Interesting article in ECN about lithium-ion batteries

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#1 Post by **rkawakami** » Mon Apr 23, 2007 2:20 pm

An article in this month's Electronic Component News (ECN) magazine about lithium-ion batteries is interesting (at least to me). Probably somewhat on the technical side, but it gives a little insight about the use of Li-Ion cells and how the electronics inside the pack are supposed to work.

Be sure to check out the sidebar article, Charge Batteries with Care.

edit: Changed main story link to archived URL

#2 Post by **RealBlackStuff** » Mon Apr 23, 2007 2:32 pm

Unfortunately both links throw up errors in Firefox and IE:

An Error Occurred

There was a problem opening http://www.ecnmag.com/article.aspx?id=4 ... menuid=584
Whatever you were trying to do, it didn't work out the way you expected.
You could go back and try again, or perhaps return to the Home Page.

[Detailed Imformation]
Error Date and Time: 4/23/2007 3:31:46 PM

Error Message: Conversion from string "03-30-2007 17:22:32" to type 'Date' is not valid.[EkDataRW][GetLibraryItemByIDv4_5][EkLibrary->GetLibraryItemByIdv4_5]

Error Source: Ektron.Cms.Common

Stack Trace:
at Ektron.Cms.EkException.ThrowException(Exception ex, EventLogEntryType EventType)
at Ektron.Cms.EkException.ThrowException(Exception ex)
at Ektron.Cms.Content.EkContent.GetMenuByID(Object MenuId, Object PreviewMode, Boolean Recursive)
at ABM.Common.MainMenu..ctor(Int32 id)
at UserControls.Menu.Page_Load(Object sender, EventArgs e)
at System.Web.UI.Control.OnLoad(EventArgs e)
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

Going to www.ecnmag.com gives the same error.

#3 Post by **ryengineer** » Mon Apr 23, 2007 3:19 pm

Well, I am able to access the links perfectly.

Thanks for such an interesting article, Ray.

#4 Post by **rkawakami** » Mon Apr 23, 2007 4:37 pm

RealBlackStuff wrote:Unfortunately both links throw up errors in Firefox and IE:

I did get the same errors when I first tried to access the sidebar stories. After a couple of minutes I tried again and got connected. Probably a problem with ECN server. Give it a try again.

#5 Post by **GomJabbar** » Mon Apr 23, 2007 5:20 pm

Thanks for the article Ray. It's the best one I have read on the subject. I found the following especially intriguing.

Ecnmag.com wrote:<snip> Smart batteries can provide warranty and pack-abuse information, too.

The TI chip (and others) incorporates a security feature that employs the Secure Hash Algorithm (SHA-1) that ensures the authenticity of an attached battery pack. According to Tichy, after-market lithium-ion batteries cause the biggest problem in the industry. So, assemblers may put a security function in their packs so users can determine they have an authentic rather than a counterfeit pack in their equipment.

The second link you posted led me to the wrong page. I found the link for "Charge Batteries with Care" at: http://www.ecnmag.com/article.aspx?id=139903

#6 Post by **RealBlackStuff** » Mon Apr 23, 2007 5:52 pm

Gotcha third time around.
Thanks Ray, for that interesting find.

#7 Post by **BillMorrow** » Wed Apr 25, 2007 2:16 am

interesting read..

Interesting article in ECN about lithium-ion batteries

Interesting article in ECN about lithium-ion batteries

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