26th Intersociety Energy Conversion Engineering Conference
When individual pressure vessel (IPV) nickel-hydrogen (Ni/H2) cells were selected as the energy storage system for the Space Station Freedom in March of 1986, a limited database existed on life and performance characteristics of these cells in a low earth orbit (LEO) regime. Therefore, NASA LeRC initiated a Ni/H2 cell test program with the primary objectives of building a test facility, procuring cells from existing NASA contracts, and screening several cell designs by life testing in a LEO 35 percent depth of discharge (DOD) scenario. A total of 40 cells incorporating 13 designs were purchased from Yardney, Hughes, and Eagle-Picher. Thirty-two of the cells purchased were 65 A-hr nameplate capacity and eight cells were 50 A-hr. Yardney and Eagle-Picher cells were built with both the Air Force recirculating and the advanced back-to-back electrode stack configurations and incorporated 31 and 26 percent KOH. Acceptance testing of the first delivered cells began in March of 1988, with life testing following in September of that year.Performance comparisons of these cells are made here while specifically addressing life test data relative to the design differences.
- Research Organization:
- National Aeronautics and Space Administration, Cleveland, OH (United States). Lewis Research Center
- OSTI ID:
- 6364067
- Report Number(s):
- N-91-31708; NASA-TM--105229; E--6552; NAS--1.15:105229; CONF-910801--
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
250902* -- Energy Storage-- Batteries-- Performance & Testing
ALKALI METAL COMPOUNDS
CONTAINERS
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTRODES
ELECTRONIC EQUIPMENT
EQUIPMENT
HYDROGEN COMPOUNDS
HYDROXIDES
METAL-GAS BATTERIES
NICKEL-HYDROGEN BATTERIES
OXYGEN COMPOUNDS
PERFORMANCE TESTING
POTASSIUM COMPOUNDS
POTASSIUM HYDROXIDES
POWER SUPPLIES
PRESSURE VESSELS
SERVICE LIFE
SPACECRAFT POWER SUPPLIES
TESTING