Solvay Specialty Polymers Italy S.p.a.

Solvay Sa

Solvay Solexis S.p.a.

Riccardo Pieri

Julio A Abusleme

Marco Apostolo

Christine Hamon

Milena Stanga

Liubov Chernysheva

Paolo Fossati

Giulio Brinati

Valeri Kapeliouchko

Bradley Lane Kent

Paula Cojocaru

Régis Faig

Anna Maria Bertasa

Hans Edouard Miltner

Anne-Lise Goffin

Marco Miele

Libero Damen

Ivan Pagin

Frederic Fouda Onana

Shilei Chen

Emma Barchiesi

Silvia Rita Petricci

Mathieu Fenoll

Marco Alberto Spreafico

The present invention provides a multilayer assembly comprising a metallic layer that is at least partially coated with a hybrid inorganic/organic composition, a method for its preparation and an electrochemical cell comprising said multilayer assembly.

Multilayer assembly

The present invention pertains to a secondary battery comprising at least one separator, said separator comprising at least one fluorinated polymer [polymer (F)], said polymer (F) comprising recurring units derived from vinylidene fluoride (VDF), hexafluoropropylene (HFP) and at least one (meth)acrylic monomer (MA) having formula (I) here below, wherein: &#x2014;R, Rand R, equal to or different from each other, are independently selected from a hydrogen atom and a C-Chydrocarbon group, and &#x2014;Ris a C-Chydrocarbon moiety comprising at least one hydroxyl group. 

Secondary batteries

The invention pertains to a process for manufacturing a polymer electrolyte separator based on a fluoropolymer hybrid organic/inorganic composite, said process comprising: (i) providing a mixture of: &#x2014;at least one fluoropolymer comprising recurring units derived from at least one (meth)acrylic monomer [monomer (MA)] of formula (I): wherein each of R1, R2, R3, equal or different from each other, is independently a hydrogen atom or a C-Chydrocarbon group, and Ris a C-Chydrocarbon moiety comprising at least one hydroxyl group [polymer (F)]; &#x2014;at least one metal compound [compound (M)] of formula: XAYwherein m is an integer from 1 to 4, A is a metal selected from the group consisting of Si, Ti and Zr, Y is a hydrolysable group, X is a hydrocarbon group, optionally comprising one or more functional groups; and &#x2014;at least one electrolyte (E); and &#x2014;at least one liquid plasticizer (S); (ii) reacting at least a fraction of hydroxyl groups of the ROH groups of said monomer (MA) of said polymer (F) with at least a fraction of said compound (M), so as to obtain a grafted polymer comprising pendant &#x2014;YAXgroups, with m, Y, A and X having same meaning as above detailed; (iii) hydrolyzing and/or polycondensing compound (M) and/or pendant &#x2014;YAXgroups, as above detailed to yield a liquid mixture comprising fluoropolymer hybrid organic/inorganic composite comprising inorganic domains and incorporating solvent (S) and electrolyte (E); and (iv) casting a film from the liquid mixture obtained in (iii); (v) drying the film obtained in (iv) for obtaining the polymer electrolyte separator. 

Method for manufacturing a polymer electrolyte separator and polymer electrolyte separator therefrom

The present invention relates to a process for the preparation of a composite material comprising a vinylidene difluoride (VDF)-containing copolymer and an electrically non-conductive polymeric material, to a composite material obtainable via said process, to its use in electrochemical cells and to an electrochemical cell comprising said composite.

Composite material

The present invention pertains to a process for manufacturing a solid composite separator, said process comprising the following steps: (i) providing a liquid composition [composition (L)] comprising, preferably consisting of:

Solid composite fluoropolymer separator

The invention pertains to an aqueous electrode-forming composition comprising:&#x2014;at least one fluoropolymer [polymer (F)];&#x2014;particles of at least one powdery active electrode material [particles (P)], said particles (P) comprising a core of an active electrode compound [compound (E)] and an outer layer of a metallic compound [compound (M)] different from Lithium, said outer layer at least partially surrounding said core; and&#x2014;water, to a process for its manufacture, to a process for manufacturing an electrode structure using the same, to an electrode structure made from the same and to an electrochemical device comprising said electrode structure.

Electrode-forming composition

The present invention pertains to a process for manufacturing a component of a secondary battery, said process comprising the following steps: (i) preparing a liquid composition comprising: &#x2014;a liquid medium selected from the group consisting of aliphatic ketones, cycloaliphatic ketones, cycloaliphatic esters and mixtures thereof, and &#x2014;at least one fluorinated polymer [polymer (F)] comprising recurring units derived from vinylidene fluoride (VDF), hexafluoropropylene (HFP) and at least one (meth)acrylic monomer (MA) having formula (I), wherein: &#x2014;R, Rand R, equal to or different from each other, are independently selected from a hydrogen atom and a C-Chydrocarbon group, and &#x2014;R, is a hydrogen atom or a C-Chydrocarbon moiety comprising at least one functional group selected from a hydroxyl, a carboxyl, an epoxide, an ester and an ether group; and (ii) processing said liquid composition to provide a film. 

Process for manufacturing battery components

The present invention pertains to an aqueous composition comprising: (A) an aqueous latex comprising at least one vinylidene fluoride (VDF) polymer [polymer (F)] comprising recurring units derived from vinylidene fluoride (VDF) and at least one (meth)acrylic monomer (MA) having formula (I) here below: wherein: &#x2014;R, Rand R, equal to or different from each other, are independently selected from a hydrogen atom and a C-Chydrocarbon group, and &#x2014;Ris a hydrogen atom or a C-Chydrocarbon moiety comprising at least one hydroxyl group, (B) at least one powdery electrode material, and (C) optionally, less than 10% by weight, based on the total weight of the aqueous composition, of at least one organic solvent (S), wherein the polymer (F) in the aqueous latex is under the form of primary particles having an average primary particle size of less than 1 &#x3bc;m, as measured according to ISO 13321. The present invention also pertains to a process for manufacturing an electrode using said aqueous composition, to an electrode comprising a metal substrate coated on at least one surface with said aqueous composition and to use of said electrode for manufacturing a non-aqueous-type electrochemical device. 

Aqueous vinylidene fluoride-(meth)acrylic co-polymer latex, electrode and lithium ion secondary battery using the same

The invention pertains to a process for manufacturing a (per)fluoropolymer, said process comprising polymerizing one or more fluorinated monomers in the presence of a multi-phase medium, said medium comprising:

Method for manufacturing fluoropolymers

The present invention pertains to a solvent based electrode-forming composition which comprises at least one vinylidene fluoride (VDF) polymer and a graphene oxide with an oxygen content of no more than 25 wt % dispersed in an organic solvent, wherein the VDF polymer comprises recurring units derived from vinylidene fluoride (VDF) and from at least one (meth)acrylic monomer (MA) having formula (I) here below: wherein: &#x2014;R, Rand R, equal to or different from each other, are independently selected from a hydrogen atom and a C-Chydrocarbon group, and &#x2014;Ris a hydrogen atom or a C-Chydrocarbon moiety comprising at least one hydroxyl group. The present invention further relates to a process for manufacturing said electrode-forming composition, and the use thereof for manufacturing an electrode of secondary lithium batteries. 

A process for manufacturing a fluoropolymer hybrid organic/inorganic composite comprising: at least one metal compound [compound (M)] of formula: XAY,

Fluoropolymer-based hybrid organic/inorganic composites

A process for manufacturing a (per)fluoroelastomer having a heat of fusion of less than 5 J/g as measured by ASTM D-3418-08, comprising polymerizing at least one fluorinated monomer in the presence of at least one initiator in a polymerization medium comprising: 

Method for manufacturing fluoroelastomers

The present invention pertains to a linear semi-crystalline copolymer [polymer (A)] comprising recurring units derived from vinylidene fluoride (VDF) monomer and at least one hydrophilic (meth)acrylic monomer (MA) of formula: wherein each of R1, R2, R3, equal or different from each other, is independently an hydrogen atom or a C-Chydrocarbon group, and Ris a hydrogen or a C-Chydrocarbon moiety comprising at least one hydroxyl group,said polymer (A) comprising from 0.05 to 10% by moles of recurring units derived from said hydrophilic (meth)acrylic monomer (MA) and being characterized by a fraction of randomly distributed units (MA) of at least 40%, having improved thermal stability, to a process for its manufacture, to a composition comprising the same, and to its use as binder in batteries or for the manufacture of hydrophilic membranes.

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Milan, Italy

Riccardo Pieri