Abstract: Methods of preparing desodiated and oxidized sodium nickelate materials using persulfate solution, and sodium nickelate materials prepared by such methods, are disclosed. Also disclosed are methods of preparing pre-aged beta nickelates using a hydroxide solution, and beta nickelates prepared by such methods. An alkaline cathode composition comprising electrolytic manganese dioxide and the desodiated and oxidized sodium nickelate and beta nickelates are also provided, as are alkaline electrochemical cells comprising these nickelates and compositions.

Abstract: A system, a machine-readable storage medium storing instructions, and a computer-implemented method are described herein for a Virtual Reality Engine that generates first object data based on a first physical gesture applied to a first object presented in a mobile device view displayed at a first mobile device. The Virtual Reality (“VR”) Engine generates second object data based on a second physical gesture applied to a second object presented in a second mobile device view displayed at a second mobile device. The VR Engine concurrently causes display of the first object and the second object in the respective mobile device views and in a virtual reality view at a virtual reality device. The VR Engine concurrently causes display of the first object data and the second object data in the respective mobile device views and the virtual reality view.