公开(公告)号：US20250002342A1

公开(公告)日：2025-01-02

申请号：US18576678

申请日：2022-07-05

Applicant: SPECIALTY OPERATIONS FRANCE

Inventor： Sébastien Jus ,  Lauriane D'Alencon ,  Thierry Le Mercier

IPC: C01B17/22 ,  C01B25/14 ,  C01D15/02 ,  H01M10/0562

Abstract: The present disclosure relates to a process of obtaining a powder of lithium sulfide (Li2S powder) having a d50-value of less than 10 μm, a specific surface area of more than 5 m2/g, a total pore volume of more than 0.035 cm3/g and a percentage of total pore volume constituted of pore with diameter below 20 nm of more than 20%, comprising the steps of: a) providing a powder of lithium hydroxide having a d50-value of less than 10 μm and presenting a residual water content below 5 wt. % (LiOH powder A), and b) reacting such LiOH powder A with a sulfide reactant, in order to obtain the Li2S powder. The present disclosure also relates to the powder of lithium sulfide obtained from such process and the use of such Li2S powder to prepare a solid compound of formula (I): LiaPSbXc wherein —X represents at least one halogen element; —a represents a number from 3.0 to 6.0; —b represents a number from 3.5 to 5.0; and —c represents a number from 0 to 3.0.

公开(公告)号：US20240413387A1

公开(公告)日：2024-12-12

申请号：US18701469

申请日：2022-10-11

Applicant: SPECIALTY OPERATIONS FRANCE

Inventor： Lauriane D'Alencon ,  Jules Valente ,  Thierry Le Mercier

IPC: H01M10/0562 ,  C01B25/14 ,  H01M10/0525 ,  H01M50/446

Abstract: The present disclosure relates to a powder of solid material particles of formula (I): LiaPSbXc wherein—X represents at least one halogen element; —a represents a number from 2.0 to 7.0; —b represents a number from 3.0 to 6.0; and —c represents a number from 0 to 3.0, wherein the powder has a d50-value of less than 50 μm, characterised in that its L* value in the L*a*b* color system is less than 60.0. The present disclosure also relates to a process for preparing such powder, as well as to the use of such powder for notably manufacturing solid electrolytes or battery articles.

公开(公告)号：US20240343579A1

公开(公告)日：2024-10-17

申请号：US18293744

申请日：2022-08-01

Applicant: SPECIALTY OPERATIONS FRANCE

Inventor： Lauriane D'Alencon ,  Diego Lopez Gonzalez ,  Jules Valente ,  Thierry Le Mercier

IPC: C01B25/14 ,  H01M10/0562

CPC classification number: C01B25/14 ,  H01M10/0562 ,  C01P2002/82 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2006/40 ,  H01M2300/008

Abstract: The present disclosure relates to The present disclosure relates to a powder of solid material particles comprising at least Li, P and S elements, characterized in that the thiol to carbonate surface groups ratio of the particle surface is less than 2, as measured by diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) on a Bruker FTIR (MIR) Vertex 70 spectrometer. The present disclosure also relates to a process for preparing such powder, as well as to the use of such powder for notably manufacturing solid electrolytes or battery articles.

公开(公告)号：US20250059038A1

公开(公告)日：2025-02-20

申请号：US18721109

申请日：2022-12-15

Applicant: SPECIALTY OPERATIONS FRANCE

Inventor： Laure Bertry ,  Lauriane D'Alencon ,  Marc-David Braida

IPC: C01B17/22 ,  H01M10/0525 ,  H01M10/0562 ,  H01M50/409

Abstract: The present invention concerns a new process for the preparation of a solid sulfide material of formula (I): MaLibPcSdXe (I), wherein:—X represents at least one halogen clement:—a, b, c, d and e are real numbers;—a represents a number such as 0≤a