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：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.