Abstract: The invention concerns a method for obtaining data related to data packets exchanged during at least one communication in a network (R) comprising a plurality of sub-networks (R1, R2, R3, R4, R5). The method is suitable for generating a request comprising a piece of time information and a terminal identifier and for obtaining a response comprising at least one dated dataset related to at least one data packet, said at least one set being selected by a second entity (S2) of at least one second sub-network (R2), from a plurality of datasets related to data packets received by at least one entity of said at least one second sub-network (R2), depending on the time information and the terminal identifier. The invention also relates to an entity (S1I) of a sub-network (R1) implementing the obtaining method.

Abstract: An electrode assembly for a rechargeable Li-ion battery, comprising a current collector provided with an electrode composition comprising carboxymethyl cellulose (CMC) binder material and silicon powder provided with a layer of SiO2 or silicon suboxides SiOx, with 0<x?2, such that the oxygen content of said silicon is between 3 and 18% by weight.

Abstract: The invention concerns a method for obtaining data related to data packets exchanged during at least one communication in a network (R) comprising a plurality of sub-networks (R1, R2, R3, R4, R5). The method is suitable for generating a request comprising a piece of time information and a terminal identifier and for obtaining a response comprising at least one dated dataset related to at least one data packet, said at least one set being selected by a second entity (S2) of at least one second sub-network (R2), from a plurality of datasets related to data packets received by at least one entity of said at least one second sub-network (R2), depending on the time information and the terminal identifier. The invention also relates to an entity (S1I) of a sub-network (R1) implementing the obtaining method.

Abstract: A fluoro material is provided for use as an electrode active material as well as a process tar producing it. The material includes particles of a fluorosulfate which corresponds to formula (I) L1-yFe1-xMnxSO4F (I) in which 0<x?1 and 0?y<1. The material includes a phase of triplite structure and optionally a phase of tavorite structure, the phase of triplite structure representing at least 50% by volume. The material may be obtained from precursors of the elements of which it is constituted, via a ceramic route, via an ionothermal route or via a polymer route.

Abstract: The invention relates to a method for preparing an alkali metal and transition metal fluorosulfate that is useful as an electrode material in an electrochemical battery that operates by alkali ion exchange. The method includes a first step that involves: preparing a mixture of precursors of elements making up fluorosulfate, placing said mixture in contact with a solid polymer at ambient temperature, subjecting the reaction medium to a heat treatment that aims to melt the polymer, and subsequently reacting the precursors with one another. Said polymer is one that is solid at ambient temperature, has a melting point lower than the reaction temperature of the precursors, is stable at least up to the reaction temperature of the precursors, and is soluble in a nonpolar aprotic organic solvent.

Abstract: The invention relates to an electrode material. Said material is characterized in that it contains, as positive electrode active material, at least one sulphate of iron in the +II oxidation state and of alkali metal corresponding to the formula (Na1?aLib)xFey(SO4), (I) in which the subscripts a, b, x, y and z are chosen so as to ensure the electroneutrality of the compound, with 0?a?1, 0?b?1, 1?x?3, 1?y?2, 1?z?3, and 2?(2z?x)/y<3 so that at least one portion of the iron is in the +II oxidation state, with the exclusion of the compound Li2Fe2(SO4)3. It is of use in particular as a positive electrode material in an alkali metal ion battery.

Abstract: A fluoro material is provided for use as an electrode active material as well as a process for producing it. The material includes particles of a fluorosulfate which corresponds to formula (I) Li1-yFe1-xMnxSO4F (I) in which 0<x?1 and 0?y<1. The material includes a phase of triplite structure and optionally a phase of tavorite structure, the phase of triplite structure representing at least 50% by volume. The material may be obtained from precursors of the elements of which it is constituted, via a ceramic route, via an ionothermal route or via a polymer route.

Abstract: The invention relates to a method for preparing an alkali metal and transition metal fluorosulfate that is useful as an electrode material in an electrochemical battery that operates by alkali ion exchange. The method includes a first step that involves: preparing a mixture of precursors of elements making up fluorosulfate, placing said mixture in contact with a solid polymer at ambient temperature, subjecting the reaction medium to a heat treatment that aims to melt the polymer, and subsequently reacting the precursors with one another. Said polymer is one that is solid at ambient temperature, has a melting point lower than the reaction temperature of the precursors, is stable at least up to the reaction temperature of the precursors, and is soluble in a nonpolar aprotic organic solvent.

Abstract: An electrode assembly for a rechargeable Li-ion battery, comprising a current collector provided with an electrode composition comprising carboxymethyl cellulose (CMC) binder material and silicon powder provided with a layer of SiO2 or silicon suboxides SiOx, with 0<x?2, such that the oxygen content of said silicon is between 3 and 18% by weight.