A cotton thread-based passive microfluidic fuel cell

Abstract

The invention discloses a cotton-thread-based passive micro-fluid fuel cell, which comprises an anode carbon paper and a cathode carbon paper; the cotton-thread-based passive micro-fluid fuel cell is characterized in that a first cotton thread and a second cotton thread are arranged on the anode carbon paper and the cathode carbon paper; the first cotton thread and the second cotton thread are isolated by a third cotton thread; one end of the first cotton thread is inserted to a first inlet culture dish, anode electrolyte is stored in the first inlet culture dish; one end of the second cotton thread is inserted to an inlet culture dish, and cathode electrolyte is stored in a second inlet culture dish; one end of the third cotton thread inserted to a third inlet culture dish, and isolating liquid is stored in the third inlet culture dish; the other ends of the first cotton thread, the second cotton thread and the third cotton thread are inserted to an outlet culture dish; the faces where the anode carbon paper and the cathode carbon paper are in contact with the cotton threads are coated with an anode catalyst layer and a cathode catalyst layer. By means of the capillary force of the cotton thread and the gravity, the continuous flow of the cathode fluid and the anode fluid is realized. The cotton-thread-based passive micro-fluid fuel cell can be widely applied to energy source, chemical industry, environment-friendly, and other domains.

Description

technical field [0001] The invention relates to the field of fuel cells, in particular to a cotton thread-based passive microfluidic fuel cell. Background technique [0002] Microfluidic fuel cells (Microfluidic fuel cells) use the laminar flow of fluid at the micro scale to naturally separate fuel and oxidant, thereby removing the proton exchange membrane used to separate the anode and cathode in traditional micro fuel cells, which not only simplifies the battery The structure also reduces the battery cost. However, most of the current research on microfluidic fuel cells requires external driving devices (usually micro-syringe pumps) to drive liquid flow to maintain the laminar flow of fuel and oxidant, and the use of external driving devices not only greatly increases the overall The volume and cost of the fuel cell system, and reduce the net output power of the microfluidic fuel cell, severely limit its further miniaturization and practical application. Therefore, a com...

AI Technical Summary

Problems solved by technology

However, most of the current research on microfluidic fuel cells requires external driving devices (usually micro-syringe pumps) to drive liquid flow to maintain the laminar flow state of fuel and oxidant, and the use of external driving devices not only greatly increases the overall The volume and cost of the fuel cell system, and reduce the net output power of the microfluidic fuel cell, severely limit its further miniaturization and practical application

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