New electrolyte salts for Ll/SOCL/sub 2/ cells

Conference · Sat Oct 01 04:00:00 EDT 1983 · Proc. - Electrochem. Soc.; (United States)

OSTI ID:6408091

Bowden, W L; Cubbison, D; Dey, A N; Miller, J S

The high energy density electrochemical system Li/SOCl/sub 2/ has inherently good volumetric energy density and current capability. The currently used electrolytes of LiAlCl/sub 4/ and Li/sub 2/B/sub 10/Cl/sub 10/ possess objectionable features and therefore new electrolyte salts were evaluated. Two promising electrolytes were discovered, LiGaCl/sub 4/ and Li/sub 2/0.2GaCl/sub 3/. In SOCl/sub 2/ both salts had solubilities and conductivities similar to LiAlCl/sub 4/ at temperatures down to -30/sup 0/C. Both electrolytes were evaluated in spirally wound D cells. At currents of 1A (approximately C/12) or below the voltages and capacities were closely comparable to those recorded for LiAlCl/sub 4/. At higher currents of 3 or 4A the gallium based electrolytes delivered capacities as much as 60% greater than LiAlCl/sub 4/. This dramatic increase in high current capacity is due to reduced cathode passivation. Suggestions are made as to the cause of the increase in capacity.

• Research Organization: Duracell Inc., Northwest Industrial Park, Burlington, MA
• OSTI ID: 6408091
• Report Number(s): CONF-831086-
• Conference Information: Journal Name: Proc. - Electrochem. Soc.; (United States) Journal Volume: 84-1
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
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ALUMINIUM COMPOUNDS
BORON CHLORIDES
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CATHODES
CHEMISTRY
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