Patent ID: 7989110
Filing Date: 2011-08-02
Classification: C08J,H01B,H01G,H01M,Y02E

Abstract:
1. An ionic conduction material comprising a polymer matrix, at least one ionic species and at least one reinforcing agent, wherein: the polymer matrix is a solvating polymer optionally having a polar character, non-solvating polymer carrying acidic ionic groups selected from the group consisting of alkylsulfonic groups, arylsulfonic groups, perfluorosulfonic groups, and perfluoro-carboxylic groups, or a mixture of a solvating or non-solvating polymer and an aprotic polar liquid; the ionic species is either an ionic compound selected from salts and acids, said compound being in solution in the polymer matrix, or an anionic or cationic ionic group fixed by covalent bonding on the polymer, or a combination of the two; the reinforcing agent is a cellulosic material comprised of cellulose single crystals or of cellulose microfibrils; wherein a reinforcing agent network is formed in the material from the reinforcing agent being brought into contact with the polymer in solution or in the form of a latex in suspension, or with precursors of the polymer, so that the reinforcing agent network is formed in the material to improve the mechanical strength of said material.