Separator for direct liquid feeding fuel battery

Abstract

The invention discloses a separator for a direct liquid feeding fuel battery. The separator is characterized by comprising an outer shell and an inner shell, wherein the outer shell and the inner shell are formed by walls; a cavity is formed between the outer shell and the inner shell; the outer shell comprises a saturated vapor collection cavity and a gas-liquid separation cavity; the inner shellis arranged inside the gas-liquid separation cavity; air exhaust pore / holes are formed in wall surfaces of the inner shell; opening holes aligned to opening holes in the gas-liquid separation cavityare formed in the wall surfaces of the inner shell; the opening holes include a gas-liquid mixture inlet, a fuel mixed liquid outlet and a fuel inlet; an opening hole in a side wall of the saturated vapor collection cavity is connected with a recycling hole pipeline in a side wall of the gas-liquid separation cavity. The separator has the advantages that air / liquid water separation on a cathode side and CO2 gas / fuel mixed liquid separation on an anode side in a direct liquid supply fuel battery system are integrated, recycling and utilization of cathode water and mixing of an anode fuel inletsolution are also integrated into one separator, then a high system integration degree is achieved, and the size of the system can be reduced.

Description

technical field [0001] The invention belongs to the technical field of fuel cells, and in particular relates to a gas-liquid separator, which is used to collect the gas and liquid in the cathode and anode discharges of the stack in the same separation chamber, and to separate the liquid from the gas, and to separate the liquid mixture from the gas High-concentration fuels can be used as reaction fuels for stack anodes after proper mixing. Background technique [0002] A direct liquid fuel cell is an electrochemical reaction device that directly converts chemical energy in liquid fuels (such as methanol, ethanol, dimethyl ether, etc.) into electrical energy. Since the direct liquid fuel cell system avoids complex structures such as fuel reforming and purification, and the fuel is easy to store and carry, the system structure is relatively simple, and it has broad application prospects in the field of portable mobile power sources. [0003] Direct Methanol Fuel Cell (DMFC) is...

AI Technical Summary

Problems solved by technology

[0007] The above two existing technologies treat cathode and anode discharges separately, and their integration and gas-liquid separation efficiency need further research and improvement.

Images