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Technology Stocks : Ballard Power -world leader zero-emission PEM fuel cells
BLDP 2.905+4.5%Dec 11 3:59 PM EST
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To: Sid Turtlman who wrote (3025)8/24/1998 3:18:00 PM
From: speculatingvalue  Read Replies (1) of 5827
 
re: GLE-ASE www.globalte.com

Here's an excerpt from their site:

"There are several different types of fuel cells that are being investigated today. The proton exchange membrane ("PEM") cell operates at a low temperature (around 80 degrees C) and uses a specialized plastic membrane as an electrolyte. This type of cell requires pure hydrogen as fuel. The hydrogen may be supplied directly from tanks, or it may be produced from other indirect sources such as natural gas or propane by passing the fuel through an external device known as a reformer. Reformers are generally bulky and expensive. The PEM cell has very little tolerance for contaminants such as carbon monoxide or sulphur compounds.

Global Thermoelectric is developing a solid oxide fuel cell ("SOFC"). This type of cell operates at a temperature of more than 800 degrees C. The anode, cathode and electrolyte are made from ceramic materials to withstand the heat. The SOFC does not need an external reformer to make hydrogen. Instead, due to the high operating temperature, hydrogen is produced directly inside the cell using a catalytic process to break the fuel down."
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