Title:
METHOD FOR MANUFACTURING A POLYMER ELECTROLYTE SEPARATOR AND POLYMER ELECTROLYTE SEPARATOR THEREFROM
Document Type and Number:
WIPO Patent Application WO/2013/072216
Kind Code:
A1
Abstract:
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: - 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 C1-C3 hydrocarbon group, and ROH is a C1-C5 hydrocarbon moiety comprising at least one hydroxyl group [polymer (F)]; - at least one metal compound [compound (M)] of formula: X4-mAYm wherein 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 - at least one electrolyte (E); and - 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 -Ym-1AX4-m groups, with m, Y, A and X having same meaning as above detailed; (iii) hydrolyzing and/or polycondensing compound (M) and/or pendant -Ym.-1AX4-m groups, 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.
Inventors:
ABUSLEME JULIO A (IT)
PIERI RICCARDO (IT)
FOSSATI PAOLO (IT)
PIERI RICCARDO (IT)
FOSSATI PAOLO (IT)
Application Number:
PCT/EP2012/071881
Publication Date:
May 23, 2013
Filing Date:
November 06, 2012
Export Citation:
Assignee:
SOLVAY SPECIALTY POLYMERS IT (IT)
International Classes:
C08J5/22; C08F8/00; C08F8/12; C08F8/42; C08F8/44; C08F214/18; C08F220/20; H01M8/02; H01M8/24; H01M10/052; H01M10/0565; H01M50/403
Domestic Patent References:
| WO2011121078A1 | 2011-10-06 | |||
| WO2011121078A1 | 2011-10-06 | |||
| WO2000003444A1 | 2000-01-20 |
Foreign References:
| US20100040927A1 | 2010-02-18 | |||
| US6203944B1 | 2001-03-20 |
Attorney, Agent or Firm:
BENVENUTI, Federica et al. (310, Bruxelles, BE)
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Claims: