Abstract: A non-aqueous flow cell energy storage device comprises a ionically conductive separator, which separator comprises a polyurethane prepared by curing an isocyanate capped prepolymer, which prepolymer was prepared from a polyol having polycarbonate backbone, wherein the separator may be impregnated with electrolyte salts and/or swelled by an organic solvent.

Abstract: A non-aqueous flow cell energy storage device comprises a ionically conductive separator, which separator comprises a polyurethane prepared by curing an isocyanate capped prepolymer, which prepolymer was prepared from a polyol having polycarbonate backbone, wherein the separator may be impregnated with electrolyte salts and/or swelled by an organic solvent.

Abstract: This invention pertains to passivation-free solid-state rechargeable batteries composed of Li.sub.4 Ti.sub.5 O.sub.12 anode, a solid polymer electrolyte and a high voltage cathode. The solid polymer electrolyte comprises a polymer host, such as polyacrylonitrile, poly(vinyl chloride), poly(vinyl sulfone), and poly(vinylidene fluoride), plasticized by a solution of a Li salt in an organic solvent. The high voltage cathode includes LiMn.sub.2 O.sub.4, LiCoO.sub.2, LiNiO.sub.2 and LiV.sub.2 O.sub.5 and their derivatives.

Abstract: A battery is provided comprising an aluminum anode, an aqueous sulfur catholyte, and a second electrode capable of reducing sulfur. A polysulfide cathode (for use with the above battery or independently) includes solid sulfur at ambient temperatures, and the cathodic charge stored in that solid sulfur can be directly accessed. An anode (for use with the above battery or independently) is also described, with the ability to utilize a substantial fraction of the anodic charge stored in the aluminum when immersed in electrolytes containing over 10 molar alkaline hydroxide.

Abstract: A battery is provided comprising an aluminum anode, an aqueous sulfur catholyte, and a second electrode capable of reducing sulfur. A polysulfide cathode (for use with the above battery or independently) includes solid sulfur at ambient temperatures, and the cathodic charge stored in that solid sulfur can be directly accessed. An anode (for use with the above battery or independently) is also described, with the ability to utilize a substantial fraction of the anodic charge stored in the aluminum when immersed in electrolytes containing over 10 molar alkaline hydroxide.