The electrochemical oxidation of polyacetylene and its battery applications
When oxidized in a nonaqueous cell containing 1.0M LiClO/sub 4/ in propylene carbonate, polyacetylene develops a voltage of 3.4-4.0V vs. Li/Li/sup +/ ClO/sub 4//sup -/. Oxidation levels at least as high as (CH(CLO/sub 4/) /SUB 1/10/ ) /SUB x/ can be produced electrochemically and then reduced to the undoped state with nearly 100% coulombic efficiency. The electrochemical doping (oxidation) process is only efficient when carried out with a minimum of liquid electrolyte under ultraclean conditions. Similar results are observed with a LiAsF/sub 6/ electrolyte. Polyacetylene is an extraordinary material of great importance for electrochemistry. However, on the basis of this and other published research, it is not yet clear that it offers major advantages over current electrodes for high energy density nonaqueous batteries.
- Research Organization:
- Instituto di Chimica Fisica, Universita di Roma
- OSTI ID:
- 7122014
- Journal Information:
- J. Electrochem. Soc.; (United States), Journal Name: J. Electrochem. Soc.; (United States) Vol. 131:1; ISSN JESOA
- Country of Publication:
- United States
- Language:
- English
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250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400400 -- Electrochemistry
ALKALI METAL COMPOUNDS
ARSENIC COMPOUNDS
ARSENIC FLUORIDES
CARBONIC ACID ESTERS
CHEMICAL REACTIONS
CHEMISTRY
CHLORINE COMPOUNDS
DOPED MATERIALS
ELECTRIC BATTERIES
ELECTRIC POTENTIAL
ELECTROCHEMICAL CELLS
ELECTROCHEMISTRY
ELECTRODES
ELECTROLYTES
ENERGY DENSITY
ESTERS
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HYDROCARBONS
LITHIUM COMPOUNDS
LITHIUM FLUORIDES
LITHIUM HALIDES
LITHIUM PERCHLORATES
LITHIUM-CHLORINE BATTERIES
MATERIALS
METAL-GAS BATTERIES
ORGANIC COMPOUNDS
OXIDATION
OXYGEN COMPOUNDS
PERCHLORATES
POLYACETYLENES
POLYENES