Dispersed solution of carbon-containing materials for the production of current collectors

Abstract

A method of preparing a dispersed solution of carbon-containing particles of nanometric size includes: preparing a polymeric matrix of a determined viscosity, then introducing into the matrix a fraction of carbon-containing particles and a fraction of wetting agent, the solvent of the matrix, and maintaining under agitation until a sol of stable viscosity is obtained, these operations being repeated until the carbon-containing particles and the solvent are exhausted. The dispersal solution includes: in a ratio to the total volume of solution: i) 1% to 4%, preferably 2% to 4% (m/v), of carbon-containing particles in suspension, ii) 20% to 40% (v/v) of a polymeric matrix, and iii) a wetting agent, the solvent of the polymeric matrix, said dispersed solution comprising neither binder nor dispersing agent.

Dependencies are inferred from the claim text.