FCL - FuelCell Energy Message Board

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Technology Stocks : FCL - FuelCell Energy

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To: Sid Turtlman who wrote (81)	12/9/1997 4:37:00 AM
From: Bill Jackson	Read Replies (1) of 407

Sid, The ERC battery is an offshoot of traditional rechargeable batteries. The lead acid is the best known, as it has a very high current capability(low internal resistance), the nickel cadmium is next and I suppose the nickel zinc is an offshoot of that. Is the cel voltage around 1.2 Volts?? The lower cell voltage will balance the lower density metals used, and so the energgy density will be similat to lead acid. If they have a CO2 filter they will be able to avoid the carbonate buildup that bothers alkaline electrolyte batteries that are not fully sealed. Have they been able to solve the dendritic growth problem??. Hybrids(diesel/Gas/Propane/etc +battery) are quite viable as long as the batteries have a long life(at least 5 years) of continuous use. If the batteries die fast they impose a huge recurring cost on the system. However at some point you want to breath clean air and so you mandate that cost to get the clean air. In 10-20 years they will finally get serious about this. The ultimate will be a fuel cell, if and when perfected, and at that point the electric vehicles made by ERC can be retrofitted with fuel cells, as the electric motors are expected to be very long lived(if kept dry) Bill

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