Why camera batteries are not Lithium Polymer?

5 years 2 months ago #631185 by Marin Chi
So, our batteries in our cameras are Lithium Ion.  And this got me thinking, so I searched Google to see see which was safer and likelihood to catch on fire.  This didn't turn out any solid answers I was looking for.  

Lithium Polymer cost a tad more to make, so I thought that might be reason why they aren't used.   They hold a slightly higher punch and are smaller too, two big pluses for cameras, right?  Especially for flashes.  

So why not?  


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5 years 2 months ago #631186 by Marin Chi
Actually after posting, I found something that I don't understand and somewhat counterdicts other things I've read

"Also the the energy density of Li-Polymer battery compared to Li-Ion Batteries is quite less"

Other reports I read said Li-Polymer batteries had greater punch.  Unless "energy density" is something different, I'm completely lost now.  


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5 years 2 months ago #631276 by Nikon Shooter
Yes, electro-chemical compounds — and their littles secrets —
sometimes creating quite a confusion. Three important features
are to be understood: shelf life, recharging cycles and capacity.

The inner resistance — part of the shelf life feature — is the one
providing the "punch" you are referring to. The greatest punch
was delivered by the NiCad cells now illegal as they were dange-
rous for the extreme punch of up to 25A during a few seconds.

Light is free… capturing it is not!
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5 years 2 months ago #631337 by James L
Both battery times these days are safe.  Back in the day, there were rare cases where some Lithium batteries had overheated and caught on fire.  However these were redesigned, and now a days you don't much of of anything happening with batteries.   


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