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Technology Stocks : Energy Conversion Devices
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To: Tom Hoff who wrote (3734)6/11/1999 7:12:00 AM
From: Sid Turtlman  Read Replies (1) of 8393
 
Tom and Fred: It remains to be seen whether NiZn will be any better than NiMH - I guess it depends on which of the dozens of ways of comparing batteries one is talking about. And since all the NiZn batteries to date have been made more or less by hand, we don't know yet what the actual performance will be of NiZn batteries coming off the EVRC assembly line in Xiamen.

But one thing where I think NiZn ought to have a big edge over NiMH is in cost. They both use nickel, but zinc raw materials are a whole lot cheaper than the various metal hydride formulations. Given that, in mass production, raw material costs ought to be maybe 70% of total costs, that could give NiZn a big edge, assuming that the performance is similar. OTOH, if NiMH can achieve the 120 Wh/Kg and other performance targets that ENER has for it, it should be able to command a premium price.

I think we will know a lot more later this year when the EVRC plant should be turning out a standard product.
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