ELECTRODE MATERIAL

摘要

PURPOSE:To enable manufacture of a light weight cell having high energy density and high maximum output density while causing no pollution by forming the electrode material mainly with electrolytic oxidation product of pitch. CONSTITUTION:Residual carbon material or petroleum pitch obtained through distillation of crude oil or catalytic cracking of distillated oil is employed as material. It is anodic oxidized in an electrolytic solution such as alcohol under existence of a conductive salt containing alkaline metal ion as positive ion while aromatic sulfuric acid ion substituted with alkyl group as negative ion thus to produce an electrolytic oxide. It is employed as material to form the positive and the negative electrodes and to form a primary and a secondary cells together with a well known electrolyte. Consequently, an electrode stable against doping/undoping of ion while enable of doping of large quantity of ions can be obtained.