ALEXANDRIA, Va., July 15 -- United States Patent no. 12,665,217, issued on June 23, was assigned to International Business Machines Corp. (Armonk, N.Y.).

"Rechargeable metal halide battery" was invented by Jangwoo Kim (San Jose, Calif.), Young-hye Na (San Jose, Calif.) and Gregory Breyta (San Jose, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a rechargeable metal halide battery with an anode; an electrolyte including (i) an oxidizing gas, (ii) a metal halide, and (iii) a heterocyclic compound solvent; and a current collector contacting the active cathode material. As the metal halide of the electrolyte acts as an active cathode material that can receive, store, and release metal ions dur...