A process can be used to produce a charge storage unit, especially a secondary battery, the electrodes of which contain an organic redox-active polymer, and which includes a polymeric solid electrolyte. The solid electrolyte is obtained by polymerizing from mixtures of acrylates with methacrylates in the presence of at least one ionic liquid, which imparts advantageous properties to the charge storage unit.

A positive electrode for an electrochemical cell of a secondary lithium metal battery may include an aluminum metal substrate and a protective layer disposed on a major surface of the aluminum metal substrate. The protective layer may include a conformal aluminum fluoride coating layer. A positive electrode active material layer may overlie the protective layer on the major surface of the aluminum metal substrate. The positive electrode active material layer may include a plurality of interconnected pores, which may be infiltrated with a nonaqueous electrolyte that includes a lithium imide salt.

The present disclosure relates to an ionic liquid-based quasi-solid-state electrolyte in a lithium battery and a preparation method thereof. The quasi-solid-state electrolyte is of a porous network structure, which is obtained by a condensation reaction of a lithium salt, ionic liquid, a silane coupling agent and a catalyst, and has a high ionic conductivity. The quasi-solid-state electrolyte can stabilize a stripping/deposition process of lithium metal and inhibit growth of lithium dendrites, and shows a low overpotential and long-term cycle stability in a constant current polarization process. The interface impedance of a lithium metal sheet and the quasi-solid-state electrolyte is low, and is hardly increased with the age of the battery.

The present invention is directed to aqueous solid polymer electrolytes that comprise a lithium salt and battery cells comprising the same. The present invention is also directed to methods of making the electrolytes and methods of using the electrolytes in batteries and other electrochemical technologies.

One aspect of the invention relates to an ionogel electrolyte ink including an ionic liquid; and a gelling matrix material. The gelling matrix material is mixed with the ionic liquid in at least one solvent.

Disclosed herein is a lithium ion battery which operates stably at high temperatures. The battery disclosed herein has a chemical composition amenable to long-term operation at elevated temperatures and employs a lithium-based cathode, a silicon-based anode, and a piperidinium-based electrolyte solution.

A rechargeable calcium battery formed from a calcium metal anode, a cathode formed from a composite carbon/sulfur (C/S), a metal oxide, or a metal sulfide, and a multi-component electrolyte containing a mixture of different salts. The calcium anode is formed as a thin, pure calcium metal foil that is polished and combined with a copper collector for redox activity. The cathode may be formed from a carbon-sulfur (CS) composite or metal oxide/sulfide, such as CaM.sub.xO.sub.y or CaM.sub.xS.sub.y, or formed from binary and ternary metals, such as CaM1aM2bO.sub.y/S.sub.y and CaM.sub.1aM.sub.2bM.sub.3cO.sub.y/S.sub.y. The battery also includes a multi-component electrolyte including calcium salts, such as Ca(TSFI).sub.2, Ca(ClO.sub.4).sub.2, Ca(BF.sub.4).sub.2, and CaPF.sub.6, or the pairing of lithium, sodium and potassium salts with one of the anions, such as Ca(TFSI), NaPF.sub.6, and Li(TFSI).

An ionic liquid for adding to an electrolyte of a lithium-ion battery, the ionic liquid comprises a compound with a dual core structure having the general formula (I): ##STR00001##
wherein each of cationic group X.sub.1 and X.sub.2 are heterocyclic aromatic and amine.

Here is described an aluminum-ion battery technology having an electrolyte comprising an aluminum trichloride (Al—Cl3)/trimethylamine hydrochloride ionic liquid, aluminum metal as the anode material, and a compatible cathode active material. A wide variety of applications ranging from energy storage in consumer electronics to electric vehicles and to grid storage is also considered.

An electrolyte is provided for the zinc based rechargeable redox static energy storage devices, the electrolyte comprising one or more inorganic transition metal salt(s) of zinc; one or more Metal hydroxide(s); a eutectic solvent comprising one or more derivative(s) of methanesulfonic acid selected from its salts, one or more ammonium salt(s) one or more hydrogen bond donor(s). The electrolyte is thermally and chemically stable and has pH ranging from 5 to 7, and therefore does not facilitate evolution of hydrogen and oxygen during its application.