Won KIM ,  Yun Chae JUNG

IPC: H01M10/0565 ,  H01M10/0525

CPC classification number: H01M10/0565 ,  H01M2/166 ,  H01M10/052 ,  H01M10/0525 ,  H01M2220/20 ,  H01M2300/0082 ,  H01M2300/0085 ,  H01M2300/0091 ,  Y02T10/7011

Abstract: A polymer electrolyte for a lithium secondary battery includes a polymer represented by Formula 1 below, wherein a and b are each independently an integer from 1 to 5, and n is an integer from 1 to 1,000. A lithium secondary battery includes the polymer electrolyte.