| 摘要 |
PROBLEM TO BE SOLVED: To provide a porous sheet effectively used for the efficient manufacture of all-solid Li secondary battery having an excellent cycle characteristic. SOLUTION: This sheet is an ion conductive solid electrolyte sheet, and formed out of 20 to 80 wt.% of (metha)acrylonitrile copolymer pulp having many fibril fiber of diameter 0.2 to 1μm branched from a fibrous trunk, and 80 to 20 wt.% of polyolefine copolymer pulp. In addition, the sheet is formed to have a percentage of void between 20% and 85%, and thickness equal to or less than 150μm. |
