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[OM] Re: new battery

Subject: [OM] Re: new battery
From: Tim Hughes <timhughes@xxxxxxxx>
Date: Wed, 7 May 2008 06:38:01 -0700 (PDT)
This is not really a new chemistry, but reformulated design (small particles 
etc) to try to
improve the very poor cycle life these batteries have demonstrated 
historically.  Z-power claims
~300cycles, which is still a fair bit less than that claimed by Li-ion. But 
practical cycle
performance in batteries usually falls far short of all these claims, 
especially in battery packs
in long strings versus single cells. You can improve cycle life by shallow 
cycling or charging to
lower voltage (and hence lower capacity) with Li-ion.   If the practical energy 
density really is
40% more, people may likely still pay a premium and accept the lower cycle 
life. 

Tim Hughes


--- John Hermanson <omtech1@xxxxxxxxxxx> wrote:

> 
> New type of battery being introduced for laptops.  Silver-zinc!
> 
> http://video.gearlive.com/video/article/q108-ces-2008-video-zpower-silver-zinc-batteries/
> 
> ___________________________________
> John Hermanson  |   CPS, Inc.
> 21 South Ln., Huntington NY 11743
> www.zuiko.com  |  omtech1 AT verizon.net
> Gallery: www.zuiko.com/album/index.html
> 
> 
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