Lithium rechargeable cell with a polymer cathode. Final report, Oct 89-Jan 91
Thin films of electropolymerized poly 3-methylthiophene (PMT) were used as a rechargeable cathode in Li(SO2)3AlCl4 electrolyte. Capacity was superior to porous carbon electrodes of like thickness. Pulse power levels of 2 W cm-2 were achieved, and high rate constant current pulses of four-second duration were reproducible over cycles. Cells could be recharged at potentials below 4.0 V, minimizing the formation of chlorine and thereby diminishing the capacity for corrosion. A primary cell, greater discharge capacity was obtained with thionyl chloride and sulfuryl chloride electrolytes. Since PMT becomes electrically, insulating in the reduced state, this could be used as a built-in safety feature to avert the hazards associated with abuse over-discharge.
- Research Organization:
- Army Electronics Technology and Devices Lab., Fort Monmouth, NJ (United States)
- OSTI ID:
- 5281692
- Report Number(s):
- AD-A-247577/0/XAB; SLCET-TR--91-35
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ALKALI METAL COMPOUNDS
BATTERY CHARGING
CARBON
CATHODES
CHALCOGENIDES
CHEMICAL REACTIONS
CHLORIDES
CHLORINE
CHLORINE COMPOUNDS
CORROSION
DESIGN
DIMENSIONS
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTRODES
ELECTROLYTES
ELEMENTS
FILMS
HALIDES
HALOGEN COMPOUNDS
HALOGENS
HAZARDS
LITHIUM COMPOUNDS
LITHIUM-CHLORINE BATTERIES
METAL-GAS BATTERIES
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE
POLYMERS
POWER
PULSES
SAFETY
SULFUR
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
THICKNESS
THIN FILMS