H - Electricity – 01 – M
Patent
H - Electricity
01
M
319/34
H01M 10/40 (2006.01)
Patent
CA 1089928
ABSTRACT OF THE DISCLOSURE Reversible alkali metal anode/metal chalcogenide cathode cells, e.g. lithium batteries, are described having electrolyte compositions which consist essentially of (a) organic solvents selected from the group consisting of inertly substituted and unsub- stituted ethers, esters, sulfones, organic sulfites, organic sulfates, organic nitrites and organic nitro compounds; and (b) electrolytically active alkali metal salts including polyaryl metallic alkali metal salts having the formula ZMRn wherein Z is an alkali metal, M is a metal selected from the group consisting of Zn, Cd, B, Al, Ga, In, Tl, Sn (stannous), P and As, the Rs are certain aryl radicals, and n is a numerical value equal to one plus the valence of the metal M. Rechargeable, high energy density electrochemical cells containing an anode having an alkali metal as its active material, a cathode having as its active material a transition metal chalcogenide, e.g. TiS2, and an electrolyte composition of the above-described type, are preferred.
302476
Klemann Lawrence P.
Newman Gerald H.
Borden Ladner Gervais Llp
Exxon Research And Engineering Company
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