Method for preparing an electrochemical cell having a gel...

Details Method for preparing an electrochemical cell having a gel... Method for preparing an electrochemical cell having a gel...

H - Electricity

01

M

H01M 10/0565 (2010.01) H01M 10/058 (2010.01)

Patent

CA 2717503

The invention relates to a method for manufacturing an electrochemical cell comprising an anode and a cathode separated by a separator and a gel electrolyte. The method comprises the steps of assembling the electrodes and the separator, and injecting a liquid electrolyte composition between the electrodes, the liquid electrolyte composition comprising a polymer, an aprotic liquid solvent and a lithium salt, wherein the polymer in the liquid electrolyte composition has functional groups capable of polymerizing via cationic polymerization, and the cell is submitted to an electrochemical cycling comprising a charging step and a discharging step.

L'invention concerne un procédé de fabrication d'une pile électrochimique comprenant une anode et une cathode séparées par un séparateur et un gel électrolytique. Le procédé comprend les étapes consistant à assembler les électrodes et le séparateur et injecter une composition électrolytique liquide entre les électrodes, la composition électrolytique liquide comprenant un polymère, un solvant liquide aprotique et un sel de lithium, le polymère dans la composition électrolytique liquide ayant des groupes fonctionnels capables de polymériser par polymérisation cationique, et la pile étant soumise cycliquement à des étapes de charge et des étapes de décharge.

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