Novel aqueous aluminum/sulfur batteries

Journal Article · Fri Jan 01 04:00:00 EST 1993 · Journal of the Electrochemical Society; (United States)

DOI:https://doi.org/10.1149/1.2056120· OSTI ID:6592164

Licht, S; Peramunage, D ^[1]

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1. Clark Univ., Worcester, MA (United States)

Aluminum sulfur batteries based on concentrated polysulfide catholytes and an alkaline aluminum anode are introduced and investigated. The new battery is expressed by aluminum oxidation and aqueous sulfur reduction for an overall battery discharge consisting of 2Al + S[sub 4][sup 2[minus]] + 2 OH[sup [minus]] + 4H[sub 2]O [yields] 2Al(OH)[sub 3] + 4HS[sup [minus]]; E[sub cell] = 1.79V. The theoretical energy density of the Al/S battery (based on potassium salts) is 647 Wh/kg. A first generation aluminum sulfur battery is demonstrated with an open-circuit voltage of 1.3 V, and energy densities based, respectively, on dry and total battery materials of 170 and 110 Wh/g.

• OSTI ID: 6592164
• Journal Information: Journal of the Electrochemical Society; (United States), Journal Name: Journal of the Electrochemical Society; (United States) Vol. 140:1; ISSN 0013-4651; ISSN JESOAN
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250902* -- Energy Storage-- Batteries-- Performance & Testing
ALUMINIUM
CHEMICAL REACTIONS
DATA
ELECTRIC BATTERIES
ELECTRIC POTENTIAL
ELECTROCHEMICAL CELLS
ELEMENTS
ENERGY DENSITY
EXPERIMENTAL DATA
INFORMATION
METAL-NONMETAL BATTERIES
METALS
NONMETALS
NUMERICAL DATA
OXIDATION
PERFORMANCE
REDUCTION
SULFUR