UChicago Argonne, LLC

Jinhyup Han

Eungje Lee

Christopher S Johnson

Jehee Park

Jason R Croy

Jihyeon Gim

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

Lead/lead oxide/carbon ('Pb—O—C') nanocomposite materials that are useful as electrode active materials for electrodes in lithium and sodium batteries are formed by grinding a mixture of a lead oxide material and a carbon material in a high energy ball mill. A Pb—O—C nanocomposite as described herein comprises Pb and lead oxide nanoparticles homogeneously dispersed in a carbon nanoparticle matrix. In the nanocomposite, other elements (e.g., transition metals, Al, Si, P, Sn, Sb, and Bi) can be alloyed with the Pb nanoparticles, incorporated as a mixed oxide with the lead oxide nanoparticles, or can be present as distinct elemental or oxide nanoparticles within the carbon nanoparticle matrix.

Lead-lead oxide-carbon nanocomposite for energy storage cells and method of preparation

Lead/lead oxide/carbon ('Pb&#x2014;O&#x2014;C') nanocomposite materials are useful as electrode active materials for electrodes in lithium and sodium batteries. A Pb&#x2014;O&#x2014;C nanocomposite as described herein comprises Pb and lead oxide nanoparticles homogeneously dispersed in a carbon nanoparticle matrix. In the nanocomposite, the other element or elements (e.g., transition metals, Al, Si, P, Sn, Sb, and Bi) can be alloyed with the Pb nanoparticles, incorporated as a mixed oxide with the lead oxide nanoparticles, or can be present as distinct elemental or oxide nanoparticles within the carbon nanoparticle matrix. In some embodiments, the additional element or elements are present as alloys and mixed oxides with the Pb materials and as distinct elemental and/or oxide nanoparticles. In a preferred embodiment the Pb nanoparticles surface is oxidized to lead oxide thus creating a shell on core nanostructure.

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Woodridge, IL, United States of America

Jinhyup Han