Argonne National Laboratory Li-alloy/FeS cell testing and R and D programs

Conference · Fri Jan 01 04:00:00 EST 1982

OSTI ID:6192789

Gay, E C

Groups of 12 or more identical Li-alloy/FeS cells fabricated by Eagle-Picher Industries, Inc. and Gould Inc. were operated at Argonne National Laboratory (ANL) in the status cell test program to obtain data for statistical analysis of cell cycle life and failure modes. The cells were full-size electric vehicle battery cells (150 to 350 Ah capacity) and they were cycled at the 4-h discharge rate and 8-h charge rate. The end of life was defined as a 20% loss of capacity or a decrease in the coulombic efficiency to less than 95%. Seventy-four cells (six groups of identical cells) were cycle-life tested and the results were analyzed statistically. The ultimate goal of this analysis was to predict cell and battery reliability. Testing of groups of identical cells also provided a means of identifying common failure modes which were eliminated by cell design changes. Mean time to failure (MTTF) for the cells based on the Weibull distribution is presented.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6192789
• Report Number(s): CONF-821211-10; ON: DE83010642
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250902* -- Energy Storage-- Batteries-- Performance & Testing
BATTERY SEPARATORS
COMPARATIVE EVALUATIONS
DATA
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
EXPERIMENTAL DATA
FAILURE MODE ANALYSIS
INFORMATION
LITHIUM-SULFUR BATTERIES
METAL-NONMETAL BATTERIES
NUMERICAL DATA
PERFORMANCE TESTING
RELIABILITY
SERVICE LIFE
SYSTEM FAILURE ANALYSIS
SYSTEMS ANALYSIS
TESTING
THERMAL CYCLING