Yasunobu Kodama

Manufacturing method for a polymer solid electrolyte cell which uses composite positive electrode

A quick and simple manufacturing method for a current collector single body sheet-like composite positive electrode of superior electrode performance includes a positive electrode mixture generating process mixing non-aqueous solvent, polymer material, electrolyte salt, positive electrode active material and electrically conductive material, a positive electrode mixture pressing out process after the mixture has been applied onto the positive electrode current collector and a process for hardening the sheet-like electrode, at a same time attaching the sheet-like electrode to the positive electrode current collector using heat or ionizing radiation to polymerize the polymer material distributed in the mixture. An efficient manufacturing method for a polymer solid electrolyte cell of superior cell capacity and cell characteristics which uses said composite positive electrode additionally includes a process for arranging a polymer solid electrolyte precursor on a negative electrode, a process for arranging a current collector single body composite positive electrode on the electrolyte precursor on the surface of the negative electrode so that the positive and negative electrodes face each other with electrolyte precursor in-between, and a process for hardening the electrolyte precursor to form a polymer solid electrolyte film, at a same time attaching said film to the positive electrode by using heat or ionizing radiation to polymerize the polymer solid electrolyte precursor.