Various polyamides containing a disulfide bond in their main chain were prepared by condensation of a diacid, 3,3＇-dithiodipropionic acid (P), 6,6＇-dithiodinicotinic acid (N), or 2,2＇-dithiodibenzoic acid (B) and a diamine, alkyldiamine (I, II, III, and IV:NH2-(CH2)(n)-NH2, n=4, 6, 8, and 12) or cystamine, V:NH2-(CH2)(2)-S-S-(CH2)(2)-NH2. Polyamides P-I, P-II, P-III, P-IV, and P-V were insoluble common organic solvents, but soluble in formic acid or trifluoroacetic acid. Polyamides containing N or B as the acid moiety, i.e. aromatic polyamides, were soluble in N,N＇-dimethylformamide or dimethyl sulfoxide. The electrochemical behavior of P-II electrode in the organic electrolytes, such as propylene carbonate (PC), PC-1,2-dimethoxyethane (DME) mixture, ethylene carbonate (EC)-DME mixture, which are used as the electrolytes for common lithium batteries was investigated. In the mixed electrolyte, PC-DME (1:1, by volume) a good electrochemical response of P-II electrode based on the redox of disulfide bonds in the polymer was observed. Charge/discharge cycling tests of Li/P-II cells were also performed. At the first discharge, the net capacity of the cell was 97.5 Ah kg(-1) (this value was calculated from the weight of loaded P-II on the electrode). Utilization of P-II was 53%. Cell capacity versus cycle number was also investigated.