公开(公告)号：US20240413396A1

公开(公告)日：2024-12-12

申请号：US18488835

申请日：2023-10-17

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Seunghyeon SON ,  Tae Hyon BAE ,  Sanghyung KIM ,  Yunhee KIM ,  Arum YU ,  Harim LEE

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

Abstract: An electrolyte for a rechargeable lithium battery includes a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive includes a composition including a first compound and a second compound, the first compound is an imide cesium salt compound represented by Chemical Formula 1, and the second compound is a crown ether compound represented by Chemical Formula 2. Details of Chemical Formulae 1 and 2 are as described in the specification.

公开(公告)号：US20240322236A1

公开(公告)日：2024-09-26

申请号：US18487986

申请日：2023-10-16

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Tae Hyon BAE ,  Harim LEE ,  Sanghyung KIM ,  Seunghyeon SON ,  Arum YU ,  Yunhee KIM

IPC: H01M10/0567 ,  C07C49/167 ,  C07C311/48

CPC classification number: H01M10/0567 ,  C07C49/167 ,  C07C311/48 ,  H01M2300/0025

Abstract: An electrolyte for a rechargeable lithium battery, and a rechargeable lithium battery including the same. The electrolyte includes a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive includes a first compound selected from among a perfluorinated imide salt, CsPF6, and a combination thereof, and an Ag salt.

公开(公告)号：US20240213549A1

公开(公告)日：2024-06-27

申请号：US18463186

申请日：2023-09-07

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Sanghyung KIM ,  Tae Hyon BAE ,  Harim LEE ,  Seunghyeon SON ,  Yunhee KIM ,  Arum YU

IPC: H01M10/42 ,  H01M4/36 ,  H01M4/38 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569

CPC classification number: H01M10/4235 ,  H01M4/364 ,  H01M4/366 ,  H01M4/386 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M2004/028

Abstract: A rechargeable lithium battery includes a positive electrode including a positive electrode active material including lithium cobalt-based oxide, a negative electrode including a carbon-based negative electrode active material and a silicon-based negative electrode active material, a separator between the positive electrode and the negative electrode, and an electrolyte solution. The silicon-based negative electrode active material is included in an amount of about 0.1 wt % to about 10 wt % based on the total amount of the carbon-based negative electrode active material and the silicon-based negative electrode active material. The electrolyte solution includes a non-aqueous organic solvent, a lithium salt, and an additive, and the additive includes a first compound that is a compound represented by Chemical Formula 1, CsPF6, or a combination thereof, where R1 and R2 are each independently a fluoro group or a C1 to C4 fluoroalkyl group substituted with at least one fluoro group.

公开(公告)号：US20240120542A1

公开(公告)日：2024-04-11

申请号：US18304217

申请日：2023-04-20

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Tae Hyon BAE ,  Harim LEE ,  Sanghyung KIM ,  Seunghyeon SON ,  Arum YU ,  Yunhee KIM

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M10/0568 ,  H01M50/46

CPC classification number: H01M10/0567 ,  H01M10/0525 ,  H01M10/0568 ,  H01M50/46 ,  H01M2300/0025

Abstract: An electrolyte for a rechargeable lithium battery, and rechargeable lithium battery including the same are disclosed. The electrolyte includes a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive includes a fluorinated ketone and an Ag salt.