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Max The Magnificent
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I hate to rain on your parade, but...
Max The Magnificent   8/7/2014 4:47:08 PM
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@Ivan: Did you see this article about researchers promoting battery-free Wi-Fi technology?

eetcowie
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Re: I hate to rain on your parade, but...backscatter
eetcowie   8/8/2014 2:17:47 PM
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Max,

I was doing backscatter communications when I worked at Time Domain. The available power is quite limited (in contrast to the author's statement), and obviously depends on the size of the antenna. It doesn't take much energy to short-out and open an antenna, to provide the reflection, and this is what I believe they were trying to say. The strength of the reflecting signal depends on: antenna size (gain), distance, path loss (other scatter sources and blocking materials), and noise (jammers, etc). By the way, backscatter comms works with other radio signals that are available, as well.

antedeluvian
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Availability
antedeluvian   8/8/2014 9:08:23 AM
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Hi Ivan

Let's say I thought one of the exotic battery chemistries that you cover in this series was suitable for my application. How would I go about obtaining one (or in the case of a primary battery an ongoing supply)? Do you make it yourself or are some battery manufacturers happy to put together one for you?

eetcowie
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Re: Availability
eetcowie   8/8/2014 2:06:00 PM
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antedeluvian :  How would I go about obtaining one...


Sometimes I have to resort to a Google search using the chemistry as keyword, to reveal the as-yet unknown supplier. Too often, I don't even have a part number, and so this helps with that too. Additionally, There are companies out there that can make a pack out of cells that you supply, or they buy for you and include in the pack cost.

prabhakar_deosthali
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A rich knowledge source on battery technologies
prabhakar_deosthali   8/11/2014 3:31:11 AM
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HI Ivan,

 

I have gone through most of your 10 part series on Battery technologies.

It would be nice to have all this content converted into a book.

Do you have any such plans?

eetcowie
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Re: A rich knowledge source on battery technologies
eetcowie   8/11/2014 3:12:14 PM
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prabhakar_deosthali : 

'...It would be nice to have all this content converted into a book.
Do you have any such plans?'


Many have asked me about writing a book, and I am still considering it. I'll make a final choice after I finish posting everything.

Thanks for your support.

--Ivan



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