April 25, 2024

Ultra low weight lithium ion batteries

The largest off-the-shelf selection of lithium polymer cells in the world

battery discharge test equipment for tiny batteries

Precise battery discharge tester for small and tiny cells

Less than third of a gram!

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 330 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 cell200s--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 330mg as-shipped. By removing the masking tape that protects the leads and shortening the leads they can be easily be lightened to about 320 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 lower.

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.

Examples of batteries that we have made	Thickness	Nominal Voltage (V)	Rated capacity (mAh)	Dimensions T x W x H mm	Weight (grams)	1-19 pieces	20-99 pieces	100-499
GM300910H TUV UL1642 cert.	3 mm	3.7	8 mAH 80mA High discharge	3 x 9 x 10	0.33 g	$15.00 Not available at this time, sorry	$10.00	$7.94
GM300910H-PCB TUV UL1642 cert.	3 mm	3.7	8mAH high discharge with PCB	3 x 9 x 10 (length of PCB version can be up to 12mm)	0.5 g	$17.00 Not available at this time, sorry	$12.00	$8.60
GM300910 TUV UL1642 cert.	3 mm	3.7	12mAH 6mA discharge	3 x 9 x 10	.33 g	$15.00	$10.00	$7.94
GM300910-PCB TUV UL1642 cert.	3 mm	3.7	12mAH 6mA discharge	3 x 9 x 10 (length of PCB version can be up to 12mm)	0.5 g	$17.00	$12.00	$8.60
GM301014H	3mm	3.7	14mAH 140mA discharge	3x10x15mm	0.54 g	$15.00	$10	$7.94
GM301014H-PCB		3.7	14mAH 140mAH discharge			$17.00	$12.00	$8.60
PGEB181118	1.8 mm	3.7	15mAH	1.8 x 11 x 18	1 g	$10.00	$6.20	$3.95
GM300815	3 mm	3.7	15 mAH	3 x 8 x 15		$15.00	$12.00	$7.94
PGEB201212	2 mm	3.7	10 mAH	2 x 12 x 12.5	0.45 to 0.68 g	$15.00	$10.00	$7.94
GM470910	4.7 mm	3.7V	18mAH	4.7 x 9 x 10	0.52	$15.00 each	$10.00	$7.94
GM201515	2 mm	3.7 V	20 mAH	2 x 15 x15 mm	0.43g-0.5g	$10.00 each	$6.20	$3.95
GM201021 TUV UL1642 cert.	2 mm	3.7V	22mAH	2.0×10×21		$13.00	$7.00	$4.30
GM201021-PCB TUV UL1642 cert.	2mm	3.7	22mAH	2.0x10x21		$15.00	$9.00	$6.70
GM301016 TUV UL1642 cert.	3mm	3..7V	25mAH	3 x 10 x 16mm	0.64 g	$7.65	$6.15	$3.97
GM301016-PCB TUV UL1642 cert.	3mm	3.7V	25mAH with protection board	3.5x11x 17		$9.25	$8.15	$4.45
GM041215	4 mm	3.7V	45 mAH	4 x 12 x 15 mm	1.1 g	$6.15	$6.15	$2.05
GM051215	5 mm	3.7 V	50 mAH	5 x 12 x 15 mm	1.2 g	$9.30		$3.10
GM301030	3 mm	3.7 V	62 mAH	3 x 10 x 30 mm		$10.80	$10.80	$3.60
GM301030-PCB	3 mm	3.7V	62 mAH	3 x 10 x 30 mm		$12.80	$12.80	$5.60

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
2	0.436 g
3	0.442 g
4	0.438 g	0.424g	Just took off the masking tape

Discharge curves for ultra-light lithium ion batteries

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.

Dimension drawing of the PGEB201515 ultra-light lithium cell

[Home] [PowerStream] [Site Map]
[Tech Resources] [Policy and Privacy] [Contact Us]

Thank you for considering PowerStream

Thursday, 21-Nov-2024 03:39:35 EST

Tiny lithium polymer, light weight lithium ion cells, 500 mg lithium polymer battery cells

PowerStream Technology 1163 South 1680 West Orem, Utah 84058 USA Phone: 801-764-9060 Fax: 801-764-9061
© Copyright 2000, 2002, 2003, 2004, 2005, 2006, 2008,2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 Lund Instrument Engineering, Inc. All rights reserved. Google Author Verification