2-Naphthylacetylene (2-NA) polymer is one the most attractive
conductive polymer for the anode of rechargeable battery based
on the p-conjugation in the main chain. 2-NA polymer exhibits
new advantages: excellent processability, solubility and
stability. These properties could complement now the
advantages of polyacetylenes known before: high power density,
high energy density, and low weight. First task solved in
present work was to prove the ability of 2-NA polymer to
incorporate Li and work as anode. Second task solved was the
study of stimulated electron and ion transport in polymer by a
strong and inhomogeneous electric field. This electric field
can be created by voltage applied to nanometer-scale clusters
deposited on the very thin film of electrically conductive
polymer. The probe of UHV Scanning Tunneling Microscope (STM)
was used in present work as a model of a single
cluster. Strong electric field allowed visualization of low
conductive polymer in STM experiment and provided high current
density in thin film battery. The multi-layer Li ion
rechargeable thin film battery with 2-NA polymer anode, glass
electrolyte, and Li intercalated V_2O_5 cathode was
prepared. The battery was studied in situ by low current UHV
STM/AFM layer by layer. Spatial variations of current through
the polymer anode were observed at two polarities of voltage
with molecular resolution. STM tip contacted mechanically to
the surface of the anode. Cycling of virgin polymer by
alternating positive and negative voltage with zero final
charge on the battery revealed structure of ordered fibrils in
current image of the polymer. Conductivity increased by a
factor of 3 due to structural changes in the polymer. The
polymer anode of the battery was prepared and studied by STM
in an initially discharged state. At the final stage of
experiment the polymer was covered with a collector. The whole
battery was charged to a voltage of 2.5 V and its conductivity
increased by a factor of 10^5 due to Li intercalation of the
anode.