Lithium/SO/sub 2/ cathode stuides
Conference
·
OSTI ID:5334707
The use of complex impedance analysis for the study of porous carbon cathode collectors used in lithium-sulfur dioxide batteries is described. Fresh cathodes exhibit cylindrical pore behavior at high frequencies and planar electrode behavior at low frequencies. At intermediate frequencies the impedance plots are dependent on the pore geometry. As cathodes are discharged and the pores begin to plug up with solid reaction product, the impedance plots reflect the change from porous to a rough planar electrode. This change is illustrated using porous carbon cathodes from actual Li/SO/sub 2/ batteries. Results of this study indicate that complex impedance analysis is a useful tool for the study of porous battery electrodes, both in the characterization of physical parameters and in the understanding of electrode behavior during discharge.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5334707
- Report Number(s):
- SAND-81-2247C; CONF-820907-2; ON: DE82012777
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
25 ENERGY STORAGE
250902 -- Energy Storage-- Batteries-- Performance & Testing
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ALKALI METALS
CARBON
CATHODES
CHALCOGENIDES
CHEMISTRY
ELECTROCHEMISTRY
ELECTRODES
ELEMENTS
IMPEDANCE
LITHIUM
MATERIALS
METALS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE
PERFORMANCE TESTING
POROUS MATERIALS
PRIMARY BATTERIES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
TESTING
250902 -- Energy Storage-- Batteries-- Performance & Testing
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ALKALI METALS
CARBON
CATHODES
CHALCOGENIDES
CHEMISTRY
ELECTROCHEMISTRY
ELECTRODES
ELEMENTS
IMPEDANCE
LITHIUM
MATERIALS
METALS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE
PERFORMANCE TESTING
POROUS MATERIALS
PRIMARY BATTERIES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
TESTING