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Breakthrough
in Low Temperature operation of 2½nd Generation High Current Rechargeable Lithium Batteries |
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New battery chemistry extends the practical low temperature
discharge range to -40°C |
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For more battery resources from PowerStream click
here:
Custom design and manufacture of state-of-the-art battery chargers, UPS, and power supplies for
OEMs in a hurry!
We are taking orders for these cells in the same sizes as those listed
here:
Large lithium ion batteries and
cells
Although lithium ion batteries cannot be charged at cold temperatures they will not freeze at temperatures down
to -40°C and can be discharged that low. The following curve is a test of our new low-temperature battery chemistry showing
significant performance at -40°C
The average voltage during the discharge is 3.4 volts, giving an energy capacity of
this cell at -40°C of 59 watt-hours (212,000 joules).
Test conditions:
20 AH cell
(nominal)
Charged at 20°C and 20 Amps to 4.2 volts, then held at 4.2 volts until the charge current drops to 0.5
Amps
Put into the cold chamber at -40°C and soaked for 2 hours
Discharged at a current of 1.5 amps (C/13), down to a
termination voltage of 2.75 volts.
Results:
Measured capacity of 17.3 AH at -40°C
Measured capacity of 20.9 AH
at +20°C
Low temperature capacity efficiency at -40°C is 82.7% compared to room temperature.
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Model |
Capacity |
Voltage |
Dimension(mm) |
Impedance |
Weight |
Remarks
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| High capacity Lithium Ion Cells for low temperature operation |
(Ah) |
(V) |
Dimension without terminals, click on
link to see sketch |
(mOhms)
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(g) |
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| PGB206970-LT |
6 AH |
3.7V |
20mm x 69 mm x 73 mm
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15 mohms |
240g |
Single cell |
| PGB207090-LT |
8 AH |
3.7V |
21mm x 70mm x 93 mm
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10 mohms |
300g |
Single cell |
| PGB268090-LT |
12 AH |
3.7V |
26mm x 80mm x 95mm
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8 mohms |
470g |
Single cell |
| PGB2680110-LT |
15 AH |
3.7V |
26mm x 80mm x 114mm
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5 mohms |
580g |
Single cell |
| PGB2680130-LT |
18 AH |
3.7V |
26mm x 80mm x 135mm
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4 mohms |
680g |
Single cell |
| PGB50120130-LT |
60 AH |
3.7V |
50mm x 110mm x 143mm
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3 mohms |
1800g |
Single cell |
| PGB60130150-LT |
80 AH |
3.7V |
60mm x 130mm x 150mm |
2 mohms |
2200g |
Single cell |
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For battery management boards and chargers for these large
lithium ion cells and packs go to http://www.powerstream.com/LLL.htm
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PowerStream Technologies: 1163 S. 1680 West. Orem Utah
84058
Phone: 801-764-9060
Fax: 801-764-9061
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© Copyright 2000, 2002, 2003, 2004, 2005, 2010, 2011 Lund Instrument
Engineering, Inc. All rights reserved |
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