Electrochemical cells having lithium tetrachloroiodate cathodes
First Claim
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1. An electrochemical cell comprising anode, cathode, and electrolyte elements, and means operatively associating the elements for the generation of electrical energy, wherein:
- (a) the anode is selected from the group of metals consisting essentially of lithium and calcium;
(b) the electrolyte comprises a liquid inorganic solvent selected from the group consisting of SOCl2, POCl3, SO2 Cl2, SOBr2, SeOCl2, CrOCl2, SPCl3, VOCl3, SPBr3 and VOBr3, and a conductivity enhancing salt dissolved in the inorganic solvent, the anion of the salt being lithium when the anode is lithium and being lithium or calcium when the anode is calcium; and
(c) the cathode consists essentially of a tetrachloroiodate salt of the general formula M(ICl4)n and wherein;
M=Li, Na, K, Rb, Cs, Sr or Ba when anode is lithium,M=Li, Na, K, Rb, Cs, Sr, Ba or Ca when the anode is calcium, andn=1 or 2.
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Abstract
Electrochemical cells comprising an active metallic anode, preferably lithium, a non-aqueous electrolyte, preferably thionyl chloride, and a lithium tetrachloroiodate (LiICl4) cathode.
30 Citations
18 Claims
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1. An electrochemical cell comprising anode, cathode, and electrolyte elements, and means operatively associating the elements for the generation of electrical energy, wherein:
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(a) the anode is selected from the group of metals consisting essentially of lithium and calcium; (b) the electrolyte comprises a liquid inorganic solvent selected from the group consisting of SOCl2, POCl3, SO2 Cl2, SOBr2, SeOCl2, CrOCl2, SPCl3, VOCl3, SPBr3 and VOBr3, and a conductivity enhancing salt dissolved in the inorganic solvent, the anion of the salt being lithium when the anode is lithium and being lithium or calcium when the anode is calcium; and (c) the cathode consists essentially of a tetrachloroiodate salt of the general formula M(ICl4)n and wherein; M=Li, Na, K, Rb, Cs, Sr or Ba when anode is lithium, M=Li, Na, K, Rb, Cs, Sr, Ba or Ca when the anode is calcium, and n=1 or 2. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 16, 17, 18)
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- 11. An electrochemical cell having an anode consisting essentially of lithium, an electrolyte consisting essentially of thionyl chloride, a cathode consisting essentially of lithium tetrachloroiodate associated with the anode and the electrolyte and a conductivity enhancing lithium salt dissolved in the electrolyte for enhancing the conductivity thereof with respect to the anode metal ions.
Specification