| 摘要 |
PROBLEM TO BE SOLVED: To easily provide a film having a large area, the holding property of an electrolytic solution in a wide temperature range, long-term stability, and improved mechanical strength by fixing an aprotic electrolytic solution to a polyolefin fine porous film containing organopolysiloxane having affinity to the aprotic electrolytic solution. SOLUTION: An organopolysiloxane solution solved in a solvent such as toluene not solving a polyolefin fine porous film is preferably applied by coating to the polyolefin fine porous film such as ultrahigh-molecular weight polyethylene containing an electronic conductive material. The film may be formed after organopolysiloxane is filled in the gelatinous molding of a polyolefin composition containing the electronic conductive material. The aprotic electrolytic solution is fixed by impregnating, and the film has the prescribed thickness and relative dielectric constant. This fixed liquid film conductor has the porous film base skeleton of polyolefin, the electronic conductivity is not reduced, and the safety at the time of an overcharge is improved. |
