BINDER COMPOSITION AND SLURRY COMPOSITION FOR LITHIUM-ION ELECTRICAL STORAGE DEVICES
The present invention provides a binder composition comprising (a) at least one fluoropolymer comprising the residue of vinylidene fluoride; and (b) a solvent system comprising (i) a trialkyl phosphate; and (ii) a co-solvent comprising a lactone and/or a molecule comprising a sulfoxide and/or sulfon...
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Main Authors | , , |
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Format | Patent |
Language | English French |
Published |
06.04.2023
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Subjects | |
Online Access | Get full text |
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Summary: | The present invention provides a binder composition comprising (a) at least one fluoropolymer comprising the residue of vinylidene fluoride; and (b) a solvent system comprising (i) a trialkyl phosphate; and (ii) a co-solvent comprising a lactone and/or a molecule comprising a sulfoxide and/or sulfone functional group; wherein the trialkyl phosphate and the co-solvent together comprise at least 50% by weight of the solvent system, based on the total weight of the solvent system. Also disclosed are slurry compositions, electrodes, and electrical storage devices.
La présente invention concerne une composition de liant comprenant (a) au moins un fluoropolymère comprenant le résidu de fluorure de vinylidène ; et (b) un système de solvant comprenant (i) un trialkyle phosphate ; et (ii) un co-solvant comprenant une lactone et/ou une molécule comprenant un groupe fonctionnel sulfoxyde et/ou sulfone ; le trialkylphosphate et le co-solvant comprenant ensemble au moins 50 % en poids du système de solvant, sur la base du poids total du système de solvant. Des compositions de suspension, des électrodes et des dispositifs de stockage électrique sont également divulgués. |
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Bibliography: | Application Number: CA20223230443 |