Product category:
Batteries and Chargers
News Release from: Saft Lithium Battery Division | Subject: LSH 20 HTS cells
Edited by the Electronicstalk Editorial
Team on 17 October 2005
Space-qualified batteries come to mass
market
Saft is now able to offer its specialised, super robust LSH 20 HTS lithium-thionyl chloride (Li-SOCl2) cylindrical D-size cells to general customers.
Saft is now able to offer its specialised, super robust LSH 20 HTS lithium-thionyl chloride (Li-SOCl2) cylindrical D-size cells to general customers The high-drain/high-pulse cells, developed originally to offer the ultimate in vibration, shock and temperature resistance for space probes, have already demonstrated an outstanding track-record, since mid-2004, with a number of OEMs in demanding oil and gas exploration monitoring applications, such as MWD (measurement while drilling) devices
This article was originally published on Electronicstalk on 3 Feb 2000 at 8.00am (UK)
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The super robust LSH 20 HTS cell is a mechanically upgraded version of Saft's well established LSH HT cell, already capable of operating over temperatures from -60 to +120C.
This latest version was developed originally for space applications, such as the lander Philae on the Rosetta ESA probe, to withstand the high levels of shock, vibration and acceleration during launch and stage separation.
LSH 20 HTS battery packs are flight equipment that will power Philae during its descent and landing operations at comet 67P/Churyumov-Gerasimenko.
Further reading
9V battery has double the capacity of alkalines
Saft's new 9V primary (non-rechargeable) lithium batteries have twice the capacity of standard alkaline equivalents, doubling the life between battery changes of equipment.
Lithium primary cell gives a 12% capacity boost
Saft's new LS 33600C primary lithium cell has a nominal capacity of 18.5Ah, 12 per cent higher than Saft's existing high-capacity D-size lithium cell.
High levels of shock, vibration, pressure and extreme temperatures are also typical of the harsh conditions found in oil and gas well drilling and monitoring as exploration projects drill ever deeper to access more reserves.
So LSH 20 HTS cells are also finding applications in many types of downhole monitoring and measurement such as MWD (measurement while drilling) and LWD (logging while drilling).
They are also ideal for military applications with high vibration levels such as ejector seat beacons.
The LSH 20 HTS cell has a nominal voltage of 3.6V and a 12.0Ah capacity (at 50mA +70C and 2.0V cutoff).
It can provide short-term pulse currents up to 4000mA and a maximum continuous current of 1000mA.
It has a low self-discharge of less than 3% a year, when stored at +20C.
The LSH 20 HTS cell can operate from -60C to +120C, and withstand 48-hour excursions up to +125C.
The LSH 20 HTS can withstand axial vibration of 20g RMS (2-100Hz), radial vibration of 30g RMS (2-100Hz), 30g peak (30 to 2000Hz) and random 20g RMS (30 to 1000Hz).
The LSH 20 HTS cells are manufactured in France.
They feature a power-optimised spiral electrode construction, with a nonflammable electrolyte, contained within an hermetically sealed stainless-steel container with built-in safety vent.
Saft recommends that the LSH 20 HTS should be purchased as part of a pre-assembled, custom built battery pack.
As assembly under controlled factory conditions will assure that the exceptional vibration and shock performance is sustained at both the individual cell and pack levels. Request a free brochure from Saft Lithium Battery Division ...
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