公开(公告)号：US10756389B2

公开(公告)日：2020-08-25

申请号：US15747496

申请日：2016-07-28

Applicant: SOLVAY SA

Inventor： Ji-hun Lee ,  Ji-Ae Choi ,  Hyung Kwon Hwang ,  Martin Bomkamp ,  Sergey N. Tverdomed ,  Mykhailo Shevchuk ,  Nataliya Kalinovich ,  Gerd-Volker Röschenthaler

IPC: H01M12/08 ,  H01M10/0567 ,  H01M10/0525 ,  H01M10/052 ,  H01G11/64 ,  H01G11/62 ,  H01G11/60 ,  C07D317/22 ,  C07D317/34

Abstract: The present invention concerns methods for the manufacture of ethylene carbonate substituted with a fluorinated alkoxy group, certain ethylene carbonates substituted with a fluorinated alkoxy group as well as their use as solvent or solvent additive for lithium ion batteries and supercapacitors.

公开(公告)号：US20240106000A1

公开(公告)日：2024-03-28

申请号：US18258169

申请日：2021-11-03

Applicant: Solvay SA

Inventor： Ji-Ae Choi ,  Vito Tortelli ,  Guillaume Müller ,  Lawrence Alan Hough ,  Marco Galimberti ,  So-Young Lee ,  Hee-Sung Choi

IPC: H01M10/0569 ,  H01M10/052

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

Abstract: The present invention relates to an electrolyte composition for lithium metal batteries, comprising a) at least one fluorinated di-ether containing from 4 to 10 carbon atoms, represented by Formula (I) of R1—O—R2—O—R3, wherein each R1 and R3 is independently a fluorinated alkyl group, and R2 is an optionally fluorinated alkyl group, represented by Formula (II) of CaFbHc, wherein a is an integer from 1 to 6, b+c is an integer from 2 to 10, and if b is 0, R1 and R3 independently have no H; b) at least one non-fluorinated ether; and c) at least one lithium salt, wherein a) the fluorinated di-ether is in an amount of at least 50% by volume (vol %), based on the total volume of a) the fluorinated di-ether and b) the non-fluorinated ether. The present invention also relates to a lithium metal battery comprising a negative electrode comprising lithium metal; a positive electrode; a separator; and an electrolyte composition according to the present invention.

公开(公告)号：US20240243364A1

公开(公告)日：2024-07-18

申请号：US18554350

申请日：2022-04-05

Applicant: Solvay SA

Inventor： Ji-Ae Choi ,  Eun-ji Moon ,  Jong-Hyun Lee ,  Ji-Hye Won ,  Hyung-Kwon Hwang

IPC: H01M10/0569 ,  H01M4/02 ,  H01M4/131 ,  H01M4/133 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/0568

CPC classification number: H01M10/0569 ,  H01M4/131 ,  H01M4/133 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/0568 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2300/0034

Abstract: The present invention pertains to a liquid electrolyte for lithium secondary batteries comprising: a) at least one fluorinated acyclic diether represented by the formula (I) R1—O—R2—O—R3, wherein R1 and R3 represent a fluorinated straight-chain alkyl group respectively: R2 represents an optionally fluorinated straight-chain alkylene group; and the sum of carbon atoms in R1, R2, and R3 is from 5 to 8, and preferably 6; b) at least one fluorinated acyclic carboxylic acid ester represented by the formula (II) R4—C(O)O—R5, wherein R4 and R5 represent an alkyl group respectively; the sum of carbon atoms of R4 and R5 is from 2 to 7; and at least one hydrogen in R5 is replaced by fluorine; c) at least one organic carbonate; and d) at least one lithium salt. The present invention also relates to a lithium secondary battery comprising an anode, a cathode, a separator and a liquid electrolyte according to the present invention.

公开(公告)号：US20230238567A1

公开(公告)日：2023-07-27

申请号：US17918740

申请日：2021-03-18

Applicant: Solvay SA

Inventor： Ji-Ae Choi ,  Guillaume Müller ,  Lawrence Alan Hough ,  Hyun-Cheol Lee ,  Hee-Sung Choi ,  So-Young Lee

IPC: H01M10/0525 ,  H01M4/04 ,  H01M10/0569 ,  H01M10/0567 ,  H01M10/0568 ,  C07F1/00

CPC classification number: H01M10/0525 ,  H01M4/0404 ,  H01M10/0569 ,  H01M10/0567 ,  H01M10/0568 ,  C07F1/005 ,  H01M2300/0034

Abstract: The present invention pertains to an anode-less lithium ion battery comprising a) a cathode comprising a cathode current collector and a cathode electro-active material on the cathode current collector; b) an anode current collector; c) a liquid electrolyte composition between the a) cathode and the b) anode current collector; and d) a separator, wherein the c) liquid electrolyte composition comprises i) at least 70% by volume (vol %) of a solvent mixture with respect to the total volume of the electrolyte composition, comprising at least one fluorinated ether compound and at least one non-fluorinated ether compound, and ii) at least one lithium salt.

公开(公告)号：US10176935B2

公开(公告)日：2019-01-08

申请号：US15536732

申请日：2015-12-17

Applicant: SOLVAY SA

Inventor： Hag-Soo Kim ,  Ji-hun Lee ,  Ji-Ae Choi ,  Moon-Hyung Choi ,  Eun-Ji Moon

IPC: H01G11/64 ,  H01G11/54 ,  H01G11/04 ,  H01M10/0567 ,  H01M10/0525 ,  H01M10/0569 ,  H01M4/131

Abstract: Disclosed are electrolyte compositions comprising aryl group containing certain fluorinated carbonate, and batteries, especially batteries having a high nominal voltage, comprising such electrolyte composition.