Porous composite product in particular with a high specific surface preparation process and electrode formed of a porous composite film for an electro-chemical assembly
AssigneeBollore
InventorsJean-Francois Penneau, Francois Capitaine, Philippe Le Goff
Life of this patent
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Abstract
A porous composite product in the form of a film with a high specific surface. Used in a wide range of electrochemical products especially in the field of selective membranes, packaging or catalysis. The porous composite product has a high homogeneity in the distribution of the filler and a continuous structure. The product is capable of being obtained by extrusion.
Claims24
An electrode for an electrochemical assembly, such as an electrochemical generator or accumulator, the electrode being formed of a film of porous composite product comprising a polymeric material and between 30% and 90% by weight of one or more fillers, the said film being obtained by extrusion, the porous composite product exhibiting a “BET” specific surface of greater than 10 m2/g and having an electrochemical capacity of greater than 2 F/g, and of an electrochemically active material.
An electrode for a supercapacitor or capacitor, the electrode being formed of a film of porous composite product comprising a polymeric material and between 30% and 90% by weight of one or more fillers, the said film being obtained by extrusion, the porous composite product exhibiting a “BET” specific surface of greater than 10 m2/g and having an electrochemical capacity of greater than 2 F/g.
An electrochemical assembly, in particular an electrochemical generator, capacitor or supercapacitor comprising two electrodes and a separator impregnated with an electrolyte, each electrode being formed of a film of porous composite product comprising a polymeric material and between 30% and 90% by weight of one or more fillers, the said film being obtained by extrusion, the porous composite product exhibiting a “BET” specific surface of greater than 10 m2/g and having an electrochemical capacity of greater than 2 F/g.
An application of a film of porous composite product comprising a polymeric material and between 30% and 90% by weight of one or more fillers, the said film being obtained by extrusion, the porous composite product exhibiting a “BET” specific surface of greater than 10 m2/g and having an electrochemical capacity of greater than 2 F/g, for the electromechanical storage of energy.
Dependencies are inferred from the claim text.