Electrochemical cells
First Claim
1. An electrochemical sensor cell comprising a porous membrane of electrically insulating composition, the membrane having pores communicating from one side of the membrane to another,a working electrode disposed on one side,a counter or pseudo-reference electrode disposed on the other side,and wherein a target area of one electrode is liquid permeable and extends over a surface of the porous membrane without blocking underlying pores of the membrane.
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Accused Products
Abstract
An electrochemical cell comprises a porous membrane (8) of electrically insulating composition, the membrane having pores (not illustrated) communicating from one side of the membrane to another, a working electrode (5) disposed on one side and a counter or pseudo-reference electrode (7) disposed on the other side. A target area (11) of one electrode is liquid permeable and extends over the surface of membrane (8) without blocking underlying pores of the membrane. Optional insulating layers (9,10) cover the electrodes (5,7) and opening defines the target area (11). Preferably, the porous membrane is impregnated with reagents, for example GOD/Ferricyanide.
448 Citations
26 Claims
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1. An electrochemical sensor cell comprising a porous membrane of electrically insulating composition, the membrane having pores communicating from one side of the membrane to another,
a working electrode disposed on one side, a counter or pseudo-reference electrode disposed on the other side, and wherein a target area of one electrode is liquid permeable and extends over a surface of the porous membrane without blocking underlying pores of the membrane.
- 13. A method of manufacture of an electrochemical sensor cell comprising the steps of disposing a working electrode on one side of a membrane, said membrane having pores communicating from one membrane side to the other, and disposing a counter or pseudo-reference electrode on the side of the membrane opposite the first, at least one of the electrodes being liquid permeable.
Specification