POSITIVE ELECTRODE COMPOSITION CONTAINING POLY(AMINOTHIOPHENOL) DERIVATIVE, NONAQUEOUS SECONDARY BATTERY OBTAINED FROM THE COMPOSITION AND PREPARATION METHODS THEREOF

摘要

PURPOSE: A positive electrode composition containing a poly(aminothiophenol) derivative, a nonaqueous secondary battery obtained from the composition and their preparation methods are provided, to allow a positive electrode composition to be produced massively with a low cost and to improve the capacity characteristic of a nonaqueous secondary battery remarkably and the cycle stability in charge/discharge. CONSTITUTION: The positive electrode composition comprises an active material comprising the doped poly(aminothiophenol) derivative having the repeating unit represented by the formula; a conductive agent; and a binder, wherein X is H, Li, Na or K; Y is F, Cl, Br, I, ClO4, PF6, BF4, CF3SO3, HSO4 or C12H25C6H4SO3; k, k' and k'' are 0.01-0.5; m is 0-0.99; and n is 5-50,000. Preferably the conductive agent is an amorphous carbon; and the binder is at least one selected from the group consisting of poly(tetrafluoroethylene), a copolymer of vinylidene fluoride and hexafluoropropylene, poly(vinylidene fluoride), and a copolymer of vinylidene fluoride and tetrafluoroethylene.