公开(公告)号：US20200243919A1

公开(公告)日：2020-07-30

申请号：US16756683

申请日：2019-05-10

Applicant: LG CHEM, LTD. ,  Korea Advanced Institute of Science and Technology

Inventor： Jong-Keon YOON ,  Kyung-Hwa WOO ,  Hyun-Jun CHOI ,  Hye-Jin LEE ,  Hoe-Jin HAH ,  Hee-Tak KIM ,  Young-Il ROH ,  Hyun-Soo JIN

IPC: H01M10/42 ,  H01M10/052 ,  H01M4/137 ,  H01M10/0565 ,  H01M2/16

Abstract: A lithium metal secondary battery including: an electrode assembly including a positive electrode, a lithium metal negative electrode, a separator interposed between the positive electrode and the lithium metal negative electrode, a protective layer interposed between the lithium metal negative electrode and the separator; and a non-aqueous electrolyte injected to the electrode assembly, wherein the protective layer includes a polymer having a sulfur chain group. A battery module including the lithium metal secondary battery is also disclosed.

公开(公告)号：US20210013514A1

公开(公告)日：2021-01-14

申请号：US16980701

申请日：2019-04-03

Applicant: LG CHEM, LTD.

Inventor： Jong-Keon YOON ,  Sol-Ji PARK ,  Hyun-Woong YUN ,  Kyoung-Ho AHN ,  Hoe-Jin HAH

IPC: H01M4/62 ,  H01M10/052 ,  H01M4/36 ,  H01M2/16 ,  H01M10/0565 ,  H01M10/0562 ,  C08G61/04 ,  C08K7/00 ,  C08K3/38

Abstract: A lithium metal secondary battery including a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and a protective layer interposed between the negative electrode and the separator. The protective layer includes an additive, wherein the additive comprises a mixture of hexagonal boron nitride (BN) flakes with an ionomer having a sulfur (S)-containing anionic group and fluorine (F).

公开(公告)号：US20200212447A1

公开(公告)日：2020-07-02

申请号：US16615046

申请日：2019-01-11

Applicant: LG CHEM, LTD.

Inventor： Kyung-Hwa WOO ,  Jong-Keon YOON ,  Jae-Hyun LEE ,  Hoe-Jin HAH

IPC: H01M4/62 ,  H01M10/052 ,  H01M4/36 ,  H01M10/44 ,  H01M10/058 ,  H01M4/04

Abstract: Disclosed is a method for manufacturing a lithium metal secondary battery including a lithium metal electrode as a negative electrode, wherein the lithium metal electrode has a protective layer formed thereon, and the lithium metal secondary battery is discharged before its initial charge during an activation step of the lithium metal secondary battery so that stripping occurs on the surface of the lithium metal electrode.