Abstract:
A membrane for selective transport of substances includes: a porous substrate with a comb polymer. The comb polymer contains a polymer main chain and several lateral chains covalently bonded to the polymer main chain. At least one of the several lateral chains has at least one Lewis-acid and/or Lewis-base functionality.
Abstract:
The present invention relates to separators for electrochemical cells comprising (A) at least one layer comprising (a) crosslinked polyvinylpyrrolidone in the form of particles, (b) at least one binder, and (c) optionally a base structure, where the mass ratio of the crosslinked polyvinylpyrrolidone in the form of particles (a) to the sum of the mass of the binders (b) in the layer (A) has a value in the range from 99.9:0.1 to 50:50. The present invention further relates to the use of inventive separators and to apparatuses, especially electrochemical cells, comprising inventive separators.
Abstract:
A separator for at least one of electrochemical energy accumulators or converters includes: a porous substrate with a comb polymer, the comb polymer containing a polymer main chain along several lateral chains that are covalently bonded to the polymer main chain. At least one of the lateral chains has at least one Lewis-acid or Lewis-base functionality.