▎ 摘　　要

NOVELTY - The electrochemical cell comprises a thin polymer membrane comprising three different adjacent sectors (S1-S3) which are made of the same appropriately seamlessly modified polymer, conductive phases incorporating in the polymer, or conductive fillers such as graphene, metal, or a combination. The polymer material incorporates graphene nanoplatelets and acts as a cathode in the first sector (S1). The polymer material acts as an insulating spacer in the second sector (S2). The polymer material acts as an anode in the third sector (S3), where the metal filler is in the form of dispersed powder or dispersed flakes. USE - Multi-composite electrochemical cell used as wearable sensor for easy and immediate electrochemical detection of presence of sweat usable for monitoring physiological parameters for medical or sports purposes, for early diagnosis of diseases, or for prevention of dehydration states during both sports and during work activities, and in applications for generation of low voltage electricity (all claimed) used in signaling, lighting and rescue process. ADVANTAGE - The electrochemical cell: is wearable, manageable, reusable and easy-to-use; and is non-invasive and cost-effective. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: use of electrolytic cell with polymer membrane; and a method of producing electrolytic cell with polymer membrane. DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of the electrochemical cell. S1First sector S2Second sector S3Third sector