LiAl/Cl/sub 2/ battery with a four-component alkali-metal chloride electrolyte

Thesis/Dissertation · Wed Jan 01 00:00:00 EST 1986

OSTI ID:6622291

Thomas, D L

A LiAl/Cl/sub 2/ cell operating at 280/sup 0/ was demonstrated. The electrolyte is a mixture of LiCl, KCl, RbCl, and CsCL with a eutectic melting point of 258/sup 0/C. Physical properties of the melt and the Cl/sub 2/-melt system were measured. Two types of Cl/sub 2/ electrodes were tested. The discharge current in the flow-through Cl/sub 2/ electrode was limited by the high viscosity of the electrolyte (40 cP), which limited the flow rate and Cl/sub 2/ supply through the graphite cloth electrode. Currents as high as 50 mA/cm/sup 2/ were observed with the gas-diffusion Cl/sub 2/ electrode. The capacity of the cell was limited by the LiAl electrode. The gas-diffusion electrode reaction volume was modeled as a meniscus film in a cylindrical pore. The model indicates that high polarization of the positive electrode is caused by the small ratio of film cross-sectional area to pore cross-sectional area, necessitating high film currents to support modest bulk electrolyte currents. Modeling indicated that the negative electrode rate was limited by solid-state diffusion of Li through the LiAl.

• Research Organization: Brigham Young Univ., Provo, UT (USA)
• OSTI ID: 6622291
• Resource Relation: Other Information: Thesis (Ph. D.)
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
METAL-GAS BATTERIES
ELECTROLYTES
ALKALI METAL COMPOUNDS
CHLORIDES
DIFFUSION
ELECTRIC CURRENTS
HIGH TEMPERATURE
VISCOSITY
CHLORINE COMPOUNDS
CURRENTS
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
HALIDES
HALOGEN COMPOUNDS
250903* - Energy Storage- Batteries- Materials
Components
& Auxiliaries