Electric field-membrane electrode fuel cell stack and intelligent balanced electric field management system thereof

Abstract

An electric field-membrane electrode fuel cell stack and an intelligent balanced electric field management system thereof. The electric field-membrane electrode fuel cell stack comprises a plurality of fuel cells with an electric field-membrane electrode combined structure; each fuel cell with the electric field-membrane electrode combined structure comprises a first electrode, a second electrode and electrolyte between the first electrode and the second electrode; at least one of the first electrode and the second electrode is provided with a grid electric field electrode membrane outside; the surface of the grid electrode membrane employs a teflon insulation film uniformly provided with a plurality of micro ventilation holes; and an interlayer of the teflon insulation film is provided with a conducive metallic membrane. The electric field-membrane electrode fuel cell stack provided by the invention has a simple structure, and can reduce activation loss, fuel penetration, internal short circuit current and ohmic loss; and the intelligent balanced field management system is simple and convenient, and can conduct network management control on an E-MEA fuel cell stack for power generation through the operation of a keyboard and a display, so as to improve working efficiency.

Description

technical field [0001] The invention relates to the field of fuel cell application technology, in particular to an electric field-membrane electrode fuel cell stack used at low temperature and an intelligent balanced electric field management isolated power supply system. Background technique [0002] The current fuel cell structure at home and abroad is a three-in-one component MEA (Membrane Electrode Assembly) composed of "anode-electrolyte-cathode". The type of electrolyte determines the operating temperature of the fuel cell, and the catalyst used on the electrode is to promote the electrochemical reaction rate of fuel and oxidant. Low temperature fuel cells can be roughly divided into: Alkaline Fuel Cell (AFC), Proton Exchange Membrane Fuel Cell (PEMFC), Methanol Fuel Cell (DMFC). [0003] Among them, the catalytic material of methanol fuel cell (DMFC) and proton exchange membrane fuel cell (PEMFC) cathode and anode is platinum. The current technology is to load very s...

AI Technical Summary

Problems solved by technology

However, due to the reduction in the amount of platinum used as a catalyst material for the cathode and anode, the power density of methanol fuel cells (DMFC) and proton exchange membrane fuel cells (PEMFC) is not stable during long-term operation, resulting in a gradual decline in power generation efficiency and shortened working life.

Images