Method for preparing an electrode for a battery

摘要

A method for preparing an electrode for a battery comprising: (a) preparing a finely-divided carbon powder by subjecting a mass of carbon material to an impact comminuting operation to reduce the particles of said mass to a size wherein the interlayer spacing, d002, is in excess of about 0.35 mm, said carbon powder exhibiting a specific surface BET area of less than about 200 square meters per gram, and the time of comminuting proceeding considerably beyond a maximum observed in a curve of BET surface area value as a function of time upon impact grinding, and proceeding beyond said maximum to a time of grinding whereby reversible capacity becomes asymptotic with said time of grinding; and (b) distributing said carbon powder in a binder which forms a matrix for retaining particles of said distributed carbon powder.