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Technology Stocks : VALENCE TECHNOLOGY (VLNC)
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To: Matthew Leo who wrote (230)4/18/1997 2:28:00 PM
From: Gordon Quickstad   of 27311
 
Matthew;

The confusion is over terminology.

The Ultralife employee is calling the original Valence metallic lithium battery by the name of lithium polymer and is calling the newer design, which both companies license from Bellcor, lithium ion.
Valence still calls it lithium polymer. Well, both companies batteries use polymer electrolyte and don't use liquid electrolyte and that is uniquely new in the battery market. The rechargable lithium batteries being shipped today use liquid (moist) electrolyte and they are also called lithium ion. There's the confusion. Two distinct construction methods and he's giving both the same name. His company has chosen to call their battery Solid State System. I think their web site refers to it as lithium polymer, though, too.

The specifications seem to be similar between polymer electrolyte and liquid electrolyte. Similar voltage, recharge number, energy density, etc. The polymer seems to be lighter and safer. The lightness may give it an advantage in energy density, but not whopping. The liquid electrolytes can travel to an abnormal reaction site and create gas and heat and therefore probably aren't as safe.

Valence has a sizable patent portfolio, but I don't know what percentage applies to their original design. I remember reading about their work with coatings and they may have good advantages here. They are contracted to supply coatings in some or all of their alliances.

Gordon
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