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Technology Stocks : VALENCE TECHNOLOGY (VLNC) -- Ignore unavailable to you. Want to Upgrade?

To: Tmoore who wrote (4463)	10/19/1998 6:41:00 PM
From: steve	Read Replies (2) \| Respond to of 27311

Sorry about that. The link you posted was to the opening page and not to the story itself. I just wanted to check if that story was the one you referenced. Any comments about the density comparison remark from this excerpt? I had the impression from comments on this board that that there was a significant difference. Also keep in mind, I have no competence in the chemistries or physics. So please, in laymen terms if you will... I'm only trying to make a buck:) steve <<excerpt>>Lithium-Polymer Can Make Batteries Thinner Other market needs exist for thinner lithium-ion batteries. Rectangular cases for batteries are more suitable than round cases, to realize a thinner lithium-ion battery. Sanyo, for example, plans to start marketing a new rectangular-shaped battery with a thickness of 5.3mm this autumn. However, there is a limit to reducing the thickness. Sanyo said it is difficult to make such batteries less than 5mm with current manufacturing methods. Battery makers are focusing on development of lithium-polymer secondary batteries. The thickness of a lithium-polymer secondary battery can be less than 1mm, because its solid or gel-formed electrolyte solution is sandwiched between positive and negative electrodes that are made of film. But, their energy densities remain almost the same as those of lithium-ion secondary batteries or a little less, because the electrode materials are nearly the same as those used for lithium-ion batteries.

To: Tmoore who wrote (4463)	10/19/1998 6:41:00 PM
From: jean1057	Respond to of 27311

reading the article...is quite encouraging for VLNC...compare some comments of Sanyo: Other market needs exist for thinner lithium-ion batteries. Rectangular cases for batteries are more suitable than round cases, to realize a thinner lithium-ion battery. Sanyo, for example, plans to start marketing a new rectangular-shaped battery with a thickness of 5.3mm this autumn. However, there is a limit to reducing the thickness. Sanyo said it is difficult to make such batteries less than 5mm with current manufacturing methods. >>>>>>>>>>>>>> According to VLNC Spec sheet....our battery is already 4.45 mm thick.. and Sanyo still has a problem with thickness...well looks like we have a pretty good battery eh.... about Moltech is interesting as well...Moltech's technology is in the field of Lithium metal according to the article..: comment of Sony: The fires were due to the reactive nature of lithium-metal. Repeated charging and discharge operations turns lithium into dendrites, which break a separator that insulates positive and negative electrodes, and cause short circuits between the electrodes. This is a basic problem that cannot be solved in a short time, said Yoshio Nishi, a Sony Corp. corporate vice president and research fellow (battery R&D). Producers are still concentrating on lithium-metal batteries. For example, Moltech Corp. of the United States is conducting manufacturing tests on lithium-polymer secondary batteries using lithium-metal electrodes...... not sleepless nights at the moment concerning Moltech...IMHO... regards j.c.