申请人:Hirano Tetsuji
公开号:US20070269710A1
公开(公告)日:2007-11-22
A liquid electrolyte composed of a base A and phosphoric acid B in a molar ratio A:B in a range of 1:3 to 1:50 having a solidification temperature of lower than −30° C.; and a composite electrolyte membrane comprising a porous body impregnated with such a liquid electrolyte.