(JP9097618-A)      A gelled polymer electrolyte comprises an organic electrolyte soln. and a polymer alloy comprising a polymer (I) which is hardly soluble in the organic electrolyte soln. and another polymer (II) which is soluble in the solution. Also claimed is a lithium polymer battery comprising a cathode, an anode and a gelled polymer electrolyte as above placed between the electrodes. Also claimed is preparing a gelled polymer electrolyte comprising preparing a polymer alloy by combining polyvinylidene fluoride or a copolymer including vinylidene fluoride with polyethylene oxide to be mixed together or dissolved into each other, and gelling a film, by impregnating the film with an organic electrolyte.    USE -   Lithium secondary batteries are highly promising as the new secondary battery type of the next generation.    ADVANTAGE -   Polymer electrolyte has both mechanical strength and ionic conductivity. The lithium polymer battery demonstrates a discharge characteristic equiv. to those of batteries with a liq. electrolyte system. It has high safety and reliability and is free from internal short-circuiting.    (EP766329-B1)      A gelled polymer electrolyte comprises an organic electrolyte soln. and a polymer alloy comprising a polymer (I) which is hardly soluble in the organic electrolyte soln. and another polymer (II) which is soluble in the solution. Also claimed is a lithium polymer battery comprising a cathode, an anode and a gelled polymer electrolyte as above placed between the electrodes. Also claimed is preparing a gelled polymer electrolyte comprising preparing a polymer alloy by combining polyvinylidene fluoride or a copolymer including vinylidene fluoride with polyethylene oxide to be mixed together or dissolved into each other, and gelling a film, by impregnating the film with an organic electrolyte.    USE -   Lithium secondary batteries are highly promising as the new secondary battery type of the next generation.    ADVANTAGE -   Polymer electrolyte has both mechanical strength and ionic conductivity. The lithium polymer battery demonstrates a discharge characteristic equiv. to those of batteries with a liq. electrolyte system. It has high safety and reliability and is free from internal short-circuiting.    (US6165645-A)      A gelled polymer electrolyte comprises an organic electrolyte soln. and a polymer alloy comprising a polymer (I) which is hardly soluble in the organic electrolyte soln. and another polymer (II) which is soluble in the solution. Also claimed is a lithium polymer battery comprising a cathode, an anode and a gelled polymer electrolyte as above placed between the electrodes. Also claimed is preparing a gelled polymer electrolyte comprising preparing a polymer alloy by combining polyvinylidene fluoride or a copolymer including vinylidene fluoride with polyethylene oxide to be mixed together or dissolved into each other, and gelling a film, by impregnating the film with an organic electrolyte.    USE -   Lithium secondary batteries are highly promising as the new secondary battery type of the next generation.    ADVANTAGE -   Polymer electrolyte has both mechanical strength and ionic conductivity. The lithium polymer battery demonstrates a discharge characteristic equiv. to those of batteries with a liq. electrolyte system. It has high safety and reliability and is free from internal short-circuiting.