Single-strand electrolyte microfluidic fuel cell with cathode and anode co-currently arranged

Abstract

The invention discloses a single-strand electrolyte microfluidic fuel cell with a cathode and an anode being arranged in a down-flow manner, which comprises a cathode cover plate, an air self-breathing cathode, a flow field plate, a permeable porous anode and a bottom plate, and is characterized in that the cathode cover plate is provided with an electrolyte inlet and a cathode breathing hole, andthe cathode breathing hole is positioned behind the electrolyte inlet; the flow filed plate is arranged below the cathode cover plate and provided with a main flow channel for a solution to flow, andthe main flow channel is communicated with the electrolyte inlet; the self-breathing cathode is placed on the flow field plate and positioned below the cathode breathing hole; the permeable porous anode is arranged behind the self-breathing cathode and embedded in the flow channel; and the bottom plate is provided with a fuel inlet which is communicated with the main flow channel, the electrolyteflows into the main flow channel from the electrolyte inlet, flows through the self-breathing cathode firstly, then is mixed with the fuel entering from the fuel inlet, enters the permeable anode together and is discharged from the flow channel outlet. The single-strand electrolyte microfluidic fuel cell can be widely applied to the fields of energy sources and the like.

Description

technical field [0001] The invention relates to a fuel cell, in particular to a single-strand electrolyte microfluidic fuel cell with cathode and anode arranged in parallel. Background technique [0002] In recent years, with the development of science and technology and the popularization of mobile Internet, the use of portable electronic devices has become more and more extensive. Most of the existing portable electronic devices use lithium batteries as power sources, but lithium batteries have significant disadvantages such as low energy density, short running time, and poor environmental temperature adaptability. Compared with traditional lithium batteries, micro fuel cells have attracted extensive attention because of their advantages such as high energy density, long-term operation, and easy integration. [0003] Thanks to the development of microfabrication technology, the microfluidic fuel cell utilizes the property of the fluid to form a stable parallel laminar flo...

AI Technical Summary

Problems solved by technology

Kamil et al. proposed a disc-shaped sequential-flow flow structure, but the cell assembly is complicated, and the fuel flow must be precisely controlled so that the fuel is completely oxidized when passing through the anode, and the unreacted fuel and the oxidant are not mixed and enter together. Cathode, therefore also failed to completely solve the problem of fuel permeation

Yoon et al. used the multi-inlet and multi-outlet channel structure to enhance the transfer of fuel to the electrode surface to increase the fuel concentration on the anode surface, but the cell structure and assembly are relatively complicated

Images