Lithium cell with cathode including iron disulfide and iron sulfide

A primary electrochemical cell comprising a housing;

• a positive and a negative terminal;
• an anode comprising at least one of a lithium metal and lithium alloy;
• a cathode comprising iron disulfide (FeS2), iron sulfide (FeS), and conductive carbon, said cell further comprising an electrolyte inserted therein, said electrolyte comprising a lithium salt comprising bistrifluoromethylsulfonyl imide (Li(CF3SO2)2N) dissolved in a solvent mixture comprising dioxolane and sulfolane, wherein said electrolyte further comprises an additive comprising an alkylpyrazole, wherein the FeS and FeS2 has a bimodal particle size distribution and wherein the FeS2has an average particle size between about 20 and 35 micron and the FeS has an average particle size between about 5 and 15 micron.

A primary electrochemical cell comprising a housing;

• a positive and a negative terminal;
• an anode comprising at least one of a lithium metal and lithium alloy;
• a cathode comprising iron disulfide (FeS2), iron sulfide (FeS), and conductive carbon, said cell further comprising an electrolyte inserted therein, said electrolyte comprising a lithium salt comprising bistrifluoromethylsulfonyl imide (Li(CF3SO2)2N) dissolved in a solvent mixture comprising dioxolane and sulfolane, wherein said electrolyte further comprises an additive comprising an alkylimidazole, wherein the FeS and FeS2has a bimodal particle size distribution and wherein the FeS2 has an average particle size between about 20 and 35 micron and the FeS has an average particle size between about 5 and 15 micron.

A primary electrochemical cell comprising a housing;

• a positive and a negative terminal;
• an anode comprising at least one of a lithium metal and lithium alloy;
• a cathode comprising iron disulfide (FeS2), iron sulfide (FeS), and conductive carbon, said cell further comprising an electrolyte inserted therein, said electrolyte comprising a lithium salt comprising lithium iodide (LiI) dissolved in a solvent mixture comprising dioxolane, dimethoxyethane, and sulfolane. wherein the FeS and FeS2has a bimodal particle size distribution and wherein the FeS2 has an average particle size between about 20 and 35 micron and the FeS has an average particle size between about 5 and 15 micron.

A primary electrochemical cell comprising a housing;

• a positive and a negative terminal;
• an anode comprising lithium;
• a cathode comprising iron disulfide (FeS2), iron sulfide (FeS), and conductive carbon, said cell further comprising an electrolyte comprising a lithium salt comprising bistrifluoromethylsulfonyl imide (Li(CF3SO2)2N) dissolved in a solvent comprising dimethoxyethane, sulfolane, and tin iodide (SnI2) additive, wherein the FeS and FeS2has a bimodal particle size distribution and wherein the FeS2has an average particle size between about 20 and 35 micron and the FeS has an average particle size between about 5 and 15 micron.

A primary electrochemical cell comprising a housing;

• a positive and a negative terminal;
• an anode comprising lithium;
• a cathode comprising iron disulfide (FeS2) iron sulfide (FeS), and conductive carbon, said cell further comprising an electrolyte comprising a lithium salt comprising lithium iodide (LiI) dissolved in a solvent comprising dimethoxyethane, sulfolane, and tin iodide (SnI2) additive, wherein the FeS and FeS2 has a bimodal particle size distribution and wherein the FeS2has an average particle size between about 20 and 35 micron and the FeS has an average particle size between about 5 and 15 micron.