Ugorchuk V. Cathode matters of Lithium sources of current on the basis of the modified nanodispersive rutile and non-stoichiometric TiO2-Fe2O3-LiOH

The dissertation for the Candidate Degree in Physics and Mathematics. Specialty 01.04.24 is physics of the colloid systems - Prekarpathion national university of the name of Vasiliy Stefanik, Ivano-Francovsk, 2008. In dissertation on the basis of X-ray analysis, Mossbauer, electrical impendence spectroscopies and electrochemical measurements it is establish optimal forms of the cathode active Lithium current sourceson (LCS) the based of TiO2 (rutile). It is showed that vacuum heating of the system microdispersive a-Fe - nanodispersive TiO2 (rutile), microdispersive Fe3O4 - nanodispersive TiO2 lead to formation of globular system of an electric contact dopant microparticles, covered by nanodispersed TiO2 (rutile) think layer, that provide high intercalation and electric properties of cathode work. Investigations of TiO2-Fe2O3-LiOH ceramic synthesised system of different nonstoichiometric degree showed double (electron-ionic) current mechanism; the influence on charge transports depends on composition and thermal conditions. Electrochemical intercalation by Li+ are carried into multiphase system. Maine of intercalation matrix of which are spinel and pseudobrookite grains. Application possibility of synthesised substances as LCS cathodes of cyclic type is shown. The exploitation characteristics of the laboratory current accumulator are established.