公开(公告)号：US20220278355A1

公开(公告)日：2022-09-01

申请号：US17625996

申请日：2020-07-29

Applicant: RHODIA OPERATIONS

Inventor： Réka TOTH ,  Laure BERTRY ,  Valérie BUISSETTE ,  Thierry LE MERCIER ,  Marc-David BRAIDA ,  Robin AMISSE

IPC: H01M10/056 ,  C01G25/00 ,  C01G33/00 ,  C01G49/00 ,  H01M10/0525

Abstract: The present invention relates to a method of preparation of a garnet-type inorganic material. It also relates to the garnet-type inorganic material itself. The process comprises the following steps: (1) bringing an aqueous solution S comprising (i) a salt of zirconium, (ii) a salt of lanthanum and (iii) a salt of the element A or a precursor of an oxide of element A into contact with an aqueous solution of a basic compound, as a result of which a precipitate suspended in the reaction medium is obtained; (2) stirring the reaction medium obtained at the end of step (1) for at least 30 min; (3) bringing the precipitate obtained at the end of step (2) into contact with an additive selected in the group consisting of: anionic surfactants; nonionic surfactants; polyethylene glycols; carboxylic acids and their salts; and surfactants of the carboxymethylated fatty alcohol ethoxylate type; (4) calcining in air the precipitate recovered at the end of the previous step at a temperature which is at least 400° C.; (5) bringing into contact the product obtained at the end of step (4) with a salt of lithium; (6) calcining in air the product obtained at the end of step (5) at a temperature between 700° C. and 1100° C.; 20 the inorganic compound M comprising or consisting essentially of a garnet oxide or garnet-type oxide containing, as constituent elements, the elements Li, La, Zr and at least one element A selected in the group consisting of Al, Ga, Nb, Fe, W, Ta, or a mixture thereof.

公开(公告)号：US20210070630A1

公开(公告)日：2021-03-11

申请号：US17049658

申请日：2019-04-25

Applicant: RHODIA OPERATIONS ,  LE CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  COLLEGE DE FRANCE

Inventor： Jean-Marie TARASCON ,  Jiwei MA ,  Laure BERTRY ,  Robin AMISSE ,  Marc-David BRAIDA ,  Thierry LE MERCIER ,  Valérie BUISSETTE

IPC: C01G45/12 ,  C01G51/00 ,  C01G53/00 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0525

Abstract: The present invention relates to the new process of preparation of a Li-rich layered oxide based on Mn and optionally on Ni and/or Co in which F is incorporated within the crystal of the oxide (or “fluorinated oxide”). It also relates to the new fluorinated oxide its use as a component in a cathode of a battery.

公开(公告)号：US20210024755A1

公开(公告)日：2021-01-28

申请号：US17043741

申请日：2019-04-11

Applicant: RHODIA OPERATIONS

Inventor： Cédric FERAL-MARTIN ,  Laure BERTRY ,  Emmanuelle ALLAIN NAJMAN

IPC: C09C1/30 ,  C01B33/193 ,  C04B14/06 ,  C04B20/02 ,  C08K3/36 ,  C08K9/04 ,  D21H17/68 ,  D21H27/00

Abstract: A precipitated silica suitable for thermal insulation applications and a process for its manufacture.

公开(公告)号：US20220306480A1

公开(公告)日：2022-09-29

申请号：US17618904

申请日：2020-06-23

Applicant: RHODIA OPERATIONS

Inventor： Pascaline GARBEY ,  Frédéric COLBEAU-JUSTIN ,  Laure BERTRY

IPC: C01B33/193

Abstract: A chemically modified precipitated silica characterised by the presence of methyl moieties chemically bound to the silica and a process for its manufacture.

公开(公告)号：US20210305549A1

公开(公告)日：2021-09-30

申请号：US17263819

申请日：2019-07-30

Applicant: RHODIA OPERATIONS

Inventor： Laure BERTRY ,  Robin AMISSE ,  Valérie BUISSETTE ,  Marc-David BRAIDA ,  Stéphanie LESTURGEZ ,  Thierry LE MERCIER

IPC: H01M4/36 ,  C01B25/455 ,  H01M4/58 ,  H01M4/587 ,  H01M4/62 ,  H01M10/054

Abstract: The invention relates to an NVPF-based composition and the use thereof in the field of batteries as an electrochemically active material. The invention also relates to a conductive composition comprising said composition as well as to a method for obtaining said composition.