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US 11,081,692 B2Granted
Composite electrodes
AssigneesSolvay SA, Commissariat a energie atomique et aux energies alternatives
InventorsOlivier Pras, Helene Rouault, Julio A. Abusleme
Life of this patent
Estimating the term…
Abstract
The present invention pertains to an electrode-forming composition, to use of said electrode-forming composition in a process for the manufacture of a composite electrode, to said composite electrode and to a secondary battery comprising said composite electrode.
Claims14
An electrode-forming composition [composition (C1)] comprising:
- at least one partially fluorinated fluoropolymer [polymer (F)], wherein polymer (F) is a functional partially fluorinated polymer [polymer (FF-2)] comprising recurring units derived from at least one fluorinated monomer [monomer (F)] and at least one hydrogenated monomer comprising at least one hydroxyl end group [monomer (HOH)],
- at least one electro-active compound [compound (EA)],
- at least one metal compound [compound (M)] of formula (V):
- X4-mAYm (V)
- 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 and X is a hydrocarbon group, optionally comprising one or more functional groups,
- an electrolyte medium comprising at least one metal salt [medium (EL)],
- at least one organic solvent [solvent (S)] selected from the group consisting of alcohols, ketones, linear or cyclic esters, linear or cyclic amides and dimethyl sulfoxide, and
- optionally, at least one conductive agent [compound (C);
- wherein at least one of the metal compounds (M) is grafted to polymer (FF-2) by at least one of the hydroxyl end groups of the hydrogenated monomer (HOH) through at least one —O-A bond.
6 more elements
Dependencies are inferred from the claim text.