Composite polymer positive electrodes in solid-state lithium secondary batteries
The authors have developed composite polymer electrodes for use in all solid-state batteries in combination with Li. The composite is formed from water soluble polypyrrole which is combined with the solid polymer electrolyte polyethylene oxide. The composite electrode shows enhanced coulombic capacity as compared to an electrode composed only of the electroactive material, polypyrrole. Coulombic efficiency is good (90-95%) and energy efficiency is acceptable (80-85%) in galvanostatic studies. Charge retention is rather poor due to self-discharge. They have obtained proof that the electroactivity is due to polypyrrole, through the use of in situ spectroelectrochemical studies. They have characterized the composite electrode using scanning electron microscopy and conductive measurements.
- Research Organization:
- J. Heyrovsky Institute of Physical Chemistry and Electrochemistry, Czechoslovak Academy of Sciences, CS - 102 00 Prague 10
- OSTI ID:
- 6344892
- Journal Information:
- J. Electrochem. Soc.; (United States), Journal Name: J. Electrochem. Soc.; (United States) Vol. 134:6; ISSN JESOA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ALCOHOLS
AZOLES
CAPACITY
CHEMISTRY
COMPOSITE MATERIALS
EFFICIENCY
ELECTRIC BATTERIES
ELECTRIC CONDUCTIVITY
ELECTRIC DISCHARGES
ELECTRICAL PROPERTIES
ELECTROCHEMICAL CELLS
ELECTROCHEMISTRY
ELECTRODES
ELECTROLYTES
ELECTRON MICROSCOPY
ENERGY EFFICIENCY
GLYCOLS
HETEROCYCLIC COMPOUNDS
HYDROXY COMPOUNDS
MATERIALS
MICROSCOPY
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
PHYSICAL PROPERTIES
POLYETHYLENE GLYCOLS
POLYMERS
PYRROLES
SCANNING ELECTRON MICROSCOPY
SOLID ELECTROLYTES