Lithium ion battery below 1.5V

[alansimpson]

I am doing some R&D work and I need to source some rechargeable batteries with a fast response time for pulsed output current. About 1 amp.
Lithium ion seem to be best for our application however they seem to be available at 3V and over.
Must be less than 1.5V and over 1000 mAh. Cant use extra electronics to adapt 3V batteries.

Also looking into caps.

Can anyone help me source Lithium ion rechargeable below 1.5V.

Thanks in advance

 

[lumenharold]

We have worked with Harding Energy in the past with good results. Not sure what they can offer but it might be worth contacting them:

http://www.hardingenergy.com/

Harold
SW2009 SP4.0 OPW2009 SP2 Win XP Pro 2002 SP3
Dell 690, Xeon 5160 @3.00GHz, 3.25GB RAM
nVidia Quadro FX4600

http://www.lumenflow.com

 

[MacGyverS2000]

Alan,

Without outside electronics, I don't think Li-Ion is the proper chemistry. The cathode voltage alone is double your 1.5V limit, so you're probably barking up the wrong tree.

Dan - Owner

http://www.Hi-TecDesigns.com

 

[VEBill]

Ugly old horrible Ni-cad has very high current capabilities and is nominally about 1.25 volts (1.4 is full charge).

 

[itsmoked]

Yes, forget LiIon.

If you have control over when the pulsing happens use any junker battery and a capacitor to support the pulse.

Keith Cress
kcress -

http://www.flaminsystems.com

 

[IRstuff]

Just how fast? NiMH batteries tend to be be under 1.5V; in fact, it's usually quite annoying because some electronics will tag them as undercharged almost immediately upon use.

The standard NiMH AA battery is rated at 2400 mAh, but you could get that, or a D, and supplement with a capacitor as itsmoked suggests.

TTFN

FAQ731-376