Collector plate

Abstract

The present invention relates to the technical field of fuel cells, and particularly discloses a collector plate, the collector plate comprises a collector plate body, a first coating layer and a second coating layer, the first coating layer and the second coating layer respectively coat the outer surface of a first connection area and the outer surface of a second connection area of the collector plate body, the first coating layer is provided with a first cooling cavity, and the second coating layer is provided with a second cooling cavity. The first coating layer is provided with a first cooling cavity, the second coating layer is provided with a second cooling cavity, the first cooling cavity is communicated with the second cooling cavity through a flow channel, the first liquid inlet and outlet is communicated with the first cooling cavity, the second liquid inlet and outlet is communicated with the second cooling cavity, and cooling liquid enters the first cooling cavity through the first liquid inlet and outlet and then enters the second cooling cavity through the flow channel. Finally, the cooling liquid in the second cooling cavity flows into the second liquid inlet and outlet. The first cooling cavity and the second cooling cavity are respectively used for cooling the first connecting area and the second connecting area, and the reaction area is directly exposed in the air. The collector plate can take away heat generated by the collector plate in time, and thermal failure of the collector plate is prevented.

Description

technical field [0001] The invention relates to the technical field of fuel cells, in particular to a collector plate. Background technique [0002] As a new type of energy conversion device, fuel cell has rapidly attracted people's attention in related fields due to its advantages of high energy conversion rate, high reliability, high cleanliness, and no noise. A fuel cell consists of a membrane electrode, a bipolar plate, a collector plate and an end plate connecting several single cells in series. The collector plate is one of the important components of the fuel cell, which not only requires good conductivity and flexibility, but also requires It has excellent resistance to electrochemical corrosion. [0003] Patent application number 202010076638.9 discloses a plastic-coated collector plate and a fuel cell, which includes a collector plate body and a plastic-coated shell, the central area of ​​the collector plate body is set as a reaction zone, and the plastic-coated s...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a current collecting plate to solve the problem in the related art that after the current collecting plate is wrapped by the plastic casing, the heat dissipation of the current collecting plate will be prevented, and the thermal runaway of the current collecting plate will easily be caused.

Images