| 摘要 |
PROBLEM TO BE SOLVED: To provide a porous separator member which is thin, easily manufactured, and manufactured at low cost by arranging separator precursor solution containing a solid granular material and polymer binder at a prescribed ratio on an electrode and changing this separator precursor solution into a porous composite separator to be jointed with the electrode. SOLUTION: A thin layer of separator precursor solution is printed on an electrode surface of an electrochemical battery electrode. Second, the thin layer of the separator precursor solution is vulcanized on the electrode, so as to be changed into a microporous composite separator member. The separator precursor solution is constituted of an ink composed of a solid granular material, dispersed in polymer binder solution dissolved in appropriate solvent. It is preferable to use silica aerosol, which is a main component of a print separator for the solid granular material. In the separator precursor solution, the ratio of the binder to the solid granular material is selected between 5/95 and 50/50. |
