Production techniques, structure, and electrochemical properties of conduct
ing thin-film materials consisting of a polyethylene (PE) substrate covered
with a polyacetylene (PA) layer are studied. Properties of a free PA film
are determined by the catalyst used in its synthesis. Properties of composi
tes depend on the optimum selection of the PA/PE ratio (by weight), the cat
alyst used for polymerizing PA, and the PE structure. The capacity of compo
sites is higher than that of free PA films. This points to the possible rol
e of an increased transport of lithium cations at interfaces.