Abstract: A battery that cycles lithium ions includes a negative electrode, a positive electrode spaced apart from the negative electrode, and an electrolyte infiltrating the positive electrode. The positive electrode includes a high-voltage positive electrode material. The electrolyte includes an organosulfur compound, a fluorinated aromatic co-solvent, a solid electrolyte interphase (SEI) former, and at least one lithium salt.

Abstract: A non-aqueous electrolyte comprising a salt, a non-aqueous solvent, and a compound of Formula (I) or Formula (II) or Formula (III) or Formula (IV) or Formula (V):

Abstract: An electrochemical cell includes an anode that includes silicon, a conductive carbon, a lithium titanate, lithium metal, or a combination of any two or more thereof; a separator; a cathode having a cathode active material and a redox active species either mixed into the cathode or coated onto the cathode; and an electrolyte that includes a salt; and an aprotic solvent comprising a fluorinated ether solvent, a carbonate solvent, or a mixture thereof, with the proviso that the redox active species has substantially no solubility in the electrolyte. The redox active species may be a redox active organic compound or polymer.

Abstract: An electrochemical cell includes a cathode comprising a cathode active material, an anode comprising an anode active material, and an electrolyte comprising a sulfonyl solvent, a terminally fluorinated glycol ether, and a salt. Other electrochemical cells include a cathode, an anode, a separator, and an electrolyte comprising: a lithium salt; a cathode stabilizing additive selected from the group consisting of vinylene carbonate, vinyl ethylene carbonate, LiBF2(C2O4), LiB(C2O4)2, LiPF2(C2O4)2, LiPF4(C2O4), LiPF6, LiAsF6, CsF, CsPF6, Li2(B12X12-iHi), Li2(B10X10-i?Hi?), or a mixture of any two or more thereof, wherein the cathode stabilizing additive is not the same as the lithium salt, wherein each X is independently at each occurrence a halogen, i is an integer from 0 to 12 and i? is an integer from 0 to 10; and a fluorinated organosulfate compound.

Abstract: An electrochemical device comprising of a sulfur-based or alkali and/or alkali earth metal sulfide-based cathode, alkali and/or alkali earth metal-based anode with or without anode protection, a porous separator, non-aqueous electrolyte composition comprising of two or more alkali and/or alkali earth salts that has a total non-alkali/alkali earth metal NO3? (nitrate) salt concentration of below 0.1 M, one or more solvent, and the inclusion of a high donor number lithium salt; wherein the electrochemical device is a alkali and/or alkali earth metal sulfur battery.

Abstract: A lithium ion battery includes a cathode including a cathode active material; an anode including silicon, a conductive carbon, lithium metal, or a combination of any two or more thereof; a separator; and an electrolyte including a lithium sulfonylimide salt, a dicarbonyl solvent, and a fluorinated ether solvent.

Abstract: An electrochemical cell includes an anode that includes silicon, a conductive carbon, a lithium titanate, lithium metal, or a combination of any two or more thereof; a separator; a cathode having a cathode active material and a redox active species either mixed into the cathode or coated onto the cathode; and an electrolyte that includes a salt; and an aprotic solvent comprising a fluorinated ether solvent, a carbonate solvent, or a mixture thereof, with the proviso that the redox active species has substantially no solubility in the electrolyte. The redox active species may be a redox active organic compound or polymer.

Abstract: An electrochemical cell includes a cathode of oxygen or a metal oxide; an anode being made of lithium metal; and an electrolyte including a lithium sulfonylimide salt, a terminally fluorinated glycol ether, and optionally an electrolyte additive, a aprotic gel polymer, or a mixture thereof.

Abstract: Methods of applying as-prepared alkaline source materials for a secondary battery. The cathode includes an alkaline source material with or without coating including an alkali metal oxide, an alkali metal sulfide, an alkali metal salt, or a combination of any two or more thereof. An as-prepared spread coating layer for a secondary battery, the coating layer includes an alkaline source material, including an alkali metal oxide, an alkali metal sulfide, and an alkali metal salt, with or without coating, a conductive carbon, a catalyst, or a combination of any two or more thereof. An as-prepared electrolyte for a secondary battery, the electrolyte includes an alkaline source material including an alkali metal oxide, an alkali metal sulfide, an alkali metal salt, or a combination of any two or more thereof.

Abstract: Described herein are fluoro-substituted ethers of Formula (I): wherein R1 is a fluoro-substituted C2-C6 alkyl group; R2 is a C2-C6 alkyl group or a fluoro-substituted C2-C6 alkyl group; each R3 independently is H, F, methyl, or fluoro-substituted methyl; and n is 0, 1, 2, 3, or 4. The fluoro-substituted ether compounds are useful as solvents for lithium containing electrolytes in lithium batteries, particularly lithium-sulfur batteries.

Abstract: An electrolyte, electrochemical device, battery, capacitor, and/or the like include a salt; and a fluorinated organosulfate compound represented by Formula I: wherein, R1 is H, OR3, alkyl, alkenyl, alkynyl, aralkyl, or silyl; R2 is H, OR3, alkyl, alkenyl, alkynyl, aralkyl, or silyl; and R3 is H, alkyl, alkenyl, alkynyl, aryl, heterocyclyl, heteroaryl, or siloxy; or where R1 and R2 join together to form a cyclic compound incorporating the —O—S(O)2—O— group; wherein at least one R1 and R2 is fluorinated.

Abstract: A non-aqueous electrolyte comprising a salt, a non-aqueous solvent, and a compound of Formula (I), (II), or (III), where E is —S(O)— or S(O)2—:

Abstract: An electrochemic device includes an electrolyte that includes a compound according to Formula (I):

Abstract: An electrochemical cell includes a cathode active material, lithium metal, a separator, and an electrolyte including a lithium salt and a fluorinated glycol ether.

Abstract: An electrochemical cell includes a cathode active material, lithium metal, a separator, and an electrolyte comprising a lithium salt, an organic aprotic solvent and a fluorinated sulfone represented by Formula II:

Abstract: A non-aqueous electrolyte comprising a salt, a non-aqueous solvent, and a compound of Formula (I), (II), or (III), where E is —S(O)— or S(O)2—:

Abstract: An electrochemic device includes an electrolyte that includes a compound according to Formula (I):

Abstract: An electrochemical cell includes a cathode active material, lithium metal, a separator, and an electrolyte including a lithium salt and a fluorinated glycol ether.

Abstract: An electrochemical cell includes a cathode comprising a cathode active material; an anode comprising lithium metal (Li0); a separator; and an electrolyte comprising a lithium salt, an organic aprotic solvent, and a difluoroethylene carbonate which is: or a mixture of any two or more thereof.

Abstract: An electrochemical cell includes a cathode active material, lithium metal, a separator, and an electrolyte comprising a lithium salt, an organic aprotic solvent and a fluorinated sulfone represented by Formula II: