High-performance carbon paper for fuel cell and preparation method and application thereof

Abstract

The invention discloses high-performance carbon paper for a fuel cell and a preparation method and application thereof. The method comprises the following steps: (1) adding fiber raw materials into water, stirring and mixing uniformly to obtain mixed slurry I; then sequentially adding a surfactant, polyoxyethylene and a polyvinyl alcohol solution into the mixed slurry I and stirring evenly to obtain mixed slurry II; then making the mixed slurry II into a wet paper web and drying to obtain a carbon paper precursor, wherein the fiber raw materials include viscose fiber, cellulose nanofiber and carbon fiber; and (2) dipping the carbon paper precursor into an ethanol solution of modified phenolic resin, drying, coating the carbon paper precursor with a hydrophobic coating, and performing hot pressing and heat treatment to obtain the high-performance carbon paper for the fuel cell. The carbon paper obtained by the method has better electrical conductivity and physical properties, and can beapplied to the field of fuel cells.

Description

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

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AI Technical Summary

Benefits of technology

This patented technology solves problems associated with current methods that require expensive equipment such as chemicals and complicated processes while also producing stronger products compared to pure fibers alone. It combines different types of starting substances together into one molecular structure called polymer solution (PMS) which makes it easier to produce strong carbon papers without requiring excessive amounts of other ingredients like sizing agents. Additionally, modifying certain parts of PSA results in improved electric conduction and mechanical properties making them more suitable for use in various applications where they are needed.

Problems solved by technology

Technological Problem addressed in this patented technical problem relates to improving the quality and effectiveness of producing highly functional materials from renewable resources such as biomass or coal while reducing environmental pollution caused by fossil fuels used during combustion processes. Current techniques involve expensive equipment like palladium/platinum alloy systems due to their poor durability under harsh conditions. To address this issue, there have been developed new technologies involving alternative sources of electric current generating elements called ion exchangers. These alternatives include polymeric membranous receptors made up of strong acid groups attached to metal particles on top of which tiny holes pass through. By combining different types of metals together, they can create various properties including better electron conduction capabilities, stronger hydrone repelling ability, improved heat transfer capacity, enhanced electronic activity, reduced oxygen release rates, stable mechanisms for use in batteries, and superior long term storage capacities compared to existing battery manufacturing methods.

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