HIGH POLYMER ELECTROLYTE SUPPORT, AND BATTERY USING SAME

摘要

PROBLEM TO BE SOLVED: To provide a high polymer support having a high ion conductivity and a superior mechanical strength, and a lithium polymer battery using the same. SOLUTION: In this lithium polymer battery comprising a laminate of polyolefine porous film made porous by drawing, the porous film is formed of a group of undrawn tabular flat surfaces formed roughly at regular intervals roughly in parallel in a film thickness direction, and a group of thin fibers drawn and arranged to run roughly in parallel in the film drawn direction and roughly at regular intervals to be connected to between the tabular flat surfaces. Gaps between the thin fibers connected to between the tabular flat surfaces are roughly two-dimensionally extended to form fine pores of a roughly uniform shape to provide the high polymer electrolyte support having through holes extended straight in the film thickness direction.