Uchicago Argonne, LLC

Jihyeon Gim

Jason R Croy

Eungje Lee

Jeffrey W Elam

Anil U Mane

Hakim H Iddir

Arturo Gutierrez

Devika Choudhury

Jinhyup Han

A method for coating of lithium ion electrode materials via atomic layer deposition. The coated materials may be integrated in part as a dopant in the electrode itself via heat treatment forming a doped lithium electrode.

Modification of lithium ion electrode materials via atomic layer deposition techniques

Substantially defect-free layered lithium nickel oxide materials of Formula (I): Li(NiM)Oand Formula (II): LiNiMOare provided herein, wherein M is one or more metal selected from the group consisting of Co, Mn, Al, Mg, Ti, B, Zr, Nb, and Mo; 0≤x≤0.05; and 0≤y≤0.1, 0.97≤a≤1.03; 0.9≤b≤1; 0≤c≤0.1; and 0.97≤(b+c)≤1.03; and the material has a layered structure with no more than about 1.2 percent disorder between lithium and transition metal (TM) layers, as determined by structural refinement calculations on x-ray diffraction (XRD) data, compared to an ideal layered LiNiOstructure. The materials can be formed by heating Ni(OH)or NiO with lithium hydroxide at a temperature in the range of about 650 to 680° C.

Defect-free lithium nickel(3+) oxide materials for use in lithium batteries and method of preparation thereof

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Naperville, IL, United States of America

Jihyeon Gim