Cathode precursors for aluminum batteries and methods of making cathodes for aluminum batteries

摘要

Variations of the invention provide an improved aluminum battery consisting of an aluminum anode, a non-aqueous electrolyte, and a cathode comprising a metal oxide, a metal fluoride, a metal sulfide, or sulfur. The cathode can be fully reduced upon battery discharge via a multiple-electron reduction reaction. In some embodiments, the cathode materials are contained within the pore volume of a porous conductive carbon scaffold. Batteries provided by the invention have high active material specific energy densities and good cycling stabilities at a variety of operating temperatures.

主权项

1. A cathode precursor to a metal fluoride cathode for an aluminum battery, said cathode precursor comprising a conductive scaffold with pores having at least one dimension below about one micrometer, a precursor material contained in said pores, wherein said precursor material comprises one or more metals, in non-fluorinated form, selected from the group consisting of Fe, Co, Cu, Ni, Mo, and Sn, and a fluorinating agent contained in said pores, wherein said fluorinating agent is capable of fluorinating said precursor material.