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Fuel cell system and low-temperature starting method thereof

A fuel cell system and fuel cell technology, which are applied in the fields of fuel cells, fuel cell additives, fuel cell control, etc., can solve the problems of existing structure damage of the stack and other problems

Active Publication Date: 2019-06-18
TSINGHUA UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Based on this, it is necessary to provide a fuel cell system and its low-temperature start-up method for the problem that the heating of the fuel cell through an external circuit requires modification of the bipolar plate of the fuel cell, which is easy to cause damage to the existing structure of the stack

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  • Fuel cell system and low-temperature starting method thereof
  • Fuel cell system and low-temperature starting method thereof
  • Fuel cell system and low-temperature starting method thereof

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Embodiment Construction

[0071] In order to make the purpose, technical solution and advantages of the present application clearer, the fuel cell system and its low-temperature start-up method of the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0072] A fuel cell is an energy conversion device, which isothermally converts the chemical energy stored in fuel and oxidant directly into electrical energy according to the electrochemical principle, that is, the working principle of the primary battery. Therefore, the actual process of fuel cell discharge is the process of redox reaction. Fuel cells are mainly composed of four parts, namely anode, cathode, electrolyte and external circuit. Fuel gas (generally hydrogen can be selected) and oxidation gas (generally air can...

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Abstract

The application relates to a fuel cell system and a low-temperature starting method thereof. A fuel cell is provided with a heating unit so that the temperature of a fuel cell pile can be increased ina low-temperature environment, and warm start of the fuel cell is facilitated. The fuel cell system is provided with the heating unit, the improvement of the original structure of the fuel cell is small, and the structural design of the fuel cell pile is not influenced.

Description

technical field [0001] The present application relates to the technical field of fuel cells, in particular to a fuel cell system and a low-temperature start-up method thereof. Background technique [0002] At present, global oil resources are becoming increasingly depleted, and environmental problems such as the greenhouse effect are becoming more and more severe. Compared with traditional internal combustion engines, electric motors and other power sources, fuel cells have great advantages in power density and environmental friendliness. A fuel cell is an electrochemical device that converts chemical energy directly into electrical energy. Since the energy conversion process of the fuel cell is not limited by the Carnot cycle, its energy conversion efficiency is relatively high. During the working process of the fuel cell, the fuel consumed is hydrogen, the reaction product is water, and the harmful emissions are zero, so it is one of the cleanest energy sources. [0003...

Claims

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Application Information

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IPC IPC(8): H01M8/04007H01M8/04298H01M8/04302H01M8/0432
CPCY02E60/50
Inventor 李建秋江宏亮徐梁飞欧阳明高
Owner TSINGHUA UNIV
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