By Topic

Status of the Air Force nickel hydrogen low earth orbit life test

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
House, S.D. ; US Air Force Philips Lab., Kirtland AFB, NM, USA ; Hill, C.A.

The US Air Force NiH/sub 2/ LEO (low earth orbit) life test consists of 200 cells undergoing real-time LEO cycling, pulse discharge testing, and storage testing. To date, three of the program's four objectives have been met: NiH/sub 2/ performance in LEO applications has been demonstrated. A significant number of cells have completed more than 20,000 cycles at 40% DOD. A database for cells of both 3.5 in. and 4.5 in. diameter has been generated. There have been no indications of any performance problems related to scaling up in terms of cell size. Initial data on the pulse discharge performance of a small number of cells has been demonstrated. Concerning the goal of achieving 20,000 cycles at 60% DOD, the data are mixed. Overall, it appears highly unlikely that cell designs such as those currently in the US Air Force test can achieve 20,000 cycles at 60%.<>

Published in:

Aerospace and Electronic Systems Magazine, IEEE  (Volume:8 ,  Issue: 12 )