公开(公告)号：US12110352B2

公开(公告)日：2024-10-08

申请号：US17311034

申请日：2019-12-02

Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

Inventor： Serena Carella ,  Mirko Mazzola ,  Marco Avataneo ,  Andrea Vittorio Oriani ,  Emanuele Di Nicolo′

IPC: C08F214/22 ,  C08F2/22 ,  C08F2/38 ,  C08F214/18 ,  C08F214/28 ,  C08F220/06 ,  C08F220/20 ,  C08F222/20 ,  C08J3/12 ,  C08K3/36 ,  H01G11/30 ,  H01M50/403 ,  H01M50/426 ,  H01M50/446 ,  H01M50/449

CPC classification number: C08F214/22 ,  C08F2/22 ,  C08F2/38 ,  C08F214/28 ,  C08F220/06 ,  C08F220/20 ,  C08J3/12 ,  C08K3/36 ,  H01G11/30 ,  H01M50/403 ,  H01M50/426 ,  H01M50/446 ,  H01M50/449 ,  C08F2438/03 ,  C08F2810/40

Abstract: The present invention pertains to an aqueous dispersion of a vinylidene fluoride polymer having a high molecular weight and possessing a substantially linear structure, leading to reduced amount of gels/insoluble fractions, to a method for its preparation and to its use for the manufacture of electrochemical cell components, such as electrodes and/or composite separators or for the manufacture of membranes.

公开(公告)号：US11555094B2

公开(公告)日：2023-01-17

申请号：US16638388

申请日：2018-03-20

Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

Inventor： Serena Carella ,  Eliana Ieva ,  Mirko Mazzola ,  Giulio Brinati

IPC: C08J3/05 ,  C08J5/22 ,  C09D127/16 ,  H01G11/26 ,  H01G11/52 ,  H01G11/84 ,  H01M4/62 ,  H01M10/0525 ,  H01M50/403 ,  H01M50/411 ,  H01M50/449

Abstract: The present invention relates to a method for stabilizing aqueous dispersions, notably of polymers based on vinylidene fluoride (VDF), and to the use of the stabilized aqueous dispersion thus obtained in electrochemical applications.

公开(公告)号：US20240368318A1

公开(公告)日：2024-11-07

申请号：US18291476

申请日：2022-07-19

Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

Inventor： Mirko Mazzola ,  Emanuele Di Nicolo' ,  Giulio Brinati ,  Rosita Lissette Pena Cabrera ,  Andrea Vittorio Oriani

IPC: C08F214/22 ,  C08F2/22 ,  C08F2/38 ,  C08F220/06 ,  C08K3/04 ,  C08K3/22 ,  H01M4/04 ,  H01M4/1391 ,  H01M4/62

Abstract: The present invention pertains to a method for making a reinforced shaped article comprising the steps of: a) providing one or more fluoropolymers having a melting point Tm, said one or more fluoropolymers being characterized in that they: (i) comprise more than 30% by moles of recurring units derived from VDF, with respect to the total number of recurring units of the polymer; (ii) have iodine-containing chain ends —CH2I in an amount of 0.1 to 0.9 per chain; b) dissolving said fluoropolymer in a suitable solvent and forming a precursor solution c) precipitating said fluoropolymer as a solid from said precursor solution thereby obtaining a shaped article comprising said fluoropolymer e) thermally treating said shaped article for at least 15 minutes at a temperature comprised between 100° C. and the lowest melting point Tm of said one or more fluoropolymers thereby obtaining said reinforced shaped article.

公开(公告)号：US11655325B2

公开(公告)日：2023-05-23

申请号：US16771663

申请日：2018-12-17

Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

Inventor： Serena Carella ,  Andrea Vittorio Oriani ,  Alessandro Ghielmi ,  Mirko Mazzola ,  Elena Molena

IPC: H01M50/414 ,  H01M50/403 ,  C09D153/00 ,  C08F293/00 ,  H01M50/449 ,  H01G9/02 ,  H01G11/52 ,  H01M50/489 ,  H01M50/42 ,  H01M50/426

CPC classification number: C08F293/00 ,  C09D153/00 ,  H01G9/02 ,  H01G11/52 ,  H01M50/403 ,  H01M50/414 ,  H01M50/42 ,  H01M50/426 ,  H01M50/449 ,  H01M50/489

Abstract: Provided are fluorinated block copolymers comprising alternating hard blocks and soft blocks, wherein both said hard and soft blocks comprise vinylidenfluoride (VDF). Also provided is the use of said block copolymers in applications for lithium batteries including an electrochemical cell and a separator for an electrochemical cell which is coated with a composition comprising the fluorinated block copolymers. Further provided is a process for the manufacture of the separator.

公开(公告)号：US12071494B2

公开(公告)日：2024-08-27

申请号：US17311029

申请日：2019-12-02

Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

Inventor： Serena Carella ,  Mirko Mazzola ,  Giulio Brinati ,  Andrea Vittorio Oriani ,  Emanuele Di Nicolo'

IPC: C08F214/22 ,  C08F220/06 ,  C08L27/16 ,  H01M4/62 ,  H01M50/42 ,  H01M50/426 ,  H01M50/449 ,  H01M50/403

CPC classification number: C08F214/22 ,  C08F214/225 ,  C08F220/06 ,  H01M4/623 ,  H01M50/42 ,  H01M50/426 ,  H01M50/449 ,  C08L27/16 ,  H01M50/403 ,  C08F214/225 ,  C08F2438/00 ,  C08F2500/17

Abstract: The present invention pertains to an aqueous dispersion of a vinylidene fluoride polymer having a high molecular weight and possessing a substantially linear structure, leading to reduced amount of gels/insoluble fractions, to a method for its preparation and to its use for the manufacture of electrochemical cell components, such as electrodes and/or composite separators or for the manufacture of membranes.

公开(公告)号：US20240186522A1

公开(公告)日：2024-06-06

申请号：US18552095

申请日：2022-03-22

Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

Inventor： Azzurra Agostini ,  Rosita Lissette Pena Cabrera ,  Mirko Mazzola ,  Giulio Brinati ,  Bradley Lane Kent ,  Marco Dossi

IPC: H01M4/62 ,  C08F214/22 ,  H01M4/02 ,  H01M4/04 ,  H01M4/136 ,  H01M4/1397 ,  H01M4/58

CPC classification number: H01M4/623 ,  C08F214/225 ,  H01M4/0404 ,  H01M4/136 ,  H01M4/1397 ,  H01M4/5825 ,  C08F2800/10 ,  H01M2004/028

Abstract: The present invention pertains to electrode-forming compositions, comprising an electro-active material and a VDF based polymer comprising at least 70% by moles of recurring units derived from VDF, less than 0.9% by moles of recurring units derived from monomers comprising a functional group selected from carbonylic, carboxylic, sulfonic, sulfinic, phosphonic, hydroxy, —SH, ester or mixtures thereof, having a TM between 130° C. and 180° C. and comprising less than 700 mmoles/kg of chain ends —CF2H and —CF2CH3. The composition has good adhesion and is physically stable over time. The invention also relates to the use of said electrode-forming compositions in a process for the manufacture of electrodes, to said electrodes and to electrochemical devices such as secondary batteries comprising said electrodes.

公开(公告)号：US20240063506A1

公开(公告)日：2024-02-22

申请号：US18258657

申请日：2021-12-09

Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

Inventor： Andrea Vittorio Oriani ,  Matilde Valeria Solmi ,  Mirko Mazzola

IPC: H01M50/426 ,  H01G11/52 ,  H01M50/403 ,  H01M50/417 ,  H01M50/451 ,  H01M50/454 ,  H01M50/457

CPC classification number: H01M50/426 ,  H01G11/52 ,  H01M50/403 ,  H01M50/417 ,  H01M50/451 ,  H01M50/454 ,  H01M50/457

Abstract: The present invention pertains to a coating composition comprising a vinylidene fluoride polymer aqueous dispersion and to its use for the manufacture of electrochemical cell components, such as separators.