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Ultra low weight
lithium ion batteries |
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Less than half a gram! |
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Batteries, Chargers, and Power Supplies, Custom and
off-the-shelf.
PowerStream has been working with a team of
engineers in China to develop the lowest weight lithium ion batteries. We can
now offer design engineers batteries of down to a mass of 300 mg. These cells
should be useful for sensor, tags, and ultra-light models.
Though these cells have small capacities--they have about the same
capacity as coin and button cells--they have a wide range of applications.
There are microcontrollers that draw less than 1 microamp, such as the TI
MSP430 in standby mode, so a 10 mAH battery could run these for 5 months
between charges.
Ultra-lightweight cells can be used for military,
sensors, tags, and cards. They can be made in the ultra-thin or the multilayer
technologies.
Weight: These weigh about 450mg as-shipped. By
removing the masking tape that protects the leads and shortening the leads they
can be easily be lightened to about 400 mg. It is not recommended to trim down
the flange area because it can severely shorten the life of the cell (or kill
it), but if this is done the cells can usually be brought down to a mass of 375
mg or less.
Features:
1. High operating voltage(3.6V)
2. Energy density is high,
3. No memory effect
4. Self-discharge is
less than 10% per month
5. Charge/discharge cycle characteristics are
excellent
6. Safety characteristics are excellent
7. Processing
temperatures for these cells is 100°C for less than 60 seconds, 120°C
for less than 20 seconds and 140°C for less than 5 seconds.
Ultralight-weight Lithium Polymer Cells.
Note at
this time we have one standard product. Other cells can be made to your
specifications and will require a tooling charge and minimum order of 100
pieces.
We
are also working on a 300 mg cell.
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Examples of batteries that we
have made |
Thickness |
Nominal Voltage
(V)
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Rated capacity (mAh) |
Dimensions T x W x H
mm |
Weight
(grams)
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1-19
pieces |
20-99
pieces |
100-499 |
| PGEB201515 |
2
mm |
3.7
V |
10
mAH
(High rate dischage capacity is above 7mAH when discharged at 80
mA) |
2 x
15 x15 mm |
0.43g-0.5g |
$20.00
each
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$18.35 |
$14.80 |
| GM300910 |
3
mm |
3.7 |
15
mAH |
3 x 9
x 10 |
0.43
g |
$15.00
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$10. |
$7.94 |
| GM041215 |
5
mm |
3.7
V |
45
mAH |
4 x
12 x 15 mm |
1.2
g |
$6.15
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$6.15 |
$2.05 |
GM051215
NO LONGER AVAILABLE USE
GM041215with safety board |
5
mm |
3.7
V |
45
mAH |
5 x
12 x 15 mm |
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$8.15 |
$8.15 |
$3.25 |
| GM601118 |
6
mm |
3.7
V |
75
mAH |
6 x
11 x 18 mm |
1.6
g |
$6.45
Out of Stock |
$6.45 |
$2.45 |
We have measured 4 samples of the
PGEB201515 were taken at random. Preliminary results are as follows:
| Sample |
Mass |
Mass after lightweighting |
Notes |
| 1 |
0.470 g |
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| 2 |
0.436 g |
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| 3 |
0.442 g |
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| 4 |
0.438 g |
0.424g |
Just took off the masking tape |
These are great cells. They are designed for
low current discharge, but the above curve shows what they do at high current
discharge rates, up to 8C.
Note the following features:
- At 80 mA (about 8C) you still get 78% of the rated
capacity, terminating at 3 volts
- At 10 mA (about 1C) you get 11.5 mAH of the rated
capacity terminating at 3 volts
- The voltage stays high even at these extreme
currents
- Even at 80 mA (8C) there is enough energy for over
40,000 pulses, 100 mSec each.
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PowerStream Technology:
140 South Mountainway Drive, Orem Utah 84058
Phone: 801-764-9060, 9062, 9063, or 9064
Fax: 801-764-9061 |
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PowerStream
Technology
140 South Mountainway Dr.
Orem,
UT 84058
Phone: 801-764-9060, 9062, 9063, or 9064
Fax:
801-764-9061
Map &
Directions |
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© Copyright 2000,
2002, 2003, 2004, 2005, 2006, 2007 Lund Instrument Engineering, Inc. All rights
reserved |
This material is copyrighted original work. It is
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Tiny
lithium polymer, light weight lithium ion cells, 500 mg lithium polymer battery
cells |
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