PURPOSE: To provide a secondary battery having high energy density and good charge-discharg performance by successively stacking a positive electrode using molybdenum trisulfide as active material, an organic polymer electrolyte layer, and a negative electrode using lithium as active electrode on an electroconductive substrate.
CONSTITUTION: A positive electrode 2 is formed in such a manner that ammonium thiomolybdate added with a binder is press-bonded on an electroconductive substrate 1 such as stainless steel plate and molybdenum trisulfide is formed by thermal decomposition. Solvent solution containing electrolyte and organic polymer such as polyethylene oxide is spreaded on the positive electrode 2, and solvent is removed by drying to form an orgainic polymer electrolyte layer 3. A negative electrode 4 comprising lithium or lithium alloy is formed on the electrolyte layer 3 by vapor deposition. This solid thin film secondary battery has large discharge capacity and good charge-discharge performance.
KOTANI NOBORU
KAJITA KOUZOU
