Fuel cell stack and stacking method thereof

Abstract

The invention provides a fuel cell stack and a stacking method thereof. The fuel cell stack comprises two end plates, at least one fuel cell monomer and a group of binding pieces. The fuel cell monomer is stacked between the two end plates, the binding pieces are arranged to be bound on outer sides of the two end plates along the stacking direction of the fuel cell monomer, and the binding piecesare arranged to apply a binding force to the end plates so that the fuel cell monomer can be ensured to be stacked between the two end plates.

Description

technical field [0001] The present invention relates to fuel cells, and more particularly, to a stacking method for a fuel cell stack. Background technique [0002] A fuel cell, such as a proton exchange membrane fuel cell, is a power generation device that directly converts the chemical energy in the fuel into electrical energy through an electrochemical reaction. However, the voltage and output power that a single fuel cell (or fuel cell unit) can provide is low. In practical applications, a plurality of fuel cells are generally stacked together to form a fuel cell stack capable of providing high voltage and high power. Accordingly, since the fuel cell stack is formed by stacking a plurality of fuel cell cells, the fuel cell cells all require good air tightness. Therefore, the assembly or assembly of the fuel cell stack has to be carefully designed to reduce its manufacturing cost and ensure stable quality of the fuel cell. [0003] Japanese Patent Application No. JP199...

AI Technical Summary

Problems solved by technology

This will inevitably lead to an increase in the volume of the fuel cell stack and an increase in the manufacturing cost of the fuel cell stack

In addition, since both the pole plate and the separator of the fuel cell stack are provided with at least two through holes, the processing and manufacturing difficulty of the pole plate of the fuel cell stack is also increased.

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