摘要: Preparation of an electrolyte film for lithium/polymer batteries by extruding a powder mixture containing polymer, lithium salt and additive consisting ultra fine metal oxide, such as silica, aluminum, or titanium oxide with particle size between about 7 40 nm. The role the is to prevent formation adhesive solid blocks in allow introduction this extruder. Electrolyte compositions, electrolytes well electrochemical generators obtained according invention are also described.