Liquid cooling superposition cell assembly and hydrogen fuel cell stack

Abstract

The invention belongs to the technical field of hydrogen fuel cells, and particularly relates to a liquid-cooled stacked cell assembly and a hydrogen fuel cell stack, and the liquid-cooled stacked cell assembly comprises single cells and a cooling area used for feeding and discharging cooling liquid which are sequentially connected in series and stacked; the liquid-cooled stacked battery assembly is divided into a rapid cooling area A close to a liquid-cooled source and a slow cooling area B far away from the liquid-cooled source; a cooling area is arranged in the rapid cooling area A at an interval of two single batteries; and a cooling area is arranged in the slow cooling area B every other single battery. The hydrogen fuel cell stack comprises an outer shell, the outer shell is hollow and is provided with openings at two ends, the liquid cooling superposed cell assembly is arranged in the outer shell, and the openings at the two ends of the outer shell are closed. The fuel cell disclosed by the invention belongs to a metal plate liquid-cooled galvanic pile, and has the advantages of simple structure, easiness in assembly, high power generation efficiency, small volume, high power density, single cell consistency and the like.

Description

technical field [0001] The invention relates to the technical field of hydrogen fuel cells, in particular to a liquid-cooled stacked battery assembly and a hydrogen fuel cell stack. Background technique [0002] A hydrogen fuel cell is a power generation device that uses hydrogen as fuel to directly convert the chemical energy in the fuel into electrical energy through an electrochemical reaction. It has the advantages of high energy conversion efficiency, zero emissions, and no noise. Actively developing hydrogen energy is an important measure for energy innovation and development to achieve carbon peaking and carbon neutrality. [0003] The stack is composed of multiple single cells stacked together. The stack is the place where the electrochemical reaction occurs, and is the core part of the fuel cell power system. When the stack is working, hydrogen and oxygen are respectively introduced from the inlet, distributed to the bipolar plates of each single cell through the ...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a liquid-cooled superimposed battery assembly and a hydrogen fuel cell stack to solve the problem of uneven heat dissipation of the single cells of the existing stack proposed in the above-mentioned background technology, which may easily cause some single cells to overheat, and the battery The problem of inconvenient installation of the heap combination

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