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eVionyx's zinc fuel cell car

eVionyx's zinc fuel cell car

Magnesium can also be used as a fuel for fuel cells.
A lot of laboratories are developing a metal-air battery, such as zinc, aluminium, iron, lithium and magnesium. It is a battery which uses oxidizing properties between metal and oxygen. An ordinary battery needs cathode active and anode active. On the other hand, cathode active of the metal-air battery is oxygen. If metal as anode active can be exchangeable, the metal-air battery becomes a fuel cell.
A passenger fuel cell vehicle requires 6kg of hydrogen in order to run 500km, and the same quantity of energy is produced from about 70kg of magnesium. When it is put in practical use, it is thought that a pack of magnesium cassette will be installed in the power generation compartment of fuel cells. You would replace fuel packs just like you fill up the gas tank of you car with gasoline at a gas station now.
In 2003, a research-oriented venture company for metal fuel cells, eVionyx (Hawthorne, New York State), has developed an experimental car by converting a regular passenger car, and has achieved a continuous run of 600km without replacing its fuel cells. They have also proved that there was no problem in running the vehicle by replacing its fuel cells for over 100 times.
Based on this experimental data, the efficiency of a zinc fuel cell is 500 Watt-Hour per 1kg. If you apply this experimental data to magnesium, the efficiency of a magnesium fuel cell would be 1500 Watt-hour for 1kg of magnesium, which far exceeds that of a lithium ion battery (200Wh).

3 Comments to “Magnesium fuel cell”

  1. [...] ・マグネシウム燃料電池 ・マグネシウムは火力発電所の燃料として使える ・マグネシウム製造には大量のエネルギーが必要 ・低コストで超高温を実現する「太陽光励起レーザー」 ・ [...]

  2. Rey Aricci says:

    A passenger fuel cell vehicle requires 6kg of hydrogen in order to run 500km, and this quantity of hydrogen is produced from about 70kg of magnesium.

    普通車の水素燃料電池車が500km走るためには水素6kgが必要とされますが、同じことをマグネシウム燃料電池車で実現するには70kgのマグネシウムがあればよいことになります。

    この日本文の英訳が、上記なら、明らかに誤訳。6Kgの水素をどうやって70Kgのマグネシウムから作るのだろう。

  3. staff says:

    ご指摘ありがとうございました。上記の件、修正いたしました。

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