Immobilized electrolyte membrane
AssigneeToa Nenryo Kogyo Kabushiki Kaisha
InventorsTakuji Itoh, Kazuo Saeki, Koichi Kono
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Abstract
Disclosed are immobilized electrolyte membranes having a high electric conductivity and a high mechanical strength, where an ionic conductor such as a polymer electrolyte or an ion-exchange resin is immobilized in pores of a porous solid polymer membrane, particularly of polyolefin having a weight average molecular weight of not less than 5.times.10.sup.5, the porous solid polymer membrane having a thickness of 0.1 .mu.m to 50 .mu.m, a porosity of 40% to 90%, a tensile strength of not less than 200 kg/cm.sup.2, and an average permeable pore diameter of 0.001 .mu.m to 0.1 .mu.m.
Claims19
An electrolyte membrane comprising an ionic conductor immobilized in pores of a porous solid polymer membrane, the porous solid polymer membrane having a thickness of 0.1 .mu.m to 50 .mu.m, a porosity of 40% to 90%, a tensile strength of not less than 200 kg/cm.sup.2, and an average diameter of permeable pores of 0.001 .mu.m to 0.1 .mu.m.
An electrolyte membrane comprising a liquid ionic conductor capillary-condensed and immobilized in pores of a porous solid polymer membrane, the porous solid polymer membrane having a thickness of 0.1 .mu.m to 50 .mu.m, a porosity of 40% to 90%, a tensile strength of not less than 200 kg/cm.sup.2 and an average diameter of permeable pores of 0.001 .mu.m to 0.1.mu.m.
An electrolyte membrane comprising an ion-exchange resin immobilized in pores of a porous solid polymer membrane, the porous solid polymer membrane having a thickness of 0.1 .mu.m to 50 .mu.m, a porosity of 40% to 90%, a tensile strength of not less than 200 kg/cm.sup.2 and an average diameter of permeable pores of 0.001 .mu.m to 0.1 .mu.m.
Dependencies are inferred from the claim text.