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
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[0040] Example 1
[0041] This embodiment uses MgNi hydrogen storage alloy, and its hydrogen storage capacity is calculated at 3%. 100 grams of MgNi hydrogen storage alloy can store 3 grams of hydrogen, which is equivalent to 33 liters of hydrogen under standard conditions, and can generate power 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 of the system is 50 / 0.3, which is 167WHr / kg.
[0042] Through the above-mentioned embodiment, the specific energy of the system is about 167 WHr / kg, and the specific energy of the lithium battery is usually 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 system does not need to be increased, and the specific energy can be further increased. For example, if the hydrogen storage material is...
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[0043] Example 2
[0044] This embodiment uses MgNi hydrogen storage alloy, and its hydrogen storage capacity is calculated at 3.5%. 100 grams of hydrogen storage material can store 3.5 grams of hydrogen, which is equivalent to 38.5 liters of hydrogen under standard conditions, 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 of the system is 58 / 0.3=193WHr / kg.
[0045] Through the above embodiments, the specific energy of the system is about 193 WHr / kg, while the specific energy of the lithium battery is usually below 120 WHr / 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 system does not need to be increased, and the specific energy can be further increased. For example, if the hydrogen storage material is increased to 200 grams, ...
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