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Regenerative fuel cell apparatus and system thereof

A fuel cell and oxygen electrode technology, which is applied in the field of regenerative fuel cell devices and regenerative fuel cell systems, can solve the problems of large volume and mass, high cost, etc., achieve high specific energy, long use and cycle life, and solve the problem of difficult storage Effect

Inactive Publication Date: 2012-04-25
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of portable energy storage battery cannot be charged as conveniently as a commonly used secondary battery, and requires a one-time-use hydrogen production chemical agent, which has a large volume and mass and high cost

Method used

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  • Regenerative fuel cell apparatus and system thereof
  • Regenerative fuel cell apparatus and system thereof
  • Regenerative fuel cell apparatus and system thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] This embodiment adopts MgNi hydrogen storage alloy, and its hydrogen storage capacity is calculated by 3%. 100 grams of MgNi hydrogen storage alloy can store 3 grams of hydrogen, which is equivalent to 33 liters of hydrogen in the standard state, and can generate electricity for 3000W minutes (50WHr). Considering that the fuel cell and auxiliary parts weigh 200 grams, the total weight is 300 grams. In this way, the specific energy converted into the system is 50 / 0.3, that is, 167WHr / kg.

[0042] Through the above-mentioned embodiment, the specific energy of the system is about 167 WHr / kg, while the specific energy of a lithium battery is generally below 120 WHr / kg, so the specific energy of the present invention is 39% higher. If only the weight of the MgNi hydrogen storage material is increased, the weight of the fuel cell and auxiliary systems does not need to be increased, and the specific energy can be further improved. For example, if the hydrogen storage material...

Embodiment 2

[0044] This embodiment adopts MgNi hydrogen storage alloy, and its hydrogen storage capacity is calculated according to 3.5%. 100 grams of hydrogen storage material can store 3.5 grams of hydrogen, which is equivalent to 38.5 liters of hydrogen in the standard state, and can generate electricity for 3500W minutes (58WHr). The fuel cell and auxiliary parts weigh 200 grams, and the total weight is 300 grams. In this way, the specific energy converted into the system is 58 / 0.3=193WHr / kg.

[0045] Through the above-mentioned embodiment, the specific energy of the system is about 193WHr / kg, while the specific energy of a lithium battery is generally below 120WHr / kg, so the specific energy of the present invention is 61% higher. If only the weight of the hydrogen storage material is increased, the weight of the fuel cell and auxiliary systems does not need to be increased, and the specific energy can be further improved. For example, if the hydrogen storage material is increased to...

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Abstract

The present invention relates to a regenerative fuel cell apparatus. The apparatus comprises a first insulating plate, an oxygen electrode current collecting plate, an oxygen electrode flow field plate, a membrane electrode, a hydrogen electrode current collecting plate, a hydrogen storage material chamber, and a second insulation plate, wherein the first insulating plate, the oxygen electrode current collecting plate, the oxygen electrode flow field plate, the membrane electrode, the hydrogen electrode current collecting plate, the hydrogen storage material chamber, and the second insulation plate are sequentially and tightly stacked and arranged. The regenerative fuel cell further comprises an air intake pipe and an air discharge pipe, wherein one end of the air intake pipe and one end of the air discharge pipe are communicated with the gas flowing channel of the oxygen electrode flow field plate, the other ends of the air intake pipe and the air discharge pipe are communicated with the outside air. The regenerative fuel cell apparatus further comprises a fan, wherein the fan is arranged toward the end of the air intake pipe, wherein the end of the air intake pipe is communicated with the outside air. The present invention further relates to a regenerative fuel cell system. According to the regenerative fuel cell apparatus and the regenerative fuel cell system of the present invention, the main body of the fuel cell and the hydrogen storage material form the integration, such that the problem of difficult hydrogen storage is solved, and the purposes of portability and compactness of the regenerative fuel cell energy storage are achieved.

Description

technical field [0001] The invention relates to a fuel cell device, in particular to a regenerative fuel cell device. The invention also relates to a regenerative fuel cell system. Background technique [0002] In recent years, with the rapid growth of the market for portable electronic products, the demand for high-performance power supplies with light weight and high capacity has also increased. In this way, the power supply must meet the following conditions: high capacity, small size, light weight, and rapid charging. At present, lithium-ion batteries are mostly used, but their safety, specific capacity, cycle life, and charging time need to be improved urgently. [0003] Regenerative Fuel Cell (RFC for short) is a new type of energy storage device that combines hydrogen-oxygen fuel cell technology with water electrolysis technology and uses hydrogen as an energy carrier. Its main functional part—the battery pack has two Two operating modes: water electrolysis (WE) mo...

Claims

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Application Information

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IPC IPC(8): H01M8/18H01M8/02H01M8/04H01M8/06
CPCY02E60/528Y02E60/50
Inventor 隋升曾亚平
Owner SHANGHAI JIAO TONG UNIV
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