IP Library › Granted Patent US 12,288,843
Granted Patent B2
US 12,288,843 · App. 17/630,541 · Granted Apr 29, 2025

Method for the preparation of a Li-P-S product and corresponding products

Inventors: Marc-David Braida (Bry-sur-Marne, FR); Ömer Ulas Kudu (Amiens, FR); Christian Masquelier (Boves, FR); Thierry Le Mercier (Rosny-sous-Bois, FR); Benoit Fleutot (Boucherville, CA)
Assignees: SPECIALTY OPERATIONS FRANCE; LE CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE; UNIVERSITE DE PICARDIE JULES VERNE
H01M10/0562C01B25/14H01B1/10C01P2002/72C01P2002/77C01P2002/82C01P2006/40H01M2300/0068
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Quick Facts
Patent No.
US 12,288,843
App. No.
17/630,541
Granted
Apr 29, 2025
Kind
B2
Abstract

The present invention concerns a new method for the preparation of a Li—P—S product, as well as the products obtainable by said methods, and uses thereof especially as solid electrolytes.

Claims (9)

1. A method of preparing a Li—P—S product, the method comprising at least the following steps:

(a) mixing at least Li 4 P 2 S 6 , Li 2 S and sulfur to obtain a first mixture;

(b) heating the first mixture in an inert atmosphere, under vacuum or under H 2 S flow, for a period of time and at a temperature sufficient to produce the Li—P—S product; and

(c) cooling and optionally powdering the Li—P—S product.

2. The method according to claim 1 , wherein the Li—P—S product is selected from the group consisting of: Li 7 P 3 S 11 , Li 3 PS 4 , Li 9 PS 6 , and Li 9.6 P 3 S 12 .

3. The method according to claim 1 , wherein the temperature in step (b) is comprised from 150° C. to 600° C.

4. The method according to claim 1 , wherein the heating in step (b) is made over a time period of from 1 hour to 200 hours.

5. The method according to claim 1 , wherein Li 4 P 2 S 6 is obtained from the reaction between Li 2 S and P 2 S 5 .

6. The Li—P—S product obtainable by the method of claim 1 .

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 26, 2024
From: RHODIA OPERATIONS
To: SPECIALTY OPERATIONS FRANCE
Reel/Frame 066374/0642 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 27, 2022
From: BRAIDA, MARC-DAVID; KUDU, ÖMER; MASQUELIER, CHRISTIAN; LE MERCIER, THIERRY; FLEUTOT, BENOIT
To: RHODIA OPERATIONS; LE CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE; UNIVERSITE DE PICARDIE JULES VERNE
Reel/Frame 058788/0582 →
Priority Claims (1)
EP 19306075 · Sep 6, 2019 · regional
Continuity (1)
Related Publication 20220263123A1 · Aug 18, 2022
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