Performance of a 10-cell LiA/psi//Metal sulfide battery

Conference · Sun Aug 01 04:00:00 EDT 1982 · Proc., Intersoc. Energy Convers. Eng. Conf.; (United States)

OSTI ID:5641391

Miller, W E; Gay, E C; Kilsdonk, D

A 4kWh LiA/psi//FeS battery having a molten salt electrolyte was fabricated by Eagle-Picher Industries under contract to ANL and was tested through 150 deep discharge cycles at ANL. The battery module contained ten series connected cells having theoretical capacities of 394 Ah. When fully charged, the battery gave 340 Ah at a 70-A discharge for a cell specific energy of 90 Wh/kg. Battery discharge was terminated when the weakest cell reached a 0.9-V cutoff and was terminated on bulk charge when the strongest cell reached a 1.55-V cutoff. The battery was fully charged through equalization after about every 8 cycles. Between charge equalizations, the battery capacity loss rate was about 0.75% of the fully charged capacity per cycle. Normal capacity fade rate for individual cells is 0.02-0.03% per cycle. The higher loss rate for the battery resulted from capacity and coulombic efficiency differences among the cells. During the last third of battery life three cells developed internal short circuits by a common failure mode.

• Research Organization: Argonne National Laboratory, Argonne, IL
• OSTI ID: 5641391
• Report Number(s): CONF-820814-
• Conference Information: Journal Name: Proc., Intersoc. Energy Convers. Eng. Conf.; (United States) Journal Volume: 2
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250902* -- Energy Storage-- Batteries-- Performance & Testing
ALKALI METALS
ALUMINIUM
BATTERY CHARGING
CAPACITY
CHALCOGENIDES
CHARGE STATE
ELECTRIC BATTERIES
ELECTRIC DISCHARGES
ELECTRICAL FAULTS
ELECTROCHEMICAL CELLS
ELECTROLYTES
ELEMENTS
ENERGY LOSSES
FABRICATION
FAILURE MODE ANALYSIS
IRON COMPOUNDS
IRON SULFIDES
LITHIUM
LOSSES
METAL-NONMETAL BATTERIES
METALS
MOLTEN SALTS
PERFORMANCE TESTING
POWER LOSSES
SALTS
SERVICE LIFE
SULFIDES
SULFUR COMPOUNDS
SYSTEM FAILURE ANALYSIS
SYSTEMS ANALYSIS
TESTING
TRANSITION ELEMENT COMPOUNDS