Monday, February 4, 2013

Current Kohama MgFC

"Current Kohama MgFC" in "Magnesium fuel cell, its anode made of flame-retardant Mg alloy" has been rewritten as below.  ****************************

Kohama MgFCのspecs (as of latter of May 2012):
Rated capacity: 60Ah
Rated voltage: 1.5V/cell
Cell size: 42 x 225x 15 mm
Mass: 470 g/cell
Mass energy density: 200Wh/g
For its details, reference is made to pdf file, 7 to14 pages.
the use of the permanent power source, performance test examples, applications of MgFC, and others. Prof. Kohama says the basic performances of the MgFC have already been secured. In this connection, reference is made to “Kohama MgFC technology (技術)” in this article.

The prototype of the MgFC successfully charged 120 mobile phones at 360 W as its output. In use, the salt water (electrolytic solution) is set to the FC body. The MgFC is normally operable at its rated output power even after it is left for several tens years in a state that the solution is not set to the FC body. The Mg FC was designed for emergency use at medical facilities, communication stations, homes, etc. Its application covers power sources for automobiles, as a matter of course. Pro. Kohama has a schedule to really commercialize the Mg FC within one year. There will be somewhat less time lag from the target position in time.
An advanced MgFC (4 kWh) was tested in the early of December 2012.  The MgFC, which was combined with a L-ion battery, was used for powering a trike.  The trike succeeded in running a distance of 100 km on the public road.  A schematic circuit for powering the trike will resemble the circuit diagram illustrated on page 11 of a pdf file.
It is recently revealed that the MgFC succeeds in continuously feeding current for 10 hours.
The price of the MgFC will be significantly low. Prof. Kohama says that the price of the MgFC will be almost half of that of the lead-acid battery currently and widely used by the automobile.
Prof. Kohama has long developed the next generation transportation system, named as AeroTrain. For his specialities, please refer to a list of academic papers.  A flame-retardant magnesium alloy is used for the body of the train. He accidentally found the fact that the flame-retardant magnesium alloy exhibits an excellent corrosion resistance against seawater.  Prof. Kohama says that the discovery triggered him to think of application of the flame-retardant magnesium alloy to the MgFC. An MgFC was manufactured: negative electrode = flame-retardant magnesium alloy, positive electrode = air (oxygen), and electrolytic solution = 18 wt% salt water.  Unexpected good results were produced: 1.5 V & 60 Ah/cell.  Found a surprising fact: The magnesium can store electric energy.  It is a common that the electricity storage is impossible.  This common opinion is completely denied.
Prof. Kohama has long developed the next generation transportation system, named as AeroTrain (see related article on my site).  The development is based on environment friendliness.  To this end, the basic necessity is to reduce the weight of the train as possible and the energy to power the train.  He constantly seeks an appropriate train-powering energy source.  It seems that he always bears the renewable energy in mind.  He also is constantly thinking of the solar energy based process to smelt magnesium, to acquire the magnesium.  In this circumstance, he met the MgFC accidentally. 

Magnesium is smelted using a solar energy.  The solar energy is stored through the smelting process. The magnesium storing the solar energy is transported to places needing the magnesium.  In those places, the magnesium is used as an industrial material or converted into electrical energy.  The used magnesium is smelted or reduced and is used again.  Note that the almost limitlessly magnesium resource is recyclable. 
Prof. Kohama advocates this recycling process and moves ahead with it as “Soleil project”.  The project will be described in detail in another article. 

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