Cycle life test and failure model of nickel-hydrogen cells

Conference · Mon Aug 01 04:00:00 EDT 1983 · Proc., Intersoc. Energy Convers. Eng. Conf.; (United States)

OSTI ID:5490472

Smithrick, J

COMSAT and Air Force/Hughes design six ampere-hour individual pressure vessel nickel-hydrogen cells were charge/discharge cycled to failure. They were cycled on a low-earth-orbit cycle regime to a deep depth of discharge (80 percent of rated ampere-hour capacity). Two cells of each design were cycled. One COMSAT cell failed at cycle 1712 and the other failed at cycle 1875. For the Air Force/Hughes cells, one cell failed at cycle 2250 and the other failed at cycle 2638. All cells, of both designs, failed due to low end of discharge voltage. After cell failure, three different reconditioning tests (deep discharge, physical reorientation, and open circuit voltage stand) were conducted on all cells. A fourth reconditioning test (electrolyte addition) was conducted on one cell of each design. In addition, post-cycle cell teardown and failure analysis were performed on the one cell of each design which did not have electrolyte added after failure. These tests were conducted to evaluate failure modes. This paper presents the results of those evaluations.

• Research Organization: National Aeronautics and Space Administration, Lewis Research Center, Cleveland, Ohio
• OSTI ID: 5490472
• Report Number(s): CONF-830812-
• Conference Information: Journal Name: Proc., Intersoc. Energy Convers. Eng. Conf.; (United States) Journal Volume: 4
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250902* -- Energy Storage-- Batteries-- Performance & Testing
CAPACITY
CONTAINERS
DATA BASE MANAGEMENT
DEPTH
DESIGN
DIMENSIONS
ELECTRIC BATTERIES
ELECTRIC DISCHARGES
ELECTRIC POTENTIAL
ELECTROCHEMICAL CELLS
ELECTRODES
ELECTROLYTES
ENERGY LOSSES
FABRICATION
FAILURE MODE ANALYSIS
LOSSES
MANAGEMENT
METAL-GAS BATTERIES
NASA
NATIONAL ORGANIZATIONS
NICKEL-HYDROGEN BATTERIES
PERFORMANCE
PRESSURE VESSELS
SERVICE LIFE
SYSTEM FAILURE ANALYSIS
SYSTEMS ANALYSIS
US ORGANIZATIONS
VOLUME