CleanTechnica is the #1 cleantech-focused
website
 in the world.


Biofuels Viaspace dmfcc_product

Published on March 30th, 2012 | by Glenn Meyers

4

Direct Methanol Fuel Cells Are a Proven Alternative to Batteries



For those interested in alternative fuels that are renewable, Direct Methanol Fuel Cells (DMFCs) are worth investigation. These alternative energy devices – invented at the Caltech/NASA Jet Propulsion Laboratory with the University of Southern California (USC) – can be used to power a wide range of portable and mobile electronics.

Here is the green beauty of these electrochemical devices: They are capable of converting high energy density fuel (liquid methanol) directly to electricity, reports Direct Methanol Fuel Cell Corporation, a subsidiary of Viaspace, which develops disposable methanol fuel cartridges that provide the energy source for fuel cell powered notebook computers, mobile phones, military equipment and other applications being developed by electronics OEMs, such as Samsung and Toshiba.

They operate silently, at relatively low temperatures and offer much longer operating time than today’s batteries. Better than a battery, DMFCs don’t need to be recharged. They can provide electricity continuously to the consumer electronic devices as long as oxygen and fuel are supplied to the fuel cell. To achieve this, DMFCs can be “hot-swapped” and instantly recharged with replacement methanol cartridges (akin to batteries).

Methanol or a methanol/water solution is the industry’s choice of fuel. Because it is a liquid, it is easy to store and transport. Methanol is inexpensive and readily available.

Viaspace provides this detail on how the fuels cell works:

How does a DMFC Work?

The heart of a fuel cell consists of catalysts for the electrochemical reaction and a special piece of plastic that can conduct protons. The technical term for this special plastic is polymer electrolyte membrane (PEM) and the most common PEM used in DMFCs today is NafionTM, produced by Dupont. The most common catalysts used are PtRu alloy for the anode and Pt for the cathode.

In the fuel cell, the fuel is not burned, but rather is converted into electricity through an electrochemical process that splits methanol into protons, electrons, and carbon dioxide at the anode and then combines these protons and electrons with oxygen at the cathode to produce water. It is a very simple concept.

As I have reported before, methanol is an alternative renewable fuel that should be embraced with open arms – from both a cost and climate standpoint.

Photo: Viaspace

Print Friendly

Tags: , , , , , , , , , , , ,


About the Author

is a writer, producer, and director. Meyers is editor and site director of Green Building Elements, a contributor to CleanTechnica, and founder of Green Streets MediaTrain, a communications connection and eLearning hub. As an independent producer, he's been involved in the development, production and distribution of television and distance learning programs for both the education industry and corporate sector. He also is an avid gardener and loves sustainable innovation.



  • Pingback: Direct Methanol Fuel Cells Are a Proven Alternative to Batteries | OzHouse Alt News

  • Bob_Wallace

    Cutting to the chase:

    How much do the fuel cells cost?

    How many hours use do you get from the fuel cell?

    Could work and affordable – two different things….

  • http://pulse.yahoo.com/_P5BS5ZE6HPMN2SE2RPOFUU3SQQ Jeff

    “New fuel cell sewage gas station in Orange County, Ca. may be world’s first”
    http://abclocal.go.com/kabc/story?section=news/local/orange_county&id=8310315

    Impressive! I like the Honda FCV (fuel cell vehicle) driving away at the end of the video… Looks ready to me.

  • Captivation

    This would offer great bridge technology while we wait for batteries to improve. Imagine a hybrid battery/methanol vehicle. At time of purchase it only comes with a 5 kilowatt hour battery. But over time you constantly add more and more battery capacity. And the methanol is always a backup plan in case you run out.

    This would truly be the ultimate hybrid and since both fuel sources create electricity, there is no need for the redundancy of two engine types.

Back to Top ↑