A bidirectional reversible fuel cell system

Abstract

The invention relates to a bidirectional reversible fuel cell system. The system comprises a reversible fuel cell module, a hydrogen storage module, an oxygen storage module, a water storage module and a power supply conversion module; the reversible fuel cell module comprises multiple single cells connected in series; and each single cell comprises a dual-flow-channel oxygen side electrode plate,a hydrogen side electrode plate and a membrane electrode assembly. Compared with the prior art, the dual-flow-channel oxygen side electrode plate adopts two rows of parallel flow channels and a fixeddirection micro-channel structure, so that water moisture separation in the pile can be realized; a gas diffusion layer adopts an electric exaction dynamic switching ordered pore channel structure, so that dynamic controllable water transport is realized; a catalyst, by taking an IrO<x> compound as the foundation, loads high oxygen reduction Pt on granular structured IrO<x> / SrIrO<3>, so that high-stability oxygen reduction-oxygen separating out double-effect catalysis is realized truly; and therefore, a power generation mode and an electrolysis mode can be both taken into consideration, controllable water transport in the pile is realized, and the reaction efficiency and stability of the reversible system are improved.

Description

technical field [0001] The invention belongs to the technical field of fuel cells and relates to a bidirectional reversible fuel cell system. Background technique [0002] The 21st century is the century of energy change and environmental protection. Traditional non-renewable resources such as oil, natural gas and coal, which are mainly fossil energy sources, are not only decreasing due to depletion, but also causing serious environmental pollution. Human beings are facing With the increasingly severe energy crisis and environmental pollution, there is an urgent need for an alternative energy source with high energy conversion efficiency and environmental friendliness. As a recognized renewable and clean energy, hydrogen energy is known as the most promising alternative energy in the 21st century, and its development and utilization technology has attracted worldwide attention. Among them, the fuel cell (Fuel Cell, FC), as a new type of energy device that directly converts ...

AI Technical Summary

Problems solved by technology

Although the system can discharge the primary battery and store electricity in the secondary battery, it does not consider the water management of the system and does not involve how the catalyst can efficiently achieve reversible reactions, so the system efficiency needs to be improved

International patent US9391339B2 (Chinese invention patent CN104285328A), international patent US9214694B2 (Chinese invention patent CN103210534A), Chinese invention patent CN105449250A, etc. have introduced the working principle of the renewable fuel cell disclosed respectively, but the research on the structure of the key components inside the system is relatively limited. less, and failed to solve key issues such as water management and two-way catalysis

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