Air self-breathing paper-based microfluid fuel cell embedded with positive electrode

Abstract

The invention discloses an air self-breathing paper-based microfluid fuel cell embedded with a positive electrode. The air self-breathing paper-based microfluid fuel cell comprises an air self-breathing negative electrode, a runner, the positive electrode and a bottom plate and is characterized in that the runner is arranged in a Y shape and is formed by stacking dual layers or multiple layers ofpaper bases, a certain gap is reserved between each layer of paper base, the air self-breathing negative electrode and the positive electrode are respectively arranged at two sides of the runner, thepositive electrode comprises a hydrophilic electrode, one end of the positive electrode is embedded into the runner along a horizontal direction, a wedge-shaped gap is formed between the positive electrode and the runner, a catalytic layer is arranged at a part, embedded into the runner, of the positive electrode, the air self-breathing negative electrode is arranged above the positive electrode and is arranged at the other side of the runner, one end of the air self-breathing negative electrode is arranged above the paper base at a top layer, the air self-breathing negative electrode comprises a hydrophobic porous electrode, and the catalytic layer is arranged at a contact part of the paper base at the top layer and is arranged in a way facing the runner. The air self-breathing paper-based microfluid fuel cell can be widely applied to the field of energy.

Description

technical field [0001] The invention relates to the field of fluid fuel cells, in particular to an air self-breathing paper-based microfluidic fuel cell with an embedded anode. Background technique [0002] Modern society pays more and more attention to environmental protection, public health, and personal health. However, at present, large-scale analytical instruments are usually used to detect the concentration of various biochemical substances in the environment and body fluids. The detection speed is slow, the movement is difficult and other disadvantages. In recent years, a new generation of paper-based microfluidic chips based on electrochemical principles can achieve high-sensitivity and high-specificity quantitative detection, and are widely used in environmental protection, biomedicine and other fields. Paper-based microfluidic chips have the characteristics of low cost, small sample volume, simple operation, fast analysis speed, and easy-to-read results. Immediat...

AI Technical Summary

Problems solved by technology

The fuel consumed at high current density cannot be replenished in time, and a region with low fuel concentration will be formed in the paper porous medium near the anode surface, that is, the fuel concentration boundary layer, which will significantly increase the fuel mass transfer resistance, causing concentration polarization, Limit battery performance

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