VALENCE TECHNOLOGY (VLNC) Message Board

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Technology Stocks : VALENCE TECHNOLOGY (VLNC)

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To: Gordon Quickstad who wrote (232)	4/19/1997 1:26:00 PM
From: FMK	of 27311

Gordon, I like this summary from the Oct 23, 1996 Investors Business Daily: "Lithium polymer is a cousin of the Lithium ion now commonly used in notebooks. By adding polymer to the mix, manufacturers are able to mold the batteries into a number of different shapes." As I understand it, "lithium polymer" is an abbreviated way of saying "lithium-ion polymer" because the lithium must be in ionic form regardless to function as part of the electrolyte. Remember that this newer technology differs from the earlier attempts to use lithium metal as anodes. The current anodes are carbon. When speaking with a Valence engineer a few months ago, I learned that the cathode material for the lower-cost cells is described as "lithiated manganese dioxide". Lithium polymer cells are "lighter" because they have shed the weight of the metal containers and are themselves mostly electrolyte. It appears that the liquid lithium ion and the solid lithium(ion) polymer hold about the same energy per volume if other cell characteristics, such as the cathode materials, are the same. Regards, FMK

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