New Sony Rechargeable Battery Has 4X The Lifespan Of Current Lithium Ion Batteries

[Coaster]

Just saw this article. These look promising for flashlights. Now to find a source...

http://www.sonyinsider.com/2009/08/...he-lifespan-of-current-lithium-ion-batteries/

:thumbsup:

 

[txg]

uninteresting, because 1,1Ah capacity is way too low...if you'll take a "standard" 2,5Ah 18650 and charge it up to 4.1v (or 90%), it will also have a lifespan in the range of 2000 cycles, but with the double capacity...

but thanks for the link! :)

 

[2dark]

uninteresting, because 1,1Ah capacity is way too low...if you'll take a "standard" 2,5Ah 18650 and charge it up to 4.1v (or 90%), it will also have a lifespan in the range of 2000 cycles, but with the double capacity...

but thanks for the link! :)

Hmm, that's true, but not many 18650s including IMRs can sustain a 20A continous discharge, and be fully charged in less than 30 minutes, and survive 2000 cycles whilst doing that. ;)

(Long term lurker/reader, but thought it was about time I made my first post!)
:wave:

 

[Fresh Light]

20A Max continuous discharge current, hmm

 

[chiphead]

Just great, now how do you charge the bloody things?

chiphead

 

[rmteo]

Get a charger for LiFePO4 cells - which is basically what they are. Similar to these (and others such as A123):

http://www.batteryspace.com/index.asp?PageAction=VIEWCATS&Category=1273

 

[rushnrockt]

It's interesting that that did not try to market them as Lithium Iron Phosphate batteries. I'd love to know their marketing spin on that.

 

[LEDAdd1ct]

I'm confused:

*aren't* they Lithium iron phosphate cells...?

 

[joeparker54]

The articles from various news sources have all made the "4X capacity" error. It makes you curious about who the original ill advised author was, and who copied his/her work without bothering to research for themselves... :crackup:I doubt more than 4 seperate news sources all misinterpreted the information on their own.
These batteries really are just a wannabe a123 cell. A123's 18650's have over 3000WH/kg power density allowing 30A max current, compared to 1800WH/kg and 20A max current for the Sony cells, AND the same 1100mAH capacity...and they've been out for at least a year.
Just my 4 cents.

 

[Julian Holtz]

Nothing new here.
They have the same specs as the A123 1100mAh 18650 cells.
http://battlepack.com/LiFEPO4s.asp
http://battlepack.com/APR18650M1_2007-05.pdf
And I am using these since late 2007 in my RC planes.
99% charge in 30min is just boring.
I charge mine to 100% in 15min, and I am not even pushing.

Sounds like someone reinvented the wheel here.

 

[rushnrockt]

I charge mine to 100% in 15min, and I am not even pushing.

Sounds like someone reinvented the wheel here.

100% in 15 minutes? You sure that it's not 99.5%? Sounds like Sony's press release full of hyperbole is rubbing off ;)

I am pretty sure that more products of this kind is a good thing for the market, not a bad thing, even if they are similar. Sony could have an easier type pushing these products into mainstream than other companies too.

 

[lolzertank]

These are just LiFePO4 cells, nothing too new. I don't think these will have much use in flashlight applications other than incan hotwires/other fun lights (Databank 70 type) thanks to their terrible capacity.

 

[Lightcrazycanuck]

New batteries from Sony

Check it out,what do you think?
Sony says the batteries will reach 99% charge in only 30 minutes and then four times the lifespan of other batteries on the market.


http://www.nordichardware.com/news,9792.tml

http://www.sony.net/SonyInfo/News/Press/200908/09-083E/index.html


:popcorn:

 

[SilentK]

Re: New batteries from Sony

20 amp discharge rate!?! Its a super IMR 18650!

 

[jar3ds]

Re: New batteries from Sony

1.1ah ... bleeeeh

 

[Lightcrazycanuck]

Re: New batteries from Sony

Yep 20amp discharge rate is quite something.

 

[Lightcrazycanuck]

Re: New batteries from Sony

1.1ah ... bleeeeh

What is that in milli amps???

 

[Mjolnir]

Re: New batteries from Sony

It says that they are LiPo4 cells, so the high load kind of makes sense. However, the capacity is pretty low...

 

[Black Rose]

Re: New batteries from Sony

There is already a thread on these.

http://www.candlepowerforums.com/vb/showthread.php?t=239080

 

[Lightcrazycanuck]

Re: New batteries from Sony

Opps,

My Bad.:(:(

Please close this thread.