Preparation method and application of binary electrolyte gel polymer electrolyte

Abstract

The invention discloses preparation method and application of a binary electrolyte gel polymer electrolyte. The preparation method comprises the following steps of 1, mixing and dissolving an electrolyte and distilled water to form a conductive solution; 2, adding an electrolyte used as a carrier into the conductive solution to form a binary electrolyte gel electrolyte; and 3, applying the prepared binary electrolyte gel polymer electrolyte into a fuel cell, and performing charge-discharge test to achieve a stable discharging potential curve. The binary electrolyte comprises the electrolyte and the electrolyte used as the carrier, wherein the electrolyte is one of anhydrous sodium sulfate, anhydrous sodium carbonate or anhydrous potassium carbonate, the electrolyte used as the carrier is sodium polyacrylate, and the binary electrolyte gel polymer electrolyte is applied to the fuel cell. According to the preparation method and application of the binary electrolyte gel polymer electrolyte, and the successfully-prepared binary electrolyte gel polymer electrolyte is applied to a hydrogen fuel cell and has the advantages of practicability, environmental-friendliness, safety, low cost and the like.

Description

technical field [0001] The invention relates to a method for preparing an electrolyte, in particular to a method for preparing a binary electrolyte gel polymer electrolyte and its application. Background technique [0002] A hydrogen fuel cell is a new type of device that directly converts the chemical energy of hydrogen and oxygen into electrical energy. Since the energy conversion is not limited by the Carnot cycle, and the additional products have no environmental pollution effect, which meets the development principle of opening up new energy sources and reducing environmental pollution in modern society, the research and application of hydrogen fuel cells have attracted much attention. Commonly used electrolytes for hydrogen fuel cells are phosphoric acid, mercury, NaOH, KOH, etc., and the working temperature is about 80-200°C. Pt, Au, Ag and other precious metals must be used as catalysts, which are expensive. The corrosion of the electrolyte is serious, the life is s...

AI Technical Summary

Problems solved by technology

[0005] The existing above-mentioned known documents have introduced the application of solid gel polymer electrolytes to fuel cells or lithium batteries, but there is no use of anhydrous sodium sulfate, anhydrous sodium carbonate or anhydrous potassium carbonate and sodium polyacrylate as raw materials to prepare gel polymer electrolytes. Gel polymer electrolyte and application in hydrogen fuel cells

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