POROUS MEMBRANE AND METHOD OF ITS PRODUCTION

摘要

FIELD: process engineering.SUBSTANCE: invention relates to production of porous membrane suitable for use in electrochemical devices such as various storage batteries, capacitors, etc. Porous membrane comprises cellulose fibres including 5 wt % or more of cellulose fibres (per sum of total mass thereof) with diameter of 1 mcm or more and features tensile strength of 50 Nm/g or larger and/or tenacity of 0.40 kN/m or larger.EFFECT: possibility of use as an electrochemical device separator with low specific IR.21 cl, 6 ex, 1 tbl