%0 Journal Article
%T Mixed solid device based on conducting polymer composite and polymer electrolyte
%A Neves
%A Silmara
%A Fonseca
%A Carla P.
%J Journal of the Brazilian Chemical Society
%D 2004
%I Sociedade Brasileira de Qu¨Şmica, SBQ
%R 10.1590/S0103-50532004000300009
%X tetraethyl orthosilicate (teos) derived sol-gel porous films have been utilized as template for the electrochemical polymerization of aniline. polyaniline-silica composites were obtained and the redox behavior and charge/discharge capacities of a lithium polymeric battery using poly (dimethylsiloxane- co-ethylene oxide) as gel polymeric electrolyte, were investigated. the composite presented a high initial capacity (140 ma h g-1) and a reversible capacity of 75 ma h g-1 after 100 charge/discharge cycles. the decrease in the specific capacity was attributed to an increase in charge transfer resistance and a decrease in the diffusion coefficient measured by electrochemical impedance spectroscopy.
%K polyaniline
%K composites
%K solid polymer electrolyte
%K batteries.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0103-50532004000300009&lng=en&nrm=iso&tlng=en