Dual intercalating molten electrolyte batteries

Journal Article · Fri Jul 01 04:00:00 EDT 1994 · Journal of the Electrochemical Society; (United States)

DOI:https://doi.org/10.1149/1.2055041· OSTI ID:7188655

Carlin, R T; De Long, H C; Fuller, J; Trulove, P C ^[1]

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1. Air Force Academy, CO (United States). Frank J. Seiler Research Lab.

The reductive and oxidative intercalation of ions into graphite from room-temperature and low temperature molten salts is demonstrated. For this investigation, the molten salts use 1-ethyl-3-methylimidazolium (EMI[sup +]) or 1,2-dimethyl-3-propylimidazolium (DMPI[sup +]) as the cation and AlCl[sup [minus]][sub 4], BF[sup [minus]][sub 4], PF[sup [minus]][sub 6], CF[sub 3]SO[sup [minus]][sub 3], or C[sub 6]H[sub 5]CO[sup [minus]][sub 2] as the anion. In a two-electrode battery configuration, the molten salt electrolyte provides both the cation and anion which are intercalated into the graphite anode and cathode, respectively. A cell employing a (DMPI)(AlCl[sub 4]) electrolyte and two graphite rod electrodes achieved an open-circuit voltage of 3.5 V and a cycling efficiency of 85%.

• OSTI ID: 7188655
• Journal Information: Journal of the Electrochemical Society; (United States), Journal Name: Journal of the Electrochemical Society; (United States) Vol. 141:7; ISSN 0013-4651; ISSN JESOAN
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250900* -- Energy Storage-- Batteries
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AZOLES
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CARBON COMPOUNDS
CARBON FLUORIDES
CARBOXYLIC ACID SALTS
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CHLORINE COMPOUNDS
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FLUORIDES
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PHOSPHORUS FLUORIDES
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